2002-06-18 Chris Hanson <cph@zurich.ai.mit.edu>

2002-06-18 Chris Hanson <[email protected]>

* COPYING[1.2]:
Add exemption permitting use with OpenSSL.

2002-06-17 Chris Hanson <[email protected]>

* runtime/version.scm[14.208]:
Update version for 7.7.1 release.

* microcode/ntapi.h[1.13], microcode/ntsock.c[1.13],
microcode/version.h[11.184]:
Implement server_channel_n_read, which is required by the runtime
system to use server sockets.

2002-06-15 Chris Hanson <[email protected]>

* microcode/ntscreen.c[1.47]:
Initialize "length" field of structure prior to call. Thanks to
Lawrence Wood for the bug fix.

2002-06-04 Chris Hanson <[email protected]>

* imail/imail-summary.scm[1.48]:
Fix bug: expunge could generate errors due to mistaken overwriting of
the summary-buffer mark for a deleted message.

2002-04-24 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.413], runtime/uenvir.scm[14.57]:
Use lambda abstraction rather than bypassing it.

* runtime/lambda.scm[14.17]:
Implement LAMBDA-NAMES-VECTOR.

2002-04-23 Chris Hanson <[email protected]>

* microcode/ntsock.c[1.12]:
Add missing call to transaction_begin.

2002-04-17 Chris Hanson <[email protected]>

* runtime/mit-syntax.scm[14.6]:
Don't reserve names in top-level environments. The revised report
requires that top-level definitions act like assignments when the name
is already bound.

* runtime/syntactic-closures.scm[14.10]:
Fix history procedures to specially handle null history. This
occasionally comes up with syntactic keywords.

2002-03-29 Chris Hanson <[email protected]>

* microcode/bchdmp.c[9.90.4.1], microcode/bchgcl.c[9.54.4.1],
microcode/bchmmg.c[9.98.8.1], microcode/boot.c[9.105.8.1],
microcode/confshared.h[11.3.2.1], microcode/const.h[9.46.8.1],
microcode/debug.c[9.53.8.1], microcode/fasl.h[9.38.12.1],
microcode/fasload.c[9.91.4.1], microcode/gccode.h[9.58.8.1],
microcode/gctype.c[9.34.12.1], microcode/interp.c[9.92.8.1],
microcode/lookup.h[9.55.8.1], microcode/memmag.c[9.66.8.1],
microcode/ppband.c[9.50.8.1], microcode/purify.c[9.61.4.1],
microcode/types.h[9.38.8.1], microcode/wabbit.c[1.9.4.1]:
Eliminate references to TC_NULL in favor of TC_FALSE. Add symbolic
definitions for datum values of TC_CONSTANT.

2002-03-26 Chris Hanson <[email protected]>

* imail/imap-response.scm[1.45], imail/todo.txt[1.138]:
If EOF encountered while reading server response, signal an error.
This prevents the uninterruptible infinite loop when the network goes
down while the connection is open.

2002-03-25 Chris Hanson <[email protected]>

* imail/imail-file.scm[1.81], imail/imail-rmail.scm[1.70],
imail/imail-top.scm[1.283], imail/imail-umail.scm[1.51],
imail/imail.pkg[1.96], imail/load.scm[1.39], imail/todo.txt[1.137]:
Change M-o command to act like o if the output file is in a known
format.

2002-03-19 Chris Hanson <[email protected]>

* compiler/fgopt/closan.scm[4.30]:
Tweak comment.

2002-03-15 Chris Hanson <[email protected]>

* microcode/configure.in[11.16]:
Broaden pattern used to match FreeBSD versions.

* cref/toplev.scm[1.18]:
Fix missed reference in last change.

2002-03-14 Chris Hanson <[email protected]>

* cref/redpkg.scm[1.26], cref/toplev.scm[1.17]:
Allow end user to specify operating-system type, in order to do cross
compilation.

* runtime/packag.scm[14.40]:
Change PACKAGE-SET-PATHNAME to accept an optional argument that
specifies the operating-system type. This is useful for
cross-compilation.

2002-03-12 Chris Hanson <[email protected]>

* runtime/version.scm[14.207]:
Update version number for release.

2002-03-11 Chris Hanson <[email protected]>

* microcode/cmpauxmd/i386.m4[1.57]:
Use pushad/popad rather than pusha/popa. Latter don't work properly
on Windows, and former aren't implemented by GCC.

2002-03-06 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.187]:
Change the following to allow their BUFFER argument to be any object
accepted by ->BUFFER:

DEFINE-VARIABLE-LOCAL-VALUE!
UNDEFINE-VARIABLE-LOCAL-VALUE!
VARIABLE-LOCAL-VALUE?
SET-VARIABLE-LOCAL-VALUE!

* edwin/dos.scm[1.53], edwin/edwin.pkg[1.281], edwin/kilcom.scm[1.72],
edwin/os2.scm[1.51], edwin/xterm.scm[1.69]:
Rewrite mechanism that controls whether PRIMARY or CLIPBOARD selection
is used on X. Now cut and paste are separately configurable, and the
defaults are different for each. This should provide better behavior
on older systems while making the default more usable on newer ones.

2002-03-02 Chris Hanson <[email protected]>

* runtime/syntax-output.scm[14.5]:
Don't output bare block declarations at top level; always wrap them in
an open block. Otherwise, SF won't act on the declarations, just
passing them through to the compiler.

* etc/compile.scm[1.4]:
The "star-parser" directory must be compiled prior to the "imail"
directory.

2002-03-01 Chris Hanson <[email protected]>

* runtime/syntactic-closures.scm[14.9],
runtime/syntax-output.scm[14.4]:
Fix up various problems in the name management. This now appears to
work properly.

* runtime/runtime.pkg[14.412], runtime/scomb.scm[14.20]:
Add procedures to get a list of subexpressions of an scode combinator.

* runtime/syntactic-closures.scm[14.8],
runtime/syntax-output.scm[14.3]:
Rewrite renaming code to allocate temporary uninterned symbols during
expansion, then map them to interned symbols in a post pass. Mapping
algorithm avoids renaming where possible, keeping original names of
identifiers in outermost frames in cases of conflict.

* runtime/make.scm[14.86], runtime/option.scm[14.41],
runtime/optiondb.scm[1.14], runtime/runtime.pkg[14.411]:
Hash-table abstraction is now always loaded. It's no longer necessary
to use LOAD-OPTION prior to use.

* runtime/mit-syntax.scm[14.5], runtime/syntax-output.scm[14.2]:
Rewrite the declaration processor to make it reusable for alpha
substitution.

2002-02-25 Chris Hanson <[email protected]>

* edwin/fileio.scm[1.157]:
Fix another problem with NAME->VARIABLE being passed a string.

2002-02-22 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.282]:
Show MIME message/delivery-status parts inline. Simplify the MIME
inline/outline decision logic.

* imail/imail-top.scm[1.281]:
Add alternate Unicode charsets from RFC-1641.

* compiler/machines/alpha/instr1.scm[1.6],
compiler/machines/alpha/instr2.scm[1.4],
compiler/machines/alpha/instr3.scm[1.4],
compiler/machines/alpha/lapgen.scm[1.9],
compiler/machines/alpha/rules3.scm[1.10],
compiler/machines/alpha/rulflo.scm[1.6],
compiler/machines/bobcat/assmd.scm[1.39],
compiler/machines/bobcat/dassm1.scm[4.22],
compiler/machines/bobcat/dassm2.scm[4.25],
compiler/machines/bobcat/flinstr1.scm[1.4],
compiler/machines/bobcat/flinstr2.scm[1.4],
compiler/machines/bobcat/instr2.scm[1.21],
compiler/machines/bobcat/instr3.scm[1.20],
compiler/machines/bobcat/instr4.scm[1.6],
compiler/machines/bobcat/lapgen.scm[4.53],
compiler/machines/bobcat/machin.scm[4.34],
compiler/machines/bobcat/rules3.scm[4.43],
compiler/machines/mips/assmd.scm[1.5],
compiler/machines/mips/dassm1.scm[1.7],
compiler/machines/mips/dassm2.scm[1.7],
compiler/machines/mips/instr1.scm[1.9],
compiler/machines/mips/instr2a.scm[1.7],
compiler/machines/mips/instr2b.scm[1.6],
compiler/machines/mips/instr3.scm[1.5],
compiler/machines/mips/lapgen.scm[1.18],
compiler/machines/mips/mips.scm[1.4],
compiler/machines/mips/rules3.scm[1.20],
compiler/machines/mips/rulflo.scm[1.10],
compiler/machines/sparc/assmd.scm[1.4],
compiler/machines/sparc/instr1.scm[1.4],
compiler/machines/sparc/instr2a.scm[1.4],
compiler/machines/sparc/instr2b.scm[1.4],
compiler/machines/sparc/instr3.scm[1.4],
compiler/machines/sparc/lapgen.scm[1.5],
compiler/machines/sparc/rules3.scm[1.4],
compiler/machines/sparc/rulflo.scm[1.4],
compiler/machines/spectrum/assmd.scm[1.33],
compiler/machines/spectrum/dassm1.scm[4.22],
compiler/machines/spectrum/dassm2.scm[4.23],
compiler/machines/spectrum/instr1.scm[1.6],
compiler/machines/spectrum/instr3.scm[1.5],
compiler/machines/spectrum/lapgen.scm[4.50],
compiler/machines/spectrum/rules3.scm[4.44],
compiler/machines/spectrum/rulfix.scm[4.50],
compiler/machines/spectrum/rulflo.scm[4.42],
compiler/machines/vax/assmd.scm[4.9],
compiler/machines/vax/dassm1.scm[4.9],
compiler/machines/vax/dassm2.scm[4.15],
compiler/machines/vax/lapgen.scm[4.18],
compiler/machines/vax/rules3.scm[4.14],
compiler/machines/vax/rulfix.scm[1.8]:
Eliminate non-hygienic macros.

* runtime/syntactic-closures.scm[14.7]:
If a synthetic identifier is bound at top level, rename it to a
special name so that it doesn't conflict with other non-EQ?
identifiers.

* runtime/parser-buffer.scm[1.4], runtime/rgxcmp.scm[1.121],
sf/object.scm[4.15]:
Don't close the identifier of a definition.

2002-02-21 Chris Hanson <[email protected]>

* edwin/info.scm[1.137]:
Fix FIND-DIR-NODE-FILES, which was returning the pathname list in
reverse order.

* edwin/hlpcom.scm[1.123]:
Update copyright statement.

2002-02-19 Chris Hanson <[email protected]>

* runtime/syntactic-closures.scm[14.6],
runtime/syntactic-closures.scm[14.5]:
In STRIP-SYNTACTIC-CLOSURES, don't copy the argument unless it has
embedded syntactic closures.

* runtime/mit-syntax.scm[14.4]:
Fix typo in previous change.

* runtime/mit-syntax.scm[14.3]:
Fix some missing syntax: FLUID-LET must allow (access ...) as LHS in
binding. Named LET must allow unassigned bindings. RHS of syntax
binding must allow arbitrary procedure-valued expression, which is
treated as a non-hygienic macro expander.

* imail/imail-top.scm[1.280]:
Add "unknown-8bit" to list of known character sets.

2002-02-16 Chris Hanson <[email protected]>

* compiler/machines/C/lapgen.scm[1.14],
compiler/machines/C/rules3.scm[1.11],
compiler/machines/C/rulfix.scm[1.5],
compiler/machines/C/rulflo.scm[1.7],
compiler/machines/alpha/assmd.scm[1.4],
compiler/machines/alpha/dassm1.scm[1.4],
compiler/machines/alpha/dassm2.scm[1.4],
compiler/machines/spectrum/instr2.scm[1.11],
compiler/machines/vax/dsyn.scm[1.12],
compiler/machines/vax/insmac.scm[1.17],
compiler/machines/vax/instr1.scm[1.10],
compiler/machines/vax/instr2.scm[1.11],
compiler/machines/vax/instr2.scm[1.10],
compiler/machines/vax/instr3.scm[1.14]:
Eliminate non-hygienic macros.

2002-02-14 Chris Hanson <[email protected]>

* compiler/back/asmmac.scm[1.17], compiler/back/syntax.scm[1.29],
compiler/machines/alpha/insmac.scm[1.6],
compiler/machines/bobcat/insmac.scm[1.132],
compiler/machines/i386/insmac.scm[1.17],
compiler/machines/mips/insmac.scm[1.6],
compiler/machines/sparc/insmac.scm[1.5],
compiler/machines/spectrum/insmac.scm[1.6],
compiler/machines/vax/insmac.scm[1.16]:
Change most instruction-set macros to use reverse syntactic closure
style, and propagate changes down through the maze of supporting
procedures.

* edwin/hlpcom.scm[1.122]:
Fix bug: name->foo procedures no longer accept string arguments.

* compiler/back/asmmac.scm[1.16], compiler/back/asmmac.scm[1.15],
compiler/base/macros.scm[4.28], compiler/base/pmpars.scm[1.7],
compiler/machines/bobcat/insmac.scm[1.131],
compiler/machines/i386/insmac.scm[1.16]:
Make sure that all expressions are properly closed.

2002-02-13 Chris Hanson <[email protected]>

* compiler/machines/i386/insmac.scm[1.15]:
Make sure that all expressions are properly closed.

* compiler/machines/alpha/insmac.scm[1.5],
compiler/machines/bobcat/insmac.scm[1.130]:
Eliminate non-hygienic macros.

* edwin/clsmac.scm[1.10]:
Fix bug: WITH-INSTANCE-VARIABLES should have used
MAKE-UNMAPPED-MACRO-REFERENCE-TRAP rather than
MAKE-MACRO-REFERENCE-TRAP.

* runtime/mit-syntax.scm[14.2]:
Modify CASE syntactic keyword to generate better code for tests.

* compiler/etc/disload.scm[1.12], edwin/intmod.scm[1.116],
imail/fake-env.scm[1.6], runtime/option.scm[14.40],
runtime/runtime.pkg[14.410], runtime/uenvir.scm[14.56],
runtime/xeval.scm[1.10], swat/scheme/load.scm[1.9]:
Rename MAKE-NULL-TOP-LEVEL-ENVIRONMENT to MAKE-ROOT-TOP-LEVEL-ENVIRONMENT.
Eliminate alias for EXTEND-INTERPRETER-ENVIRONMENT.

2002-02-12 Chris Hanson <[email protected]>

* runtime/syntactic-closures.scm[14.4], runtime/uenvir.scm[14.55]:
Don't signal error from ENVIRONMENT-LOOKUP-MACRO if name is unbound.

* runtime/runtime.pkg[14.409], runtime/uenvir.scm[14.54]:
Add aliases:

interpreter-environment? => top-level-environment?
extend-interpreter-environment => extend-top-level-environment
make-null-interpreter-environment => make-null-top-level-environment

* win32/ffimacro.scm[1.8]:
Don't close the identifier of a definition.

* runtime/make.scm[14.85], runtime/runtime.pkg[14.408],
runtime/syntactic-closures.scm[14.3]:
Implement REVERSE-SYNTACTIC-ENVIRONMENTS. Add bindings for
SYSTEM-GLOBAL-SYNTAX-TABLE and EXTEND-IC-ENVIRONMENT to ease upgrading.

* compiler/back/asmmac.scm[1.14], compiler/base/macros.scm[4.27],
compiler/base/pmpars.scm[1.6], compiler/base/pmpars.scm[1.5],
compiler/machines/i386/assmd.scm[1.6],
compiler/machines/i386/dassm1.scm[1.13],
compiler/machines/i386/dassm2.scm[1.12],
compiler/machines/i386/dassm3.scm[1.10],
compiler/machines/i386/insmac.scm[1.14],
compiler/machines/i386/instr1.scm[1.16],
compiler/machines/i386/instr2.scm[1.10],
compiler/machines/i386/instrf.scm[1.18],
compiler/machines/i386/lapgen.scm[1.31],
compiler/machines/i386/rules3.scm[1.38],
compiler/machines/i386/rulfix.scm[1.34],
compiler/machines/i386/rulflo.scm[1.25]:
Eliminate non-hygienic macros.

2002-02-10 Chris Hanson <[email protected]>

* runtime/defstr.scm[14.40], runtime/sysmac.scm[14.10]:
Don't close the identifier of a definition.

2002-02-09 Chris Hanson <[email protected]>

* 6001/arith.scm[1.10], edwin/buffer.scm[1.186],
edwin/calias.scm[1.25], edwin/dosproc.scm[1.9],
edwin/macros.scm[1.72], edwin/search.scm[1.155],
edwin/tterm.scm[1.34], edwin/xcom.scm[1.21], runtime/arith.scm[1.50],
runtime/graphics.scm[1.21], runtime/infstr.scm[1.15],
runtime/parse.scm[14.37], runtime/port.scm[1.23],
runtime/rgxcmp.scm[1.120], runtime/starbase.scm[1.17],
runtime/sysmac.scm[14.9], runtime/vector.scm[14.21],
sf/object.scm[4.14]:
Don't close the identifier of a definition.

* compiler/base/macros.scm[4.26], edwin/clsmac.scm[1.9],
runtime/defstr.scm[14.39], sf/toplev.scm[4.24], sos/macros.scm[1.14]:
Use CLOSE-SYNTAX where possible.

2002-02-08 Chris Hanson <[email protected]>

* runtime/syntactic-closures.scm[14.2]:
Change renaming algorithm to treat synthetic identifiers differently
from symbols. The new algorithm implements an EQ?-isomorphic map
between identifiers and renamed symbols.

* compiler/base/cfg1.scm[4.7]:
Eliminate instances of FALSE.

* compiler/machines/C/compiler.pkg[1.14],
compiler/machines/alpha/compiler.pkg[1.17],
compiler/machines/bobcat/compiler.pkg[1.54],
compiler/machines/mips/compiler.pkg[1.24],
compiler/machines/spectrum/compiler.pkg[1.54],
compiler/machines/vax/compiler.pkg[1.26]:
Add missing macro imports.

* compiler/back/asmmac.scm[1.13], compiler/back/asmmac.scm[1.12],
compiler/base/cfg1.scm[4.6], compiler/base/macros.scm[4.25],
compiler/base/macros.scm[4.24], compiler/base/scode.scm[4.14],
compiler/base/utils.scm[4.24], compiler/etc/comcmp.scm[1.11],
compiler/fggen/canon.scm[1.22], compiler/fggen/canon.scm[1.21],
compiler/fggen/fggen.scm[4.37], compiler/fggen/fggen.scm[4.36],
compiler/machines/C/compiler.pkg[1.13],
compiler/machines/alpha/compiler.pkg[1.16],
compiler/machines/bobcat/compiler.pkg[1.53],
compiler/machines/i386/compiler.pkg[1.29],
compiler/machines/mips/compiler.pkg[1.23],
compiler/machines/spectrum/compiler.pkg[1.53],
compiler/machines/vax/compiler.pkg[1.25],
compiler/rtlbase/rtlcfg.scm[4.10], compiler/rtlbase/rtlreg.scm[4.9],
compiler/rtlbase/valclass.scm[1.5]:
Eliminate non-hygienic macros.

* runtime/syntax-check.scm[14.2]:
Fix error message in PARSE-MIT-LAMBDA-LIST.

2002-02-07 Chris Hanson <[email protected]>

* compiler/back/asmmac.scm[1.11], compiler/back/lapgn3.scm[4.15],
compiler/base/crsend.scm[1.13], compiler/base/lvalue.scm[4.25]:
Eliminate non-hygienic macros.

2002-02-05 Chris Hanson <[email protected]>

* microcode/utabmd.scm[9.84]:
Fix bug: top-level syntax definition was being loaded into global
environment.

2002-02-04 Chris Hanson <[email protected]>

* win32/ffimacro.scm[1.7]:
Fix fatal bug in previous revision.

2002-02-03 Chris Hanson <[email protected]>

* 6001/make.scm[15.34], compiler/base/make.scm[4.117],
cref/make.scm[1.25], edwin/make.scm[3.114], imail/load.scm[1.38],
sos/load.scm[1.11], win32/make.scm[1.10], xml/load.scm[1.5]:
Update version to reflect changes for new syntax engine.

* 6001/arith.scm[1.9], compiler/base/constr.scm[1.4],
compiler/base/macros.scm[4.23],
compiler/machines/i386/compiler.pkg[1.28], edwin/buffer.scm[1.185],
edwin/buffrm.scm[1.59], edwin/bufwin.scm[1.310],
edwin/calias.scm[1.24], edwin/clscon.scm[1.8], edwin/clsmac.scm[1.8],
edwin/comman.scm[1.86], edwin/comwin.scm[1.147],
edwin/dosproc.scm[1.8], edwin/edtfrm.scm[1.91],
edwin/edwin.pkg[1.280], edwin/macros.scm[1.71],
edwin/modes.scm[1.35], edwin/modwin.scm[1.42],
edwin/regexp.scm[1.78], edwin/schmod.scm[1.59],
edwin/search.scm[1.154], edwin/syntax.scm[1.89],
edwin/tterm.scm[1.33], edwin/utils.scm[1.51], edwin/utlwin.scm[1.60],
edwin/window.scm[1.160], edwin/xcom.scm[1.20], edwin/xform.scm[1.12],
microcode/cmpintmd/i386.h[1.35], microcode/os2pm.scm[1.11],
microcode/utabmd.scm[9.83], runtime/Attic/illdef.scm[1.6],
runtime/Attic/macros.scm[1.7], runtime/Attic/syntab.scm[14.10],
runtime/Attic/syntax.scm[14.53], runtime/apply.scm[1.5],
runtime/arith.scm[1.49], runtime/debug.scm[14.43],
runtime/defstr.scm[14.38], runtime/ed-ffi.scm[1.32],
runtime/error.scm[14.57], runtime/graphics.scm[1.20],
runtime/infstr.scm[1.14], runtime/list.scm[14.30],
runtime/make.scm[14.84], runtime/mit-syntax.scm[14.1],
runtime/os2winp.scm[1.18], runtime/parse.scm[14.36],
runtime/parser-buffer.scm[1.3], runtime/port.scm[1.22],
runtime/recslot.scm[1.7], runtime/rgxcmp.scm[1.119],
runtime/runtime.pkg[14.407], runtime/scomb.scm[14.19],
runtime/starbase.scm[1.16], runtime/string.scm[14.47],
runtime/syntactic-closures.scm[14.1], runtime/syntax-check.scm[14.1],
runtime/syntax-output.scm[14.1], runtime/syntax-rules.scm[14.1],
runtime/syntax-transforms.scm[14.1], runtime/sysmac.scm[14.8],
runtime/unsyn.scm[14.28], runtime/vector.scm[14.20],
runtime/version.scm[14.206], sf/make.scm[4.41], sf/object.scm[4.13],
sf/sf.pkg[4.17], sf/toplev.scm[4.23], sos/class.scm[1.12],
sos/instance.scm[1.14], sos/macros.scm[1.13],
star-parser/Attic/synchk.scm[1.2], star-parser/compile.scm[1.5],
star-parser/load.scm[1.12], star-parser/matcher.scm[1.29],
star-parser/parser.pkg[1.18], star-parser/parser.scm[1.32],
star-parser/shared.scm[1.23],
swat/scheme/control-floating-errors.scm[1.4],
swat/scheme/load.scm[1.8], swat/scheme/mit-xhooks.scm[1.5],
swat/scheme/scc-macros.scm[1.4], wabbit/test-wabbit.scm[1.4],
win32/ffimacro.scm[1.6], win32/win32.sf[1.9], win32/win_ffi.scm[1.9]:
Merge hygienic-macros branch into trunk.

2002-02-02 Chris Hanson <[email protected]>

* edwin/macros.scm[1.70.2.1],
swat/scheme/control-floating-errors.scm[1.3.2.1],
swat/scheme/load.scm[1.7.2.1], swat/scheme/mit-xhooks.scm[1.4.2.1],
swat/scheme/scc-macros.scm[1.3.2.1], wabbit/test-wabbit.scm[1.3.2.1]:
Eliminate non-hygienic macros.

* edwin/comman.scm[1.85.6.3], edwin/comman.scm[1.85.6.2]:
Extend MAKE-VARIABLE to accept arguments that initialize the remaining
record fields.

* edwin/comman.scm[1.85.6.1], edwin/edwin.pkg[1.279.2.2],
edwin/modes.scm[1.34.6.1]:
Eliminate CANONICALIZE-NAME.

2002-02-01 Chris Hanson <[email protected]>

* sf/sf.pkg[4.16.2.2], sf/toplev.scm[4.22.2.2],
win32/win32.sf[1.8.2.1]:
Rip out remaining pathname-map stuff. It's nearly impossible to make
this work right.

* 6001/arith.scm[1.8.2.1], edwin/buffer.scm[1.184.2.1],
edwin/calias.scm[1.23.2.1], edwin/dosproc.scm[1.7.2.1],
edwin/regexp.scm[1.77.2.1], edwin/search.scm[1.153.2.1],
edwin/syntax.scm[1.88.2.1], edwin/tterm.scm[1.32.2.1],
edwin/utils.scm[1.50.2.1], edwin/xcom.scm[1.19.2.1],
microcode/os2pm.scm[1.10.2.1], microcode/utabmd.scm[9.82.2.1],
runtime/apply.scm[1.4.2.1], runtime/arith.scm[1.48.2.1],
runtime/debug.scm[14.42.2.1], runtime/error.scm[14.56.2.1],
runtime/graphics.scm[1.19.2.1], runtime/infstr.scm[1.13.2.1],
runtime/list.scm[14.29.2.1], runtime/make.scm[14.83.2.5],
runtime/os2winp.scm[1.17.2.1], runtime/parse.scm[14.35.2.1],
runtime/parser-buffer.scm[1.2.2.1], runtime/port.scm[1.21.2.1],
runtime/recslot.scm[1.6.2.1], runtime/rgxcmp.scm[1.118.2.1],
runtime/scomb.scm[14.18.2.1], runtime/starbase.scm[1.15.2.1],
runtime/string.scm[14.46.2.1], runtime/sysmac.scm[14.7.2.1],
runtime/vector.scm[14.19.2.1], sf/object.scm[4.12.2.1],
win32/ffimacro.scm[1.5.2.1], win32/win_ffi.scm[1.8.2.1]:
Eliminate non-hygienic macros.

2002-01-31 Chris Hanson <[email protected]>

* sos/macros.scm[1.12.2.2]:
Fix thinko with reversed arguments to IDENTIFIER=?.

* star-parser/Attic/synchk.scm[1.1.6.1],
star-parser/compile.scm[1.4.6.1], star-parser/load.scm[1.11.6.1],
star-parser/matcher.scm[1.28.2.1], star-parser/parser.pkg[1.17.2.1],
star-parser/parser.scm[1.31.2.1], star-parser/shared.scm[1.22.2.1]:
Update for new syntax engine.

* runtime/syntax-output.scm[1.1.2.8],
runtime/syntax-output.scm[1.1.2.7]:
Add back optimization that renames LAMBDA expressions bound by
top-level definitions.

2002-01-29 Chris Hanson <[email protected]>

* microcode/makegen/Makefile.in.in[1.17.2.3],
microcode/makegen/Makefile.in.in[1.20],
microcode/makegen/Makefile.in.in[1.17.2.2],
microcode/makegen/Makefile.in.in[1.19], microcode/utabmd.sh[1.1.2.2],
microcode/utabmd.sh[1.2], microcode/utabmd.sh[1.1.2.1],
microcode/utabmd.sh[1.1]:
Use SCHEME_COMPILER variable to allow end-user override.

* microcode/configure.in[11.13.2.2], microcode/configure.in[11.15]:
In socklen_t test, must include <sys/types.h> also.

* microcode/tterm.c[1.12.2.1], microcode/tterm.c[1.13]:
Undefine false and true prior to including <curses.h>, to work around
bug in recent versions of ncurses.

* microcode/confshared.h[11.1.2.2], microcode/confshared.h[11.3]:
Don't use <stdbool.h>; it is incompatible with older versions of
ncurses.

* microcode/configure.in[11.13.2.1], microcode/configure.in[11.14],
microcode/confshared.h[11.1.2.1], microcode/confshared.h[11.2]:
Fix problem: don't define true and false if <stdbool.h> exists,
because the GNU version of <stdbool.h> breaks in that case. Instead
just use <stdbool.h> to make the definitions.

* edwin/xterm.scm[1.68]:
Add support for cut/paste to "clipboard", which seems to be new standard.

* Makefile.in[1.19], Makefile.in[1.18.2.1], etc/compile.sh[1.2],
etc/compile.sh[1.1.2.1]:
Add shell script with environment variable that can be used to
override the default Scheme compiler.

* etc/compile.sh[1.1]:
file compile.sh was initially added on branch release-7-6.

2002-01-28 Chris Hanson <[email protected]>

* runtime/version.scm[14.205]:
Update release version to reflect that next release will be 7.7.0
rather than 7.6.1.

2002-01-27 Chris Hanson <[email protected]>

* win32/dibutils/makefile.msc[1.3.2.1],
win32/dibutils/makefile.msc[1.4],
win32/dibutils/makefile.wcc[1.3.2.1],
win32/dibutils/makefile.wcc[1.4]:
Fix typo.

* etc/optiondb.scm[1.8.2.1]:
Fix bug: package name for SOS was wrong.

* runtime/version.scm[14.202.2.1]:
Update version number for release.

2002-01-26 Chris Hanson <[email protected]>

* runtime/defstr.scm[14.37.2.5], runtime/runtime.pkg[14.406.2.9],
runtime/syntactic-closures.scm[1.1.2.13]:
Rename GENERATE-SYNTHETIC-IDENTIFIER to MAKE-SYNTHETIC-IDENTIFIER.

* runtime/syntactic-closures.scm[1.1.2.12]:
Don't elide syntactic closure when the form being closed is an
identifier, because the closure might be a synthetic identifier.

2002-01-22 Chris Hanson <[email protected]>

* etc/optiondb.scm[1.8.6.1], etc/optiondb.scm[1.9]:
Fix bug: package name for SOS was wrong.

* sos/class.scm[1.11.2.1], sos/instance.scm[1.13.2.1],
sos/macros.scm[1.12.2.1]:
Initial rewrite of macros to use syntactic closures. Code compiles
and a few simple expressions have been tested.

* runtime/runtime.pkg[14.406.2.8]:
Export PARSE-MIT-LAMBDA-LIST.

* runtime/syntactic-closures.scm[1.1.2.11]:
Change MAKE-SYNTACTIC-CLOSURE to avoid closing more things. This will
reduce consing and simplify debugging of macros.

* runtime/runtime.pkg[14.406.2.7],
runtime/syntactic-closures.scm[1.1.2.10]:
Delete unused definition of MAKE-SYNTACTIC-CLOSURE-LIST. Add new
procedure CLOSE-SYNTAX. Change STRIP-SYNTACTIC-CLOSURES; it doesn't
need to traverse vectors.

* runtime/syntax-check.scm[1.1.2.2]:
Allow arbitrary pattern-matching elements in SYNTAX-MATCH?.

2002-01-19 Chris Hanson <[email protected]>

* runtime/ed-ffi.scm[1.31.2.1]:
Change list to delete old files and add new ones.

* runtime/syntax-output.scm[1.1.2.6]:
Enhance OUTPUT/TOP-LEVEL-SEQUENCE to avoid making open blocks for
simple expressions.

* runtime/syntactic-closures.scm[1.1.2.9]:
Simplify structure of top-level entry points to syntax engine.

* edwin/bufwin.scm[1.309.6.2]:
Fix bug: BUFFER-WINDOW/SET-BUFFER! must not call SET-NEW-COORDINATES!
unless the window has a known size.

* edwin/clscon.scm[1.7.6.2], edwin/clscon.scm[1.7.6.1]:
Mak sure that structure-type names are in the numerical order.

2002-01-18 Chris Hanson <[email protected]>

* edwin/buffrm.scm[1.58.6.1], edwin/bufwin.scm[1.309.6.1],
edwin/clsmac.scm[1.7.2.2], edwin/comwin.scm[1.146.6.1],
edwin/edtfrm.scm[1.90.6.1], edwin/edwin.pkg[1.279.2.1],
edwin/modwin.scm[1.41.6.1], edwin/utlwin.scm[1.59.6.1],
edwin/window.scm[1.159.6.1], edwin/xform.scm[1.11.2.1]:
Implement WITH-INSTANCE-VARIABLES as a compiler item, using internal
features of the syntax engine. Rename => to ==> to avoid conflict
with => keyword used by COND; rename USUAL=> to USUAL==> for
consistency.

* runtime/defstr.scm[14.37.2.4]:
Fix thinko in NAMED option.

* runtime/runtime.pkg[14.406.2.6]:
Export ILL-FORMED-SYNTAX.

* runtime/syntax-rules.scm[1.1.2.2]:
Add declarations to prevent compiler warnings.

* edwin/clsmac.scm[1.7.2.1]:
Mostly rewrite this using new syntax. But WITH-INSTANCE-VARIABLES not
rewritten -- it is a terrible kludge and pretty hopeless.

* edwin/schmod.scm[1.58.2.1]:
Add indentation rules for new syntax.

* runtime/runtime.pkg[14.406.2.5],
runtime/syntactic-closures.scm[1.1.2.8],
runtime/syntax-output.scm[1.1.2.5]:
Export CALL-WITH-SYNTAX-ERROR-PROCEDURE, and generalize the argument
structure to the error procedure.

* runtime/runtime.pkg[14.406.2.4]:
Export SYNTAX-MATCH? for use in macros.

* runtime/make.scm[14.83.2.4], runtime/mit-syntax.scm[1.1.2.11],
runtime/syntactic-closures.scm[1.1.2.7],
runtime/syntax-transforms.scm[1.1.2.2]:
Fix runtime code generated for top-level macro transformers. These
were being stored in the environment as procedures when they were
supposed to be stored as expander items.

* compiler/base/macros.scm[4.22.2.3]:
Fix typo in DEFINE-EXPORT.

* runtime/mit-syntax.scm[1.1.2.10]:
Fix thinko in binding of syntactic keywords.

* runtime/unsyn.scm[14.27.2.1]:
Fix broken unsyntaxing of DEFINE-SYNTAX.

* compiler/base/macros.scm[4.22.2.2]:
Convert the PACKAGE macro to RSC format.

* compiler/base/constr.scm[1.3.6.1]:
Add USUAL-INTEGRATIONS declaration.

* runtime/mit-syntax.scm[1.1.2.9]:
Allow INTEGRATE-EXTERNAL declaration to take pathname objects as well
as strings.

2002-01-17 Chris Hanson <[email protected]>

* runtime/defstr.scm[14.37.2.3]:
Make sure that the ACCESS keyword is closed in the right environment.

* runtime/syntax-transforms.scm[1.1]:
file syntax-transforms.scm was initially added on branch hygienic-macros.

* runtime/make.scm[14.83.2.3], runtime/mit-syntax.scm[1.1.2.8],
runtime/runtime.pkg[14.406.2.3],
runtime/syntax-transforms.scm[1.1.2.1]:
Move the TRANSFORMER->EXPANDER procedures into a separate file that is
loaded early during the cold load. These are needed by any top-level
macro definitions in the runtime system.

* runtime/make.scm[14.83.2.2]:
Eliminate use of CASE in cold load. New syntaxer expands this into
calls to MEMV, which isn't available.

* runtime/mit-syntax.scm[1.1.2.7],
runtime/syntactic-closures.scm[1.1.2.6],
runtime/syntax-output.scm[1.1.2.4],
runtime/syntax-output.scm[1.1.2.3]:
Rework the handling of definitions, LAMBDA bodies, and LETREC. This
now emits code using open blocks and internal definitions, because the
compiler (and SF) expect it to be in that form.

* runtime/mit-syntax.scm[1.1.2.6],
runtime/syntactic-closures.scm[1.1.2.5]:
Fix harmless typo.

* runtime/syntax-output.scm[1.1.2.2]:
Fix thinko in generation of LETREC code.

* runtime/mit-syntax.scm[1.1.2.5],
runtime/syntactic-closures.scm[1.1.2.4]:
Rework the handling of LET-SYNTAX and LETREC-SYNTAX so that
definitions appearing in their bodies are defined in the enclosing
definition environment rather than internally.

* runtime/mit-syntax.scm[1.1.2.4]:
Allow INTEGRATE-EXTERNAL declaration to specify multiple files.

* runtime/mit-syntax.scm[1.1.2.3],
runtime/syntactic-closures.scm[1.1.2.3]:
Add delay to processing of declaration texts, so that they can contain
forward references to definitions.

2002-01-16 Chris Hanson <[email protected]>

* compiler/base/macros.scm[4.22.2.1],
compiler/machines/i386/compiler.pkg[1.27.2.1]:
Eliminate dependence of DEFINE-EXPORT on now-obsolete
PARSE-DEFINE-SYNTAX.

* runtime/mit-syntax.scm[1.1.2.2], runtime/runtime.pkg[14.406.2.2],
runtime/syntactic-closures.scm[1.1.2.2]:
Rework handling of bodies to prevent premature reference to internal
definitions. Add bootstrapping kludge that converts old-style macro
transformers into items on the fly. Implement "reversed"
syntactic-closure transformers.

* runtime/defstr.scm[14.37.2.2]:
Fix bugs: Slot default wasn't being closed right; type-name and
tag-expression were being reversed.

2002-01-15 Chris Hanson <[email protected]>

* microcode/cmpintmd/i386.h[1.34.2.1]:
Eliminate unneeded declaration of `ia32_cpuid_needed'.

* sf/make.scm[4.40.2.1], sf/sf.pkg[4.16.2.1], sf/toplev.scm[4.22.2.1]:
Changes needed to support new syntax engine.

* runtime/syntactic-closures.scm[1.1]:
file syntactic-closures.scm was initially added on branch hygienic-macros.

* runtime/syntax-check.scm[1.1]:
file syntax-check.scm was initially added on branch hygienic-macros.

* runtime/syntax-output.scm[1.1]:
file syntax-output.scm was initially added on branch hygienic-macros.

* runtime/syntax-rules.scm[1.1]:
file syntax-rules.scm was initially added on branch hygienic-macros.

* runtime/Attic/illdef.scm[1.5.2.1], runtime/Attic/macros.scm[1.6.2.1],
runtime/Attic/syntab.scm[14.9.2.1],
runtime/Attic/syntax.scm[14.52.2.1], runtime/defstr.scm[14.37.2.1],
runtime/make.scm[14.83.2.1], runtime/mit-syntax.scm[1.1.2.1],
runtime/runtime.pkg[14.406.2.1],
runtime/syntactic-closures.scm[1.1.2.1],
runtime/syntax-check.scm[1.1.2.1],
runtime/syntax-output.scm[1.1.2.1],
runtime/syntax-rules.scm[1.1.2.1], runtime/version.scm[14.204.2.1]:
Initial integration of new syntax engine. Complete rewrite of
DEFINE-STRUCTURE expander.

* runtime/mit-syntax.scm[1.1]:
file mit-syntax.scm was initially added on branch hygienic-macros.

2002-01-14 Chris Hanson <[email protected]>

* microcode/makegen/Makefile.in.in[1.17.2.1]:
Fix default target; it wasn't including everything.

* microcode/cmpauxmd/i386.m4[1.50.6.1]:
Add explicit cache synchronization support to work around a bug in the
Athlon. Remove support for DOS and HACK_SEGMENT_REGS.

* compiler/base/make.scm[4.115.2.1],
compiler/machines/i386/dassm3.scm[1.6.2.1],
compiler/machines/i386/instr1.scm[1.11.2.1],
compiler/machines/i386/lapgen.scm[1.27.2.1],
compiler/machines/i386/rules3.scm[1.34.2.1],
microcode/cmpintmd/i386.h[1.32.2.1], microcode/version.h[11.181.2.1]:
Add explicit cache synchronization support to work around a bug in the
Athlon.

2002-01-12 Chris Hanson <[email protected]>

* imail/todo.txt[1.136]:
Add note about Hal's suggestion to overload o to subsume M-o.

* runtime/defstr.scm[14.37], runtime/make.scm[14.83],
runtime/record.scm[1.29], runtime/runtime.pkg[14.406]:
Move runtime support for DEFINE-STRUCTURE into "record.scm", in order
to simplify the boot sequence. This allows "defstr.scm" to move late
into the boot sequence and to use the record abstraction without
complicated tricks.

2002-01-09 Chris Hanson <[email protected]>

* sf/sf.pkg[4.16], sf/toplev.scm[4.22]:
Change remaining "syntax-table" references to "environment". Delete
unused procedure SF/SET-FILE-SYNTAX-TABLE!.

2002-01-08 Chris Hanson <[email protected]>

* runtime/urtrap.scm[14.13]:
Fix naming issue right (?).

* runtime/urtrap.scm[14.12]:
If reference trap has no name, print its number.

2002-01-07 Chris Hanson <[email protected]>

* runtime/uenvir.scm[14.53]:
Must do reference-trap mapping when looking things up in compiled-code
environments.

* edwin/debug.scm[1.62]:
Don't ever list bindings for packages.

* edwin/debug.scm[1.61]:
Fix problem: only one of the places that prints bindings knew about
syntactic keywords.

* runtime/urtrap.scm[14.11]:
Change representation of reference trap to show kind name rather than
number.

* edwin/debug.scm[1.60]:
Use new environment-abstraction design to clean up debugger access to
environments.

* runtime/error.scm[14.56], runtime/runtime.pkg[14.405],
runtime/uenvir.scm[14.52]:
Redesign way that macros are integrated into environments. Syntactic
keywords are now considered bound, but ordinary variable-reference
operations signal errors on those bindings; but each of the definition
operations can be used to modify either kind of binding.

New procedure ENVIRONMENT-DEFINABLE? can be used to determine if a
definition is allowed on a particular environment; currently it is
false on compiled-code environments.

New procedures ENVIRONMENT-REFERENCE-TYPE and ENVIRONMENT-SAFE-LOOKUP
provide very flexible mechanisms for determining what is contained in
an environment or binding without generating errors.

2002-01-05 Chris Hanson <[email protected]>

* runtime/dbgutl.scm[14.21]:
Handle case where binding is a syntactic keyword.

* runtime/xeval.scm[1.9], runtime/xeval.scm[1.8]:
Rename ENVIRONMENT-WHICH-BINDS to ENVIRONMENT-THAT-BINDS.

* runtime/unpars.scm[14.50]:
Don't unparse environments specially.

2002-01-04 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.404], runtime/uenvir.scm[14.51]:
New procedure GUARANTEE-ENVIRONMENT.

2001-12-29 Chris Hanson <[email protected]>

* runtime/Attic/syntax.scm[14.52]:
Oops... last revision deleted a little too much.

2001-12-24 Chris Hanson <[email protected]>

* runtime/Attic/syntax.scm[14.51]:
Eliminate deep-binding FLUID-LET.

* compiler/etc/comcmp.scm[1.10], runtime/Attic/syntax.scm[14.50],
runtime/unsyn.scm[14.27]:
Eliminate references to UNASSIGNED?.

2001-12-23 Chris Hanson <[email protected]>

* microcode/lookprm.c[1.19], microcode/lookprm.c[1.18]:
Fix missing string line terminators.

* 6001/arith.scm[1.8], compiler/back/asmmac.scm[1.10],
compiler/back/lapgn3.scm[4.14], compiler/base/crsend.scm[1.12],
compiler/base/lvalue.scm[4.24], compiler/base/macros.scm[4.22],
compiler/base/scode.scm[4.13], compiler/base/utils.scm[4.23],
compiler/etc/comcmp.scm[1.9], compiler/fggen/canon.scm[1.20],
compiler/fggen/fggen.scm[4.35],
compiler/machines/alpha/inerly.scm[1.6],
compiler/machines/alpha/insmac.scm[1.4],
compiler/machines/bobcat/inerly.scm[1.11],
compiler/machines/bobcat/insmac.scm[1.129],
compiler/machines/i386/assmd.scm[1.5],
compiler/machines/i386/dassm1.scm[1.12],
compiler/machines/i386/dassm2.scm[1.11],
compiler/machines/i386/dassm3.scm[1.9],
compiler/machines/i386/inerly.scm[1.7],
compiler/machines/i386/insmac.scm[1.13],
compiler/machines/i386/instr1.scm[1.15],
compiler/machines/i386/instr2.scm[1.9],
compiler/machines/i386/instrf.scm[1.17],
compiler/machines/i386/lapgen.scm[1.30],
compiler/machines/i386/rules3.scm[1.37],
compiler/machines/i386/rulfix.scm[1.33],
compiler/machines/i386/rulflo.scm[1.24],
compiler/machines/mips/inerly.scm[1.6],
compiler/machines/mips/insmac.scm[1.5],
compiler/machines/sparc/inerly.scm[1.6],
compiler/machines/sparc/insmac.scm[1.4],
compiler/machines/spectrum/inerly.scm[1.6],
compiler/machines/spectrum/insmac.scm[1.5],
compiler/machines/spectrum/instr2.scm[1.10],
compiler/machines/vax/dsyn.scm[1.11],
compiler/machines/vax/inerly.scm[1.10],
compiler/machines/vax/insmac.scm[1.15],
compiler/machines/vax/instr1.scm[1.9],
compiler/machines/vax/instr2.scm[1.9],
compiler/machines/vax/instr3.scm[1.13],
compiler/rtlbase/rtlreg.scm[4.8], compiler/rtlbase/valclass.scm[1.4],
edwin/buffer.scm[1.184], edwin/calias.scm[1.23],
edwin/clsmac.scm[1.7], edwin/dosproc.scm[1.7],
edwin/macros.scm[1.70], edwin/regexp.scm[1.77],
edwin/search.scm[1.153], edwin/syntax.scm[1.88],
edwin/tterm.scm[1.32], edwin/utils.scm[1.50], edwin/xcom.scm[1.19],
microcode/os2pm.scm[1.10], microcode/utabmd.scm[9.82],
runtime/apply.scm[1.4], runtime/arith.scm[1.48],
runtime/debug.scm[14.42], runtime/defstr.scm[14.36],
runtime/error.scm[14.55], runtime/graphics.scm[1.19],
runtime/infstr.scm[1.13], runtime/list.scm[14.29],
runtime/make.scm[14.82], runtime/os2winp.scm[1.17],
runtime/parse.scm[14.35], runtime/parser-buffer.scm[1.2],
runtime/port.scm[1.21], runtime/recslot.scm[1.6],
runtime/rgxcmp.scm[1.118], runtime/runtime.pkg[14.403],
runtime/scomb.scm[14.18], runtime/starbase.scm[1.15],
runtime/string.scm[14.46], runtime/sysmac.scm[14.7],
runtime/vector.scm[14.19], sf/object.scm[4.12], sos/class.scm[1.11],
sos/instance.scm[1.13], sos/load.scm[1.10], sos/macros.scm[1.12],
sos/sos.pkg[1.11], star-parser/matcher.scm[1.28],
star-parser/parser.pkg[1.17], star-parser/parser.scm[1.31],
swat/scheme/control-floating-errors.scm[1.3],
swat/scheme/load.scm[1.7], swat/scheme/mit-xhooks.scm[1.4],
swat/scheme/scc-macros.scm[1.3], swat/scheme/uitk-macros.scm[1.2],
wabbit/test-wabbit.scm[1.3], win32/dib.scm[1.5],
win32/ffimacro.scm[1.5], win32/make.scm[1.9], win32/win32.pkg[1.15],
win32/win32.sf[1.8], win32/win_ffi.scm[1.8], win32/wingdi.scm[1.3],
win32/winnt.scm[1.3], win32/winuser.scm[1.3], win32/wt_user.scm[1.6]:
Eliminate all references to SYNTAX-TABLE/DEFINE. Wrap all macros with
new procedure NON-HYGIENIC-MACRO-TRANSFORMER; this will serve as a
marker for identifying macros that need to be rewritten.

2001-12-22 Chris Hanson <[email protected]>

* compiler/base/macros.scm[4.21],
compiler/machines/i386/compiler.pkg[1.27],
compiler/machines/i386/compiler.sf[1.18], edwin/edwin.ldr[1.73],
edwin/macros.scm[1.69]:
Store macro definitions in environments rather than in syntax tables.

* runtime/Attic/syntax.scm[14.49], runtime/runtime.pkg[14.402],
runtime/unsyn.scm[14.26], runtime/urtrap.scm[14.10]:
Fix problem: DEFINE-SYNTAX was expanding into a fixed reference trap
in which the SCode lambda was inserted; it must instead expand into an
expression that evaluates the lambda and wraps it in a reference trap.

2001-12-21 Chris Hanson <[email protected]>

* sf/toplev.scm[4.21]:
Eliminate reference to SYNTAX-TABLE?.

* compiler/base/toplev.scm[4.62]:
Eliminate reference to GUARANTEE-SYNTAX-TABLE.

* sf/toplev.scm[4.20]:
Eliminate references to MAKE-SYNTAX-TABLE.

* compiler/machines/vax/dsyn.scm[1.10], edwin/clsmac.scm[1.6],
edwin/edwin.pkg[1.279], edwin/macros.scm[1.68],
runtime/Attic/macros.scm[1.6], runtime/Attic/syntab.scm[14.9],
runtime/Attic/syntax.scm[14.48], runtime/defstr.scm[14.35],
runtime/make.scm[14.81], runtime/make.scm[14.80],
runtime/runtime.pkg[14.401], runtime/runtime.pkg[14.400],
runtime/sysmac.scm[14.6], runtime/uenvir.scm[14.50],
runtime/unsyn.scm[14.25], runtime/urtrap.scm[14.9],
sf/pardec.scm[4.14], sf/sf.pkg[4.15]:
Store macro definitions in environments rather than in syntax tables.

* microcode/lookup.c[9.68]:
Fix bug: looking up a macro returns the trap, not the transformer.

* runtime/Attic/syntax.scm[14.47], runtime/make.scm[14.79],
runtime/runtime.pkg[14.399], runtime/uenvir.scm[14.49]:
Change DEFINE-SYNTAX so that it emits code to define the macro at run
time when written at top level.

* microcode/errors.h[9.44], microcode/lookprm.c[1.17],
microcode/lookup.c[9.67], microcode/sdata.h[9.39],
microcode/trap.h[9.49], microcode/utabmd.scm[9.81],
microcode/version.h[11.183], runtime/error.scm[14.54],
runtime/runtime.pkg[14.398], runtime/uenvir.scm[14.48],
runtime/uerror.scm[14.50], runtime/urtrap.scm[14.8]:
Implement support for storing macro transformers in environments.

* runtime/make.scm[14.78], runtime/runtime.pkg[14.397]:
Fix problem: this file was being syntaxed in the (RUNTIME) package but
loaded into the () package; it needed on the macros in (RUNTIME).
Also add this file to the package description, so that its bindings
are visible.

* runtime/global.scm[14.57]:
Fix comment.

2001-12-20 Chris Hanson <[email protected]>

* 6001/arith.scm[1.7], compiler/back/lapgn3.scm[4.13],
compiler/base/crsend.scm[1.11], compiler/base/lvalue.scm[4.23],
compiler/base/scode.scm[4.12], compiler/base/utils.scm[4.22],
compiler/fggen/canon.scm[1.19], compiler/fggen/fggen.scm[4.34],
compiler/machines/C/lapgen.scm[1.13],
compiler/machines/C/rules3.scm[1.10],
compiler/machines/C/rulfix.scm[1.4],
compiler/machines/C/rulflo.scm[1.6],
compiler/machines/alpha/assmd.scm[1.3],
compiler/machines/alpha/dassm1.scm[1.3],
compiler/machines/alpha/dassm2.scm[1.3],
compiler/machines/alpha/instr1.scm[1.5],
compiler/machines/alpha/instr2.scm[1.3],
compiler/machines/alpha/instr3.scm[1.3],
compiler/machines/alpha/lapgen.scm[1.8],
compiler/machines/alpha/rules3.scm[1.9],
compiler/machines/alpha/rulflo.scm[1.5],
compiler/machines/bobcat/assmd.scm[1.38],
compiler/machines/bobcat/dassm1.scm[4.21],
compiler/machines/bobcat/dassm2.scm[4.24],
compiler/machines/bobcat/flinstr1.scm[1.3],
compiler/machines/bobcat/flinstr2.scm[1.3],
compiler/machines/bobcat/instr2.scm[1.20],
compiler/machines/bobcat/instr3.scm[1.19],
compiler/machines/bobcat/instr4.scm[1.5],
compiler/machines/bobcat/lapgen.scm[4.52],
compiler/machines/bobcat/machin.scm[4.33],
compiler/machines/bobcat/rules3.scm[4.42],
compiler/machines/i386/assmd.scm[1.4],
compiler/machines/i386/dassm1.scm[1.11],
compiler/machines/i386/dassm2.scm[1.10],
compiler/machines/i386/dassm3.scm[1.8],
compiler/machines/i386/instr1.scm[1.14],
compiler/machines/i386/instr2.scm[1.8],
compiler/machines/i386/instrf.scm[1.16],
compiler/machines/i386/lapgen.scm[1.29],
compiler/machines/i386/rules3.scm[1.36],
compiler/machines/i386/rulfix.scm[1.32],
compiler/machines/i386/rulflo.scm[1.23],
compiler/machines/mips/assmd.scm[1.4],
compiler/machines/mips/dassm1.scm[1.6],
compiler/machines/mips/dassm2.scm[1.6],
compiler/machines/mips/instr1.scm[1.8],
compiler/machines/mips/instr2a.scm[1.6],
compiler/machines/mips/instr2b.scm[1.5],
compiler/machines/mips/instr3.scm[1.4],
compiler/machines/mips/lapgen.scm[1.17],
compiler/machines/mips/mips.scm[1.3],
compiler/machines/mips/rules3.scm[1.19],
compiler/machines/mips/rulflo.scm[1.9],
compiler/machines/sparc/assmd.scm[1.3],
compiler/machines/sparc/instr1.scm[1.3],
compiler/machines/sparc/instr2a.scm[1.3],
compiler/machines/sparc/instr2b.scm[1.3],
compiler/machines/sparc/instr3.scm[1.3],
compiler/machines/sparc/lapgen.scm[1.4],
compiler/machines/sparc/rules3.scm[1.3],
compiler/machines/sparc/rulflo.scm[1.3],
compiler/machines/spectrum/assmd.scm[1.32],
compiler/machines/spectrum/dassm1.scm[4.21],
compiler/machines/spectrum/dassm2.scm[4.22],
compiler/machines/spectrum/instr1.scm[1.5],
compiler/machines/spectrum/instr2.scm[1.9],
compiler/machines/spectrum/instr3.scm[1.4],
compiler/machines/spectrum/lapgen.scm[4.49],
compiler/machines/spectrum/rules3.scm[4.43],
compiler/machines/spectrum/rulfix.scm[4.49],
compiler/machines/spectrum/rulflo.scm[4.41],
compiler/machines/vax/assmd.scm[4.8],
compiler/machines/vax/dassm1.scm[4.8],
compiler/machines/vax/dassm2.scm[4.14],
compiler/machines/vax/instr2.scm[1.8],
compiler/machines/vax/instr3.scm[1.12],
compiler/machines/vax/lapgen.scm[4.17],
compiler/machines/vax/rules3.scm[4.13],
compiler/machines/vax/rulfix.scm[1.7],
compiler/rtlbase/rtlreg.scm[4.7], edwin/buffer.scm[1.183],
edwin/calias.scm[1.22], edwin/dosproc.scm[1.6],
edwin/schmod.scm[1.58], edwin/search.scm[1.152],
edwin/tterm.scm[1.31], runtime/Attic/syntax.scm[14.46],
runtime/apply.scm[1.3], runtime/arith.scm[1.47],
runtime/graphics.scm[1.18], runtime/infstr.scm[1.12],
runtime/list.scm[14.28], runtime/scomb.scm[14.17],
runtime/starbase.scm[1.14], runtime/vector.scm[14.18],
sf/object.scm[4.11], sos/class.scm[1.10],
swat/scheme/mit-xhooks.scm[1.3], wabbit/test-wabbit.scm[1.2]:
Eliminate MACRO special form.

* compiler/base/utils.scm[4.21], compiler/etc/comcmp.scm[1.8],
compiler/machines/i386/instr1.scm[1.13],
compiler/machines/i386/instr2.scm[1.7],
compiler/machines/i386/instrf.scm[1.15],
compiler/machines/spectrum/instr2.scm[1.8],
compiler/machines/vax/instr1.scm[1.8],
compiler/machines/vax/instr2.scm[1.7],
compiler/machines/vax/instr3.scm[1.11], edwin/regexp.scm[1.76],
edwin/search.scm[1.151], edwin/syntax.scm[1.87],
edwin/utils.scm[1.49], microcode/os2pm.scm[1.9],
microcode/utabmd.scm[9.80], runtime/Attic/syntax.scm[14.45],
runtime/arith.scm[1.46], runtime/debug.scm[14.41],
runtime/error.scm[14.53], runtime/os2winp.scm[1.16],
runtime/parse.scm[14.34], runtime/recslot.scm[1.5],
runtime/rgxcmp.scm[1.117], sos/instance.scm[1.12],
star-parser/matcher.scm[1.27], star-parser/parser.scm[1.30],
swat/scheme/control-floating-errors.scm[1.2], win32/win_ffi.scm[1.7]:
Eliminate DEFINE-MACRO special form.

* runtime/Attic/syntax.scm[14.44]:
Eliminate definition of SCODE-QUOTE.

* runtime/unsyn.scm[14.24]:
Fix over-long lines.

* compiler/back/syntax.scm[1.28], runtime/make.scm[14.77],
runtime/make.scm[14.76], sf/usiexp.scm[4.41]:
Eliminate references to THE-ENVIRONMENT.

* compiler/etc/disload.scm[1.11], compiler/fggen/canon.scm[1.18],
edwin/schmod.scm[1.57], runtime/Attic/macros.scm[1.5],
runtime/Attic/syntax.scm[14.43], runtime/infutl.scm[1.66],
runtime/runtime.pkg[14.396], runtime/unsyn.scm[14.23],
sf/gconst.scm[4.27]:
Eliminate references to MAKE-ENVIRONMENT.

* 6001/make.scm[15.33], compiler/base/scode.scm[4.11],
compiler/fggen/canon.scm[1.17], compiler/fggen/fggen.scm[4.33],
compiler/rtlopt/rdebug.scm[1.4], cref/anfile.scm[1.7],
edwin/artdebug.scm[1.30], edwin/debug.scm[1.59],
edwin/kmacro.scm[1.44], edwin/schmod.scm[1.56],
imail/fake-env.scm[1.5], pcsample/load.scm[1.6],
runtime/Attic/illdef.scm[1.5], runtime/Attic/syntax.scm[14.42],
runtime/codwlk.scm[14.4], runtime/pp.scm[14.43],
runtime/prgcop.scm[1.7], runtime/runtime.pkg[14.395],
runtime/runtime.pkg[14.394], runtime/scode.scm[14.17],
runtime/thread.scm[1.35], runtime/unsyn.scm[14.22],
runtime/xeval.scm[1.7], sf/cgen.scm[4.5], sf/chtype.scm[4.4],
sf/copy.scm[4.6], sf/free.scm[4.4], sf/object.scm[4.10],
sf/sf.sf[4.11], sf/subst.scm[4.17], sf/xform.scm[4.11],
sos/macros.scm[1.11], star-parser/shared.scm[1.22],
swat/scheme/load.scm[1.6], swat/scheme/mit-xhooks.scm[1.2],
win32/wt_user.scm[1.5]:
Eliminate IN-PACKAGE and USING-SYNTAX special forms.

* runtime/Attic/syntab.scm[14.8], runtime/Attic/syntax.scm[14.41],
runtime/runtime.pkg[14.393], sicp/studen.scm[1.11]:
Eliminate references to SYNTAX-TABLE-DEFINE and SYNTAX-TABLE-REF.

* rcs/compile.scm[1.4], runtime/Attic/macros.scm[1.4],
runtime/Attic/syntax.scm[14.40], runtime/defstr.scm[14.34],
runtime/runtime.pkg[14.392], sf/pardec.scm[4.13],
sf/toplev.scm[4.19], sicp/strmac.scm[1.3], sos/load.scm[1.9],
star-parser/ed-ffi.scm[1.5], star-parser/matcher.scm[1.26],
star-parser/parser.pkg[1.16], star-parser/parser.scm[1.29],
swat/scheme/scc-macros.scm[1.2], win32/ffimacro.scm[1.4],
xml/ed-ffi.scm[1.4], xml/xml.pkg[1.9]:
Eliminate references to SYSTEM-GLOBAL-SYNTAX-TABLE.

* compiler/machines/i386/compiler.sf[1.17]:
Fix bug: compiler was being syntaxed in wrong environment.

* compiler/base/macros.scm[4.20]:
Fix missing bindings for UCODE-PRIMITIVE and UCODE-TYPE.

* compiler/base/macros.scm[4.19], compiler/base/macros.scm[4.18]:
Fix problem caused by SCode-manipulating macro being closed in
compiler environment.

* cref/cref.sf[1.15]:
Fix dangling reference to SF/SET-DEFAULT-SYNTAX-TABLE!.

* 6001/6001.pkg[1.14], 6001/6001.sf[1.13], 6001/pic-ops.scm[1.6],
6001/pic-read.scm[1.6], 6001/pic-reco.scm[1.8],
6001/picture.scm[1.30], sos/instance.scm[1.11],
win32/win32.pkg[1.14]:
Eliminate references to SYNTAX-TABLE/SYSTEM-INTERNAL.

* compiler/base/switch.scm[4.26],
compiler/machines/C/compiler.pkg[1.12],
compiler/machines/C/decls.scm[1.6],
compiler/machines/alpha/compiler.pkg[1.15],
compiler/machines/alpha/compiler.sf[1.10],
compiler/machines/alpha/decls.scm[1.8],
compiler/machines/bobcat/compiler.pkg[1.52],
compiler/machines/bobcat/compiler.sf[1.22],
compiler/machines/bobcat/decls.scm[4.39],
compiler/machines/i386/compiler.pkg[1.26],
compiler/machines/i386/compiler.sf[1.16],
compiler/machines/i386/decls.scm[1.11],
compiler/machines/mips/compiler.pkg[1.22],
compiler/machines/mips/compiler.sf-big[1.12],
compiler/machines/mips/compiler.sf-little[1.12],
compiler/machines/mips/decls.scm[1.12],
compiler/machines/sparc/decls.scm[1.6],
compiler/machines/spectrum/compiler.pkg[1.52],
compiler/machines/spectrum/compiler.sf[1.22],
compiler/machines/spectrum/decls.scm[4.37],
compiler/machines/vax/compiler.pkg[1.24],
compiler/machines/vax/compiler.sf[1.13],
compiler/machines/vax/decls.scm[4.15]:
Eliminate COMPILER:ENABLE-EXPANSION-DECLARATIONS? and the associated
early-expansion macros. This hasn't been used in a while and there's
no clear way to make it work when environments and syntax tables are
unified.

* compiler/back/syerly.scm[1.12],
compiler/machines/alpha/inerly.scm[1.5],
compiler/machines/bobcat/inerly.scm[1.10],
compiler/machines/i386/inerly.scm[1.6],
compiler/machines/mips/inerly.scm[1.5],
compiler/machines/sparc/inerly.scm[1.5],
compiler/machines/spectrum/inerly.scm[1.5],
compiler/machines/vax/inerly.scm[1.9]:
Remove unused definitions of DEFINE-EARLY-TRANSFORMER. Move bindings
for EARLY-TRANSFORMERS and EARLY-INSTRUCTIONS to "back/syerly.scm".

* compiler/machines/alpha/inerly.scm[1.4],
compiler/machines/i386/inerly.scm[1.5],
compiler/machines/mips/inerly.scm[1.4],
compiler/machines/sparc/inerly.scm[1.4],
compiler/machines/spectrum/inerly.scm[1.4]:
Remove unused EQ-SUBSET? definitions.

2001-12-19 Chris Hanson <[email protected]>

* compiler/back/asmmac.scm[1.9], compiler/base/macros.scm[4.17],
compiler/machines/C/compiler.pkg[1.11],
compiler/machines/C/compiler.sf[1.9],
compiler/machines/C/decls.scm[1.5],
compiler/machines/alpha/compiler.pkg[1.14],
compiler/machines/alpha/compiler.sf[1.9],
compiler/machines/alpha/decls.scm[1.7],
compiler/machines/alpha/inerly.scm[1.3],
compiler/machines/alpha/insmac.scm[1.3],
compiler/machines/alpha/lapgen.scm[1.7],
compiler/machines/alpha/rules1.scm[1.4],
compiler/machines/alpha/rules2.scm[1.3],
compiler/machines/alpha/rules3.scm[1.8],
compiler/machines/alpha/rules4.scm[1.4],
compiler/machines/alpha/rulfix.scm[1.5],
compiler/machines/alpha/rulflo.scm[1.4],
compiler/machines/bobcat/compiler.pkg[1.51],
compiler/machines/bobcat/compiler.sf[1.21],
compiler/machines/bobcat/decls.scm[4.38],
compiler/machines/bobcat/inerly.scm[1.9],
compiler/machines/bobcat/insmac.scm[1.128],
compiler/machines/i386/compiler.pkg[1.25],
compiler/machines/i386/compiler.sf[1.15],
compiler/machines/i386/decls.scm[1.10],
compiler/machines/i386/inerly.scm[1.4],
compiler/machines/i386/insmac.scm[1.12],
compiler/machines/mips/compiler.pkg[1.21],
compiler/machines/mips/compiler.sf-big[1.11],
compiler/machines/mips/compiler.sf-little[1.11],
compiler/machines/mips/decls.scm[1.11],
compiler/machines/mips/inerly.scm[1.3],
compiler/machines/mips/insmac.scm[1.4],
compiler/machines/sparc/decls.scm[1.5],
compiler/machines/sparc/inerly.scm[1.3],
compiler/machines/sparc/insmac.scm[1.3],
compiler/machines/spectrum/compiler.pkg[1.51],
compiler/machines/spectrum/compiler.sf[1.21],
compiler/machines/spectrum/decls.scm[4.36],
compiler/machines/spectrum/inerly.scm[1.3],
compiler/machines/spectrum/insmac.scm[1.4],
compiler/machines/vax/compiler.pkg[1.23],
compiler/machines/vax/compiler.sf[1.12],
compiler/machines/vax/decls.scm[4.14],
compiler/machines/vax/dsyn.scm[1.9],
compiler/machines/vax/inerly.scm[1.8],
compiler/machines/vax/insmac.scm[1.14]:
Remove explicit references to syntax tables.

* 6001/6001.sf[1.12], pcsample/pcs.sf[1.3], runtime/option.scm[14.39],
runtime/runtime.pkg[14.391], runtime/runtime.sf[14.17],
runtime/sysmac.scm[14.5], sf/sf.sf[4.10], sos/compile.scm[1.5],
sos/ed-ffi.scm[1.3], sos/instance.scm[1.10], sos/sos.pkg[1.10],
swat/scheme/other/unhash-testing.scm[1.2], swat/scheme/swat.cbf[1.2],
swat/scheme/swat.sf[1.4], wabbit/wabbit.sf[1.4], win32/win32.sf[1.7],
win32/win32.sf[1.6]:
Eliminate references to SYNTAX-TABLE/SYSTEM-INTERNAL.

* microcode/cmpauxmd/i386.m4[1.56], microcode/cmpintmd/i386.h[1.34]:
Change cache serialization to do condition testing once when Scheme is
started rather each time a closure is created.

* sf/sf.pkg[4.14], sf/toplev.scm[4.18]:
Delete SF/SET-DEFAULT-SYNTAX-TABLE!.

* 6001/nodefs.scm[1.12], edwin/artdebug.scm[1.29],
edwin/comred.scm[1.123], edwin/debug.scm[1.58],
edwin/editor.scm[1.253], edwin/evlcom.scm[1.65],
edwin/filcom.scm[1.223], edwin/intmod.scm[1.115],
edwin/schmod.scm[1.55], runtime/Attic/syntax.scm[14.39],
runtime/error.scm[14.52], runtime/load.scm[14.60],
runtime/packag.scm[14.39], runtime/rep.scm[14.57],
runtime/runtime.pkg[14.390], runtime/usrint.scm[1.17]:
Excise syntax tables from the REPL.

* runtime/uenvir.scm[14.47]:
Reimplement EXTEND-INTERPRETER-ENVIRONMENT and
MAKE-NULL-INTERPRETER-ENVIRONMENT so that they don't use EVAL, and so
that they take optional arguments specifying bindings to be defined in
the newly-allocated environment.

* runtime/Attic/syntax.scm[14.38], runtime/Attic/syntax.scm[14.37],
runtime/global.scm[14.56], runtime/runtime.pkg[14.389],
sf/sf.pkg[4.13]:
Move SYNTAXER/DEFAULT-ENVIRONMENT into the syntaxer.

* edwin/autold.scm[1.62]:
Use default syntax table for LOAD.

* cref/redpkg.scm[1.25]:
Change order of names in renaming export declaration; now first name
is always the destination and second is always the source.

* compiler/etc/disload.scm[1.10], edwin/autold.scm[1.61],
edwin/debug.scm[1.57], edwin/evlcom.scm[1.64],
edwin/macros.scm[1.67], runtime/unpars.scm[14.49],
sf/usicon.scm[4.5], sos/load.scm[1.8], swat/scheme/load.scm[1.5],
xml/compile.scm[1.8]:
Change references to LOCAL-ASSIGNMENT and LEXICAL-* to instead use
procedures in the environment abstraction.

* edwin/edwin.pkg[1.278], edwin/rename.scm[1.8], edwin/winren.scm[1.6]:
Rename references to SCode variable abstraction. Eliminate special
hack in "rename.scm"; instead use new packaging feature to link
different names.

* edwin/dired.scm[1.190]:
Eliminate unnecessary use of LEXICAL-UNREFERENCEABLE?.

* edwin/clsmac.scm[1.5], edwin/xform.scm[1.11]:
Rename references to SCode variable abstraction.

* runtime/uerror.scm[14.49]:
Use ENVIRONMENT-DEFINE in place of LOCAL-ASSIGNMENT.

* runtime/Attic/syntab.scm[14.7], runtime/Attic/syntax.scm[14.36],
runtime/runtime.pkg[14.388], runtime/uenvir.scm[14.46]:
Implement ENVIRONMENT-DEFINE and ENVIRONMENT-ASSIGNED?. Change
ENVIRONMENT-LOOKUP to signal an error if the variable is unassigned.
Move ENVIRONMENT-SYNTAX-TABLE and SET-ENVIRONMENT-SYNTAX-TABLE! into
the syntax-table abstraction.

2001-12-18 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.277], edwin/xform.scm[1.10]:
Rename references to SCode variable abstraction.

* runtime/load.scm[14.59]:
Allow syntax table to be explicitly defaulted.

* edwin/autold.scm[1.60], edwin/autold.scm[1.59]:
Use default syntax table for LOAD.

* edwin/c-mode.scm[1.60], edwin/htmlmode.scm[1.5],
edwin/javamode.scm[1.11], edwin/midas.scm[1.22],
edwin/pasmod.scm[1.51], edwin/schmod.scm[1.54],
edwin/syntax.scm[1.86], edwin/texcom.scm[1.46],
edwin/tximod.scm[1.25], edwin/verilog.scm[1.9], edwin/vhdl.scm[1.9]:
Use MAKE-CHAR-SYNTAX-TABLE rather than MAKE-SYNTAX-TABLE.

* edwin/edwin.sf[1.29]:
Eliminate reference to SYNTAX-TABLE/SYSTEM-INTERNAL.

* runtime/sysmac.scm[14.4]:
Attach syntax table to (RUNTIME) environment.

* imail/imail.pkg[1.95]:
(RUNTIME URL) package must inherit from (RUNTIME).

* edwin/autold.scm[1.58], edwin/clsmac.scm[1.4], edwin/decls.scm[1.71],
edwin/dosshell.scm[1.5], edwin/ed-ffi.scm[1.52],
edwin/edwin.pkg[1.276], edwin/edwin.sf[1.28],
edwin/filcom.scm[1.222], edwin/fileio.scm[1.156],
edwin/macros.scm[1.66]:
Eliminate references to EDWIN-SYNTAX-TABLE and CLASS-SYNTAX-TABLE.

* imail/compile.scm[1.16], imail/ed-ffi.scm[1.18]:
Eliminate references to syntax tables.

* runtime/load.scm[14.58]:
Default syntax table must be ENVIRONMENT-SYNTAX-TABLE of load
environment.

* edwin/intmod.scm[1.114], runtime/runtime.pkg[14.387],
runtime/uenvir.scm[14.45]:
Rename EXTEND-IC-ENVIRONMENT to EXTEND-INTERPRETER-ENVIRONMENT.

* runtime/uenvir.scm[14.44]:
Don't generate syntax tables automatically in EXTEND-IC-ENVIRONMENT.

* runtime/Attic/syntab.scm[14.6]:
Extend syntax-table abstraction so that it works on environments as
well as syntax tables.

* compiler/base/toplev.scm[4.61], runtime/Attic/syntax.scm[14.35]:
Use GUARANTEE-SYNTAX-TABLE.

* runtime/urtrap.scm[14.7]:
Create procedures to generate unassigned and unbound objects.

* runtime/symbol.scm[1.7]:
Replace magic code by reference to MAKE-UNMAPPED-UNBOUND-REFERENCE-TRAP.

* runtime/packag.scm[14.38], runtime/runtime.pkg[14.386]:
Create procedure to generate unassigned objects.

* runtime/packag.scm[14.37]:
Guarantee that source binding of an import is defined. Source binding
of an export is always defined by the package description.

* cref/redpkg.scm[1.24]:
Don't ever mark the source binding of a link as new. This was an
attempt to work around problems with the linker, but the problem is in
the linker and not here; the linker should automatically generate the
source binding if it is missing.

* runtime/Attic/syntax.scm[14.34], runtime/bitstr.scm[14.4],
runtime/blowfish.scm[1.24], runtime/boole.scm[14.4],
runtime/boot.scm[14.13], runtime/ed-ffi.scm[1.31],
runtime/equals.scm[14.9], runtime/fixart.scm[1.8],
runtime/global.scm[14.55], runtime/lambdx.scm[14.10],
runtime/make.scm[14.75], runtime/msort.scm[14.9],
runtime/ntprm.scm[1.37], runtime/os2prm.scm[1.48],
runtime/qsort.scm[14.5], runtime/queue.scm[14.5],
runtime/runtime.pkg[14.385], runtime/sfile.scm[14.32],
runtime/symbol.scm[1.6], runtime/udata.scm[14.21],
runtime/unxprm.scm[1.62], runtime/vector.scm[14.17]:
Restructure packaging so that all runtime-system packages inherit from
the (RUNTIME) package. We will use the latter as a place to attach
the syntax from SYNTAX-TABLE/SYSTEM-INTERNAL.

* runtime/make.scm[14.74]:
Fix typo in comment.

2001-12-17 Chris Hanson <[email protected]>

* microcode/cmpauxmd/i386.m4[1.55]:
Athlon model 2 is OK as well.

* microcode/cmpauxmd/i386.m4[1.54]:
Fine tune the code that decides when to use CPUID. For now, use it
only for Athlon model 1, 2, 3, or 4 processors. According to AMD, the
model 6 is OK, and perhaps the model 7 as well. The model 4 is known
to be bad, and models 1, 2, and 3 are probably bad too. No Intel
processors are known to be bad.

* microcode/cmpauxmd/i386.m4[1.53]:
Fix: ia32_cache_synchronize is supposed to be an ordinary C procedure,
not an "entry point" for "cmpint.c".

* microcode/cmpauxmd/i386.m4[1.52]:
Use ".586p" rather than ".386p"; otherwise the CPUID instruction isn't
recognized.

* microcode/makegen/Makefile.in.in[1.18]:
Fix default target; it wasn't including everything.

* 6001/6001.pkg[1.13], compiler/machines/C/compiler.sf[1.8],
compiler/machines/alpha/compiler.sf[1.8],
compiler/machines/bobcat/compiler.sf[1.20],
compiler/machines/i386/compiler.sf[1.14],
compiler/machines/mips/compiler.sf-big[1.10],
compiler/machines/mips/compiler.sf-little[1.10],
compiler/machines/spectrum/compiler.sf[1.20],
compiler/machines/vax/compiler.sf[1.11], cref/Makefile.in[1.2],
cref/cref.sf[1.14], cref/make.scm[1.24], cref/redpkg.scm[1.23],
cref/toplev.scm[1.16], edwin/Clean.sh[1.5], edwin/edwin.sf[1.27],
edwin/make.scm[3.113], imail/Makefile.in[1.3], imail/clean.sh[1.4],
imail/imail.pkg[1.94], runtime-check/Clean.sh[1.3],
runtime-check/Setup.sh[1.5], runtime/make.scm[14.73],
runtime/packag.scm[14.36], runtime/runtime.pkg[14.384],
runtime/sfile.scm[14.31], runtime/version.scm[14.204],
sf/butils.scm[4.11], sf/make.scm[4.40], sf/sf.pkg[4.12],
sos/Makefile.in[1.3], star-parser/Makefile.in[1.2],
xml/Makefile.in[1.2]:
Change package system to conditionalize everything according to the
operating-system type. All output files are now OS-specific, e.g.
"runtime.pkg" produces output files "runtime-unx.{pkd,fre,crf}".
Package files can now use the conditionalization variable OS-TYPE.

* edwin/filcom.scm[1.221], edwin/make.scm[3.112]:
Allow syntax-table information to be left out of FFI tables. This
simplifies transition to new system in which syntax information is
stored in environments.

* runtime/version.scm[14.203]:
Update to reflect that things have changed since the 7.6.0 release.

2001-12-16 Chris Hanson <[email protected]>

* compiler/base/make.scm[4.116], compiler/base/make.scm[4.115.4.1],
compiler/machines/i386/dassm3.scm[1.7],
compiler/machines/i386/instr1.scm[1.12],
compiler/machines/i386/lapgen.scm[1.28],
compiler/machines/i386/rules3.scm[1.35], microcode/bchdmp.c[9.90],
microcode/bchgcl.c[9.54], microcode/bintopsb.c[9.74],
microcode/cmpauxmd/i386.m4[1.51], microcode/cmpgc.h[1.32],
microcode/cmpint.c[1.95], microcode/cmpintmd/alpha.h[1.6],
microcode/cmpintmd/i386.h[1.33], microcode/fasdump.c[9.66],
microcode/fasload.c[9.91], microcode/gcloop.c[9.49],
microcode/nttrap.c[1.19], microcode/os2xcpt.c[1.9],
microcode/purify.c[9.61], microcode/purutl.c[9.52],
microcode/uxtrap.c[1.31], microcode/version.h[11.182],
microcode/version.h[11.181.4.2], microcode/wabbit.c[1.9]:
Add explicit cache synchronization support to work around a bug in the
Athlon.

* compiler/machines/i386/rules3.scm[1.34.4.3]:
Use new compiled-code hook to executes the CPUID instruction out of
line only on those processors that need it.

* compiler/machines/i386/lapgen.scm[1.27.4.1],
microcode/cmpauxmd/i386.m4[1.50.8.2],
microcode/cmpintmd/i386.h[1.32.4.2]:
Add asm_conditionally_serialize, a compiled-code hook that executes
the CPUID instruction for some processors.

* compiler/machines/i386/rules3.scm[1.34.4.2]:
Use a different code sequence for CPUID; see if it gets better
performance.

* compiler/machines/i386/dassm3.scm[1.6.4.1]:
Add CPUID instruction.

2001-12-14 Chris Hanson <[email protected]>

* microcode/version.h[11.181.4.1]:
Update version number for IA-32 cache synchronization.

* microcode/bchdmp.c[9.89.4.1], microcode/bchgcl.c[9.53.4.1],
microcode/bintopsb.c[9.73.4.1], microcode/cmpgc.h[1.31.4.1],
microcode/cmpint.c[1.94.4.1], microcode/cmpintmd/alpha.h[1.5.8.1],
microcode/fasdump.c[9.65.4.1], microcode/fasload.c[9.90.4.1],
microcode/gcloop.c[9.48.4.1], microcode/nttrap.c[1.18.4.1],
microcode/os2xcpt.c[1.8.4.1], microcode/purify.c[9.60.4.1],
microcode/purutl.c[9.51.4.1], microcode/uxtrap.c[1.30.4.1],
microcode/wabbit.c[1.8.4.1]:
Eliminate stupid -1 offset in MANIFEST_CLOSURE_END.

* compiler/machines/i386/rules3.scm[1.34.4.1]:
Invoke CPUID instruction after allocating a closure, in order to
synchronize the I/D caches. This is a temporary kludge for proof of
concept; it will be replaced by more efficient code.

* compiler/machines/i386/instr1.scm[1.11.4.1]:
Add support for CPUID instruction.

* microcode/cmpintmd/i386.h[1.32.4.1]:
Add support for cache synchronization.

* microcode/cmpauxmd/i386.m4[1.50.8.1]:
Add support for CPUID instruction.
Remove support for DOS and HACK_SEGMENT_REGS.

2001-12-11 Chris Hanson <[email protected]>

* compiler/base/switch.scm[4.25.2.1],
compiler/fggen/canon.scm[1.16.2.1]:
Eliminate COMPILER:AVOID-SCODE?.

* sicp/genenv.scm[1.3.2.1]:
Eliminate use of MAKE-ENVIRONMENT.

2001-12-10 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.113.2.1], imail/fake-env.scm[1.4.2.2]:
Rename EXTEND-IC-ENVIRONMENT to EXTEND-INTERPRETER-ENVIRONMENT.

* compiler/base/utils.scm[4.20.2.1], edwin/schmod.scm[1.53.2.1],
runtime/Attic/macros.scm[1.3.2.1], runtime/infutl.scm[1.65.2.1],
runtime/unsyn.scm[14.21.2.1]:
Eliminate rule for MAKE-ENVIRONMENT.

* compiler/etc/disload.scm[1.9.2.1], imail/fake-env.scm[1.4.2.1]:
Eliminate use of MAKE-ENVIRONMENT.

2001-12-07 Chris Hanson <[email protected]>

* microcode/lookup.c[9.66]:
Must call MAP_TO_UNASSIGNED on value of definition when creating a new
binding.

2001-12-05 Chris Hanson <[email protected]>

* microcode/config.guess[11.2], microcode/config.sub[11.2]:
Update autoconf config.* files.

2001-12-03 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.279], imail/load.scm[1.37]:
Change imail-forward to (by default) ask whether to forward all
headers.

2001-11-27 Chris Hanson <[email protected]>

* runtime/Makefile.in[1.6]:
URL support no longer in runtime system; remove reference.

* microcode/makegen/Makefile.in.in[1.17]:
Change default target so that it doesn't try to generate "utabmd.bin".
The "all" target remains unchanged.

* cref/redpkg.scm[1.22]:
Make another attempt to fix the problem with imports. The previous
fix didn't work when the analysis information was absent.

2001-11-26 Chris Hanson <[email protected]>

* runtime/msort.scm[14.8]:
Tweak merge sort to be stable.

2001-11-21 Chris Hanson <[email protected]>

* runtime/unicode.scm[1.2]:
Change WELL-FORMED-CODE-POINTS-LIST? to require that the argument be a
proper list.

2001-11-20 Chris Hanson <[email protected]>

* star-parser/shared.scm[1.21]:
Optimizer wasn't deleting unused procedure-valued bindings if the
procedure had side-effects. The bug fix to make top-level failure
continuations do backtracking prevented them from being substituted
properly; the substitution predicate was extended to allow this.
Also, some valuable substitutions weren't being seen because the
optimizers were being run in a fixed order. After the peephole
optimization is done, it reveals more possibilities for substitution.
So now the optimizers are re-run until nothing more can be done.

* star-parser/matcher.scm[1.25], star-parser/parser.scm[1.28]:
Top-level failure continuations must do backtracking.

2001-11-19 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.195]:
Change imap-url-mailbox to always be a string. The root "mailbox" is
"", and the root container is "/". Both of these are handled
specially when converting the URL to a string.

This fixes the bug that allowed the malformed container URL
"imap://localhost//".

2001-11-18 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.194], imail/imail-imap.scm[1.193]:
Change file naming for cache files, so that it satisfies more
stringent Windows requirements. Make sure that directory structure
exists before locking a folder.

2001-11-15 Chris Hanson <[email protected]>

* cref/redpkg.scm[1.21]:
Fix bug: imported bindings in package extensions weren't being
constructed.

2001-11-14 Chris Hanson <[email protected]>

* runtime/version.scm[14.202]:
Update version number for 7.6.0 release.

* star-parser/matcher.scm[1.24], star-parser/parser.scm[1.27],
star-parser/shared.scm[1.20], star-parser/shared.scm[1.19]:
Fix some problems in the pointer optimization: pointers were being
incorrect elided across lambda expressions, and external pointer
bindings were being elided. The latter is fixed by introducing a
mechanism to distinguish internal identifiers, which eliminates the
need for the WITH-POINTER kludge.

* star-parser/matcher.scm[1.23], star-parser/parser.scm[1.26],
star-parser/shared.scm[1.18], star-parser/shared.scm[1.17]:
Change naming of peephole optimizer. Fold all optimization into
GENERATE-EXTERNAL-PROCEDURE.

* star-parser/shared.scm[1.16]:
Add optimizer to elide unnecessary buffer-pointer assignments.

2001-11-11 Chris Hanson <[email protected]>

* imail/load.scm[1.36], xml/load.scm[1.4]:
Runtime support for *PARSER now integrated into the runtime system.

* runtime/ed-ffi.scm[1.30], runtime/runtime.pkg[14.383],
runtime/unicode.scm[1.1], star-parser/Attic/buffer.scm[1.12],
star-parser/Attic/unicode.scm[1.7], star-parser/compile.scm[1.4],
star-parser/ed-ffi.scm[1.4], star-parser/parser.pkg[1.15]:
Move unicode support into runtime system.

* runtime/rexp.scm[1.18]:
Fix typo.

* runtime/ed-ffi.scm[1.29], runtime/parser-buffer.scm[1.1],
runtime/runtime.pkg[14.382]:
Move parser-buffer abstraction into runtime system.

* star-parser/shared.scm[1.15]:
Reorganize code for presentation style -- no change in function. Add
comments explaining how new optimizer works. Split up some large
procedures into smaller focused pieces. Reorder code to improve
readability.

2001-11-10 Chris Hanson <[email protected]>

* star-parser/matcher.scm[1.22], star-parser/parser.scm[1.25]:
Add comment explaining the WITH-POINTER kludge.

2001-11-09 Chris Hanson <[email protected]>

* star-parser/load.scm[1.11], star-parser/matcher.scm[1.21],
star-parser/matcher.scm[1.20], star-parser/parser.scm[1.24],
star-parser/parser.scm[1.23], star-parser/shared.scm[1.14]:
Implement substitution optimizer, which does a kind of data-flow
analysis to eliminate unnecessary lambda expressions.

* xml/compile.scm[1.7]:
Need SOS loaded for proper compilation.

2001-11-06 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.192], imail/imail-imap.scm[1.191],
imail/imail-top.scm[1.278], imail/imail.pkg[1.93],
imail/todo.txt[1.135]:
Add locking mechanism for the IMAP folder cache. There is one lock
per folder, and the lock is held only while the folder cache is being
read and/or written. IMAIL will try three times to obtain the lock,
waiting one second between retries; thereafter it ignores the cache
until the lock becomes available.

2001-11-05 Chris Hanson <[email protected]>

* imail/load.scm[1.35], imail/url.scm[1.11]:
Make sure *PARSER is loaded for IMAIL. It's not necessary to load it
just for the URL file.

* imail/compile.scm[1.15], imail/ed-ffi.scm[1.17],
imail/imail.pkg[1.92], imail/imail.pkg[1.91], imail/load.scm[1.34],
runtime/Attic/url.scm[1.11], runtime/ed-ffi.scm[1.28],
runtime/optiondb.scm[1.13], runtime/runtime.pkg[14.381],
runtime/version.scm[14.201]:
Move URL support back to IMAIL from the runtime system.

* imail/url.scm[1.10]:
Move this back to IMAIL from the runtime system. Unlike anything else
in the runtime system, it requires *PARSER to compile, and I'm not
ready to add that dependency.

* xml/load.scm[1.3]:
Add missing option dependencies.

* compiler/base/make.scm[4.115]:
Many changes to closure analysis require incrementing version number.

* compiler/fgopt/closan.scm[4.29]:
Add long explanation of the analysis.

* compiler/fgopt/closan.scm[4.28]:
Stylistic changes.

* compiler/fgopt/closan.scm[4.27]:
Three fixes that together resolve the problem of compiling the XML
parser. (1) FOR-EACH-CALLEE! claimed to examine all of the callees,
but it wasn't looking at procedures called from descendant blocks that
had been disowned. (2) When removing dependent constraints, due to
closure, constraints that had indirect dependencies on the now-closed
procedure weren't being removed. (3) When adding undrifting
constraints due to closure contagion, it's wrong to constrain the
invocation block of a trivial closure.

2001-11-03 Chris Hanson <[email protected]>

* compiler/fgopt/closan.scm[4.26]:
Use new names for LIST-TRANSFORM- procedures; eliminate private
definition for LIST-TRANSFORM-NEGATIVE!. Open up definition of
FOR-EACH-CALLEE! so that it can be experimented with. Change
implementation of undrifting conditions so that they can have multiple
dependencies.

2001-11-02 Chris Hanson <[email protected]>

* edwin/schmod.scm[1.53]:
Add indentation bindings for new names in runtime system.

* runtime/uenvir.scm[14.43], runtime/uenvir.scm[14.42]:
Fix bug: ENVIRONMENT-BOUND? wasn't examining ancestors of
compiled-code environment frames.

* compiler/fgopt/closan.scm[4.25]:
Rearrange code to separate out manipulation of constraints list.

* compiler/fgopt/closan.scm[4.24]:
Add explicit CONDITION datatype to track the conditions that tag
undrifting constraints. This simplifies the code and clarifies what
is happening.

Also change PENDING-UNDRIFTING? to examine the conditions for validity
in the same way that UNDRIFT-PROCEDURES! does.

* compiler/fgopt/closan.scm[4.23]:
Guarantee that empty constraint entries are entirely removed.

* runtime/list.scm[14.27], runtime/runtime.pkg[14.380]:
Change names:

list-transform-positive => keep-matching-items
list-transform-negative => delete-matching-items
list-search-positive => find-matching-item

Implement new procedures:

keep-matching-items!
delete-matching-items!

2001-11-01 Chris Hanson <[email protected]>

* compiler/fgopt/closan.scm[4.22]:
Add hooks to generate debugging info about constraints.

* compiler/fgopt/closan.scm[4.21]:
Use RVALUE/TRUE-PROCEDURE? where appropriate.

* compiler/fgopt/closan.scm[4.20], compiler/fgopt/envopt.scm[1.10]:
Rewrite for style.

* compiler/fgopt/closan.scm[4.19], compiler/fgopt/envopt.scm[1.9]:
Change value of PROCEDURE-FREE-CALLEES so that it contains sets of
blocks rather than lists of variables.

2001-10-30 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.277]:
Change M-x imail-file-message to default to the last output file.

* edwin/filcom.scm[1.220]:
Use PROMPT-OPTIONS-DEFAULT-STRING to determine default prompt. This
allows caller to specify that history is to be used.

* edwin/edwin.pkg[1.275], edwin/prompt.scm[1.198]:
Implement PROMPT-OPTIONS-DEFAULT-STRING to determine whether a set of
options specifies a default prompt string.

2001-10-25 Chris Hanson <[email protected]>

* microcode/uxtrap.h[1.30]:
Modern GNU/Linux implementations provide full siginfo and sigcontext
support, so use that instead of kludging our own.

* microcode/uxsig.c[1.37]:
Add code to reinitialize the floating-point control word on IA-32
machines when SIGFPE is received. When this isn't done, all of the
traps are disabled.

* imail/imail-top.scm[1.276]:
Add workaround for non-standard MIME encoding types used by Microsoft.

2001-10-24 Chris Hanson <[email protected]>

* compiler/base/proced.scm[4.23]:
Implement RVALUE/TRUE-PROCEDURE?.

2001-10-23 Chris Hanson <[email protected]>

* microcode/prmhash.c[11.4]:
Fix problem: I was interpreting the meaning of mhash_count
incorrectly.

2001-10-22 Chris Hanson <[email protected]>

* compiler/base/blocks.scm[4.15], compiler/base/lvalue.scm[4.22],
compiler/base/proced.scm[4.22], compiler/base/proced.scm[4.21],
compiler/base/rvalue.scm[4.8], compiler/fgopt/desenv.scm[4.5]:
Update for style.

* runtime/fixart.scm[1.7]:
Add FLO:FINITE?.

2001-10-17 Chris Hanson <[email protected]>

* compiler/base/debug.scm[4.16]:
Fix newline convention of debugging tools to match current convention.

2001-10-16 Chris Hanson <[email protected]>

* xml/xml-parser.scm[1.11]:
Fix problem in declaration parser.

* etc/optiondb.scm[1.8]:
Add *PARSER and XML options.

* star-parser/matcher.scm[1.19], star-parser/parser.scm[1.22],
star-parser/shared.scm[1.13]:
Add code to reuse existing buffer pointers where possible.

* star-parser/matcher.scm[1.18], star-parser/parser.scm[1.21],
star-parser/shared.scm[1.12]:
OK, this time it's right. I've gone through all the combinations, and
everything makes sense. There are some minor efficiency issues which
will be resolved in the next revision.

* compiler/base/make.scm[4.114], compiler/fgopt/conect.scm[4.6]:
Fix bug: don't avoid coloring part of the graph just because it is
going to be inlined later. There is probably a subtle bug here, but
finding it will require too much thought, and this fix appears to
work.

* star-parser/matcher.scm[1.17], star-parser/parser.scm[1.20],
star-parser/shared.scm[1.11]:
Rewrite control structures again. These seem correct, after many
hours of thought and testing. Also make new top-level wrapper for
code generators, and eliminate a couple of unused definitions.

2001-10-15 Chris Hanson <[email protected]>

* star-parser/load.scm[1.10], star-parser/matcher.scm[1.16],
star-parser/parser.scm[1.19], star-parser/shared.scm[1.10]:
Complete rewrite of output control structure. New structure supports
backtracking properly, doing greedy matching until a failure occurs,
then backtracking arbitrarily deeply to find a way forward.

2001-10-14 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.190]:
Fix bug: large message-body parts were being stored in the cache as
zero-length strings.

2001-10-13 Chris Hanson <[email protected]>

* imail/imap-syntax.scm[1.18]:
Rewrite so we don't depend on matchers lifting complex expressions
upwards.

2001-10-10 Chris Hanson <[email protected]>

* runtime/option.scm[14.38]:
Fix LOAD-OPTION so that a loading option can load any other option.

* imail/Attic/parser.scm[1.5], imail/compile.scm[1.14],
imail/ed-ffi.scm[1.16], imail/imail-imap.scm[1.189],
imail/imail.pkg[1.90], imail/imap-response.scm[1.44],
imail/imap-syntax.scm[1.17], imail/load.scm[1.33],
runtime/Attic/url.scm[1.10], runtime/runtime.pkg[14.379]:
The parser language developed for IMAIL has been replaced by the
newer *PARSER facility.

2001-10-09 Chris Hanson <[email protected]>

* etc/Stage.sh[1.3]:
Fix quoting problem.

* runtime/optiondb.scm[1.12]:
Fix case of symbol.

* star-parser/matcher.scm[1.15]:
Interpret bare string or char as self.

* star-parser/parser.scm[1.18]:
Interpret bare string or char to be noise.

2001-10-05 Chris Hanson <[email protected]>

* imail/Attic/rexp.scm[1.16], imail/compile.scm[1.13],
imail/ed-ffi.scm[1.15], imail/imail.pkg[1.89], imail/load.scm[1.32],
imail/url.scm[1.9]:
Remove URL and rexp support, which are now in the runtime system.

* etc/compile.scm[1.3]:
Don't forget to compile *parser and xml support.

* runtime/savres.scm[14.34]:
Don't clear the screen on restore.

* runtime/Makefile.in[1.5], runtime/ed-ffi.scm[1.27],
runtime/optiondb.scm[1.11], runtime/runtime.pkg[14.378]:
Add URL-encoding support.

* runtime/Attic/url.scm[1.9]:
Fix copyright. Guarantee regular-expression is loaded. Fix bug in
URL:SUBSTRING-ENCODED?.

* runtime/rexp.scm[1.17]:
Fix copyright dates.

* runtime/ed-ffi.scm[1.26]:
Add missing file: ntdir.

* runtime/Makefile.in[1.4], runtime/ed-ffi.scm[1.25],
runtime/optiondb.scm[1.10], runtime/runtime.pkg[14.377]:
Add rexp abstraction.

* runtime/rexp.scm[1.16]:
Update copyright. Add comment explaining contents of file. Change
logic since character sets are no longer represented as strings. If
character set is argument to CASE-FOLD, then case-fold it.

2001-10-04 Chris Hanson <[email protected]>

* Makefile.in[1.18], Setup.sh[1.7], configure.in[1.5]:
Integrate *PARSER and XML support into system.

* star-parser/Attic/buffer.scm[1.11],
star-parser/Attic/unicode.scm[1.6]:
Fix typo.

* star-parser/Makefile.in[1.1], star-parser/load.scm[1.9],
star-parser/load.scm[1.8], star-parser/parser.pkg[1.14],
xml/Makefile.in[1.1], xml/compile.scm[1.6], xml/load.scm[1.2],
xml/xml.pkg[1.8]:
Integrate into MIT Scheme.

* star-parser/Attic/unicode.scm[1.5], star-parser/parser.pkg[1.13]:
Implement READ-UTF8-CODE-POINT and WRITE-UTF8-CODE-POINT.

* microcode/string.c[9.47], microcode/string.c[9.46],
microcode/string.c[9.45]:
Don't unnecessarily change the length of a string when altering its
maximum length.

* star-parser/Attic/buffer.scm[1.10], star-parser/parser.pkg[1.12],
star-parser/parser.pkg[1.11]:
Move MATCH-UTF8-CHAR-IN-ALPHABET into parser-buffer abstraction.

* star-parser/Attic/unicode.scm[1.4], star-parser/parser.pkg[1.10]:
Remove all references to parser buffers.

* star-parser/Attic/buffer.scm[1.9]:
Optimize code to read and match characters from the buffer.

2001-10-02 Chris Hanson <[email protected]>

* runtime/global.scm[14.54]:
Add binding for UNBIND-VARIABLE.

2001-10-01 Chris Hanson <[email protected]>

* cref/redpkg.scm[1.20]:
Fix bug that was causing some variables to erroneously have multiple
bindings.

* imail/imail-top.scm[1.275]:
Leave attachment markers in the output message. The result will be an
exact copy of the buffer contents.

* star-parser/compile.scm[1.3], xml/compile.scm[1.5]:
Update for new CREF.

2001-09-30 Chris Hanson <[email protected]>

* imail/todo.txt[1.134]:
Make changes related to new cache mechanism.

2001-09-29 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.274]:
START-PROBE-FOLDER-THREAD is being called whenever a message is
selected, but unfortunately if there was already a thread, it was
being killed and a new one started, which generated network traffic on
an IMAP folder. Now it doesn't do anything if there is already a
thread.

* imail/imail-imap.scm[1.188]:
Don't generate "Reading ..." messages unless actually going to the
network. Remove debugging code inadvertently left in last revision.

* imail/todo.txt[1.133]:
Add disk cache for IMAP folders.

2001-09-28 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.187], imail/imail-imap.scm[1.186],
imail/load.scm[1.31]:
Add disk cache for IMAP folders.

* imail/imail-top.scm[1.273]:
Implement new command M-x imail-file-message, which writes message to
a file in a human-readable format.

* imail/imail-file.scm[1.80], imail/imail-rmail.scm[1.69],
imail/imail-top.scm[1.272], imail/imail-umail.scm[1.50],
imail/imail.pkg[1.88], imail/load.scm[1.30]:
Change handling of file folders so that their type is determined
solely by their contents rather than their names.

* cref/conpkg.scm[1.14], cref/forpkg.scm[1.10], cref/redpkg.scm[1.19]:
Fix bug: package parent can sometimes be the symbol UNKNOWN.

2001-09-25 Chris Hanson <[email protected]>

* Makefile.in[1.17], configure.in[1.4], cref/Makefile.in[1.1]:
CREF should now be included in the install directory.

* compiler/Clean.sh[1.5], edwin/Clean.sh[1.4], edwin/Clean.sh[1.3]:
Update to reflect changes to packaging.

* sf/gconst.scm[4.26]:
Remove four more definitions that are no longer bound to primitives.

* edwin/prompt.scm[1.197]:
Fix bug: documentation string for M-x repeat-complex-command was
referring to repeat-complex-command mode, which no longer exists.

* microcode/utabmd.scm[9.79]:
Eliminate calls to IMPLEMENTED-PRIMITIVE-PROCEDURE? which were causing
trouble in the boot load. This was due to rewriting of string
support.

* compiler/rtlgen/opncod.scm[4.70]:
Fix typo in previous change.

* compiler/rtlopt/rinvex.scm[1.10]:
Eliminate use of DEFINE-METHOD syntactic keyword.

* compiler/rtlgen/opncod.scm[4.69]:
Don't open-code any of the cell primitives.

* runtime/runtime.pkg[14.376], runtime/string.scm[14.45]:
Extensive rewriting to make type-checking more uniform, and to
eliminate cases where it was being performed twice. Eliminate even
more primitives, and speed up the procedures as much as possible.

* runtime/char.scm[14.13]:
Split off unchecked character comparisons, for inclusion in
"string.scm".

* runtime/chrset.scm[14.16]:
Add type checking to all procedures, and rewrite some of the loops for
speed.

* runtime/chrsyn.scm[1.5]:
Fix bug in previous change.

* runtime/runtime.sf[14.16]:
The file "char.scm" must now be compiled early as it is integrated
into "string.scm".

* runtime/packag.scm[14.35]:
Fix thinko.

* sf/gconst.scm[4.25], sf/make.scm[4.39]:
Eliminate a large number of inlined primitives. Some of these are
necessary due to changes in the runtime system. Others are eliminated
because I don't want their names reserved, or because it's
inappropriate to inline them.

* runtime/list.scm[14.26]:
Change LENGTH to be a Scheme procedure rather than a primitive. New
procedure now checks its argument for circularity and signals an error.

* runtime/utabs.scm[14.14]:
Write private version of INTERN, which is needed early in the boot
sequence before all of the necessary mechanism is initialized.

* runtime/rgxcmp.scm[1.116]:
Fix bugs in character-set compilation. This code was confusing ASCII
fixnums and characters, which works only in compiled code.

* runtime/random.scm[14.24]:
Initialization sequence for RNG was depending on fact that
REAL-TIME-CLOCK was inline-coded.

* edwin/calias.scm[1.21]:
Fix bug: EMACS-KEY-NAME wasn't able to handle a button as an argument.

2001-09-24 Chris Hanson <[email protected]>

* runtime/char.scm[14.12], runtime/runtime.pkg[14.375],
runtime/string.scm[14.44]:
Make ISO-8859-1 changes to string code, which involved rewriting all
of the case-aware procedures. Many of these were inherited from
primitives, so it was necessary to write Scheme versions of the
primitives.

* runtime/chrset.scm[14.15]:
Extend alphabetic predicates to know about ISO-8859-1 letters.

* runtime/char.scm[14.11]:
Eliminate use of all character primitives except for CHAR?,
CHAR->INTEGER, and INTEGER->CHAR. It is probably faster to write them
in Scheme.

Extend CHAR-UPCASE and CHAR-DOWNCASE to know about ISO-8859-1 letters.

* runtime/chrsyn.scm[1.4]:
Add ISO-8859-1 syntax to standard table.

* runtime/mime-codec.scm[14.11]:
Update copyright statement.

2001-09-21 Chris Hanson <[email protected]>

* edwin/process.scm[1.60]:
Add prompt history for M-x shell-command.

* edwin/edwin.pkg[1.274]:
Add missing variable exports.

2001-09-20 Chris Hanson <[email protected]>

* imail/imail-summary.scm[1.47]:
Put up message while generating summary buffer. Use fixnum arithmetic
here to speed things up slightly.

* imail/imail-summary.scm[1.46]:
To each message shown in a summary buffer, attach a mark pointing at
the line on which the message is shown. Use this in the code that
maps from messages to marks, changing it from (slow) linear time in
the number of messages to constant time.

* imail/imail-summary.scm[1.45]:
Fix problem with IMAIL-SUMMARY-MATCH-LINE: messages with malformed
dates were not being matched.

2001-09-14 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.271]:
M-x imail-sort-by-subject should do a case-insensitive sort.

* imail/imail-top.scm[1.270]:
Add key binding for M-x imail-sort-by-arrival.

* imail/imail-top.scm[1.269], imail/todo.txt[1.132]:
Implement folder-sorting commands.

* imail/imail-core.scm[1.146], imail/imail-summary.scm[1.44]:
Change names: new functionality is not a permutation but an order.

* imail/imail-core.scm[1.145], imail/imail-file.scm[1.79],
imail/imail-imap.scm[1.185], imail/imail-summary.scm[1.43],
imail/load.scm[1.29]:
Add mechanism to permute the message order of a folder.

2001-09-10 Chris Hanson <[email protected]>

* runtime/mime-codec.scm[14.10]:
Work around bug in "Microsoft Outlook IMO, Build 9.0.2416
(9.0.2910.0)" -- it sends documents of type application/octet-stream
with embedded hard line breaks, which is illegal according to RFC
2045, page 20:

Since the canonical representation of media types other than
text do not generally include the representation of line
breaks as CRLF sequences, no hard line breaks (i.e. line
breaks that are intended to be meaningful and to be displayed
to the user) can occur in the quoted-printable encoding of
such types.

2001-08-22 Chris Hanson <[email protected]>

* microcode/lookprm.c[1.16]:
Fix problem with multi-line primitive documentation.

2001-08-20 Chris Hanson <[email protected]>

* cref/conpkg.scm[1.13], cref/object.scm[1.14], cref/redpkg.scm[1.18],
cref/triv.pkg[1.7], runtime/packag.scm[14.34]:
More changes to .pkd files: now the information about loading and
initialization is separated from the information about environments
and bindings. The load/initialization sequence as written in the .pkg
file is preserved in the .pkd file.

* cref/conpkg.scm[1.12], cref/object.scm[1.13], cref/redpkg.scm[1.17],
cref/triv.pkg[1.6], runtime/packag.scm[14.33]:
Change .pkd file to have clearly defined exports and imports that
directly correspond to those written by the programmer in the .pkg
file. This eliminates the duplicate links that were present in the
previous design.

2001-08-18 Chris Hanson <[email protected]>

* 6001/6001.pkg[1.12], 6001/make.scm[15.32],
compiler/base/make.scm[4.113], cref/conpkg.scm[1.11],
cref/make.scm[1.23], cref/object.scm[1.12], cref/redpkg.scm[1.16],
cref/triv.pkg[1.5], runtime/packag.scm[14.32], win32/make.scm[1.8],
win32/win32.pkg[1.13]:
Add additional information to .pkd file to support automatic evaluation
of package-initialization expressions. Major problems cropped up with
package extensions, which necessitated some redesign of CREF.

2001-08-17 Chris Hanson <[email protected]>

* 6001/make.scm[15.31], compiler/base/make.scm[4.112],
cref/make.scm[1.22], edwin/make.scm[3.111], imail/load.scm[1.28],
rcs/load.scm[1.3], runtime/make.scm[14.72],
runtime/packag.scm[14.31], runtime/runtime.pkg[14.374],
sf/make.scm[4.38], sos/load.scm[1.7], win32/make.scm[1.7]:
Rename PACKAGE/SYSTEM-LOADER to LOAD-PACKAGE-SET. That will allow us
to have an operation named UNLOAD-PACKAGE-SET.

* win32/win32.sf[1.5]:
Update for changes to package system.

2001-08-16 Chris Hanson <[email protected]>

* cref/Attic/Clean.sh[1.3]:
No longer needed.

* cref/cref.pkg[1.10], cref/redpkg.scm[1.15], cref/redpkg.scm[1.14],
cref/toplev.scm[1.15]:
Eliminate use of ".glo" files; ".pkd" files have all the information
needed.

* etc/Clean.sh[1.6]:
Update to correspond to packaging changes.

* cref/conpkg.scm[1.10], cref/triv.pkg[1.4], cref/triv.pkg[1.3],
cref/triv.pkg[1.2], runtime/packag.scm[14.30]:
Change "parent-name" field of package description to contain the names
of every ancestor of the package. This is necessary so that we can
replace the use of ".glo" files with ".pkd" files.

* compiler/machines/C/compiler.sf[1.7],
compiler/machines/alpha/compiler.sf[1.7],
compiler/machines/bobcat/compiler.sf[1.19],
compiler/machines/i386/compiler.sf[1.13],
compiler/machines/mips/compiler.sf-big[1.9],
compiler/machines/mips/compiler.sf-little[1.9],
compiler/machines/spectrum/compiler.sf[1.19],
compiler/machines/vax/compiler.sf[1.10]:
Synchronize "compiler.sf" on all the back ends.

* compiler/machines/i386/compiler.sf[1.12], edwin/edwin.sf[1.26]:
Don't use ACCESS to reference CREF/GENERATE-TRIVIAL-CONSTRUCTOR. It's
now exported to the global environment.

2001-08-15 Chris Hanson <[email protected]>

* 6001/6001.sf[1.11], compiler/machines/i386/compiler.sf[1.11],
cref/Attic/triv.con[1.6], cref/Attic/triv.ldr[1.5],
cref/conpkg.scm[1.9], cref/cref.pkg[1.9], cref/cref.sf[1.13],
cref/make.scm[1.21], cref/object.scm[1.11], cref/toplev.scm[1.14],
cref/triv.pkg[1.1], edwin/edwin.sf[1.25], edwin/make.scm[3.110],
imail/Makefile.in[1.2], imail/clean.sh[1.3], imail/compile.scm[1.12],
rcs/compile.scm[1.3], runtime-check/Clean.sh[1.2],
runtime-check/Setup.sh[1.4], runtime/dragon4.scm[1.15],
runtime/list.scm[14.25], runtime/make.scm[14.71],
runtime/packag.scm[14.29], runtime/runtime.pkg[14.373],
runtime/runtime.sf[14.15], runtime/vector.scm[14.16],
runtime/version.scm[14.200], sf/sf.sf[4.9], sos/Makefile.in[1.2],
sos/compile.scm[1.4]:
Implement completely new format for compiled package descriptions.
Old format was code to build the packages and load files into them.
New format is a summary description of the packages, which is
interpreted at run time to provide the same functionality.

The purpose of this change is to support uninstallation and
replacement of packages. The new compiled package descriptions are
general enough for this purpose.

2001-08-14 Chris Hanson <[email protected]>

* microcode/lookup.c[9.65]:
Add optimization to link_variables so that it does nothing if the
variables are already linked.

2001-08-10 Chris Hanson <[email protected]>

* compiler/Stage.sh[1.2]:
Fix bug: "${S}/*" -> "${S}"/*.

* compiler/base/asstop.scm[1.12], compiler/base/make.scm[4.111],
compiler/base/toplev.scm[4.60], compiler/etc/comcmp.scm[1.7],
compiler/machines/bobcat/dassm1.scm[4.20],
compiler/machines/i386/dassm1.scm[1.10],
compiler/machines/mips/dassm1.scm[1.5],
compiler/machines/spectrum/dassm1.scm[4.20],
runtime/conpar.scm[14.39], runtime/infstr.scm[1.11],
runtime/infutl.scm[1.65], runtime/runtime.pkg[14.372]:
Redesign compiled-code debugging information so that it is keyed. The
key in the .com file and the key in the .bci file must match, or the
.bci file will be ignored.

* runtime/chrset.scm[14.14]:
Fix type error.

* microcode/interp.c[9.92]:
Make sure that value of evaluating definition is the name being
defined.

2001-08-09 Chris Hanson <[email protected]>

* 6001/edextra.scm[1.33], compiler/etc/disload.scm[1.9],
swat/scheme/load.scm[1.4]:
Replace usage of ENVIRONMENT-LINK-NAME with new LINK-VARIABLES.

* cref/conpkg.scm[1.8], cref/make.scm[1.20], cref/redpkg.scm[1.13]:
Replace usage of ENVIRONMENT-LINK-NAME with new LINK-VARIABLES.
Extend package-file language to allow linking variables with different
names.

* cref/cref.pkg[1.8]:
Fix packaging error.

* runtime/global.scm[14.53], runtime/make.scm[14.70],
runtime/uerror.scm[14.48]:
Replace usage of ENVIRONMENT-LINK-NAME with new LINK-VARIABLES.

This change requires microcode 14.5 or later.

2001-08-07 Chris Hanson <[email protected]>

* microcode/bchdmp.c[9.89], microcode/bchgcl.c[9.53],
microcode/bintopsb.c[9.73], microcode/cmpint.c[1.94],
microcode/fasdump.c[9.65], microcode/fasload.c[9.90],
microcode/gccode.h[9.58], microcode/gcloop.c[9.48],
microcode/lookprm.c[1.15], microcode/lookup.c[9.64],
microcode/lookup.h[9.55], microcode/psbmap.h[9.45],
microcode/psbtobin.c[9.59], microcode/purify.c[9.60],
microcode/sdata.h[9.38], microcode/trap.h[9.48],
microcode/types.h[9.38]:
Implement primitive to allow linking variables that have different
names. (Previously, linked variables were required to have the same
name.) This requires a major redesign of the cache data structures,
and since the garbage collector knows about these structures, all of
the garbage-collector files are affected too. The new data structures
have slightly different space requirements: a cache with no references
uses one word less than previously, while a cache with references uses
three words more than previously (independent of the number of
references).

This change requires Runtime 14.190 or later.

2001-08-06 Chris Hanson <[email protected]>

* edwin/snr.scm[1.61]:
Fix bug: news posting hasn't worked since the MIME attachment changes
went in some time ago.

2001-08-04 Chris Hanson <[email protected]>

* microcode/lookup.c[9.63]:
Fix bugs in unbind_variable.

* runtime/dbgutl.scm[14.20]:
Fix formatting of environments.

2001-08-03 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.371], runtime/uenvir.scm[14.41],
runtime/urtrap.scm[14.6], runtime/version.scm[14.199]:
Rewrite interpreter-environment abstraction to account for new
primitive that unbinds variables. This works with the old microcode.

2001-08-02 Chris Hanson <[email protected]>

* microcode/version.h[11.181]:
Update version to reflect changes to variable reference.

* microcode/lookup.c[9.62]:
In-line code flush_cache, which had one reference.

* microcode/lookprm.c[1.14], microcode/lookup.c[9.61],
microcode/lookup.h[9.54], microcode/sdata.h[9.37]:
Implement unlink_variable and associated primitive, which is not yet
tested.

Also, more cleanups to "lookup.c", particularly in code that accesses
cache reference lists. Increased abstraction in this area is being
prompted by potential design changes to allow linking variables with
different names.

* microcode/trap.h[9.47]:
Eliminate unused TRAP_RECACHE. Add updated comment explaining where
TRAP_UNBOUND is allowed to occur.

2001-08-01 Chris Hanson <[email protected]>

* microcode/sdata.h[9.36]:
Don't access a cache value as a cell.

* microcode/lookup.c[9.60]:
Simplify logic in a few places.

2001-07-31 Chris Hanson <[email protected]>

* microcode/boot.c[9.105], microcode/cmpint.c[1.93],
microcode/debug.c[9.53], microcode/extern.h[9.60],
microcode/fasload.c[9.89], microcode/hooks.c[9.60],
microcode/interp.c[9.91], microcode/lookprm.c[1.13],
microcode/lookup.c[9.59], microcode/lookup.h[9.53],
microcode/object.h[9.51], microcode/os2.h[1.8],
microcode/scode.h[9.27], microcode/sdata.h[9.35],
microcode/trap.h[9.46], microcode/utils.c[9.79]:
Completely rewrite the variable-reference code. New design is
considerably simpler, having discarded all the legacy code from the
Butterfly. Furthermore, two hacks to speed up the interpreter,
caching of variable locations and in-line variable reference, have
been removed. This makes the interpreter slower, but has no effect on
compiled code, and has several important benefits. One benefit is
that we can now implement undefine.

New design allows ENVIRONMENT-LINK-NAME to link to a variable that is
already bound (previous signalled an error in this case).

Eliminate "in-line" variable references in the interpreter. All
reference machinery is now defined in "lookup.c".

Define THE_GLOBAL_ENV and THE_NULL_ENV, and predicates to detect
them. Eliminate GO_TO_GLOBAL and END_OF_CHAIN definitions. Latter
was a name conflict under OS/2. Change definition of ENVIRONMENT_P
so that it is false for THE_NULL_ENV.

Define lots of macros to provide abstract access to the data
structures used for variable references. Change terminology, so
that instead of "trap extension" we now use "cache", and so on for
the substructures of the cache.

Add "guards" to allow .h files to be loaded more than once.

Remove variable-access procedures from "extern.h"; new procedures
are now defined in "lookup.h".

Eliminate all unused trap kinds.

2001-07-29 Chris Hanson <[email protected]>

* microcode/makegen/makegen.scm[1.3]:
When generating dependencies, pass -DMIT_SCHEME to compiler.

2001-07-21 Chris Hanson <[email protected]>

* edwin/comred.scm[1.122], edwin/editor.scm[1.252],
edwin/kmacro.scm[1.43], edwin/make.scm[3.109]:
Fix problem: errors during keyboard-macro execution were leaving the
editor in the command reader that was spawned to execute the keyboard
macro, rather than returning to the reader that was in control when
the keyboard-macro execution was initiated.

Some of the keyboard-macro state was being mismanaged by unnecessary
calls to KEYBOARD-MACRO-DISABLE. This was exacerbated because
KEYBOARD-MACRO-DISABLE was setting *KEYBOARD-MACRO-EXECUTING?* to #F
when it should have been left alone.

* imail/imail-imap.scm[1.184]:
Change UPDATE-IMAP-FOLDER-LENGTH! back to its original design.
The bug I was seeing had nothing to do with this code.

* imail/imail-imap.scm[1.183]:
Change UPDATE-IMAP-FOLDER-LENGTH! so that it always signals a
modification event.

2001-07-19 Chris Hanson <[email protected]>

* runtime/version.scm[14.198], runtime/version.scm[14.197]:
Update for post-release changes.

* sf/make.scm[4.37], sf/pardec.scm[4.12]:
Fix bug: when multiple USUAL-INTEGRATIONS declarations are given, the
excluded names should be the union of all of the declarations, but
instead were the intersection. This situation arises when using
COMPILE-FILE, which forces an additional USUAL-INTEGRATIONS
declarations on each file.

* microcode/os2sock.c[1.18]:
Fix typo. Supply definition for (surprisingly) missing INADDR_LOOPBACK.

* microcode/ntutl/makefile[1.28]:
A few more tweaks to get this working right.

* microcode/ntsock.c[1.11], microcode/os2fs.c[1.14]:
Fix typo.

* microcode/ntutl/makefile[1.27], microcode/ntutl/makefile.wcc[1.17]:
Disable crypto and gdbm support by default, since it relies on
libraries not commonly available.

2001-07-18 Chris Hanson <[email protected]>

* microcode/ntutl/makefile[1.26]:
Add code for using Microsoft's assembler.

* microcode/ntutl/makefile[1.25]:
Update to have hand-written dependencies as does the watcom makefile.

* runtime/version.scm[14.196]:
Change version for release 7.5.17.

2001-07-17 Chris Hanson <[email protected]>

* runtime/sfile.scm[14.30]:
Fix name of WIN32-NAMED-PIPE, which had underscore instead of hyphen.
Also add alias FILE-SOFT-LINK?.

2001-07-16 Chris Hanson <[email protected]>

* xml/compile.scm[1.4], xml/ed-ffi.scm[1.3], xml/test-parser.scm[1.5],
xml/xml-output.scm[1.1], xml/xml.pkg[1.7], xml/xml.pkg[1.6]:
Add code to write XML structures.

* xml/xml-parser.scm[1.10]:
Fix a number of bugs that were revealed during testing of the output
code.

* xml/xml-parser.scm[1.9]:
Tweak format of !ELEMENT content type to be a little easier to
disassemble.

* xml/xml-struct.scm[1.5], xml/xml.pkg[1.5]:
Delete now-unused entity-reference structures.

* microcode/uxsig.c[1.36]:
Must unblock all signals at start. A recent example that has caused
problems is that GNOME can sometimes cause Scheme to be started with
SIGCHLD blocked.

2001-07-14 Chris Hanson <[email protected]>

* xml/compile.scm[1.3]:
Use new parser/matcher macro environments.

* xml/xml-struct.scm[1.4], xml/xml.pkg[1.4]:
Export type descriptors for each of the XML data structure types.

* star-parser/load.scm[1.7], star-parser/matcher.scm[1.14],
star-parser/parser.pkg[1.9], star-parser/parser.scm[1.17],
star-parser/shared.scm[1.9]:
Add environment mechanism so that parser/matcher macros from one
program don't interfere with those from another.

2001-07-12 Chris Hanson <[email protected]>

* edwin/schmod.scm[1.52]:
Duh; DEFINE-STRUCTURE has one distinguished expression, not two.

* edwin/schmod.scm[1.51]:
Add indentation rule for DEFINE-STRUCTURE. I think maybe the standard
indentation for definitions isn't right.

* xml/xml-parser.scm[1.8]:
A bunch of simple edits resulting from reading over the code.

* xml/test-parser.scm[1.4]:
Rename RUN-VALIDITY-TESTS to RUN-XML-TESTS, and change it to run all
the tests in the xmltest directory.

* star-parser/Attic/unicode.scm[1.3]:
Fix some bugs.

* xml/compile.scm[1.2], xml/ed-ffi.scm[1.2], xml/parser-macro.scm[1.4],
xml/xml-chars.scm[1.1], xml/xml-parser.scm[1.7], xml/xml.pkg[1.3]:
Update to use new Unicode support in the parser language. This should
improve the conformance.

* star-parser/Attic/unicode.scm[1.2], star-parser/parser.pkg[1.8]:
Flesh out unicode support. Fix bugs.

2001-07-11 Chris Hanson <[email protected]>

* star-parser/Attic/unicode.scm[1.1], star-parser/compile.scm[1.2],
star-parser/ed-ffi.scm[1.3], star-parser/load.scm[1.6],
star-parser/matcher.scm[1.13], star-parser/parser.pkg[1.7]:
Add unicode support.

* star-parser/Attic/buffer.scm[1.8], star-parser/load.scm[1.5],
star-parser/parser.pkg[1.6]:
New procedure PARSER-BUFFER-REF.

2001-07-10 Chris Hanson <[email protected]>

* xml/xml-parser.scm[1.6]:
Reorganize for presentation.

* xml/parser-macro.scm[1.3], xml/test-parser.scm[1.3],
xml/xml-parser.scm[1.5]:
Another round of changes. Now passes all of the valid tests, and most
of the not-well-formed tests.

* xml/parser-macro.scm[1.2], xml/test-parser.scm[1.2],
xml/xml-parser.scm[1.4], xml/xml-struct.scm[1.3], xml/xml.pkg[1.2]:
Extensive reworking to get entity references done more or less right.
There remains a problem with recursive entity expansion -- there is a
mismatch between the tests and my reading of the specification.

* star-parser/matcher.scm[1.12]:
Add COMPLETE keyword.

2001-07-09 Chris Hanson <[email protected]>

* star-parser/parser.scm[1.16], star-parser/test-parser.scm[1.3]:
Rename ELEMENT-TRANSFORM to MAP.

2001-07-08 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.182]:
Change DISCONNECT-FOLDER to close the connection immediately, rather
than deferring. This is what the end-user expects to see happen.

2001-07-06 Chris Hanson <[email protected]>

* xml/test-parser.scm[1.1]:
Initial revision.

* edwin/fileio.scm[1.155]:
When file is written for the first time, mark the buffer as having
been backed up.

* xml/compile.scm[1.1], xml/ed-ffi.scm[1.1], xml/load.scm[1.1],
xml/parser-macro.scm[1.1], xml/xml-parser.scm[1.3],
xml/xml-struct.scm[1.2], xml/xml.pkg[1.1]:
Package the code. Move parser macros to their own file so that they
can be loaded during compilation.

Restructure the top-level parser to allow passing the DTD down to the
element parser for entity expansion.

Implement attribute-value normalization.

Add restrictions required for rejection of non-wf documents: no "--"
in comments; no duplicate attribute names.

Change names of DTD structures to reflect their keywords.

Fix various minor bugs, discovered either by the test suite or by the
compiler.

2001-07-05 Chris Hanson <[email protected]>

* xml/xml-parser.scm[1.2], xml/xml-struct.scm[1.1]:
Move data structures to separate file.

* xml/xml-parser.scm[1.1]:
Initial revision.

* star-parser/Attic/buffer.scm[1.7]:
Fix typo.

2001-07-02 Chris Hanson <[email protected]>

* star-parser/matcher.scm[1.11], star-parser/parser.scm[1.15]:
Don't lift Scheme expressions up to the top of the procedure; evaluate
them in place. Eliminate DEFAULT in favor of new VALUES.

* runtime/pp.scm[14.42]:
Fix bug: pretty printer was getting SIGSEGV when printing very deeply
nested named let.

* star-parser/load.scm[1.4], star-parser/matcher.scm[1.10],
star-parser/parser.pkg[1.5], star-parser/parser.scm[1.14]:
Completely reorganize the language preprocessors, so that they are no
longer monolithic procedures. Also lay the code out differently so
that it is broken into two major segments: the preprocessor and the
code generator.

* star-parser/shared.scm[1.8]:
Fix bug: unfinished change to BACKTRACK-TO.

* star-parser/matcher.scm[1.9], star-parser/parser.scm[1.13],
star-parser/shared.scm[1.7]:
Replace WITH-CURRENT-POINTER and NO-POINTERS with new procedure
CALL-WITH-UNKNOWN-POINTER. Change all references from "pointers" to
"pointer", since it's better to think of this as a single pointer.
(The delayed backtracking feature is an implementation detail, so it
shouldn't be reflected in the name.) Rename NEW-BACKTRACK-POINTER to
BACKTRACK-TO. Rename CURRENT-POINTER to POINTER-REFERENCE.

* star-parser/matcher.scm[1.8], star-parser/parser.scm[1.12],
star-parser/shared.scm[1.6]:
Rework handling of the pointers. There were some subtle bugs in the
implementation that could have caused incorrect code generation. This
code looks good but is still a bit confusing; I may not have it right
yet. This code isn't yet tested.

* microcode/x11base.c[1.77]:
Implement new primitive X-SET-DEFAULT-FONT.

* edwin/edwin.pkg[1.273], edwin/xcom.scm[1.18]:
Add new command M-x set-default-font.

* microcode/configure.in[11.13]:
Restructure crypto, gdbm, and curses tests to depend on existence of
appropriate header files as well as the library files. The presence
of the library file is no guarantee that we have the headers.

2001-06-30 Chris Hanson <[email protected]>

* star-parser/load.scm[1.3], star-parser/matcher.scm[1.7],
star-parser/parser.scm[1.11]:
Add ability to specify macros that are symbols rather than forms.
These expand to fixed parser sequences.

* star-parser/load.scm[1.2], star-parser/matcher.scm[1.6],
star-parser/parser.pkg[1.4], star-parser/parser.scm[1.10],
star-parser/shared.scm[1.5]:
Add WITH-POINTER to both parser and matcher languages. Also implement
macros for both languages.

* star-parser/Attic/buffer.scm[1.6]:
Make sure that line number is properly updated.

2001-06-29 Chris Hanson <[email protected]>

* star-parser/Attic/buffer.scm[1.5], star-parser/Attic/buffer.scm[1.4],
star-parser/Attic/buffer.scm[1.3], star-parser/Attic/buffer.scm[1.2],
star-parser/ed-ffi.scm[1.2], star-parser/parser.pkg[1.3]:
* Track the line number of the current buffer position, so that error
messages can refer to the line. Change representation of buffer
pointers to include the line number. Add operation to generate a
string that shows the line number and character number of either a
given pointer or the current position.

* Eliminate DECREMENT-PARSER-BUFFER-POINTER, which was unused and
makes implementing the line number more difficult.

* Add -NO-ADVANCE versions of procedures that match single characters.

* Change terminology: the index of the current character in the buffer
is called a "position". The word "pointer" is reserved to refer to
pointer objects that are handed to the users, which themselves refer
to positions.

2001-06-27 Chris Hanson <[email protected]>

* star-parser/matcher.scm[1.5], star-parser/parser.scm[1.9]:
Eliminate compiler warnings.

* star-parser/parser.scm[1.8]:
Fix code-generation bug in MATCH element.

2001-06-26 Chris Hanson <[email protected]>

* star-parser/parser.scm[1.7]:
Fix a couple of code-generation bugs.

* star-parser/shared.scm[1.4]:
Add some more optimizers.

* star-parser/parser.scm[1.6], star-parser/parser.scm[1.5]:
Fix two compiler warnings.

* star-parser/matcher.scm[1.4], star-parser/matcher.scm[1.3],
star-parser/parser.scm[1.4], star-parser/parser.scm[1.3],
star-parser/shared.scm[1.3]:
Lots of hair to allow explicit character-set specifications to be
compiled at load time rather than at run time.

* star-parser/matcher.scm[1.2], star-parser/parser.scm[1.2]:
Change name of language-shifting expression to SEXP.

* star-parser/test-parser.scm[1.2]:
Must attempt to parse number before attempting identifier. Otherwise,
the number's sign might be parsed as an identifier.

* star-parser/shared.scm[1.2]:
Fix problem with optimizer: needed to add notion of default rules that
are used when a more specific pattern isn't available. Also,
generalize OPTIMIZE-GROUP-EXPRESSION so that it can be used by
VECTOR-APPEND.

* star-parser/parser.pkg[1.2]:
Add missing bindings.

* star-parser/Attic/buffer.scm[1.1], star-parser/Attic/synchk.scm[1.1],
star-parser/compile.scm[1.1], star-parser/ed-ffi.scm[1.1],
star-parser/load.scm[1.1], star-parser/matcher.scm[1.1],
star-parser/parser.pkg[1.1], star-parser/parser.scm[1.1],
star-parser/shared.scm[1.1], star-parser/test-parser.scm[1.1]:
Initial revision.

2001-06-18 Chris Hanson <[email protected]>

* edwin/schmod.scm[1.50]:
Define SCHEME-INDENT-METHOD to simplify definition of indentation.

2001-06-16 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.181]:
Don't attempt to set arbitrary flags unless the server says it's OK.

2001-06-15 Chris Hanson <[email protected]>

* runtime/rgxcmp.scm[1.115], runtime/runtime.pkg[14.370]:
Fix bug: regular-expression compiler is breaking the character-set
abstraction.

* runtime/chrset.scm[14.13], runtime/runtime.pkg[14.369],
runtime/runtime.sf[14.14], runtime/string.scm[14.43],
runtime/symbol.scm[1.5], runtime/unpars.scm[14.48]:
Change representation of character sets so that they do not satisfy
STRING?. Unfortunately, this requires a complete recompilation of the
system, since the primitives SUBSTRING-FIND-NEXT-CHAR-IN-SET and
SUBSTRING-FIND-PREVIOUS-CHAR-IN-SET were being hard-coded by the
syntaxer.

* sf/gconst.scm[4.24]:
Don't integrate the primitives SUBSTRING-FIND-NEXT-CHAR-IN-SET and
SUBSTRING-FIND-PREVIOUS-CHAR-IN-SET.

2001-06-12 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.268], imail/imail-top.scm[1.267],
imail/todo.txt[1.131]:
Start the folder-probe thread only when the folder is ONLINE, and stop
the thread when the folder is OFFLINE. Make sure that the buffer is
disassociated from it's folder when the buffer is killed.

* imail/imail-core.scm[1.144], imail/imail-file.scm[1.78],
imail/imail-imap.scm[1.180], imail/imail-rmail.scm[1.68],
imail/imail-umail.scm[1.49]:
Change OPEN-RESOURCE and CLOSE-RESOURCE so that all of their behavior
is pushed down into the type-dependent modules. (Previously, they had
some type-independent code.) This, plus one explicit call, now means
that the STATUS modification event is now consistently signalled
whenever the connection status changes.

2001-06-09 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.368]:
Forgot to export HANDLE-SUBPROCESS-STATUS-CHANGE to the socket code.

* runtime/io.scm[14.64]:
INPUT-BUFFER/READ-SUBSTRING must use generic arithmetic for indexes
into the substring, because it might be an xstring that is larger than
the fixnum range.

* imail/imail-util.scm[1.39]:
READ-SUBSTRING! can return less than the requested number of bytes.
Deal with it.

2001-06-07 Chris Hanson <[email protected]>

* edwin/filcom.scm[1.219]:
LOAD-FIND-FILE-INITIALIZATION must be re-run when the buffer's
pathname or major mode is changed.

* edwin/vc.scm[1.79], edwin/vc.scm[1.78]:
VC's state is wiped out when the workfile's buffer has it's mode
changed. Use new event EVENT:SET-BUFFER-MAJOR-MODE to reset it at
that time.

* edwin/buffer.scm[1.182]:
Add new event EVENT:SET-BUFFER-MAJOR-MODE.

2001-06-05 Chris Hanson <[email protected]>

* runtime/socket.scm[1.17]:
Fix bug: TCP-SERVER-CONNECTION-ACCEPT was blocking on the server
socket, rather than registering it for management by select.

2001-06-04 Chris Hanson <[email protected]>

* imail/imail-browser.scm[1.8]:
When reverting buffer, preserve selected resource, marked resources,
and expanded containers. When initializing buffer, select first
resource line.

* imail/imail-top.scm[1.266], imail/todo.txt[1.130]:
Select first unseen message when invoking M-x imail on a folder that
is already online.

* imail/imail.pkg[1.87]:
Rename commands to match current Dired usage.

* imail/todo.txt[1.129]:
More new notes.

* imail/imail-browser.scm[1.7]:
Implement M-x imail-browser-do-copy. Consolidate code used for copy
and rename. Write documentation strings for all commands and for the
major mode.

* imail/imail-top.scm[1.265], imail/imail-top.scm[1.264]:
Simplify usage of COPY-FOLDER.

* imail/imail-core.scm[1.143]:
Implement WITH-OPEN-RESOURCE.

* edwin/dired.scm[1.189]:
Fix minor wording problem in documentation string.

2001-06-03 Chris Hanson <[email protected]>

* imail/imail-browser.scm[1.6], imail/imail-top.scm[1.263],
imail/imail.pkg[1.86], imail/todo.txt[1.128]:
Change commands used to enter browser. Now the primary command is M-x
imail-browser-view-container (bound to ^ in all IMAIL buffers), which
browses the container of the resource being viewed in the current
buffer. This command will prompt for a container URL if given a
prefix argument.

* imail/imail-imap.scm[1.179]:
Fix bug: the container URL "imap://localhost/" had an associated
"folder" URL with the same string representation. This confused the
URL interning mechanism, which uses the string rep as the key.
Consequently only one of the URLs existed. Now, the "folder" is
represented by "imap://localhost".

* edwin/dired.scm[1.188]:
When processing marked files in a Dired buffer, update screens after
each file is processed so that the mark is appropriately removed.

* imail/imail-core.scm[1.142], imail/imail-file.scm[1.77],
imail/imail-imap.scm[1.178]:
Change CLOSE-RESOURCE so that second argument is required rather than
optional.

* imail/imail-browser.scm[1.5], imail/imail-imap.scm[1.177],
imail/todo.txt[1.127]:
Associate a connection with an open IMAP container. Add code to
browser to guarantee that the resource is closed at appropriate times.

* imail/todo.txt[1.126]:
*** empty log message ***

* imail/imail-top.scm[1.262]:
Change M-x imail-quit to use the new NO-DEFER? argument to
CLOSE-RESOURCE.

* imail/imail-core.scm[1.141], imail/imail-file.scm[1.76],
imail/imail-imap.scm[1.176]:
Add optional argument NO-DEFER? to CLOSE-RESOURCE. If this argument
is true, it tells the operation that the resource must be closed
immediately. Otherwise, the operation may defer the closure.

2001-06-02 Chris Hanson <[email protected]>

* imail/todo.txt[1.125]:
Add a few notes.

* edwin/dirunx.scm[1.13]:
Add commented-out stubs for commands to do file linking.

* edwin/xterm.scm[1.67]:
Add logic to GET-X-DISPLAY to test for existence of X primitives, and
to make sure that a display variable exists. This is necessary so
that Edwin will work on a system that doesn't have X support.

* edwin/filcom.scm[1.218]:
PROMPT-FOR-DIRECTORY should not always perform PATHNAME-AS-DIRECTORY
on its result; if the REQUIRE-MATCH? option isn't given, the result
might not be a directory. For example, Dired uses this prompt, and an
input with a wildcard file part is permissible.

* edwin/dired.scm[1.187]:
Update doc string for dired-do-copy to match Emacs.

* edwin/dired.scm[1.186], edwin/edwin.pkg[1.272]:
Eliminate variable dired-copy-preserve-time which wasn't doing anything.

* runtime/sfile.scm[14.29], runtime/sfile.scm[14.28],
runtime/sfile.scm[14.27]:
New procedures HARD-LINK-FILE and SOFT-LINK-FILE.

* imail/imail-browser.scm[1.4], imail/imail.pkg[1.85]:
Implement marked files for D and R commands (stub for C command needs
to be written). Change name of x command to M-x
imail-browser-do-flagged-delete to correspond to new name given
corresponding Emacs dired command.

* imail/imail-top.scm[1.261]:
In M-x imail-rename-folder and M-x imail-copy-folder, allow user to
specify a container for the target.

* imail/imail-top.scm[1.260]:
Add new procedure PROMPT-FOR-URL.

* runtime/socket.scm[1.16]:
Add optional HOST argument to OPEN-TCP-SERVER-SOCKET, and new
procedures HOST-ADDRESS-ANY and HOST-ADDRESS-LOOPBACK. This allows
the user to specify the network interface(s) being listened to.

* microcode/ntsock.c[1.10], microcode/os2sock.c[1.17],
microcode/uxsock.c[1.28]:
Provide missing htonl calls.

* microcode/pruxsock.c[1.20]:
Oops, that should have been CREATE-TCP-SERVER-SOCKET.

* microcode/ntsock.c[1.9], microcode/os2sock.c[1.16],
microcode/pruxsock.c[1.19], microcode/uxsock.c[1.27],
microcode/uxsock.h[1.10]:
Implement new primitives to allow finer control over how TCP server
sockets are configured:

HOST-ADDRESS-ANY
HOST-ADDRESS-LOOPBACK
CREATE_TCP_SERVER_SOCKET
BIND-TCP-SERVER-SOCKET
LISTEN-TCP-SERVER-SOCKET

2001-06-01 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.175], imail/todo.txt[1.124]:
Defer closing of connection when it is the last connection open to a
particular server. This prevents a pattern of opening and closing
that occurs when IMAIL starts up (due to probes performed prior to
opening the folder). It also allows the user to do completion in the
folder space without occurring the same penalty. The downside is that
the connection remains open for about a minute after the user "closes"
it, which will be remedied in a future revision.

2001-05-31 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.174]:
First draft of a mechanism to defer closing of connections. This
suffers from a fault: the background probe-folder thread is re-opening
the connection while it is in the deferred state.

* edwin/editor.scm[1.251], edwin/notify.scm[1.20],
imail/imail-top.scm[1.259], imail/imail-top.scm[1.258]:
Implement START-STANDARD-POLLING-THREAD and
STOP-STANDARD-POLLING-THREAD to capture standard method of using
background thread to poll for output or events.

* edwin/editor.scm[1.250]:
Add interrupt locking to REGISTER-INFERIOR-THREAD! and
DEREGISTER-INFERIOR-THREAD!. Change DEREGISTER-INFERIOR-THREAD! to
delete the entry from the list of inferior threads.

2001-05-30 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.173]:
Change how connections are allocated; when looking for a connection
for a folder, we'll now take over an existing compatible connection if
it's not being used by another folder. This will be useful after the
next change, which will cause connections to stay open a short while
after their last reference is dropped; when that happens, there will
be open connections lying around that can usefully be adopted.

2001-05-29 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.172], imail/imail-imap.scm[1.171],
imail/todo.txt[1.123]:
Eliminate IMAP-FOLDER-N-MESSAGES in favor of FOLDER-LENGTH.

* imail/imail-browser.scm[1.3], imail/imail-core.scm[1.140],
imail/imail-file.scm[1.75], imail/imail-imap.scm[1.170]:
Rename URL-IS-CONTAINER? to URL-CORRESPONDING-CONTAINER. Eliminate
requirement that the result be #F if the resource doesn't exist.

* imail/imail-imap.scm[1.169]:
Cache information returned by the IMAP LIST command. This should help
to reduce traffic on the wire.

* imail/imail.pkg[1.84]:
Don't use my private "$bscm" environment variable in public code.

* cref/cref.sf[1.12], cref/cref.sf[1.11]:
Don't use LOAD-OPTION to load cref; it probably doesn't exist on the
host system (outside of MIT), and this will cause an error if the user
has MITSCHEME_INF_DIRECTORY set.

* imail/imail-top.scm[1.257]:
Change M-x imail so that it only runs M-x imail-get-new-mail if the
folder status is OFFLINE.

* imail/imail-imap.scm[1.168]:
Restructure IMAP URLs so that each container URL has a corresponding
folder URL. The container URL inherits the components of the folder
URL rather than keeping its own copies. This sharing will be
important when we add caching of the IMAP server's LIST info.

2001-05-28 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.167]:
In IMAP-MAILBOX-DELIMITER, use the probed root as the table key;
previous strategy make no sense.

* imail/imail-imap.scm[1.166]:
Fix bug: IMAP-MAILBOX-DELIMITER was calling the LIST command on a
mailbox with a trailing slash; now the slash is omitted.

2001-05-27 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.165]:
Cache result of URL-IS-CONTAINER?, to prevent going back to network
each time it's needed. This might not actually work, since the
definition of URL-IS-CONTAINER? specifies that the corresponding
mailbox must exist.

* imail/todo.txt[1.122]:
Delete entries for things that are now implemented.

* imail/todo.txt[1.121]:
Note problem that connection to IMAP server is being opened and closed
too much.

2001-05-26 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.256]:
Fix error message of SELECTED-URL so that it makes more sense to the
end user.

* imail/imail-browser.scm[1.2]:
Eliminate compiler warning.

* imail/compile.scm[1.11], imail/ed-ffi.scm[1.14],
imail/imail-browser.scm[1.1], imail/imail.pkg[1.83],
imail/print.sh[1.9]:
Add first working draft of folder browser.

* imail/imail-top.scm[1.255]:
Change IMAIL-DEFAULT-CONTAINER to use selected URL if any. This sets
default correctly in the folder browser when point is inside an
expanded subfolder.

* imail/imail-top.scm[1.254]:
Implement SELECTED-CONTAINER-URL.

* imail/imail-core.scm[1.139]:
Change external representation of URL to use content name rather than
presentation name.

* imail/imail-top.scm[1.253]:
Fix indentation.

2001-05-25 Chris Hanson <[email protected]>

* imail/imail-core.scm[1.138], imail/imail-file.scm[1.74],
imail/imail-imap.scm[1.164], imail/imail-top.scm[1.252]:
Cache CONTAINER-URL of every URL when it is created, so that the
heirarchy can be quickly traversed.

Rename URL-IS-SELECTABLE? as FOLDER-URL-IS-SELECTABLE?.

Implement new operation URL-IS-CONTAINER? which returns the
equivalent container URL of a URL (which may be a folder URL).

* imail/imail-core.scm[1.137], imail/imail-file.scm[1.73],
imail/imail-imap.scm[1.163], imail/imail-top.scm[1.251]:
Change noun "child", used to refer to something in a container, to
"content".

2001-05-24 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.181]:
Generalize WITH-READ-ONLY-DEFEATED to accept anything that ->BUFFER
can resolve to a buffer.

* imail/imail-imap.scm[1.162]:
Don't echo server's mailbox name to the user.

* edwin/dired.scm[1.185]:
Include full key bindings in mode help.

* imail/imail-imap.scm[1.161]:
Fix CONTAINER-URL-CONTENTS to return container URLs when appropriate.

* edwin/struct.scm[1.95]:
Fix bug in previous change: was using procedures that returned marks
when I expected indexes.

* imail/imail-core.scm[1.136]:
Add some more resource->URL reflectors.

* imail/imail-core.scm[1.135], imail/imail-file.scm[1.72],
imail/imail-imap.scm[1.160], imail/imail-top.scm[1.250]:
Simplify meaning of CONTAINER-URL; it no longer does anything special
for IMAP URLs. Define new operation CONTAINER-URL-FOR-PROMPT that has
the behavior that CONTAINER-URL used to.

Implement new operation URL-CHILD-NAME which is now the complement to
CONTAINER-URL. These operations now return compatible halves of the
URL, which may be recombined using MAKE-CHILD-URL to obtain the
original URL.

Change implementation of URL-PRESENTATION-NAME; it now just calls
URL-CHILD-NAME, stripping a slash off the end if present.

Clarify definition of URL-BASE-NAME.

Revert CONTAINER-CONTENTS back to CONTAINER-URL-CONTENTS. Maybe
tomorrow I'll change my mind again.

* imail/imail-top.scm[1.249]:
Regularize the names of the procedures that manage the selected
container and selected URL. Move these and SELECT-FOLDER to the same
page.

* imail/imail-core.scm[1.134]:
Change GET-MEMOIZED-RESOURCE to accept an optional argument specifying
that it is an error if there is no associated resource.

* imail/imail-core.scm[1.133], imail/imail-core.scm[1.132],
imail/imail-core.scm[1.131], imail/imail-file.scm[1.71],
imail/imail-imap.scm[1.159], imail/imail-rmail.scm[1.67],
imail/imail-top.scm[1.248], imail/imail-umail.scm[1.48]:
Rename the following server operations, then add methods to them to
support containers as well as folders:

create-folder => create-resource
delete-folder => delete-resource
rename-folder => rename-resource

* imail/imail-core.scm[1.130]:
Add a handful of methods to allow containers to be used in place of
container URLs in operations where it seems useful.

* imail/imail-top.scm[1.247]:
Don't use history value as default for source of M-x
imail-rename-folder and M-x imail-copy-folder.

* imail/imail-top.scm[1.246]:
Fix a few minor bugs from the recent changes.

2001-05-23 Chris Hanson <[email protected]>

* imail/imail-core.scm[1.129], imail/imail-file.scm[1.70],
imail/imail-imap.scm[1.158], imail/imail-rmail.scm[1.66],
imail/imail-top.scm[1.245], imail/imail-umail.scm[1.47]:
Generalize folder operations:

open-folder => open-resource
close-folder => close-resource
save-folder => save-resource

Add methods to each of these renamed operations so that they can
handle containers.

* imail/imail-core.scm[1.128], imail/imail-file.scm[1.69],
imail/imail-imap.scm[1.157]:
Eliminate CONTAINER-URL-CONTENTS in favor of CONTAINER-CONTENTS.

* imail/imail-core.scm[1.127], imail/imail-file.scm[1.68],
imail/imail-imap.scm[1.156], imail/imail-top.scm[1.244]:
Rename URL-CONTAINER to CONTAINER-URL to better reflect its meaning.

* imail/imail-core.scm[1.126]:
Fix bug in previous change: the object being modified is the
container, not the URL for the container.

* imail/imail-core.scm[1.125], imail/imail-file.scm[1.67],
imail/imail-imap.scm[1.155], imail/imail-rmail.scm[1.65],
imail/imail-summary.scm[1.42], imail/imail-top.scm[1.243],
imail/imail-umail.scm[1.46]:
Generalize implementations of properties and modification events so
that they can be mixed in to arbitrary classes. Simplify property
implementation to use an alist. This saves 4 words of memory, which
is important for message objects.

Create generalized resources, which are the referents of URLs. Use
these as the base for folders, and create a new container type.

Change CREATE-FOLDER, DELETE-FOLDER, RENAME-FOLDER, and APPEND-MESSAGE
to signal appropriate events to the container of the folders being
manipulated. This will allow folder browsers to automatically update
themselves as their contents are changed.

Add hooks to folder and container prompts, which allow the folder
browser to use some of the standard server commands. The browser
can supply the appropriate URL string without prompting.

Don't let M-x imail-copy-folder copy from a folder to itself.

* imail/todo.txt[1.120]:
Note that RENAME-FOLDER must change the URL the target folder refers
to.

2001-05-22 Chris Hanson <[email protected]>

* edwin/struct.scm[1.94]:
Implement WITHOUT-TEXT-CLIPPED.

* runtime/make.scm[14.69], runtime/runtime.pkg[14.367]:
Duh. Can't delete DOS pathname support; that is used by Win32 and
OS/2.

* microcode/ntio.c[1.24]:
Fix longstanding bug: must send WM_PAINT after SCREEN_WRITE so that
messages appear on screen even when no input is being read.

* microcode/ntfs.c[1.28]:
Fix thinko in previous change.

2001-05-21 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.242]:
Fix bug: missing alternative in conditional was causing prompt to have
random default value.

2001-05-18 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.154]:
Change IMAP-URL-SERVER-MAILBOX to accept container URLs and strip the
trailing delimiter off of them.

* imail/imail.pkg[1.82]:
Add package for folder browser.

* imail/imail-summary.scm[1.41]:
Fix typo in previous change.

* imail/imail-top.scm[1.241]:
Change M-x imail-delete-message to accept a prefix argument, which
means to repeat just like imail-delete-forward.

* imail/imail-summary.scm[1.40]:
In REBUILD-IMAIL-SUMMARY-BUFFER, SELECTED-FOLDER can return #F, but
the code wasn't allowing for that possibility.

* imail/imail-top.scm[1.240]:
If ERROR? argument to SELECTED-FOLDER and SELECTED-MESSAGE is false,
don't signal an error even if the associated property isn't bound.
The old behavior has caused too many problems in weird places, and has
no real benefits.

* edwin/curren.scm[1.144]:
Implement RUN-BUFFER-HOOKS to capture code that runs the hooks list.
Fix potential problem by copying the hooks list.

2001-05-17 Chris Hanson <[email protected]>

* imail/imail-core.scm[1.124]:
Eliminate legacy file URL protocol names. These can only cause
confusion when writing to output files that don't already exist.

* imail/imail-core.scm[1.123], imail/imail-file.scm[1.66],
imail/imail-imap.scm[1.153], imail/imail-rmail.scm[1.64],
imail/imail-top.scm[1.239], imail/imail-umail.scm[1.45]:
Eliminate MAKE-PEER-URL in favor of MAKE-CHILD-URL.

* imail/imail-imap.scm[1.152]:
Split the IMAP URL type into two types: one for IMAP folders, and the
other for IMAP containers. The two are distinguished solely by the
form of their mailbox names: a trailing slash (or null mailbox) means
it's a container, otherwise it's a folder.

2001-05-15 Chris Hanson <[email protected]>

* imail/imail-core.scm[1.122], imail/imail-file.scm[1.65],
imail/imail-imap.scm[1.151], imail/imail-rmail.scm[1.63],
imail/imail-umail.scm[1.44], imail/imail-util.scm[1.38]:
New operation CONTAINER-URL-CONTENTS.

Reimplemented URL-IS-SELECTABLE? for file folders. New implementation
probes the file to determine if it is a known type.

File-folder completion now only considers files of known type and
directories. It also doesn't consider "." and ".." directories.

Code that mapped IMAP heirarchy delimiters was broken, although this
caused no practical consequences. It has been reimplemented to make
it both correct and simpler.

IMAP-folder completion used to probe subfolders of a folder to
determine if a folder should have a "/" at the end. This was wasteful
of network bandwidth and had no practical consequences, so it has been
changed to not do this.

2001-05-14 Chris Hanson <[email protected]>

* imail/imail-util.scm[1.37]:
Restructure directory-reading code to clean up the interface a bit.

2001-05-13 Chris Hanson <[email protected]>

* imail/imail-core.scm[1.121], imail/imail-file.scm[1.64],
imail/imail-imap.scm[1.150], imail/imail-rmail.scm[1.62],
imail/imail-top.scm[1.238], imail/imail-umail.scm[1.43]:
* Implement container URLs, which are separate from folder URLs.
These are implemented as directories for file-based folders. IMAP
folders are also containers.

* Eliminate URL-CONTAINER-STRING; now there is URL-CONTAINER that
returns a container URL.

* Rename URL-SELECTABLE? to URL-IS-SELECTABLE?.

* Eliminate "rmail" and "umail" protocols in favor of "file". This
now covers both Rmail and unix-mail folders, as well as directories.
The actual file type is determined by probing the first few bytes of
the file for known patterns. The names "rmail" and "umail" are now
treated as equivalent to "file" for upwards compatibility.

* Change prompting code in front end so that it is possible to specify
that the returned folder satisfies URL-IS-SELECTABLE?. Also add a
procedure to prompt for a container.

2001-05-12 Chris Hanson <[email protected]>

* edwin/filcom.scm[1.217], edwin/print.scm[1.20],
imail/imail-util.scm[1.36], runtime/dosdir.scm[1.10],
runtime/unxdir.scm[14.12]:
Use new predicate DIRECTORY-PATHNAME? to replace various ad-hoc
mechanisms previously used to detect the same thing.

* runtime/dospth.scm[1.41], runtime/pathnm.scm[14.34],
runtime/runtime.pkg[14.366], runtime/unxpth.scm[14.26]:
Implement DIRECTORY-PATHNAME?. Change implementation of
DIRECTORY-PATHNAME and FILE-PATHNAME to be host-specific.

2001-05-10 Chris Hanson <[email protected]>

* edwin/filcom.scm[1.216]:
Minor code clean-up for FILENAME-COMPLETE-STRING.

* edwin/autosv.scm[1.34], edwin/dired.scm[1.184],
edwin/filcom.scm[1.215], edwin/fileio.scm[1.154],
edwin/utils.scm[1.48], edwin/vc.scm[1.77]:
Simplify CATCH-FILE-ERRORS so that the error-handling procedure always
gets the condition as an argument.

* imail/imail-file.scm[1.63]:
Fix bug: don't merge name of default pathname into partial URL string.

* runtime/sfile.scm[14.26]:
Fix bug: FILE-SYMBOLIC-LINK? is supposed to return the link contents
if the result is true. My rewrite returned #t in that case.

* edwin/prompt.scm[1.196]:
Fix thinko in previous fix.

2001-05-09 Chris Hanson <[email protected]>

* edwin/dired.scm[1.183]:
Fix bug in M-x dired-create-directory: PROMPT-FOR-DIRECTORY recently
changed so that it always returns the result as a directory pathname
with no file part. The code here was assuming that the name part was
always present.

* edwin/prompt.scm[1.195]:
In PROMPT-FOR-STRING-TABLE-NAME, verifier must no assume that
STRING-TABLE-GET will return false value only when key isn't in table.

* imail/imail-core.scm[1.120], imail/imail-file.scm[1.62],
imail/imail-imap.scm[1.149]:
Add new procedure URL-SELECTABLE?.

* runtime/sfile.scm[14.25]:
Implement FILE-REGULAR?.

* runtime/ntprm.scm[1.36], runtime/os2prm.scm[1.47],
runtime/sfile.scm[14.24], runtime/unxprm.scm[1.61]:
Implement new procedures FILE-TYPE-DIRECT and FILE-TYPE-INDIRECT.
Several procedures in the OS-dependent files were identical for all
operating-systems; move them to "sfile.scm".

* microcode/ntfs.c[1.27], microcode/ntfs.h[1.5],
microcode/os2fs.c[1.13], microcode/osfs.h[1.10],
microcode/prntfs.c[1.17], microcode/prosfs.c[1.16],
microcode/uxfs.c[1.21]:
Implement new primitives FILE-TYPE-DIRECT and FILE-TYPE-INDIRECT.

* runtime/make.scm[14.68], runtime/make.scm[14.67],
runtime/runtime.pkg[14.365]:
Delete DOS stuff.

2001-05-08 Chris Hanson <[email protected]>

* edwin/prompt.scm[1.194]:
Fix problem: COMPLETE-INPUT-STRING should not return NO-MATCH when
VERIFY-FINAL-VALUE fails on an exact match, because this match might
not be the final value. Instead, just do the verification and return
the information to the caller.

2001-05-07 Chris Hanson <[email protected]>

* edwin/prompt.scm[1.193]:
Change logic to retain REQUIRE-MATCH? option for later use when
verifying values.

* edwin/prompt.scm[1.192]:
Revert broken change to VERIFY-FINAL-VALUE.

* edwin/filcom.scm[1.214]:
Change directory prompts to be more regular.

* imail/load.scm[1.27]:
Update version number to reflect changes.

* imail/todo.txt[1.119]:
Add note about implementation of FOLDER-LENGTH for IMAP folders.
Remove note about URL-EXISTS? which is now implemented.

* imail/imail-core.scm[1.119]:
Don't unmemoize a folder when URL-EXISTS? signals an error; it might
be a transitory error.

It's not obvious to me that we need to unmemoize here. Maybe we
should just delete the call to URL-EXISTS? altogether.

* imail/imail-top.scm[1.237]:
VERIFY-FINAL-VALUE is always executed in a context that handles
errors, so there's no need for us to do this.

* imail/imail-imap.scm[1.148]:
Change URL-EXISTS? to use the LIST command, and to filter out NOSELECT
mailboxes.

* edwin/prompt.scm[1.191]:
Attempt to get VERIFY-FINAL-VALUE to work correctly for completing
reads. It appears to be used for two different things; perhaps we
need to redesign this.

* edwin/compile.scm[1.14]:
Compilations must use a PTY so that kill-compilation can work.

2001-05-04 Chris Hanson <[email protected]>

* imail/todo.txt[1.118]:
URL-EXISTS? should not use IMAP STATUS command.

2001-05-03 Chris Hanson <[email protected]>

* microcode/uxproc.c[1.27]:
Fix problem that crops up when compiling on OpenBSD.

2001-04-30 Chris Hanson <[email protected]>

* etc/optiondb.scm[1.7], etc/optiondb.scm[1.6]:
Fix bug: previous loader depended on MITSCHEME_INF_DIRECTORY being
set. I used to set this and didn't notice, but these days I don't set
it.

2001-04-15 Chris Hanson <[email protected]>

* configure.in[1.3], microcode/configure.in[11.12]:
Add option to preserve timestamps when installing programs, if the
install program supports it.

* imail/imail-top.scm[1.236], imail/todo.txt[1.117]:
Fix bug: toggling of raw headers and raw body should be more separate.

* imail/todo.txt[1.116]:
Add item re M-x imail-toggle-header affecting body presentation.

2001-04-11 Chris Hanson <[email protected]>

* edwin/sendmail.scm[1.78]:
Revert previous change -- it's not so simple.

* edwin/sendmail.scm[1.77]:
Allow attachments to have MESSAGE type.

* imail/imail-top.scm[1.235], imail/todo.txt[1.115]:
Fix bug: must preserve MIME headers in forwarded messages, otherwise
the encapsulated message won't be interpreted correctly by the
receiver.

* edwin/sendmail.scm[1.76]:
Fix bug: header names are case-insensitive.

2001-04-10 Chris Hanson <[email protected]>

* microcode/uxenv.c[1.21]:
Add call to tzset to initialize _timezone if building under cygwin.

* microcode/configure.in[11.11]:
Add test for _timezone variable, needed for cygwin. Change preference
of timezone variables to this order: __timezone, _timezone, timezone.

* imail/todo.txt[1.114]:
Add item about forwarded MIME messages. Add note about possible fix
for network wedging.

2001-04-09 Chris Hanson <[email protected]>

* imail/todo.txt[1.113]:
Add suggestion from hal to allow sorting of summary buffer.

2001-04-03 Chris Hanson <[email protected]>

* microcode/uxio.c[1.46], microcode/version.h[11.180]:
Fix bug: examination of results from `poll' was ignoring file
descriptors on which there were error conditions but no input.

* runtime/thread.scm[1.34]:
Always start the thread timer when there are any input registrations.
The timer is necessary even if no threads are currently running.

2001-03-21 Chris Hanson <[email protected]>

* edwin/make.scm[3.108], runtime/version.scm[14.195]:
Update version to reflect recent changes.

* edwin/abbrev.scm[1.6], edwin/autold.scm[1.57],
edwin/comman.scm[1.85], edwin/comtab.scm[1.72],
edwin/debug.scm[1.56], edwin/modes.scm[1.34], edwin/modlin.scm[1.23],
edwin/process.scm[1.59], edwin/rmail.scm[1.72],
edwin/schmod.scm[1.49], edwin/sendmail.scm[1.75],
edwin/xterm.scm[1.66], runtime/Attic/syntax.scm[14.33],
runtime/dbgutl.scm[14.19], runtime/gensym.scm[14.6],
runtime/infstr.scm[1.10], runtime/infutl.scm[1.64],
runtime/pp.scm[14.41], runtime/uerror.scm[14.47],
runtime/unpars.scm[14.47], runtime/unsyn.scm[14.21]:
Change many references of SYMBOL->STRING to use SYMBOL-NAME instead.
These are all situations where copying the returned string is
unnecessary and wasteful.

* runtime/io.scm[14.63], runtime/output.scm[14.23]:
Allow WRITE-SUBSTRING output-port operation to accept external
strings.

* runtime/dbgutl.scm[14.18], runtime/emacs.scm[14.29],
runtime/infutl.scm[1.63], runtime/krypt.scm[1.12],
runtime/ntprm.scm[1.35], runtime/os2graph.scm[1.18],
runtime/os2prm.scm[1.46], runtime/rgxcmp.scm[1.113],
runtime/strout.scm[14.15]:
Use SUBSTRING-MOVE! in preference to SUBSTRING-MOVE-LEFT! and
SUBSTRING-MOVE-RIGHT!.

* runtime/string.scm[14.41]:
Further optimize string-copying code.

* runtime/rgxcmp.scm[1.114], runtime/string.scm[14.42],
runtime/string.scm[14.40]:
Fix typo.

2001-03-20 Chris Hanson <[email protected]>

* imail/imail-rmail.scm[1.61]:
Minimize consing in READ-RMAIL-ATTRIBUTES-LINE.

2001-03-19 Chris Hanson <[email protected]>

* imail/imail-file.scm[1.61], imail/imail-rmail.scm[1.60],
imail/imail-umail.scm[1.42]:
Change file folders to store their messages in a vector rather than a
list. The linear-time lookup was killing performance on large
folders.

* imail/imail-rmail.scm[1.59]:
Slow down the progress messages a bit; the parsing is now fast enough
that we were doing too much work updating the screen.

* imail/imail-util.scm[1.35]:
Add DISCARD-CHARS and READ-STRING operations to xstring input port.
Change SKIP-TO-LINE-START to use DISCARD-CHARS.

* imail/imail-rmail.scm[1.58]:
Fix problem: there's not necessarily a blank line between the
alternate headers and the separator line.

* runtime/string.scm[14.39]:
Add LENGTH member to external-string structure. It turns out that
it's important that fetching the length be fast.

* imail/imail-rmail.scm[1.57]:
Fix thinko in previous change.

* imail/imail-util.scm[1.34]:
Add support for DISCARD-CHAR operation.

* imail/imail-file.scm[1.60], imail/imail-rmail.scm[1.56],
imail/imail-umail.scm[1.41], imail/imail-util.scm[1.33]:
Extend use of external-string storage to all file folders. Don't
pre-compute message headers; compute them on the fly from the external
string when needed.

* imail/imail-top.scm[1.234]:
Generalize IMAIL-UI:PROGRESS-METER to be able to show progress when
total number of items isn't known. Memoize value computed by
COUNT-UNSEEN-MESSAGES, to speed up navigation in very large folders.

* imail/imail-core.scm[1.118], imail/imail.pkg[1.81]:
Move MESSAGE-TIME into core.

2001-03-18 Chris Hanson <[email protected]>

* imail/imail-rmail.scm[1.55], imail/imail-rmail.scm[1.54],
imail/imail-rmail.scm[1.53], imail/imail-util.scm[1.32],
imail/load.scm[1.26]:
Change implementation of Rmail folders to keep a copy of the Rmail
file in an external string, and to refer to the message bodies using
index pairs into the string. This change should allow Scheme to
handle much larger Rmail folders.

2001-03-16 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.271], edwin/sendmail.scm[1.74],
edwin/snr.scm[1.60]:
Rewrite to generate the finished message into a temporary file rather
than a buffer. This allows the sending of attachments that are too
large to fit into memory.

Also rework the attachment interface slightly to simplify the choices
presented to the user when the MIME type of a file can't be determined
automatically.

* runtime/unxprm.scm[1.60]:
Make sure temporary files aren't readable or writeable by anyone other
than the owner.

* edwin/make.scm[3.107], runtime/version.scm[14.194]:
Update for next release.

* runtime/option.scm[14.37], runtime/runtime.pkg[14.364]:
Rewrite debugging-info directory on option files; they are sometimes
loaded while building the system but must refer to debugging info in
it's installed location.

2001-03-15 Chris Hanson <[email protected]>

* edwin/schmod.scm[1.48]:
Add more CALL-WITH-*-FILE entries to indentation table.

* runtime/fileio.scm[1.19], runtime/runtime.pkg[14.363],
runtime/runtime.pkg[14.362]:
Implement CALL-WITH-APPEND-FILE and CALL-WITH-BINARY-APPEND-FILE.

* edwin/edwin.pkg[1.270]:
Export RUN-SYNCHRONOUS-PROCESS-1.

2001-03-11 Chris Hanson <[email protected]>

* edwin/debian-changelog.scm[1.5]:
Fix the value of fill-prefix in debian-changelog mode.

2001-03-09 Chris Hanson <[email protected]>

* microcode/configure.in[11.10], microcode/configure.in[11.9],
microcode/makegen/Makefile.in.in[1.16], microcode/prbfish.c[1.12],
microcode/prmcrypt.c[1.3], microcode/prmd5.c[1.7],
microcode/prmhash.c[11.3]:
Generalize handling of modules. Generate position-independent code
for modules.

2001-03-08 Chris Hanson <[email protected]>

* runtime/load.scm[14.57]:
Handle case where "lib" directory doesn't exist.

* runtime/blowfish.scm[1.23], runtime/crypto.scm[14.13]:
Add code to allow the crypto primitives to be dynamically loaded.

* runtime/load.scm[14.56], runtime/runtime.pkg[14.361]:
Implement LOAD-LIBRARY-OBJECT-FILE for loading primitives that are
implemented as dynamically-loaded shared libraries.

* runtime/uerror.scm[14.46], runtime/version.scm[14.193]:
Add interface to new generic error-signalling mechanism. Requires
microcode 14.3 or later.

* microcode/utils.c[9.78], microcode/utils.c[9.77]:
Fix problem that broke upwards compatibility.

* microcode/makegen/Makefile.in.in[1.15]:
Fix typo.

* microcode/pruxdld.c[1.14]:
Major cleanup: eliminate dead code from HP-UX and AIX; simplify
interfaces; generate meaningful errors when possible using new
error-signalling mechanism.

* microcode/avltree.c[1.5], microcode/avltree.h[1.4],
microcode/debug.c[9.52], microcode/extern.c[9.38],
microcode/findprim.c[9.55], microcode/prim.h[9.46],
microcode/primutl.c[9.74], microcode/usrdef.h[9.44]:
Export `declare_primitive' and `install_primitive' in "usrdef.h".
Change declaration of name and doc-string elements to be `const'.

* microcode/errors.h[9.43], microcode/prims.h[9.48],
microcode/utabmd.scm[9.78], microcode/utils.c[9.76]:
Add mechanism to allow signalling an error with an arbitrary Scheme
object as an argument.

* microcode/extern.h[9.59], microcode/extern.h[9.58],
microcode/string.c[9.44], microcode/string.c[9.43],
microcode/string.c[9.42]:
Add procedures to allocate strings without garbage collecting.

* microcode/configure.in[11.8], microcode/makegen/Makefile.in.in[1.14],
microcode/prbfish.c[1.11], microcode/prmcrypt.c[1.2],
microcode/prmd5.c[1.6], microcode/prmhash.c[11.2],
microcode/version.h[11.179]:
Add support for loading crypto code as shared libraries. This allows
a package to be distributed that will work even if the target machine
doesn't have the required libraries installed. It also allows us to
leave MIT Scheme in Debian's "main" section while still providing
crypto support.

2001-03-03 Chris Hanson <[email protected]>

* microcode/acconfig.h[11.4], microcode/configure.in[11.7],
microcode/tterm.c[1.12]:
Don't even try to use <termcap.h>. If we're using ncurses, don't
override the definitions in <term.h>, but do supply definitions for
things not defined there. Add abstract speed_t type, which is defined
in recent <termios.h> files.

* microcode/terminfo.c[1.7]:
Fix typo in previous edit.

* microcode/tterm.c[1.11]:
Don't use <termcap.h> for ncurses; instead use <curses.h> and <term.h>
as specified in the documentation (doh!). Hopefully this will
eliminate the problem on RH7.

* microcode/terminfo.c[1.6]:
Rewrite procedure to provide proper ANSI prototype.

2001-03-02 Chris Hanson <[email protected]>

* microcode/acconfig.h[11.3], microcode/configure.in[11.6],
microcode/tterm.c[1.10]:
Add extra compile-time flag to specify whether libncurses defines the
`tparam' procedure.

2001-03-01 Chris Hanson <[email protected]>

* microcode/ntutl/config.h[1.4], microcode/os2utl/config.h[1.3]:
Win32 and OS/2 need to include headers for blowfish and md5.

* edwin/paths.scm[1.16]:
Fix thinko in previous edit.

* microcode/acconfig.h[11.2], microcode/configure.in[11.5],
microcode/prbfish.c[1.10], microcode/prmd5.c[1.5]:
Add support for OpenSSL.

* microcode/tterm.c[1.9]:
Fix compilation errors from previous edit.

* runtime/blowfish.scm[1.22]:
Don't use mcrypt for Blowfish; it provides 8-bit CFB and our original
code provides 64-bit CFB.

2001-02-28 Chris Hanson <[email protected]>

* microcode/configure.in[11.4], microcode/prmcrypt.c[1.1],
runtime/blowfish.scm[1.21], runtime/crypto.scm[14.12],
runtime/runtime.pkg[14.360], runtime/version.scm[14.192]:
Add support for mcrypt library.

* microcode/makegen/files-optional.scm[1.3]:
Add mcrypt support.

* microcode/version.h[11.178]:
Updates to support dynamic linking and mcrypt.

* edwin/info.scm[1.136], edwin/make.scm[3.106], edwin/paths.scm[1.15]:
Don't require existence of private Info directory.

* microcode/tterm.c[1.8], microcode/tterm.c[1.7]:
Use <termcap.h> to define termcap interface, if available. Some
recent versions of ncurses appear to have changed the interface.

* microcode/terminfo.c[1.5]:
Eliminate unnecessary compiler warnings.

2001-02-27 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.113], edwin/intmod.scm[1.112],
edwin/intmod.scm[1.111]:
Fix standard prompt spacing so that it appears properly in a
transcript file.

* runtime/rep.scm[14.56]:
Don't explicitly bind the standard I/O ports; let them all default to
the cmdl port.

* runtime/port.scm[1.20]:
Change current I/O ports to default to cmdl port, as is done with
other ports.

* runtime/emacs.scm[14.28]:
Fix initialization of console port: must notice when standard I/O
ports are encapsulations of the console port.

2001-02-24 Chris Hanson <[email protected]>

* microcode/option.c[1.56]:
Fix logic used to select the default band. It wasn't working
correctly when there was only one band.

2001-02-23 Chris Hanson <[email protected]>

* README.txt[1.2]:
Tweak punctuation.

2001-02-13 Chris Hanson <[email protected]>

* edwin/debian-changelog.scm[1.4], edwin/loadef.scm[1.45]:
Move debian-changelog-mode-hook into "loadef.scm".

2001-02-12 Chris Hanson <[email protected]>

* microcode/bchdmp.c[9.88], microcode/bchgcl.c[9.52]:
Fix fencepost error in handling of linkage sections.

2001-02-11 Chris Hanson <[email protected]>

* runtime/x11graph.scm[1.51]:
Coerce all coordinate arguments to flonums. This allows ratnums and
recnums to be used for these arguments.

* runtime/fixart.scm[1.6]:
Implement ->FLONUM operation to coerce real numbers to flonums.

2001-02-08 Chris Hanson <[email protected]>

* runtime/mime-codec.scm[14.9]:
Add state to look for line starting with NON-BASE64 character, and
stop decoding there. This works around problem that arises when
mail-processing agents (e.g. mailman) randomly glue text on the end of
a MIME message.

2001-02-06 Chris Hanson <[email protected]>

* edwin/debian-changelog.scm[1.3]:
Forgot to supply buffer in which to do local variable bindings.

* edwin/Makefile.in[1.4], edwin/fileio.scm[1.153]:
New code to do Debian changelogs.

2001-02-05 Chris Hanson <[email protected]>

* edwin/debian-changelog.scm[1.2], edwin/loadef.scm[1.44]:
Add command debian-changelog-mode. Fix bugs; code now appears to work.

* runtime/rgxcmp.scm[1.112]:
Grumble. Messing around while debugging problems caused by
incorrectly built bands.

* runtime/rgxcmp.scm[1.111]:
Reengineer compilation of character set notation.

* runtime/chrset.scm[14.12]:
CHAR-SET:NOT-01 must be first set defined so that error checks on
other calls will work right.

* edwin/debian-changelog.scm[1.1], edwin/decls.scm[1.70],
edwin/ed-ffi.scm[1.51], edwin/edwin.pkg[1.269],
edwin/loadef.scm[1.43]:
New code to do Debian changelogs.

* imail/imap-response.scm[1.43]:
CHAR-SET:NOT-NUMERIC now defined by runtime system.

* edwin/utils.scm[1.47]:
CHAR-SET:NOT-GRAPHIC now defined by runtime system.

* runtime/chrset.scm[14.11], runtime/runtime.pkg[14.359]:
Add inversions for all standard character sets.

* edwin/buffer.scm[1.180], edwin/edwin.pkg[1.268],
edwin/regexp.scm[1.75], edwin/sendmail.scm[1.73]:
Update copyright dates.

* edwin/edwin.pkg[1.267], edwin/regexp.scm[1.74]:
New procedure RE-MATCH-EXTRACT-STRING.

* edwin/edwin.pkg[1.266], edwin/sendmail.scm[1.72]:
Add procedures to access the user's email-address info.

2001-01-29 Chris Hanson <[email protected]>

* runtime/crypto.scm[14.11]:
Allow names vectors to be sparse. Newer versions of mhash don't use
the index space densely.

2001-01-26 Chris Hanson <[email protected]>

* edwin/txtprp.scm[1.23]:
KEY<? must be able to handle Edwin variables as well as symbols.

2001-01-25 Chris Hanson <[email protected]>

* edwin/txtprp.scm[1.22]:
Allow keys to be Edwin variables too.

* edwin/buffer.scm[1.179]:
Allow a variable value to be stored in a region as a text property.

* imail/imail-top.scm[1.233]:
Add command imail-toggle-wrap-entity. Change all toggle commands to
be under C-c C-t.

2001-01-24 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.232]:
Use new MIME-BODY-ENCLOSED? and SPECIFIC-PROPERTY-REGION to properly
compute the buffer region associated with a compound MIME entity. The
problem is that the IMAIL-MIME-INFO text property associated with
parts of the region will be that of subentities of the entity, so it's
necessary to use the enclosure information to determine this.

* imail/imail-core.scm[1.117], imail/imail-core.scm[1.116],
imail/imail-imap.scm[1.147]:
Modify mime-body datatypes to have a pointer to the enclosing entity.

* edwin/simple.scm[1.54]:
Generalize SPECIFIC-PROPERTY-REGION to allow the user to supply an
equivalence predicate.

* imail/imail-top.scm[1.231]:
Don't bind mouse commands to entity regions; just use single global
binding.

* imail/imail-top.scm[1.230]:
When attaching MIME info to a region, don't overwrite sub-regions that
already have MIME info attached.

* edwin/simple.scm[1.53]:
Change REGION-PUT! to allow it to specify the optional argument to ADD-TEXT-PROPERTY.

* edwin/txtprp.scm[1.21]:
Add optional argument to ADD-TEXT-PROPERTY that allows it to add the
property to a region without overwriting any existing sub-regions in
which the property is already bound. Also: invert sense of predicate
passed to MODIFY-TEXT-PROPERTIES, so that it identifies the intervals
to be modified rather than those not to be modified.

2001-01-23 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.146]:
Fix bug: UW IMAP sometimes returns multiple FETCH responses to a
FETCH, while we were expecting just one with multiple attributes. So
if there are multiple responses, merge them.

2001-01-22 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.145]:
Don't fetch ranges of the form "N:*" when N is greater than the length
of the folder. This causes an error to be signalled on UW IMAP
(although Cyrus accepts this and returns nothing).

2001-01-06 Chris Hanson <[email protected]>

* runtime/io.scm[14.62], runtime/runtime.pkg[14.358]:
Strip off external-string wrapper before handing it to the microcode.

* imail/imail-util.scm[1.31], imail/load.scm[1.25]:
Update copyright date.

* imail/imail-summary.scm[1.39], imail/imail-summary.scm[1.38],
imail/imail.pkg[1.80]:
Implement new variable imail-summary-auto-select to allow the user to
move around in the summary buffer without automatically selecting
messages. (Requested by Hal.)

* edwin/make.scm[3.105]:
Increment version to reflect recent changes.

* edwin/comtab.scm[1.71]:
Fix bug: COMTAB-KEY-BINDINGS was signalling error when the given
command was bound to a mouse button. Also, sort the result so that
the simplest kinds of keys appear first; this is usually what's wanted
when reverse-mapping a command for documentation.

* edwin/calias.scm[1.20]:
Kludge in support for buttons in place where they might occur for help
commands. Buttons should really be merged into the special-key
mechanism.

* edwin/comtab.scm[1.70]:
Try a different strategy for aliasing upper-case letters to lower-case
ones: rather than creating explicit aliases, just look up both as
needed.

* imail/imail-top.scm[1.229]:
Use new mail-notification mechanism in the notifier. This allows
IMAIL to coexist with the notifier.

* edwin/notify.scm[1.19]:
Add procedure NOTIFIER:SET-MAIL-STRING! to allow an alternate mail
reader (e.g. IMAIL) to control mail notification.

2001-01-05 Chris Hanson <[email protected]>

* microcode/string.c[9.41]:
Fix typo in ht_delete. Don't unnecessarily try to grow or shrink hash
table.

* runtime/string.scm[14.38]:
Pass external-string descriptor to substring-move-FOO! rather than
runtime's wrapper.

* runtime/runtime.pkg[14.357], runtime/string.scm[14.37]:
Add operations for XSTRING (extended string) objects.

2001-01-04 Chris Hanson <[email protected]>

* imail/imail-util.scm[1.30], imail/load.scm[1.24]:
Implement input port from external string.

* runtime/make.scm[14.66], runtime/runtime.pkg[14.356],
runtime/string.scm[14.36], runtime/version.scm[14.191]:
Add interface to external strings.

* microcode/string.c[9.40]:
Primitive names are supposed to be upper-case.

* microcode/prims.h[9.47], microcode/prosio.c[1.18],
microcode/string.c[9.39], microcode/version.h[11.177]:
Implement external-string mechanism for storing text data outside of
Scheme's heap.

2000-12-29 Chris Hanson <[email protected]>

* imail/load.scm[1.23]:
Reimplement handling of MIME entities. Now all entities are (more or
less) well-formed XML, using the keyword "imail-part". Presentation
of an entity is now consistent, whether it was originally shown inline
or out of line. New option allows message digests to have their
messages show out of line. imail-use-original-mime-boundaries
replaced by imail-mime-boundary-style; the latter additionally
supports a boundary that is an SGML comment.

2000-12-28 Chris Hanson <[email protected]>

* imail/imail-core.scm[1.115], imail/imail-top.scm[1.228],
imail/imail.pkg[1.79]:
Reimplement handling of MIME entities. Now all entities are (more or
less) well-formed XML, using the keyword "imail-part". Presentation
of an entity is now consistent, whether it was originally shown inline
or out of line. New option allows message digests to have their
messages show out of line. imail-use-original-mime-boundaries
replaced by imail-mime-boundary-style; the latter additionally
supports a boundary that is an SGML comment.

2000-12-25 Chris Hanson <[email protected]>

* edwin/Makefile.in[1.3], edwin/Makefile.in[1.2],
runtime/Makefile.in[1.3], runtime/Makefile.in[1.2]:
Fix problem remaking symbolic links.

* edwin/win32.scm[1.15]:
Fix bug: C-g was not acting as interrupt character.

2000-12-23 Chris Hanson <[email protected]>

* etc/optiondb.scm[1.5]:
Add WIN32 option. Alphabetize options.

* etc/optiondb.scm[1.4]:
Update to new GUARDED-SYSTEM-LOADER.

* microcode/bchdmp.c[9.87]:
Must include unix-emulation header files. These were inadvertently
removed with the mktemp changes.

2000-12-21 Chris Hanson <[email protected]>

* compiler/configure[1.4]:
Can't use -f test on symbolic links that point to directories.

* etc/Clean.sh[1.5]:
Delete configured makefile in "distclean" rule.

* README.txt[1.1]:
Initial revision.

* Makefile.in[1.16], configure.in[1.2], edwin/Makefile.in[1.1],
etc/Setup.sh[1.6], imail/Makefile.in[1.1], runtime/Makefile.in[1.1],
sos/Makefile.in[1.1]:
Define per-directory Makefiles with custom "install" rules for those
directories that supply things to be installed.

* imail/imail-summary.scm[1.37]:
Change highlighting so that only the date, subject, and author are
highlighted. This makes it easier to see point.

* imail/imail-top.scm[1.227]:
Set mode-line-process to a procedure value, so that the new mode line
is computed only by need.

* imail/imail-summary.scm[1.36]:
Fix problems with previous mode-line tweak by setting
mode-line-process to a procedure value that is called whenever the
mode line is generated.

* imail/imail-top.scm[1.226]:
Fix typo.

* imail/imail-summary.scm[1.35]:
Change imail-summary mode line to contain a connection-status
indicator.

* imail/imail-top.scm[1.225]:
Fix bug: make sure that "[New Mail]" marker is removed if the default
folder is deleted.

* imail/imail-top.scm[1.224]:
Fix problem with global mail notification: the code that decided
whether to do this depended on the selected buffer.

2000-12-20 Chris Hanson <[email protected]>

* imail/todo.txt[1.112]:
Write down assorted things I've been thinking about.

2000-12-19 Chris Hanson <[email protected]>

* etc/compile.scm[1.2]:
Make sure that all cref files are built.

* Makefile.in[1.15]:
Remove dependence of "install" on "all". This will eliminate
gratuitous rebuilding of bands.

* Makefile.in[1.14]:
Make sure that bands are written to output directory.

* runtime/version.scm[14.190]:
Increment release number.

* edwin/make.scm[3.104], imail/load.scm[1.22]:
Increment version to reflect recent changes.

2000-12-16 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.223]:
Change M-x imail-quit again -- this time to reverse the meaning of the
prefix argument. Now the default is to quit from all folders.

* imail/imail-top.scm[1.222]:
Add prefix argument to M-x imail-quit that says to close _all_
folders.

2000-12-09 Chris Hanson <[email protected]>

* compiler/Clean.sh[1.4]:
Don't clean vax disassembler links for "distclean".

2000-12-08 Chris Hanson <[email protected]>

* Attic/Makefile[1.19], Attic/configure[1.4], Clean.sh[1.4],
Clean.sh[1.3], Makefile.in[1.13], Makefile.in[1.12],
Makefile.in[1.11], Makefile.in[1.10], Makefile.in[1.9],
Makefile.in[1.8], Makefile.in[1.7], Makefile.in[1.6],
Makefile.in[1.5], Makefile.in[1.4], Makefile.in[1.3],
Makefile.in[1.2], Makefile.in[1.1], Makefile.std[1.11],
Setup.sh[1.6], Setup.sh[1.5], Setup.sh[1.4], Setup.sh[1.3],
compiler/Setup.sh[1.3], configure.in[1.1], etc/Setup.sh[1.5],
etc/TUTORIAL[1.1], etc/functions.sh[1.1], etc/mime.types[1.1],
install-sh[1.1], microcode/Setup.sh[1.5], microcode/Setup.sh[1.4],
microcode/Setup.sh[1.3], microcode/configure.in[11.3],
microcode/makegen/Makefile.in.in[1.13],
microcode/makegen/Makefile.in.in[1.12],
microcode/makegen/Makefile.in.in[1.11],
microcode/makegen/makeinit.sh[1.8],
microcode/makegen/makeinit.sh[1.7], mkinstalldirs[1.1],
runtime-check/Setup.sh[1.3]:
Use autoconf for top-level Makefile.

* Clean.sh[1.2], etc/Setup.sh[1.2]:
Fix typo.

* Attic/Makefile[1.18], Attic/Makefile[1.17], Clean.sh[1.1],
Makefile.std[1.10], Makefile.std[1.9], Setup.sh[1.2], Setup.sh[1.1],
Tags.sh[1.1], compiler/Attic/Makefile[1.20], compiler/Clean.sh[1.3],
compiler/Clean.sh[1.2], compiler/Clean.sh[1.1],
compiler/Setup.sh[1.2], compiler/Setup.sh[1.1],
compiler/Stage.sh[1.1], compiler/Tags.sh[1.1],
cref/Attic/Clean.sh[1.2], cref/Attic/Clean.sh[1.1],
edwin/Clean.sh[1.2], edwin/Clean.sh[1.1],
etc/Attic/bootstrap-compile.scm[1.8], etc/Attic/bootstrap.sh[1.5],
etc/Attic/build-compiler.scm[1.2], etc/Attic/build-edwin.scm[1.2],
etc/Attic/build-runtime.scm[1.2], etc/Attic/build-tree.sh[1.5],
etc/Attic/create-dirs.sh[1.8], etc/Attic/runtime-check.cbf[1.2],
etc/Clean.sh[1.4], etc/Clean.sh[1.3], etc/Clean.sh[1.2],
etc/Clean.sh[1.1], etc/Setup.sh[1.4], etc/Setup.sh[1.3],
etc/Setup.sh[1.1], etc/Stage.sh[1.2], etc/Stage.sh[1.1],
etc/Tags.sh[1.1], microcode/Attic/Mclean.sh[1.4],
microcode/Clean.sh[1.1], runtime-check/Attic/Makefile[1.3],
runtime-check/Clean.sh[1.1], runtime-check/Setup.sh[1.2],
runtime-check/Setup.sh[1.1]:
Redesign the structure for setup and clean rules. New structure uses
shell scripts in each directory, which the makefiles refer to. This
greatly simplifies the configuration code because it was getting too
painful to put complex shell scripts inside the makefiles.

* microcode/makegen/Makefile.in.in[1.10]:
When "Makefile.deps" was moved to top level directory, Forgot to
change "maintainer-clean" rule.

2000-12-07 Chris Hanson <[email protected]>

* runtime-check/Attic/Makefile[1.2]:
Fix typo in previous change.

* Attic/Makefile[1.16], etc/Attic/create-dirs.sh[1.7]:
Don't need to create "runtime-check" anymore; using a different
strategy.

* Attic/Makefile[1.15]:
Fix spurious errors from deleting non-existent files.

* Attic/Makefile[1.14]:
Fix typo.

* Attic/Makefile[1.13]:
Fix up "*clean" rules to handle "runtime-check" and "lib".

* etc/Attic/create-dirs.sh[1.6]:
Make sure "runtime-check/Makefile" exists.

* etc/Attic/create-dirs.sh[1.5], etc/Attic/create-dirs.sh[1.4]:
Need to have file "runtime-check/runtime.cbf".

* Attic/Makefile[1.12], Makefile.std[1.8],
etc/Attic/create-dirs.sh[1.3]:
Fix broken test commands.

* etc/Attic/create-dirs.sh[1.2]:
Fix rule to create runtime-check directory. Link rules were broken,
and script can't assume that .bin files exist yet; we must work from
the .scm files and transform the names.

* Attic/Makefile[1.11]:
Define "all" rule.

* etc/optiondb.scm[1.3]:
Use more powerful loader to support build process.

* etc/Attic/create-dirs.sh[1.1], etc/Attic/runtime-check.cbf[1.1],
etc/build-bands.sh[1.1], etc/compile.scm[1.1],
runtime-check/Attic/Makefile[1.1], runtime-check/runtime.cbf[1.1]:
Initial revision.

* microcode/makegen/Makefile.in.in[1.9],
microcode/makegen/Makefile.in.in[1.8]:
Add rules to make and install "utabmd.bin".

* microcode/mkinstalldirs[1.1]:
Import revision 1.13 from automake.

* microcode/makegen/Makefile.in.in[1.7]:
First cut at install rules.

* edwin/wincom.scm[1.132]:
Fix some bad interactions between buffer layouts and popped-up
windows.

* microcode/ntutl/config.h[1.3]:
Watcom C/C++ and Visual C++ both have <fcntl.h>, and it must be loaded
in order to get the definition for O_BINARY.

2000-12-06 Chris Hanson <[email protected]>

* Attic/configure[1.3], compiler/configure[1.3]:
Fix typo.

* Attic/Makefile[1.10], microcode/Attic/Mclean.sh[1.3],
microcode/Attic/Mclean.sh[1.2], microcode/Attic/Mclean.sh[1.1]:
Move knowledge about doing "maintainer-clean" into script in microcode
directory.

* microcode/configure.in[11.2]:
Don't try to link architecture files if they already exist.

* Attic/Makefile[1.9]:
For "maintainer-clean", treat microcode directory specially. If
"configure" exists but "Makefile" doesn't, run "configure".

* microcode/Setup.sh[1.2], microcode/makegen/Makefile.in.in[1.6],
microcode/makegen/makeinit.sh[1.6]:
Change "makegen/makeinit.sh" to leave the directory configured. This
allows "Setup.sh" to use "make setup", thus avoiding replication of
information.

* Attic/Makefile[1.8]:
Add rcs and win32 directories.

* compiler/Attic/Makefile[1.19]:
Don't create machine-specific files in "setup" rule. But do clean
them in "distclean" rule.

* Attic/configure[1.2], compiler/configure[1.2],
compiler/configure[1.1]:
Move compiler configuration to a file in the compiler directory.

* Attic/Makefile[1.7], Attic/Makefile[1.6], Attic/Makefile[1.5]:
Don't execute "*clean" rule in subdirectory if there's no makefile.

* compiler/Attic/Makefile[1.18]:
Don't delete the Makefile.

* compiler/Attic/Makefile[1.17]:
Add code to "setup" rule to create links into machine directory. (The
machine link itself is created at configuration time.)

* compiler/Attic/Makefile[1.16]:
Don't show conditional for "machine".

* Attic/Makefile[1.4]:
Don't abort clean rules if one subdirectory fails.

* compiler/Attic/Makefile[1.15]:
Add rules to clean the directory.

* microcode/makegen/makeinit.sh[1.5]:
Use "make distclean" to clean up unneeded files; don't reproduce
information that is already present in the makefile. Add comments
explaining what each step does.

* Attic/Makefile[1.3], microcode/makegen/Makefile.in.in[1.5]:
Move setup stuff to shell script. This must be possible to do without
a Makefile.

* Attic/configure[1.1], compiler/config.guess[1.1],
microcode/Setup.sh[1.1]:
Initial revision.

2000-12-05 Chris Hanson <[email protected]>

* microcode/makegen/makeinit.sh[1.4]:
Do equivalent of "distclean" after building "Makefile.in".

* compiler/Attic/Makefile[1.14]:
Fix typo.

* Makefile.std[1.7]:
Fix broken logic.

* Makefile.std[1.6]:
Add commands to delete packaging files when appropriate.

* Attic/Makefile[1.2]:
When doing "setup" for microcode directory, must create Makefile in
order to run the setup rule.

* Attic/Makefile[1.1]:
Initial revision.

* Makefile.std[1.5]:
Add "*clean" rules.

* compiler/Attic/Makefile[1.13]:
Don't create "machine" link in source directory; that is supposed to
go in the target directory.

* Makefile.std[1.4]:
Clean up commands for staging rules.

* compiler/Attic/Makefile[1.12]:
Rewrite to eliminate GNU make dependencies. Add "setup" rule.

* Makefile.std[1.3], microcode/makegen/Makefile.in.in[1.4],
microcode/makegen/Makefile.in.in[1.3]:
Add "setup" rule.

* edwin/filcom.scm[1.213]:
Fix bug: alternate file doesn't have to exist. Calling
PROMPT-FOR-ALTERNATE-FILE also prevented using this command to visit a
directory.

* microcode/makegen/makeinit.sh[1.3]:
Don't write files in "makegen/"; this causes problems when the build
directory is symlinked into the source directory.

* microcode/Attic/config.h[9.102], microcode/Attic/dosasutl.asm[1.5],
microcode/Attic/dosconio.c[1.14], microcode/Attic/dosenv.c[1.11],
microcode/Attic/dosexcp.c[1.7], microcode/Attic/dosexcp.h[1.5],
microcode/Attic/dosfg.c[1.5], microcode/Attic/dosfile.c[1.5],
microcode/Attic/dosfs.c[1.7], microcode/Attic/dosi10.asm[1.4],
microcode/Attic/dosinsn.h[1.4], microcode/Attic/dosint10.c[1.10],
microcode/Attic/dosint10.h[1.4], microcode/Attic/dosio.c[1.10],
microcode/Attic/dosio.h[1.6], microcode/Attic/doskbd.c[1.14],
microcode/Attic/doskbd.h[1.4], microcode/Attic/doskbutl.asm[1.8],
microcode/Attic/dosscan.h[1.6], microcode/Attic/dosselec.h[1.4],
microcode/Attic/dossig.c[1.18], microcode/Attic/dossys.c[1.6],
microcode/Attic/dossys.h[1.4], microcode/Attic/dosterm.h[1.4],
microcode/Attic/dostop.c[1.14], microcode/Attic/dostop.h[1.4],
microcode/Attic/dostrap.c[1.8], microcode/Attic/dostrap.h[1.5],
microcode/Attic/dostterm.c[1.4], microcode/Attic/dostty.c[1.5],
microcode/Attic/dosutil.c[1.4], microcode/Attic/dosutil.h[1.4],
microcode/Attic/dosx32.c[1.8], microcode/Attic/dosxcutl.asm[1.9],
microcode/Attic/msdos.h[1.8], microcode/Attic/oscond.h[1.27],
microcode/Attic/posixtyp.h[1.17], microcode/Attic/prdosenv.c[1.12],
microcode/Attic/prdosfs.c[1.6], microcode/acconfig.h[11.1],
microcode/ansidecl.h[1.7], microcode/avltree.h[1.3],
microcode/bchdmp.c[9.86], microcode/bchdrn.c[1.10],
microcode/bchdrn.h[1.10], microcode/bchgcc.h[9.63],
microcode/bchgcl.c[9.51], microcode/bchmmg.c[9.98],
microcode/bchmmg.c[9.97], microcode/bchpur.c[9.70],
microcode/bchpur.c[9.69], microcode/bchutl.c[1.11],
microcode/bignum.c[9.49], microcode/bintopsb.c[9.72],
microcode/bitstr.c[9.63], microcode/bitstr.h[1.10],
microcode/boot.c[9.104], microcode/cmpauxmd/hppa.m4[1.39],
microcode/cmpauxmd/m4-dos[1.2], microcode/cmpauxmd/makefile[1.7],
microcode/cmpauxmd/mc68k.m4[1.27], microcode/cmpauxmd/vax.m4[1.4],
microcode/cmpgc.h[1.31], microcode/cmpint.c[1.92],
microcode/cmpint.h[10.7], microcode/cmpintmd/i386.h[1.32],
microcode/cmptype.h[1.3], microcode/config.guess[11.1],
microcode/config.sub[11.1], microcode/configure.in[11.1],
microcode/confshared.h[11.1], microcode/const.h[9.46],
microcode/debug.c[9.51], microcode/default.h[9.44],
microcode/dmpwrld.c[9.40], microcode/dosutl/Attic/bch-prm.lst[1.8],
microcode/dosutl/Attic/bch-ztc.lst[1.8],
microcode/dosutl/Attic/config.bat[1.3],
microcode/dosutl/Attic/float.h[1.2],
microcode/dosutl/Attic/limits.h[1.2],
microcode/dosutl/Attic/makefile[1.14],
microcode/dosutl/Attic/scm-prm.lst[1.8],
microcode/dosutl/Attic/scm-ztc.lst[1.8], microcode/error.c[1.7],
microcode/extern.h[9.57], microcode/fasdump.c[9.64],
microcode/fasload.c[9.88], microcode/findprim.c[9.54],
microcode/foreign.c[1.3], microcode/foreign.h[1.3],
microcode/gccode.h[9.57], microcode/gcloop.c[9.47],
microcode/hooks.c[9.59], microcode/hppacach.h[1.6],
microcode/hppanwca.c[1.5], microcode/install-sh[11.1],
microcode/intern.c[9.57], microcode/interp.c[9.90],
microcode/interp.h[9.42], microcode/intrpt.h[1.21],
microcode/liarc.h[1.15], microcode/lookprm.c[1.12],
microcode/lookup.c[9.58], microcode/lookup.h[9.52],
microcode/m/Attic/alpha.h[1.5], microcode/m/Attic/apoll68k.h[1.5],
microcode/m/Attic/hcx.h[1.4], microcode/m/Attic/hp9k300.h[1.14],
microcode/m/Attic/hp9k400.h[1.10], microcode/m/Attic/hp9k800.h[1.15],
microcode/m/Attic/i386.h[1.7], microcode/m/Attic/ibm032.h[1.4],
microcode/m/Attic/mips.h[1.11], microcode/m/Attic/next.h[1.7],
microcode/m/Attic/rs6000.h[1.4], microcode/m/Attic/sun3.h[1.8],
microcode/m/Attic/sun4.h[1.5], microcode/m/Attic/umax.h[1.4],
microcode/m/Attic/vax.h[1.7], microcode/makegen/Makefile.in.in[1.2],
microcode/makegen/files-core.scm[1.2],
microcode/makegen/files-gc-bch.scm[1.2],
microcode/makegen/files-gc-std.scm[1.2],
microcode/makegen/files-optional.scm[1.2],
microcode/makegen/files-os-prim.scm[1.2],
microcode/makegen/files-other.scm[1.2],
microcode/makegen/files-unix.scm[1.2], microcode/makegen/m4.sh[1.2],
microcode/makegen/makegen.scm[1.2],
microcode/makegen/makeinit.sh[1.2], microcode/memmag.c[9.66],
microcode/memmag.h[1.8], microcode/missing.c[9.33],
microcode/mul.c[9.35], microcode/nt.h[1.9], microcode/ntenv.c[1.19],
microcode/ntfs.c[1.26], microcode/ntgui.c[1.28],
microcode/ntio.c[1.23], microcode/ntscreen.c[1.46],
microcode/ntsig.c[1.22], microcode/nttop.c[1.30],
microcode/nttrap.c[1.18], microcode/nttterm.c[1.4],
microcode/ntutl/config.h[1.2], microcode/ntutl/makefile.wcc[1.16],
microcode/ntutl/ntgui.rc[1.10], microcode/object.h[9.50],
microcode/obstack.c[1.6], microcode/obstack.h[1.11],
microcode/option.c[1.55], microcode/os.h[1.7], microcode/os2.h[1.7],
microcode/os2fs.c[1.12], microcode/os2msg.c[1.14],
microcode/os2pm.c[1.33], microcode/os2pmcon.c[1.26],
microcode/os2proc.c[1.7], microcode/os2sock.c[1.15],
microcode/os2term.c[1.4], microcode/os2top.c[1.21],
microcode/os2utl/config.cmd[1.4], microcode/os2utl/config.h[1.2],
microcode/os2utl/makefile[1.15], microcode/os2utl/makefile.cmn[1.13],
microcode/os2utl/makefile.emx[1.9],
microcode/os2utl/makefile.gcc[1.7],
microcode/os2utl/makefile.vac[1.7],
microcode/os2utl/makefile.wcc[1.8],
microcode/os2utl/mkos2pm.scm[1.2], microcode/os2xcpt.c[1.8],
microcode/osenv.h[1.10], microcode/osfs.h[1.9],
microcode/osio.h[1.15], microcode/osscheme.c[1.11],
microcode/osscheme.h[1.11], microcode/outf.c[1.12],
microcode/outf.h[1.5], microcode/ppband.c[9.50],
microcode/prbfish.c[1.9], microcode/primutl.c[9.73],
microcode/prmcon.h[1.4], microcode/prntenv.c[1.10],
microcode/prntfs.c[1.16], microcode/prntio.c[1.13],
microcode/pros2fs.c[1.18], microcode/pros2io.c[1.9],
microcode/prosenv.c[1.17], microcode/prosfs.c[1.15],
microcode/prosproc.c[1.19], microcode/pruxdld.c[1.13],
microcode/pruxenv.c[1.19], microcode/pruxfs.c[9.56],
microcode/pruxio.c[1.8], microcode/pruxsock.c[1.18],
microcode/psbmap.h[9.44], microcode/purify.c[9.59],
microcode/purutl.c[9.51], microcode/regex.c[1.20],
microcode/s/Attic/386bsd.h[1.4], microcode/s/Attic/aix.h[1.4],
microcode/s/Attic/bsd4-2.h[1.9], microcode/s/Attic/bsd4-3.h[1.7],
microcode/s/Attic/decosf.h[1.5], microcode/s/Attic/dos.m4[1.7],
microcode/s/Attic/freebsd.h[1.5], microcode/s/Attic/hpux.h[1.13],
microcode/s/Attic/irix4.h[1.6], microcode/s/Attic/irix6.h[1.3],
microcode/s/Attic/linux.h[1.21], microcode/s/Attic/linuxelf.lds[1.2],
microcode/s/Attic/mach4-3.h[1.5], microcode/s/Attic/newsos5.h[1.6],
microcode/s/Attic/nextos.h[1.8], microcode/s/Attic/nt.m4[1.3],
microcode/s/Attic/sunos3.h[1.6], microcode/s/Attic/sunos4.h[1.9],
microcode/s/Attic/sysv3.h[1.6], microcode/s/Attic/sysv4.h[1.5],
microcode/s/Attic/ultrix.h[1.17], microcode/s/Attic/ultrix.m4[1.8],
microcode/s/Attic/umax.h[1.7], microcode/scheme.h[9.39],
microcode/storage.c[9.57], microcode/syntax.c[1.25],
microcode/syscall.h[1.13], microcode/sysprim.c[9.47],
microcode/term.c[1.15], microcode/termcap.c[1.7],
microcode/terminfo.c[1.4], microcode/transact.c[1.5],
microcode/trap.h[9.45], microcode/unxutl/Attic/cf-dist.h[1.26],
microcode/unxutl/Attic/config[1.32],
microcode/unxutl/Attic/makefile[1.29],
microcode/unxutl/Attic/y300.lcl[1.25],
microcode/unxutl/Attic/y700.lcl[1.9],
microcode/unxutl/Attic/y800.lcl[1.3],
microcode/unxutl/Attic/ymake.sed[1.2],
microcode/unxutl/Attic/ymkfile[1.97],
microcode/unxutl/Attic/ynws3250.lcl[1.4], microcode/utils.c[9.75],
microcode/ux.c[1.20], microcode/ux.h[1.74], microcode/uxctty.c[1.14],
microcode/uxenv.c[1.20], microcode/uxfile.c[1.10],
microcode/uxfs.c[1.20], microcode/uxio.c[1.45],
microcode/uxproc.c[1.26], microcode/uxsig.c[1.35],
microcode/uxsig.h[1.6], microcode/uxsock.c[1.26],
microcode/uxterm.c[1.28], microcode/uxtop.c[1.25],
microcode/uxtrap.c[1.30], microcode/uxtrap.h[1.29],
microcode/version.h[11.176], microcode/wabbit.c[1.8],
microcode/x11.h[1.17], microcode/x11base.c[1.76],
microcode/xdebug.c[9.34]:
Merge in changes from branch ac-new-bch-gc.

* pcsample/Makefile[1.3]:
Add rule for making TAGS file.

* microcode/makegen/Makefile.in.in[1.1.2.1.2.1]:
Add rule to etags so that primitive definitions are tagged.

2000-12-04 Chris Hanson <[email protected]>

* microcode/ntfs.c[1.25.4.2], microcode/osfs.h[1.8.4.2]:
Fix copyright date.

* microcode/bchdmp.c[9.85.2.1.2.4], microcode/bchgcc.h[9.60.2.3.2.5],
microcode/bchmmg.c[9.95.2.3.2.5],
microcode/ntutl/makefile.wcc[1.13.2.1.2.4],
microcode/os2utl/makefile.cmn[1.12.2.1.2.3]:
Eliminate use of `mktemp'; instead use portable `OS_file_touch' which
is safer.

* microcode/ntfs.c[1.25.4.1], microcode/os2fs.c[1.11.4.1],
microcode/osfs.h[1.8.4.1], microcode/prntfs.c[1.15.2.1.2.1],
microcode/pros2fs.c[1.17.4.1], microcode/prosfs.c[1.14.2.1.2.1],
microcode/pruxfs.c[9.55.2.1.2.1], microcode/uxfs.c[1.19.2.1.2.1]:
Define standard procedure `OS_file_touch' and merge OS-specific copies
of corresponding primitives into a OS-independent primitive.

* microcode/bchdmp.c[9.85.2.1.2.3]:
Finish rewriting `dump_loop'. Finished product is very similar to
gc_loop.

* microcode/bchgcl.c[9.50.4.7]:
Add some macros to abstract the process of dumping the free and scan
buffers.

* microcode/bchdmp.c[9.85.2.1.2.2]:
First incomplete draft of rewrite. File reorganized and style
converted. `dump_loop' is in transition but cursory testing indicates
that it still works.

* microcode/bchgcc.h[9.60.2.3.2.4], microcode/bchgcl.c[9.50.4.6]:
Rename FLOAT_ALIGN_FREE to BCH_ALIGN_FLOAT.
Define BCH_ALIGN_FLOAT_ADDRESS.

* edwin/filcom.scm[1.212]:
Change M-x find-alternate-file to prompt as it does in Emacs: with the
full pathname of the current buffer's file, if any.

* microcode/os2utl/mkos2pm.scm[1.1.2.1]:
Initial revision.

* microcode/os2utl/mkos2pm.scm[1.1]:
file mkos2pm.scm was initially added on branch ac-new-bch-gc.

* microcode/os2utl/makefile.cmn[1.12.2.1.2.2]:
Add rule to automatically generate the os2pm-*.h files.

* microcode/prosproc.c[1.18.2.1.2.4]:
IBM VisualAge C/C++ doesn't need declaration of `environ'; it's
declared by <stdlib.h>.

2000-12-03 Chris Hanson <[email protected]>

* edwin/vc.scm[1.76]:
Add defaults to prompts for M-x vc-version-diff.

* microcode/ntutl/makefile.wcc[1.15]:
Clean up .map files and *def.c files.

* microcode/ntutl/makefile.wcc[1.14],
microcode/ntutl/makefile.wcc[1.13.2.1.2.3]:
Optimize code by default.

* microcode/findprim.c[9.53.2.1.2.3]:
Work around: FreeBSD declares incompatible `mergesort' in <stdlib.h>.

* microcode/ux.h[1.73.2.1.2.4]:
Declare `environ' on non-GNU systems.

* microcode/pruxenv.c[1.18.2.1.2.1]:
Eliminate unused unix-specific primitive UNIX-ENVIRONMENT. This
primitive is identical to the portable primitive SCHEME-ENVIRONMENT.

2000-12-02 Chris Hanson <[email protected]>

* microcode/interp.h[9.41.4.1], microcode/ntenv.c[1.18.4.1],
microcode/ntgui.c[1.27.2.1.2.1], microcode/ntscreen.c[1.45.4.1],
microcode/ntsig.c[1.21.2.1.2.1], microcode/nttrap.c[1.17.2.1.2.2],
microcode/outf.c[1.11.2.1.2.2], microcode/prntio.c[1.12.4.1]:
Eliminate compiler warnings from Watcom C/C++ under Windows.

* microcode/ntutl/makefile.wcc[1.13.2.1.2.2]:
Don't forget to clean up .map files and *def.c files.

* microcode/prosproc.c[1.18.2.1.2.3]:
This file requires explicit declaration of `environ' because it
doesn't include the operating-system specific files that normally
provide it.

* microcode/ux.h[1.73.2.1.2.3]:
Copy include of time files here; don't depend on "config.h" doing
this.

* microcode/prosproc.c[1.18.2.1.2.2], microcode/ux.h[1.73.2.1.2.2],
microcode/uxproc.c[1.25.2.1.2.1]:
Eliminate explicit declarations of `environ'.

* microcode/nttrap.c[1.17.2.1.2.1]:
Change names containing "Win32Exception" back to "WinntException".
Apparently at least one of these names is externally defined.

* microcode/ansidecl.h[1.6.4.1], microcode/bchmmg.c[9.95.2.3.2.4],
microcode/bitstr.c[9.62.4.1], microcode/cmpint.c[1.91.2.1.2.1],
microcode/cmpint.h[10.6.4.1],
microcode/cmpintmd/i386.h[1.31.2.1.2.2],
microcode/fasload.c[9.87.2.1.2.1],
microcode/findprim.c[9.53.2.1.2.2],
microcode/findprim.c[9.53.2.1.2.1], microcode/intern.c[9.56.4.1],
microcode/lookup.c[9.57.2.1.2.1], microcode/lookup.h[9.51.2.1.2.1],
microcode/nt.h[1.8.2.1.2.1],
microcode/ntutl/makefile.wcc[1.13.2.1.2.1],
microcode/obstack.c[1.5.4.1], microcode/obstack.h[1.10.4.1],
microcode/os2.h[1.6.4.1], microcode/os2msg.c[1.13.4.1],
microcode/os2pm.c[1.32.4.1], microcode/os2proc.c[1.6.4.1],
microcode/os2sock.c[1.14.4.1], microcode/os2term.c[1.3.4.1],
microcode/os2top.c[1.20.4.1], microcode/os2utl/config.h[1.1.2.1.2.1],
microcode/os2utl/makefile.cmn[1.12.2.1.2.1],
microcode/os2utl/makefile.vac[1.6.2.1.2.1],
microcode/os2xcpt.c[1.7.4.1], microcode/osenv.h[1.9.4.1],
microcode/outf.c[1.11.2.1.2.1], microcode/outf.h[1.4.4.1],
microcode/primutl.c[9.72.2.1.2.1], microcode/prmcon.h[1.3.4.1],
microcode/pros2io.c[1.8.4.1], microcode/prosproc.c[1.18.2.1.2.1],
microcode/purutl.c[9.50.4.1], microcode/regex.c[1.19.2.1.2.1],
microcode/sysprim.c[9.46.4.1], microcode/termcap.c[1.6.2.1.2.1],
microcode/transact.c[1.4.4.1], microcode/utils.c[9.74.2.1.2.1],
microcode/ux.h[1.73.2.1.2.1], microcode/x11.h[1.16.4.1]:
Eliminate large number of compiler warnings from IBM VisualAge C/C++
running under OS/2. One specific change is to eliminate most uses of
__STDC__ in favor of HAVE_STDC, since IBM's compiler (and Microsoft's
Windows compiler) doesn't define this.

* microcode/interp.c[9.89.2.1.2.1]:
Eliminate page breaks in middle of `Interpret'. (Most of these were
useless anyway since they had been indented.) Fix indentation in a
few places. Reindent lines that were too long.

* microcode/cmpintmd/i386.h[1.31.2.1.2.1]:
Fix bug: code was still referencing _OS2 and WINNT rather than __OS2__
and __WIN32__.

2000-12-01 Chris Hanson <[email protected]>

* microcode/bchgcc.h[9.60.2.3.2.3], microcode/bchgcl.c[9.50.4.5],
microcode/bchmmg.c[9.95.2.3.2.3], microcode/bchpur.c[9.67.2.2.2.3]:
Clean up the code in the two top-level GC procedures, `GC' and
`purify'. Mostly presentation changes, but some simplifications as
well. The code is still far from obvious.

* microcode/bchgcc.h[9.60.2.3.2.2], microcode/bchmmg.c[9.95.2.3.2.2],
microcode/bchpur.c[9.67.2.2.2.2]:
Fix bug: code for fixing up weak pairs at end of GC was assuming that
Constant_Top was the same as low_heap. But recent changes make that
untrue in purify.

* microcode/bchgcl.c[9.50.4.4]:
Fix thinko: scope of C variable declaration _includes_ an initializer
if present. This is unlike Scheme.

* 6001/edextra.scm[1.32]:
X-SCREEN-AUTO-RAISE has been eliminated.

* edwin/curren.scm[1.143]:
Fix typo in previous change.

* edwin/debug.scm[1.55]:
Fix typo in recent change.

* edwin/xcom.scm[1.17], edwin/xterm.scm[1.65]:
Create separate fields in X screen structure to hold visibility,
whether window is mapped, and whether window is exposed. Synthesize
SCREEN-VISIBILITY from these fields; previously SCREEN-VISIBILITY held
all this information and was sometimes inaccurate.

Don't attempt to give focus to an unmapped frame. This will only
signal an error.

Don't map an unmapped frame when entering it. Eliminate variable
X-SCREEN-AUTO-RAISE and associated command. Both of these things were
window management; we shouldn't be doing that.

* edwin/curren.scm[1.142], edwin/debug.scm[1.54],
edwin/edwin.pkg[1.265], edwin/os2term.scm[1.22],
edwin/scrcom.scm[1.8], edwin/screen.scm[1.118],
edwin/win32.scm[1.14], edwin/wincom.scm[1.131]:
Change arguments to OTHER-SCREEN so that only first is required.

Eliminate OTHER-SCREEN?, replacing occurrences with OTHER-SCREEN.

Change meaning of SCREEN-VISIBLE? to mean "not unmapped"; this is
almost always what was meant.

Fix bug in SELECT-WINDOW: when selecting the selected window of
another frame, must select the frame.

Fix SELECT-BUFFER-OTHER-SCREEN to select the frame as well as the
buffer if reusing an existing frame.

* edwin/scrcom.scm[1.7]:
Don't allow selection of frames that aren't mapped. The user can
unmap it first if wanted.

2000-11-30 Chris Hanson <[email protected]>

* edwin/sendmail.scm[1.71]:
Fix bug: temporary mark was used across buffer modification.

* edwin/xterm.scm[1.64]:
FOCUS-IN events must not cause X-WINDOW-SET-INPUT-FOCUS to be called.
Use dynamic binding to prevent this from happening.

* microcode/bchgcl.c[9.50.4.3]:
Fix termination condition for purification. purify expects us to halt
at any broken heart.

* microcode/bchgcl.c[9.50.4.2]:
Fix typo.

2000-11-29 Chris Hanson <[email protected]>

* microcode/bchdmp.c[9.85.2.1.2.1], microcode/bchgcc.h[9.60.2.3.2.1],
microcode/bchgcl.c[9.50.4.1], microcode/bchmmg.c[9.95.2.3.2.1],
microcode/bchpur.c[9.67.2.2.2.1], microcode/fasdump.c[9.63.2.1.2.1],
microcode/gccode.h[9.56.2.1.2.1], microcode/gcloop.c[9.46.4.1],
microcode/purify.c[9.58.4.1]:
Complete rewrite of the bchscheme garbage-collector main loop. The
garbage collector and purify now share the main loop. The new design
is much more transparent: there are no variable references or control
branches hidden inside macros. This design should be easier to debug,
too, since the control structure isn't hidden inside macros that can't
be stepped.

* edwin/vc.scm[1.75]:
M-x vc-directory now prompts for the directory.

* microcode/bchgcc.h[9.62], microcode/bchgcc.h[9.60.2.3]:
Fix thinko.

* edwin/sendmail.scm[1.70]:
Fix typo in previous change.

2000-11-28 Chris Hanson <[email protected]>

* microcode/cmpgc.h[1.30.2.2]:
Fix typo.

* microcode/version.h[11.175]:
Update to reflect bug fix to purify in bchscheme.

* rcs/mklogs.scm[1.22]:
Don't need separate changelogs for the documentation; just one.

* runtime/version.scm[14.189]:
Update release number to 7.5.11.

* rcs/nparse.scm[1.3]:
Handle CVS "magic branch numbers".

* rcs/mklogs.scm[1.21]:
Move v7 documentation from "/scheme/documentation/" to
"/scheme/v7/doc/".

* microcode/bchgcc.h[9.61], microcode/bchgcc.h[9.60.2.2],
microcode/bchmmg.c[9.96], microcode/bchmmg.c[9.95.2.3],
microcode/bchpur.c[9.68], microcode/bchpur.c[9.67.2.2]:
Fix bug: purify wasn't properly saving and restoring the scan state
around the scan of constant space. Doing this right requires access
to internal state of bchmmg, so I built an abstraction to do this.

* microcode/bchpur.c[9.67.2.1]:
Change some instances of `purify_mode' to `pure_p' to eliminate
confusion; another variable called `purify_mode' has a completely
different type and meaning.

* microcode/configure.in[1.1.2.2]:
Add new function tests needed by "bchmmg.c".

* microcode/bchmmg.c[9.95.2.2]:
Reconditionalize to use less idiosyncratic tests.

2000-11-27 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.221]:
Fix M-x imail-save-attachment properly; previous fix didn't work right.

* microcode/ntutl/config.h[1.1], microcode/os2utl/config.h[1.1]:
file config.h was initially added on branch use-autoconf.

* microcode/makegen/files-optional.scm[1.1]:
file files-optional.scm was initially added on branch use-autoconf.

* microcode/makegen/files-os-prim.scm[1.1]:
file files-os-prim.scm was initially added on branch use-autoconf.

* microcode/makegen/files-other.scm[1.1]:
file files-other.scm was initially added on branch use-autoconf.

* microcode/makegen/files-unix.scm[1.1]:
file files-unix.scm was initially added on branch use-autoconf.

* microcode/makegen/m4.sh[1.1]:
file m4.sh was initially added on branch use-autoconf.

* microcode/makegen/makegen.scm[1.1]:
file makegen.scm was initially added on branch use-autoconf.

* microcode/makegen/makeinit.sh[1.1]:
file makeinit.sh was initially added on branch use-autoconf.

* microcode/makegen/Makefile.in.in[1.1]:
file Makefile.in.in was initially added on branch use-autoconf.

* microcode/makegen/files-core.scm[1.1]:
file files-core.scm was initially added on branch use-autoconf.

* microcode/makegen/files-gc-bch.scm[1.1]:
file files-gc-bch.scm was initially added on branch use-autoconf.

* microcode/makegen/files-gc-std.scm[1.1]:
file files-gc-std.scm was initially added on branch use-autoconf.

* microcode/cmpauxmd/m4-dos[1.1]:
file m4-dos was initially added on branch use-autoconf.

* microcode/install-sh[1.1]:
file install-sh was initially added on branch use-autoconf.

* microcode/config.guess[1.1]:
file config.guess was initially added on branch use-autoconf.

* microcode/config.sub[1.1]:
file config.sub was initially added on branch use-autoconf.

* microcode/configure.in[1.1]:
file configure.in was initially added on branch use-autoconf.

* microcode/confshared.h[1.1]:
file confshared.h was initially added on branch use-autoconf.

* microcode/Attic/config.h[9.101.2.1],
microcode/Attic/dosasutl.asm[1.4.2.1],
microcode/Attic/dosconio.c[1.13.2.1],
microcode/Attic/dosenv.c[1.10.2.1],
microcode/Attic/dosexcp.c[1.6.2.1],
microcode/Attic/dosexcp.h[1.4.2.1], microcode/Attic/dosfg.c[1.4.2.1],
microcode/Attic/dosfile.c[1.4.2.1], microcode/Attic/dosfs.c[1.6.2.1],
microcode/Attic/dosi10.asm[1.3.2.1],
microcode/Attic/dosinsn.h[1.3.2.1],
microcode/Attic/dosint10.c[1.9.2.1],
microcode/Attic/dosint10.h[1.3.2.1],
microcode/Attic/dosio.c[1.9.2.1], microcode/Attic/dosio.h[1.5.2.1],
microcode/Attic/doskbd.c[1.13.2.1],
microcode/Attic/doskbd.h[1.3.2.1],
microcode/Attic/doskbutl.asm[1.7.2.1],
microcode/Attic/dosscan.h[1.5.2.1],
microcode/Attic/dosselec.h[1.3.2.1],
microcode/Attic/dossig.c[1.17.2.1],
microcode/Attic/dossys.c[1.5.2.1], microcode/Attic/dossys.h[1.3.2.1],
microcode/Attic/dosterm.h[1.3.2.1],
microcode/Attic/dostop.c[1.13.2.1],
microcode/Attic/dostop.h[1.3.2.1],
microcode/Attic/dostrap.c[1.7.2.1],
microcode/Attic/dostrap.h[1.4.2.1],
microcode/Attic/dostterm.c[1.3.2.1],
microcode/Attic/dostty.c[1.4.2.1],
microcode/Attic/dosutil.c[1.3.2.1],
microcode/Attic/dosutil.h[1.3.2.1],
microcode/Attic/dosx32.c[1.7.2.1],
microcode/Attic/dosxcutl.asm[1.8.2.1],
microcode/Attic/msdos.h[1.7.2.1], microcode/Attic/oscond.h[1.26.2.1],
microcode/Attic/posixtyp.h[1.16.2.1],
microcode/Attic/prdosenv.c[1.11.2.1],
microcode/Attic/prdosfs.c[1.5.2.1], microcode/acconfig.h[1.1.2.1],
microcode/avltree.h[1.2.2.1], microcode/bchdmp.c[9.85.2.1],
microcode/bchdrn.c[1.9.2.1], microcode/bchdrn.h[1.9.2.1],
microcode/bchgcc.h[9.60.2.1], microcode/bchmmg.c[9.95.2.1],
microcode/bchutl.c[1.10.2.1], microcode/bignum.c[9.48.2.1],
microcode/bintopsb.c[9.71.2.1], microcode/bitstr.h[1.9.2.1],
microcode/boot.c[9.103.2.1], microcode/cmpauxmd/hppa.m4[1.38.2.1],
microcode/cmpauxmd/m4-dos[1.1.2.1],
microcode/cmpauxmd/makefile[1.6.2.1],
microcode/cmpauxmd/mc68k.m4[1.26.2.1],
microcode/cmpauxmd/vax.m4[1.3.2.1], microcode/cmpgc.h[1.30.2.1],
microcode/cmpint.c[1.91.2.1], microcode/cmpintmd/i386.h[1.31.2.1],
microcode/cmptype.h[1.2.2.1], microcode/config.guess[1.1.2.1],
microcode/config.sub[1.1.2.1], microcode/configure.in[1.1.2.1],
microcode/confshared.h[1.1.2.1], microcode/const.h[9.45.2.1],
microcode/debug.c[9.50.2.1], microcode/default.h[9.43.2.1],
microcode/dmpwrld.c[9.39.2.1],
microcode/dosutl/Attic/bch-prm.lst[1.7.2.1],
microcode/dosutl/Attic/bch-ztc.lst[1.7.2.1],
microcode/dosutl/Attic/config.bat[1.2.2.1],
microcode/dosutl/Attic/float.h[1.1.2.1],
microcode/dosutl/Attic/limits.h[1.1.2.1],
microcode/dosutl/Attic/makefile[1.13.2.1],
microcode/dosutl/Attic/scm-prm.lst[1.7.2.1],
microcode/dosutl/Attic/scm-ztc.lst[1.7.2.1],
microcode/error.c[1.6.2.1], microcode/extern.h[9.56.2.1],
microcode/fasdump.c[9.63.2.1], microcode/fasload.c[9.87.2.1],
microcode/findprim.c[9.53.2.1], microcode/foreign.c[1.2.2.1],
microcode/foreign.h[1.2.2.1], microcode/gccode.h[9.56.2.1],
microcode/hooks.c[9.58.2.1], microcode/hppacach.h[1.5.2.1],
microcode/hppanwca.c[1.4.2.1], microcode/install-sh[1.1.2.1],
microcode/interp.c[9.89.2.1], microcode/intrpt.h[1.20.2.1],
microcode/liarc.h[1.14.2.1], microcode/lookprm.c[1.11.2.1],
microcode/lookup.c[9.57.2.1], microcode/lookup.h[9.51.2.1],
microcode/m/Attic/alpha.h[1.4.2.1],
microcode/m/Attic/apoll68k.h[1.4.2.1],
microcode/m/Attic/hcx.h[1.3.2.1],
microcode/m/Attic/hp9k300.h[1.13.2.1],
microcode/m/Attic/hp9k400.h[1.9.2.1],
microcode/m/Attic/hp9k800.h[1.14.2.1],
microcode/m/Attic/i386.h[1.6.2.1],
microcode/m/Attic/ibm032.h[1.3.2.1],
microcode/m/Attic/mips.h[1.10.2.1],
microcode/m/Attic/next.h[1.6.2.1],
microcode/m/Attic/rs6000.h[1.3.2.1],
microcode/m/Attic/sun3.h[1.7.2.1], microcode/m/Attic/sun4.h[1.4.2.1],
microcode/m/Attic/umax.h[1.3.2.1], microcode/m/Attic/vax.h[1.6.2.1],
microcode/makegen/Makefile.in.in[1.1.2.1],
microcode/makegen/files-core.scm[1.1.2.1],
microcode/makegen/files-gc-bch.scm[1.1.2.1],
microcode/makegen/files-gc-std.scm[1.1.2.1],
microcode/makegen/files-optional.scm[1.1.2.1],
microcode/makegen/files-os-prim.scm[1.1.2.1],
microcode/makegen/files-other.scm[1.1.2.1],
microcode/makegen/files-unix.scm[1.1.2.1],
microcode/makegen/m4.sh[1.1.2.1],
microcode/makegen/makegen.scm[1.1.2.1],
microcode/makegen/makeinit.sh[1.1.2.1], microcode/memmag.c[9.65.2.1],
microcode/memmag.h[1.7.2.1], microcode/missing.c[9.32.2.1],
microcode/mul.c[9.34.2.1], microcode/nt.h[1.8.2.1],
microcode/ntgui.c[1.27.2.1], microcode/ntio.c[1.22.2.1],
microcode/ntsig.c[1.21.2.1], microcode/nttop.c[1.29.2.1],
microcode/nttrap.c[1.17.2.1], microcode/nttterm.c[1.3.2.1],
microcode/ntutl/config.h[1.1.2.1],
microcode/ntutl/makefile.wcc[1.13.2.1],
microcode/ntutl/ntgui.rc[1.9.2.1], microcode/object.h[9.49.2.1],
microcode/option.c[1.54.2.1], microcode/os.h[1.6.2.1],
microcode/os2pmcon.c[1.25.2.1], microcode/os2utl/config.cmd[1.3.2.1],
microcode/os2utl/config.h[1.1.2.1],
microcode/os2utl/makefile[1.14.2.1],
microcode/os2utl/makefile.cmn[1.12.2.1],
microcode/os2utl/makefile.emx[1.8.2.1],
microcode/os2utl/makefile.gcc[1.6.2.1],
microcode/os2utl/makefile.vac[1.6.2.1],
microcode/os2utl/makefile.wcc[1.7.2.1], microcode/osio.h[1.14.2.1],
microcode/osscheme.c[1.10.2.1], microcode/osscheme.h[1.10.2.1],
microcode/outf.c[1.11.2.1], microcode/ppband.c[9.49.2.1],
microcode/prbfish.c[1.8.2.1], microcode/primutl.c[9.72.2.1],
microcode/prntenv.c[1.9.2.1], microcode/prntfs.c[1.15.2.1],
microcode/prosenv.c[1.16.2.1], microcode/prosfs.c[1.14.2.1],
microcode/prosproc.c[1.18.2.1], microcode/pruxdld.c[1.12.2.1],
microcode/pruxenv.c[1.18.2.1], microcode/pruxfs.c[9.55.2.1],
microcode/pruxio.c[1.7.2.1], microcode/pruxsock.c[1.17.2.1],
microcode/psbmap.h[9.43.2.1], microcode/regex.c[1.19.2.1],
microcode/s/Attic/386bsd.h[1.3.2.1],
microcode/s/Attic/aix.h[1.3.2.1],
microcode/s/Attic/bsd4-2.h[1.8.2.1],
microcode/s/Attic/bsd4-3.h[1.6.2.1],
microcode/s/Attic/decosf.h[1.4.2.1],
microcode/s/Attic/dos.m4[1.6.2.1],
microcode/s/Attic/freebsd.h[1.4.2.1],
microcode/s/Attic/hpux.h[1.12.2.1],
microcode/s/Attic/irix4.h[1.5.2.1],
microcode/s/Attic/irix6.h[1.2.2.1],
microcode/s/Attic/linux.h[1.20.2.1],
microcode/s/Attic/linuxelf.lds[1.1.2.1],
microcode/s/Attic/mach4-3.h[1.4.2.1],
microcode/s/Attic/newsos5.h[1.5.2.1],
microcode/s/Attic/nextos.h[1.7.2.1],
microcode/s/Attic/nt.m4[1.2.2.1],
microcode/s/Attic/sunos3.h[1.5.2.1],
microcode/s/Attic/sunos4.h[1.8.2.1],
microcode/s/Attic/sysv3.h[1.5.2.1],
microcode/s/Attic/sysv4.h[1.4.2.1],
microcode/s/Attic/ultrix.h[1.16.2.1],
microcode/s/Attic/ultrix.m4[1.7.2.1],
microcode/s/Attic/umax.h[1.6.2.1], microcode/scheme.h[9.38.2.1],
microcode/storage.c[9.56.2.1], microcode/syntax.c[1.24.2.1],
microcode/syscall.h[1.12.2.1], microcode/term.c[1.14.2.1],
microcode/termcap.c[1.6.2.1], microcode/terminfo.c[1.3.2.1],
microcode/trap.h[9.44.2.1],
microcode/unxutl/Attic/cf-dist.h[1.25.2.1],
microcode/unxutl/Attic/config[1.31.2.1],
microcode/unxutl/Attic/makefile[1.28.2.1],
microcode/unxutl/Attic/y300.lcl[1.24.2.1],
microcode/unxutl/Attic/y700.lcl[1.8.2.1],
microcode/unxutl/Attic/y800.lcl[1.2.2.1],
microcode/unxutl/Attic/ymake.sed[1.1.2.1],
microcode/unxutl/Attic/ymkfile[1.96.2.1],
microcode/unxutl/Attic/ynws3250.lcl[1.3.2.1],
microcode/utils.c[9.74.2.1], microcode/ux.c[1.19.2.1],
microcode/ux.h[1.73.2.1], microcode/uxctty.c[1.13.2.1],
microcode/uxenv.c[1.19.2.1], microcode/uxfile.c[1.9.2.1],
microcode/uxfs.c[1.19.2.1], microcode/uxio.c[1.44.2.1],
microcode/uxproc.c[1.25.2.1], microcode/uxsig.c[1.34.2.1],
microcode/uxsig.h[1.5.2.1], microcode/uxsock.c[1.25.2.1],
microcode/uxterm.c[1.27.2.1], microcode/uxtop.c[1.24.2.1],
microcode/uxtrap.c[1.29.2.1], microcode/uxtrap.h[1.28.2.1],
microcode/version.h[11.174.2.1], microcode/wabbit.c[1.7.2.1],
microcode/x11base.c[1.75.2.1], microcode/xdebug.c[9.33.2.1]:
* Convert microcode to use autoconf in place of custom configuration
mechanism. Change major version of microcode to 14 (skipping 12 and
13 that were used for unreleased versions).

* Write Scheme program to generate "Makefile.in" from a template.
This program automatically generates compilation dependencies, but
it depends on having gcc to do this.

I tried using automake to do this, but it's not powerful enough to
handle definition of a program in which the component files are
selected at configure time.

* Rename old "config.h" to "confshared.h". New "config.h"
automatically generated by autoconf on unix systems; hand-written
for Win32 and OS/2. Make sure all files now include "config.h".
Eliminate references to "oscond.h" and "posixtyp.h"; merge the
functionality of those files into "config.h". "confshared.h"
includes "ansidecl.h" so eliminate most references to the latter.
Completely rewrite "ux.h"; new revision is considerably simplified
since autoconf takes care of most of the details.

* Rename a number of preprocessor symbols:

OLD NAME NEW NAME
======== ========
WINNT __WIN32__
_HPUX __HPUX__
_IRIX __IRIX__
_OS2 __OS2__
_POSIX _POSIX_VERSION
_UNIX __unix__
__linux __linux__
i386 __IA32__
HAS_FLOOR HAVE_FLOOR
HAS_FREXP HAVE_FREXP
HAS_MODF HAVE_MODF
HAVE_APPEND O_APPEND
HAVE_BSD_TTY_DRIVER HAVE_SGTTY_H
HAVE_ITIMER HAVE_SETITIMER
HAVE_SYMBOLIC_LINKS HAVE_SYMLINK
HAVE_SYSV3_SIGNALS HAVE_SIGHOLD
HAVE_SYSV_SHARED_MEMORY USE_SYSV_SHARED_MEMORY
HAVE_TERMIO HAVE_TERMIO_H
HAVE_TERMIOS HAVE_TERMIOS_H
RELEASE SCHEME_RELEASE
SUBVERSION SCHEME_SUBVERSION
USE_HOSTENT_ADDR !HAVE_HOSTENT_H_ADDR_LIST
VERSION SCHEME_VERSION

* Change names containing "winnt" to contain "win32" instead.
Change names containing "i386" to contain "ia32" instead.

* Make numerous changes to eliminate warnings reported by "gcc -Wall".

* Modify PTY code to incorporate ideas from libzvt in GNOME. This
was needed to get unix98 PTYs working in GNU/Linux. Use runtime
test to decide if PTYs are available (in systems that lack grantpt),
since there's no way to determine this at configure or compile time.

* Use poll in preference to select if both are available. Previously
poll was used in one place and select in another.

* Use `tm_gmtoff' if it is available in `struct tm'. GNU libc and
FreeBSD both support `tm_gmtoff' with the same meaning. The
`timezone' variable is defined in FreeBSD, but with a completely
different meaning.

* Change handling of baud rates to make it more portable.

* Change handling of M4 files; implement new shell scripts to do
expansion while passing parameters on the command line. Always use
these scripts, since they are portable.

* Change default type-code length on systems with compiled-code
support to be 6 rather than 8. This simplifies the definition of
those systems since we were always overriding the type-code length
on them.

* Completely rewrite compilation dependencies for Win32 and OS/2
makefiles. New dependencies are quite detailed, directly reflect
the source code, should now be accurate.

* Eliminate all DOS files and all references to DOS. Eliminate all
the code for the case where WINNT_RAW_ADDRESSES was undefined, since
that was DOS-specific.

* microcode/acconfig.h[1.1]:
file acconfig.h was initially added on branch use-autoconf.

2000-11-26 Chris Hanson <[email protected]>

* imail/imap-response.scm[1.42]:
Add workaround for bug in Courier-IMAP.

* edwin/sendmail.scm[1.69]:
Add Emacs mail-sending feature that prompts for confirmation if user
tries to send same mail twice.

2000-11-20 Chris Hanson <[email protected]>

* runtime/chrsyn.scm[1.3], runtime/chrsyn.scm[1.2]:
Fix thinko.

2000-11-19 Chris Hanson <[email protected]>

* imail/imail-summary.scm[1.34]:
Change IMAIL-SUMMARY-POP-UP-MESSAGE-BUFFER to use POP-UP-BUFFER again.
This should fix the problem of over-splitting windows. Don't use
IMAIL-SUMMARY-POP-UP-MESSAGE-BUFFER for fixed layout; instead simplify
that logic to use WINDOW-SPLIT-VERTICALLY!. Eliminate
SYNC-IMAIL-SUMMARY-BUFFER which was used in only one place.

2000-11-13 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.220], imail/imail.pkg[1.78]:
Add variable imail-output-default at Hal's request.

2000-11-02 Chris Hanson <[email protected]>

* runtime/blowfish.scm[1.20]:
Eliminate restriction on blowfish encryption. New US crypto
regulations permit us to export this code now.

2000-10-30 Chris Hanson <[email protected]>

* edwin/curren.scm[1.141]:
Fix bug: previously, selecting one of the buffers of a visible layout
into a window that held a different buffer of that layout would leave
the layout marked as visible. This fix notices this case and unmarks
the layout. However, the selection of the buffer causes the layout to
be reselected, which means the operation has no net effect.

* edwin/comwin.scm[1.146]:
Don't delete a window if it's already deleted.

* edwin/debug.scm[1.53]:
Fix bug: SELECT-CONTINUATION-BROWSER-BUFFER called BROWSER-SELECT-LINE
assuming that the buffer it had specified for selection was already
selected; this turned out not to be true. So modify the code to pass
the buffer explicitly rather than depend on selection. Also tweak
code that prompts for X window geometry so that it re-prompts if the
user's input isn't valid.

* edwin/curren.scm[1.140]:
Fix bug: UNDO-LEAVE-WINDOW! was being called on the wrong window from
SELECT-SCREEN and SELECT-WINDOW. Also change order of arguments to
CHANGE-SELECTED-BUFFER to match order used most other places in this
file.

* edwin/basic.scm[1.140], edwin/prompt.scm[1.190]:
Don't abort prompt when an input event arrives; process the event and
restart the prompt. There may be subtle problems with this strategy;
find and fix them.

2000-10-28 Chris Hanson <[email protected]>

* imail/imail-summary.scm[1.33]:
Fix fencepost error that caused the wrong number of columns to be
allocated for the message number when the folder was exactly a power
of ten.

2000-10-27 Chris Hanson <[email protected]>

* imail/load.scm[1.21]:
Update version to reflect recent changes.

* edwin/wincom.scm[1.130]:
Deselect any buffer layout before popping up a new window.

* edwin/curren.scm[1.139]:
When killing buffer, it's possible to signal an error if there are no
other buffers. Previously, this error could have been signalled
_after_ the killing procedure had already killed off any buffer
process, run the kill hooks, etc. Now the error test is done first,
and if the error is signalled, no other action is taken.

* imail/imail-summary.scm[1.32]:
In previous change, forgot to select the folder buffer after creating
a new window to hold it.

Don't create a new window to hold the folder buffer if it is already
visible somewhere.

Simplify logic of layout selector now that SELECT-BUFFER will no
longer cause the layout selector to run again.

* edwin/curren.scm[1.138]:
Change MAYBE-SELECT-BUFFER-LAYOUT so that it does nothing if called
while running a layout selector; this will prevent infinite recursions
and that otherwise occur quite easily while instantiating the layout.

Simplify MAYBE-SELECT-BUFFER-LAYOUT so that it doesn't do anything
unless the layout is changing. Previously indirect tests were used,
now we just compare the current layout with the proposed layout and
implement the changes.

* edwin/buffer.scm[1.178]:
Allow ->BUFFER to take a window as an argument.

2000-10-26 Chris Hanson <[email protected]>

* imail/imail-summary.scm[1.31]:
Don't use POP-UP-BUFFER to split the window; use
WINDOW-SPLIT-VERTICALLY! instead. Also, tweak fixed layout generator
so that it doesn't go into infinite recursion.

* edwin/comwin.scm[1.145], edwin/curren.scm[1.137]:
Add code to mark buffer layout inactive when one of its windows is
deleted.

* edwin/hlpcom.scm[1.121]:
In WITH-OUTPUT-TO-HELP-DISPLAY, don't change window/buffer arrangement
until after the argument thunk has been executed.

* edwin/curren.scm[1.136]:
Adjust interrupt locking of buffer-layout code. When selecting buffer
layouts, ignore buffer selections in the typein window.

* edwin/xterm.scm[1.63]:
Fix long-standing bug that occurred when using multiple screens with a
window manager that supports multiple workspaces: switching workspaces
sometimes caused an error to be signalled by X-WINDOW-SET-INPUT-FOCUS.
The problem is that the workspace switch caused all of Edwin's windows
to be unmapped. Depending on the order in which the unmap events
arrived, Edwin might have queued a request to select another screen.
But since all of the screens were unmapped at the time the request was
processed, the attempt to set the input focus to one of these unmapped
screens always generated an error.

The fix eliminates the code that tried to select another screen.
Instead we depend on the window manager to tell us when another screen
needs to be selected.

* edwin/xterm.scm[1.62]:
Add event-tracing facility.

* imail/imail-top.scm[1.219]:
M-x imail-save-attachment should also work when invoked from the
summary buffer.

* imail/imail-summary.scm[1.30]:
Only create buffer-layout when summary buffer is created, not when it
is being reused.

* edwin/rfc822.scm[3.3]:
Fix bugs in address parsing, reported by hal.

* edwin/curren.scm[1.135]:
Don't call MAYBE-SELECT-BUFFER-LAYOUT unless the selected buffer has
really changed.

* imail/imail-summary.scm[1.29], imail/imail-top.scm[1.218],
imail/imail.pkg[1.77]:
Delete imail-auto-summary feature. Instead implement
imail-summary-fixed-layout feature that uses new buffer-layout
mechanism.

* edwin/curren.scm[1.134]:
Move call to MAYBE-SELECT-BUFFER-LAYOUT outside of WITHOUT-INTERRUPTS.
Also call MAYBE-SELECT-BUFFER-LAYOUT from MAKE-SCREEN.

* edwin/curren.scm[1.133]:
Fix indentation.

* edwin/wincom.scm[1.129]:
Fix thinko.

* edwin/curren.scm[1.132]:
Don't reselect an already-selected window or buffer.

* edwin/wincom.scm[1.128]:
Implement SCREEN option to POP-UP-BUFFER.

* edwin/curren.scm[1.131]:
Eliminate references to SELECT-BUFFER-IN-WINDOW. Change buffer-layout
mechanism so that it is called _after_ the initial buffer is selected.

* edwin/buffrm.scm[1.58], edwin/bufmnu.scm[1.131],
edwin/debug.scm[1.52], edwin/snr.scm[1.59], edwin/vc.scm[1.74]:
Eliminate references to SELECT-BUFFER-IN-WINDOW.

* edwin/curren.scm[1.130]:
Guarantee that all buffers in a buffer layout are alive at the time of
selection.

* edwin/curren.scm[1.129]:
Add some interrupt locking to buffer-layout mechanism. Fix thinko.

* edwin/make.scm[3.103]:
Update version to reflect new initialization mechanism.

* imail/imail-top.scm[1.217]:
Comment out call to ADD-PRE-SELECT-BUFFER-HOOK. This procedure is
about to be removed from Edwin. It will shortly be replaced by a
different mechanism.

* edwin/curren.scm[1.128]:
Eliminate pre-select-buffer-hooks mechanism from previous change.
This turns out not to work quite right for the problem at hand.
Instead implement a buffer-layout mechanism that should solve the
problem more neatly.

* edwin/comred.scm[1.121], edwin/dosproc.scm[1.5],
edwin/editor.scm[1.249], edwin/edwin.pkg[1.264],
edwin/input.scm[1.102], edwin/intmod.scm[1.110],
edwin/process.scm[1.58], edwin/prompt.scm[1.189]:
Implement general mechanism for initializing editor state when editor
is created.

2000-10-25 Chris Hanson <[email protected]>

* edwin/curren.scm[1.127]:
Add pre-selection buffer hooks. These hooks allow a buffer to
intercede in its selection.

2000-10-20 Chris Hanson <[email protected]>

* imail/imail.pkg[1.76]:
Forgot to export a couple of variables to implement auto-summary.

* imail/imail-summary.scm[1.28]:
Implement new editor variable imail-summary-height to allow the user
to specify the height of the summary buffer. Normally this is set to
1/4 making the summary 1/4 the height of the screen.

* edwin/wincom.scm[1.127]:
Add option to POP-UP-BUFFER to allow the argument to
WINDOW-SPLIT-VERTICALLY! to be supplied.

* imail/imail-top.scm[1.216], imail/imail.pkg[1.75]:
Add new editor variable imail-auto-summary that allows a summary
buffer to be automatically selected whenever an imail buffer is.

* imail/imail-rmail.scm[1.52]:
Fix bug: FLAGS->RMAIL-MARKERS was clobbering its argument to remove
the "seen" flag. This caused messages to be marked "unseen" when they
were written to an RMAIL file.

* imail/imail-core.scm[1.114], imail/imail-rmail.scm[1.51],
imail/imail-umail.scm[1.40]:
Fix bug: WRITE-HEADER-FIELDS was generating the blank-line separator,
but all of the callers assumed that it wasn't. So messages were being
written with an extra newline.

2000-10-19 Chris Hanson <[email protected]>

* imail/imail-umail.scm[1.39]:
Deal with errors coming from CTIME-STRING->UNIVERSAL-TIME. Add option
to WRITE-UMAIL-MESSAGE to suppress the IMAIL flags.

* runtime/datime.scm[14.33]:
Allow ctime() input strings to lack seconds field. This isn't
strictly correct but occurs sometimes on unix-mail from lines.

2000-10-17 Chris Hanson <[email protected]>

* microcode/uxsock.c[1.25]:
FreeBSD doesn't define socklen_t; add conditional definition.

2000-10-16 Chris Hanson <[email protected]>

* etc/Attic/bootstrap.sh[1.4]:
Fix some typos. Adjust script so that it can be called again on a
partially-processed tree.

* etc/Attic/bootstrap-compile.scm[1.7]:
Load CREF only if not already loaded.

* etc/Attic/build-tree.sh[1.4]:
Add back stuff for unsupported directories.

* etc/Attic/bootstrap.sh[1.3]:
Extensive changes to integrate microcode compilation into the script.

* microcode/unxutl/Attic/cf-dist.h[1.25]:
If using gcc, optimize and generate debugging info.

* microcode/unxutl/Attic/cf-dist.h[1.24]:
Generate optimized code by default.

* etc/Attic/bootstrap-compile.scm[1.6],
etc/Attic/bootstrap-compile.scm[1.5]:
Forgot to load CREF.

* etc/Attic/bootstrap-compile.scm[1.4]:
Fix typo.

* etc/Attic/bootstrap-compile.scm[1.3], etc/Attic/bootstrap.sh[1.2]:
Load files using stdin redirection.

* etc/Attic/bootstrap-compile.scm[1.2]:
Must load CREF before compiling other stuff.

* etc/Attic/bootstrap-compile.scm[1.1], etc/Attic/bootstrap.sh[1.1],
etc/Attic/build-compiler.scm[1.1], etc/Attic/build-edwin.scm[1.1],
etc/Attic/build-runtime.scm[1.1]:
Initial revision.

* etc/optiondb.scm[1.2]:
CREF loader not needed after all.

* etc/Attic/build-tree.sh[1.3]:
Eliminate unsupported directories.

* etc/Attic/build-tree.sh[1.2]:
Add copyright notice.

* etc/Attic/build-tree.sh[1.1]:
Imported from /scheme/etc/.

* etc/optiondb.scm[1.1]:
Moved from dist directory.

* microcode/option.c[1.54], microcode/version.h[11.174]:
If no band is explicitly specified, and the default band doesn't
exist, look for alternatives.

2000-10-14 Chris Hanson <[email protected]>

* runtime/version.scm[14.188]:
Update version number of runtime system to reflect change to semantics
of internal definitions. Update release number because it's time to
do another release.

* runtime/lambda.scm[14.16], runtime/lambdx.scm[14.9]:
Eliminate old optimization that reused lambda parameters for internal
definitions of the same name. This needlessly complicated the
semantics, and the optimization is no longer interesting (if it ever
was).

Thanks to the 6.001 staff for bringing this to my attention.

2000-10-01 Chris Hanson <[email protected]>

* microcode/uxsock.c[1.24]:
Fix bug: when a call to connect gets EINTR, one can't just restart the
connect, because it might be waiting for a packet from the other end
of the connection. Instead, it's necessary to wait for the connect to
finish (using select), and then check the SO_ERROR option to see if it
succeeded or failed.

* microcode/x11base.c[1.75]:
In X-WINDOW-CLEAR, if the clip rectangle is disabled, call
XClearWindow rather than XClearArea. This clears pixels in internal
border, if any.

* microcode/x11term.c[1.27]:
Fix bug: xterm_dump_rectangle, when given the coordinates of a window
that wasn't exactly a multiple of the character size, would dump
characters at the edges of the window. Instead, it must clip the
rectangle to the character size of the window.

* edwin/vc.scm[1.73]:
Fix bug: can't ever use absolute pathnames with CVS, because if
repository is remote they don't make sense.

2000-09-30 Chris Hanson <[email protected]>

* imail/imail-summary.scm[1.27]:
When using imail-summary-scroll-msg-* commands, if the message buffer
and summary buffer have different messages selected, change the
message buffer to match the summary buffer.

* imail/imail-top.scm[1.215]:
Don't count a message as unseen if it is deleted -- even if the SEEN
flag isn't set. It's common to delete messages without seeing them,
and the act of deletion is an indication that the user isn't
interested in seeing them.

However, don't mark these messages as seen; they might later be
undeleted, in which case they want to retain their unseen status.

2000-09-25 Chris Hanson <[email protected]>

* imail/todo.txt[1.111]:
Note regarding parsing in the presence of Rmail file corruption.

2000-09-11 Chris Hanson <[email protected]>

* imail/imail-rmail.scm[1.50]:
Make sure that Rmail messages have an internal time, even if it's
completely bogus.

* runtime/datime.scm[14.32]:
Compensate for old message data format that lacked seconds.

* runtime/datime.scm[14.31]:
Add workaround for very old arpanet message date format.

* edwin/modefs.scm[1.160]:
Bind VC keys only if VC is loaded.

2000-09-07 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.214]:
Add UTF-8 to list of known charsets.

2000-09-06 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.213], imail/imail-top.scm[1.212]:
Tweak adaptive-fill-regexp so that it accepts prefixes of the form "> >".

* edwin/fill.scm[1.70], edwin/tparse.scm[1.75], edwin/tparse.scm[1.74]:
Extensive redesign of OPERATE-ON-INDIVIDUAL-PARAGRAPHS, to treat
regions with different fill prefixes as separate paragraphs. This is
similar to what Emacs does but not exactly the same: we are more
strict about noticing prefix changes.

* edwin/htmlmode.scm[1.4], edwin/tparse.scm[1.73],
edwin/tximod.scm[1.24]:
Change paragraph-separate and paragraph-start so that they will work
when not at a line start. This is necessary so that they interact
properly with fill prefixes.

* edwin/fill.scm[1.69]:
Undo previous change -- it wasn't equivalent code.

* edwin/fill.scm[1.68]:
Simplify overly-complex logic.

2000-08-21 Chris Hanson <[email protected]>

* edwin/vc.scm[1.72]:
Change VC-BACKEND-LOCKING-USER so that it doesn't call
VC-WORKFILE-MODIFIED?. The problem is that the latter can call
VC-BACKEND-DIFF, which requires access to the CVS server. However,
since VC-BACKEND-LOCKING-USER is called by VC-MODE-LINE, this meant
that every time the mode-line changed, we had to probe the server.
This patch eliminates that requirement.

The patch also tries to notice the results of user-initiated diffs,
and update the mode-line's idea of whether the file is modified.
However, Emacs doesn't seem to behave quite the same way. Maybe this
is a bad idea and should be reverted.

2000-08-20 Chris Hanson <[email protected]>

* rcs/load.scm[1.2]:
Now need regular expressions.

* rcs/logmer.scm[1.27]:
Add code to strip off remote-repository prefix in "CVS/Root" files.
This assumes that the repository is actually local but is being
accessed using a remote mechanism.

The right thing to do might be to generate the log using cvs and then
merge it, but this is quite a pain.

2000-08-18 Chris Hanson <[email protected]>

* edwin/vc.scm[1.71]:
Eliminate use of absolute pathnames in CVS commands; this precludes
use of remote access methods.

* imail/imail-file.scm[1.59]:
Fix bug: copying messages from IMAP folder to umail folder didn't
work, because that operation depended on being able to get the message
body as a string. But the operation that provided the message body in
that format was eliminated.

* microcode/uxio.c[1.44]:
Don't use POLLNORM; use POLLIN instead.

2000-08-07 Chris Hanson <[email protected]>

* edwin/info.scm[1.135]:
Fix bug: directory node wasn't being correctly recorded in the info
history, causing the l command to fail.

* imail/load.scm[1.20]:
Update version to reflect changes to imail-summary keyboard bindings.

* imail/imail-summary.scm[1.26]:
Fix scrolling in summary buffer to be more like that of Rmail. Move
M-x imail-summary-select-message to #\e rather than #\space, since
#\space and #\rubout are needed by the scrolling commands.

2000-08-05 Chris Hanson <[email protected]>

* imail/imail-file.scm[1.58], imail/imail-imap.scm[1.144]:
Fix over-long pages.

* imail/imail-core.scm[1.113], imail/imail-file.scm[1.57],
imail/imail-imap.scm[1.143], imail/imail-summary.scm[1.25]:
Add new folder operation, PRELOAD-FOLDER-OUTLINES, which is a hint to
the folder implementation that the front end is about to request
header and length information for all messages in the folder. This
allows the folder to choose a more-optimal download strategy. The
operation is invoked by the folder-summary code.

Ad-hoc testing indicates that this has a qualitative effect on
performance for folders containing about 100 or more messages.

2000-08-02 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.142]:
Additional optimization: load flags with UIDs in initial download.

* imail/imail-imap.scm[1.141]:
Change slot reflectors: previously we loaded flags, length, and
headers for all messages when opening a folder and displaying it.
This took a long time for medium-sized folders. Now, load each of
these components separately. In particular, only the flags are needed
for most messages, so this considerably speeds up the initial load.

2000-07-28 Chris Hanson <[email protected]>

* edwin/abbrev.scm[1.5], edwin/bufmnu.scm[1.130],
edwin/debug.scm[1.51], edwin/os2.scm[1.50], edwin/sendmail.scm[1.68],
edwin/unix.scm[1.109], edwin/vc.scm[1.70], edwin/webster.scm[1.5],
edwin/wincom.scm[1.126], imail/imail-summary.scm[1.24]:
Change POP-UP-BUFFER in several ways: (1) SELECT? argument is now
required; (2) optional argument NOT-CURRENT-WINDOW? has been replaced
by a list of option symbols; (3) when popping into an existing window,
if it's the previously popped-up window, it's returned.

2000-07-21 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.211]:
Fix bug: allow user to specify no confirmation.

2000-07-20 Chris Hanson <[email protected]>

* edwin/sendmail.scm[1.67]:
Make sure continuation lines of mail-buffer headers are properly
indented.

2000-07-11 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.210]:
Change key binding of imail-summary-by-flags to be C-M-l for
compatibility with Rmail.

2000-07-09 Chris Hanson <[email protected]>

* rcs/logmer.scm[1.26]:
Another newline-convention tweak.

* rcs/mklogs.scm[1.20]:
Add imail documentation directory.

* imail/imail-imap.scm[1.140]:
Suppress user name in IMAP URL when it is same as current uname.

2000-07-08 Chris Hanson <[email protected]>

* imail/Attic/rexp.scm[1.15], runtime/rexp.scm[1.15]:
Fix harmless bug in REXP?

2000-07-07 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.139]:
Don't fire up IMAP connection just to determine container string of
URL. Instead, use namespace info only if already available.
Consequently restructure code that looks up/creates connections.

2000-07-05 Chris Hanson <[email protected]>

* edwin/sendmail.scm[1.66]:
Read non-text attachments in binary mode.

* imail/imail-top.scm[1.209]:
Use new GLOBAL-MAILER-VERSION-STRING.

* edwin/edwin.pkg[1.263], edwin/sendmail.scm[1.65]:
Add GLOBAL-MAILER-VERSION-STRING.

* imail/imail-file.scm[1.56]:
Fix bug in file URL parsing for DOS-style pathnames.

* imail/imail-file.scm[1.55]:
Add URL encode/decode to file URLs. Fix typo in
HEADER-FIELDS->INTERNAL-TIME.

* imail/imail-rmail.scm[1.49], imail/imail-umail.scm[1.38]:
Fix bug: code to create new file folders wasn't writing the folders
out.

* imail/imail-file.scm[1.54], imail/imail-file.scm[1.53],
imail/imail-rmail.scm[1.48], imail/imail-umail.scm[1.37],
imail/todo.txt[1.110]:
Change file URL syntax to obey RFC 1738.

* runtime/pathnm.scm[14.33], runtime/runtime.pkg[14.355]:
Define procedure HOST/TYPE-NAME.

* imail/imail-top.scm[1.208]:
In M-x imail-get-new-mail (and M-x imail), move to first unseen
message even if the server probe reveals no new mail. This is
important because the new mail is usually fetched by the background
probe thread.

* imail/imail-imap.scm[1.138]:
Reduce the traffic generated by completion code to determine if a
mailbox has inferiors or not.

* imail/imap-syntax.scm[1.16]:
Fix thinkos in mailbox-decoding procedure.

* imail/imap-syntax.scm[1.15]:
Fix thinko in previous change.

* imail/imap-syntax.scm[1.14]:
Fix some bugs in the IMAP URL parser.

* imail/imail-top.scm[1.207]:
When examining prompt history, ignore malformed URLs that generate
errors during parsing.

* imail/imap-syntax.scm[1.13]:
Fix bugs in IMAP mailbox encode/decode procedures.

* imail/imail-imap.scm[1.137]:
Add calls to mailbox encode/decode procedures. These should have been
put in long ago.

* imail/imail.pkg[1.73]:
Export mailbox-name encode/decode procedures.

* imail/imap-syntax.scm[1.12]:
Change mailbox-name encode/decode to accept either string or substring.

* imail/ed-ffi.scm[1.13]:
Adjust to reflect new packaging structure.

* imail/imail.pkg[1.74], imail/imail.pkg[1.72]:
"imail-umail" and "imail-rmail" should be in subfolders of
"imail-file".

2000-07-04 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.206]:
Fix infinite loop that occurs when expunging all messages in folder.

2000-07-03 Chris Hanson <[email protected]>

* imail/imap-response.scm[1.41], imail/imap-response.scm[1.40]:
Seriously simplify READ-LITERAL-TO-PORT by eliminating extra layer of
buffering.

* imail/imap-response.scm[1.39]:
Tweak.

* imail/imap-response.scm[1.38]:
Canonicalize argument order to list-reading procedures.

* imail/imap-response.scm[1.37]:
Fix two typos in READ-SET.

2000-07-02 Chris Hanson <[email protected]>

* imail/url.scm[1.8], runtime/Attic/url.scm[1.8]:
Fix two typos.

* imail/todo.txt[1.109]:
Trim some unnecessary items.

2000-07-01 Chris Hanson <[email protected]>

* imail/imail.pkg[1.71], imail/todo.txt[1.108]:
Redesign packaging to break up the monolithic core. There isn't very
much cross-reference between these files.

2000-06-30 Chris Hanson <[email protected]>

* imail/load.scm[1.19], runtime/version.scm[14.187]:
Update version to reflect impending release.

* edwin/make.scm[3.102]:
Update version to reflect changes to support IMAIL.

* imail/imail-top.scm[1.205], imail/imail-top.scm[1.204]:
Don't inline text/plain entities that have disposition ATTACHMENT.

* edwin/sendmail.scm[1.64]:
File attachments should always have a disposition of ATTACHMENT.

* imail/imail-imap.scm[1.136], imail/imail.pkg[1.70],
imail/imap-response.scm[1.36], imail/todo.txt[1.107]:
Integrate MIME decoding into reading of MIME body parts.
Large attachments are now read directly into files.

* imail/imail-imap.scm[1.135], imail/imail-top.scm[1.203]:
Change definition of CACHE? argument to WRITE-MIME-MESSAGE-BODY-PART.
Now it may take the following values:

#F don't cache
#T cache
<n> conditionally cache; length of part is <n>

* imail/imail-imap.scm[1.134]:
Generalize IMAP:CATCH-NO-RESPONSE and use it in %APPEND-MESSAGE.

* imail/imail-core.scm[1.112], imail/imail-file.scm[1.52],
imail/imail-imap.scm[1.133]:
Eliminate unused AVAILABLE-FOLDER-NAMES. This capability is available
from the completion operations.

* imail/imail-imap.scm[1.132]:
Fix bug that caused server greeting to be thrown away. Change
handling of delimiter and namespace information, so that they are
set by the front end rather than that back end.

* imail/imail-imap.scm[1.131]:
Now that IMAP URLs use a slash delimiter, I think it looks better to
use the base name as the name of the buffer.

* imail/todo.txt[1.106]:
Reprioritize list. Change category of APPEND-MESSAGES. Eliminate
proposed option to quote original in replies using MIME.

* imail/todo.txt[1.105]:
Don't bother with support for compressed mail files. This isn't as
important as I thought it was.

* imail/todo.txt[1.104]:
Don't do anything special with "flagged" flag.

* imail/imail-file.scm[1.51]:
Fix bug: file completion wasn't working right if the pathname being
completed ended in a directory separator.

* imail/imail-file.scm[1.50], imail/imail-rmail.scm[1.47],
imail/imail-umail.scm[1.36]:
Simplify handling of file-URL completion: this is now identical for
all file URLs, so have only one method for that class.

* imail/imail-rmail.scm[1.46], imail/imail-umail.scm[1.35],
imail/todo.txt[1.103]:
Modify RMAIL file reader to handle mixed RMAIL/umail files, as does
the real RMAIL. We don't bother with MMDF format, since that isn't
used by any real systems any longer.

2000-06-29 Chris Hanson <[email protected]>

* imail/print.sh[1.8]:
Change presentation order to place IMAP implementation ahead of file
implementation.

* imail/imail-core.scm[1.111], imail/imail-rmail.scm[1.45],
imail/imail-top.scm[1.202], imail/imail-util.scm[1.29],
imail/todo.txt[1.102]:
Revise representation of header-field objects, so that RFC-822 quoting
mechanism isn't part of the representation. Value string of a header
is now arbitrary text, and there is an explicit mechanism for
converting the header value to RFC-822 format, by prepending tabs onto
continuation lines.

Additionally, there should no longer be any possibility of a low-level
error being generating when parsing header fields of incoming messages.

* imail/imail-imap.scm[1.130]:
Change IMAP URLs to use / instead of server delimiter.

* imail/imail-imap.scm[1.129]:
Assume that heirarchy delimiter and NAMESPACE information never
change. Once information is cached, never erase it.

* imail/imail-imap.scm[1.128]:
Reduce extent of a few calls to WITH-OPEN-IMAP-CONNECTION. Fix
missing method specialization.

* imail/imail-top.scm[1.201]:
Clarify selector-interpretation logic in SELECT-MESSAGE.

* imail/imail-top.scm[1.200]:
Fix pagination.

* imail/imail-imap.scm[1.127], imail/todo.txt[1.101]:
Fix IMAP URL completion so that folders that both are selectable and
have subfolders appear twice in the completions list, once with the
hierarchy delimiter, and once without.

* imail/todo.txt[1.100]:
Note about making IMAP URL completion handle folders that contain both
messages and subfolders.

2000-06-27 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.199], imail/imail.pkg[1.69]:
Restrict M-x imail-save-attachment to work only on attachments, not on
in-line MIME parts. Implement M-x imail-mouse-save-mime-entity and
M-x imail-save-mime-entity. Rename M-x imail-toggle-attachment to M-x
imail-toggle-mime-entity.

* imail/imail-top.scm[1.198], imail/imail-top.scm[1.197]:
Decode BinHex 4.0 attachments.

* runtime/mime-codec.scm[14.8]:
Add code to extract the data fork from a BinHex 4.0 input stream.
BinHex support is now complete.

* runtime/mime-codec.scm[14.7]:
Implement more flexible rule for matching initial comment and colon of
BinHex input.

* runtime/mime-codec.scm[14.6]:
Change terminology: BinHex "decompression" -> "run-length decoding".

* imail/imail-top.scm[1.196]:
Change behavior of M-x imail-forward so that negative argument means
send with raw headers. Eliminate MIME-ONLY value of
imail-forward-all-headers, as it's no longer needed.

* imail/imail-top.scm[1.195]:
Fix bug: key binding for M-x imail-toggle-message was already in use.

2000-06-26 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.194]:
Move MIME-decoding output ports to runtime system.

* runtime/mime-codec.scm[14.5], runtime/runtime.pkg[14.354]:
Implement BinHex decompressor.

* imail/imail-top.scm[1.193], imail/imail.pkg[1.68],
imail/todo.txt[1.99]:
Show message in modeline of all buffers when there is unseen mail.
Variable imail-global-mail-notification controls this feature.

* imail/imail-top.scm[1.192], imail/imail-top.scm[1.191]:
When prompting for MIME info, if there's only one choice, don't bother
prompting.

* imail/imail-top.scm[1.190], imail/imail.pkg[1.67],
imail/todo.txt[1.98]:
Implement M-x imail-toggle-attachment, which allows any part of a
MIME-encoded message to be toggled between "in-line" and "out-of-line"
format. This is most useful for expanding small text attachments
without writing them to a file first.

* edwin/simple.scm[1.52], edwin/simple.scm[1.51]:
Add additional procedures for searching through the space of text
properties.

* imail/imail-top.scm[1.189], imail/imail.pkg[1.66],
imail/todo.txt[1.97]:
Implement variable imail-mime-show-alternatives.

2000-06-24 Chris Hanson <[email protected]>

* imail/imail-core.scm[1.110], imail/imail-imap.scm[1.126],
imail/imail-top.scm[1.188]:
Fix bug: when current message and subsequent messages simultaneously
deleted, was signalling an error, because the EXPUNGE responses were
being processed one at a time, and the local model of the folder was
out of sync with the server's model. New strategy defers dealing with
all of these changes until all of the responses have been processed,
at which time both models are again synchronized.

* imail/imail-top.scm[1.187], imail/imail-top.scm[1.186]:
Fix problem with previous change: shouldn't automatically select new
message when folder grows. Instead, stay on current message unless
it is deleted.

2000-06-23 Chris Hanson <[email protected]>

* imail/imail-file.scm[1.49], imail/imail-file.scm[1.48],
imail/imail-rmail.scm[1.44], imail/todo.txt[1.96]:
Preserve internal time when copying to rmail folder from any other
type of folder, by writing a distinguished header field into the rmail
file.

* imail/imail-imap.scm[1.125], imail/imail-top.scm[1.185],
imail/todo.txt[1.95]:
Fix bug: when IMAP mailbox simultaneously accessed from two places,
IMAIL wouldn't correctly update the message buffer under a variety of
circumstances. This turned out to be a confluence of several bugs in
the code.

* imail/imail-imap.scm[1.124]:
Fix fencepost error.

* imail/imail-core.scm[1.109]:
Add folder events to IMAP trace facility.

* imail/imail-top.scm[1.184]:
Extend imail-forward-all-headers to have value MIME-ONLY.

2000-06-22 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.183]:
Mail buffer must have adaptive-fill regexps adjusted so that C-M-y
works right.

* imail/imail-top.scm[1.182], imail/todo.txt[1.94]:
Use new hook to modify the "User-Agent" header.

* edwin/sendmail.scm[1.63]:
Change "X-Mailer" to "User-Agent"; add hook to allow mail reader to
modify this string.

* runtime/ed-ffi.scm[1.24]:
Add missing entry for mime-codec.

* runtime/mime-codec.scm[14.4], runtime/runtime.pkg[14.353],
runtime/runtime.pkg[14.352], runtime/runtime.pkg[14.351]:
First cut at BinHex support. This just does the decoding, without
understanding the structure of the data stream.

2000-06-20 Chris Hanson <[email protected]>

* imail/todo.txt[1.93]:
Note regarding bug with multiple simultaneous access.

* imail/imail-rmail.scm[1.43]:
Tweak layout.

* imail/imail-core.scm[1.108], imail/imail-file.scm[1.47]:
Define HEADER-FIELD-LENGTH.

* imail/imail-file.scm[1.46], imail/imail-rmail.scm[1.42],
imail/imail-umail.scm[1.34], imail/todo.txt[1.92]:
Allow file completion to complete to any file.

* imail/imail-core.scm[1.107]:
Repaginate.

* imail/imail-core.scm[1.106]:
Allow arbitrary whitespace in IMAIL flags header, so that flags lines
can be folded.

* imail/todo.txt[1.91], imail/todo.txt[1.90]:
Expand on note regarding header-field representation.

* imail/imail-summary.scm[1.23]:
Fix some thinkos.

* imail/imail-top.scm[1.181]:
Simplify decision tree in CALL-WITH-AUTO-WRAPPED-OUTPUT-MARK.

* imail/imail-top.scm[1.180]:
Share similar code from IMAIL-YANK-ORIGINAL and SELECT-MESSAGE.

* imail/imail.pkg[1.65]:
Export M-x imail-toggle-header.

* imail/imail-top.scm[1.179]:
Redefine variable imail-mime-attachment-directory to be an override of
the default behavior, which is to track the last directory written to.

* imail/imail-top.scm[1.178]:
Share code that copies all messages from one folder to another.

* imail/imail-top.scm[1.177]:
Fix typo.

* imail/imail-top.scm[1.176]:
Change binding of imail-toggle-message to #\c-t.

* imail/imail-top.scm[1.175]:
Fix bug: last change to IMAIL-MODE-LINE-SUMMARY-STRING had thinko that
caused an error when viewing an empty mailbox.

2000-06-19 Chris Hanson <[email protected]>

* imail/todo.txt[1.89]:
Add some new ideas from one of the reviews.

* imail/imail-top.scm[1.174]:
Always show message counts and folder length in modeline. It's
confusing to omit this.

* imail/imail-core.scm[1.105], imail/imail-top.scm[1.173]:
Change definition of GET-ALL-HEADER-FIELD-VALUES to return a list of
strings, rather than a comma-separated string.

* edwin/pwedit.scm[1.8]:
Rework handling of buffer properties so that command to toggle
password field works anywhere in the field.

* imail/imail-imap.scm[1.123]:
Fix bug: when fetching MIME message part, must guarantee that the
connection is open.

* imail/imail-top.scm[1.172], imail/todo.txt[1.88]:
Reimplement M-x imail-toggle-header (in addition to
imail-toggle-message).

* imail/imail-top.scm[1.171], imail/todo.txt[1.87]:
Fix code that yanks original message into reply buffer. Now the
yanked code looks just like the formatted code in the original
buffer, except that there are no attachments, and the line wrapping is
adjusted to account for the indentation.

* imail/clean.sh[1.2]:
Fix typo.

* imail/todo.txt[1.86]:
New strategy for yanking MIME messages into reply buffer.

* imail/imail-core.scm[1.104], imail/imail-file.scm[1.45],
imail/imail-imap.scm[1.122], imail/imail-rmail.scm[1.41],
imail/imail-umail.scm[1.33]:
Change interface for retrieving message bodies so that the body isn't
always returned as a string, but instead is written to a port. This
will allow IMAP message to write their bodies directly to files, which
is especially important for bodies that are too large to fit in memory.

* imail/imail-top.scm[1.170]:
Fix bug: empty folder wasn't noticing new messages being added.

* imail/imail-top.scm[1.169]:
Fix bug: when expunging last message in folder, IMAIL was generating
an error.

* imail/imail-util.scm[1.28]:
Simplify implementation of broken-pipe handler so that parts can be
reused.

* imail/imail-imap.scm[1.121]:
Redo previous fix; was shutting down connection in cases where it
shouldn't have.

2000-06-18 Chris Hanson <[email protected]>

* imail/imail-core.scm[1.103], imail/imail-top.scm[1.168],
imail/imail.pkg[1.64]:
A handful of bug fixes, plus some clarifications.

* edwin/prompt.scm[1.188], edwin/prompt.scm[1.187]:
Change PROMPT-HISTORY-STRINGS and SET-PROMPT-HISTORY-STRINGS! so that
the history name may be #F, meaning use the default history.

2000-06-17 Chris Hanson <[email protected]>

* imail/todo.txt[1.85]:
Note re imail-toggle-headers.

2000-06-16 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.167]:
Fix thinko.

* imail/imail-summary.scm[1.22], imail/imail-top.scm[1.166],
imail/imail-top.scm[1.165], imail/imail-top.scm[1.164],
imail/imail.pkg[1.63], imail/load.scm[1.18]:
Large-scale editing pass over the front-end code. Code should now be
clearer and better organized.

* imail/imail-core.scm[1.102], imail/imail-file.scm[1.44],
imail/imail-rmail.scm[1.40]:
Eliminate notes that have been moved to todo file.

* edwin/sendmail.scm[1.62]:
Set NAME parameter on MIME file attachments. Change key bindings in
attachment browser; shouldn't use #\- for a command.

* imail/imail-core.scm[1.101], imail/imail-file.scm[1.43]:
Change status symbol FOLDER-MODIFIED to CACHE-MODIFIED.

2000-06-15 Chris Hanson <[email protected]>

* imail/print.sh[1.7]:
Remove rfc822.scm from printout.

* imail/imail-top.scm[1.163]:
Don't add gratuitous newlines to message presentation.

* edwin/sendmail.scm[1.60]:
Add attachments in time order; previous was reversed.

* imail/imap-response.scm[1.35]:
Be very careful not to read beyond the end of a literal, as this might
hang.

* imail/imail-imap.scm[1.120]:
If IMAP command doesn't complete normally, close the connection.

* edwin/edwin.pkg[1.262], edwin/sendmail.scm[1.59]:
Implement MIME attachment browser, with commands to add and delete
attachments.

* edwin/sendmail.scm[1.58]:
Implement mime-attachments buffer for editing message attachments.

* imail/imail-top.scm[1.162]:
Respect INLINE disposition if present.

* imail/imail-imap.scm[1.119]:
Fix bug: don't try to send LOGOUT command when socket is closed.

* imail/imail-summary.scm[1.21]:
Fix harmless typo.

* imail/imail-top.scm[1.161], imail/imail-top.scm[1.160],
imail/imail.pkg[1.62], imail/todo.txt[1.84]:
Implement variable imail-inline-mime-text-subtypes.

* imail/imail-top.scm[1.159], imail/imail.pkg[1.61]:
Implement M-x imail-first-unseen-message.

* imail/todo.txt[1.83]:
Made changes to mime-codec to improve speed of quoted-printable
decoder.

* runtime/mime-codec.scm[14.3]:
Use substring search to speed up quoted-printable decoder.

* imail/todo.txt[1.82]:
Potpourri of notes, and new section on MIME conformance.

* imail/todo.txt[1.81]:
Note regarding integration of MIME decoding into the MIME body reader.

* edwin/fill.scm[1.67], edwin/fill.scm[1.66]:
Fix fencepost error.

* imail/imail-top.scm[1.158]:
Use new line-wrapping facility in Edwin. Hopefully this will be fast
enough to eliminate tedious delay of previous implementation.

* edwin/fill.scm[1.65]:
Implement procedures to wrap lines in paragraphs.

* edwin/sendmail.scm[1.61], imail/imail-summary.scm[1.20]:
Fix typo.

* imail/imail-summary.scm[1.19], imail/imail-top.scm[1.157],
imail/imail.pkg[1.60], imail/imail.pkg[1.59]:
Implement new commands:
imail-bury
imail-next-same-subject
imail-previous-same-subject

* imail/imail-summary.scm[1.18], imail/imail-top.scm[1.156],
imail/imail.pkg[1.58]:
Implement M-x imail-summary-by-regexp and M-x imail-summary-by-topic.
Latter doesn't support WHOLE-MESSAGE option of Emacs because that
would be dreadfully inefficient using IMAP.

* imail/imail-top.scm[1.155]:
In description for imail-mode, don't show variables for
imail-summary-mode. Also, show value for each variable.

* imail/imail-top.scm[1.154]:
Reconcile the key bindings with those of RMAIL in Emacs version 20.
Use new dynamically-generated help string feature of Edwin to generate
the mode description for imail-mode.

* edwin/hlpcom.scm[1.118]:
Extend help output procedures to accept a port as an argument.

* edwin/comman.scm[1.84], edwin/docstr.scm[1.5], edwin/docstr.scm[1.4],
edwin/edwin.ldr[1.72], edwin/edwin.ldr[1.71],
edwin/hlpcom.scm[1.120], edwin/hlpcom.scm[1.119],
edwin/hlpcom.scm[1.117], edwin/modes.scm[1.33],
edwin/prompt.scm[1.186]:
Allow description of a command, variable, or mode to be a thunk that
evaluates to a string.

2000-06-14 Chris Hanson <[email protected]>

* imail/todo.txt[1.80]:
Add two suggestions from radhi.

* imail/imail-top.scm[1.153], imail/imail.pkg[1.57]:
Always inline top-level MIME text parts, even if the subtype isn't
"plain". Also, define new variable imail-known-mime-charsets, to
allow the user to add other character sets that may be inlined.

* imail/imail-imap.scm[1.118]:
Change IMAP URL completion to work more like filename completion:
completion shows only the elements at the top level of the mailbox
being completed on. Furthermore, non-selectable mailboxes are
suffixed with the heirarchy delimiter to cue the user.

* edwin/sendmail.scm[1.57]:
Don't abbreviate MIME header fields in the header; only in subparts of
a multipart message.

* imail/imail-top.scm[1.152], imail/imail.pkg[1.56],
imail/todo.txt[1.79]:
Implement variable imail-forward-using-mime to allow the user to
disable the use of MIME for message forwarding.

* imail/imail-core.scm[1.100], imail/imail-file.scm[1.42],
imail/imail-imap.scm[1.117], imail/imail-rmail.scm[1.39],
imail/imail-top.scm[1.151], imail/imail-umail.scm[1.32],
imail/todo.txt[1.78]:
When renaming a folder, the default for the target is the container
for the source. When copying a folder, the default for the target is
the base name of the source, merged into the container of the most
recent copy target.

2000-06-13 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.150], imail/todo.txt[1.77]:
Change M-x imail-get-new-mail so that it selects the first unseen
message, or does nothing otherwise. This will be more robust when
resynchronizing the folder, and will also provide a command to move to
the first unseen message.

2000-06-12 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.149], imail/imail.pkg[1.55]:
Implement variable imail-forward-all-headers.

* edwin/edwin.pkg[1.261], edwin/sendmail.scm[1.56]:
Add new variable mail-abbreviate-mime to control verbosity of MIME
headers generated.

* edwin/sendmail.scm[1.55]:
Fix typo: "Content-Encoding" -> "Content-Transfer-Encoding".

* edwin/edwin.pkg[1.260], edwin/sendmail.scm[1.54],
edwin/snr.scm[1.58], imail/todo.txt[1.76]:
Insert X-Mailer and Organization fields after user finished editing
message, rather than cluttering up the user's buffer with them.

* imail/imail-top.scm[1.148]:
Fix bug: imail-resend not selecting buffer.

2000-06-11 Chris Hanson <[email protected]>

* edwin/mousecom.scm[1.5]:
Use recommended scrolling of 5 lines rather than 10.

* edwin/modefs.scm[1.159], edwin/mousecom.scm[1.4]:
Add hack to utilize mouse wheel under X.

* imail/imail-summary.scm[1.17]:
Add bindings for up/down arrow keys, for mouse button one, and for
mouse buttons 4 and 5 (scroll buttons on wheel mice).

2000-06-10 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.116], imail/todo.txt[1.75]:
Use NAMESPACE information to setup prefix to URL prompts.

* imail/imail-imap.scm[1.115], imail/imail.pkg[1.54],
imail/imap-response.scm[1.34]:
If server supports the NAMESPACE extension, use it to get namespace
information and store it in the connection object.

* imail/todo.txt[1.74]:
Note re: NAMESPACE feature.

2000-06-09 Chris Hanson <[email protected]>

* imail/todo.txt[1.73]:
Potpourri.

* imail/todo.txt[1.72]:
Note to change handling of "informational" headers in sent mail.

* imail/imail-top.scm[1.147], imail/imail.pkg[1.53]:
Eliminate variable imail-receive-mime. User can toggle message to raw
form to get similar effect.

* imail/imail-top.scm[1.146]:
Take advantage of new MIME support in the mail-sending code. Forward
messages as attachments, and disable all MIME processing when
resending messages.

* edwin/edwin.pkg[1.259], edwin/sendmail.scm[1.53]:
Another pass at the MIME stuff. This one seems to work OK, by
providing a way for imail-resend to disable MIME processing. (Also,
all MIME headers are stripped out before building up the MIME
framework.) This code now supports MIME attachments, although there
needs to be a command to allow the user to attach a file or the
original mail message (if any), and also there needs to be an
attachment browser.

2000-06-08 Chris Hanson <[email protected]>

* edwin/sendmail.scm[1.52]:
Disable MIME-compliance checks. There are strange interactions
between them and forwarding/resending that cause trouble, and I don't
have time to fix it right now.

* imail/imail-top.scm[1.145]:
Don't allow user to edit resent mail.

* edwin/sendmail.scm[1.51], edwin/sendmail.scm[1.50]:
Initial attempt to guarantee MIME compliance when sending messages.

* runtime/mime-codec.scm[14.2]:
Fix bug: MIME requires that quoted-printable encodings use upper-case
characters for hex digits.

* imail/imail-top.scm[1.143]:
Fix typo.

* edwin/edwin.pkg[1.258], edwin/occur.scm[1.5]:
Create new interface for programmatic invocation of M-x occur.

* imail/todo.txt[1.71]:
Notes regarding insertion of messages into outgoing mail.

* imail/imail-top.scm[1.142]:
Change sending of mail so that insertion of original mail into sent
mail doesn't just use the formatted text from the IMAIL buffer, but
instead uses the original message body.

* imail/imail-core.scm[1.99]:
Extend ->HEADER-FIELDS to accept a string.

* edwin/sendmail.scm[1.49], edwin/sendmail.scm[1.48]:
Add hook to allow custom hook to run when yanking original message
into reply buffer.

* imail/imail-top.scm[1.141]:
Fix typo in previous change.

* imail/Attic/rfc822.scm[1.10], imail/compile.scm[1.10],
imail/ed-ffi.scm[1.12], imail/fake-env.scm[1.4],
imail/imail.pkg[1.52], imail/load.scm[1.17]:
Move RFC-822 support to Edwin proper.

* edwin/decls.scm[1.69], edwin/ed-ffi.scm[1.50], edwin/edwin.ldr[1.70],
edwin/edwin.pkg[1.257], edwin/rfc822.scm[3.2], edwin/rfc822.scm[3.1],
edwin/rmail.scm[1.71], edwin/sendmail.scm[1.47], edwin/snr.scm[1.57]:
Import RFC-822 support from IMAIL.

* imail/imail-top.scm[1.140], imail/todo.txt[1.70]:
Show alternative forms as attachments in MIME multipart/alternative.
Don't show text messages with unknown encodings.

* imail/Attic/mime-codec.scm[1.11], imail/compile.scm[1.9],
imail/ed-ffi.scm[1.11], imail/imail.pkg[1.51], imail/load.scm[1.16],
imail/load.scm[1.15], runtime/mime-codec.scm[14.1],
runtime/optiondb.scm[1.9], runtime/runtime.pkg[14.350]:
Move MIME codecs from IMAIL into the runtime system.

* imail/imail-top.scm[1.139], imail/todo.txt[1.69],
imail/todo.txt[1.68]:
Restrict set of recognized character sets to US-ASCII, ISO-8859, and
Windows-<n>. Messages in other sets are treated as unknowns;
character set appears in attachment descriptor.

* imail/imail-top.scm[1.138]:
Change key binding of imail-copy-folder to C to be consistent with
Dired.

* imail/imail-top.scm[1.137]:
Fix documentation for M-x imail-rename-folder.

* imail/imail-top.scm[1.136], imail/imail.pkg[1.50]:
Implement M-x imail-rename-folder.

* imail/Attic/mime-codec.scm[1.10], imail/imail-top.scm[1.144]:
Fix compiler warning.

* imail/imail-top.scm[1.135], imail/imail.pkg[1.49],
imail/todo.txt[1.67]:
Rewrite to use new MIME codecs. Merge two auto-wrap variables into
one. Trailing newline no longer part of attachment's marked region.

* imail/Attic/mime-codec.scm[1.9]:
Rewrite the quoted-printable decoder, again. This one is much simpler
and works.

2000-06-07 Chris Hanson <[email protected]>

* imail/Attic/mime-codec.scm[1.8], imail/imail.pkg[1.48]:
Complete redesign of the MIME codecs. This design is mostly working,
except for the quoted-printable decoder, which is too complicated and
still has some subtle bugs.

* imail/todo.txt[1.66]:
Notes re incorrect selection by M-x imail-get-new-mail.

* imail/todo.txt[1.65]:
Various notes regarding handling of MIME type and encoding.

* runtime/advice.scm[14.17]:
Fix another place still using the old newline convention.

2000-06-05 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.114]:
Undo previous change. This was being handled elsewhere and was never
removed from the to-do list.

* imail/imail-imap.scm[1.113], imail/imail-top.scm[1.134],
imail/todo.txt[1.64]:
Generate message "No changes to save." from SAVE-FOLDER on an IMAP
folder.

* imail/imail-imap.scm[1.112], imail/imail-top.scm[1.133],
imail/todo.txt[1.63]:
Rename the procedures that form the UI callback interface to make it
clear what their role is.

* imail/imail-top.scm[1.132]:
When auto-wrap enabled, wrap at right margin rather than at
fill-column. Also, don't set truncate-lines.

* imail/imail-core.scm[1.98], imail/imail-imap.scm[1.111],
imail/imail-rmail.scm[1.38], imail/imail-top.scm[1.131],
imail/imail-umail.scm[1.31], imail/imail.pkg[1.47]:
Unify handling of body cache. Add editor variable to control the
caching.

* imail/imail-top.scm[1.130], imail/imail.pkg[1.46],
imail/todo.txt[1.62]:
Replace imail-toggle-headers with imail-toggle-message, which toggles
between the standard and raw formats of a message.

* imail/imail-top.scm[1.129]:
Update imail-mode help.

* edwin/hlpcom.scm[1.116]:
Make help buffers read-only.

* imail/imail-imap.scm[1.110]:
Fix bug: a couple of places explicitly referenced the flag "\\recent"
which was changed to "recent".

* imail/imail-imap.scm[1.109]:
When reading entire body of MIME message, use MESSAGE-BODY.

* imail/imail-top.scm[1.128], imail/todo.txt[1.61]:
Fix bug: When message was selected in IMAIL and deleted by a different
user agent, IMAIL would end up in state where there is no selected
message. Now, it selects another message.

* imail/imail-core.scm[1.97], imail/imail-imap.scm[1.108],
imail/imail-top.scm[1.127]:
Change interface to MESSAGE-MIME-BODY-PART to specify whether to cache
the part.

* edwin/basic.scm[1.139]:
Fix thinko from last change.

* imail/imail-imap.scm[1.107], imail/todo.txt[1.60]:
Store bodystructure in IMAP message in converted form, so conversion
only happens once.

* imail/imail-top.scm[1.126], imail/todo.txt[1.59]:
Change attachment tag to show length of attachment.

* imail/imail-imap.scm[1.106], imail/todo.txt[1.58]:
Add cache for MIME body parts.

* imail/imail-imap.scm[1.105]:
Save server capabilities for later reference.

* imail/imail-imap.scm[1.104]:
Map all IMAP system flags to names without leading backslash.

* imail/todo.txt[1.57]:
Add some new items.

* imail/imail-top.scm[1.125]:
Fix bug: don't signal error if attachment lacks a filename parameter.

2000-06-03 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.103]:
Fix bug: STATUS command returns a response! (Duh)

* imail/imail-top.scm[1.124]:
When saving attachment, check to see if file exists before blindly
overwriting it.

* imail/Attic/mime-codec.scm[1.7]:
Change decoders to decode to a port rather than to a string. This is
almost always more efficient.

* imail/imail-top.scm[1.123]:
Implement mechanism to save MIME attachments. Reorganize this file a
little to make sections more coherent.

2000-06-02 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.122]:
Add workaround for broken Netscape mailer.

* imail/imail-core.scm[1.96]:
Change MIME bodystructure objects to have properties.

* imail/imail-top.scm[1.121]:
Tweak attachment syntax slightly.

* edwin/things.scm[1.88]:
Eliminate usage of MARK-PERMANENT!.

* imail/todo.txt[1.56]:
Ideas about MIME stuff.

* imail/imail-top.scm[1.120]:
Fix bug in how message/rfc822 entities were presented (headers were
being shown twice). Change text representation of attachments, and
binding information to the buffer so that the attachment can later be
saved.

* imail/imail-imap.scm[1.102]:
Fix bug: MIME disposition wasn't being converted to canonical form.

* imail/imail-core.scm[1.95]:
Add MIME-BODY-PARAMETER.

* imail/install.sh[1.4]:
Update to reflect new organization.

* imail/todo.txt[1.55]:
Remove two suggestions prompted by Julie's problems with automatic
conversion to quoted-printable.

* imail/imail-top.scm[1.119]:
Show "text/plain" entities regardless of character set. There are
some pretty broken mailers out there (e.g. Outlook Express) that claim
random character sets when they should be claiming "us-ascii".

* imail/imail-core.scm[1.94]:
Print out <MIME-BODY> instances in more intelligible form.

* imail/imail.pkg[1.45], imail/load.scm[1.14]:
Move Edwin variable exports back to "imail.pkg". Add subsystem ID
string for IMAIL.

* imail/imail-top.scm[1.118]:
Refine the auto-wrap feature to have separate controlling variables
for encoded and unencoded parts.

Fix URL completion so that it verifies values correctly by calling
URL-EXISTS?, and change callers to specify when the URL they are
prompting for must exist.

* imail/imail-imap.scm[1.101], imail/todo.txt[1.54]:
Implement URL-EXISTS? for IMAP folders.

* imail/imail-top.scm[1.117]:
Add automatic wrapping of long lines in decoded MIME entities.

* imail/imail-imap.scm[1.100]:
Show progress when reading MIME body parts.

* edwin/basic.scm[1.138], edwin/fill.scm[1.64]:
Change AUTO-FILL-BREAK so that it accepts a mark as an argument, and
returns a boolean indicating whether it broke the line.

2000-06-01 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.116], imail/imail.pkg[1.44],
imail/load.scm[1.13]:
Initial cut at MIME decoding support.

* imail/imail-imap.scm[1.99]:
Generalize MESSAGE-MIME-BODY-PART to allow passing selector ending in
HEADER or TEXT.

* imail/imail.pkg[1.43]:
Load "mime-codec" after "imail-util" due to load-time dependencies.

* imail/imap-response.scm[1.33]:
Signal an error if unable to parse BODY section in FETCH response.

* imail/Attic/parser.scm[1.4]:
Fix two bugs in LIST-PARSER.

* imail/imail-imap.scm[1.98]:
Store MIME multipart components in a list rather than a vector.

* imail/Attic/mime-codec.scm[1.6]:
When decoding BASE64 text strings, must return two values.

* imail/imail-core.scm[1.93], imail/imail-imap.scm[1.97]:
Implement MESSAGE-MIME-BODY-PART.

* imail/imail.pkg[1.42], imail/imap-response.scm[1.32]:
Implement IMAP:RESPONSE:FETCH-BODY-PART.

* imail/Attic/mime-codec.scm[1.5]:
Fix compiler warnings.

* imail/compile.scm[1.8], imail/ed-ffi.scm[1.10],
imail/imail.pkg[1.41]:
Add "mime-codec" to package.

* imail/Attic/mime-codec.scm[1.4]:
Add newline translation to BASE64 decoder for case where the data
being decoded is text.

* imail/imail-core.scm[1.92], imail/imail-file.scm[1.41],
imail/imail-imap.scm[1.96]:
Add generic interface to access MIME BODYSTRUCTURE information.

* imail/imap-response.txt[1.6]:
Fix two bugs in syntax.

* imail/Attic/imail-imap-url.scm[1.11], imail/Attic/test-imap.scm[1.2]:
Removing files no longer in use.

2000-05-31 Chris Hanson <[email protected]>

* imail/install.sh[1.3]:
Copy entire contents of directory to installation point. This now
matters so that copy in my directory will act as a branch for
development.

* imail/imail-top.scm[1.115]:
Fix typo.

2000-05-30 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.114]:
When showing progress meter, don't show percentage when amount read is
either zero or the total amount. This causes the display to flicker
and provides no useful information.

* imail/imail-imap.scm[1.95]:
Use STRING->HEADER-FIELDS.

* imail/imail-util.scm[1.27]:
Fix bug: STRING->LINES must not return an empty list.

* imail/imail-top.scm[1.113], imail/load.scm[1.12]:
Change M-x imail-input, M-x imail, and M-x imail-get-new-mail to more
closely mimic their RMAIL counterparts.

* imail/Attic/mime-codec.scm[1.3]:
Fix typo in DECODE-QP-HEX-OCTET.

* imail/todo.txt[1.53]:
Need command to move to first unseen message in folder.

* imail/imap-response.scm[1.31]:
Rewrite READ-LITERAL with two aims: (1) to make the newline
translation more efficient, and (2) to generalize it so that MIME
decoding can be directly hooked in.

* runtime/strout.scm[14.14]:
GET-OUTPUT-FROM-ACCUMULATOR should return the internal accumulator
string, rather than copying the string to a new one. Since the
internal accumulator is discarded, this is not a problem, and offers
significant efficiency gains.

2000-05-29 Chris Hanson <[email protected]>

* imail/imap-response.scm[1.30]:
Fix typo.

* imail/imap-response.scm[1.29]:
Pull transcript handling from READ-LITERAL to new
READ-SUBSTRING!-INTERNAL.

2000-05-28 Chris Hanson <[email protected]>

* imail/imap-response.scm[1.28]:
Tweak conditions under which literal progress hook is called.

* imail/imap-response.scm[1.27]:
Modularize line-ending translator.

* imail/imap-response.scm[1.26], imail/imap-response.txt[1.5]:
Disambiguate the "section" form of the BODY response from the
"bodystructure" form.

* imail/imail-imap.scm[1.94]:
Don't remove IMAP connections from the memoized list when they are
closed. Each folder retains a pointer to its connection after closing
it, and may reopen the connection later. When this happens, it
defeats the purpose of the memoization.

2000-05-27 Chris Hanson <[email protected]>

* imail/imap-response.txt[1.4]:
Fix minor bug in description of FETCH BODY responses.

* imail/Attic/mime-codec.scm[1.2]:
Implement BASE64 decoder.

* imail/imail-util.scm[1.26]:
Implement SKIP-LWSP-BACKWARDS.

2000-05-26 Chris Hanson <[email protected]>

* imail/install.sh[1.2]:
Only install required files.

* imail/imail-top.scm[1.112]:
Set truncate-lines to #t in buffer that pops up to show messages to be
expunged.

* imail/Attic/mime-codec.scm[1.1]:
Initial registration.

* imail/imail-imap.scm[1.93]:
Add ability to obtain envelope and bodystructure information from the
server.

2000-05-25 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.92]:
Reorganize login code so that login errors are properly signalled.

* imail/imail-top.scm[1.111], imail/todo.txt[1.52]:
If M-x imail finds existing buffer visiting the folder, it just
selects it and runs M-x imail-get-new-mail.

* imail/imail-top.scm[1.110], imail/todo.txt[1.51]:
Generalize imail-expunge-confirmation to make the type of prompt and
the showing of message independently selectable.

* imail/imail-imap.scm[1.91], imail/imail-top.scm[1.109]:
Don't store the user's pass phrase if the login fails.

* imail/imail-top.scm[1.108], imail/load.scm[1.11],
imail/todo.txt[1.50]:
Implement mechanism to poll the IMAP server in the background at a
specified interval.

* imail/imail-imap.scm[1.90], imail/imail-imap.scm[1.89]:
Fix bug: must read message UIDs _before_ signalling folder event, as
the event handler will usually access the folder, causing extra
unnecessary traffic.

* edwin/editor.scm[1.248]:
Run inferior-thread output processors with interrupts enabled.

2000-05-24 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.107]:
Reply buffer must refer to the message buffer, not the current buffer.

* imail/imail-top.scm[1.106]:
Fix typo that caused MOVE-RELATIVE to ignore its operation when moving
backwards.

* imail/load.scm[1.10]:
Export EDWIN-VARIABLE$IMAIL-PASS-PHRASE-RETENTION-TIME.

* imail/todo.txt[1.49]:
Minor changes.

* imail/imail-top.scm[1.105]:
Add mechanism to erase stored passwords after the specified retention
time that was in effect when they were stored. This uses timer
interrupts to guarantee that it happens even if the user walks away
from the machine.

2000-05-23 Chris Hanson <[email protected]>

* runtime/datime.scm[14.30]:
Use pivot of 1970, since that is the date that will usually screw the
unix libc functions.

* runtime/datime.scm[14.29]:
Do pivoting when deciding what a two-digit year means. I can't
believe that some programs still generate these strings!

* imail/imail-imap.scm[1.88]:
Fix bug: time stamp for APPEND might be #F.

* imail/Attic/rfc822.scm[1.9]:
Workaround another problem with broken mailers mangling received
headers.

* imail/imail-top.scm[1.104], imail/todo.txt[1.48]:
Fix bug: retention time being interpreted in seconds rather than
minutes. Implement M-x imail-copy-folder.

* imail/imail-top.scm[1.103], imail/todo.txt[1.47]:
Add mechanism to control the retention time of IMAIL passwords.

* imail/update-changelog.sh[1.2]:
Can't use backquote in this kind of script.

* imail/imail-core.scm[1.91], imail/imail-file.scm[1.40],
imail/imail-imap.scm[1.87], imail/imail-rmail.scm[1.37],
imail/imail-top.scm[1.102], imail/imail-umail.scm[1.30],
imail/todo.txt[1.46]:
Change definition of SAVE-FOLDER so that it does the save only if
there are changes to be saved, and returns true only if it does the
save. This prevents gratuitous saves of file folders.

* edwin/bufmnu.scm[1.129]:
Make buffer-menu code smarter about keeping its columns aligned. The
menu is very hard to parse with misaligned columns.

* imail/imail-top.scm[1.101]:
Add feedback to various commands that copy messages or create/delete
folders, so the user can see what is happening.

* imail/imail-core.scm[1.90]:
Fix bug in MESSAGE-LENGTH.

* imail/imail-core.scm[1.89], imail/imail-file.scm[1.39],
imail/imail-top.scm[1.100]:
Implement WITH-OPEN-CONNECTION for use by M-x imail-copy-messages.

* imail/imail-imap.scm[1.86]:
Fix thinko in previous change. Use LOGOUT command for clean
disconnections. Improve IMAP trace output to get all responses and to
hide the user's password.

* imail/imail-imap.scm[1.85], imail/todo.txt[1.45]:
Implement explicit condition type for IMAP server errors, and use that
to detect the TRYCREATE response code whereever it occurs.

* imail/imap-response.scm[1.25]:
Add support for UIDPLUS response codes.

* imail/imail-imap.scm[1.84], imail/imail-imap.scm[1.83]:
Restructure IMAP trace mechanism to output the trace directly to a file.

* imail/todo.txt[1.44], imail/todo.txt[1.43]:
Note problems with copying multiple messages to IMAP server.

* imail/imail-summary.scm[1.16], imail/imail-top.scm[1.99]:
Flesh out documentation strings a bit.

* imail/imail-top.scm[1.98]:
Don't bind imail-delete-folder to a key. It should be hard to do this.

* imail/install.sh[1.1], imail/update-changelog.sh[1.1]:
Initial registration.

* imail/imail-top.scm[1.97]:
Change the modeline to show the connection status even when the
folder is empty.

* imail/imail-imap.scm[1.82]:
Send STATUS folder event when IMAP folder opened. Guarantee that
connection's folder is reset if the user aborts the SELECT.

* imail/imail-imap.scm[1.81]:
Fix bug: don't leave connection half-open if user aborts during login.

* imail/imail-top.scm[1.96]:
Fix typo.

* imail/imail-top.scm[1.95], imail/imail-top.scm[1.94],
imail/load.scm[1.9], imail/todo.txt[1.42]:
Add configurable confirmation for performing EXPUNGE.

* imail/imail-summary.scm[1.15], imail/imail-util.scm[1.25]:
Implement procedure to count number of digits in an exact nonnegative integer.

* imail/imail-top.scm[1.93], imail/todo.txt[1.41]:
Implement M-x imail-resend.

* imail/imail-core.scm[1.88], imail/imail-file.scm[1.38],
imail/imail-imap.scm[1.80], imail/imail-top.scm[1.92],
imail/todo.txt[1.40]:
Add "online" indicator to the modeline, and implement command to
disconnect from server.

* imail/imail-top.scm[1.91]:
Add "N unseen" indicator to the modeline.

* imail/todo.txt[1.39]:
Fixed problem with login messages during completion by changing Edwin
to suppress all messages during completion.

* edwin/curren.scm[1.126]:
Syntax tweak.

* edwin/curren.scm[1.125], edwin/prompt.scm[1.185]:
Suppress messages and command prompts while doing completion
operations in the minibuffer.

* imail/imail-imap.scm[1.79]:
Fix bug: if there were two memoized connections to the same server,
GET-IMAP-CONNECTION was returning the first one, even if it was
closed. It should look for one that is still open and use it, using
the closed one only if there's no open one.

* imail/imail-top.scm[1.90]:
Make another stab at getting URL prompts right.

2000-05-22 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.89]:
Fix bug: don't mistakenly say that a folder is unchanged by reading
the modification count at the wrong time.

* imail/imail-imap.scm[1.78]:
Fix bug: don't signal an error when reading BYE message.

* imail/imail-top.scm[1.88]:
Tweak URL prompting again. This is almost what I want now.

* imail/imail-core.scm[1.87], imail/imail-imap.scm[1.77],
imail/imail-top.scm[1.87]:
Change definition of URL-PASS-PHRASE-KEY to specify that it is also
part of the prompt to the user.

* imail/imail-file.scm[1.37]:
Don't implement URL-PASS-PHRASE-KEY for file URLs, because it should
never be called on one of these.

* imail/imail-imap.scm[1.76]:
Fix thinko; eliminate IMAP-CONNECTION-OPEN?.

* imail/imail-core.scm[1.86], imail/imail-file.scm[1.36],
imail/imail-imap.scm[1.75], imail/imail-top.scm[1.86],
imail/todo.txt[1.38]:
Move pass-phrase memoization into the front end. Now connections to
the same account on the same server can share a pass phrase.

* imail/imail-core.scm[1.85], imail/imail-file.scm[1.35],
imail/imail-imap.scm[1.74]:
Always run SAVE-FOLDER as part of CLOSE-FOLDER.

* imail/imail-top.scm[1.85], imail/todo.txt[1.36]:
Implement workaround to keep the IMAP connection open when writing
multiple messages.

* imail/imail-core.scm[1.84]:
Implement WITH-OPEN-FOLDER, which guarantees that the folder is opened
and closed as necessary.

* imail/imail-imap.scm[1.73]:
If connection is established but folder has been closed, reselect the
folder.

* imail/imail-imap.scm[1.72]:
Reexamine IMAIL operations and add checks to guarantee that the
connection is always opened as needed.

* imail/imail-imap.scm[1.71], imail/todo.txt[1.37]:
Add code to detect when the connection has been dropped. This test is
performed by GUARANTEE-IMAP-CONNECTION-OPEN, and thus will be done at
the beginning of every IMAIL operation. The code will transparently
close the connection and reopen it. If a problem occurs during the
processing of the operation, an error will be signalled, as one would
expect.

* imail/todo.txt[1.35]:
Notes regarding bugs having to do with completion prompting.

* imail/imap-syntax.scm[1.11]:
Fix bug: transmission of literal not counting contents correctly.

* imail/imap-response.scm[1.24]:
Fix bug: server continuation lines not being parsed correctly.

* imail/imail-imap.scm[1.70]:
Fix bug in handling of flags to APPEND command.

* imail/imail-core.scm[1.83]:
Ignore any received headers that don't parse correctly.

* imail/Attic/rfc822.scm[1.8]:
Fix several bugs in the "received:" header parsing code.

* imail/imail-top.scm[1.84], imail/load.scm[1.8]:
Write M-x imail-copy-messages.

* imail/imail-rmail.scm[1.36]:
Fix typo.

* imail/imail-imap.scm[1.69], imail/imail.pkg[1.40],
imail/todo.txt[1.34]:
In APPEND-MESSAGE, create mailbox if append/copy causes error
containing TRYCREATE.

* imail/imail-top.scm[1.83], imail/load.scm[1.7]:
Implement IMAIL-COPY-FOLDER, a tool to copy folders to and from an
IMAIL server.

* imail/imail-imap.scm[1.68]:
Canonicalize the case of IMAP URLs, where possible without knowing
details of the server.

* imail/imail.pkg[1.39], imail/load.scm[1.6]:
Use explicit mechanism to link variables into the Edwin package, so
that IMAIL can be reloaded.

* imail/imail-top.scm[1.82]:
Generalize MOVE-RELATIVE to accept a raw command argument rather than
a delta, and to do something sensible if there's no prefix argument.

* imail/imail-top.scm[1.81]:
In flag-modification commands, don't advance to next message unless a
prefix argument is given.

* imail/imail-top.scm[1.80]:
IMAIL-GET-DEFAULT-URL must never signal an error.

* imail/imail-imap.scm[1.67]:
Suppress the IMAP port if it is the standard port.

* imail/imail-core.scm[1.82], imail/imail-file.scm[1.34],
imail/imail-file.scm[1.33], imail/imail-imap.scm[1.66],
imail/todo.txt[1.33]:
Eliminate FOLDER-VALID?, replacing it with the more sensible
URL-EXISTS?.

* imail/imail-core.scm[1.81], imail/imail-file.scm[1.32],
imail/imail-imap.scm[1.65], imail/imail-top.scm[1.79]:
Provide inserted default strings to all URL prompts.

* imail/imail-core.scm[1.80], imail/imail-imap.scm[1.64],
imail/imail-rmail.scm[1.35], imail/imail-umail.scm[1.29],
imail/imail-util.scm[1.24]:
Restructure the URL completion code to clean it up a bit. Change the
completer so that it doesn't do completion on URL protocols. Instead,
if there isn't a protocol prefix on the string, it assumes the
protocol of the default URL, and completes the string relative to that
URL.

* imail/imail-core.scm[1.79], imail/imail-file.scm[1.31],
imail/imail-imap.scm[1.63], imail/imail-rmail.scm[1.34],
imail/imail-top.scm[1.78], imail/imail-umail.scm[1.28],
imail/todo.txt[1.32]:
Implement URL completion, and reimplement URL parsing to do sensible
defaulting. This implementation appears to work but has several minor
problems.

2000-05-21 Chris Hanson <[email protected]>

* imail/imail-util.scm[1.23]:
Fix typo and also type error.

* imail/imail.pkg[1.38], imail/imap-response.scm[1.23]:
Export procedures for deconstructing LIST responses.

2000-05-20 Chris Hanson <[email protected]>

* imail/imail-util.scm[1.22]:
Supply missing STRING-GREATEST-COMMON-PREFIX, needed by completion code.

* imail/imail-file.scm[1.30], imail/imail-rmail.scm[1.33]:
Pathname completion filters now accept a pathname rather than a
string.

* imail/imail-core.scm[1.78]:
Change URL completion so that completion stops after completing a
protocol name, rather than continuing to complete the body.

* imail/imail-util.scm[1.21]:
Fix braino in pathname completion. Previous design would have
recursively read every subdirectory of the given directory attempting
to enumerate files to present to the filter. This design descends
exactly one level at a time, as it should.

* imail/imail-imap.scm[1.62], imail/imail-util.scm[1.20]:
Split off broken-pipe detection code. This has little effect now but
will be useful later when I improve the error recovery.

* microcode/Attic/dostop.c[1.13], microcode/ntapi.h[1.12],
microcode/os2top.c[1.20], microcode/uxtop.c[1.24],
microcode/version.h[11.173]:
Change syscall name and error tables to lower case. These strings are
converted into symbols without case modification, and must be in the
correct case for the runtime system.

* imail/todo.txt[1.31]:
Reminder to move pathname-completion code into the runtime system.

* imail/imail-core.scm[1.77], imail/imail-file.scm[1.29],
imail/imail-rmail.scm[1.32], imail/imail-umail.scm[1.27],
imail/imail-util.scm[1.19], imail/imail-util.scm[1.18]:
First draft of URL completion mechanism. IMAP method not yet
implemented.

2000-05-19 Chris Hanson <[email protected]>

* imail/imail.pkg[1.37]:
Export edwin commands, modes, and variables.

* imail/todo.txt[1.30]:
Summary-buffer navigation now fixed.

* imail/imail-top.scm[1.77]:
Define MOVE-RELATIVE-ANY.

* imail/imail-top.scm[1.76]:
Change flag-marking commands to accept a prefix argument to repeat with.

* imail/imail-top.scm[1.75]:
M-x imail-expunge should not use the navigator abstraction.

* imail/imail-summary.scm[1.14]:
Fix bug: SELECT-MESSAGE event can be called with no message.

* imail/todo.txt[1.29]:
Assorted design changes.

* imail/imail-core.scm[1.76], imail/imail-imap.scm[1.61]:
Change SET-MESSAGE-FLAGS! so that a folder event is generated when the
flags are stored, rather than when the the storage request is
initiated. IMAP can sometimes set the flags when no request has been
initiated.

* imail/imail-top.scm[1.74]:
Bind M-x imail-summary-by-flags to C-M-f rather than C-M-l.

* imail/imail-summary.scm[1.13], imail/imail-top.scm[1.73]:
Use new navigator abstraction to allow the summary buffer to share
nearly all of the IMAIL mode commands. Fix various bugs, both in
summary mode and in the navigator abstraction.

* imail/imail-imap.scm[1.60]:
Use UID STORE rather than STORE.

* imail/imail-core.scm[1.75]:
Fix thinko.

* imail/imail-top.scm[1.72]:
Implement navigation abstraction to allow the summary buffer to
properly share commands with the folder buffer.

* imail/imail-top.scm[1.71]:
Use MOVE-RELATIVE for deletion and undeletion commands.

* imail/imail-summary.scm[1.12], imail/imail-top.scm[1.70],
imail/imail-util.scm[1.17]:
Define generic BURST-COMMA-LIST-STRING.

* imail/imail-summary.scm[1.11], imail/imail-top.scm[1.69]:
Share flag-prompting code to summary buffer commands.

* imail/todo.txt[1.28]:
Downgrade one suggestion to a feature.

* imail/todo.txt[1.27]:
Update for changes. Add note about command to copy entire folders.

* imail/imail-summary.scm[1.10]:
More usability improvements.

* imail/imail-summary.scm[1.9]:
Show several markers for common message flags, rather than just D for
deleted. Add space for a generic marker a la Dired.

* edwin/grpops.scm[1.28]:
Add range checking to the group delete and replace operations.

* imail/todo.txt[1.26]:
Various new ideas.

* imail/imail-core.scm[1.74], imail/imail-top.scm[1.68]:
Eliminate "edited" flag.

* imail/todo.txt[1.25]:
Notes regarding presentation of standard flags in the summary buffer.

* imail/todo.txt[1.24]:
Note bug with navigating partial summary buffers. Note that
%APPEND-MESSAGE must create the folder if it doesn't already exist.

* imail/imail-summary.scm[1.8], imail/imail-top.scm[1.67]:
A number of usability improvements.

* imail/imail-imap.scm[1.59]:
Fix bug: SEARCH-FOLDER is supposed to return indices, but the IMAP
method was returning message objects.

* imail/imap-response.scm[1.22]:
Fix bug: IMAP SEARCH response is allowed to be empty; I was signalling
error in that case.

* imail/todo.txt[1.23]:
Note regarding suboptimal password caching.

* imail/imail-core.scm[1.73], imail/imail-imap.scm[1.58],
imail/imail-top.scm[1.66]:
Redesign handling of IMAP connections so that there can be multiple
mailboxes simultaneously open on the same server. Also provide
mechanism for getting connections for server operations such as CREATE
and DELETE. Flush BIND-AUTHENTICATOR; just define a UI element to
generate a password.

* imail/imail-core.scm[1.72]:
Implement MESSAGE->STRING.

* imail/imap-response.scm[1.21]:
Fix bug: READ-PFLAG was only reading flags that started with "\\".

* imail/imail-imap.scm[1.57], imail/imail.pkg[1.36],
imail/imap-response.scm[1.20], imail/imap-syntax.scm[1.10]:
Reimplement low-level IMAP tracing code to be a complete transcript
mechanism.

2000-05-18 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.56], imail/imail-top.scm[1.65],
imail/todo.txt[1.22]:
Implement commands to create and delete folders. Put in special hack
to prepend "inbox." to folder names when using Cyrus.

* imail/imail-summary.scm[1.7]:
Flesh out the help text for IMAIL Summary mode. Tweak the column
headings slightly. Add imail-summary-mode-hook.

* imail/imail-summary.scm[1.6]:
Add header line to summary buffer to indicate each column's meaning.

* imail/imail-summary.scm[1.5], imail/imail-util.scm[1.16]:
Add indication of message's length to summary buffer.

* imail/imail-core.scm[1.71], imail/imail-imap.scm[1.55]:
Implement MESSAGE-LENGTH.

* imail/imail-imap.scm[1.54], imail/imail-top.scm[1.64],
imail/imail.pkg[1.35], imail/imap-response.scm[1.19],
imail/todo.txt[1.21]:
Add progress meter when reading very long message bodies.

* imail/imap-response.scm[1.18]:
Add hook for progress indicator to code that reads literals.

* imail/todo.txt[1.20]:
Change background NOOP idea from bug fix to feature.

* imail/todo.txt[1.19]:
Need commands to create, delete, and rename folders.

* imail/todo.txt[1.18]:
Summary browser now done. Need progress meter for long messages.

* imail/imail-summary.scm[1.4]:
Additional round of debugging and expansion. This version seems to
work pretty well.

* imail/imail-top.scm[1.63]:
Fix thinko.

* imail/imail-top.scm[1.62]:
Change message-deletion commands to take a repeat argument.

* imail/imail-summary.scm[1.3]:
Results of first round of serious debugging. The summary feature now
appears to work almost right. Some additional work remains.

* imail/imail-top.scm[1.61]:
Fix a few bugs from the recent changes.

* imail/imail-summary.scm[1.2]:
Extensive work. First draft of code that uses new folder events to
see what changes are occurring to the folder and reflecting that in
the summary buffer.

* imail/imail-core.scm[1.70], imail/imail-top.scm[1.60]:
Add folder event to signal selection of a message in the front end.
Unlike other folder events, this one doesn't update the folder's
modification count, so split of a procedure FOLDER-EVENT to handle
cases like this.

* imail/imail-core.scm[1.69], imail/imail-file.scm[1.28],
imail/imail-imap.scm[1.53], imail/imail-top.scm[1.59]:
Change the way folder modification events are signalled. Now there
are several different types of events, and each type has specific
parameters associated with it. The intent of this change is to allow
the front end to figure out what is happening in the back end and
reflect that to the user.

Also: eliminate MESSAGE-MODIFICATION-COUNT and eliminate a handful of
modification events that were not visible at the folder abstraction
boundary (events are now part of the abstraction boundary, and should
not reflect irrelevant internal state).

2000-05-17 Chris Hanson <[email protected]>

* imail/Attic/rfc822.scm[1.7], imail/compile.scm[1.7],
imail/ed-ffi.scm[1.9], imail/imail-summary.scm[1.1],
imail/imail.pkg[1.34], imail/print.sh[1.6]:
First cut at implementation of summary buffers.

* imail/imail-core.scm[1.68]:
Implement MESSAGE-TIME.

* imail/imail-top.scm[1.58], imail/imail-top.scm[1.57]:
Define special buffer properties so that SELECTED-FOLDER and
SELECTED-MESSAGE can work properly in buffers other than the folder
buffer.

* imail/imail-core.scm[1.67], imail/imail-top.scm[1.56]:
Add PROPERTIES slot to all core objects, for use exclusively by the
front end.

* imail/imail-imap.scm[1.52]:
Several changes that make IMAIL come up much faster with large
folders. First, we pay attention to the UNSEEN value, and delete
UNSEEN when expunges happen to avoid having an invalid value. Second,
we don't load headers for all the messages in advance; just their
UIDs, which is very fast.

This allows the mail reader to fetch just the information for the
first unseen message, which happens very quickly on a fast network
connection.

* imail/imail-core.scm[1.66]:
Fix typo.

* imail/imail-rmail.scm[1.31], imail/imail-umail.scm[1.26]:
Eliminate compiler warning.

* imail/imail-rmail.scm[1.30]:
Eliminate code to read RMAIL inbox.

* imail/imail-top.scm[1.55], imail/imail-top.scm[1.54]:
Implement M-x imail-get-new-mail.

* imail/imail-core.scm[1.65], imail/imail-file.scm[1.27],
imail/imail-imap.scm[1.51]:
Implement PROBE-FOLDER.

* imail/imail-top.scm[1.53], imail/todo.txt[1.17]:
Set buffer default directory to something sensible.

* imail/imail-file.scm[1.26]:
Generate predicate for file folders.

* imail/imail-top.scm[1.52]:
Change definition of imail-kept-headers so that it specifies the order
of the headers as well.

* imail/imail-top.scm[1.51]:
Set buffer not modified bit.

* imail/imail-core.scm[1.64], imail/imail-top.scm[1.50],
imail/imail-top.scm[1.49]:
Change FIRST-UNSEEN-MESSAGE to return #F if there are no unseen
messages; previously it returned the last message. Reexamine all of
the uses of FIRST-UNSEEN-MESSAGE and refine the logic there.

* imail/todo.txt[1.16]:
Note regarding generation of status messages during I/O.

* imail/imail-imap.scm[1.50]:
Fix bug: expunging of IMAP messages wasn't renumbering the remaining
messages.

* imail/imail-imap.scm[1.49], imail/todo.txt[1.15]:
Change method used to fetch message contents so that it uses UID FETCH
rather than FETCH.

* imail/imail-core.scm[1.63], imail/imail-top.scm[1.48]:
Implement MESSAGE-ATTACHED? and MESSAGE-DETACHED?, to abstract the
details of this query. Refine the method used to obtain the selected
message, by saving the message index when a message is detached, and
using that index to choose a new message.

* imail/imail-core.scm[1.62], imail/imail-file.scm[1.25],
imail/imail-rmail.scm[1.29], imail/imail-umail.scm[1.25]:
Eliminate COPY-MESSAGE, which no longer worked.

* imail/imail-top.scm[1.47]:
Fix bug: SELECTED-MESSAGE must not choose another message at random if
the buffer's message isn't valid.

* imail/imail-imap.scm[1.48]:
Fix two bugs associated with expunging of messages. This now seems to
work right.

2000-05-16 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.47]:
Reimplement growing and shrinking of messages vector.

* imail/todo.txt[1.14]:
Set imail buffer directory to home directory for IMAP folders.

* imail/imail-imap.scm[1.46]:
Fix infinite recursion.

* imail/imail-core.scm[1.61], imail/imail-imap.scm[1.45],
imail/imail-rmail.scm[1.28], imail/imail-top.scm[1.46],
imail/imap-response.scm[1.17]:
Fix compilation errors.

* imail/imail-util.scm[1.15]:
Generalize STRING->LINES and LINES->STRING.

* imail/imail-imap.scm[1.44], imail/imail-util.scm[1.14],
imail/imap-response.scm[1.16], imail/imap-syntax.scm[1.9]:
Do network/scheme line-ending translation automatically when reading
and writing literals. We shouldn't need to worry about binary data in
mail messages.

* edwin/vc.scm[1.69]:
Fix bug: M-x vc-version-other-window must default the version if the
user doesn't specify it.

* runtime/runtime.pkg[14.349], runtime/string.scm[14.35]:
Define SET-STRING-MAXIMUM-LENGTH!.

* imail/imail-core.scm[1.60], imail/imail-imap.scm[1.43],
imail/imail-umail.scm[1.24]:
Implement MESSAGE-INTERNAL-TIME.

* imail/imap-response.scm[1.15], imail/imap-response.txt[1.3]:
Change INTERNALDATE FETCH response to return the time as universal
time.

* imail/imail-imap.scm[1.42], imail/todo.txt[1.13]:
Signal "unimplemented" error if AVAILABLE-FOLDER-NAMES called on IMAP URL.

* imail/imail-imap.scm[1.41], imail/imail.pkg[1.33],
imail/imap-response.scm[1.14], imail/todo.txt[1.12]:
Implement IMAP SEARCH-FOLDER operation.

* imail/imail-imap.scm[1.40], imail/imail.pkg[1.32],
imail/imap-syntax.scm[1.8]:
Implement all of the IMAP server operations except for
AVAILABLE-FOLDER-NAMES.

* imail/imail-imap.scm[1.39], imail/imail-top.scm[1.45]:
Change implementation of IMAP URLs so that they are fully instantiated
at all times. This greatly simplifies comparison and caching.

* imail/imail-imap.scm[1.38], imail/imail.pkg[1.31],
imail/imap-syntax.scm[1.7]:
Rewrite IMAP URL parser to eliminate unused authentication component,
and to clarify the allowed partial forms.

2000-05-15 Chris Hanson <[email protected]>

* imail/imail-core.scm[1.59], imail/imail-imap.scm[1.37],
imail/imail-rmail.scm[1.27], imail/imail-umail.scm[1.23]:
Rename NEW-FOLDER to CREATE-FOLDER, and change definition so that the
new folder object is _not_ returned. This is more in line with
capabilities of IMAP.

* imail/imail-core.scm[1.58], imail/imail-file.scm[1.24],
imail/imail-imap.scm[1.36], imail/todo.txt[1.11]:
Eliminate MOVE-FOLDER in favor of more-restricted RENAME-FOLDER. This
is a closer match to the capabilities of IMAP.

* imail/imail-core.scm[1.57], imail/imail-file.scm[1.23],
imail/imail-imap.scm[1.35], imail/todo.txt[1.10]:
Eliminate COPY-FOLDER.

* imail/imail-core.scm[1.56], imail/imail-imap.scm[1.34],
imail/imail-rmail.scm[1.26], imail/imail-umail.scm[1.22],
imail/todo.txt[1.9]:
Eliminate message properties.

* imail/imail-umail.scm[1.21]:
Add code to extract timestamp from unix from line.

* runtime/datime.scm[14.28], runtime/datime.scm[14.27]:
Add ability to specify the time zone in which a ctime() string is to
be interpreted.

* imail/imail-umail.scm[1.20]:
Use runtime system's built-in support for ISO C ctime() strings.

* imail/Attic/rfc822.scm[1.6], imail/imail.pkg[1.30]:
Add support for parsing "Received" headers. Break out some
lower-level parsing code.

* runtime/datime.scm[14.26]:
Allow arbitrary whitespace in passed-in time strings.

* imail/todo.txt[1.8]:
Changes to clarify IMAP COPY operation. Suggest using UID FETCH.
Mode-line enhancements.

* imail/imail-core.scm[1.55]:
Fix typo in comment.

2000-05-14 Chris Hanson <[email protected]>

* imail/todo.txt[1.7]:
Add note about need to move compressed-file I/O to the runtime system.

* runtime/process.scm[1.26]:
Eliminate usage of FALSE and TRUE.

* runtime/process.scm[1.25]:
Don't store subprocesses in a simple list -- use a GC finalizer so
that their resources are cleaned up if the subprocess objects are
dropped.

2000-05-12 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.44]:
Don't show special mode-line string if selected message is detached.

* imail/imail-core.scm[1.54], imail/imail-file.scm[1.22],
imail/imail-imap.scm[1.33], imail/imail-rmail.scm[1.25],
imail/imail-top.scm[1.43], imail/imail-umail.scm[1.19],
imail/todo.txt[1.6]:
Change APPEND-MESSAGE to accept arguments (MESSAGE URL) rather than
(FOLDER MESSAGE) as currently. There's no need to have the folder
open to append a message to it, and this requirement causes problems
for the IMAP back end.

* imail/imail-imap.scm[1.32], imail/imail-top.scm[1.42]:
Eliminate unused parts of IMAP URL.

* imail/imail-core.scm[1.53], imail/imail-file.scm[1.21],
imail/imail-imap.scm[1.31], imail/imail-top.scm[1.41],
imail/todo.txt[1.5]:
Replace FOLDER-PRESENTATION-NAME with URL-PRESENTATION-NAME.

2000-05-11 Chris Hanson <[email protected]>

* imail/todo.txt[1.4]:
Reorganize into major sections. Add several more items.

* imail/todo.txt[1.3]:
Reorder items into rough prioritization.

* imail/todo.txt[1.2]:
Add more suggestions.

* imail/imail-top.scm[1.40], imail/print.sh[1.5], imail/todo.txt[1.1]:
Move to-do notes to new file "todo.txt".

2000-05-10 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.30]:
Add code to do NOOP after FETCH if the desired results from the FETCH
aren't received.

* imail/imail-imap.scm[1.29]:
Fix overlong page.

* imail/imail-imap.scm[1.28]:
Add memoization for user's password. Password is stored in obscured
form so that it won't be stumbled over (is there a better way to do
this?). Add code to detect when the connection is broken.

* imail/imail-top.scm[1.39]:
Completely discard folder when imail buffer is killed.

* imail/imail-file.scm[1.20]:
Implement DISCARD-FOLDER-CACHE for file folders.

* imail/imail-imap.scm[1.27]:
Fix off-by-one error.

* imail/imail-core.scm[1.52], imail/imail-imap.scm[1.26],
imail/imail-imap.scm[1.25], imail/imail-rmail.scm[1.24],
imail/imail-umail.scm[1.18]:
Fix bug: URLs weren't being properly memoized when created from
components rather than being translated from a string.

* imail/imail-imap.scm[1.24]:
Add trace facility to allow watching the messages passing between the
client and server.

* imail/imail-core.scm[1.51]:
Don't set message flags unless they have changed.

2000-05-08 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.23]:
In SET-IMAP-FOLDER-LENGTH!, when there are no messages in a folder, it
can be treated using the same strategy as when the folder is
synchronized.

* imail/imail-imap.scm[1.22]:
Extensive rewrite so that folders can be reopened. Added interrupt
locking in many critical locations to guarantee atomicity. Cleaned up
code that sets folder and message attributes based on incoming
responses from the server.

* imail/imail-core.scm[1.50]:
Fix typo.

* edwin/comred.scm[1.120]:
Fix typo in previous change.

* imail/imail.pkg[1.29]:
Fix thinko.

* imail/imail-core.scm[1.49], imail/imail-umail.scm[1.17]:
Eliminate MAKE-ATTACHED-MESSAGE.

* imail/imail-core.scm[1.48], imail/imail-file.scm[1.19]:
Eliminate ATTACH-MESSAGE. Change ATTACH-MESSAGE! to set the index as
well as the folder. Change ATTACH-MESSAGE! and DETACH-MESSAGE! to do
MESSAGE-MODIFIED!.

* imail/imail-core.scm[1.47]:
Fix pagination.

* imail/imail-core.scm[1.46]:
ATTACH-MESSAGE! must clear the message index.

* imail/imail-core.scm[1.45], imail/imail-file.scm[1.18],
imail/imail-rmail.scm[1.23]:
Rename DETACH-MESSAGE to DETACH-MESSAGE!.

* imail/imail-core.scm[1.44]:
Define ATTACH-MESSAGE!.

* imail/imail-top.scm[1.38]:
Use new command-suffix mechanism to delay mode-line updates to end of
command.

* edwin/comred.scm[1.119]:
Change command-suffix mechanism to allow suffixes to take arguments,
which are matched against by MAYBE-ADD-COMMAND-SUFFIX!.

* edwin/comred.scm[1.118], edwin/edwin.pkg[1.256]:
Add ability to specify "command suffixes" -- thunks that are executed
when the current command ends.

* imail/imail-top.scm[1.37]:
Change handling of SELECTED-MESSAGE to ignore message if it is
detached or from the wrong folder, instead selecting default message
from current folder.

* imail/imail-core.scm[1.43], imail/imail-imap.scm[1.21]:
Change handling of FIRST-UNSEEN-MESSAGE; ignore IMAP's UNSEEN response
as it is insufficiently constrained to be useful.

* imail/imail.pkg[1.28], imail/imap-response.scm[1.13]:
Define IMAP:RESPONSE:FETCH-ATTRIBUTE-KEYWORDS.

* imail/imail-imap.scm[1.20]:
Rework handling of FETCH commands: any attributes that we care about
are now transparently stored directly into the appropriate message.
This allows for unsolicited FETCH responses from the server.

* imail/imail-core.scm[1.42]:
Change LINES->HEADER-FIELDS to stop at a blank line, and to use memory
more efficiently.

* imail/imail-util.scm[1.13]:
Implement NETWORK-STRING->LINES.

* imail/imail.pkg[1.27], imail/imap-response.scm[1.12],
imail/imap-response.txt[1.2]:
Fix bug: FETCH response did not contain the message index as it is
supposed to.

* imail/imap-response.txt[1.1]:
Initial registration.

* imail/imail-imap.scm[1.19]:
More intelligent handling of untagged responses, based on closer
reading of specification. Add support for BADCHARSET and UIDNEXT
response codes.

* imail/imail.pkg[1.26], imail/imap-response.scm[1.11]:
Add support for new BADCHARSET and UIDNEXT response codes.

2000-05-05 Chris Hanson <[email protected]>

* imail/imail-core.scm[1.41], imail/imail-imap.scm[1.18],
imail/imail-top.scm[1.36]:
Change the way that URLs are handled by the top level. A partial IMAP
URL may now be specified, and default values are filled in to complete
the URL before it is handed to the IMAP communications layer.

2000-05-04 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.35]:
Fix thinko in IMAIL-MESSAGE-WRAPPER.

* imail/imail-imap.scm[1.17]:
Implement handling of flags, expunging, and deletion/reloading of
cache.

* imail/imail-top.scm[1.34]:
Fix some bugs associated with discarding the imap cache and reloading it.

* imail/imail-top.scm[1.33]:
Define IMAIL-MESSAGE-WRAPPER to allow folder abstraction to present
messages to user.

* imail/imail-core.scm[1.40], imail/imail-top.scm[1.32]:
Don't show "seen" in message flags.

* imail/imail-top.scm[1.31]:
Use implicit flag-setting procedures where applicable. Mark messages
as "seen" when viewed.

* imail/imail-core.scm[1.39], imail/imail-file.scm[1.17],
imail/imail-imap.scm[1.16], imail/imail-top.scm[1.30]:
Implement FOLDER-PRESENTATION-NAME.

* imail/imail-imap.scm[1.15]:
Fix a bunch of bugs. This copy of the code seems to limp along OK.

* imail/imail-top.scm[1.29]:
Implement imail-kept-headers, as an alternative to imail-ignored-headers.

2000-05-03 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.14], imail/imail-imap.scm[1.13]:
Reimplement <IMAP-MESSAGE> usage to extend <MESSAGE>, and to cache the
message headers and body on demand.

* imail/imail-core.scm[1.38], imail/imail-file.scm[1.16]:
Split out code to parse message headers for flags and properties.
Eliminate MESSAGE->STRING.

* imail/imail-core.scm[1.37], imail/imail-file.scm[1.15],
imail/imail-imap.scm[1.12], imail/imail-rmail.scm[1.22],
imail/imail-top.scm[1.28], imail/imail-umail.scm[1.16]:
Change modification-tracking mechanism to use counter instead of
boolean flag. This is necessary if more than one process is
simultaneously tracking modifications.

Sketch new synchronization interface. New interface consists of three
procedures: FOLDER-SYNC-STATUS determines the synchronization
relationship of the folder cache with the persistent folder;
SAVE-FOLDER saves any cached changes to the persistent folder;
DISCARD-FOLDER-CACHE discards all cached information.

* compiler/fgopt/order.scm[4.17]:
Fix code that was assuming that MAP accepted argument lists of
different lengths.

2000-05-02 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.27]:
Jot down some notes.

* imail/imail-core.scm[1.36], imail/imail-file.scm[1.14],
imail/imail-imap.scm[1.11], imail/imail-rmail.scm[1.21],
imail/imail-umail.scm[1.15]:
Eliminate troublesome WRITE-FOLDER operation. Change DELETE-FOLDER
and MOVE-FOLDER to close the old folders.

* imail/imail-file.scm[1.13], imail/imail-rmail.scm[1.20],
imail/imail-umail.scm[1.14]:
Implement CLOSE-FOLDER method for file folders, by discarding the
messages in the folder. The messages are automatically reloaded when
needed.

* imail/imail-core.scm[1.35], imail/imail-file.scm[1.12],
imail/imail-imap.scm[1.10]:
Change FOLDER-URL to be a slot in <FOLDER>.

* imail/imail-top.scm[1.26]:
Change interface to authenticator. Add buffer-kill hook to allow
folder to clean up.

* imail/imail-core.scm[1.34], imail/imail-file.scm[1.11]:
Reorganize code, fix minor bugs.

* imail/imail-imap.scm[1.9]:
Write code to reopen connections [still need to hook this in].

* imail/Attic/rfc822.scm[1.5], imail/imail-umail.scm[1.13],
imail/imail.pkg[1.25]:
Change names of RFC-822 procedures, and move header-field name
predicate to "rfc822.scm".

* imail/imail-util.scm[1.12]:
Implement REMOVE-DUPLICATES!.

* runtime/runtime.pkg[14.348]:
Implement ADD-MEMBER-PROCEDURE.

* runtime/list.scm[14.24]:
[What started out as a simple addition became a moderately large
edit.] Implemented ADD-MEMBER-PROCEDURE. Fixed bug in mapping
procedures: they were allowing combinations of lists of different
lengths, which is forbidden by the specification. Deleted old
commented-out code, which can be recoved from CVS if required in the
future. Reorganized several procedures to make them more concise.

2000-05-01 Chris Hanson <[email protected]>

* runtime/version.scm[14.186]:
Release 7.5.8.

* microcode/version.h[11.172]:
Update to reflect important bug fix for Win32 systems.

* edwin/edwin.pkg[1.255]:
Undo change from revision 1.253.

* edwin/win32.scm[1.13]:
Undo previous change.

* microcode/ntscreen.c[1.45]:
Fix uninitialized variable bug that, strangely, only caused occasional
problems.

2000-04-30 Chris Hanson <[email protected]>

* 6001/edextra.scm[1.31], edwin/abbrev.scm[1.4],
edwin/autold.scm[1.56], edwin/debug.scm[1.50],
edwin/dired.scm[1.182], edwin/dosfile.scm[1.37],
edwin/edwin.pkg[1.254], edwin/input.scm[1.101],
edwin/print.scm[1.19], edwin/unix.scm[1.108], edwin/webster.scm[1.4]:
Create new procedure MESSAGE-WRAPPER to capture standard pattern of
"<message>..." followed by "<message>...done". This eliminates
error-prone uses of APPEND-MESSAGE.

* edwin/edwin.pkg[1.253], edwin/win32.scm[1.12]:
Disable automatic repainting when setting size or position.

2000-04-29 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.8]:
Repaginate.

2000-04-28 Chris Hanson <[email protected]>

* imail/print.sh[1.4]:
Update to reflect changes to file structure.

* imail/imail.pkg[1.24]:
Change load order of files to put all the file-based formats together.

* imail/imail-imap.scm[1.7]:
First version that sort of limps along. Will read messages from IMAP
mailbox and display them.

* imail/imail-util.scm[1.11]:
Implement TRANSLATE-STRING-LINE-ENDINGS.

* imail/imail-core.scm[1.33], imail/imail-top.scm[1.25],
imail/imap-response.scm[1.10]:
Fix various bugs found during debugging of IMAP folders.

* imail/imail.pkg[1.23], imail/imap-response.scm[1.9]:
Regularize format of FETCH response. Add ability to trace output from
server.

* imail/imap-syntax.scm[1.6]:
Fix compiler warning.

* imail/imail-core.scm[1.32]:
Define MAKE-ATTACHED-MESSAGE.

* imail/imail.pkg[1.22], imail/imap-response.scm[1.8]:
Define IMAP:RESPONSE:FETCH-ATTRIBUTE.

* imail/imail-imap.scm[1.6], imail/imail-imap.scm[1.5]:
Intermediate checkpoint -- initial implementation in process.

* imail/imail.pkg[1.21]:
Define IMAP:RESPONSE:STATUS-RESPONSE?.

2000-04-27 Chris Hanson <[email protected]>

* imail/imail-imap.scm[1.4]:
Intermediate checkpoint -- initial implementation in process.

* imail/imail.pkg[1.20], imail/imap-response.scm[1.7]:
Eliminate a bunch of compiler warnings.

* imail/imail-core.scm[1.31], imail/imail-rmail.scm[1.19],
imail/imail-top.scm[1.24], imail/imail-umail.scm[1.12]:
Eliminate ability to edit the contents of a message. IMAP doesn't
permit this, so we won't either. RMAIL is unusual among mail clients
in permitting this.

Additionally, eliminate generic procedure HEADER-FIELDS, and stop
treating the "summary-line" header specially.

* imail/imail-top.scm[1.23]:
Implement IMAIL-PRESENT-USER-ALERT.

2000-04-26 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.22]:
Change protocol of authenticator so that it corresponds to
CALL-WITH-PASS-PHRASE.

2000-04-25 Chris Hanson <[email protected]>

* imail/imap-response.scm[1.6]:
Make corrections to account for the server port not doing line
translation. This is required so that literals will work right.

* imail/imap-response.scm[1.5]:
Delete MAILBOX command which was incorrectly included in IMAP4rev1
specification. Implement procedures to abstractly access server
responses.

* imail/imail.pkg[1.19], imail/imap-syntax.scm[1.5]:
Add code to write strings to the IMAP server.

2000-04-23 Chris Hanson <[email protected]>

* imail/imail-core.scm[1.30], imail/imail-top.scm[1.21]:
Implement URL-USER-ID.

* imail/imap-response.scm[1.4], imail/imap-response.scm[1.3]:
Tweak response representation slightly to clean it up.

* imail/Attic/parser.scm[1.3], imail/imail.pkg[1.18],
imail/imap-syntax.scm[1.4]:
Implement PREDICATED-PARSER.

2000-04-22 Chris Hanson <[email protected]>

* imail/Attic/test-imap.scm[1.1]:
Initial registration.

* imail/imail.pkg[1.17], imail/imap-response.scm[1.2]:
Many changes due to debugging.

* imail/imap-syntax.scm[1.3]:
Change code that handles sections to implement a parser rather than a
matcher. Change usages of DECODING-PARSER to match new definition.

* imail/imail-imap.scm[1.3]:
Use PARSE-SUBSTRING.

* imail/Attic/parser.scm[1.2]:
Modify DECODING-PARSER to accept a parser to parse the decoded text,
rather that a matcher and a keyword. Implement ENCAPSULATING-PARSER,
and abstraction mechanism for this language. Implement PARSE-STRING
and PARSE-SUBSTRING to handle top-level parsing.

* imail/compile.scm[1.6], imail/ed-ffi.scm[1.8],
imail/fake-env.scm[1.3], imail/fake-env.scm[1.2],
imail/imail.pkg[1.16], imail/imap-response.scm[1.1],
imail/imap-syntax.scm[1.2]:
First attempt at a parser for IMAP server responses.

2000-04-20 Chris Hanson <[email protected]>

* edwin/make.scm[3.101]:
Update to reflect a variety of bug fixes since last release.

* runtime/version.scm[14.185]:
Release 7.5.7.

* microcode/version.h[11.171]:
Update version to reflect fix to Windows keyboard handling.

* microcode/ntscreen.c[1.44]:
Change test in `process_keydown' so that it specifies what modifiers
we _are_ interested in, rather than those that we aren't.

* microcode/ntscreen.c[1.43]:
When deciding whether a keystroke is interesting enough to translate
manually, ignore NUMLOCK or SCROLLLOCK. Previously if either of these
were depressed, it would force manual translation. Also: raise trace
level for some common but uninteresting message types.

2000-04-19 Chris Hanson <[email protected]>

* microcode/ntscreen.c[1.42], microcode/ntscreen.h[1.20],
microcode/prntio.c[1.12]:
Modify Win32 tracing mechanism so that it is always compiled in and
can be dynamically enabled or disabled.

* runtime/ntprm.scm[1.34]:
Change definition of DOS/FS-DRIVE-TYPE so that it can recognize Samba
even when it advertises itself as NTFS.

2000-04-18 Chris Hanson <[email protected]>

* imail/Attic/rexp.scm[1.14], runtime/rexp.scm[1.14]:
Fix typo.

* imail/imail-imap.scm[1.2], imail/imail.pkg[1.15]:
Fix compilation problems.

* imail/fake-env.scm[1.1]:
Initial registration.

* imail/compile.scm[1.5], imail/ed-ffi.scm[1.7],
imail/imail-imap.scm[1.1], imail/imail.pkg[1.14]:
Add new files, rearrange package structure.

* imail/imap-syntax.scm[1.1]:
Move IMAP syntax into separate file.

* imail/Attic/parser.scm[1.1]:
Move parser support into separate file.

* imail/imail-core.scm[1.29], imail/imail-file.scm[1.10]:
Eliminate INSERT-MESSAGE, which isn't supported by IMAP and isn't
needed.

* imail/Attic/imail-imap-url.scm[1.10]:
Simplify -- we aren't going to support the full IMAP URL syntax. But
leave the parsers here -- they may come in handy later.

* imail/Attic/imail-imap-url.scm[1.9],
imail/Attic/imail-imap-url.scm[1.8]:
Handle decoding properly -- can't decode entire URL string, only those
parts that have already matched as encoded.

2000-04-15 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.252], edwin/win32.scm[1.11]:
Use MB_OK argument to MessageBeep -- using -1 doesn't do reasonable
thing under Windows 9x.

2000-04-14 Chris Hanson <[email protected]>

* imail/print.sh[1.3]:
Add new files.

* imail/compile.scm[1.4], imail/ed-ffi.scm[1.6], imail/imail.pkg[1.13]:
Rename "imail-imap" to "imail-imap-url".

* imail/Attic/imail-imap-url.scm[1.7]:
First pass implementing parser for IMAP URLs.

* imail/Attic/rexp.scm[1.13], imail/Attic/rfc822.scm[1.4],
imail/imail-core.scm[1.28], imail/imail-rmail.scm[1.18],
imail/imail-top.scm[1.20], imail/imail-util.scm[1.10],
imail/url.scm[1.7], runtime/Attic/url.scm[1.7],
runtime/rexp.scm[1.13]:
Use new runtime procedures SUBSTRING-MOVE! and
DECORATED-STRING-APPEND.

* runtime/runtime.pkg[14.347], runtime/string.scm[14.34],
runtime/string.scm[14.33]:
Implement DECORATED-STRING-APPEND.

2000-04-13 Chris Hanson <[email protected]>

* runtime/string.scm[14.32], runtime/string.scm[14.31],
runtime/string.scm[14.30]:
Use fixnum arithmetic everywhere. Various other small changes.

* imail/Attic/rexp.scm[1.12], runtime/rexp.scm[1.12]:
Fix some bugs caused by STRING? being true of CHAR-SET?.

* imail/Attic/rexp.scm[1.11], imail/ed-ffi.scm[1.5],
imail/imail.pkg[1.12], runtime/rexp.scm[1.11]:
Move this code into the runtime system's package heirarchy.

* imail/imail-util.scm[1.9]:
STRING-MOVE! now in runtime system.

* runtime/runtime.pkg[14.346], runtime/string.scm[14.29]:
Implement STRING-MOVE! and SUBSTRING-MOVE!.

* imail/Attic/rexp.scm[1.10], runtime/rexp.scm[1.10]:
Fix infinite recursion.

* imail/Attic/imail-imap-url.scm[1.6], imail/Attic/rexp.scm[1.9],
imail/ed-ffi.scm[1.4], imail/imail.pkg[1.11], runtime/rexp.scm[1.9]:
Fix compiler warnings.

* imail/Attic/imail-imap-url.scm[1.5], imail/Attic/rexp.scm[1.8],
imail/url.scm[1.6], runtime/Attic/url.scm[1.6],
runtime/rexp.scm[1.8]:
Change all one-arg rexp combinators to accept any number of args and
treat it as an implicit sequence. Change sequence combinator to
collapse nested sequences.

* imail/Attic/imail-imap-url.scm[1.4],
imail/Attic/imail-imap-url.scm[1.3], imail/Attic/rexp.scm[1.7],
imail/imail.pkg[1.10], imail/url.scm[1.5],
runtime/Attic/url.scm[1.5], runtime/rexp.scm[1.7]:
Change rexp compiler to be case sensitive, and add REXP-CASE-FOLD to
delimit regions that should be case insensitive.

* imail/Attic/rexp.scm[1.6], imail/Attic/rexp.scm[1.5],
runtime/rexp.scm[1.6], runtime/rexp.scm[1.5]:
Change automatic grouping so that it happens in the constructors
rather than in the compiler.

* imail/Attic/rexp.scm[1.4], runtime/rexp.scm[1.4]:
When ALTERNATIVES appears within SEQUENCE, it must be GROUPed.

* imail/imail.pkg[1.9], imail/url.scm[1.4], runtime/Attic/url.scm[1.4]:
Change to use new rexp abstraction.

* imail/Attic/rexp.scm[1.3], runtime/rexp.scm[1.3]:
Change REXP-GROUP to take just one argument.

* imail/Attic/rexp.scm[1.2], imail/imail.pkg[1.8],
runtime/rexp.scm[1.2]:
Add REXP-SEQUENCE.

* imail/Attic/rexp.scm[1.1], imail/compile.scm[1.3],
imail/ed-ffi.scm[1.3], imail/imail.pkg[1.7], runtime/rexp.scm[1.1]:
Add file "rexp.scm" implementing list-based regular expressions.

* win32/dib.scm[1.4], win32/win32.pkg[1.12]:
Eliminate reference to now-obsolete protection lists.

* runtime/regexp.scm[1.9]:
Fix two bugs in CHAR-SET->REGEXP.

* runtime/crypto.scm[14.10]:
Don't do mhash initialization if the primitives are unimplemented.

2000-04-12 Chris Hanson <[email protected]>

* imail/Attic/imail-imap-url.scm[1.2],
imail/Attic/imail-imap-url.scm[1.1], imail/compile.scm[1.2],
imail/imail.pkg[1.6]:
Initial unfinished pass to generate IMAP URL parser.

* imail/imail.pkg[1.5], imail/url.scm[1.3], runtime/Attic/url.scm[1.3]:
Define URL:REGEXP:HOSTPORT and subsidiaries.

* imail/imail.pkg[1.4], imail/url.scm[1.2], runtime/Attic/url.scm[1.2]:
Reconcile the character sets and regexps used here with the
descriptions in RFC 1738. Also export them since the IMAP URL code
needs access to some of them.

* runtime/regexp.scm[1.8], runtime/runtime.pkg[14.345]:
Implement CHAR-SET->REGEXP.

* imail/imail.pkg[1.3], imail/url.scm[1.1], runtime/Attic/url.scm[1.1]:
Implement procedures to encode and decode URLs.

* runtime/chrset.scm[14.10]:
Allow CHAR-SET-UNION and CHAR-SET-INTERSECTION to take any number of
arguments. Eliminate use of CHAR->ASCII and ASCII->CHAR.

2000-04-11 Chris Hanson <[email protected]>

* runtime/chrset.scm[14.9]:
Allow CHAR-SET-UNION and CHAR-SET-INTERSECTION to take any number of
arguments. Eliminate use of CHAR->ASCII and ASCII->CHAR.

* runtime/crypto.scm[14.9], runtime/crypto.scm[14.8]:
Change keygen-type generation so that salt is supplied in the call to
MHASH-KEYGEN, if needed. This is desirable because the salt is
usually unique for each passphrase.

* runtime/crypto.scm[14.7], runtime/crypto.scm[14.6],
runtime/runtime.pkg[14.344]:
Change MHASH-KEYGEN to accept all of the key-generation parameters as
a compound structure, and implement MAKE-MHASH-KEYGEN-TYPE to build
that structure.

* runtime/crypto.scm[14.5]:
Improve error message for incorrect salt size.

* runtime/ed-ffi.scm[1.23]:
Add "crypto.scm" to the list of known files.

* runtime/crypto.scm[14.4]:
Fix interface to MHASH-KEYGEN so that it is usable.

* runtime/random.scm[14.23], runtime/runtime.pkg[14.343]:
Define RANDOM-BYTE-VECTOR to generate random bytes. This is useful
for cryptographic applications that don't require an RNG with
cryptographic properties, e.g. to generate an init vector or to salt a
password.

2000-04-10 Chris Hanson <[email protected]>

* runtime/gcfinal.scm[14.2]:
REMOVE-FROM-GC-FINALIZER! must return the value of the finalization
procedure for the object being finalized.

* runtime/crypto.scm[14.3], runtime/crypto.scm[14.2],
runtime/make.scm[14.65], runtime/runtime.pkg[14.342]:
Repackage new crypto stuff. Use new GC finalizers to add GC
protection to the context indices generated by the hash code.

* runtime/ed-ffi.scm[1.22], runtime/gcfinal.scm[14.1],
runtime/gdbm.scm[1.3], runtime/io.scm[14.61],
runtime/make.scm[14.64], runtime/os2graph.scm[1.17],
runtime/runtime.pkg[14.341], runtime/x11graph.scm[1.50]:
Add new implementation of GC finalizers, a cleaner replacement for the
old protection list abstraction. Unlike protection lists, GC
finalizers keep themselves clean, eliminating the need for the
programmer to interact with GC daemons and events.

* edwin/filcom.scm[1.211]:
Update to match change to MD5 support in runtime system.

* runtime/blowfish.scm[1.19], runtime/krypt.scm[1.11],
runtime/runtime.pkg[14.340]:
Implement support for the mhash library. Generalize MD5 support to
use mhash if available, otherwise the md5-karn library.

* microcode/prmhash.c[11.1], runtime/crypto.scm[14.1]:
Initial revision.

* edwin/bufwin.scm[1.309], edwin/bufwiu.scm[1.34]:
Change FALSE to #F and TRUE to #T.

* edwin/bufwin.scm[1.308]:
Add code to detect case where the first visible line in a window is a
partially-visible continued line and is subsequently deleted.
Previously this caused the redisplay to go into an uninterruptible
infinite loop.

* edwin/bufwiu.scm[1.33]:
Add code to detect case where the first visible line in a window is a
partially-visible continued line and is subsequently deleted.
Previously this caused the redisplay to go into an uninterruptible
infinite loop.

This is yet another change in the series of revisions 1.25 and 1.30.
Revision 1.30 only partially fixed this bug. This revision introduces
a new fix that should be more robust.

2000-04-07 Chris Hanson <[email protected]>

* edwin/vc.scm[1.68]:
Don't offer to save the VC log buffer.

* imail/imail-top.scm[1.19]:
Fix bugs in IMAIL-READ-FLAG.

* imail/imail-core.scm[1.27], imail/imail-top.scm[1.18]:
Add hook to notice modifications to folders and reflect them in the
mode line.

* runtime/runtime.pkg[14.339]:
Export EVENT-DISTRIBUTOR/RECEIVERS.

* runtime/events.scm[14.5]:
Don't allow event receivers to be added twice.

* imail/imail-top.scm[1.17]:
Repaginate.

* edwin/curren.scm[1.124]:
Implement MAKE-BUFFER-INVISIBLE.

* edwin/vc.scm[1.67], edwin/vc.scm[1.66], edwin/vc.scm[1.65],
edwin/vc.scm[1.64]:
Try harder to restore the window configuration to what it was before
the log buffer was popped up.

* edwin/wincom.scm[1.125]:
POP-UP-BUFFER could return a window that wasn't popped up.

* imail/imail-core.scm[1.26], imail/imail-top.scm[1.16]:
Fix a variety of small bugs.

* imail/imail-rmail.scm[1.17], imail/imail-rmail.scm[1.16],
imail/imail.pkg[1.2]:
Don't duplicate logic that is already available in "rmail.scm"; share
it.

* imail/imail-util.scm[1.8]:
Define EDWIN-VARIABLE-VALUE.

2000-04-06 Chris Hanson <[email protected]>

* imail/imail-rmail.scm[1.15]:
Implement the RMAIL-PRIMARY-INBOX-LIST and RMAIL-SPOOL-DIRECTORY
procedures.

* imail/imail-util.scm[1.7]:
Fix a handful of small bugs.

* imail/imail-core.scm[1.25]:
Make MESSAGE-FOLDER be #F if not defined. Customize written
representation for messages and folders.

* sos/macros.scm[1.10]:
Make sure that variable references in the expansion refer to global
variables. The lack of this protection caused trouble when this code
was used in Edwin, which has a different definition for MAKE-CLASS.

* imail/imail-top.scm[1.15]:
Change "writable" to "writeable".

* imail/imail-rmail.scm[1.14], imail/imail-umail.scm[1.10]:
Eliminate half-baked notion of "importing" and "exporting" files. If
pursued, this results in particular files being marked as "external",
and others as "internal", and it becomes clumsy.

* imail/imail-umail.scm[1.11], imail/imail-util.scm[1.6]:
Fix typo.

* edwin/vc.scm[1.63]:
Fix typo: some instances of BUFFER-VC-MASTER that should have been
changed to CURRENT-VC-MASTER.

* edwin/vc.scm[1.62]:
Change vc-next-action so that it doesn't read in files that aren't
already in buffers.

2000-04-05 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.251]:
Add missing exports for RMAIL summary mode.

2000-04-04 Chris Hanson <[email protected]>

* rcs/Attic/make.scm[1.6], rcs/Attic/rcs.sf[1.9]:
Delete old files.

* runtime/version.scm[14.184]:
Release 7.5.6.

* edwin/abbrev.scm[1.3]:
Fix several bugs in the handling of edit-abbrevs and abbrev-file I/O.

* edwin/things.scm[1.87]:
Fix definition of INDENT-TO; was computing target column incorrectly.

* edwin/simple.scm[1.50]:
Define INSERT.

2000-04-03 Chris Hanson <[email protected]>

* edwin/vc.scm[1.61]:
In vc-dired mode, don't select buffers containing the files being
checked in; just pop them up.

* edwin/wincom.scm[1.124]:
POP-UP-BUFFER: Clarify derivation of CURRENT-WINDOW-OK?.

2000-04-02 Chris Hanson <[email protected]>

* edwin/vc.scm[1.60]:
Fix two bugs in file registration.

2000-04-01 Chris Hanson <[email protected]>

* edwin/dired.scm[1.181]:
Fix typo in previous change.

* edwin/vc.scm[1.59]:
Fix status string.

* edwin/vc.scm[1.58]:
Don't prompt for comment when registering files in vc-dired.

* edwin/vc.scm[1.57]:
Minor cleanups.

* edwin/vc.scm[1.56]:
Another tweak so that commands work correctly in vc-dired buffer: the
selected buffer isn't necessarily the right one to operate on in that
case.

* edwin/dired.scm[1.180]:
DIRED-MARK-FILES! should have used DIRED-PATHNAME rather than
reproducing its functionality.

2000-03-31 Chris Hanson <[email protected]>

* edwin/vc.scm[1.55], edwin/vc.scm[1.54]:
Implement vc-dired mode, with associated bound commands, as in Emacs.

* edwin/dired.scm[1.179], edwin/dired.scm[1.178],
edwin/dired.scm[1.177], edwin/edwin.pkg[1.250]:
Implement DIRED-MARK-FILES!.

* edwin/dired.scm[1.176]:
Change DIRED-THIS-FILE to signal an error if desired.

* edwin/dired.scm[1.175]:
Allow DIRED-THIS-FILE to take buffer in place of mark.

* edwin/dired.scm[1.174]:
Allow dired-next-files to take buffer in place of mark.

* edwin/vc.scm[1.53], edwin/vc.scm[1.52]:
In VC-Dired buffer, don't prompt for comment string unless one is
needed.

* edwin/vc.scm[1.51]:
Implement variables VC-DELETE-LOGBUF-WINDOW and
VC-DEFAULT-INIT-VERSION.

* edwin/vc.scm[1.50]:
Add support for "manual" style CVS using "cvs edit" and "cvs unedit".

* edwin/vc.scm[1.49]:
Add CVS status of LOCALLY-REMOVED.

* rcs/logmer.scm[1.25], rcs/mklogs.scm[1.19]:
Change argument structure of RCS-DIRECTORY-LOG to have a single
optional OPTIONS argument that encapsulates the interesting variations.

* rcs/logmer.scm[1.24]:
Clean up code by using new date representation.

* rcs/compile.scm[1.2]:
Enumerate the files to be compiled, rather than compiling the entire
directory.

* rcs/object.scm[1.5]:
Change date representation to have separate values for date and day.

* rcs/compile.scm[1.1], rcs/load.scm[1.1]:
Make standard compile and load files.

2000-03-30 Chris Hanson <[email protected]>

* rcs/logmer.scm[1.23], rcs/mklogs.scm[1.18]:
Add option to show file revisions. Fix thinko that caused sorting to
be wrong within days.

* rcs/logmer.scm[1.22]:
Adjust ChangeLog formatter to eliminate duplicate filenames in
entries, and to sort the groups by time rather than logentry text.

2000-03-27 Chris Hanson <[email protected]>

* edwin/vc.scm[1.48], edwin/vc.scm[1.47], edwin/vc.scm[1.46],
edwin/vc.scm[1.45], edwin/vc.scm[1.44]:
Implement VC-FOLLOW-SYMLINKS variable.

* edwin/bufmnu.scm[1.128], edwin/dired.scm[1.173],
edwin/filcom.scm[1.210], edwin/rmail.scm[1.70], edwin/snr.scm[1.56],
edwin/tagutl.scm[1.59]:
Change variable FIND-FILE-HOOKS to be a list. The procedures in this
list are called in order, and each must return a buffer, which may be
different form the argument. The resulting buffer is to be used in
place of the argument buffer. This affects the result of
FIND-FILE-NOSELECT, AFTER-FIND-FILE, FIND-FILE-REVERT, and
REVERT-BUFFER.

* runtime/vector.scm[14.15]:
Allow vector-grow to specify the fill value for the new slots.

* edwin/vc.scm[1.43], edwin/vc.scm[1.42]:
Optimize VC-WORKFILE-MODIFIED? to avoid running diff if possible.

* edwin/vc.scm[1.41], edwin/vc.scm[1.40]:
Rework the handling of cache synchronization; new design is much
simpler and less prone to errors. Add messages to the handful of CVS
commands that were missing them. Fix a few minor bugs.

* rcs/logmer.scm[1.21]:
Fix whitespace typo.

* edwin/vc.scm[1.39]:
Another round of changes, this one mostly small cleanups, except: CVS
diff now uses "--brief" if available. "--brief" is detected by
running "diff" with that argument and examining the result code.

2000-03-26 Chris Hanson <[email protected]>

* edwin/vc.scm[1.38]:
Extensive changes to simplify the program's logic. Rearranged pages
into a more sensible order. Modified VC-DIRED presentation format to
match that of Emacs.

* edwin/edwin.pkg[1.249]:
Eliminate now-unused variable VC-AFTER-SAVE.

2000-03-25 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.177]:
Add generic hook for taking action after a buffer's pathname is
changed.

* edwin/fileio.scm[1.152]:
Add generic hook for taking action after a buffer is saved.

* edwin/edwin.pkg[1.248], edwin/modefs.scm[1.158]:
Update for changes to VC.

* runtime/gcnote.scm[14.14]:
Make the GC notification string be a comment.

* runtime/gcnote.scm[14.13]:
Another change for the new newline convention.

* edwin/vc.scm[1.37]:
Stylistic adjustments.

2000-03-24 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.247], edwin/vc.scm[1.36]:
Extensive work to get correct operation of CVS support. Now
substantially merged with "vc.el" from Emacs 20.6.

2000-03-23 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.246], edwin/fileio.scm[1.151], edwin/vc.scm[1.35]:
Implement CVS support for VC. Bring the RCS support of VC more up to
date.

* edwin/rmail.scm[1.69]:
Fix typo introduced in revision 1.67.

* edwin/bufcom.scm[1.107], edwin/buffer.scm[1.176],
edwin/bufmnu.scm[1.127], edwin/debug.scm[1.49],
edwin/debuge.scm[1.54], edwin/dired.scm[1.172], edwin/dos.scm[1.52],
edwin/edwin.pkg[1.245], edwin/evlcom.scm[1.63],
edwin/filcom.scm[1.209], edwin/fileio.scm[1.150],
edwin/info.scm[1.134], edwin/modlin.scm[1.22], edwin/os2.scm[1.49],
edwin/rmail.scm[1.68], edwin/rmailsrt.scm[1.13],
edwin/rmailsum.scm[1.36], edwin/struct.scm[1.93],
edwin/techinfo.scm[1.6], edwin/txtprp.scm[1.20],
edwin/unix.scm[1.107], edwin/vc.scm[1.34]:
Change "writable" to "writeable".

2000-03-22 Chris Hanson <[email protected]>

* runtime/datime.scm[14.25], runtime/runtime.pkg[14.338]:
Distinguish between local and global ctime() strings.

* edwin/rmail.scm[1.67]:
Procedures that handle ISO C ctime() strings have been moved to the
runtime system.

* runtime/datime.scm[14.24], runtime/datime.scm[14.23],
runtime/runtime.pkg[14.337]:
Add procedures to convert between ISO C ctime() strings and other time
formats. Additionally, export procedures that convert strings to
day-of-week, month, and time-zone.

* edwin/hlpcom.scm[1.115]:
Don't generate error if command expansion in help string refers to
non-existent command.

* edwin/dired.scm[1.171]:
Fix typo in mode description.

* microcode/unxutl/Attic/makefile[1.28]:
etags no longer recognizes DEF patterns in C files.

2000-03-21 Chris Hanson <[email protected]>

* runtime/regexp.scm[1.7]:
Fix typo.

* rcs/mklogs.scm[1.17]:
Update to reflect more conversion to CVS.

* rcs/mklogs.scm[1.16]:
Change to use ChangeLog for entire Scheme tree.

* swat/c/Makefile[1.2]:
Eliminate "tkCanvArc.c" and "tkMenu.c".

* pcsample/Attic/pcsdisp.com[1.2]:
File shouldn't have been registered.

* compiler/documentation/cmpaux.txt[1.4],
compiler/documentation/cmpint.txt[1.12],
compiler/documentation/safety.txt[1.4],
compiler/documentation/test-c.c[1.4], microcode/TODO[1.2],
wabbit/wabbit.scratch[1.2]:
Change RCS "Header" to "Id".

* Makefile.std[1.2], compiler/Attic/Makefile[1.11], swat/Makefile[1.5]:
Change "tags" rule to "TAGS".

* COPYING[1.1]:
Initial registration with CVS

* Makefile.std[1.1], TAGS[1.1], compiler/improvements/comcon.scm[1.1],
compiler/improvements/gasn.scm[1.1],
compiler/improvements/rewsub.scm[1.1], microcode/os2utl/bch.ico[1.1],
microcode/os2utl/coffee.ico[1.1], microcode/os2utl/conses.ico[1.1],
microcode/os2utl/edwin.ico[1.1], microcode/os2utl/envir1.ico[1.1],
microcode/os2utl/graphics.ico[1.1], microcode/os2utl/lambda.ico[1.1],
microcode/os2utl/lambda2.ico[1.1], microcode/os2utl/liar1.ico[1.1],
microcode/os2utl/liar2.ico[1.1], microcode/os2utl/liar3.ico[1.1],
microcode/os2utl/mincer.ico[1.1], microcode/os2utl/shield1.ico[1.1],
microcode/os2utl/shield2.ico[1.1], microcode/os2utl/shield3.ico[1.1],
microcode/os2utl/shield4.ico[1.1], swat/scheme/demo-plotter.scm[1.1]:
Initial registration with CVS.

2000-03-20 Chris Hanson <[email protected]>

* rcs/logmer.scm[1.20], rcs/object.scm[1.4]:
Changes to generate ChangeLog-style output, and to support CVS in
addition to RCS.

2000-03-17 Chris Hanson <[email protected]>

* runtime/version.scm[14.183]:
Update to release 7.5.5.

2000-03-16 Chris Hanson <[email protected]>

* sf/make.scm[4.36]:
Fix typo.

* sf/make.scm[4.35], sf/usiexp.scm[4.40]:
Add expansions for FLO:<= and FLO:>=.

* runtime/fixart.scm[1.5], runtime/version.scm[14.182]:
Add flonum operations FLO:<= FLO:>= FLO:MAX FLO:MIN.

* runtime/msort.scm[14.7]:
Change implementation of MERGE-SORT (and therefore SORT) so that it
uses the in-place vector-sorting algorithm for lists. The previous
algorithm created a stack of depth (/ (LENGTH L) 2), which made it
impossible to use for large lists. This algorithm creates a stack of
depth (/ (LOG (LENGTH L)) (LOG 2)).

Additionally, tweaked the vector-sorting algorithm to use indexes in a
slightly more efficient (and clearer) way.

2000-03-15 Chris Hanson <[email protected]>

* edwin/sendmail.scm[1.46]:
Use new release version string from runtime rather than deprecated
string from microcode.

2000-03-10 Chris Hanson <[email protected]>

* edwin/vc.scm[1.33]:
Change VC-DIFF to compare the revisions using no switches (i.e.
ignoring nothing), and to display the differences using the switches
of the user's choice.

* edwin/vc.scm[1.32]:
Fix bug: VC couldn't check in changes involving just whitespace when
diff-switches contained switches that said to ignore whitespace.

2000-03-03 Chris Hanson <[email protected]>

* edwin/iserch.scm[1.23], edwin/sercom.scm[1.65]:
Change incremental search to terminate on RET rather than ESC, for
compatibility with Emacs.

2000-03-02 Chris Hanson <[email protected]>

* edwin/edwin.sf[1.24]:
Another tweak for new newline convention.

* edwin/fill.scm[1.63]:
Implement adaptive fill from Emacs.

* edwin/c-mode.scm[1.59], edwin/midas.scm[1.21],
edwin/pasmod.scm[1.50], edwin/schmod.scm[1.47],
edwin/texcom.scm[1.45], edwin/tparse.scm[1.72],
edwin/verilog.scm[1.8], edwin/vhdl.scm[1.8]:
Define a standard alternative paragraph style in which paragraphs are
broken by blank lines. Change all modes that want this style to call
the standard procedure to define it.

2000-03-01 Chris Hanson <[email protected]>

* sf/xform.scm[4.10]:
Change to new newline convention.

* edwin/editor.scm[1.247]:
Change to compensate for IDENTIFY-WORD printing final newline.

* runtime/savres.scm[14.33], runtime/savres.scm[14.32],
runtime/version.scm[14.181]:
Change to put release version into runtime system rather than
microcode.

2000-02-29 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.175]:
Add ability to set the default value of a variable when the editor
isn't running.

* edwin/c-mode.scm[1.58], edwin/htmlmode.scm[1.3],
edwin/javamode.scm[1.10], edwin/loadef.scm[1.42],
edwin/schmod.scm[1.46], edwin/shell.scm[1.24],
edwin/texcom.scm[1.44]:
Re-do definitions of mode-specific abbrev tables so that their names
are properly registered.

* edwin/texcom.scm[1.43]:
Fix typo.

* edwin/make.scm[3.100]:
Implement abbrev mode; rework interaction between auto-fill,
self-insert, and optimized typein; \\{} and \\<> in help strings;
ability to replace characters in buffer without disturbing marks (for
case conversion).

* edwin/c-mode.scm[1.57], edwin/htmlmode.scm[1.2],
edwin/javamode.scm[1.9], edwin/loadef.scm[1.41],
edwin/midas.scm[1.20], edwin/midas.scm[1.19], edwin/pasmod.scm[1.49],
edwin/pasmod.scm[1.48], edwin/schmod.scm[1.45],
edwin/sendmail.scm[1.45], edwin/shell.scm[1.23],
edwin/texcom.scm[1.42], edwin/tximod.scm[1.23],
edwin/tximod.scm[1.22], edwin/verilog.scm[1.7],
edwin/verilog.scm[1.6], edwin/vhdl.scm[1.7], edwin/vhdl.scm[1.6]:
Add mode-specific abbrev tables and \\{} doc strings to many major modes.

* edwin/outline.scm[1.9]:
Adjust minor-mode toggle logic to match new standard.

* edwin/abbrev.scm[1.2], edwin/basic.scm[1.137],
edwin/comred.scm[1.117]:
Fix thinko.

2000-02-28 Chris Hanson <[email protected]>

* edwin/basic.scm[1.136], edwin/bufwiu.scm[1.32],
edwin/comred.scm[1.116], edwin/decls.scm[1.68],
edwin/ed-ffi.scm[1.49], edwin/edwin.ldr[1.69],
edwin/edwin.pkg[1.244], edwin/filcom.scm[1.208],
edwin/modefs.scm[1.157], edwin/winout.scm[1.14]:
Implement abbrev mode.

* edwin/filcom.scm[1.207]:
Fix thinko.

* edwin/dosfile.scm[1.36], edwin/unix.scm[1.106]:
Define OS/ABBREV-FILE-NAME.

2000-02-27 Chris Hanson <[email protected]>

* edwin/filcom.scm[1.206]:
Add logic for saving abbrev tables (to be supplied).

* edwin/grpops.scm[1.27]:
Fix thinko in previous change.

2000-02-25 Chris Hanson <[email protected]>

* edwin/comman.scm[1.83], edwin/modes.scm[1.32]:
Clarify meaning of optional argument to NAME->foo procedures.

* edwin/tagutl.scm[1.58]:
Fix bug in which error could be signalled by out-of-date tags file.

* edwin/things.scm[1.86]:
Implement INDENT-TO.

* edwin/texcom.scm[1.41]:
Implement COUNT-WORDS-REGION.

* edwin/edwin.pkg[1.243], edwin/grpops.scm[1.26],
edwin/regops.scm[1.88], edwin/simple.scm[1.49],
edwin/texcom.scm[1.40], edwin/txtprp.scm[1.19], edwin/undo.scm[1.59]:
Reimplement case-conversion commands, including new capitalize-region.
New implementation utilities low-level code to replace strings in
buffer without disturbing marks or text properties.

* edwin/basic.scm[1.135], edwin/basic.scm[1.134],
edwin/basic.scm[1.133], edwin/comred.scm[1.115],
edwin/fill.scm[1.62], edwin/lincom.scm[1.124],
edwin/syntax.scm[1.85]:
Integrate auto-fill and abbrev into M-x self-insert, as in Emacs.

2000-02-24 Chris Hanson <[email protected]>

* edwin/hlpcom.scm[1.114], edwin/keymap.scm[1.17],
edwin/keymap.scm[1.16], edwin/keymap.scm[1.15],
edwin/modefs.scm[1.156]:
Add option to DESCRIBE-BINDINGS to ignore "global" comtabs.

* edwin/shell.scm[1.22]:
Show shell mode key bindings in mode help.

* edwin/calias.scm[1.19]:
Use image strings when showing key bindings.

* edwin/keymap.scm[1.14]:
Change appearance of DESCRIBE-BINDINGS to be more like that of Emacs.

* edwin/hlpcom.scm[1.113]:
Fix typo.

2000-02-23 Chris Hanson <[email protected]>

* edwin/hlpcom.scm[1.112]:
Fix compiler warning.

* edwin/hlpcom.scm[1.111]:
Fix typo.

* edwin/edwin.pkg[1.242]:
Export new bindings from keymap.scm

* edwin/hlpcom.scm[1.110]:
Generalize documentation expansions to include \\< and \\{.

* edwin/keymap.scm[1.13]:
Generalize code to generate descriptions of key bindings so that it
can be used in other contexts.

* edwin/comman.scm[1.82], edwin/modes.scm[1.31]:
Add means to look up modes and commands without necessarily interning
new ones.

* edwin/fill.scm[1.61]:
Optimize code that toggles auto-fill mode.

2000-02-21 Chris Hanson <[email protected]>

* sos/sos.pkg[1.9]:
Export SORT-METHODS.

* sos/instance.scm[1.9]:
Fix a couple of bugs reported by Joe Marshall: INSTANCE-CONSTRUCTOR-3
macro erroneously quoting arity; and INITIALIZE-INSTANCE not accepting
optional arguments.

2000-02-14 Chris Hanson <[email protected]>

* runtime/rbtree.scm[1.7]:
Efficiency tweak suggested by Marc Feeley.

2000-02-07 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.14]:
Another round of changes.

* imail/imail-core.scm[1.24]:
Trim leading and trailing whitespace from header values.

* edwin/buffer.scm[1.174]:
Don't assume that a buffer-property value of #F is equivalent to no
value at all.

* imail/imail-core.scm[1.23], imail/imail-core.scm[1.22],
imail/imail-file.scm[1.9], imail/imail-file.scm[1.8],
imail/imail-rmail.scm[1.13], imail/imail-umail.scm[1.9]:
Add bit to say whether folder or message has been modified.

* microcode/version.h[11.170]:
Update to release 7.5.3.

* microcode/cmpauxmd/i386.m4[1.50], microcode/s/Attic/linux.h[1.20],
microcode/s/Attic/linux.h[1.19]:
Fix bug: in GCC 2.95.x, the callee pops the pointer to a short struct
return.

2000-02-04 Chris Hanson <[email protected]>

* imail/imail-core.scm[1.21], imail/imail-file.scm[1.7],
imail/imail-rmail.scm[1.12], imail/imail-umail.scm[1.8]:
Implement MAYBE-REVERT-FOLDER.

* imail/imail-top.scm[1.13]:
Fix improper usage of MAYBE-REVERT-BUFFER.

* imail/imail-core.scm[1.20], imail/imail-file.scm[1.6],
imail/imail-rmail.scm[1.11], imail/imail-top.scm[1.12]:
Rename COUNT-MESSAGES -> FOLDER-LENGTH.

2000-02-03 Chris Hanson <[email protected]>

* edwin/dosfile.scm[1.35], edwin/dosfile.scm[1.34]:
Fix bug: unable to run gzip properly on Windows systems if the
location of the gzip binary is in a directory with spaces in its name.
Must quote the name after it is expanded.

* imail/imail-util.scm[1.5]:
Fix fencepost error in STRING->LINES; reimplement SEPARATED-APPEND to
be faster and to eliminate inessential consing; implement
SUFFIXED-APPEND and PREFIXED-APPEND.

2000-02-01 Chris Hanson <[email protected]>

* microcode/s/Attic/freebsd.h[1.4]:
Don't use "-export-dynamic" switch.

* microcode/s/Attic/freebsd.h[1.3]:
Don't use ncurses library.

* rcs/logmer.scm[1.19]:
Another tweak.

* rcs/logmer.scm[1.18]:
Tweak to previous change.

* rcs/logmer.scm[1.17]:
Adjust for new newline convention.

* microcode/s/Attic/freebsd.h[1.2]:
If __ELF__ isn't defined, this is an old version of FreeBSD and should
be compiled using the old rules.

* microcode/version.h[11.169]:
Update version number to mark changes made to support FreeBSD.

* microcode/uxproc.c[1.25]:
If TIOCSCTTY is defined, use it. This is required for proper
operation under FreeBSD.

2000-01-31 Chris Hanson <[email protected]>

* microcode/ux.c[1.19]:
Simplify previous change.

* microcode/Attic/config.h[9.101], microcode/ux.c[1.18]:
Add special heap allocator for FreeBSD, much like the one used for
Linux, but with small differences.

* microcode/unxutl/Attic/config[1.31]:
Change to use special file for FreeBSD. When linking, specify -f to
override any existing links.

2000-01-30 Chris Hanson <[email protected]>

* microcode/version.h[11.168]:
Update release version to 7.5.1.

2000-01-27 Chris Hanson <[email protected]>

* edwin/rmail.scm[1.66]:
Fix two bugs: (1) Change M-x rmail-get-new-mail to prompt for a file
argument rather than a string argument. (2) M-x rmail-output was
writing malformed unix messages -- the date in the header line is
supposed to be in unix `ctime' format, not RFC-822 format.

2000-01-25 Chris Hanson <[email protected]>

* edwin/image.scm[1.137]:
Adjust definition of ANSI character set: most characters between #x80
and #xA0 are undefined.

2000-01-24 Chris Hanson <[email protected]>

* microcode/version.h[11.167]:
Update for release.

2000-01-21 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.11]:
Implement imail-toggle-headers and imail-search.

* imail/imail-file.scm[1.5]:
Implement simple string search.

* imail/imail-core.scm[1.19]:
Add MESSAGE->STRING.

2000-01-20 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.10]:
Add code to edit messages. Fix many bugs found by cref.

* imail/imail-core.scm[1.18]:
Define HEADER-FIELDS->LINES.

* imail/imail-core.scm[1.17]:
Delete specialize next/previous message steps.

* imail/imail-core.scm[1.16]:
Define procedures to convert between headers and strings.

* imail/imail-rmail.scm[1.10], imail/imail-rmail.scm[1.9]:
Use generic procedure SET-HEADER-FIELDS!.

* imail/imail-top.scm[1.9]:
Implement mail-sending commands.

2000-01-19 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.8]:
Implement I/O commands.

* imail/imail-top.scm[1.7]:
Implement IMAIL-REVERT-BUFFER.

* imail/imail-top.scm[1.6]:
Add code to mark and unmark messages.

* imail/imail-util.scm[1.4]:
Eliminate some unused procedures, and generalize
REMOVE-EQUAL-DUPLICATES to REMOVE-DUPLICATES.

* imail/imail-rmail.scm[1.8]:
Use folder properties to hold the RMAIL headers, rather than a special
slot. Change manipulation of message flags to match implementation
changes.

* imail/imail-core.scm[1.15]:
Change implementation of message flags to make all flags be strings.
Also make sure that implementation is truly case insensitive.

* imail/imail-core.scm[1.14]:
Add FOLDER-FLAGS.

* imail/imail-top.scm[1.5]:
Another wave of changes. Implement deletion commands.

* imail/imail-core.scm[1.13], imail/imail-core.scm[1.12],
imail/imail-file.scm[1.4], imail/imail-file.scm[1.3],
imail/imail-rmail.scm[1.7], imail/imail-umail.scm[1.7]:
Change message implementation so that each message belongs to a single
folder. Each message also contains an index within its folder, which
is automatically updated by the folder implementation. These changes
facilitate using message-based navigation rather than index
computations.

2000-01-18 Chris Hanson <[email protected]>

* imail/imail-core.scm[1.11]:
Add folder properties.

* imail/imail-top.scm[1.4]:
Fix some compilation bugs.

* imail/load.scm[1.5]:
Rewrite to use packaging system, and to load as subpackage of Edwin.

* imail/ed-ffi.scm[1.2]:
Differentiate files with Edwin syntax from those without.

* imail/imail-umail.scm[1.6]:
Fix typos.

* cref/conpkg.scm[1.7]:
Generate correct constructor when there are no exports.

* cref/make.scm[1.19], cref/redpkg.scm[1.12], cref/toplev.scm[1.13]:
Change format of ".glo" files to contain package ancestry information.

* microcode/bchdmp.c[9.85], microcode/bchdmp.c[9.84],
microcode/bchdrn.c[1.9], microcode/bchdrn.c[1.8],
microcode/bchgcc.h[9.60], microcode/bchmmg.c[9.95],
microcode/bchmmg.c[9.94], microcode/bchutl.c[1.10],
microcode/bchutl.c[1.9], microcode/bignum.c[9.48],
microcode/bintopsb.c[9.71], microcode/bintopsb.c[9.70],
microcode/bitstr.c[9.62], microcode/boot.c[9.103],
microcode/boot.c[9.102], microcode/boot.c[9.101],
microcode/fasload.c[9.87], microcode/findprim.c[9.53],
microcode/obstack.h[1.10], microcode/option.c[1.53],
microcode/osenv.h[1.9], microcode/primutl.c[9.72],
microcode/psbtobin.c[9.58], microcode/purutl.c[9.50],
microcode/terminfo.c[1.3], microcode/transact.c[1.4],
microcode/unxutl/Attic/ymkfile[1.96], microcode/ux.h[1.73],
microcode/uxfs.c[1.19], microcode/uxproc.c[1.24],
microcode/uxsig.c[1.34], microcode/uxsock.c[1.23],
microcode/uxterm.c[1.27], microcode/uxtop.c[1.23],
microcode/uxtrap.c[1.29], microcode/uxutil.c[1.7],
microcode/x11base.c[1.74], microcode/x11term.c[1.26]:
Eliminate compiler warning.

* imail/imail-rmail.scm[1.6], microcode/uxsock.c[1.22]:
Fix typo.

2000-01-16 Chris Hanson <[email protected]>

* edwin/buffrm.scm[1.57], edwin/dos.scm[1.51], edwin/image.scm[1.136],
edwin/os2.scm[1.48], edwin/unix.scm[1.105]:
Use ANSI char images for all operating systems. Both OS/2 and X
appear to do the right thing for this.

2000-01-15 Chris Hanson <[email protected]>

* microcode/version.h[11.166]:
Update release string to 7.5pre2.

* imail/imail-top.scm[1.3]:
Implement navigation commands.

* imail/imail-core.scm[1.10]:
Add negative predicates for standard flags.

* imail/imail-core.scm[1.9]:
Change external representation of message flags. Implement procedures
to map between flags and strings.

2000-01-14 Chris Hanson <[email protected]>

* imail/imail-top.scm[1.2]:
First rough outline using folder interface.

* imail/imail-core.scm[1.8]:
Add operation MAYBE-REVERT-FOLDER. Add comments describing some
thoughts about how IMAP interactions will occur with online and
disconnected modes.

* imail/print.sh[1.2]:
Add "imail-top.scm".

* imail/imail-core.scm[1.7]:
Alphabetize names of standard message flags.

* imail/imail-core.scm[1.6]:
Add procedures to hide manipulation of standard message flags.

* imail/Attic/rfc822.scm[1.3], imail/imail-file.scm[1.2],
imail/imail-util.scm[1.3], imail/load.scm[1.4]:
Update copyright date.

* imail/imail-rmail.scm[1.5], imail/imail-umail.scm[1.5]:
Don't do newline translation on RMAIL or unix mail files.

* imail/imail-core.scm[1.5], imail/imail-rmail.scm[1.4]:
Use SEEN rather than UNSEEN as message flag in imail.

* imail/imail-umail.scm[1.4]:
Redesign the message-reading code so that it can read one message at a
time.

2000-01-13 Chris Hanson <[email protected]>

* imail/imail-rmail.scm[1.3], imail/imail-umail.scm[1.3]:
Implement import and export of messages and folders. Clean up
interface to I/O procedures so that it can be used for this purpose.

* imail/imail-core.scm[1.4]:
Genericize ->URL. Hold memoized folders with weak pointers. Add new
procedures WRITE-FOLDER and MAYBE-STRIP-IMAIL-HEADERS.

* microcode/ntscreen.c[1.41]:
Fix bug: Symbolic constants for accessing fields of LPARAM described
in documentation do not work as advertised. Instead use explicit
numeric constants.

* microcode/ntscreen.c[1.40]:
Fix bug: code to detect interrupt characters was inadvertently broken
by the recent upheaval in the keyboard handling.

2000-01-12 Chris Hanson <[email protected]>

* microcode/ntscreen.c[1.39]:
Fix bug: when used with European keyboards, keys typed with AltGr
always had the control and meta modifiers set. Also add code to clear
out the keyboard modifiers on a language change.

2000-01-10 Chris Hanson <[email protected]>

* microcode/ntgui.c[1.27], microcode/ntscreen.c[1.38],
microcode/ntscreen.h[1.19], microcode/version.h[11.165]:
Complete redesign of keyboard input code. New design adapted from
Emacs 20.5 code.

* edwin/buffrm.scm[1.56]:
Try a different fix; previous one violated the load sequence.

* compiler/base/toplev.scm[4.58]:
Move many more newlines to match new convention.

* compiler/base/toplev.scm[4.59],
compiler/machines/i386/compiler.sf[1.10],
compiler/machines/i386/decls.scm[1.9], edwin/decls.scm[1.67],
edwin/decls.scm[1.66], edwin/edwin.sf[1.23], edwin/edwin.sf[1.22],
runtime/error.scm[14.51], runtime/error.scm[14.50],
runtime/global.scm[14.52], runtime/load.scm[14.55],
sf/toplev.scm[4.17]:
Move another call to newline.

* edwin/buffrm.scm[1.55], edwin/dos.scm[1.50], edwin/editor.scm[1.246],
edwin/image.scm[1.135], edwin/iserch.scm[1.22],
edwin/modlin.scm[1.21], edwin/os2.scm[1.47], edwin/snr.scm[1.55],
edwin/unix.scm[1.104]:
Generate set of ANSI character image strings, and make that the
default set to be used under Windows. This is necessary so that Edwin
will work more-or-less right with other languages.

2000-01-09 Chris Hanson <[email protected]>

* sf/toplev.scm[4.16]:
Change to write newlines after the lines rather than before.

2000-01-07 Chris Hanson <[email protected]>

* imail/load.scm[1.3]:
Add extra load-option statements.

* imail/imail-core.scm[1.3]:
Change names of tags that identify property type when encoded as
header field.

* imail/Attic/rfc822.scm[1.2]:
Some reorganization. Fix several bugs related to parsing of
continuation lines.

* imail/imail-umail.scm[1.2]:
Final pass; this code now seems to work.

* imail/imail-util.scm[1.2]:
Implement READ-LINES.

* imail/imail-core.scm[1.2], imail/imail-rmail.scm[1.2]:
Fix a handful of small bugs.

* imail/load.scm[1.2]:
Add code to bind correct load directory.

* microcode/option.c[1.52]:
Under NT, always use native I/O, independent of the compiler in use.

2000-01-06 Chris Hanson <[email protected]>

* microcode/option.c[1.51], microcode/option.c[1.50]:
Work around a bug in the Watcom runtime library.

2000-01-05 Chris Hanson <[email protected]>

* edwin/filcom.scm[1.205], edwin/fileio.scm[1.149],
runtime/dosprm.scm[1.43], runtime/ntprm.scm[1.33],
runtime/os2prm.scm[1.45], runtime/unxprm.scm[1.59]:
Change name from FILE-WRITABLE? to FILE-WRITEABLE?.

2000-01-04 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.336], runtime/strout.scm[14.13]:
Change interface to string output ports: rename to accumulator output
port and provide separate operation to extract contents. Port is
reset when contents are extracted; previously contents remained in the
port.

* runtime/defstr.scm[14.33], runtime/runtime.pkg[14.335]:
Add option SAFE-ACCESSORS, for situations where safety is more
important than speed.

2000-01-01 Chris Hanson <[email protected]>

* edwin/rmail.scm[1.65]:
Fix Y2K bug!

1999-12-31 Chris Hanson <[email protected]>

* runtime/string.scm[14.28]:
Allow BURST-STRING to take a character set as a delimiter.

1999-12-28 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.109]:
Another tweak to REPL mode to get line spacing right.

1999-12-27 Chris Hanson <[email protected]>

* runtime/os2prm.scm[1.44]:
Don't forget that .cmd is an executable file.

1999-12-22 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.108]:
In M-x inferior-repl-flush-output, don't skip forward over newline at
end of input expression if end marker is at line start.

* runtime/pp.scm[14.40]:
Do FRESH-LINE at beginning of PP, not NEWLINE.

* edwin/edwin.sf[1.21], edwin/fileio.scm[1.148]:
Compensate for changed semantics of COPY-FILE.

* edwin/unix.scm[1.103]:
Add "/usr/share/info" to INFO-DEFAULT-DIRECTORY-LIST.

1999-12-21 Chris Hanson <[email protected]>

* runtime/unxprm.scm[1.58]:
Don't delete file that is target of COPY-FILE. This is inconsistent
with action on other operating systems, and is also not a good idea.

* microcode/uxenv.c[1.19]:
Don't use geteuid to determine the current user; use getuid.

* runtime/blowfish.scm[1.18], runtime/input.scm[14.20],
runtime/runtime.pkg[14.334]:
Implement READ-SUBSTRING!, and change definition of READ-STRING! so
that it no longer takes the substring range arguments.

* microcode/version.h[11.164]:
Update version for pending release.

* microcode/ntfs.c[1.25], microcode/os2fs.c[1.11],
microcode/osfs.h[1.8], microcode/prosfs.c[1.14],
microcode/uxfs.c[1.18], runtime/sfile.scm[14.23]:
Define new primitive FILE-EXISTS-DIRECT?.

1999-12-20 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.107]:
Make sure that evaluation output always starts on a fresh line.

* runtime/output.scm[14.22]:
Change definition of WRITE-LINE so that the newline is emitted after
the object, rather than before it as previously.

* compiler/base/debug.scm[4.15], compiler/etc/comcmp.scm[1.6],
runtime/debug.scm[14.40], runtime/load.scm[14.54]:
Eliminate instances of WRITE-LINE.

* runtime/regexp.scm[1.6]:
Fix typo in last change. Change order of arguments to
RE-MATCH-EXTRACT.

1999-12-16 Chris Hanson <[email protected]>

* runtime/unxprm.scm[1.57]:
Fix bug: home directory should always be a directory pathname.

* runtime/regexp.scm[1.5], runtime/runtime.pkg[14.333]:
Implement RE-MATCH-EXTRACT.

1999-12-15 Chris Hanson <[email protected]>

* rcs/mklogs.scm[1.15], rcs/mklogs.scm[1.14]:
Missed a directory in last change.

* rcs/mklogs.scm[1.13]:
Update to reflect changes to directory structure.

1999-12-10 Chris Hanson <[email protected]>

* edwin/xterm.scm[1.61]:
Don't use **** in comments unless it marks an action item.

* edwin/xterm.scm[1.60]:
Rename procedures that convert between X atoms and Scheme symbols.

* edwin/xterm.scm[1.59]:
Add workaround for broken X selection clients, such as GTK+.

1999-12-06 Chris Hanson <[email protected]>

* edwin/unix.scm[1.102]:
Don't pass -c argument to gzip or bzip2. This argument was added in
revision 1.99. Although -c works OK for gzip, it doesn't work with
bzip2. Since this argument isn't needed, and had no effect on the
problem it was supposed to solve, we won't use it.

1999-11-19 Chris Hanson <[email protected]>

* runtime/sfile.scm[14.22], runtime/sfile.scm[14.21]:
New procedure DIRECTORY-FILE-NAMES for those cases when DIRECTORY-READ
is a pain.

1999-11-11 Chris Hanson <[email protected]>

* runtime/dospth.scm[1.40]:
Fix bug: don't signal error for filenames with ":" in them, which can
occur on Samba servers.

1999-11-08 Chris Hanson <[email protected]>

* compiler/rtlopt/rcserq.scm[4.7], compiler/rtlopt/rdflow.scm[1.4],
edwin/snr.scm[1.54], pcsample/pcsdisp.scm[1.3],
runtime/io.scm[14.60], runtime/os2graph.scm[1.16],
runtime/vector.scm[14.14], runtime/vector.scm[14.13]:
Change order of arguments to VECTOR-MAP.

1999-11-05 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.106]:
When starting a new REPL, don't associate it with the current buffer;
avoid confusion by letting the user do this manually.

* edwin/snr.scm[1.53]:
SPLIT-LIST now implemented in "utils.scm".

* edwin/buffer.scm[1.173]:
Fix bug: UNDO-LOCAL-BINDINGS! must run the variable assignment daemons
for the impermanent variables, and not the permanent variables. What
it was doing was running it on a subset of the permanent variables,
due to a stupid programming error.

* edwin/utils.scm[1.46]:
Implement SPLIT-LIST.

1999-11-01 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.172], edwin/grpops.scm[1.25],
edwin/macros.scm[1.65], edwin/struct.scm[1.92]:
Eliminate macro DEFINE-NAMED-STRUCTURE.

* edwin/modes.scm[1.30]:
Fix typo.

* edwin/txtprp.scm[1.18]:
Eliminate reference to GROUP-INDEX:MODIFIED-TICK.

* edwin/modes.scm[1.29]:
Retain inheritance information for major modes.

* edwin/comman.scm[1.81]:
Eliminate %SYMBOL->STRING.

1999-10-31 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.105]:
Fix thinko.

* edwin/intmod.scm[1.104]:
Change argument to CURRENT-REPL-BUFFER and CURRENT-REPL-BUFFER* to be
optional.

* edwin/edwin.pkg[1.241], edwin/intmod.scm[1.103]:
Create mechanism and command to associate an inferior REPL buffer with
another buffer for evaluation purposes. Change M-x repl to
automatically associate a newly-created REPL buffer with the current
buffer.

1999-10-28 Chris Hanson <[email protected]>

* microcode/os2sock.c[1.14]:
Eliminate compiler warning.

1999-10-26 Chris Hanson <[email protected]>

* rcs/Attic/make.scm[1.5]:
Set the working directory when loading this file.

1999-10-23 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.102]:
Don't add newline before prompt at beginning of buffer.

* runtime/uenvir.scm[14.40]:
Fix thinko.

* edwin/intmod.scm[1.101]:
Rewrite M-x repl so that it is easy to generate new REPL buffers in
new environments.

* runtime/runtime.pkg[14.332], runtime/uenvir.scm[14.39]:
Implement EXTEND-IC-ENVIRONMENT.

* runtime/Attic/syntax.scm[14.32]:
Bind USER-INITIAL-SYNTAX-TABLE to USER-INITIAL-ENVIRONMENT.

1999-10-09 Chris Hanson <[email protected]>

* edwin/javamode.scm[1.8]:
Change $ back to prefix character in PHP mode. This is required for
it to work right with ${...} syntax.

1999-10-08 Chris Hanson <[email protected]>

* edwin/javamode.scm[1.7]:
Don't modify c-continued-brace-offset in PHP mode. PHP mode no longer
inherits from Java mode.

1999-10-07 Chris Hanson <[email protected]>

* edwin/javamode.scm[1.6]:
Define $ to be symbol constituent rather than prefix character in PHP
mode.

* edwin/dosfile.scm[1.33], edwin/unix.scm[1.101]:
Add suffixes for HTML mode.

* edwin/edwin.ldr[1.68]:
HTML mode must be loaded after Text mode.

* edwin/README[1.2]:
Update for new directory arrangement.

* edwin/decls.scm[1.65], edwin/ed-ffi.scm[1.48], edwin/edwin.ldr[1.67],
edwin/edwin.pkg[1.240]:
Implement HTML mode.

* edwin/javamode.scm[1.5]:
Fix typo.

* edwin/c-mode.scm[1.56], edwin/cinden.scm[1.20]:
Tweak syntax and naming a bit.

* edwin/javamode.scm[1.4], edwin/unix.scm[1.100]:
Implement PHP mode.

1999-09-15 Chris Hanson <[email protected]>

* edwin/dosfile.scm[1.32]:
Fix thinko.

1999-09-14 Chris Hanson <[email protected]>

* edwin/process.scm[1.57]:
Poll subprocess for output after it has exited, to make sure output
isn't lost.

* edwin/compile.scm[1.13]:
Always run compilation subprocesses with pipes.

1999-09-11 Chris Hanson <[email protected]>

* edwin/unix.scm[1.99]:
Change calls to gzip and bzip2 to pass "-c" option.

* runtime/unxprm.scm[1.56]:
Look for USER environment variable before searching password file.
This is needed for systems in which users aren't recorded in the
password file.

* 6001/edextra.scm[1.29]:
Don't hack mail address any longer. Students now have real accounts.

1999-09-07 Chris Hanson <[email protected]>

* runtime/optiondb.scm[1.8]:
Add "krypt" to standard set of load options.

1999-08-26 Chris Hanson <[email protected]>

* edwin/comint.scm[1.30], edwin/intmod.scm[1.100]:
Fix FOO-flush-output so that it works right when the output doesn't
start with a newline.

1999-08-24 Chris Hanson <[email protected]>

* edwin/shell.scm[1.21]:
Fix typo.

1999-08-23 Chris Hanson <[email protected]>

* edwin/fileio.scm[1.147]:
Fix typo.

1999-08-20 Chris Hanson <[email protected]>

* 6001/floppy.scm[1.26], edwin/dosfile.scm[1.31],
edwin/malias.scm[1.5], edwin/manual.scm[1.16], edwin/rmail.scm[1.64],
edwin/rmailsrt.scm[1.12], edwin/shell.scm[1.20], edwin/snr.scm[1.52],
edwin/telnet.scm[1.15], runtime/regexp.scm[1.4]:
Change string/substring regular-expression procedures to return a
set of registers on a successful match rather than modifying a global
set of registers. This fixes the problem in which an unlucky thread
switch can generate an error or incorrect answer.

1999-08-15 Chris Hanson <[email protected]>

* microcode/ntsock.c[1.8], microcode/os2sock.c[1.13]:
Fix typo.

1999-08-14 Chris Hanson <[email protected]>

* runtime/blowfish.scm[1.17], runtime/blowfish.scm[1.16]:
Improve method used to compute initialization vectors.

1999-08-13 Chris Hanson <[email protected]>

* microcode/ntsock.c[1.7], microcode/os2sock.c[1.12],
microcode/uxsock.c[1.21]:
Fix calling arguments to gethostbyaddr.

* runtime/runtime.pkg[14.331], runtime/socket.scm[1.15]:
Implement and export various host-name manipulating procedures.
Change TCP-SERVER-CONNECTION-ACCEPT to accept the peer address as an
argument and to return only a single value.

* runtime/blowfish.scm[1.14]:
Add new ECB and OFB modes.

* microcode/prbfish.c[1.8], microcode/prbfish.c[1.7],
microcode/uxsock.c[1.20], runtime/blowfish.scm[1.15]:
Fix typo.

* microcode/ntsock.c[1.6], microcode/os2sock.c[1.11],
microcode/pruxsock.c[1.17], microcode/uxsock.c[1.19],
microcode/uxsock.h[1.9]:
Add new primitive GET-HOST-BY-ADDRESS.

* microcode/prbfish.c[1.6]:
Add ECB and OFB modes.

1999-08-10 Chris Hanson <[email protected]>

* edwin/edwin.ldr[1.66]:
Don't load krypt.

* runtime/blowfish.scm[1.13]:
Wipe buffer strings that might contain plaintext.

* edwin/comint.scm[1.29], edwin/dired.scm[1.170],
edwin/dosfile.scm[1.30], edwin/edwin.pkg[1.239],
edwin/filcom.scm[1.204], edwin/fileio.scm[1.146],
edwin/rmail.scm[1.63], edwin/unix.scm[1.98]:
Eliminate use of krypt and the ".ky" file suffix. Change all
encryption commands to use Blowfish, and also to be more paranoid
about eliminating passphrases and plaintext after use.

* edwin/prompt.scm[1.184]:
Eliminate PROMPT-FOR-PASSWORD in favor of CALL-WITH-PASS-PHRASE. The
latter wipes the string containing the pass phrase after use.

1999-08-09 Chris Hanson <[email protected]>

* runtime/random.scm[14.22]:
Tweak /dev/random loop to be a little cleaner.

* runtime/random.scm[14.21]:
More changes for cold-load problems.

* runtime/random.scm[14.20]:
Tweak previous change so that cold-load sequence works. Change
MAKE-RANDOM-STATE to avoid use of CONGRUENTIAL-RNG when /dev/urandom
is being used.

* runtime/random.scm[14.19]:
If /dev/random is available, use it to seed the PRNG.

* microcode/prbfish.c[1.5]:
Eliminate BLOWFISH-CFB64. Modify BLOWFISH-CBC and
BLOWFISH-CFB64-SUBSTRING to accept the output buffer as an argument.
This allows better control of memory allocation. Also modify
BLOWFISH-CFB64-SUBSTRING to return the new value of `num' so that the
Scheme code need not re-compute it.

* runtime/blowfish.scm[1.12], runtime/cpress.scm[1.12],
runtime/output.scm[14.21]:
Fix typo.

* runtime/blowfish.scm[1.11]:
Change to use new primitives that reduce consing. Eliminate
BLOWFISH-CFB64; rename BLOWFISH-CFB64-SUBSTRING to be BLOWFISH-CFB64.
Don't preprocess key-string with MD5 in BLOWFISH-ENCRYPT-PORT.
Eliminate BLOWFISH-ENCRYPT-STRING and BLOWFISH-ENCRYPT-SUBSTRING.

* runtime/cpress.scm[1.11]:
Change internal name from WRITE-SUBSTRING to WRITE-BYTES to avoid
collision with new global procedure WRITE-SUBSTRING.

* edwin/prompt.scm[1.183]:
Change calls to PROMPT-FOR-PASSWORD to say "pass phrase" rather than
"password", to encourage use of longer phrases.

* edwin/dosfile.scm[1.29], edwin/filcom.scm[1.203],
edwin/unix.scm[1.97]:
Runtime system no longer runs MD5 on the passphrase handed to
Blowfish.

* runtime/output.scm[14.20], runtime/runtime.pkg[14.330]:
Add new procedure WRITE-SUBSTRING.

* runtime/krypt.scm[1.10]:
Add key to enable krypt support, just like the one used for blowfish.

* runtime/blowfish.scm[1.10], runtime/blowfish.scm[1.9]:
Arrgh. Fix another instance of the init-vector thinko.

* edwin/dosfile.scm[1.28], edwin/filcom.scm[1.202],
edwin/unix.scm[1.96]:
Modify usage of blowfish encryption to match new design in which
header manipulation handles the init-vector.

* runtime/blowfish.scm[1.8]:
Fix my broken understanding of the role of the init-vector in the
encryption process. Essential property of the init-vector in CFB
encryption is that no two messages encrypted with the same key should
also use the same init-vector. New design will read files encrypted
with previous scheme, but writes them using the current time as the
init-vector, and writes the init-vector into the file as part of the
header.

1999-07-31 Chris Hanson <[email protected]>

* runtime/apropos.scm[1.5], runtime/string.scm[14.27]:
Fix thinko.

1999-07-26 Chris Hanson <[email protected]>

* runtime/socket.scm[1.14]:
Change TCP-SERVER-CONNECTION-ACCEPT to return two values rather than
three.

1999-07-06 Chris Hanson <[email protected]>

* runtime/apropos.scm[1.4]:
Fix argument order for SUBSTRING?. Reformat.

* runtime/advice.scm[14.16]:
Copy the arguments list returned by *ARGS*.

1999-06-26 Chris Hanson <[email protected]>

* edwin/regexp.scm[1.73]:
Don't use RE-REGISTERS and SET-RE-REGISTERS! any more; use direct
access to the REGISTERS variable instead. This code broke when the
representation of RE-REGISTERS changed recently. Rather than expose
the entire abstraction to this code, it seems better to just bypass
it altogether.

1999-06-22 Chris Hanson <[email protected]>

* runtime/regexp.scm[1.3]:
Change external representation of regular-expression registers so that
predicate is uniquely true of these objects. Modify
re-match-start-index and re-match-end-index to accept one of these
objects as an optional argument, meaning to reference the object
rather than the internal registers.

* runtime/string.scm[14.26]:
Fix fencepost error in STRING-SEARCH-ALL.

1999-06-21 Chris Hanson <[email protected]>

* runtime/dosdir.scm[1.9], runtime/string.scm[14.25]:
Change arguments to string-search procedures to make them consistent
with regular-expression searches.

* runtime/regexp.scm[1.2]:
Change string regexp search procedures to make their returned indexes
consistent with the string search procedures.

* runtime/emacs.scm[14.27], runtime/runtime.pkg[14.329],
runtime/tscript.scm[1.4]:
Fix bug: scheme-under-emacs stopped working due to port-encapsulation
changes. This isn't a general fix -- it only handles the one kind of
encapsulation that occurs in this place. If other kinds of
encapsulation are used, this will have to be generalized.

1999-06-10 Chris Hanson <[email protected]>

* runtime/string.scm[14.24]:
Fix fencepost error in string-search-forward.

1999-06-06 Chris Hanson <[email protected]>

* edwin/unix.scm[1.95]:
Add support for files compressed with bzip2.

1999-06-03 Chris Hanson <[email protected]>

* rcs/mklogs.scm[1.12]:
Add a few more directories to have their RCS.log files updated.

1999-05-21 Chris Hanson <[email protected]>

* edwin/dosfile.scm[1.27]:
Rename re-string-search to re-string-search-forward.

1999-05-18 Chris Hanson <[email protected]>

* runtime/blowfish.scm[1.7]:
Add lock to blowfish code. The code now will work only if the key
file is in the appropriate location.

1999-05-15 Chris Hanson <[email protected]>

* runtime/lambda.scm[14.15]:
Eliminate #!aux quoting problem.

* runtime/parse.scm[14.33]:
Fix previous change. Problem is subtle -- LAMBDA-AUXILIARY-TAG was
being used in one place as an expression and in another as a constant.
Now it is defined to be a constant, and the expression usage has been
tweaked to expect a constant.

1999-05-14 Chris Hanson <[email protected]>

* runtime/parse.scm[14.32]:
Change #!aux to be an interned symbol.

1999-05-13 Chris Hanson <[email protected]>

* edwin/comhst.scm[1.7], edwin/decls.scm[1.64], edwin/ed-ffi.scm[1.47],
edwin/edwin.ldr[1.65], edwin/edwin.pkg[1.238],
edwin/evlcom.scm[1.62], edwin/lspcom.scm[1.159],
edwin/regexp.scm[1.72], edwin/rmail.scm[1.62],
edwin/rmailsrt.scm[1.11], edwin/rmailsum.scm[1.35],
edwin/strtab.scm[1.47], edwin/syntax.scm[1.84],
runtime/ed-ffi.scm[1.21], runtime/optiondb.scm[1.7],
runtime/rgxcmp.scm[1.110], runtime/runtime.pkg[14.328]:
Move regular-expression support to the runtime system, where it is now
a loadable option.

* edwin/compile.scm[1.12]:
Fix typo.

1999-05-11 Chris Hanson <[email protected]>

* edwin/editor.scm[1.245], edwin/edwin.pkg[1.237]:
Use new procedure SIMPLE-COMMAND-LINE-PARSER in place of
SIMPLE-OPTION-PARSER.

* runtime/load.scm[14.53], runtime/load.scm[14.52],
runtime/runtime.pkg[14.327]:
Implement new procedures SIMPLE-COMMAND-LINE-PARSER and
ARGUMENT-COMMAND-LINE-PARSER and export them to global.

* microcode/ntutl/makefile[1.24], microcode/ntutl/makefile.wcc[1.13],
microcode/option.c[1.49], microcode/os2utl/makefile.cmn[1.12],
microcode/unxutl/Attic/ymkfile[1.95]:
Change option code so that "-compiler" and "-edwin" can be specified
together, in which case they select the "all.com" band. Also modify
the heap-sizing code so that the default constant size is taken from
the band, and the heap size is increased by the amount of heap in the
band.

1999-05-08 Chris Hanson <[email protected]>

* edwin/bufwin.scm[1.307], edwin/screen.scm[1.117]:
Delete definitions of FIX:MIN and FIX:MAX, which are now defined by
the runtime system.

* runtime/string.scm[14.23]:
Fix thinko in previous change.

* runtime/runtime.pkg[14.326], runtime/string.scm[14.22]:
Implement STRING-SEARCH-ALL and SUBSTRING-SEARCH-ALL.

1999-05-07 Chris Hanson <[email protected]>

* runtime/string.scm[14.21]:
Fix fencepost bug.

* runtime/ed-ffi.scm[1.20]:
Fix bug: "string.scm" had wrong package designation.

* runtime/dosdir.scm[1.8], runtime/runtime.pkg[14.325],
runtime/string.scm[14.20]:
Implement Boyer-Moore string search. Also add procedures to reverse
string contents.

* runtime/fixart.scm[1.4]:
Implement FIX:MIN and FIX:MAX.

1999-05-04 Chris Hanson <[email protected]>

* edwin/loadef.scm[1.40], edwin/pwedit.scm[1.7]:
Interpret contents of password-file variable as relative to the user's
home directory.

* edwin/loadef.scm[1.39], edwin/loadef.scm[1.38],
edwin/pwedit.scm[1.6], edwin/pwedit.scm[1.5]:
Define variable that specifies the password filename for the
view-password-file command.

1999-04-28 Chris Hanson <[email protected]>

* microcode/os2pmcon.c[1.25]:
Change default font to "8.Courier".

* microcode/os2sock.c[1.10]:
Add definition needed for use with newer versions of the Developer's
Toolkit for OS/2.

1999-04-27 Chris Hanson <[email protected]>

* runtime/datime.scm[14.22]:
Fix thinko in error call.

1999-04-26 Chris Hanson <[email protected]>

* runtime/os2prm.scm[1.43]:
Fix logic so that CURRENT-HOME-DIRECTORY doesn't generate an error if
neither HOME nor USER is defined.

1999-04-24 Chris Hanson <[email protected]>

* runtime/ntprm.scm[1.32]:
Fix bug that occurred when the HOME environment variable wasn't set.

1999-04-20 Chris Hanson <[email protected]>

* runtime/syncproc.scm[1.8]:
Use reasonable default working directory.

1999-04-08 Chris Hanson <[email protected]>

* runtime/datime.scm[14.21], runtime/runtime.pkg[14.324]:
Implement remaining time-representation conversions.

1999-04-07 Chris Hanson <[email protected]>

* runtime/datime.scm[14.20], runtime/string.scm[14.19]:
Implement remainder of RFC-822 syntax: optional day-of-week, two-digit
year, and named time zones. Fix bug: formerly would accept times with
more than one colon in a row.

* runtime/datime.scm[14.19], runtime/datime.scm[14.18],
runtime/dosprm.scm[1.42], runtime/krypt.scm[1.9],
runtime/ntprm.scm[1.31], runtime/os2prm.scm[1.42],
runtime/runtime.pkg[14.323], runtime/savres.scm[14.31],
runtime/unxprm.scm[1.55], runtime/version.scm[14.180]:
This change requires microcode 11.163 or later.

Rationalize naming of time-conversion procedures. Implement
procedures to manage decoded time in UTC. Implement procedure to
convert an RFC-822 time string to decoded-time format.

* runtime/runtime.pkg[14.322], runtime/string.scm[14.18]:
Implement BURST-STRING.

* microcode/ntapi.h[1.11], microcode/ntenv.c[1.18],
microcode/os2api.h[1.12], microcode/os2env.c[1.12],
microcode/prosenv.c[1.16], microcode/syscall.h[1.12],
microcode/ux.h[1.72], microcode/uxenv.c[1.18],
microcode/uxtop.c[1.22], microcode/version.h[11.163]:
Implement primitive to decode unix time to UTC.

1999-03-26 Chris Hanson <[email protected]>

* runtime/ntprm.scm[1.30]:
Fix type error.

* runtime/fileio.scm[1.18]:
Fix thinko.

* runtime/thread.scm[1.33]:
Work around stupid restriction in 8.0 compiler.

1999-03-25 Chris Hanson <[email protected]>

* runtime/udata.scm[14.20]:
Eliminate compiler warning.

1999-03-24 Chris Hanson <[email protected]>

* microcode/hppacach.c[1.13]:
Fix: probe for different kernel files.

1999-03-18 Chris Hanson <[email protected]>

* edwin/buffrm.scm[1.54], edwin/modwin.scm[1.41]:
Fix bug: modeline "modified" indicator not properly updated when
buffer unmodified and initial changes are outside the visible portion
of the buffer.

1999-03-17 Chris Hanson <[email protected]>

* edwin/wincom.scm[1.123]:
Change SHRINK-WINDOW-IF-LARGER-THAN-BUFFER so that it will grow the
window if it is a pop-up window that is smaller than it wants to be.

1999-03-15 Chris Hanson <[email protected]>

* runtime/parse.scm[14.31]:
Signal an error when *parser-radix* is set to a non-default radix and
the reader encounters radix-10 syntax that is meaningless under the
given radix.

1999-03-09 Chris Hanson <[email protected]>

* microcode/ntapi.h[1.10], microcode/prntenv.c[1.9]:
Implement primitives to provide registry access.

1999-03-04 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.321]:
Load all pathname types on every operating system. This allows
pathname objects dumped on one system to be used on another.

* compiler/base/toplev.scm[4.57], compiler/base/toplev.scm[4.56]:
Use pathname object for info descriptor rather than namestring. This
will allow runtime system to use these descriptors on operating
systems other than the one on which the code is compiled.

* runtime/infutl.scm[1.62]:
Allow debugging info descriptor to be a pathname as an alternative to
a namestring.

1999-03-03 Chris Hanson <[email protected]>

* microcode/s/Attic/linux.h[1.18]:
Comment out override of TERMCAP_FILES now that we have upgraded our
machines to Debian 2.0.

* edwin/make.scm[3.99], edwin/win32.scm[1.10]:
This version of Edwin requires microcode 11.162 or later if used under
Win32.

Extensive changes to use new single input queue, and to implement
event-stream previewer. (The single input queue was required for
proper implementation of the previewer.) With this change, the Win32
platform has the ability to abort out of any Edwin command, as has
been true of all other platforms for years.

I also took the opportunity to considerably clean up the event code.

* microcode/ntgui.c[1.26], microcode/ntscreen.c[1.37],
microcode/ntscreen.h[1.18], microcode/version.h[11.162]:
Extensive changes to implement a single input queue for all screens.
This was once kludged around in Edwin but is now fixed.

1999-03-01 Chris Hanson <[email protected]>

* edwin/nntp.scm[1.24]:
Revert previous change, which was really due to a bug in the runtime
system's handling of input events.

* runtime/thread.scm[1.32]:
Revamp input-event signalling mechanism to more explicitly distinguish
between events with permanent registration and those with temporary
registration. The procedure DEREGISTER-ALL-EVENTS was deregistering
permanently registered events, thus causing various subtle failures --
mostly in Edwin.

1999-02-28 Chris Hanson <[email protected]>

* edwin/nntp.scm[1.23]:
Another patch to attempt to fix redisplay problems with long online
operations.

* edwin/xterm.scm[1.58]:
Eliminate definition of WITH-THREAD-EVENTS-BLOCKED, which is now
implemented by the runtime system.

1999-02-25 Chris Hanson <[email protected]>

* runtime/ntprm.scm[1.29], runtime/ntprm.scm[1.28],
runtime/os2prm.scm[1.41], runtime/unxprm.scm[1.54]:
Change heuristics used to find a temporary directory.

* runtime/port.scm[1.19], runtime/port.scm[1.18]:
Guarantee that port-type specifies standard operations.

1999-02-24 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.99]:
Eliminate kludge that used to compensate for continuations not knowing
about the BLOCK-THREAD-EVENTS flag.

* runtime/io.scm[14.59], runtime/os2graph.scm[1.15],
runtime/x11graph.scm[1.49]:
Use new procedure WITH-THREAD-EVENTS-BLOCKED.

* edwin/artdebug.scm[1.28], edwin/bufinp.scm[1.8],
edwin/bufout.scm[1.13], edwin/debug.scm[1.48],
edwin/intmod.scm[1.98], edwin/winout.scm[1.13],
runtime/emacs.scm[14.26], runtime/fileio.scm[1.17],
runtime/genio.scm[1.15], runtime/port.scm[1.17],
runtime/runtime.pkg[14.320], runtime/strnin.scm[14.8],
runtime/strott.scm[14.9], runtime/strout.scm[14.12],
runtime/ttyio.scm[1.12]:
Merge different port-type constructors into MAKE-PORT-TYPE.

* runtime/conpar.scm[14.38], runtime/runtime.pkg[14.319],
runtime/thread.scm[1.31]:
Implement WITH-THREAD-EVENTS-BLOCKED and hook it into the continuation
parser.

* runtime/conpar.scm[14.37], runtime/runtime.pkg[14.318]:
Pass continuation's BLOCK-THREAD-EVENTS? member through the stack
parser. This isn't right, but unless we implement
WITH-THREAD-EVENTS-BLOCKED, there's no way to do better.

* runtime/contin.scm[14.10], runtime/contin.scm[14.9],
runtime/runtime.pkg[14.317], runtime/thread.scm[1.30],
runtime/thread.scm[1.29], runtime/thread.scm[1.28],
runtime/thread.scm[1.27], runtime/thread.scm[1.26]:
Save "block-thread-events" flag in continuations. This guarantees
that it will be properly stored no matter where the continuation is
captured.

1999-02-23 Chris Hanson <[email protected]>

* runtime/rep.scm[14.55], runtime/rep.scm[14.54],
runtime/runtime.pkg[14.316], runtime/thread.scm[1.25]:
When user aborts a computation, deregister all outstanding thread
events.

* microcode/prntio.c[1.11]:
Fix bug: when running something in a REPL buffer, Edwin would
completely ignore all input. It turned out that the "select"
mechanism was only looking at events for the console window, and not
for other windows, so it was blocking indefinitely.

1999-02-22 Chris Hanson <[email protected]>

* edwin/xterm.scm[1.57]:
Fix bug: when switching between fvwm2 virtual desktops, Edwin wasn't
redisplaying immediately if it was busy doing something else. This
happened because it was not processing "expose" events until it
returned to the command level.

1999-02-18 Chris Hanson <[email protected]>

* edwin/bufinp.scm[1.7], edwin/tterm.scm[1.30],
runtime/dosproc.scm[1.3], runtime/strnin.scm[14.7],
runtime/strott.scm[14.8], runtime/strout.scm[14.11]:
Eliminate references to obsolete port operations.

* edwin/make.scm[3.98]:
Changes corresponding to new transcript mechanism in runtime 14.179.

* edwin/intmod.scm[1.97]:
Minor tweaks so that transcript of REPL buffer is recorded properly.

* edwin/edwin.pkg[1.236], edwin/tterm.scm[1.29]:
Eliminate references to old transcript mechanism.

* runtime/port.scm[1.16], runtime/rep.scm[14.53],
runtime/runtime.pkg[14.315], runtime/tscript.scm[1.3],
runtime/ttyio.scm[1.11], runtime/version.scm[14.179]:
* Add mechanism to encapsulate one port in another, and to build
wrappers around selected operations on the encapsulated port.

* Use new encapsulation mechanism to reimplement transcript facility
so that each transcript is associated with a particular REPL.
Previously the transcript was directly associated with the console
port.

This change is the goal of all of the port changes from this past
week. (I'm a little surprised at the depth of changes required.)

This has the side effect of increasing modularity, since the
transcript code is now concentrated in one file rather than being
integrated into the console port.

* Export procedure OUTPUT-PORT/FRESH-LINE to the global environment.
This was an oversight from previous changes.

1999-02-16 Chris Hanson <[email protected]>

* runtime/port.scm[1.15]:
When doing port-type inheritance, don't inherit any standard
operations if one or more is given.

* edwin/artdebug.scm[1.27], edwin/bufinp.scm[1.6],
edwin/bufout.scm[1.12], edwin/debug.scm[1.47],
edwin/intmod.scm[1.96], edwin/winout.scm[1.12],
runtime/emacs.scm[14.25], runtime/emacs.scm[14.24],
runtime/fileio.scm[1.16], runtime/genio.scm[1.14],
runtime/runtime.pkg[14.314], runtime/strnin.scm[14.6],
runtime/strott.scm[14.7], runtime/strout.scm[14.10],
runtime/ttyio.scm[1.10]:
Use new port types mechanism.

* runtime/runtime.pkg[14.313]:
Export MAKE-PORT.

* runtime/output.scm[14.19], runtime/port.scm[1.14],
runtime/runtime.pkg[14.312]:
Change the port implementation to have a type that holds the
operations on the port. This new implementation supports a crude form
of single inheritance.

* runtime/infutl.scm[1.61], runtime/runtime.pkg[14.311]:
Don't export {IN,OUT}PUT-PORT/OPERATION/ procedures to the global
environment.

* runtime/fileio.scm[1.15], runtime/genio.scm[1.13],
runtime/io.scm[14.58], runtime/runtime.pkg[14.310],
runtime/ttyio.scm[1.9], runtime/ttyio.scm[1.8],
runtime/ttyio.scm[1.7]:
Implement FRESH-LINE operation for generic, file, and console ports.

* runtime/genio.scm[1.12], runtime/io.scm[14.57],
runtime/io.scm[14.56], runtime/io.scm[14.55], runtime/port.scm[1.13],
runtime/runtime.pkg[14.309], runtime/runtime.pkg[14.308],
runtime/runtime.pkg[14.307]:
Allow CLOSE-INPUT-PORT and CLOSE-OUTPUT-PORT to independently close
either side of an I/O port.

* 6001/picture.scm[1.29]:
Eliminate some randomness.

* runtime/fileio.scm[1.14], runtime/genio.scm[1.11],
runtime/output.scm[14.18], runtime/port.scm[1.12],
runtime/runtime.pkg[14.306], runtime/strott.scm[14.6]:
Eliminate WRITE-STRING output-port operation.

* edwin/winout.scm[1.11]:
Change output port to implement WRITE-SUBSTRING rather than
WRITE-STRING.

* runtime/fileio.scm[1.13], runtime/genio.scm[1.10],
runtime/runtime.pkg[14.305]:
Eliminate READ-CHARS input-port operation.

* edwin/process.scm[1.56]:
Eliminate use of READ-CHARS operation.

* runtime/fileio.scm[1.12], runtime/genio.scm[1.9],
runtime/runtime.pkg[14.304]:
Eliminate WRITE-CHARS operation on output ports.

1999-02-03 Chris Hanson <[email protected]>

* edwin/debug.scm[1.46], edwin/debug.scm[1.45]:
Fix fencepost error when printing bindings. Show complete environment
chain; previously omitted global environment. Eliminate gratuitous
use of EVAL.

1999-02-02 Chris Hanson <[email protected]>

* edwin/autold.scm[1.55]:
Guarantee that symbols are canonicalized when loading files for Edwin.

1999-02-01 Chris Hanson <[email protected]>

* edwin/os2.scm[1.46], edwin/unix.scm[1.94]:
Fix thinko.

* runtime/process.scm[1.24]:
Allow working directory to be a pathname.

* runtime/syncproc.scm[1.7]:
Run merge-pathnames on the working directory of a subprocess.

* edwin/make.scm[3.97], edwin/process.scm[1.55]:
Extensive changes to use the SYNCHRONOUS-SUBPROCESS support that is
now built in to the runtime system.

* edwin/edwin.ldr[1.64]:
Must load SYNCHRONOUS-SUBPROCESS support.

* edwin/diros2.scm[1.4], edwin/dirunx.scm[1.12], edwin/dirw32.scm[1.4],
edwin/os2.scm[1.45], edwin/rmail.scm[1.61], edwin/sendmail.scm[1.44],
edwin/unix.scm[1.93], edwin/vc.scm[1.31]:
Change calls to OS/FIND-PROGRAM so that they explicitly pass the
exec-path, which may be different from the default path.

* runtime/ntprm.scm[1.27], runtime/os2prm.scm[1.40],
runtime/unxprm.scm[1.53]:
Reverse optional arguments for OS/FIND-PROGRAM.

* edwin/dos.scm[1.49], edwin/os2.scm[1.44]:
Eliminate DOS/DEFAULT-SHELL-FILE-NAME and DOS/WINDOWS-TYPE.

* edwin/edwin.pkg[1.235]:
Remove PROCESS-ENVIRONMENT-BIND, which has been moved to runtime
system. Eliminate spurious binding of BUFFER-DEFAULT-DIRECTORY.

* edwin/dosfile.scm[1.26], edwin/unix.scm[1.92]:
Remove definitions that are now present in the runtime system.

* runtime/version.scm[14.178]:
Increment runtime version to account for subprocess changes.

* runtime/runtime.pkg[14.303]:
More subprocess changes.

* runtime/process.scm[1.23]:
Procedure PROCESS-ENVIRONMENT-BIND moved from Edwin to here.

* runtime/syncproc.scm[1.6]:
Eliminate CONDITION-TYPE:SUBPROCESS-EXITED. Add options to specify
buffer sizes.

1999-01-31 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.302], runtime/syncproc.scm[1.5],
runtime/syncproc.scm[1.4], runtime/syncproc.scm[1.3]:
Change name: RUN-SYNCHRONOUS-PROCESS to RUN-SYNCHRONOUS-SUBPROCESS.
Change calling convention of RUN-SYNCHRONOUS-SUBPROCESS and
RUN-SHELL-COMMAND to accept keyword arguments, and eliminate
MAKE-SUBPROCESS-CONTEXT.

* edwin/evlcom.scm[1.61]:
Fix bug: when evaluate-in-inferior-repl true, and there's no repl
buffer, an command requiring evaluation would fail.

* edwin/prompt.scm[1.182]:
Fix thinko.

1999-01-29 Chris Hanson <[email protected]>

* runtime/syncproc.scm[1.2]:
Fix thinko. Change definition of RUN-SYNCHRONOUS-PROCESS so that it
returns the exit code of the subprocess.

* runtime/ed-ffi.scm[1.19], runtime/ntprm.scm[1.26],
runtime/optiondb.scm[1.6], runtime/os2prm.scm[1.39],
runtime/runtime.pkg[14.301], runtime/unxprm.scm[1.52]:
Add support for running synchronous subprocesses outside of Edwin.

* edwin/pwedit.scm[1.4]:
Fix thinko.

* edwin/prompt.scm[1.181]:
Change prompt history yet again. Now the history is copied before
use, and the user's editing changes are remembered for each element in
the history. When the user exits the minibuffer, all of the changes
are discarded.

Also: eliminate HISTORY-DEFAULT option; HISTORY-INDEX now subsumes
that role.

* edwin/compile.scm[1.11]:
Eliminate use of HISTORY-DEFAULT prompt option.

* edwin/filcom.scm[1.201]:
Fix typo.

1999-01-28 Chris Hanson <[email protected]>

* edwin/prompt.scm[1.180]:
Fix thinko in history mechanism.

* edwin/prompt.scm[1.179]:
Fix typo.

* edwin/filcom.scm[1.200]:
Use new prompt history.

* edwin/compile.scm[1.10], edwin/compile.scm[1.9],
edwin/compile.scm[1.8], edwin/prompt.scm[1.178]:
History never sets prompt default except when explicitly instructed.

* edwin/basic.scm[1.132], edwin/compile.scm[1.7]:
Use new prompt-history mechanism.

* edwin/prompt.scm[1.177]:
Fix how defaults are derived from history.

* edwin/edwin.pkg[1.234], edwin/prompt.scm[1.176]:
Make prompt history mechanism convenient: histories are specified by
symbols, and tracked automatically by the prompting code.

* edwin/ring.scm[1.12]:
Change RING-LIST to copy the value that it returns.

* edwin/modefs.scm[1.155]:
Bind eval-expression to M-: for compatibility with Emacs 19.

* edwin/mousecom.scm[1.3]:
Add USUAL-INTEGRATIONS declaration.

* 6001/edextra.scm[1.28], 6001/floppy.scm[1.25]:
Change to match new prompting code in Edwin 3.96.

* edwin/bufcom.scm[1.106], edwin/compile.scm[1.6],
edwin/comred.scm[1.114], edwin/dired.scm[1.169],
edwin/edwin.pkg[1.233], edwin/evlcom.scm[1.60],
edwin/filcom.scm[1.199], edwin/kmacro.scm[1.42],
edwin/make.scm[3.96], edwin/print.scm[1.18], edwin/prompt.scm[1.175],
edwin/replaz.scm[1.80], edwin/rmail.scm[1.60], edwin/snr.scm[1.51],
edwin/tagutl.scm[1.57]:
Revamp of prompting code. New design supports keyword arguments to
most prompting procedures, to support options in an extensible way.
The new keyword options are used to implement a general history
mechanism, like that previously implemented by repeat-complex-command
(which is now implemented using the new mechanism).

This edit has made incompatible changes to the calling conventions of
the following procedures:

prompt-for-buffer-name
prompt-for-expression
prompt-for-pathname
prompt-for-pathname*
prompt-for-string
prompt-for-completed-string
prompt-for-string-table-name
prompt-for-string-table-value

* edwin/macros.scm[1.64]:
Don't quote description strings. Quoting precludes the use of
arbitrary expressions to compute the documentation.

1999-01-16 Chris Hanson <[email protected]>

* edwin/dosfile.scm[1.25], edwin/unix.scm[1.91]:
Fix bug from last change: don't check file header when writing
encrypted file, because the file might not exist.

1999-01-14 Chris Hanson <[email protected]>

* edwin/loadef.scm[1.37], edwin/pwedit.scm[1.3]:
Fix compiler warnings.

* edwin/decls.scm[1.63], edwin/ed-ffi.scm[1.46],
edwin/edwin.pkg[1.232], edwin/loadef.scm[1.36]:
Implement M-x view-password-file to allow a password to be looked up
in public without revealing other passwords in the file.

* edwin/pwedit.scm[1.2]:
Fix formatting error.

* edwin/modefs.scm[1.154]:
Fix binding: "home" key on PCs means beginning-of-line.

* edwin/dosfile.scm[1.24], edwin/unix.scm[1.90]:
Use new BLOWFISH-FILE? predicate to test .bf files to see if they are
encoded.

* runtime/blowfish.scm[1.6]:
Add procedure BLOWFISH-FILE?.

* runtime/blowfish.scm[1.5]:
Use more specific condition for signalling "non-blowfish" files. This
facilitates catching this error.

* edwin/dosfile.scm[1.23], edwin/fileio.scm[1.145],
edwin/unix.scm[1.89]:
Fix PATHNAME-DEFAULT-MODE so that application of auto-mode-alist
ignores any encoding suffixes.

1999-01-09 Chris Hanson <[email protected]>

* win32/wingdi.scm[1.2], win32/winnt.scm[1.2], win32/winuser.scm[1.2]:
Add copyright statement.

1999-01-03 Chris Hanson <[email protected]>

* microcode/dstack.h[1.9], microcode/error.c[1.6],
microcode/ptrvec.c[1.3], microcode/transact.c[1.3],
microcode/wind.c[1.6]:
Fix mis-attributed copyright statement. These files were written by
me but attributed to FSF when they should have been attributed to MIT.

* 6001/make.scm[15.30], compiler/base/make.scm[4.110],
cref/make.scm[1.18], edwin/make.scm[3.95],
microcode/version.h[11.161], runtime/version.scm[14.177],
sf/make.scm[4.34], sos/load.scm[1.6]:
Fix version.

1999-01-02 Chris Hanson <[email protected]>

* rcs/mklogs.scm[1.11]:
Change names of top-level /scheme directories.

* 6001/6001.cbf[1.7], 6001/6001.pkg[1.11], 6001/6001.sf[1.10],
6001/arith.scm[1.6], 6001/edextra.scm[1.27], 6001/floppy.scm[1.24],
6001/make.scm[15.29], 6001/nodefs.scm[1.11], 6001/pic-imag.scm[1.10],
6001/pic-ops.scm[1.5], 6001/pic-read.scm[1.5],
6001/pic-reco.scm[1.7], 6001/picture.scm[1.28],
compiler/back/asmmac.scm[1.8], compiler/back/asutl.scm[1.3],
compiler/back/bittop.scm[1.22], compiler/back/bitutl.scm[1.10],
compiler/back/insseq.scm[4.4], compiler/back/lapgn1.scm[4.18],
compiler/back/lapgn2.scm[1.21], compiler/back/lapgn3.scm[4.12],
compiler/back/linear.scm[4.17], compiler/back/mermap.scm[1.5],
compiler/back/regmap.scm[4.14], compiler/back/syerly.scm[1.11],
compiler/back/symtab.scm[1.47], compiler/back/syntax.scm[1.27],
compiler/base/asstop.scm[1.11], compiler/base/blocks.scm[4.14],
compiler/base/cfg1.scm[4.5], compiler/base/cfg2.scm[4.4],
compiler/base/cfg3.scm[4.5], compiler/base/constr.scm[1.3],
compiler/base/contin.scm[4.9], compiler/base/crsend.scm[1.10],
compiler/base/crstop.scm[1.13], compiler/base/ctypes.scm[4.16],
compiler/base/debug.scm[4.14], compiler/base/enumer.scm[4.4],
compiler/base/infnew.scm[4.12], compiler/base/lvalue.scm[4.21],
compiler/base/macros.scm[4.16], compiler/base/make.scm[4.109],
compiler/base/mvalue.scm[3.1], compiler/base/object.scm[4.9],
compiler/base/pmerly.scm[1.9], compiler/base/pmlook.scm[1.9],
compiler/base/pmpars.scm[1.4], compiler/base/proced.scm[4.20],
compiler/base/refctx.scm[1.3], compiler/base/rvalue.scm[4.7],
compiler/base/scode.scm[4.10], compiler/base/sets.scm[4.2],
compiler/base/subprb.scm[4.8], compiler/base/switch.scm[4.25],
compiler/base/toplev.scm[4.55], compiler/base/utils.scm[4.20],
compiler/etc/asm.scm[1.3], compiler/etc/comcmp.scm[1.5],
compiler/etc/comfiles.scm[1.6], compiler/etc/disload.scm[1.8],
compiler/etc/stackp.scm[1.7], compiler/etc/xcbfdir.scm[1.9],
compiler/fggen/canon.scm[1.16], compiler/fggen/declar.scm[1.6],
compiler/fggen/fggen.scm[4.32], compiler/fgopt/blktyp.scm[4.16],
compiler/fgopt/closan.scm[4.18], compiler/fgopt/conect.scm[4.5],
compiler/fgopt/contan.scm[4.10], compiler/fgopt/delint.scm[1.4],
compiler/fgopt/desenv.scm[4.4], compiler/fgopt/envopt.scm[1.8],
compiler/fgopt/folcon.scm[4.9], compiler/fgopt/offset.scm[4.9],
compiler/fgopt/operan.scm[4.8], compiler/fgopt/order.scm[4.16],
compiler/fgopt/outer.scm[4.6], compiler/fgopt/param.scm[1.4],
compiler/fgopt/reord.scm[1.2], compiler/fgopt/reteqv.scm[1.2],
compiler/fgopt/reuse.scm[1.8], compiler/fgopt/sideff.scm[1.9],
compiler/fgopt/simapp.scm[4.9], compiler/fgopt/simple.scm[4.7],
compiler/fgopt/subfre.scm[1.8], compiler/fgopt/varind.scm[1.5],
compiler/machines/C/compiler.cbf[1.3],
compiler/machines/C/compiler.pkg[1.10],
compiler/machines/C/compiler.sf[1.6],
compiler/machines/C/cout.scm[1.21],
compiler/machines/C/ctop.scm[1.13],
compiler/machines/C/cutl.scm[1.2],
compiler/machines/C/decls.scm[1.4],
compiler/machines/C/lapgen.scm[1.12],
compiler/machines/C/machin.scm[1.8],
compiler/machines/C/make.scm[1.3],
compiler/machines/C/rgspcm.scm[1.3],
compiler/machines/C/rules1.scm[1.8],
compiler/machines/C/rules2.scm[1.3],
compiler/machines/C/rules3.scm[1.9],
compiler/machines/C/rules4.scm[1.2],
compiler/machines/C/rulfix.scm[1.3],
compiler/machines/C/rulflo.scm[1.5],
compiler/machines/C/rulrew.scm[1.4],
compiler/machines/alpha/assmd.scm[1.2],
compiler/machines/alpha/coerce.scm[1.3],
compiler/machines/alpha/compiler.cbf[1.3],
compiler/machines/alpha/compiler.pkg[1.13],
compiler/machines/alpha/compiler.sf[1.6],
compiler/machines/alpha/dassm1.scm[1.2],
compiler/machines/alpha/dassm2.scm[1.2],
compiler/machines/alpha/dassm3.scm[1.2],
compiler/machines/alpha/decls.scm[1.6],
compiler/machines/alpha/inerly.scm[1.2],
compiler/machines/alpha/insmac.scm[1.2],
compiler/machines/alpha/instr1.scm[1.4],
compiler/machines/alpha/instr2.scm[1.2],
compiler/machines/alpha/instr3.scm[1.2],
compiler/machines/alpha/lapgen.scm[1.6],
compiler/machines/alpha/lapopt.scm[1.2],
compiler/machines/alpha/machin.scm[1.8],
compiler/machines/alpha/make.scm[1.4],
compiler/machines/alpha/rgspcm.scm[1.2],
compiler/machines/alpha/rules1.scm[1.3],
compiler/machines/alpha/rules2.scm[1.2],
compiler/machines/alpha/rules3.scm[1.7],
compiler/machines/alpha/rules4.scm[1.3],
compiler/machines/alpha/rulfix.scm[1.4],
compiler/machines/alpha/rulflo.scm[1.3],
compiler/machines/alpha/rulrew.scm[1.3],
compiler/machines/bobcat/assmd.scm[1.37],
compiler/machines/bobcat/coerce.scm[1.11],
compiler/machines/bobcat/compiler.cbf[1.3],
compiler/machines/bobcat/compiler.pkg[1.50],
compiler/machines/bobcat/compiler.sf[1.18],
compiler/machines/bobcat/dassm1.scm[4.19],
compiler/machines/bobcat/dassm2.scm[4.23],
compiler/machines/bobcat/dassm3.scm[4.9],
compiler/machines/bobcat/decls.scm[4.37],
compiler/machines/bobcat/flinstr1.scm[1.2],
compiler/machines/bobcat/flinstr2.scm[1.2],
compiler/machines/bobcat/inerly.scm[1.8],
compiler/machines/bobcat/insmac.scm[1.127],
compiler/machines/bobcat/instr1.scm[1.68],
compiler/machines/bobcat/instr2.scm[1.19],
compiler/machines/bobcat/instr3.scm[1.18],
compiler/machines/bobcat/instr4.scm[1.4],
compiler/machines/bobcat/insutl.scm[1.9],
compiler/machines/bobcat/lapgen.scm[4.51],
compiler/machines/bobcat/lapopt.scm[1.2],
compiler/machines/bobcat/machin.scm[4.32],
compiler/machines/bobcat/make.scm-68020[4.89],
compiler/machines/bobcat/make.scm-68040[4.90],
compiler/machines/bobcat/mc68ktgl.scm[1.3],
compiler/machines/bobcat/rgspcm.scm[4.3],
compiler/machines/bobcat/rules1.scm[4.39],
compiler/machines/bobcat/rules2.scm[4.15],
compiler/machines/bobcat/rules3.scm[4.41],
compiler/machines/bobcat/rules4.scm[4.15],
compiler/machines/bobcat/rulrew.scm[1.7],
compiler/machines/i386/assmd.scm[1.3],
compiler/machines/i386/coerce.scm[1.3],
compiler/machines/i386/compiler.cbf[1.4],
compiler/machines/i386/compiler.pkg[1.24],
compiler/machines/i386/compiler.sf[1.9],
compiler/machines/i386/dassm1.scm[1.9],
compiler/machines/i386/dassm2.scm[1.9],
compiler/machines/i386/dassm3.scm[1.6],
compiler/machines/i386/decls.scm[1.8],
compiler/machines/i386/inerly.scm[1.3],
compiler/machines/i386/insmac.scm[1.11],
compiler/machines/i386/instr1.scm[1.11],
compiler/machines/i386/instr2.scm[1.6],
compiler/machines/i386/instrf.scm[1.14],
compiler/machines/i386/insutl.scm[1.11],
compiler/machines/i386/lapgen.scm[1.27],
compiler/machines/i386/lapopt.scm[1.6],
compiler/machines/i386/machin.scm[1.19],
compiler/machines/i386/make.scm[1.6],
compiler/machines/i386/pc-make.scm[1.2],
compiler/machines/i386/rgspcm.scm[1.4],
compiler/machines/i386/rules1.scm[1.19],
compiler/machines/i386/rules2.scm[1.9],
compiler/machines/i386/rules3.scm[1.34],
compiler/machines/i386/rules4.scm[1.8],
compiler/machines/i386/rulfix.scm[1.31],
compiler/machines/i386/rulflo.scm[1.22],
compiler/machines/i386/rulrew.scm[1.14],
compiler/machines/mips/assmd.scm[1.3],
compiler/machines/mips/coerce.scm[1.2],
compiler/machines/mips/compiler.cbf[1.3],
compiler/machines/mips/compiler.pkg[1.20],
compiler/machines/mips/compiler.sf-big[1.8],
compiler/machines/mips/compiler.sf-little[1.8],
compiler/machines/mips/dassm1.scm[1.4],
compiler/machines/mips/dassm2.scm[1.5],
compiler/machines/mips/dassm3.scm[1.4],
compiler/machines/mips/decls.scm[1.10],
compiler/machines/mips/inerly.scm[1.2],
compiler/machines/mips/insmac.scm[1.3],
compiler/machines/mips/instr1.scm[1.7],
compiler/machines/mips/instr2a.scm[1.5],
compiler/machines/mips/instr2b.scm[1.4],
compiler/machines/mips/instr3.scm[1.3],
compiler/machines/mips/lapgen.scm[1.16],
compiler/machines/mips/lapopt.scm[1.2],
compiler/machines/mips/machin.scm[1.15],
compiler/machines/mips/make.scm-big[4.89],
compiler/machines/mips/make.scm-little[4.89],
compiler/machines/mips/mips.scm[1.2],
compiler/machines/mips/rgspcm.scm[1.2],
compiler/machines/mips/rules1.scm[1.7],
compiler/machines/mips/rules2.scm[1.3],
compiler/machines/mips/rules3.scm[1.18],
compiler/machines/mips/rules4.scm[1.4],
compiler/machines/mips/rulfix.scm[1.11],
compiler/machines/mips/rulflo.scm[1.8],
compiler/machines/mips/rulrew.scm[1.7],
compiler/machines/sparc/assmd.scm[1.2],
compiler/machines/sparc/cf.h-sparc[1.2],
compiler/machines/sparc/cmpaux-sparc.m4[1.2],
compiler/machines/sparc/cmpint-sparc.h[1.2],
compiler/machines/sparc/coerce.scm[1.2],
compiler/machines/sparc/decls.scm[1.4],
compiler/machines/sparc/inerly.scm[1.2],
compiler/machines/sparc/insmac.scm[1.2],
compiler/machines/sparc/instr1.scm[1.2],
compiler/machines/sparc/instr2a.scm[1.2],
compiler/machines/sparc/instr2b.scm[1.2],
compiler/machines/sparc/instr3.scm[1.2],
compiler/machines/sparc/lapgen.scm[1.3],
compiler/machines/sparc/lapopt.scm[1.2],
compiler/machines/sparc/machin.scm[1.3],
compiler/machines/sparc/make.scm[1.3],
compiler/machines/sparc/rgspcm.scm[1.2],
compiler/machines/sparc/rules1.scm[1.2],
compiler/machines/sparc/rules2.scm[1.2],
compiler/machines/sparc/rules3.scm[1.2],
compiler/machines/sparc/rules4.scm[1.2],
compiler/machines/sparc/rulfix.scm[1.2],
compiler/machines/sparc/rulflo.scm[1.2],
compiler/machines/sparc/rulrew.scm[1.2],
compiler/machines/spectrum/assmd.scm[1.31],
compiler/machines/spectrum/coerce.scm[1.6],
compiler/machines/spectrum/compiler.cbf[1.3],
compiler/machines/spectrum/compiler.pkg[1.50],
compiler/machines/spectrum/compiler.sf[1.18],
compiler/machines/spectrum/dassm1.scm[4.19],
compiler/machines/spectrum/dassm2.scm[4.21],
compiler/machines/spectrum/dassm3.scm[1.3],
compiler/machines/spectrum/decls.scm[4.35],
compiler/machines/spectrum/inerly.scm[1.2],
compiler/machines/spectrum/insmac.scm[1.3],
compiler/machines/spectrum/instr1.scm[1.4],
compiler/machines/spectrum/instr2.scm[1.7],
compiler/machines/spectrum/instr3.scm[1.3],
compiler/machines/spectrum/lapgen.scm[4.48],
compiler/machines/spectrum/lapopt.scm[1.15],
compiler/machines/spectrum/machin.scm[4.30],
compiler/machines/spectrum/make.scm[4.90],
compiler/machines/spectrum/rgspcm.scm[4.4],
compiler/machines/spectrum/rules1.scm[4.36],
compiler/machines/spectrum/rules2.scm[4.15],
compiler/machines/spectrum/rules3.scm[4.42],
compiler/machines/spectrum/rules4.scm[4.13],
compiler/machines/spectrum/rulfix.scm[4.48],
compiler/machines/spectrum/rulflo.scm[4.40],
compiler/machines/spectrum/rulrew.scm[1.13],
compiler/machines/vax/assmd.scm[4.7],
compiler/machines/vax/coerce.scm[1.5],
compiler/machines/vax/compiler.cbf[1.6],
compiler/machines/vax/compiler.pkg[1.22],
compiler/machines/vax/compiler.sf[1.9],
compiler/machines/vax/dassm1.scm[4.7],
compiler/machines/vax/dassm2.scm[4.13],
compiler/machines/vax/dassm3.scm[1.4],
compiler/machines/vax/decls.scm[4.13],
compiler/machines/vax/dsyn.scm[1.8],
compiler/machines/vax/inerly.scm[1.7],
compiler/machines/vax/insmac.scm[1.13],
compiler/machines/vax/instr1.scm[1.7],
compiler/machines/vax/instr2.scm[1.6],
compiler/machines/vax/instr3.scm[1.10],
compiler/machines/vax/insutl.scm[4.4],
compiler/machines/vax/lapgen.scm[4.16],
compiler/machines/vax/lapopt.scm[1.2],
compiler/machines/vax/machin.scm[4.13],
compiler/machines/vax/make.scm[4.89],
compiler/machines/vax/rgspcm.scm[4.3],
compiler/machines/vax/rules1.scm[4.8],
compiler/machines/vax/rules2.scm[4.5],
compiler/machines/vax/rules3.scm[4.12],
compiler/machines/vax/rules4.scm[4.5],
compiler/machines/vax/rulfix.scm[1.6],
compiler/machines/vax/rulrew.scm[1.3],
compiler/rtlbase/regset.scm[1.4], compiler/rtlbase/rgraph.scm[4.8],
compiler/rtlbase/rtlcfg.scm[4.9], compiler/rtlbase/rtlcon.scm[4.30],
compiler/rtlbase/rtlexp.scm[4.20], compiler/rtlbase/rtline.scm[4.11],
compiler/rtlbase/rtlobj.scm[4.12], compiler/rtlbase/rtlreg.scm[4.6],
compiler/rtlbase/rtlty1.scm[4.23], compiler/rtlbase/rtlty2.scm[4.13],
compiler/rtlbase/valclass.scm[1.3], compiler/rtlgen/fndblk.scm[4.12],
compiler/rtlgen/fndvar.scm[1.7], compiler/rtlgen/opncod.scm[4.68],
compiler/rtlgen/rgcomb.scm[4.21], compiler/rtlgen/rgproc.scm[4.14],
compiler/rtlgen/rgretn.scm[4.14], compiler/rtlgen/rgrval.scm[4.23],
compiler/rtlgen/rgstmt.scm[4.17], compiler/rtlgen/rtlgen.scm[4.30],
compiler/rtlopt/ralloc.scm[1.18], compiler/rtlopt/rcompr.scm[1.15],
compiler/rtlopt/rcse1.scm[4.24], compiler/rtlopt/rcse2.scm[4.14],
compiler/rtlopt/rcseep.scm[4.7], compiler/rtlopt/rcseht.scm[4.13],
compiler/rtlopt/rcserq.scm[4.6], compiler/rtlopt/rcsesr.scm[4.4],
compiler/rtlopt/rdebug.scm[1.3], compiler/rtlopt/rdflow.scm[1.3],
compiler/rtlopt/rerite.scm[1.4], compiler/rtlopt/rinvex.scm[1.9],
compiler/rtlopt/rlife.scm[1.61], compiler/rtlopt/rtlcsm.scm[1.2],
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edwin/bufwfs.scm[1.20], edwin/bufwin.scm[1.306],
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edwin/c-mode.scm[1.55], edwin/calias.scm[1.18],
edwin/cinden.scm[1.19], edwin/class.scm[1.72], edwin/clscon.scm[1.7],
edwin/clsmac.scm[1.3], edwin/comatch.scm[1.4], edwin/comhst.scm[1.6],
edwin/comint.scm[1.28], edwin/comman.scm[1.80],
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edwin/dirunx.scm[1.11], edwin/dirw32.scm[1.3],
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edwin/doscom.scm[1.3], edwin/dosfile.scm[1.22],
edwin/dosproc.scm[1.4], edwin/dosshell.scm[1.4],
edwin/ed-ffi.scm[1.45], edwin/editor.scm[1.244],
edwin/edtfrm.scm[1.90], edwin/edtstr.scm[1.23], edwin/edwin.cbf[1.4],
edwin/edwin.ldr[1.63], edwin/edwin.pkg[1.231], edwin/edwin.sf[1.20],
edwin/evlcom.scm[1.59], edwin/eystep.scm[1.6],
edwin/filcom.scm[1.198], edwin/fileio.scm[1.144],
edwin/fill.scm[1.60], edwin/grpops.scm[1.24],
edwin/hlpcom.scm[1.109], edwin/image.scm[1.134],
edwin/info.scm[1.133], edwin/input.scm[1.100],
edwin/intmod.scm[1.95], edwin/iserch.scm[1.21],
edwin/javamode.scm[1.3], edwin/key-w32.scm[1.3],
edwin/key-x11.scm[1.5], edwin/keymap.scm[1.12],
edwin/keyparse.scm[1.3], edwin/kilcom.scm[1.71],
edwin/kmacro.scm[1.41], edwin/lincom.scm[1.123],
edwin/linden.scm[1.126], edwin/loadef.scm[1.35],
edwin/lspcom.scm[1.158], edwin/macros.scm[1.63],
edwin/make.scm[3.94], edwin/malias.scm[1.4], edwin/manual.scm[1.15],
edwin/midas.scm[1.18], edwin/modefs.scm[1.153],
edwin/modes.scm[1.28], edwin/modlin.scm[1.20],
edwin/modwin.scm[1.40], edwin/motcom.scm[1.47],
edwin/motion.scm[1.88], edwin/mousecom.scm[1.2],
edwin/nntp.scm[1.22], edwin/notify.scm[1.18], edwin/nvector.scm[1.8],
edwin/occur.scm[1.4], edwin/os2.scm[1.43], edwin/os2com.scm[1.5],
edwin/os2term.scm[1.21], edwin/outline.scm[1.8],
edwin/pasmod.scm[1.47], edwin/paths.scm[1.14], edwin/print.scm[1.17],
edwin/process.scm[1.54], edwin/prompt.scm[1.174],
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edwin/regcom.scm[1.22], edwin/regexp.scm[1.71],
edwin/regops.scm[1.87], edwin/rename.scm[1.7],
edwin/replaz.scm[1.79], edwin/ring.scm[1.11], edwin/rmail.scm[1.59],
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edwin/schmod.scm[1.44], edwin/scrcom.scm[1.6],
edwin/screen.scm[1.116], edwin/search.scm[1.150],
edwin/sendmail.scm[1.43], edwin/sercom.scm[1.64],
edwin/shell.scm[1.19], edwin/simple.scm[1.48], edwin/snr.scm[1.50],
edwin/sort.scm[1.7], edwin/strpad.scm[1.8], edwin/strtab.scm[1.46],
edwin/struct.scm[1.91], edwin/syntax.scm[1.83],
edwin/tagutl.scm[1.56], edwin/techinfo.scm[1.5],
edwin/telnet.scm[1.14], edwin/termcap.scm[1.7],
edwin/texcom.scm[1.39], edwin/things.scm[1.85],
edwin/tparse.scm[1.71], edwin/tterm.scm[1.28],
edwin/tximod.scm[1.21], edwin/txtprp.scm[1.17], edwin/undo.scm[1.58],
edwin/unix.scm[1.88], edwin/utils.scm[1.45], edwin/utlwin.scm[1.59],
edwin/vc.scm[1.30], edwin/verilog.scm[1.5], edwin/vhdl.scm[1.5],
edwin/webster.scm[1.3], edwin/win32.scm[1.9],
edwin/win32com.scm[1.8], edwin/wincom.scm[1.122],
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edwin/winren.scm[1.5], edwin/xcom.scm[1.16], edwin/xform.scm[1.9],
edwin/xmodef.scm[1.3], edwin/xterm.scm[1.56],
microcode/Attic/config.h[9.100], microcode/Attic/dosasutl.asm[1.4],
microcode/Attic/dosconio.c[1.13], microcode/Attic/dosenv.c[1.10],
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microcode/Attic/dosfg.c[1.4], microcode/Attic/dosfile.c[1.4],
microcode/Attic/dosfs.c[1.6], microcode/Attic/dosi10.asm[1.3],
microcode/Attic/dosinsn.h[1.3], microcode/Attic/dosint10.c[1.9],
microcode/Attic/dosint10.h[1.3], microcode/Attic/dosio.c[1.9],
microcode/Attic/dosio.h[1.5], microcode/Attic/doskbd.c[1.13],
microcode/Attic/doskbd.h[1.3], microcode/Attic/doskbutl.asm[1.7],
microcode/Attic/dosscan.h[1.5], microcode/Attic/dosselec.h[1.3],
microcode/Attic/dossig.c[1.17], microcode/Attic/dossys.c[1.5],
microcode/Attic/dossys.h[1.3], microcode/Attic/dosterm.h[1.3],
microcode/Attic/dostop.c[1.12], microcode/Attic/dostop.h[1.3],
microcode/Attic/dostrap.c[1.7], microcode/Attic/dostrap.h[1.4],
microcode/Attic/dostterm.c[1.3], microcode/Attic/dostty.c[1.4],
microcode/Attic/dosutil.c[1.3], microcode/Attic/dosutil.h[1.3],
microcode/Attic/dosx32.c[1.7], microcode/Attic/dosxcutl.asm[1.8],
microcode/Attic/msdos.h[1.7], microcode/Attic/oscond.h[1.26],
microcode/Attic/posixtyp.h[1.16], microcode/Attic/prdosenv.c[1.11],
microcode/Attic/prdosfs.c[1.5], microcode/array.c[9.46],
microcode/array.h[9.36], microcode/artutl.c[1.16],
microcode/avltree.c[1.4], microcode/avltree.h[1.2],
microcode/bchdmp.c[9.83], microcode/bchdrn.c[1.7],
microcode/bchdrn.h[1.9], microcode/bchgcc.h[9.59],
microcode/bchgcl.c[9.50], microcode/bchmmg.c[9.93],
microcode/bchpur.c[9.67], microcode/bchutl.c[1.8],
microcode/bignmint.h[1.6], microcode/bignum.c[9.47],
microcode/bignum.h[9.31], microcode/bigprm.c[1.6],
microcode/bintopsb.c[9.69], microcode/bitstr.c[9.61],
microcode/bitstr.h[1.9], microcode/bkpt.c[9.30],
microcode/bkpt.h[9.32], microcode/bltdef.h[1.4],
microcode/boot.c[9.100], microcode/breakup.c[9.25],
microcode/char.c[9.33], microcode/cmpauxmd/asmcvt.c[1.2],
microcode/cmpauxmd/c.c[1.12], microcode/cmpauxmd/hppa.m4[1.38],
microcode/cmpauxmd/i386.m4[1.49], microcode/cmpauxmd/mc68k.m4[1.26],
microcode/cmpauxmd/mips.m4[1.15], microcode/cmpauxmd/vax.m4[1.3],
microcode/cmpgc.h[1.30], microcode/cmpint.c[1.91],
microcode/cmpint.h[10.6], microcode/cmpintmd/c.h[1.7],
microcode/cmpintmd/hppa.h[1.51], microcode/cmpintmd/i386.h[1.31],
microcode/cmpintmd/mc68k.h[1.36], microcode/cmpintmd/mips.h[1.23],
microcode/cmpintmd/vax.h[1.9], microcode/cmptype.h[1.2],
microcode/comlin.c[1.9], microcode/comlin.h[1.7],
microcode/compinit.c[1.4], microcode/comutl.c[1.31],
microcode/const.h[9.45], microcode/copyrigh.c[1.3],
microcode/critsec.h[1.4], microcode/daemon.c[9.31],
microcode/debug.c[9.50], microcode/default.h[9.43],
microcode/dfloat.c[1.6], microcode/dmpwrld.c[9.39],
microcode/dosutl/Attic/bch-prm.lst[1.7],
microcode/dosutl/Attic/makefile[1.13],
microcode/dosutl/Attic/scm-prm.lst[1.7], microcode/dump.c[9.40],
microcode/edwin.h[1.9], microcode/errors.h[9.42],
microcode/extern.c[9.37], microcode/extern.h[9.56],
microcode/fasdump.c[9.63], microcode/fasl.h[9.38],
microcode/fasload.c[9.86], microcode/fft.c[9.33],
microcode/fhooks.c[9.34], microcode/findprim.c[9.52],
microcode/fixnum.c[9.44], microcode/fixobj.h[9.38],
microcode/flonum.c[9.43], microcode/foreign.c[1.2],
microcode/foreign.h[1.2], microcode/future.c[9.29],
microcode/futures.h[9.29], microcode/gc.h[9.34],
microcode/gccode.h[9.56], microcode/gcloop.c[9.46],
microcode/gctype.c[9.34], microcode/generic.c[9.39],
microcode/gpio.c[1.11], microcode/history.h[9.29],
microcode/hooks.c[9.58], microcode/hppacach.c[1.12],
microcode/hppacach.h[1.5], microcode/hppanwca.c[1.4],
microcode/hunk.c[9.29], microcode/image.c[9.34],
microcode/image.h[9.25], microcode/intercom.c[9.31],
microcode/intern.c[9.56], microcode/interp.c[9.89],
microcode/interp.h[9.41], microcode/intext.c[1.5],
microcode/intext.h[1.5], microcode/intprm.c[1.9],
microcode/intrpt.h[1.20], microcode/liarc.h[1.14],
microcode/list.c[9.32], microcode/load.c[9.39],
microcode/locks.h[9.26], microcode/lookprm.c[1.11],
microcode/lookup.c[9.57], microcode/lookup.h[9.51],
microcode/m/Attic/apoll68k.h[1.4], microcode/m/Attic/hcx.h[1.3],
microcode/m/Attic/hp9k300.h[1.13], microcode/m/Attic/hp9k400.h[1.9],
microcode/m/Attic/hp9k800.h[1.14], microcode/m/Attic/i386.h[1.6],
microcode/m/Attic/ibm032.h[1.3], microcode/m/Attic/mips.h[1.10],
microcode/m/Attic/next.h[1.6], microcode/m/Attic/rs6000.h[1.3],
microcode/m/Attic/sun3.h[1.7], microcode/m/Attic/sun4.h[1.4],
microcode/m/Attic/umax.h[1.3], microcode/m/Attic/vax.h[1.6],
microcode/memmag.c[9.65], microcode/memmag.h[1.7],
microcode/missing.c[9.32], microcode/mul.c[9.34],
microcode/nt.h[1.8], microcode/ntapi.h[1.9],
microcode/ntasutl.asm[1.6], microcode/ntenv.c[1.17],
microcode/ntfile.c[1.13], microcode/ntfs.c[1.24],
microcode/ntfs.h[1.4], microcode/ntgui.c[1.25],
microcode/ntgui.h[1.8], microcode/ntio.c[1.22],
microcode/ntio.h[1.11], microcode/ntproc.c[1.8],
microcode/ntproc.h[1.2], microcode/ntscmlib.h[1.9],
microcode/ntscreen.c[1.36], microcode/ntscreen.h[1.17],
microcode/ntsig.c[1.21], microcode/ntsock.c[1.5],
microcode/ntsys.c[1.9], microcode/ntsys.h[1.8],
microcode/ntterm.h[1.4], microcode/nttop.c[1.29],
microcode/nttop.h[1.4], microcode/nttrap.c[1.17],
microcode/nttrap.h[1.5], microcode/nttterm.c[1.3],
microcode/nttty.c[1.8], microcode/ntutl/bch-p-nt.lst[1.6],
microcode/ntutl/makefile[1.23], microcode/ntutl/makefile.wcc[1.12],
microcode/ntutl/scheme16.c[1.11], microcode/ntutl/scheme31.c[1.10],
microcode/ntutl/scheme32.c[1.17], microcode/ntutl/scm-p-nt.lst[1.6],
microcode/object.h[9.49], microcode/option.c[1.48],
microcode/option.h[1.12], microcode/os.h[1.6], microcode/os2.c[1.8],
microcode/os2.h[1.6], microcode/os2api.h[1.11],
microcode/os2conio.c[1.10], microcode/os2cthrd.c[1.10],
microcode/os2cthrd.h[1.7], microcode/os2ctty.c[1.4],
microcode/os2ctty.h[1.2], microcode/os2env.c[1.11],
microcode/os2file.c[1.3], microcode/os2fs.c[1.10],
microcode/os2io.c[1.8], microcode/os2io.h[1.4],
microcode/os2msg.c[1.13], microcode/os2msg.h[1.15],
microcode/os2pipe.c[1.8], microcode/os2pm.c[1.32],
microcode/os2pm.h[1.13], microcode/os2pm.scm[1.8],
microcode/os2pmcon.c[1.24], microcode/os2pmcon.h[1.4],
microcode/os2pmcon.rc[1.5], microcode/os2proc.c[1.6],
microcode/os2proc.h[1.2], microcode/os2sock.c[1.9],
microcode/os2term.c[1.3], microcode/os2thrd.c[1.6],
microcode/os2thrd.h[1.4], microcode/os2top.c[1.19],
microcode/os2tty.c[1.2], microcode/os2utl/makefile[1.14],
microcode/os2utl/makefile.cmn[1.11],
microcode/os2utl/makefile.emx[1.8],
microcode/os2utl/makefile.gcc[1.6],
microcode/os2utl/makefile.vac[1.6],
microcode/os2utl/makefile.wcc[1.7], microcode/os2xcpt.c[1.7],
microcode/osctty.h[1.4], microcode/osenv.h[1.8],
microcode/osfile.h[1.3], microcode/osfs.h[1.7],
microcode/osio.h[1.14], microcode/osproc.h[1.10],
microcode/ospty.h[1.4], microcode/osscheme.c[1.10],
microcode/osscheme.h[1.10], microcode/ossig.h[1.4],
microcode/osterm.h[1.11], microcode/ostop.h[1.5],
microcode/ostty.c[1.4], microcode/ostty.h[1.5],
microcode/outf.c[1.11], microcode/outf.h[1.4],
microcode/ppband.c[9.49], microcode/prbfish.c[1.4],
microcode/prename.h[1.9], microcode/prgdbm.c[1.3],
microcode/prim.c[9.39], microcode/prim.h[9.45],
microcode/prims.h[9.46], microcode/primutl.c[9.71],
microcode/prmcon.c[1.3], microcode/prmcon.h[1.3],
microcode/prmd5.c[1.4], microcode/prntenv.c[1.8],
microcode/prntfs.c[1.15], microcode/prntio.c[1.10],
microcode/pros2fs.c[1.17], microcode/pros2io.c[1.8],
microcode/pros2pm.c[1.21], microcode/prosenv.c[1.15],
microcode/prosfile.c[1.9], microcode/prosfs.c[1.13],
microcode/prosio.c[1.17], microcode/prosproc.c[1.18],
microcode/prospty.c[1.4], microcode/prosterm.c[1.16],
microcode/prostty.c[1.7], microcode/pruxdld.c[1.12],
microcode/pruxenv.c[1.18], microcode/pruxfs.c[9.55],
microcode/pruxio.c[1.7], microcode/pruxsock.c[1.16],
microcode/psbmap.h[9.43], microcode/psbtobin.c[9.57],
microcode/purify.c[9.58], microcode/purutl.c[9.49],
microcode/regex.c[1.19], microcode/regex.h[1.7],
microcode/returns.h[9.42], microcode/rgxprim.c[1.13],
microcode/s/Attic/386bsd.h[1.3], microcode/s/Attic/aix.h[1.3],
microcode/s/Attic/bsd4-2.h[1.8], microcode/s/Attic/bsd4-3.h[1.6],
microcode/s/Attic/hpux.h[1.12], microcode/s/Attic/irix4.h[1.5],
microcode/s/Attic/irix6.h[1.2], microcode/s/Attic/linux.h[1.17],
microcode/s/Attic/mach4-3.h[1.4], microcode/s/Attic/newsos5.h[1.5],
microcode/s/Attic/nextos.h[1.7], microcode/s/Attic/sunos3.h[1.5],
microcode/s/Attic/sunos4.h[1.8], microcode/s/Attic/sysv3.h[1.5],
microcode/s/Attic/sysv4.h[1.4], microcode/s/Attic/ultrix.h[1.16],
microcode/s/Attic/umax.h[1.6], microcode/sample.c[9.26],
microcode/scheme.h[9.38], microcode/scode.h[9.26],
microcode/sdata.h[9.34], microcode/sgraph.h[1.7],
microcode/sgraph_a.c[1.16], microcode/sgx.c[1.9],
microcode/sgx11.c[1.4], microcode/stack.h[9.38],
microcode/starbase.c[1.7], microcode/starbasx.c[1.6],
microcode/step.c[9.34], microcode/storage.c[9.56],
microcode/string.c[9.38], microcode/syntax.c[1.24],
microcode/syntax.h[1.10], microcode/syscall.h[1.11],
microcode/sysprim.c[9.46], microcode/term.c[1.14],
microcode/trap.h[9.44], microcode/tterm.c[1.6],
microcode/types.h[9.37], microcode/unxutl/Attic/cf-dist.h[1.23],
microcode/unxutl/Attic/ymkfile[1.94], microcode/usrdef.h[9.43],
microcode/utabmd.scm[9.77], microcode/utils.c[9.74],
microcode/ux.c[1.17], microcode/ux.h[1.71], microcode/uxctty.c[1.13],
microcode/uxenv.c[1.17], microcode/uxfile.c[1.9],
microcode/uxfs.c[1.17], microcode/uxio.c[1.43],
microcode/uxio.h[1.5], microcode/uxproc.c[1.23],
microcode/uxproc.h[1.6], microcode/uxselect.h[1.6],
microcode/uxsig.c[1.33], microcode/uxsig.h[1.5],
microcode/uxsock.c[1.18], microcode/uxsock.h[1.8],
microcode/uxterm.c[1.26], microcode/uxterm.h[1.5],
microcode/uxtop.c[1.21], microcode/uxtop.h[1.3],
microcode/uxtrap.c[1.28], microcode/uxtrap.h[1.28],
microcode/uxtty.c[1.10], microcode/uxutil.c[1.6],
microcode/uxutil.h[1.3], microcode/uxyp.c[1.3],
microcode/vector.c[9.39], microcode/version.h[11.160],
microcode/wabbit.c[1.7], microcode/winder.h[9.26],
microcode/wsize.c[9.34], microcode/x11.h[1.16],
microcode/x11base.c[1.73], microcode/x11color.c[1.5],
microcode/x11graph.c[1.41], microcode/x11term.c[1.25],
microcode/xdebug.c[9.33], microcode/zones.h[9.26],
pcsample/load.scm[1.5], pcsample/pcs.cbf[1.3], pcsample/pcs.pkg[1.3],
pcsample/pcs.sf[1.2], pcsample/pcsample.c[1.6],
pcsample/pcsample.scm[1.3], pcsample/pcsboot.scm[1.2],
pcsample/pcscobl.c[1.2], pcsample/pcscobl.scm[1.2],
pcsample/pcsdisp.scm[1.2], pcsample/pcsdld.c[1.5],
pcsample/pcsintrp.scm[1.2], pcsample/pcsiproc.c[1.2],
pcsample/pcsiproc.scm[1.2], pcsample/pribinut.scm[1.2],
rcs/Attic/make.scm[1.4], rcs/Attic/rcs.sf[1.8], rcs/format.scm[1.3],
rcs/logmer.scm[1.16], rcs/mklogs.scm[1.10], rcs/nparse.scm[1.2],
rcs/object.scm[1.3], rcs/rcs.pkg[1.7], runtime/Attic/illdef.scm[1.4],
runtime/Attic/macros.scm[1.3], runtime/Attic/syntab.scm[14.5],
runtime/Attic/syntax.scm[14.31], runtime/advice.scm[14.15],
runtime/apply.scm[1.2], runtime/apropos.scm[1.3],
runtime/arith.scm[1.45], runtime/bitstr.scm[14.3],
runtime/blowfish.scm[1.4], runtime/boole.scm[14.3],
runtime/boot.scm[14.12], runtime/char.scm[14.10],
runtime/chrset.scm[14.8], runtime/codwlk.scm[14.3],
runtime/conpar.scm[14.36], runtime/contin.scm[14.8],
runtime/cpoint.scm[14.5], runtime/cpress.scm[1.10],
runtime/datime.scm[14.17], runtime/dbgcmd.scm[14.16],
runtime/dbgutl.scm[14.17], runtime/debug.scm[14.39],
runtime/defstr.scm[14.32], runtime/dosdir.scm[1.7],
runtime/dosprm.scm[1.41], runtime/dosproc.scm[1.2],
runtime/dospth.scm[1.39], runtime/dragon4.scm[1.14],
runtime/ed-ffi.scm[1.18], runtime/emacs.scm[14.23],
runtime/equals.scm[14.8], runtime/error.scm[14.49],
runtime/events.scm[14.4], runtime/fileio.scm[1.11],
runtime/fixart.scm[1.3], runtime/format.scm[14.6],
runtime/framex.scm[14.19], runtime/gc.scm[14.16],
runtime/gcdemn.scm[14.8], runtime/gcnote.scm[14.12],
runtime/gcstat.scm[14.6], runtime/gdatab.scm[14.6],
runtime/gdbm.scm[1.2], runtime/gencache.scm[1.2],
runtime/geneqht.scm[1.2], runtime/generic.scm[1.2],
runtime/genio.scm[1.8], runtime/genmult.scm[1.2],
runtime/gensym.scm[14.5], runtime/gentag.scm[1.2],
runtime/global.scm[14.51], runtime/graphics.scm[1.17],
runtime/hash.scm[14.6], runtime/hashtb.scm[1.23],
runtime/histry.scm[14.6], runtime/infstr.scm[1.9],
runtime/infutl.scm[1.60], runtime/input.scm[14.19],
runtime/intrpt.scm[14.22], runtime/io.scm[14.54],
runtime/krypt.scm[1.8], runtime/kryptdum.scm[1.2],
runtime/lambda.scm[14.14], runtime/lambdx.scm[14.8],
runtime/list.scm[14.23], runtime/load.scm[14.51],
runtime/make.scm[14.63], runtime/msort.scm[14.6],
runtime/ntdir.scm[1.2], runtime/ntprm.scm[1.25],
runtime/numint.scm[1.6], runtime/numpar.scm[14.17],
runtime/option.scm[14.36], runtime/optiondb.scm[1.5],
runtime/ordvec.scm[1.2], runtime/os2ctype.scm[1.3],
runtime/os2dir.scm[1.5], runtime/os2graph.scm[1.14],
runtime/os2prm.scm[1.38], runtime/os2winp.scm[1.15],
runtime/output.scm[14.17], runtime/packag.scm[14.28],
runtime/parse.scm[14.30], runtime/partab.scm[14.5],
runtime/pathnm.scm[14.32], runtime/poplat.scm[14.4],
runtime/port.scm[1.11], runtime/pp.scm[14.39],
runtime/prgcop.scm[1.6], runtime/process.scm[1.22],
runtime/prop1d.scm[14.6], runtime/prop2d.scm[14.3],
runtime/qsort.scm[14.4], runtime/queue.scm[14.4],
runtime/random.scm[14.18], runtime/rbtree.scm[1.6],
runtime/record.scm[1.28], runtime/recslot.scm[1.4],
runtime/rep.scm[14.52], runtime/rgxcmp.scm[1.109],
runtime/runtime.cbf[1.3], runtime/runtime.pkg[14.300],
runtime/runtime.sf[14.13], runtime/savres.scm[14.30],
runtime/scan.scm[14.6], runtime/scode.scm[14.16],
runtime/scomb.scm[14.16], runtime/sdata.scm[14.3],
runtime/sfile.scm[14.20], runtime/site.scm.dos[1.14],
runtime/site.scm.unix[1.15], runtime/socket.scm[1.13],
runtime/starbase.scm[1.13], runtime/stream.scm[14.12],
runtime/string.scm[14.17], runtime/strnin.scm[14.5],
runtime/strott.scm[14.5], runtime/strout.scm[14.9],
runtime/symbol.scm[1.4], runtime/sysclk.scm[14.4],
runtime/sysmac.scm[14.3], runtime/system.scm[14.13],
runtime/thread.scm[1.24], runtime/tscript.scm[1.2],
runtime/ttyio.scm[1.6], runtime/tvector.scm[1.2],
runtime/udata.scm[14.19], runtime/uenvir.scm[14.38],
runtime/uerror.scm[14.45], runtime/unpars.scm[14.46],
runtime/unsyn.scm[14.20], runtime/unxdir.scm[14.11],
runtime/unxprm.scm[1.51], runtime/unxpth.scm[14.25],
runtime/uproc.scm[1.11], runtime/urtrap.scm[14.5],
runtime/usrint.scm[1.16], runtime/utabs.scm[14.13],
runtime/vector.scm[14.12], runtime/version.scm[14.176],
runtime/where.scm[14.11], runtime/wind.scm[14.6],
runtime/wrkdir.scm[14.8], runtime/wttree.scm[1.10],
runtime/x11graph.scm[1.48], runtime/xeval.scm[1.6],
runtime/ystep.scm[1.3], sf/butils.scm[4.10], sf/cgen.scm[4.4],
sf/chtype.scm[4.3], sf/copy.scm[4.5], sf/emodel.scm[4.4],
sf/free.scm[4.3], sf/gconst.scm[4.23], sf/gimprt.scm[4.2],
sf/lsets.scm[4.3], sf/make.scm[4.33], sf/object.scm[4.9],
sf/pardec.scm[4.11], sf/pthmap.scm[4.5], sf/reduct.scm[4.10],
sf/sf.cbf[1.3], sf/sf.pkg[4.11], sf/sf.sf[4.8], sf/subst.scm[4.16],
sf/table.scm[4.5], sf/tables.scm[4.3], sf/toplev.scm[4.15],
sf/usicon.scm[4.4], sf/usiexp.scm[4.39], sf/xform.scm[4.9],
sicp/compat.scm[1.8], sicp/genenv.scm[1.3], sicp/graphics.scm[1.5],
sicp/sbuild.scm[1.5], sicp/stream.scm[1.2], sicp/strmac.scm[1.2],
sicp/studen.scm[1.10], sos/class.scm[1.9], sos/compile.scm[1.3],
sos/ed-ffi.scm[1.2], sos/instance.scm[1.8], sos/load.scm[1.5],
sos/macros.scm[1.9], sos/method.scm[1.11], sos/microbench.scm[1.2],
sos/printer.scm[1.2], sos/slot.scm[1.7], sos/sos.pkg[1.8],
swat/scheme/swat.sf[1.3], wabbit/load.scm[1.3],
wabbit/wabbit.cbf[1.2], wabbit/wabbit.pkg[1.2],
wabbit/wabbit.scm[1.2], wabbit/wabbit.sf[1.3],
win32/clipbrd.scm[1.5], win32/dib.scm[1.3],
win32/dibutils/dibutils.c[1.4], win32/dibutils/dibutils.def[1.3],
win32/dibutils/dibutils.h[1.4], win32/dibutils/makefile.msc[1.3],
win32/dibutils/makefile.wcc[1.3], win32/ffimacro.scm[1.3],
win32/graphics.scm[1.16], win32/make.scm[1.6], win32/module.scm[1.4],
win32/protect.scm[1.3], win32/wf_user.scm[1.10],
win32/win32.cbf[1.3], win32/win32.pkg[1.11], win32/win32.sf[1.4],
win32/win_ffi.scm[1.6], win32/wt_user.scm[1.4]:
Change copyright to GPL.

* compiler/rtlbase/rtlty1.scm[4.22], microcode/ppband.c[9.48]:
Unknown changes by Stephen Adams.

* compiler/machines/spectrum/compiler.pkg[1.49]:
Enable disassembler.

1998-12-31 Chris Hanson <[email protected]>

* edwin/snr.scm[1.49]:
Don't stop news-article iteration for articles that are no longer
available; continue the iteration.

* edwin/edwin.pkg[1.230], edwin/nntp.scm[1.21], edwin/snr.scm[1.48]:
Add ability to specify a proxy for a NNTP server.

1998-12-29 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.229], edwin/edwin.pkg[1.228], edwin/nntp.scm[1.20],
edwin/snr.scm[1.47]:
Implement variable news-group-cache-policy to control disk cacheing of
news-group information.

* edwin/edwin.pkg[1.227], edwin/snr.scm[1.46]:
Change news-group formatting once more -- this time to give the
author's name a constant amount of space and expand the subject to
fill any remaining space.

1998-12-25 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.170], edwin/bufout.scm[1.10], edwin/snr.scm[1.45]:
Change news-group-truncate-subject variable to allow truncation
proportional to the width of the buffer. Define new procedures
BUFFER-X-SIZE and MARK-X-SIZE.

1998-12-17 Chris Hanson <[email protected]>

* edwin/info.scm[1.132]:
Fix typo in info-directory-list documentation string.

1998-12-09 Chris Hanson <[email protected]>

* edwin/filcom.scm[1.197], edwin/modefs.scm[1.152]:
Implement M-x insert-filename.

1998-12-04 Chris Hanson <[email protected]>

* compiler/fgopt/closan.scm[4.17]:
Fix bug: under specific conditions the closure analyzer could attempt
to "undrift" a block to be a descendant of another block that was
already its ancestor. This resulted in a SIGSEGV. The bug is fixed,
and an error check inserted that will provide a more reasonable error
message should something similar happen.

* edwin/prompt.scm[1.173]:
Fix bug: under some circumstances a null completion message was being
echoed in the minibuffer.

1998-11-23 Chris Hanson <[email protected]>

* runtime/ntprm.scm[1.24], runtime/os2prm.scm[1.37]:
Change USER-HOME-DIRECTORY to generate an error if it can't find the
home directory. This is what the unix version of this procedure does.

The reason for this change is that it will allow files whose names
begin with "~" to be referenced. Such files are commonly generated by
some Windows installation programs.

1998-11-18 Chris Hanson <[email protected]>

* edwin/filcom.scm[1.196], edwin/unix.scm[1.87], edwin/unix.scm[1.86]:
Eliminate another file error in prompting.

* edwin/intmod.scm[1.94]:
Eliminate mistaken extra binding for C-c C-u in interaction mode.

* edwin/filcom.scm[1.195], edwin/prompt.scm[1.172],
edwin/snr.scm[1.44], edwin/utils.scm[1.44]:
Add additional argument to PROMPT-FOR-COMPLETED-STRING that controls
whether the completion is case-insensitive; change callers to pass
this extra argument. Redefine STRING-GREATEST-COMMON-PREFIX to be
case-sensitive, define STRING-GREATEST-COMMON-PREFIX-CI, and change
callers to use the appropriate version.

* edwin/filcom.scm[1.194]:
Eliminate various I/O errors that can occur during completion.

1998-11-05 Chris Hanson <[email protected]>

* microcode/x11graph.c[1.40]:
Special-case handling when the virtual/physical coordinate translation
uses a slope of zero or infinity.

1998-11-03 Chris Hanson <[email protected]>

* edwin/schmod.scm[1.43]:
Do case-sensitive completion if *PARSER-CANONICALIZE-SYMBOLS?* is
false.

* runtime/option.scm[14.35]:
Guarantee that *PARSER-CANONICALIZE-SYMBOLS?* is #T when loading
option files.

* runtime/x11graph.scm[1.47]:
Change X-GRAPHICS/READ-BUTTON to signal an error when the
DELETE-WINDOW event is received.

1998-10-23 Chris Hanson <[email protected]>

* edwin/shell.scm[1.18]:
Fix typo.

* edwin/dosfile.scm[1.21]:
Fix formatting.

* edwin/shell.scm[1.17]:
When completing commands, don't insert executable suffixes.

* edwin/dosfile.scm[1.20], edwin/edwin.pkg[1.226],
edwin/unix.scm[1.85]:
Implement OS/EXECUTABLE-PATHNAME-TYPES. Modify DOS/FIND-PROGRAM to
look in the same directory as the Scheme executable (Win32 only).

* microcode/sysprim.c[9.45], microcode/sysprim.c[9.44],
microcode/sysprim.c[9.43]:
Implement SCHEME-PROGRAM-NAME primitive. This returns (argv[0]).

* win32/wf_user.scm[1.9]:
Implement GET-MODULE-FILE-NAME.

* edwin/dos.scm[1.47]:
Adjust DOS/WINDOWS-TYPE to recognize Win98.

1998-10-22 Chris Hanson <[email protected]>

* microcode/ntgui.c[1.24]:
Improve command-line parser to recognize double-quoted arguments.
This is necessary to support quoted long filenames as arguments.

1998-10-21 Chris Hanson <[email protected]>

* microcode/nttop.c[1.28]:
Work around unpleasant behavior in Windows 98.

* microcode/nttop.c[1.27]:
Fix typo.

* microcode/nttop.c[1.26]:
Use GetVersionEx instead of GetVersion. The newer call provides more
detailed information and will recognize newer OS versions.

1998-10-20 Chris Hanson <[email protected]>

* edwin/dosfile.scm[1.19]:
Generalize shell-prompt-pattern to allow standard Windows shell
prompt.

1998-10-19 Chris Hanson <[email protected]>

* microcode/os2top.c[1.16.1.1]:
Update version-string code to recognize Warp 4.0 encoding.

* runtime/ntprm.scm[1.4.1.1]:
Recognize FAT32 file-system type and treat it as equivalent to VFAT.

* edwin/editor.scm[1.240.1.1], edwin/edwin.pkg[1.184.1.1]:
Implement "-edit" command-line option in 7.4 release.

1998-10-18 Chris Hanson <[email protected]>

* microcode/version.h[11.151.1.5], runtime/make.scm[14.57.1.1],
runtime/runtime.pkg[14.266.1.2], runtime/runtime.pkg[14.266.1.1]:
Changes to integrate "stream.scm" revision 14.11 into the 7.4 release.

1998-10-14 Chris Hanson <[email protected]>

* edwin/info.scm[1.131]:
Make sure that only namestrings are recorded in INFO-HISTORY.

1998-09-08 Chris Hanson <[email protected]>

* edwin/snr.scm[1.43]:
Further extend M-x news-output-article and M-x
news-output-article-to-rmail-file so that they accept a prefix
argument and operate on the next several articles.

* edwin/comtab.scm[1.68]:
Fix bug: when defining a command that is bound to a lower-case letter,
don't define the corresponding upper-case letter unless it is
undefined in the entire comtab chain. Previously, the code only
looked at the current comtab and ignored the ancestor comtabs.

1998-09-07 Chris Hanson <[email protected]>

* edwin/snr.scm[1.42]:
* Fix bug: commands that update group message-count did not work in
"all-groups" and "new-groups" buffers.

* Extend M-x news-output-article and M-x
news-output-article-to-rmail-file so that they work in news-group
buffers as well as news-article buffers.

1998-09-06 Chris Hanson <[email protected]>

* runtime/ntprm.scm[1.23]:
Implement FILE-EXECUTABLE?, used by command-completion code in Edwin.
Rearrange file somewhat to make it better correspond to OS/2 file.

1998-08-31 Chris Hanson <[email protected]>

* edwin/loadef.scm[1.34]:
Fix typo.

* edwin/webster.scm[1.2]:
Fix compiler warning.

* edwin/decls.scm[1.61], edwin/ed-ffi.scm[1.44],
edwin/edwin.pkg[1.225], edwin/loadef.scm[1.33]:
Implement Webster commands.

* runtime/socket.scm[1.12]:
Use new primitive to map given port numbers to network order.

* microcode/ntsock.c[1.4], microcode/os2sock.c[1.8],
microcode/os2sock.c[1.7], microcode/pruxsock.c[1.15],
microcode/uxsock.c[1.17], microcode/uxsock.h[1.7]:
Implement primitive to map socket port numbers from host to network
order.

1998-08-30 Chris Hanson <[email protected]>

* edwin/shell.scm[1.16]:
Fix two bugs in command completion: (1) completions list contained
wrong entries in some circumstances, and (2) command-completion
procedure not returning #T in all circumstances that it did
completion.

* edwin/dosfile.scm[1.18], edwin/shell.scm[1.15], edwin/unix.scm[1.84]:
Implement completion of commands.

* edwin/comint.scm[1.27]:
Redefine COMINT-DYNAMIC-COMPLETE so that it tries a list of completion
procedures, as in Emacs 19. Fix bug in COMINT-LINE-START: used
current value of COMINT-PROMPT-REGEXP rather than the one for the
buffer being examined.

* edwin/prompt.scm[1.171]:
Erase message when inserting completion. That way,
STANDARD-COMPLETION consistently writes something in the message area,
eradicating any previous message.

1998-07-31 Chris Hanson <[email protected]>

* microcode/x11base.c[1.72]:
If the BackSpace keysym is received, and XLookupString has translated
it into ASCII backspace, substitute ASCII rubout instead.

1998-07-25 Chris Hanson <[email protected]>

* microcode/s/Attic/linux.h[1.16], microcode/s/Attic/linux.h[1.15]:
Add comment regarding definition of TERMCAP_FILES with recent versions
of ncurses.

* microcode/uxfs.c[1.16]:
Explicitly code the Linux superblock magic constants in this file.
The previous trick of reading various kernel header files no longer
works when linking with glibc2, because there are symbol conflicts
between the kernel and glibc2.

1998-07-20 Chris Hanson <[email protected]>

* microcode/Attic/config.h[9.99]:
Must call mprotect to set the "execute" bit on Scheme's memory, so
compiled code can run. Also, implement mechanism to use mprotect to
flush the cache (which is disabled by default).

* microcode/missing.c[9.31], microcode/psbmap.h[9.42]:
Include "oscond.h" to get definition for _IRIX.

* microcode/cmpauxmd/mips.m4[1.14], microcode/cmpintmd/mips.h[1.22]:
Fix copyright date.

* microcode/Attic/oscond.h[1.25], microcode/fasload.c[9.85],
microcode/fasload.c[9.84], microcode/option.c[1.47],
microcode/option.c[1.46], microcode/option.c[1.37.1.1],
microcode/regex.c[1.18], microcode/terminfo.c[1.2],
microcode/ux.h[1.70], microcode/ux.h[1.60.1.2], microcode/ux.h[1.69],
microcode/uxio.c[1.42], microcode/uxtrap.h[1.27]:
Changes for IRIX 6.x.

1998-07-19 Chris Hanson <[email protected]>

* microcode/cmpauxmd/mips.m4[1.13]:
More recent MIPS processors (and the corresponding assemblers) require
that the stack pointer always be a multiple of 8. Change the code to
make that so. Also, work around an assembler bug having to do with
".globl" and the "la" pseudo-instruction.

* microcode/Attic/config.h[9.83.1.1], microcode/cmpintmd/mips.h[1.21]:
Must call mprotect to set the "execute" bit on Scheme's memory, so
compiled code can run. Also, implement mechanism to use mprotect to
flush the cache (which is disabled by default).

* microcode/Attic/oscond.h[1.15.1.1], microcode/bintopsb.c[9.63.1.1],
microcode/bintopsb.c[9.68], microcode/option.c[1.35.1.1],
microcode/regex.c[1.14.1.1], microcode/unxutl/Attic/config[1.30],
microcode/unxutl/Attic/ymkfile[1.87.1.1], microcode/ux.h[1.60.1.1],
microcode/uxio.c[1.33.1.1], microcode/uxtrap.h[1.23.1.1]:
Changes for IRIX 6.x.

1998-07-09 Chris Hanson <[email protected]>

* win32/clipbrd.scm[1.4], win32/clipbrd.scm[1.3], win32/make.scm[1.5],
win32/wf_user.scm[1.8]:
Fix bug in clipboard implementation.

1998-06-29 Chris Hanson <[email protected]>

* edwin/javamode.scm[1.2]:
Fix typo.

* edwin/decls.scm[1.60], edwin/dosfile.scm[1.17],
edwin/ed-ffi.scm[1.43], edwin/edwin.ldr[1.62],
edwin/edwin.pkg[1.224], edwin/unix.scm[1.83]:
Add Java mode.

* edwin/cinden.scm[1.18]:
Various changes to handle C++/Java "//" comments.

1998-06-28 Chris Hanson <[email protected]>

* edwin/syntax.scm[1.82]:
Work around compiler bug.

* edwin/cinden.scm[1.17], edwin/edwin.pkg[1.223]:
Export new procedure C-COMPUTE-INDENTATION for use by Java mode.

* edwin/syntax.scm[1.81], edwin/syntax.scm[1.80]:
Allow MAKE-SYNTAX-TABLE to take an argument, which if given is the
table to copy.

1998-06-21 Chris Hanson <[email protected]>

* edwin/nntp.scm[1.19]:
If NNTP server closes connection, attempt to notice this and recover
by reopening the connection. Previously, we just signalled an error
and the user had to manually reopen. Problem: the specific error code
to be returned by the server in this situation is not specified in the
RFC, so we must determine the value empirically.

* edwin/intmod.scm[1.93]:
When flushing output, recognize ";Quit!".

1998-06-20 Chris Hanson <[email protected]>

* edwin/snr.scm[1.41]:
Fix fencepost type error.

1998-06-18 Chris Hanson <[email protected]>

* microcode/uxfs.c[1.15], microcode/uxfs.c[1.14],
runtime/unxprm.scm[1.50]:
Add code to detect NTFS file system under Linux.

1998-06-07 Chris Hanson <[email protected]>

* cref/toplev.scm[1.11]:
Add usual-integrations declaration to constructor/loader definitions
to eliminate compiler warning.

* runtime/parse.scm[14.29]:
Fix quoting problem associated with #!aux parsing.

* edwin/intmod.scm[1.92]:
Implement C-c C-l, C-c C-o, and C-c C-u as in shell buffers.

* edwin/comint.scm[1.26]:
Generalize code that refers to process mark so that it can be used in
an inferior-repl buffer. In coming-flush-output, don't flush output
unless there is some.

* edwin/schmod.scm[1.42]:
Fix bug: C-u M-A was not inserting args when one of the #! tokens
appeared in the argument list.

1998-06-01 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.91]:
Use in-buffer prompt to handle errors in the REPL buffer. The
modeline prompt was very intrusive and couldn't be aborted out of.
The new mechanism reads input exactly as the in-buffer debugger does,
and can be aborted.

* edwin/evlcom.scm[1.58]:
Most of the time, it's useful to use the global environment if a
particular package isn't loaded.

1998-05-31 Chris Hanson <[email protected]>

* runtime/dosprm.scm[1.40], runtime/ntprm.scm[1.22],
runtime/os2prm.scm[1.36], runtime/unxprm.scm[1.49]:
Change TEMPORARY-FILE-PATHNAME to allow a directory to be specified.

1998-05-18 Chris Hanson <[email protected]>

* sf/xform.scm[4.8]:
Fix thinko.

* sf/pardec.scm[4.10], sf/pthmap.scm[4.4]:
Fix pagination.

* sf/xform.scm[4.7]:
Add warning to be printed when the file being syntaxed doesn't have
USUAL-INTEGRATIONS. Fix pagination.

1998-05-05 Chris Hanson <[email protected]>

* runtime/uenvir.scm[14.37]:
Fix bugs in handling of ENVIRONMENT-ASSIGNABLE? and
ENVIRONMENT-ASSIGN! that are the analogs of the bug in
ENVIRONMENT-LOOKUP that was fixed in the previous revision.

* runtime/uenvir.scm[14.36]:
Fix bug: ENVIRONMENT-LOOKUP did not look at parent environments if the
environment being operated on was a compiled-code environment.
Instead, it bombed with a type error.

1998-05-04 Chris Hanson <[email protected]>

* runtime/rbtree.scm[1.5], runtime/runtime.pkg[14.299]:
Add operations to read or delete the min/max elements of a tree.

1998-05-01 Chris Hanson <[email protected]>

* edwin/evlcom.scm[1.57]:
Change the test used to determine if SCHEME-ENVIRONMENT is being set
to a package name.

1998-04-30 Chris Hanson <[email protected]>

* runtime/Attic/syntax.scm[14.30]:
Fix ENVIRONMENT-SYNTAX-TABLE so that it works for compiled-code
environments.

* edwin/evlcom.scm[1.56]:
Don't convert package names to environments when binding the
SCHEME-ENVIRONMENT buffer variable -- this is a screw when reloading
packages. Also, use new ENVIRONMENT-SYNTAX-TABLE to determine the
default syntax table to be used when evaluating.

* edwin/edwin.ldr[1.61]:
Use new mechanism to bind syntax tables to environments.

* runtime/Attic/syntax.scm[14.29], runtime/global.scm[14.50],
runtime/global.scm[14.49], runtime/runtime.pkg[14.298]:
Add mechanism to associate syntax tables with environments.

* runtime/msort.scm[14.5], runtime/qsort.scm[14.3],
runtime/runtime.pkg[14.297]:
Change sort routines so that both merge and quick sort can be loaded
at the same time. As before, SORT and SORT! default to merge sort.

1998-04-28 Chris Hanson <[email protected]>

* sos/macros.scm[1.8]:
Fix bug: internal definitions weren't being handled by DEFINE-METHOD.

1998-04-18 Chris Hanson <[email protected]>

* microcode/prntenv.c[1.7]:
Add primitive WIN32-VIRTUAL-QUERY, which is a direct interface to the
Win32 VirtualQuery API call. This is very useful for examining
Scheme's address space.

* microcode/memmag.h[1.6], microcode/ntgui.c[1.23],
microcode/nttop.c[1.25]:
Add mechanism to reserve the largest available block of memory below
0x04000000 at the earliest possible moment. This maximizes the amount
of memory available for Scheme's heap. Unfortunately, it still isn't
very much space compared to other platforms, and under Visual C++ it
isn't even as much as that provided by Watcom C/C++. I don't know why
this is so poor, or whether there is anything to be done about it.

* microcode/ntutl/makefile[1.22]:
Use external debugging info (-Zi) and map the program text above
0x04000000 so that it minimally interferes with Scheme's heap.

* microcode/Attic/config.h[9.98], microcode/cmpauxmd/i386.m4[1.48],
microcode/nttrap.c[1.16]:
Define WINNT_RAW_ADDRESSES -- alternative isn't used any longer and
has a small time penalty.

1998-04-16 Chris Hanson <[email protected]>

* microcode/ntscreen.c[1.35]:
Make screen_y_extra patch more clever so that it works right under
Watcom and Visual C++.

* microcode/ntutl/makefile[1.21]:
Add resources to executables.

* microcode/ntscreen.c[1.34]:
Fix two bugs under Visual C++: System-menu icon was wrong, and window
height was off by one pixel.

* microcode/ntgui.c[1.22]:
Tweak inline assembly code for Visual C++.

* microcode/ntutl/makefile[1.20]:
Changes to support crypto/gdbm DLLs.

1998-04-14 Chris Hanson <[email protected]>

* microcode/Attic/oscond.h[1.24], microcode/Attic/posixtyp.h[1.15],
microcode/ansidecl.h[1.6], microcode/intprm.c[1.8],
microcode/ntfile.c[1.12], microcode/ntgui.c[1.21],
microcode/ntio.c[1.21], microcode/ntproc.c[1.7],
microcode/ntscreen.c[1.33], microcode/ntsock.c[1.3],
microcode/ntutl/makefile[1.19], microcode/option.c[1.45],
microcode/outf.c[1.10], microcode/prntio.c[1.9],
microcode/utils.c[9.73]:
Changes to get microcode working when compiled with Microsoft Visual
C++ version 5.0.

1998-04-10 Chris Hanson <[email protected]>

* microcode/ntfs.c[1.23]:
Don't signal error when user requests a DIRECTORY-READ on a pattern
that matches no files.

1998-04-01 Chris Hanson <[email protected]>

* runtime/make.scm[14.62], runtime/runtime.pkg[14.296],
runtime/stream.scm[14.11]:
Be more aggressive about dropping pointers to streams when traversing
them. Provide more accurate error messages for malformed streams.

1998-03-31 Chris Hanson <[email protected]>

* runtime/stream.scm[14.10]:
Eliminate numerous brain-damaged references (mea culpa!) to the head
of a stream in procedures that map down the stream.

Fix a premature-dereference bug in STREAM-MAP.

* runtime/random.scm[14.17]:
Fix thinko -- random-state objects must have unparser.

1998-03-29 Chris Hanson <[email protected]>

* microcode/os2fs.c[1.9]:
Don't signal error when user requests a DIRECTORY-READ on a pattern
that matches no files.

1998-03-20 Chris Hanson <[email protected]>

* microcode/uxtrap.h[1.26]:
Change name of Linux sigcontext structure, because RedHat defines a
conflicting structure in their newer releases.

1998-03-19 Chris Hanson <[email protected]>

* sos/macros.scm[1.7]:
Implement SEPARATOR option to DEFINE-CLASS.

1998-03-11 Chris Hanson <[email protected]>

* edwin/info.scm[1.130]:
Reset tag-table locations after reading dir file.

1998-03-09 Chris Hanson <[email protected]>

* edwin/dosfile.scm[1.16]:
Fix bug: illegal auto-save filenames were being generated on NTFS and
VFAT.

* runtime/dospth.scm[1.38]:
Restrict parsing of device so that it requires a single letter.

* runtime/runtime.pkg[14.295]:
Export STRING->CHAR-SET, added in 1995 but obviously never used.

1998-03-08 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.90]:
Add ability to prompt for inferior-REPL errors just as is done for
ordinary buffer evaluation. Make this prompting the default.

* edwin/debug.scm[1.43]:
Fix thinko in previous change.

* edwin/artdebug.scm[1.25], edwin/debug.scm[1.42],
edwin/editor.scm[1.243], edwin/edwin.pkg[1.222],
edwin/evlcom.scm[1.55]:
Change interface procedure DEBUG-SCHEME-ERROR so that it returns if
the user opts not to enter the debugger. Also, do a better job of
presenting the error message to the user when asking whether to start
the debugger.

* edwin/bufcom.scm[1.104], edwin/debuge.scm[1.52],
edwin/hlpcom.scm[1.108], edwin/info.scm[1.129],
edwin/prompt.scm[1.170], edwin/regcom.scm[1.21], edwin/vc.scm[1.29]:
Add argument to callers of POP-UP-TEMPORARY-BUFFER so that they can
pass properties through.

1998-03-07 Chris Hanson <[email protected]>

* edwin/evlcom.scm[1.54]:
Tweak error-reporting mechanism to make it more reliable. Trouble is
that this isn't the right place for it -- it should be integrated into
the debugger interface.

1998-03-04 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.294]:
Export (inexplicably missing) stream procedures.

1998-03-02 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.89]:
Add missing documentation for various commands.

* edwin/schmod.scm[1.41]:
Add documentation for c-m-i and m-A.

1998-02-23 Chris Hanson <[email protected]>

* edwin/nntp.scm[1.18]:
Add stupid mechanism to break cycles in reference graphs. This
doesn't try to do a good job -- it just breaks them at the point where
they are discovered. After having used this program for over a year,
the cycle I just ran across was the first, out of perhaps 100,000
messages or more, so this is an unusual occurrence.

1998-02-22 Stephen Adams <[email protected]>

* compiler/machines/i386/lapopt.scm[1.5]:
The previous change caused LAPOPT to take huge amounts of time (65% of
compile time). Reverted to old matcher and patterns (about 5%) and
added a hash table dispatch to make LAPOPT's time insignificant (now
<1%).

1998-02-22 Chris Hanson <[email protected]>

* runtime/Attic/macros.scm[1.2], runtime/rep.scm[14.51],
runtime/runtime.pkg[14.293]:
Eliminate BKPT macro in favor of procedure. The macro used
(THE-ENVIRONMENT), which screwed the compiler. The procedure uses the
environment of the first subproblem of the continuation of the call,
which in many cases is the same thing.

The effect of the old BKPT macro can still be achieved by writing

(breakpoint-procedure (the-environment) ...)

1998-02-21 Stephen Adams <[email protected]>

* compiler/rtlgen/opncod.scm[4.67]:
Changed open-coding of range checks to use unsigned comparison which
checks the high and low limits in one operation. Range checks without
an upper bound generate an INDEX-FIXNUM check. Open coding of
INDEX-FIXNUM still needs to be implemented on the MIPS.

1998-02-19 Stephen Adams <[email protected]>

* compiler/back/lapgn1.scm[4.17], compiler/machines/C/lapgen.scm[1.11],
compiler/machines/alpha/lapgen.scm[1.5],
compiler/machines/bobcat/lapgen.scm[4.50],
compiler/machines/i386/lapgen.scm[1.26],
compiler/machines/i386/rules3.scm[1.33],
compiler/machines/mips/lapgen.scm[1.15],
compiler/machines/sparc/lapgen.scm[1.2],
compiler/machines/spectrum/lapgen.scm[4.47],
compiler/machines/vax/lapgen.scm[4.15]:
There was a subtle problem with the interrupt check determining code.

The old code was lazy about searching the rgraph to determine if entry
points and exit points were leaf-like. It explored the whole tree
when when it found some entry RTL. This is a problem in the case of
expressions since expressions have no distinguished entry RTL. Thus
LAP was generated for some expression bblocks before the search took
place. This is a problem because the LAP instructions replace the RTL
instructions, and the RTL is needed to determine the interrupt checks.

The whole compiler staged only because type-checking is turned off by
default. The RINST-INSN field is a (vector-ref 0), which, when
unchecked, fortuitously happened to load the CDR of the LAP, which
then proceeded to gracefully fail the RTL predicates.

The solution is to introduce a PRE-LAPGEN-ANALYSIS procedure to to
machine dependent analysis immediately prior to LAP generation.

The analysis for the i386 back end does the original analysis.
The other back ends do nothing.

* compiler/back/regmap.scm[4.13]:
Fixed abstraction violations where '() was being used instead of (LAP).

* compiler/machines/i386/rulfix.scm[1.30]:
Improved patterns for (fix:* n 2) and (fix:lsh n -1)

1998-02-18 Stephen Adams <[email protected]>

* compiler/machines/i386/rulflo.scm[1.21]:
Improved search for target register - stronger preference for ST(0) as
result of unary or binary flonum operations.

Load flonum constants pc-relative rather than (double indirect) via
constants block. Load flonum constants as 32 bit constants if
possible since this avoids mis-alignment penalty.

* compiler/machines/i386/lapgen.scm[1.25],
compiler/machines/i386/rulrew.scm[1.13]:
Changes to improve flonum code.

Prefer ST(0) over other registers as a target for flonum operations.
- lapgen: sort-machine-registers
- rulflo: improved search for target register
- rulrew: accept any flonum constants, not just 0.0 and 1.0

* compiler/machines/i386/rulfix.scm[1.29]:
Better rules for (fix:lsh ? <constant>)

1998-02-17 Stephen Adams <[email protected]>

* compiler/machines/i386/dassm3.scm[1.5]:
Added missing opcode: FADDP

1998-02-16 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.292], runtime/thread.scm[1.23]:
Change mechanism used to signal the no-current-thread error. Previous
mechanism tried to directly signal the error, which results in
divergence. New mechanism sends the error to the console thread, or
ignores the error if there is no console thread.

Modify blocking code to catch any errors that occur while blocked.
These errors are being signalled in the no-current-thread state, and
must be resignalled to the console thread (again, they are ignored if
there is no console thread).

Modify several thread operations to be no-ops in the no-current-thread
state, rather than signalling an error.

Implement new procedure CONSOLE-THREAD.

* compiler/machines/i386/rules3.scm[1.32],
compiler/machines/i386/rules3.scm[1.31]:
Fix apparently irrelevant thinko.

1998-02-14 Stephen Adams <[email protected]>

* compiler/machines/i386/lapopt.scm[1.4]:
Generalized patterns for OR and AND.

* compiler/machines/i386/rules3.scm[1.30]:
Merged in changes that eliminate interrupt checks in leaf-like
procedures.

* runtime/chrset.scm[14.7]:
zero? -> fix:zero?

1998-02-13 Stephen Adams <[email protected]>

* runtime/chrset.scm[14.6]:
Change arithmetic in loops to fixnum arithmetic.

* runtime/char.scm[14.9]:
Update CHAR-CODE-LIMIT and CHAR-INTEGER-LIMIT for wide characters.
This should have been part of the previous update, but these constants
are unused, so no harm done.

1998-02-13 Chris Hanson <[email protected]>

* edwin/vc.scm[1.28]:
Fix two bugs that occur when using revisions off the main branch.

* microcode/s/Attic/linux.h[1.7.1.3]:
Integrate static-linking changes from revision 1.14.

1998-02-12 Chris Hanson <[email protected]>

* edwin/sendmail.scm[1.42]:
Fix thinko in previous change.

* compiler/machines/C/cout.scm[1.20], edwin/edwin.pkg[1.221],
edwin/sendmail.scm[1.41], runtime/runtime.pkg[14.291],
runtime/savres.scm[14.29], runtime/system.scm[14.12],
runtime/system.scm[14.11], runtime/system.scm[14.10]:
Eliminate "system" datatype. Replace it by a simpler "subsystem
identification" mechanism.

* runtime/system.scm[14.9]:
Change ADD-SYSTEM! to replace an existing entry of the same name.

* compiler/machines/sparc/make.scm[1.2]:
Use common loader for compiler.

* 6001/make.scm[15.28], compiler/base/make.scm[4.108],
cref/make.scm[1.16], edwin/make.scm[3.93], pcsample/load.scm[1.4],
runtime/version.scm[14.175], sf/make.scm[4.32], sicp/sbuild.scm[1.4],
sos/load.scm[1.4], swat/scheme/load.scm[1.3], wabbit/load.scm[1.2],
win32/make.scm[1.4]:
Change to use ADD-IDENTIFICATION! rather than ADD-SYSTEM!.

1998-02-11 Stephen Adams <[email protected]>

* win32/win_ffi.scm[1.5]:
Fix bug where char* was refusing strings.

1998-02-11 Chris Hanson <[email protected]>

* runtime/make.scm[14.61], runtime/packag.scm[14.27],
runtime/runtime.pkg[14.290]:
Undo previous change, but add global variable
*ALLOW-PACKAGE-REDEFINITION?* that, if true, allows packages to be
redefined. Intent is that this variable will be fluid-bound by
programs that want to be reloadable.

* edwin/tterm.scm[1.27]:
Add code to map the 8th bit of an incoming character to the meta bit.

* runtime/packag.scm[14.26]:
Change default: PACKAGE/ADD-CHILD! previously allowed redefinition of
a package child only when the optional argument was true. Now,
redefinition is always allowed _unless_ the optional argument is true.

Additionally, when a package is redefined, all of its child packages
are deleted.

The motivation for this change is to allow reloading of software
subsystems that use the package abstraction. Previously, once such a
subsystem was loaded, it could not be reloaded without restarting
Scheme.

1998-02-01 Chris Hanson <[email protected]>

* edwin/unix.scm[1.82]:
Rewrite OS/BUFFER-BACKUP-PATHNAME to use the algorithm from
"dosfile.scm". This fixes the bug that caused compressed backup files
to be ignored when computing the name of a numeric backup file.

* microcode/ntfs.h[1.3]:
Accept a wider range of error codes as valid reasons why a given file
might be inaccessible.

* microcode/ntfs.c[1.22], microcode/nttrap.c[1.15]:
Disable critical-error and GPF pop-up boxes.

* 6001/make.scm[15.27], win32/make.scm[1.3]:
Patch loader so that debugging info will work on other systems.

* 6001/floppy.scm[1.23]:
Move with-saved-configuration to Edwin proper. This will eliminate
unassigned-variable bug in LOAD-PS-COPY-FILE when running in contexts
where "floppy.scm" isn't loaded.

* edwin/buffrm.scm[1.52], edwin/edwin.pkg[1.220]:
Implement mechanism to save a screen configuration for a given dynamic
extent.

1998-01-30 Chris Hanson <[email protected]>

* win32/graphics.scm[1.15]:
Don't activate graphics windows when they are created.

* win32/graphics.scm[1.14]:
Implement workaround for fatal Windows NT bug. The bug crashes NT 4.0
and can be recreated by creating a number of graphics windows and then
closing them with their close buttons. The workaround disables the
close button.

1998-01-29 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.219], edwin/xterm.scm[1.55]:
Implement procedure to return the size of the display root window.

* microcode/x11base.c[1.71]:
Add new primitive to return the size of the root window of a display.

1998-01-23 Chris Hanson <[email protected]>

* edwin/info.scm[1.128]:
Finish previous change so that no reference is made to the Edwin info
directory at the time that the band is made.

* 6001/pic-imag.scm[1.9]:
Change method used to determine whether image data is stored in a
string or a vector: don't use image depth, instead examine contents of
gray map to see if pixel values fit in string.

* 6001/picture.scm[1.27]:
Fix bug: in new image design, gray map must always be a vector.

* 6001/make.scm[15.26]:
Don't load "floppy" unless running under HP-UX.

* 6001/floppy.scm[1.22]:
Change subprocess stuff to allow redisplay.

* 6001/edextra.scm[1.26]:
Reconditionalize decision to use the hairy floppy stuff so that it
only happens on HP-UX.

1998-01-22 Chris Hanson <[email protected]>

* 6001/floppy.scm[1.21]:
Fix random bug caused by changes in revision 1.16.

* 6001/floppy.scm[1.20]:
Fix problem caused by incorrect assumption that universal time is the
same as unix file time.

1998-01-20 Stephen Adams <[email protected]>

* edwin/calias.scm[1.17], edwin/modefs.scm[1.151],
microcode/ntscreen.c[1.32], microcode/ntscreen.h[1.16],
microcode/object.h[9.48], runtime/char.scm[14.8]:
Changes for International keyboards on win32 systems.

ntscreen changed to work better with international keyboards. The
changes peek into the event queue to see how the key presses have been
translated into characters. Modifiers are also tracked to enable them
to be detected in parallel with keyboard translations (so that
modifier chords like C-M- are detected).

Characters now have 16 bits of character code (instead of 7) to allow
8-bit ISO latin and Unicode characters. Strings are still based on
8-bit characters.

Runtime changed to allow these `wide' characters to be written and
read e.g. #\<code62834>

Edwin modes changed to treat characters in the range 128-255 as normal
alphabetic characters (to enable accented characters).

1998-01-20 Chris Hanson <[email protected]>

* 6001/edextra.scm[1.25]:
Don't disable compressed and encrypted files. Info needs compressed
files to do its job properly.

* microcode/s/Attic/linux.h[1.14],
microcode/unxutl/Attic/ymkfile[1.93]:
Add conditionalizations to give more control over the linking of
termcap and X11 files.

* microcode/tterm.c[1.5]:
Change call `tparam' so that it does not depend on a feature only
available in GNU `tparam'. This is important on GNU/Linux because it
allows us to statically link "ncurses".

This has the added benefit that it allows the "ncurses" stuff to work
correctly. Previously, when using "ncurses", the screen was scrambled
so badly that it couldn't be used. This appears to be a consequence
of the combination of GNU `tparam' with "ncurses".

1998-01-09 Chris Hanson <[email protected]>

* microcode/ntfs.c[1.21], microcode/ntfs.c[1.20]:
Add code to dummy the file info for the root directory on Windows 95.

1998-01-08 Chris Hanson <[email protected]>

* edwin/print.scm[1.16], edwin/print.scm[1.15]:
Modify Windows printing so that it works on Windows 95, which doesn't
have the "print" program.

* microcode/ntio.c[1.20]:
Eliminate use of `GetHandleInformation', which is not implemented on
Windows 95. Add conditionalized tracing code for input operations.

* microcode/ntproc.c[1.6]:
Add conditionalized code to trace process activity.

* runtime/io.scm[14.53], runtime/io.scm[14.52],
runtime/process.scm[1.21], runtime/runtime.pkg[14.289]:
Fix bug in Windows 95: when a subprocess exits, close its I/O ports.
This is necessary because our code can get into a state where it is
trying to read from a subprocess pipe and needs to be told that the
other end of the pipe was closed. This indication is supplied by
Windows NT, but does not appear to work properly under Windows 95.

* runtime/ntprm.scm[1.21]:
Detect FAT32 file system and treat it the same as VFAT.

1998-01-05 Chris Hanson <[email protected]>

* microcode/x11graph.c[1.39]:
Fix method used to compute the size of an image's data array.
Previous method was little better than a guess -- and was wrong. New
method is correct and uses advertised procedures to determine correct
values.

1998-01-03 Chris Hanson <[email protected]>

* 6001/edextra.scm[1.24]:
Implement command-line option to specify student directory.

* edwin/info.scm[1.127]:
Change how info-directory-list is initialized so that it always
includes the distribution's directory.

* edwin/dosfile.scm[1.15], edwin/edwin.pkg[1.218],
edwin/info.scm[1.126], edwin/unix.scm[1.81], edwin/utils.scm[1.43]:
Implement Info directory-merging mechanism like that of Emacs. This
takes "dir" files from all of the directories in the Info directory
list and merges them into a single "dir" buffer.

1997-12-30 Chris Hanson <[email protected]>

* edwin/dos.scm[1.46], edwin/dosfile.scm[1.14], edwin/os2.scm[1.42]:
Change definition of DOS/DEFAULT-SHELL-FILE-NAME so that it is
computed at run time rather than at build time. This is necessary
because a band created on Windows NT can be used on Windows 95, and
must have different values for each of these systems.

* 6001/pic-imag.scm[1.8], 6001/picture.scm[1.26],
6001/picture.scm[1.25], 6001/picture.scm[1.24]:
Install new X11 gray-map code that understands about high-color
displays.

* runtime/ntprm.scm[1.20]:
Fix bug: CURRENT-HOME-DIRECTORY would signal an error when neither the
home directory nor the user name was available. Now, it returns the
root of the system drive instead.

* edwin/eystep.scm[1.5]:
Fix typo.

1997-12-29 Chris Hanson <[email protected]>

* microcode/ntfs.c[1.19]:
Fix "stat" code to properly handle filenames ending in a backslash.
This was working fine on NT, but apparently fails on '95.

1997-12-26 Chris Hanson <[email protected]>

* edwin/print.scm[1.14], edwin/print.scm[1.13]:
Add code to provide printing on NT.

1997-12-23 Chris Hanson <[email protected]>

* 6001/edextra.scm[1.23], 6001/edextra.scm[1.22]:
Add environment variable to specify the location of the 6.001 files.

* edwin/editor.scm[1.242], edwin/edwin.pkg[1.217]:
Add "-edit" command-line option to simplify starting editor.

* runtime/ntprm.scm[1.19], runtime/ntprm.scm[1.18]:
Add additional environment variable to check in order to find the
Windows 95 system directory.

1997-12-11 Stephen Adams <[email protected]>

* sicp/compat.scm[1.7], sicp/graphics.scm[1.4]:
Make graphics work for OS/2 and WIN32 as well as X.
Update copyright.

1997-12-02 Stephen Adams <[email protected]>

* runtime/Attic/syntax.scm[14.28], runtime/lambda.scm[14.13]:
Changed error report for duplicate names to explicitly mention the
duplicated names.

1997-11-29 Chris Hanson <[email protected]>

* microcode/ntscreen.c[1.31]:
Change font-name parsing code so that it will properly parse fonts
whose names begin with a digit.

1997-11-20 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.216]:
Add some missing packages to the Win32 implementation.

* edwin/comint.scm[1.25], edwin/telnet.scm[1.13]:
Define process filter to strip carriage-returns from the output of a
process. Change COMINT-EXEC to start a buffer's process -before- the
buffer's major mode is set, so that process filters can be defined in
the mode hooks.

* edwin/edwin.pkg[1.215], edwin/process.scm[1.53],
edwin/telnet.scm[1.12]:
Change interface to process-filter.

1997-11-19 Chris Hanson <[email protected]>

* edwin/process.scm[1.52], edwin/telnet.scm[1.11]:
Change interface to process-filter.

* win32/dibutils/makefile.wcc[1.2]:
Add compiler flag that specifies to compile the object files for use
in a DLL. Change optimization target from 486 to Pentium Pro.

1997-11-16 Chris Hanson <[email protected]>

* microcode/cmpauxmd/mips.m4[1.12]:
Fix instruction that causes an assembler error on newer assemblers.

1997-11-13 Chris Hanson <[email protected]>

* edwin/nntp.scm[1.17]:
Fix bugs relating to handling of messages whose bodies have been
removed from the server.

1997-11-12 Chris Hanson <[email protected]>

* runtime/ntprm.scm[1.17], runtime/os2prm.scm[1.35]:
Fix think-o.

* runtime/ntprm.scm[1.16]:
Fix code that determines system directory. My memory as to the
relevant environment variable was faulty when I wrote this.

* microcode/os2sock.c[1.6]:
Final changes to previous change, to eliminate compiler warnings and
other minor problems.

* runtime/ntprm.scm[1.15], runtime/os2prm.scm[1.34]:
Rewrite OS/2 and NT versions of CURRENT-USER-NAME,
CURRENT-HOME-DIRECTORY, and USER-HOME-DIRECTORY to use the same
heuristics in both systems. Improve the heuristics so that these
procedures will work with a minimum number of environment bindings.

1997-11-11 Chris Hanson <[email protected]>

* runtime/ntprm.scm[1.14], runtime/ntprm.scm[1.13],
runtime/os2prm.scm[1.33]:
Signal error when unable to determine user name or home directory.

* runtime/dospth.scm[1.37], runtime/unxpth.scm[14.24]:
Reverse earlier decision: ignore errors that occur with "$" and "~"
syntax in pathnames.

1997-11-06 Chris Hanson <[email protected]>

* edwin/sendmail.scm[1.40]:
Fix typo.

* edwin/sendmail.scm[1.39]:
Eliminate compiler warnings.

* edwin/sendmail.scm[1.38]:
Place BCC field after any CC fields.

1997-11-04 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.214], edwin/sendmail.scm[1.37]:
Implement direct SMTP mail transmission. This is for Windows systems,
which don't have a sendmail daemon, but it can be used on any system
that supports sockets.

* edwin/nntp.scm[1.16], edwin/utils.scm[1.42]:
Define SUBSTRING->NONNEGATIVE-INTEGER.

* edwin/utils.scm[1.41]:
Eliminate old and incompatible definition of READ-LINE.

1997-11-01 Chris Hanson <[email protected]>

* edwin/nntp.scm[1.15]:
Use newly-extended OPEN-TCP-STREAM-SOCKET.

* runtime/socket.scm[1.11], runtime/socket.scm[1.10]:
Change OPEN-TCP-STREAM-SOCKET and OPEN-UNIX-STREAM-SOCKET to return
one port instead of two, and to allow optional arguments to specify
the buffer size and line translation. Increase the default buffer
size to 4096 bytes.

* runtime/io.scm[14.51]:
Change default line translation for TCP stream sockets. These almost
always use CR/LF, regardless of the operating system.

* microcode/prosio.c[1.16]:
Fix to match change in "osio.h".

* edwin/dosfile.scm[1.13], edwin/unix.scm[1.80]:
OS/HOSTNAME now defined in runtime system.

* runtime/runtime.pkg[14.288], runtime/socket.scm[1.9]:
Add new procedure OS/HOSTNAME.

* microcode/ntapi.h[1.8], microcode/ntsock.c[1.2],
microcode/os2api.h[1.10], microcode/os2sock.c[1.5],
microcode/os2sock.c[1.4], microcode/pruxsock.c[1.14],
microcode/pruxsock.c[1.13], microcode/pruxsock.c[1.12],
microcode/uxsock.c[1.16], microcode/uxsock.c[1.15],
microcode/uxsock.h[1.6]:
Add new primitives GET-HOST-NAME and CANONICAL-HOST-NAME.

1997-10-31 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.213], edwin/sendmail.scm[1.36]:
Add generalized mechanism for formation of mail return address. The
new mechanism matches that of Emacs.

1997-10-26 Chris Hanson <[email protected]>

* microcode/ntfs.c[1.18]:
Partially undo last change. Time-stamp problem is more complicated
than I originally thought.

* microcode/ntfs.c[1.17], microcode/ntfs.h[1.2],
microcode/prntfs.c[1.14]:
Change method used to get file information. It turns out that
GetFileInformationByHandle is returning incorrect time stamps for
files on a Samba filesystem, but FindFirstFile returns correct time
stamps in the same circumstance. This discrepancy becomes apparent
when switching between daylight-savings and standard time.

* microcode/ntutl/makefile.wcc[1.11]:
Add socket and gdbm support for Win32.

* microcode/ntapi.h[1.7], microcode/nttop.c[1.24],
microcode/pruxsock.c[1.11]:
Add socket support for Win32.

* edwin/dirw32.scm[1.2], edwin/dos.scm[1.45], edwin/dosfile.scm[1.12],
edwin/os2.scm[1.41]:
Add support for compressed and encrypted files.

1997-10-25 Chris Hanson <[email protected]>

* microcode/ntutl/makefile.wcc[1.10]:
Add support for Blowfish and MD5.

* microcode/ntio.c[1.19], microcode/ntio.h[1.10],
microcode/osio.h[1.13]:
Add ability to handle named pipes. This should be all that is
necessary to manage the client side of a named pipe.

* microcode/ntproc.c[1.5]:
Fix problem with previous change. Must explicitly close the handle
copies that are passed to the subprocess. Otherwise the pipe won't be
deleted at the appropriate time, and PeekNamedPipe won't be able to
tell when the child closes its write handle.

* microcode/ntapi.h[1.6], microcode/ntproc.c[1.4]:
Fix method used to pass stdio handles to a subprocess. Method used by
Emacs, and recommended in (some parts of) the M$ documentation,
involves side-effects to Scheme's stdio handles. Better method is to
use the STARTUPINFO datastructure to tell CreateProcess what handles
to use -- no side-effects.

1997-10-24 Chris Hanson <[email protected]>

* microcode/ntfile.c[1.11], microcode/ntio.c[1.18],
microcode/ntio.h[1.9], microcode/nttty.c[1.7],
microcode/prntio.c[1.8]:
* Change channel data structure. Now, instead of being tagged with a
"type", it is tagged with a "class". The "class" has associated
operations, so that basic channel operations such as reading and
writing are generic. This change allows the code to be modularized
a bit better, and will facilitate the introduction of sockets.

* Eliminate the procedure NT_pipe_channel_available, replacing it with
the generic procedure NT_channel_n_read.

* Eliminate references to long-obsolete "console" stuff.

* Change file-pointer positioning code to use SetFilePointer rather
than __llseek.

* Don't try to signal an error if MsgWaitForMultipleObjects returns an
unexpected answer -- only if it returns WAIT_FAILED. We are only
using it as a mechanism for blocking.

* Make cosmetic changes, eliminating unnecessary instances of "DEFUN"
and the like. These were introduced for unix, because there were
non-ANSI compilers at that time. On NT, all compilers are ANSI.

* microcode/ntproc.c[1.3]:
In OS_process_wait, replace use of Sleep and WaitForSingleObject with
MsgWaitForMultipleObjects, so that the procedure responds immediately
whenever anything interesting happens.

* microcode/ntproc.c[1.2]:
Fix bugs in code that terminates a subprocess. Make sure that
subprocess handles are closed at the appropriate times.

* runtime/process.scm[1.20]:
When killing a subprocess on NT, close our end of the channels talking
to the subprocess. It turns out that some processes don't close
properly until this is done.

1997-10-22 Stephen Adams <[email protected]>

* compiler/machines/i386/lapopt.scm[1.3]:
Implemented a pattern based peephole optimizer.

Main improvements:

1. every CONS-[MULTI]CLOSURE saves one instruction
2. most funcalls save one stack access
3. fixnum arithmetic (plus and minus constants)
4. fixnum case of generic add/subtract constant
5. fixnum bitwise operations with constants (and/or/not)

1 and 2 give about 5% on closure/funcall heavy code.

3-5 are improvements made possible by the screwy fixnum tag.
`Natural' fixnum tags would make them obsolete (but some of the
rewrites are as good). 5 improves hash table operations up to 10% due
to how `flags' are implemented.

1997-10-22 Chris Hanson <[email protected]>

* runtime/os2prm.scm[1.32]:
Fix typo in previous change.

* runtime/os2prm.scm[1.31]:
Change OS/MAKE-SUBPROCESS to use new OS-specific primitive.

* microcode/os2proc.c[1.5], microcode/pros2io.c[1.7]:
Fix bugs from most recent changes.

* runtime/unxprm.scm[1.48]:
Use new unix-specific primitive to start subprocesses.

* microcode/uxproc.c[1.22]:
Eliminate compiler warnings.

* microcode/pruxio.c[1.6], microcode/unxutl/Attic/ymkfile[1.92]:
Add missing include.

* microcode/nt.h[1.7], microcode/ntapi.h[1.5], microcode/nttop.c[1.23],
microcode/ntutl/makefile.wcc[1.9], microcode/prosio.c[1.15],
microcode/uxproc.h[1.5], microcode/version.h[11.159]:
Implement subprocess support under NT. Requires runtime 14.174 or
later.

* microcode/prntio.c[1.7]:
Extensive reworking of the "select" interface, so that it can work
with pipes. We no longer use the NT API calls, since they don't work
at all with pipes; instead we use simpler tests and depend on the
regular arrival of messages to get us out of the blocking state to
poll the other input channels. Regular message delivery is guaranteed
by the asynchronous timer thread.

* microcode/os2proc.c[1.4], microcode/osproc.h[1.9],
microcode/pros2io.c[1.6], microcode/pruxio.c[1.5],
microcode/uxio.c[1.41], microcode/uxproc.c[1.21]:
Deprecate operating-system-independent interface OS_make_subprocess.
New interface is OS-specific, moving pecularities (e.g. converting
unix-style argument vector to OS/2-style command line) into the
runtime system. New OS-independent interface
OS_process_any_status_change.

* microcode/ntio.c[1.17], microcode/ntio.h[1.8]:
Add code to create anonymous pipes, to determine how many characters
are in the pipe given the read end of the pipe, and to implement
non-blocking mode when reading a pipe. Fix OS_channel_write to
generate correct error messages.

* microcode/prosproc.c[1.17]:
Change PROCESS-ID primitive to assume that the ID is unsigned.

* microcode/Attic/posixtyp.h[1.14]:
Define reasonable (unsigned) type for pid_t under NT.

* microcode/option.c[1.44]:
Eliminate compiler warning.

* runtime/ntprm.scm[1.12], runtime/version.scm[14.174]:
Changes to support subprocesses under NT. Requires microcode version
11.159 or later.

* runtime/os2prm.scm[1.30], runtime/process.scm[1.19],
runtime/unxprm.scm[1.47]:
Change MAKE-SUBPROCESS to define new interface to allow OS-specific
code to do the work of starting the subprocess.

* edwin/edwin.ldr[1.60], edwin/edwin.pkg[1.212],
edwin/loadef.scm[1.32], edwin/make.scm[3.92]:
Use real subprocess support for NT.

* edwin/dosfile.scm[1.11]:
Use COMSPEC environment variable to determine shell file name if SHELL
is not defined.

* edwin/filcom.scm[1.193]:
Change test used to decide whether an unreadable file exists. The
procedure FILE-EXISTS? gives the wrong answer when the file is a
symbolic link that points to a non-existent file.

1997-10-18 Chris Hanson <[email protected]>

* microcode/ntutl/scheme32.c[1.16]:
Add code to synchronize the shutdown of the asyncronous timer thread
with the deallocation of the associated state. Otherwise, the race
condition causes occasional GPFs when exiting Scheme.

1997-10-17 Stephen Adams <[email protected]>

* compiler/rtlbase/rtlcon.scm[4.29]:
Changed consing code to compute the tagged pointer after storing the
elements. This reduces register pressure across the consing sequence.
Rearranged consing expression to share a common algorithm, eliminating
80 lines of code.

* compiler/machines/i386/rules3.scm[1.29]:
Added some comments.

* compiler/machines/i386/rules3.scm[1.28]:
Changed the instruction sequence for procedure return (and computed
jump). The code for clearing the type code from a continuation now
loads the value into a register instead of modifying it in-place on
the stack.

I have left the code using an indirect jump. An alternative is to
push the value back on the stack and do a RET. The indirect jump
seems faster, especially when returning to the same address as the
previous jump, but the branch prediction mechanisms for RET and JMP
seem quite different.

Speeds up the modified Gabriel Benchmark Suite (/scheme/8.0/src/bench)
by 10% overall! I guess this is because the Pentium Pro really
doesn't like the old read-modify-write instruction.

Test Old New Ratio
ctak 11.59 11.54 0.996
conform 0.62 0.50 0.806
traverse 1.57 0.92 0.586
takl 0.23 0.20 0.870
peval 0.40 0.35 0.875
browse 0.59 0.56 0.949
tak 0.28 0.25 0.893
wttree 1.61 1.49 0.925
deriv 0.34 0.29 0.853
boyer 0.47 0.42 0.894
div 0.42 0.39 0.929
dderiv 0.44 0.38 0.864
cpstak 0.42 0.41 0.976
matmul1 0.27 0.27 1.000
fib 0.68 0.55 0.809
fcomp 0.61 0.54 0.885
triangle 2.89 2.36 0.817
puzzle 0.47 0.47 1.000
matmul2 0.66 0.69 1.045
destruct 0.28 0.28 1.000
~a.mean - - 0.899
~g.mean - - 0.892

1997-10-15 Stephen Adams <[email protected]>

* compiler/rtlgen/opncod.scm[4.66], runtime/char.scm[14.7],
runtime/record.scm[1.27], runtime/vector.scm[14.11],
sf/gconst.scm[4.22], sf/usiexp.scm[4.38]:
Moved open-coding of VECTOR?, %RECORD? and CHAR? from SF to
open-coders in compiler.

* microcode/char.c[9.32]:
Fix typo.

* microcode/char.c[9.31]:
Added primitive CHAR?

* microcode/vector.c[9.38]:
Added primitives VECTOR? and %RECORD?

1997-10-14 Stephen Adams <[email protected]>

* compiler/rtlgen/opncod.scm[4.65]:
Added open-coding for MAKE-CELL.

1997-10-10 Stephen Adams <[email protected]>

* compiler/machines/i386/dassm1.scm[1.8],
compiler/machines/i386/dassm2.scm[1.8]:
Improved disassembly output:

- New comments to the right of LAP code, mostly the address of @pco
branches so you can see where it is jumping.

- correctly decodes the word field after a

(call (entry short-primitive-apply))

rather than trying to disassemble the offset as instructions and
getting out of sync with the subsequent instructions.

1997-10-07 Stephen Adams <[email protected]>

* pcsample/Makefile[1.2]:
use `cp -p' to preserve file times.

* swat/Makefile[1.4], swat/Makefile[1.3]:
Use `cp -p' to preserve file times.

* runtime/numpar.scm[14.16]:
Typo in previous change.

* runtime/numpar.scm[14.15]:
Fixed so that "1/pivot" is rejected as a number, rather than dividing
by zero. Change: divide only if there is at least one denominator
digit.

This is not a good fix, but I need it now for some existing code. The
parser ought to be restructured not to compute the real part until it
is known that the imaginary part is valid, e.g.

(string->number "1/2+3") => #F
(string->number "1/0+3") => error
(string->number "1/0-transition") => error

There is a similar problem with exponent calculation:

(string->number "1e9999e1") => error
(string->number "1e99999999e1") => `hangs' in bignum primitives

Of course, the difficulty with these non-numbers is probably the
reason behind R4RS's restriction on valid identifiers. That is pretty
feeble, since I don't recall R4RS saying that STRING->NUMBER is
allowed to signal an error. Note that the current code would work
fine in a lazy language, so a few DELAYs and FORCEs might be the most
elegant fix (and OK effciency since FORCE is now compiled.)

1997-10-05 Stephen Adams <[email protected]>

* pcsample/pcsample.c[1.5]:
Changed compuation of pc_in_C: with dynamically loaded libraries,
there is no guarantee that valid C addressed are bounded above by
_etext.

1997-10-03 Chris Hanson <[email protected]>

* runtime/string.scm[14.16]:
Fix typo.

* edwin/schmod.scm[1.40]:
Fix typo in previous change.

1997-10-02 Stephen Adams <[email protected]>

* pcsample/pcs.cbf[1.2]:
Fix typo in instructions.

* microcode/s/Attic/linux.h[1.13]:
Added -export-dynamic to the LD switches so that SWAT (and other
dynamic libraries) can load.

* swat/scheme/tk-mit.scm[1.4]:
Changed %STRING-APPEND to (APPLY STRING-APPEND ...) because someone
removed %STRING-APPEND from the system.

* runtime/string.scm[14.15]:
Fixed copyright date and Package: comment.

* compiler/base/toplev.scm[4.54]:
Tweak output for RTL and LAP files to include the pretty-printed
SCode. In LAP files, make RTL comments more terse by printing them
with ";;" rather than "(comment (rtl"

1997-10-02 Chris Hanson <[email protected]>

* edwin/schmod.scm[1.39]:
Change M-A to work better with parameter lists containing uninterned
symbols.

1997-09-30 Chris Hanson <[email protected]>

* edwin/snr.scm[1.40]:
Fix bug: marked messages that had been deleted from the server were
remaining marked after downloading of message bodies.

1997-09-26 Stephen Adams <[email protected]>

* win32/graphics.scm[1.13], win32/win32.pkg[1.10]:
The following change in how WIN32 graphics devices are flushed gives
non-flickering update almost like double-buffering for programs which
have to draw multiple frames from scratch.

If graphics buffering is enabled, then a GRAPHICS-FLUSH operation
comes from the user's program. The change is to synchronously redraw
the screen in this (i.e. buffered+flush) case. Subsequent operations
can clear and draw without an asynchronous redraw operation copying
the subsequent partial image to the screen.

This is not quite double-buffering since forced redisplay during the
buffered drawing (for example, uncovering part of the window) will
cause the partly draw backing bitmap to be copied to the screen.

User programs with buffering and frequent explicit flushes are likely
to be slower.

1997-08-24 Chris Hanson <[email protected]>

* microcode/ntapi.h[1.4], microcode/ntio.c[1.16]:
Fix bug: low-level file reading code was occasionally signalling
errors for no apparent reason. The cause: the ReadFile API can return
an error indication when it is called at end-of-file. However, in
ONLY this case, the returned "bytesRead" value is zero.

* microcode/nttop.c[1.22]:
Trim any trailing end-of-line from system-call error strings.

1997-08-23 Chris Hanson <[email protected]>

* edwin/snr.scm[1.39]:
Clip ranges immediately after a group is constructed, in order to
eliminate old markings.

* edwin/filcom.scm[1.192]:
Work around problem in NT: prompting for a directory with a wildcard
was causing an error. On unix, this works because FILE-DIRECTORY?
accepts such specifications as arguments -- but on NT, it doesn't.

* microcode/ntapi.h[1.3], microcode/ntfs.c[1.16],
microcode/prntfs.c[1.13]:
Eliminate several calls to the C library in favor of native Win32 API
calls. This was started to work around a bug in the Watcom C library,
but is generally desirable to eliminate unnecessary dependencies on
the C library.

The bug that started this is that FILE-DIRECTORY? returned #F on
directories with the FILE_ATTRIBUTE_ARCHIVE bit set.

* microcode/ntutl/makefile.wcc[1.8]:
Add new file "ntfs.h".

1997-08-22 Chris Hanson <[email protected]>

* microcode/ntfile.c[1.10]:
Eliminate conditionalization on OS_open_append_file; this procedure
compiles and runs just fine and probably should not have been
conditionalized in the first place.

1997-08-08 Chris Hanson <[email protected]>

* runtime/parse.scm[14.28], runtime/runtime.pkg[14.287]:
Add switch to disable canonicalization of symbol case by reader.

1997-08-03 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.88]:
Fix bug in Scheme mode C-c C-s that could cause already-deleted
buffers to be selected. I don't understand why these buffers are
still in this list because there is code to remove them.

1997-08-02 Chris Hanson <[email protected]>

* edwin/info.scm[1.125]:
Don't lose if directories in info-directory-list are lacking the
trailing slash.

1997-07-31 Stephen Adams <[email protected]>

* sf/usiexp.scm[4.37]:
Fix bug in last change - apply STRING->SYMBOL to the string, not the
`constant' expression containing the string.

* sf/usiexp.scm[4.36]:
7.4: Fixed STRING->SYMBOL expansion to test that it's argument is a
constant whose value is a string rather than applying STRING?
directly (which has been broken since it was added in 1992.) Fixed
INTERN likewise.

8.0: treat INTERN similarly to STRING->SYMBOL: Add INTERN as a
integrated to a global reference. Added type rule and constant
folding rule for intern. (This is better than constant folding at
integration time since it deals with constant propagation.)

1997-07-28 Stephen Adams <[email protected]>

* runtime/dragon4.scm[1.13]:
The previous change to make the output with '(ABSOLUTE <N> ...)
produce the correct number of digits for numbers with no significant
digits introduced problems with NORMAL rounded and ENGINEERING
formatted output. All NORMAL rounded output for numbers of the form
ddd.ff were being output as "000.". Some numbers formatted with
'(ABSOLUTE <N> ENGINEERING) looked like "000e-3".

This has been fixed by

(1) setting the cutoff for NORMAL rounded numbers to be a value that
will allow the digit production to run to completion
(flo:significand-digits - 2).

(2) adding special cases in the output procedures to deal with empty
digit strings.

Currently:

Zero still prints as "0." by the initial sign/infinity/NaN dispatch.

Rounded output in NORMAL style for numbers with no significant digits
prints as "0." or "-0.".

Rounded output in SCIENTIFIC / ENGINEERING style for numbers with no
significant digits prints as "0eE" or "-0eE", e.g. "-0e3".

It might be preferable to keep "0." distinguished for zero, but I'm
not sure how for NORMAL formatted output. (To my eyes, "0.0" looks
more `zero' than "0.", and ".0" implies a small magnitude.)

A small regression test has been appended in a comment to help avoid
problems in future. Feel free to add tests.

1997-07-26 Chris Hanson <[email protected]>

* runtime/dragon4.scm[1.12], runtime/runtime.pkg[14.286]:
Provide the ability for a user to specify how the digits generated by
the flonum printer are converted into a string.

* runtime/dragon4.scm[1.11]:
Fix another bug in the Dragon4 code (the bug exists in the original
paper). The bug caused the following behavior:

(fluid-let ((flonum-unparser-cutoff '(absolute 2 normal)))
(number->string 0.005))
;Value 3: ".01"

(fluid-let ((flonum-unparser-cutoff '(absolute 2 normal)))
(number->string 0.00499))
;Value 4: ".005"

The problem is that in the second case the trailing digit "5" should
not be generated. The fix works by preventing any digits being output
by the digit-generation loop when the first digit to be output would
be to the right of the cutoff point.

1997-07-25 Chris Hanson <[email protected]>

* edwin/filcom.scm[1.191]:
Reimplement encrypt-file and decrypt-file to eliminate the temporary
storage of the plaintext in a buffer; this is both a security risk and
an unnecessary limitation on the size of the file. Also, modify the
commands to provide more flexible handling of filenames. Previously,
only the input file could be specified; now both the input and the
output can be specified, and the output is defaulted to a useful
value.

1997-07-21 Chris Hanson <[email protected]>

* edwin/filcom.scm[1.190]:
Fix bug in AFTER-FIND-FILE: code was assuming that every buffer had an
AUTO-SAVE-PATHNAME.

Add new commands to encrypt and decrypt files using blowfish.

* edwin/input.scm[1.99], edwin/prompt.scm[1.169]:
Add optional argument to KEYBOARD-READ which, if true, says that the
key being read should not be recorded in the keyboard history. This
option is used to prevent passwords from being stored in the history.

* edwin/vc.scm[1.27]:
Fix bug: VC was causing a local binding of vc-mode-line-status to
appear in every buffer, when it should only be bound in buffers under
version control.

* edwin/autosv.scm[1.32]:
Fix bug: auto-save initialization was not looking for a local binding
of the variable auto-save-default.

* edwin/fileio.scm[1.143]:
Don't use alternate pathnames when writing files; only when reading.

1997-07-20 Chris Hanson <[email protected]>

* runtime/numpar.scm[14.14]:
Fix bug: end index in substring is exclusive, not inclusive.
Repaginate.

1997-07-18 Stephen Adams <[email protected]>

* cref/redpkg.scm[1.10]:
Changed error for non-root access to a warning, so at least we can get
a .crf file output.

* microcode/fixnum.c[9.43]:
Changed FIXNUM->FLONUM back to using cast.

I don't understand why the last change was made -- the cast should
have worked, since arg_fixnum() returns a long. Perhaps I blew it and
tested it on 8.0 and just happen to have fixed the real problem at
about the same time.

1997-07-16 Stephen Adams <[email protected]>

* microcode/uxtrap.c[1.27]:
Conditionalize fixnum dependency for allow single file for 7.4 and 8.0

* microcode/purify.c[9.57]:
Changed TC_TRUE to TC_CONSTANT in comment

* microcode/const.h[9.44], microcode/fasl.h[9.37],
microcode/gctype.c[9.33]:
Changed TC_TRUE to TC_CONSTANT

* microcode/lookup.h[9.50]:
Changed TC_TRUE to TC_CONSTANT.

* microcode/fasload.c[9.83]:
Conditionalized EMPTY_LIST_VALUE code.

* microcode/debug.c[9.49], microcode/gccode.h[9.55],
microcode/interp.c[9.88], microcode/load.c[9.38],
microcode/types.h[9.36]:
A hack: Introduced macro

case_TC_FIXNUMs

for generating case labels for selecting fixnums, whether there are
one or two typecodes. This tidies up the support in the 8.0 sources
for eitehr case, and allows more files to be shared between 7.4 and
8.0

* microcode/boot.c[9.99]:
Conditionalized EMPTY_LIST initialization for code sharing between 7.4 and 8.0.

1997-07-15 Stephen Adams <[email protected]>

* microcode/types.h[9.35]:
Moved GLOBAL_ENV to sdata.h.

* microcode/boot.c[9.98]:
Merged in changes to make 7.4 and 8.0 more alike.

* microcode/pruxenv.c[1.17]:
Fixed the trap debugging primitive
INSTRUCTION-ADDRESS->COMPILED-CODE-BLOCK to handle integer arguments
correctly.

* microcode/object.h[9.47]:
Add ADDRESS_HEAP_P to match existing predicate ADDRESS_CONSTANT_P

* microcode/memmag.c[9.64]:
file: purify.c
file: bchmmg.c
file: memmag.c

Define EMPTY_WEAK_CHAIN for use in terminating the weak chain rather
that EMPTY_LIST.

This allows purify.c, bchmmg.c and memmag.c to be shared by 7.4 and 8.0.

* microcode/purify.c[9.56]:
Eliminate NT compiler warning.

* sf/object.scm[4.8]:
Update copyright date.

* sf/toplev.scm[4.14]:
Small changes to allow butils.scm to be shared between 7.4 and 8.0

* runtime/scomb.scm[14.15]:
Merge 7.4 and 8.0 versions on scomb.scm

Changed UNDEFINED-CONDITIONAL-BRANCH to be UNSPECIFIC directly, rather
than trying to reconstruct the same machine-dependent bit-pattern.

* runtime/infutl.scm[1.59], runtime/runtime.pkg[14.285]:
Change to get rid of minor difference between 7.4 and 8.0 versions of
unpars.scm:

Renamed
COMPILED-ENTRY/FILENAME -> COMPILED-ENTRY/FILENAME-AND-INDEX
COMPILED-CODE-BLOCK/FILENAME -> COMPILED-CODE-BLOCK/FILENAME-AND-INDEX

* compiler/machines/i386/dassm1.scm[1.7], sf/gconst.scm[4.21]:
Merged 7.4 and 8.0 udata.scm files.
(Main benefit is the much faster compiled version of FORCE).

Removed FORCE from integrated primitives.

Added COMPILED-CODE-BLOCK/MARKED-START which returns the index that
COMPILED-CODE-BLOCK/CONSTANTS-START used to.
COMPILED-CODE-BLOCK/CONSTANTS-START now parses over the linkage
section.

Changed i386 disassembler to use COMPILED-CODE-BLOCK/MARKED-START.

* runtime/runtime.pkg[14.284]:
Merged the 7.4 and 8.0 versions of string.scm now that INDEX-FIXNUM?
is open-coded by both compilers. Moved string.scm into a new package
(runtime string).

* microcode/fixnum.c[9.42]:
Use FIXNUM_TO_DOUBLE rather than a cast. Casting a fixnum to a double
fortuitously worked under 8.0 with `native' fixnum tags but didn't
work under 7.4.

* compiler/machines/C/rules2.scm[1.2],
compiler/machines/i386/rules2.scm[1.8],
compiler/machines/spectrum/rules2.scm[4.14],
compiler/rtlbase/rtlcon.scm[4.28], compiler/rtlgen/opncod.scm[4.64],
compiler/rtlopt/rcse1.scm[4.23], compiler/rtlopt/rinvex.scm[1.8],
microcode/liarc.h[1.13]:
Added open-coding for the primitive INDEX-FIXNUM?

* sf/gconst.scm[4.20]:
Added INDEX-FIXNUM? as integrated constant.

1997-07-14 Stephen Adams <[email protected]>

* microcode/wabbit.c[1.6]:
Made previos chaneg work under 7.4 and 8.0

* microcode/wabbit.c[1.5]:
Use EMPTY_WEAK_CHAIN for weak pair chain instead of EMPTY_LIST.

1997-07-13 Chris Hanson <[email protected]>

* runtime/make.scm[14.60]:
Initialize number parser.

1997-07-11 Stephen Adams <[email protected]>

* runtime/arith.scm[1.44]:
Changed INT:->INEXACT to use INTEGER->FLONUM and FIXNUM->FLONUM, now
that INTEGER->FLONUM has been fixed to work correctly. Note that the
8.0 compiler can open-code FIXNUM->FLONUM.

1997-07-10 Stephen Adams <[email protected]>

* runtime/numpar.scm[14.13]:
Bug fixes:

. "1/" returns #F instead of signalling divide by zero.

. "1.2345e-306" and "1e-400" with FLONUM-PARSER-FAST? true no longer
signal arithmetic errors.

. STRING->NUMBER and SUBSTRING->NUMBER now check their arguments

Other changes: FINISH-REAL now exploits the fact that some integers
have exact floating point representations and so flonum arithmetic can
be used to compute the correct result. Note that to maintain
correctness, i*10^-e must be calculated as i/10^e. The results are a
modest improvement on free-formatted random flonums (typically 16
digit) in the range 1e-7 to 1e35:

Times for 10000 flonums generated by (random range)

range 1e-100 1e-10 1e-5 1. 1e5 1e10 1e35 1e40
old 10180 8200 8210 7490 5610 3970 3990 4030
new 10280 8350 4690 4390 3930 3230 3180 4170

With FLONUM-PARSER-FAST? true, using the division trick gives better
error rates over a larger range. Number of errors in 10000 random
flonums

range 1e-20 1e-10 1e-6 1. 1e10 1e20 1e35 1e40
old 3573 2400 3309 2798 3025 685 722 2730
new 2594 2778 1907 1010 761 685 772 2730

1997-07-10 Chris Hanson <[email protected]>

* sos/instance.scm[1.7]:
Fix a couple of typos.

1997-07-09 Stephen Adams <[email protected]>

* runtime/udata.scm[14.18]:
Implemented FORCE as a compiled procedure. SF no longer integrates
FORCE as a primitive procedure.

There is a minor bootstrapping problem with the standard build
scripts since any pre-existing version of SF will integrate the
primitive FORCE, and SF is only run on files that have changed.
A solution is:

1. rebuild the system
2. remove any .bin files that call FORCE
3. rebuild the system using bands produced in step 1.

Timings under Scheme 8.0 on plex:

Test Primitive Compiled
[1] 10370ms 560ms
[2] 180ms 130ms
[3] 440ms 270ms

(let ((nums (list->stream (make-initialized-list 100001 identity-procedure)))
(primes
((access make-prime-numbers-stream (->environment '(runtime stream))))))
(show-time (lambda () (stream-ref nums 100000))) ; [1]
(show-time (lambda () (stream-ref nums 100000))) ; [2]
(show-time (lambda () (stream-ref primes 1000)))) ; [3]

1997-07-08 Stephen Adams <[email protected]>

* microcode/bignum.c[9.46]:
Changed bignum_to_double to produce a correctly rounded result. The
code is a lot hairier since it implements IEEE style round to even,
but it is not much slower than the old `accumulate' loop since it
rarely has to look at more that two or three words.

The new version no longer signals an floating point overflow error on

(INTEGER->FLONUM (- (EXPT 2 1024) 1) #b10)

This means that (INTEGER->FLONUM N #b10) can again be used for computing
EXACT->INEXACT on exact integers, which should be 5-15x faster.

There were several places which has a loop to find the bit position of
the most significant bit in a word. This code has been converted into
a macro, and tweaked to be a bit faster. Presumably some machines
have this operation as an instruction.

* microcode/artutl.c[1.15]:
Change integer_length_in_bits to return a fixnum if possible.

* runtime/arith.scm[1.43]:
Speed up RATIO->FLONUM and INT:->INEXACT by using (INTEGER->FLONUM N
#b11) when N is small enough that it has an `exact' flonum
representation. A prior log message comments on this, but the code
does not seem to take advantage.

DISCUSSION:

Question: why is (INT:->INEXACT N) not simply (INTEGER->FLONUM N #b10) ?

(EXACT->INEXACT (expt 2 3000)) used to fail in INTEGER->FLONUM,
but now it returns MAXDOUBLE (due to ldexp), but an Infinity or an error
would seem better.

R4RS says: If an exact argument has no reasonably close inexact
equivalent, the a violation of an implementation restriction may be
reported.

I would read this as NOT returning MAXDOUBLE as, say, 2^3000 is not
`reasonably close' to any FP number.

A previous log entry says INTEGER->FLONUM does not round reliably.
This is because bignum_to_double in "bignum.c" accumulates, which may
cause error due to intermediate rounding.

Perhaps bignum_to_double should be changed to extract the top 53 bits
and explicitly calculate the exponent; another test would be required
in place of bignum_fits_in_word_p, which does not (and should not)
understand rounding carry. Currently, calling bignum_to_double on

(- (expt 2 1024) 1)

signals a floating point overflow or returns an infinity depending on
which FPU exceptions are enabled.

If bignum_to_double was fixed it could be a lot faster than all the
current bignum arithmetic.

* microcode/fixnum.c[9.41]:
Fixed thinko in FIXNUM->FLONUM.

* runtime/arith.scm[1.42]:
Changes in INT:->STRING to improve performance. 30% faster for huge
bignums (10^1000), up to 2x-3x faster for small bignums (up to
10^100), slightly faster for fixnums.

. Use a local version of DIGIT->CHAR since we don't need to check the
radix.

. PRINT-FIXNUM modified to be useful for generating digits in the
middle of a number.

. PRINT-MEDIUM and PRINT-LARGE work in units of several digits, the
length of a unit pre-computed so that a unit can be printed using
fixnum arithmetic.

. PRINT-MEDIUM chops off groups of digits that can be printed by
PRINT-FIXNUM. The microcode primitive LISTIFY-BIGNUM is no longer
used.

. PRINT-LARGE has a special check to try to avoid the last multiply
in building the power stack (which is asymptotically 2/3 of the
cost of building the stack). The recursion termination check is
generalized to also catch sequences of digits with enough leading
zeroes to be formatted by PRINT-FIXNUM (this can double the speed
of printing numbers with many zeros).

1997-07-07 Stephen Adams <[email protected]>

* runtime/arith.scm[1.41]:
Changes in INT:->STRING to improve performance. 30% faster for huge
bignums (10^1000), up to 2x-3x faster for small bignums (up to
10^100), slightly faster for fixnums.

. Use a local version of DIGIT->CHAR since we don't need to check the
radix.

. PRINT-FIXNUM modified to be useful for generating digits in the
middle of a number.

. PRINT-MEDIUM and PRINT-LARGE work in units of several digits, the
length of a unit pre-computed so that a unit can be printed using
fixnum arithmetic.

. PRINT-MEDIUM chops off groups of digits that can be printed by
PRINT-FIXNUM. The microcode primitive LISTIFY-BIGNUM is no longer
used.

. PRINT-LARGE has a special check to try to avoid the last multiply
in building the power stack (which is asymptotically 2/3 of the
cost of building the stack). The recursion termination check is
generalized to also catch sequences of digits with enough leading
zeroes to be formatted by PRINT-FIXNUM (this can double the speed
of printing numbers with many zeros).

1997-07-04 Stephen Adams <[email protected]>

* microcode/bignum.c[9.45]:
In bignum_remainder, replaced special case for remainder by `1' with a
special case for remainder by small power of two.

1997-07-03 Stephen Adams <[email protected]>

* runtime/dragon4.scm[1.10]:
Performance enhancements:

1. Changed DRAGON4-FIXUP to use fast scaling similar to described in
Burger and Dybvig (reference in file). This makes an order of
magnitude difference for unparsing flonums with large exponents.

2. Changed DRAGON4 to pass exponent to DRAGON4-FIXUP for scaling
estimate.

3. Systematically replaced calls to generic operators with calls to
int: variants (and rat:expt). The vast majority of operations are
on bignums. Gives a gain of about 20%.

Timings (Non-GC runtime) in msec for 1000 calls on 200Mhz Pentium Pro.

Example Number Original Fast Scaling and INT:ops

3.141592653589793 840 820 580
1022. 320 300 230
1.234e300 4870 490 400
1.23456e-300 7130 680 540

It is still pretty sad that you can format only a few thousand numbers
per second.

PC-sampling shows that most of the time is spent as follows:

(27% primitive 253 "INTEGER-MULTIPLY")
(24% primitive 200 "GARBAGE-COLLECT")
(24% primitive 248 "INTEGER-DIVIDE")
(5%. primitive 260 "INTEGER-SUBTRACT")

1997-07-03 Chris Hanson <[email protected]>

* edwin/snr.scm[1.38]:
Make sure that RMAIL variables are initialized before they are used.

1997-06-27 Chris Hanson <[email protected]>

* sos/method.scm[1.10]:
Fix bug introduced by last change.

* microcode/ux.h[1.68]:
Toe the current ideological line.

1997-06-26 Stephen Adams <[email protected]>

* runtime/string.scm[14.14], runtime/string.scm[14.13]:
Fixed a bug in argument checking SUBSTRING. Introduced
GUARANTEE-SUBSTRING and edited other procedures to use it.

1997-06-26 Chris Hanson <[email protected]>

* microcode/nttop.c[1.21]:
Don't use the external Scheme DLL any more. This is important for the
moment as I have not yet figured out how to make working DLLs with the
new Watcom compiler. However, the Scheme DLL probably doesn't matter
any more as we no longer care about Windows 3.1.

* microcode/nttrap.c[1.14]:
Watcom 11: use __try/__except for new version of Watcom compiler, as
it is now fixed and works properly.

* microcode/bintopsb.c[9.67], microcode/hooks.c[9.57],
microcode/lookup.c[9.56], microcode/ntenv.c[1.16],
microcode/ntfs.c[1.15], microcode/ntgui.c[1.20],
microcode/ntsys.c[1.8], microcode/ntsys.h[1.7],
microcode/utils.c[9.72]:
Watcom 11: eliminate compiler warning.

* microcode/ntutl/makefile.wcc[1.7]:
Watcom 11: various changes.

* microcode/ntutl/scheme32.lnk[1.2]:
Watcom 11: needs kernel and user librarys named explicitly now.

* microcode/ntutl/scheme32.c[1.15]:
Change for Watcom 11: documentation claims that 0 is not a valid value
for the stack-size parameter to beginthreadx.

1997-06-25 Chris Hanson <[email protected]>

* edwin/vc.scm[1.26]:
Change RCS-FIND-DELTA to have an extra argument saying whether or not
to signal an error if there is no such delta. Use this feature to
make VC-NEXT-ACTION do the right thing when it is given a version
number that doesn't exist.

* edwin/rcsparse.scm[1.3]:
Change RCS-FIND-DELTA to have an extra argument saying whether or not
to signal an error if there is no such delta.

* sos/method.scm[1.9]:
Allow computed methods to return concrete methods as well as
procedures, provided that the returned method's specializers are
restrictions of the computed method's specializers.

* sos/slot.scm[1.6]:
Delete accessor slot properties after they are used. This prevents
them from holding on to the generic procedures, and from defining
identical methods for each subclass.

* sos/class.scm[1.8]:
Fix typo.

* sos/sos.pkg[1.7]:
Fix think-o.

* sos/instance.scm[1.6]:
Allow INSTANCE-PREDICATE to take a specializer as an argument rather
than just a class.

* sos/class.scm[1.7]:
Error-check arguments to MAKE-CLASS. Make sure that dispatch tag of
record-type class is correct.

* sos/class.scm[1.6]:
Allow record types to be used in place of classes wherever sensible.

* sos/class.scm[1.5], sos/slot.scm[1.5], sos/sos.pkg[1.6]:
Signal CONDITION-TYPE:NO-SUCH-SLOT when given an invalid slot name.

* runtime/record.scm[1.26], runtime/recslot.scm[1.3],
runtime/runtime.pkg[14.283]:
Add CONDITION-TYPE:NO-SUCH-SLOT and modify record code to signal this
error when given an invalid slot name.

1997-06-24 Chris Hanson <[email protected]>

* runtime/make.scm[14.59], runtime/recslot.scm[1.2],
runtime/runtime.pkg[14.282]:
Modify %RECORD-ACCESSOR to signal an error if the accessed slot is
uninitialized.

1997-06-19 Chris Hanson <[email protected]>

* sos/method.scm[1.8]:
SPECIALIZER=? was not handling the case of mixed arguments properly.

* runtime/defstr.scm[14.31]:
Add option to allow user to specify a different name for the type
descriptor.

* sos/method.scm[1.7], sos/method.scm[1.6], sos/sos.pkg[1.5]:
Eliminate UNION-SPECIALIZER=? and UNION-SPECIALIZER-CLASSES.

* sos/slot.scm[1.4]:
Eliminate unused definition.

* sos/class.scm[1.4], sos/method.scm[1.5], sos/sos.pkg[1.4]:
Add procedure SPECIALIZER-CLASSES.

* sos/class.scm[1.3]:
SUBCLASS? must allow its second argument to be any specializer.

* microcode/ntfile.c[1.9], microcode/ntio.c[1.15],
microcode/ntio.h[1.7]:
Fix bug: microcode was forgetting about file being opened when it ran
out of channel-table entries. This left the file locked until Scheme
was exited.

Additionally, the size of the channel table has been increased, and
the number of allowable handles set to its maximum value.

* microcode/prntfs.c[1.12]:
When trying to get information about a file, if we get permission
denied, try again using the directory reader. Some files, e.g.
"\pagefile.sys", cannot be interrogated in the normal fashion, but are
given in a directory listing. (More quality software design.)

In SET-FILE-TIMES!, temporarily disable the read-only bit if it is
enabled, as this prevents the primitive from completing successfully.

* microcode/ntscreen.c[1.30]:
Ignore the mouse click that activates a window.

1997-06-18 Chris Hanson <[email protected]>

* edwin/snr.scm[1.37]:
Fix two bugs in article-posting code.

* edwin/snr.scm[1.36]:
Make sure that all article ranges are clipped when the group is
updated.

1997-06-17 Chris Hanson <[email protected]>

* sos/slot.scm[1.3], sos/slot.scm[1.2]:
Change slot-option merging code so that INITIAL-VALUE and INITIALIZER
shadow each other properly.

* runtime/blowfish.scm[1.3]:
Add code to compute MD5 checksum for a file; to convert a checksum to
either a number or a hex string; and to encrypt a substring.

* microcode/prbfish.c[1.3]:
Add primitive that accepts input as a substring rather than a string.

* microcode/prmd5.c[1.3]:
Add new primitives to simplify writing code to perform MD5 checksum on
arbitrary-length streams.

1997-06-16 Chris Hanson <[email protected]>

* sos/load.scm[1.3]:
Changes to interface and semantics of INSTANCE-CONSTRUCTOR.

* sos/method.scm[1.4]:
Now that MAKE-METHOD calls INITIALIZE-INSTANCE, it is necessary to
provide a default EMP for INITIALIZE-INSTANCE until the default method
is installed. This is done by means of the runtime system's default
EMP kludge.

* sos/instance.scm[1.5], sos/macros.scm[1.6]:
Extensive revamp of INSTANCE-CONSTRUCTOR. Optional argument now
specifies how many additional arguments the constructor accepts; the
additional arguments are passed to INITIALIZE-INSTANCE. By default,
any number of additional arguments are accepted and passed.

1997-06-15 Chris Hanson <[email protected]>

* sos/macros.scm[1.5]:
Modify the CONSTRUCTOR class option to DEFINE-CLASS to allow it to
specify the CALL-INIT-INSTANCE? argument to INSTANCE-CONSTRUCTOR.

* sos/instance.scm[1.4], sos/method.scm[1.3], sos/sos.pkg[1.3]:
Implement support for INITIAL-VALUE slot keyword. Add new generic
procedure INITIALIZE-INSTANCE, and give INSTANCE-CONSTRUCTOR and
optional boolean argument that, if true, says to call
INITIALIZE-INSTANCE on the instance before it is returned.

* microcode/os2utl/makefile.cmn[1.10]:
Add blowfish and MD5 support.

1997-06-14 Chris Hanson <[email protected]>

* edwin/snr.scm[1.35]:
Fix bug that could cause SEGV when downloading article bodies.

* edwin/comint.scm[1.24]:
Fix typo.

1997-06-13 Chris Hanson <[email protected]>

* microcode/version.h[11.151.1.4]:
Update cmpauxmd/i386.m4 to revision 1.47.

1997-06-12 Chris Hanson <[email protected]>

* runtime/arith.scm[1.40], runtime/runtime.pkg[14.281]:
Add definition for SQUARE.

* sos/macros.scm[1.4]:
Fix bug: when CALL-NEXT-METHOD used in DEFINE-METHOD, the generated
code was using old calling conventions.

* sos/compile.scm[1.2]:
Move COMPILE-FILE into the compiler proper.

* compiler/base/toplev.scm[4.53],
compiler/machines/i386/compiler.pkg[1.23],
compiler/machines/spectrum/compiler.pkg[1.48]:
Add COMPILE-FILE incremental file compilation procedure.

1997-06-11 Chris Hanson <[email protected]>

* sos/macros.scm[1.3]:
Fix bug: predicate not being generated when other class options given.

1997-06-10 Chris Hanson <[email protected]>

* edwin/evlcom.scm[1.53]:
Fix bug: Scheme variable completion was failing in some cases because
the completion code was unable to obtain the correct environment in
which to look up the variables.

1997-06-09 Chris Hanson <[email protected]>

* microcode/prbfish.c[1.2], microcode/prmd5.c[1.2]:
Fix typo.

* edwin/os2.scm[1.40], edwin/unix.scm[1.79]:
Add support for Blowfish.

* runtime/blowfish.scm[1.2]:
Add procedure to test for availability of Blowfish primitives.
Modularize ciphertext-file support.

* runtime/ed-ffi.scm[1.17], runtime/runtime.pkg[14.280]:
Add interfaces to MD5 and Blowfish.

1997-06-06 Chris Hanson <[email protected]>

* microcode/rgxprim.c[1.12]:
Change regular-expression primitives to treat failure-stack overflow
as equivalent to "no match". Also, increase the maximum size of the
failure stack from 1000 to 20000. This is important because it is far
too easy to overflow the stack, the stack-overflow errors cause Edwin
to bomb out. This is a problem because stack-overflow errors can be
caused by user data -- the proximate example being a News message that
bombed out the News reader because it had a header line was too
complicated to match. Better to fail in these situations than to
error.

* microcode/regex.c[1.17]:
Change regular-expression searches to treat failure-stack overflow as
a failure to match, and to continue the search.

* edwin/os2.scm[1.39], edwin/unix.scm[1.78], edwin/unix.scm[1.77]:
Modify encrypted-file support to allow the ".ky" suffix. This is
desirable because mixed-case filenames cause trouble when mapping
between unix and case-insensitive file systems.

1997-06-05 Chris Hanson <[email protected]>

* runtime/record.scm[1.25]:
Fix thinko in SET-RECORD-TYPE-UNPARSER-METHOD!.

1997-06-04 Chris Hanson <[email protected]>

* rcs/mklogs.scm[1.9]:
Add SOS to list of directories needing to be processed.

* sos/class.scm[1.2], sos/instance.scm[1.3], sos/instance.scm[1.2],
sos/sos.pkg[1.2]:
Reimplement INSTANCE-PREDICATE to return a generic procedure. Move
INSTANCE-PREDICATE and INSTANCE-OF? to "instance.scm".

* sos/method.scm[1.2]:
Eliminate references to INSTANCE-PREDICATE.

* sos/macros.scm[1.2]:
Add options allowing DEFINE-CLASS to automatically generate predicate
and constructor procedures. By default, generate a predicate.

* edwin/rmail.scm[1.58]:
Modify undigestifier so that it handles newer digests, e.g. the Debian
mailing-list digestifier.

* sos/load.scm[1.2]:
Add line to startup banner.

1997-06-01 Chris Hanson <[email protected]>

* microcode/uxfs.c[1.13]:
Change Linux file-system-type code to define explicit constants for
many types. The reason is that many of these types are hard to get
from the headers, either due to versioning problems with the header
files, or because the desired definitions are hidden behind kernel
conditionalizations.

1997-05-27 Chris Hanson <[email protected]>

* edwin/snr.scm[1.34], edwin/snr.scm[1.33]:
Fix bug: news server can return #(0 0 0) as server-info for a news
group, indicating that there are no articles on the server. News
reader was expecting the last two numbers to be article numbers, but
zero is not a valid article number.

1997-05-21 Chris Hanson <[email protected]>

* edwin/os2.scm[1.38], edwin/unix.scm[1.76]:
Read and write .KY files as binary rather than text.

* microcode/os2msg.c[1.12]:
Fix some bugs, including an uninitialized-field bug for the QID_FILTER
field, and an ambiguity in the allowable values for the end pointer of
a msg_fifo. Add a QID_LOCK field, and use it to control access to the
QID_SUBQUEUE field. Rearrange the locking slightly to make it more
efficient and directed: the top-level qid_lock is now used only to
mediate the QID_ALLOCATEDP and QID_TWIN fields.

* microcode/os2pm.c[1.31]:
Change error-reporting procedure to eliminate redundant sentences for
fatal errors.

1997-05-19 Chris Hanson <[email protected]>

* runtime/io.scm[14.50], runtime/runtime.pkg[14.279]:
Reimplement CLOSE-ALL-OPEN-FILES to close only file channels, and also
to close the associated port of a file channel rather than the
channel. Implement and export two new procedures: ALL-OPEN-CHANNELS
and CLOSE-ALL-OPEN-CHANNELS.

1997-05-18 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.211], edwin/snr.scm[1.32]:
* Add new command to show the full subject line of an article in a
news-group buffer.

* Add new command to show the full header of an article in a
news-group buffer.

* When first unread article in a group has an associated body, expand
the thread to select that article when the group is opened.

* Change posting mechanism to use "_-_" in message-id to indicate
subject changes, as required by News standard.

* edwin/curren.scm[1.122]:
Change SET-BUFFER-POINT! to change the first window that the buffer is
shown in if it is not the selected buffer.

* edwin/evlcom.scm[1.52]:
Fix bug: STRING-COLUMNS was being called with incorrect arguments.
Apparently this reference was missed when the imaging code was
rewritten.

* edwin/bufcom.scm[1.103], edwin/dired.scm[1.167]:
Implement POP-UP-TEMPORARY-BUFFER, a fairly general mechanism for
popping up temporary buffers. Redefine several old uses of such
buffers to use this new mechanism.

1997-05-17 Chris Hanson <[email protected]>

* microcode/ntscreen.c[1.29], microcode/ntscreen.h[1.15],
microcode/prntio.c[1.6]:
Change NT:MSGWAITFORMULTIPLEOBJECTS to check for messages that were
removed from the input queue and placed on one of the screen queues.
This eliminates a serious bug in Edwin: running an asynchronous
evaluation that did no output would cause Edwin to lock up until the
evaluation completed.

1997-05-15 Chris Hanson <[email protected]>

* win32/graphics.scm[1.12]:
Add ability to specify custom color palette when creating a window.

* runtime/runtime.pkg[14.278], runtime/runtime.pkg[14.277]:
Add X-specific operation to return the visual-info data structures for
a display, and a structure definition for these structures.

* runtime/os2graph.scm[1.13], win32/graphics.scm[1.11]:
Add generic operation to determine the bit-depth of an image
associated with a window.

* runtime/x11graph.scm[1.46]:
Add generic operation to determine the bit-depth of an image
associated with a window. Add X-specific operation to return the
visual-info data structures for a display, and a structure definition
for these structures.

* microcode/x11graph.c[1.38]:
Modify X image procedures to support images with depths greater than 8
bits. Add documentation strings to all of the image primitives.

1997-05-13 Chris Hanson <[email protected]>

* win32/dibutils/dibutils.c[1.3], win32/dibutils/dibutils.h[1.3]:
Add "FAR WINAPI" declarations to the functions exported from this DLL,
so that the Watcom compiler will compile them using the calling
conventions that Scheme is expecting.

1997-05-11 Chris Hanson <[email protected]>

* microcode/os2conio.c[1.9], microcode/os2cthrd.c[1.9],
microcode/os2cthrd.h[1.6], microcode/os2msg.c[1.11],
microcode/os2msg.h[1.14], microcode/os2pmcon.c[1.23]:
Two changes to improve inter-thread message-transmission performance:

1. Eliminate "msg_list_t" type and implement a fifo abstraction that
is powerful enough to support the previous applications of message
lists. This eliminates the calls to malloc and free that were
needed to build the lists, and replaces them by an aggregate,
amortized cost.

2. When transmitting a message for which a receiving thread is
waiting, call DosSleep to give up the rest of the transmitting
thread's time slice, so that the receiving thread will run as soon
as possible.

1997-05-06 Chris Hanson <[email protected]>

* microcode/nttrap.c[1.13]:
Don't use try...except exception handling with Watcom compiler.
Instead use SetUnhandledExceptionFilter.

1997-05-05 Chris Hanson <[email protected]>

* microcode/s/Attic/linux.h[1.12]:
Allow dld support to be disabled.

* microcode/pruxdld.c[1.11]:
Add an option to disable dld support, since the Red Hat Linux we are
running on the action machines doesn't seem to support it, while the
Debian Linux we're running on everything else does.

* microcode/pruxdld.c[1.10]:
Unknown change implemented by adams.

* microcode/cmpauxmd/i386.m4[1.47]:
Fix bug: scheme_to_interface must clear the floating-point register
stack. Otherwise, inexplicable floating-point errors can occur. An
example of such an error can be created by typing `-1e-194' at a
freshly-booted scheme.

The actual problem is somewhat involved. The C compiler assumes that
all of the floating-point registers are empty on the entry to any
procedure. As a consequence of this assumption, it feels free to use
all 8 of the registers. However, if this assumption is violated, a C
procedure that uses too many registers will signal a floating-point
stack overflow.

However, the Scheme compiler does not follow this convention; more
precisely, since it was originally designed to use reasonable
floating-point hardware, in which the floating-point registers are
organized as a bank of registers rather than a stack, it doesn't do
anything about popping registers when it is done with them. As a
consequence, floating-point operations generated by the Scheme
compiler often leave values on the floating-point stack.

To work around this without redesigning the compiler, the
compiled-code interface clears out the stack whenever it transfers
between C and Scheme code. The bug fixed by this revision was a
transfer point that did not have code to clear out the stack.

1997-05-03 Chris Hanson <[email protected]>

* runtime/arith.scm[1.39]:
Fix thinko: INTEGER-ROUND was doing round-to-odd instead of
round-to-even.

1997-05-02 Chris Hanson <[email protected]>

* runtime/numpar.scm[14.12]:
Fix stupid typo in previous change.

* runtime/arith.scm[1.38]:
Fix incredibly stupid think-o in previous change.

1997-05-01 Chris Hanson <[email protected]>

* microcode/uxproc.c[1.20]:
Changes needed to get PTY subprocesses working under BSDI.

* microcode/version.h[11.151.1.3]:
Changes to support BSDI and FreeBSD.

* microcode/ux.h[1.67]:
Fix think-o in previous change.

* microcode/bchmmg.c[9.92]:
Customize properly for POSIX, eliminating unnecessary prototype for
"lseek", which has been causing problems on some BSD systems.

* microcode/cmpauxmd/i386.m4[1.46]:
Don't use ** operator, because it isn't recognized on some of the BSD
versions of m4. Use << instead.

* microcode/uxtop.c[1.20]:
Disable declarations for sys_errlist and sys_nerr except where needed.
Most systems define these nowadays.

* microcode/Attic/oscond.h[1.23], microcode/s/Attic/386bsd.h[1.2],
microcode/ux.h[1.66]:
Customize for BSDI and FreeBSD.

* microcode/s/Attic/linux.h[1.7.1.2], microcode/s/Attic/linux.h[1.11],
microcode/unxutl/Attic/ymkfile[1.91]:
Add switch USE_BUILT_IN_LIMITS_FILES for systems that have built-in
<limits.h> and <float.h>. Previously this hack was specific to Linux.

1997-04-28 Chris Hanson <[email protected]>

* microcode/intprm.c[1.7]:
Add new primitive LIST->INTEGER.

* runtime/arith.scm[1.37]:
Optimize the change implemented in the previous revision, as it had a
serious impact on performance.

* runtime/arith.scm[1.36]:
Change method used by EXACT->INEXACT on integers. It turns out that
the old method, the INT:->FLONUM, does not round reliably, and as a
consequence the LSB of the result is sometimes wrong. However, the
conversion performed by INTEGER->FLONUM is accurate provided that the
integer being converted can be exactly represented by a flonum, i.e.
for IEEE double-precision floats, an integer with magnitude less than
(EXPT 2 53).

The algorithm used to convert ratnums to flonums already has this
property, so the integer conversion has been changed to use it.

* runtime/numpar.scm[14.11]:
Fix two bugs: (1) parser was not recognizing radix prefixes when
STRING->NUMBER called with an explicit radix argument; and (2) parser
not allowing exponents without an explicit sign.

1997-04-24 Chris Hanson <[email protected]>

* runtime/numpar.scm[14.10], runtime/runtime.pkg[14.276]:
Complete reimplementation of the number parser. New parser is 3.5
times as fast as the old one (see data below), and includes the
contribution due to the improved EXACT->INEXACT.

New switch FLONUM-PARSER-FAST? allows the number parser to sacrifice
accuracy for performance, and gains another factor of 2.4 in
performance on flonums.

----------------------------------------------------------------------
Tests performed with a list of 100000 randomly-generated strings. The
strings were generated by "test-numpar.scm", which implements the R4RS
number BNF, so the strings are arbitrary numeric syntax.

This is a test of general number-reading performance.

Results for old exact->inexact and old string->number:

process time: 9690 (9060 RUN + 630 GC); real time: 9690
process time: 9460 (8830 RUN + 630 GC); real time: 9458
process time: 9450 (8820 RUN + 630 GC); real time: 9451
process time: 9460 (8830 RUN + 630 GC); real time: 9456

average real time: 9514 msec

Results for new exact->inexact and new string->number:

process time: 2800 (2800 RUN + 0 GC); real time: 2800
process time: 2790 (2790 RUN + 0 GC); real time: 2786
process time: 2700 (2700 RUN + 0 GC); real time: 2703
process time: 2680 (2680 RUN + 0 GC); real time: 2686

average real time: 2744 msec

Average improvement is a factor of 3.5 in speed.

* microcode/uxenv.c[1.16]:
Workaround: Linux doesn't seem to record Scheme-program execution time
as "user" process time, so change process-time clock to count both
"user" and "system" time. Normally only "user" time counts.

1997-04-23 Chris Hanson <[email protected]>

* runtime/arith.scm[1.35], runtime/version.scm[14.173]:
Dramatically improve the performance of EXACT->INEXACT on ratnums and
(EXPT 2 x). Slightly improve INTEGER-ROUND. These changes require
two new primitives implemented in microcode 11.158.

Here are the results for EXACT->INEXACT. These tests were run by
calling EXACT->INEXACT on a list of 100000 randomly-generated ratnums.
The numerator and denominator were each chosen using a modulus of
(EXPT 2 64), discarding zero denominators and integer quotients.

The machine was a dual Pentium Pro 200MHz / 512kB cache, 128MB RAM,
running SMP Linux 2.0.26 and libc 5.4.20. Scheme was run using the
runtime.com band and a heap of 4000. The machine was otherwise
quiescent.

Results for old EXACT->INEXACT:

process time: 1750 (1470 RUN + 280 GC); real time: 37350
process time: 1000 (780 RUN + 220 GC); real time: 37359
process time: 900 (900 RUN + 0 GC); real time: 37345
process time: 2460 (2060 RUN + 400 GC); real time: 37370

average real time: 37356 msec

Results for new EXACT->INEXACT:

process time: 580 (580 RUN + 0 GC); real time: 5825
process time: 240 (240 RUN + 0 GC); real time: 5480
process time: 910 (910 RUN + 0 GC); real time: 5450
process time: 840 (540 RUN + 300 GC); real time: 5770

average real time: 5631 msec

Average improvement is a factor of 6.6 in speed.

* microcode/version.h[11.158]:
New primitives to support faster conversion of ratnum to flonum.

* microcode/artutl.c[1.14], microcode/bignum.c[9.44],
microcode/bignum.h[9.30], microcode/extern.h[9.55],
microcode/intprm.c[1.6]:
Add new primitive INTEGER-SHIFT-LEFT. This is a very fast way to
multiply an integer by a power of two.

1997-04-22 Chris Hanson <[email protected]>

* microcode/artutl.c[1.13], microcode/extern.h[9.54],
microcode/intprm.c[1.5]:
Implement new primitive INTEGER-LENGTH-IN-BITS. This computes the
length of a non-negative integer in the obvious way; it computes the
length of a negative integer by negating it and then returning the
value for the positive equivalent.

This primitive can be used to greatly speed up the conversion of
rational numbers to flonums.

* microcode/bigprm.c[1.5]:
Add primitive BIGNUM-LENGTH-IN-BITS.

1997-04-20 Chris Hanson <[email protected]>

* runtime/char.scm[14.6]:
Speed up CHAR->DIGIT and DIGIT->CHAR. Also change all arithmetic to
fixnum arithmetic, and reorganize file slightly.

1997-04-17 Chris Hanson <[email protected]>

* edwin/bufcom.scm[1.102]:
Add code to prompt user when killing a buffer that is modified or has
an active process. This is done by means of a variable containing a
list of "query" procedures.

1997-04-11 Chris Hanson <[email protected]>

* edwin/loadef.scm[1.31], edwin/manual.scm[1.14]:
Add command M-x clean-manual-entry.

1997-04-05 Chris Hanson <[email protected]>

* edwin/snr.scm[1.31]:
Eliminate a few of the calls to NEWS-GROUP:CLOSE-DATABASE, since they
have an adverse effect on performance.

1997-04-03 Chris Hanson <[email protected]>

* edwin/win32.scm[1.8]:
Change event-reading loop to block when waiting for an event while
none of the Edwin windows is active. This is safe because we won't
get any events until one of them becomes active, and at that time the
activation messages will cause a return from the block.

* microcode/ntscreen.c[1.28], microcode/ntscreen.h[1.14],
microcode/prntio.c[1.5]:
Add conditionalized code to generate a trace file showing message
receipt, waiting, and event fetching. This was used to track down a
busy-wait loop in Edwin.

1997-04-02 Chris Hanson <[email protected]>

* edwin/rcsparse.scm[1.2]:
Don't barf when a "branch" field appears in the admin block.

* microcode/intrpt.h[1.19], microcode/ntscmlib.h[1.8],
microcode/ntsig.c[1.20], microcode/nttop.c[1.20],
microcode/ntutl/scheme31.c[1.9], microcode/ntutl/scheme32.c[1.14],
microcode/version.h[11.157]:
Rewrite Win32 (as opposed to Win32s) DLL to use auxiliary thread and
Sleep() API call to generate async timer interrupts. Use a critical
section to synchronize the two threads' access to the interrupt
registers. These changes should eliminate the "spurious interrupt"
error messages that have been showing up from time to time.

1997-04-01 Chris Hanson <[email protected]>

* microcode/os2pm.c[1.30], microcode/os2pm.scm[1.7],
microcode/pros2pm.c[1.20], runtime/os2winp.scm[1.14]:
Implement new primitive to get at the OS/2 PM "system values".

1997-03-31 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.210], edwin/nntp.scm[1.14], edwin/snr.scm[1.30]:
Add code to close the NNTP database files after each high-level
operation. This is desirable on OS/2 because keeping the files open
prevents other programs from reading them.

* runtime/option.scm[14.34]:
Flush purification queue after loading an option. Otherwise, if the
option creates a new environment, and that environment has state
variables, the contents of those state variables will be purified at
the time of the next GC.

* microcode/prgdbm.c[1.2]:
Replace incorrect use of stderr with outf_error.

1997-03-30 Chris Hanson <[email protected]>

* compiler/base/make.scm[4.107],
compiler/machines/i386/rulfix.scm[1.28],
compiler/machines/mips/lapgen.scm[1.14],
compiler/machines/mips/rulfix.scm[1.10],
compiler/machines/spectrum/rulfix.scm[4.47],
compiler/rtlgen/opncod.scm[4.63]:
Fix bug in code generation for the HEAP-AVAILABLE? primitive. The
primitive compares addresses using an unsigned comparison, but the
compiled code was using a signed comparison. This was the cause of
sporadic failures that have been seen while running Edwin with a large
heap on OS/2; it could have happened on any operating system when
Edwin was run with a sufficiently large heap. This fix changes the
compiled code to use an unsigned comparison.

* edwin/os2term.scm[1.20]:
Fix bug: C-x 5 o was not causing the selected frame to become active.

* edwin/snr.scm[1.29]:
Eliminate error that would occur when updating news groups while any
groups list other than the subscribed-groups list was being shown in a
buffer.

* edwin/intmod.scm[1.87]:
Make sure that evaluation buffers have the correct setting for the
scheme-environment variable; this is needed so that completion will
work correctly. This was a problem in debugger buffers.

1997-03-21 Chris Hanson <[email protected]>

* microcode/ux.c[1.16], microcode/version.h[11.151.1.2]:
In linux_heap_malloc, use the MAP_FIXED flag to force the kernel to
provide the page at the given address. Version 1.2 kernels ignore the
"start address" argument if this flag is unspecified.

1997-03-19 Chris Hanson <[email protected]>

* edwin/info.scm[1.124]:
Fix bug: info-directory-list should be allowed to contain pathnames as
well as strings.

1997-03-18 Chris Hanson <[email protected]>

* microcode/ntgui.c[1.19]:
Fix bug: Watcom compiler passes arguments in registers by default, and
trick of pointing to first argument doesn't get pointer that points
"into the stack".

1997-03-14 Chris Hanson <[email protected]>

* edwin/dosfile.scm[1.10]:
Backup filenames being returned for deletion are supposed to be fully
qualified; they were not.

1997-03-10 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.209], edwin/keyparse.scm[1.2],
edwin/verilog.scm[1.4], edwin/vhdl.scm[1.4]:
* Create interface to allow keyparser description to be built up
incrementally. This aids in development and debugging of
descriptions.

* Modify indentation computation so that comment lines are indented
properly. Previously they were indented just like code lines.

* Change definition of MATCH-HEADER so that it accepts the keyparser
stack as an argument. Also open up the stack-entry abstraction.
These changes allow MATCH-HEADER to use contextual information in
its decision-making process.

* Fix some problems in the VHDL implementation. Use new MATCH-HEADER
extension to distinguish two cases of FOR keyword that are otherwise
syntactically identical.

* edwin/comatch.scm[1.3]:
Fix typo. Add another combinator.

1997-03-08 Chris Hanson <[email protected]>

* edwin/vhdl.scm[1.3]:
Add entry for "loop" structure.

* edwin/comatch.scm[1.2], edwin/vhdl.scm[1.2]:
Remove evaluation information that is no longer accurate.

1997-03-07 Chris Hanson <[email protected]>

* edwin/decls.scm[1.59], edwin/ed-ffi.scm[1.42], edwin/edwin.ldr[1.59],
edwin/edwin.pkg[1.208], edwin/loadef.scm[1.30],
edwin/verilog.scm[1.3]:
Implement VHDL mode. Generalize the keyword parser used by Verilog
mode so that it is powerful enough to parse both languages. Implement
a high-level extensible pattern matcher to allow the VHDL indenter to
recognize keyword contexts in cases where it is necessary.

* edwin/regexp.scm[1.70]:
Fix typo in previous revision.

1997-03-04 Chris Hanson <[email protected]>

* 6001/floppy.scm[1.19]:
Change to conform to new design of Edwin regular-expression
procedures.

* edwin/comhst.scm[1.5], edwin/comint.scm[1.23], edwin/debug.scm[1.41],
edwin/dired.scm[1.166], edwin/dosfile.scm[1.9],
edwin/edwin.pkg[1.207], edwin/edwin.pkg[1.206],
edwin/fileio.scm[1.142], edwin/info.scm[1.123],
edwin/malias.scm[1.3], edwin/manual.scm[1.13], edwin/occur.scm[1.3],
edwin/regexp.scm[1.69], edwin/rmail.scm[1.57],
edwin/rmailsrt.scm[1.9], edwin/rmailsum.scm[1.33],
edwin/shell.scm[1.14], edwin/snr.scm[1.28], edwin/strtab.scm[1.45],
edwin/telnet.scm[1.10], edwin/unix.scm[1.75], edwin/verilog.scm[1.2],
runtime/rgxcmp.scm[1.108]:
Create new data type for a compiled regular expression; this type
contains the case-fold information used to compile the regexp. Modify
the low-level regular-expression procedures to accept this new type
and to no longer have an argument for case-fold. Modify the
high-level regular-expression procedures to accept a compiled regular
expression in place of a regular-expression string; in this case the
optional case-fold argument is ignored.

Edit all references to the low-level procedures to conform to this new
design.

1997-03-03 Chris Hanson <[email protected]>

* edwin/lspcom.scm[1.157]:
Add procedure to find the start of a definition that a mark is in.

* edwin/edwin.pkg[1.205], edwin/regexp.scm[1.68],
edwin/syntax.scm[1.79]:
Add procedure to generate regular-expression "groups" from lists of
alternatives.

1997-02-23 Chris Hanson <[email protected]>

* edwin/debug.scm[1.40], edwin/edwin.pkg[1.204], edwin/eystep.scm[1.4],
edwin/info.scm[1.122], edwin/screen.scm[1.115], edwin/snr.scm[1.27]:
Change data structures and calling conventions of screen abstraction
so that "highlighting" can specify the "face" in which the text will
appear. This generalization allows us to modify the terminal
abstractions to support multiple fonts and colors.

* runtime/vector.scm[14.10], runtime/vector.scm[14.9],
runtime/vector.scm[14.8]:
Add several new operations on vectors. Eliminate unnecessary
bindings.

1997-02-22 Chris Hanson <[email protected]>

* runtime/vector.scm[14.7]:
Add several new operations on vectors. Eliminate unnecessary
bindings.

1997-02-21 Chris Hanson <[email protected]>

* runtime/chrset.scm[14.5], runtime/cpress.scm[1.9],
runtime/cpress.scm[1.8], runtime/input.scm[14.18],
runtime/input.scm[14.17], runtime/port.scm[1.10],
runtime/port.scm[1.9], runtime/runtime.pkg[14.275]:
Guarantee that all input ports have a READ-SUBSTRING operation.
Implement procedures READ-STRING! and READ-LINE.

1997-02-20 Chris Hanson <[email protected]>

* microcode/prntfs.c[1.11]:
Fix typo in translation of unix time to NT file time.

1997-02-12 Chris Hanson <[email protected]>

* microcode/interp.c[9.87], microcode/scheme.h[9.37]:
Move only reference to COMPILE_STEPPER from "scheme.h" to "interp.c",
since that is the only file affected. Also, the previous location of
this reference prevented the assignment in "config.h" from being
properly seen.

* edwin/os2.scm[1.37]:
Fix thinko from change to implement "krypt" support.

* runtime/dragon4.scm[1.9]:
Fix what appears to have been a thinko in the rounding of
floating-point printed representations. This fix prevents the code
from diverging with certain combinations of numbers and rounding
modes. An example that caused this problem:

(set! flonum-unparser-cutoff '(relative 4))
(/ (* 10e3 100e-15))

I'm not entirely convinced I understand the problem at this point; I
don't have a copy of the paper at hand to remind me how the printer
algorithm works. But the change fixes the bug, seems to work
correctly on other test cases, and matches what my partial
understanding says should be happening.

1997-02-08 Chris Hanson <[email protected]>

* edwin/cinden.scm[1.16]:
Fix bug in C indentation.

1997-02-05 Chris Hanson <[email protected]>

* microcode/x11base.c[1.70]:
Add hack suggested by "[email protected] (Aaron M. Ucko)" to locally bind
the BackSpace key to DEL.

1997-01-25 Chris Hanson <[email protected]>

* runtime/datime.scm[14.16]:
Fix bug: code for make-decoded-time can easily signal an error when
the time being represented is earlier than 1970 on a unix machine.
Fix allows such times to be represented, but without filling in
day-of-week, timezone, and daylight-savings fields.

1997-01-22 Chris Hanson <[email protected]>

* runtime/io.scm[14.49]:
* Fix bug in INPUT-BUFFER/DISCARD-CHAR: was not doing anything if the
input buffer was empty.

* Change INPUT-BUFFER/READ-SUBSTRING to read a whole buffer from the
input channel if the required number of characters is less than the
size of the buffer.

* Change INPUT-BUFFER/READ-SUBSTRING to continue reading from the
input channel until the substring is filled or the channel has no
more characters available. This is a correct fix for the change
made in revision 14.47; this fix does a probe of the channel to
determine if there are any characters immediately available.
Previous to 14.47 the procedure might have blocked waiting for input
that was not ready, even if it had already partly filled the
substring. Now it will immediately return any characters that are
available, and block only when nothing is available.

1997-01-15 Chris Hanson <[email protected]>

* edwin/rmail.scm[1.56]:
Fix call to APPEND-TO-FILE that should have been patched in the
previous change.

1997-01-13 Chris Hanson <[email protected]>

* microcode/s/Attic/linux.h[1.7.1.1], microcode/version.h[11.151.1.1]:
Put mmap modifications from revision 1.10 into the 7.4 release.

1997-01-10 Chris Hanson <[email protected]>

* microcode/os2top.c[1.18]:
Generalize version-number handling to detect IBM's continued use of
version numbers such as 2.4 rather than 4.0.

1997-01-06 Chris Hanson <[email protected]>

* edwin/dos.scm[1.44]:
Use new directory reader to get better attribute information from
Win32. This requires microcode 11.156 and runtime 14.172.

1997-01-05 Chris Hanson <[email protected]>

* edwin/dos.scm[1.43]:
Use new directory reader to get better attribute information from
Win32. This requires microcode 11.156 and runtime 14.172.

* runtime/ntprm.scm[1.11], runtime/runtime.pkg[14.274],
runtime/version.scm[14.172]:
Add new file to customize Win32 directory reader. Extend Win32 file
attributes vector to include the mode bits. This version of the
runtime system requires microcode 11.156 or later.

* microcode/prntfs.c[1.10], microcode/version.h[11.156]:
Extensive changes to the code that gets information about files; new
code is smarter about reading protected files. Also add new
directory-reading primitive to allow the runtime system to get full
file-attribute information; this is otherwise impossible as the
directory reader is able to get file information that the
file-attribute calls can't.

* microcode/ntfs.c[1.14]:
Add new procedure to get all of the information from the directory
reader.

* microcode/ntfile.c[1.8]:
Add file-opening flags that hint to the operating system about how to
optimize file caching.

* microcode/ntapi.h[1.2]:
Add new system call.

* microcode/ntutl/makefile.wcc[1.6]:
Add dependencies for ntapi.h.

* microcode/ntutl/makefile.wcc[1.5]:
Add explicit dependencies to many of the files as wmake seems not to
have this behavior.

1997-01-03 Chris Hanson <[email protected]>

* edwin/autosv.scm[1.31], edwin/filcom.scm[1.189],
edwin/fileio.scm[1.141], edwin/fileio.scm[1.140],
edwin/rmail.scm[1.55], edwin/sendmail.scm[1.35]:
Change output procedures to ignore translate-file-data-on-output in
some circumstances. This is necessary because RMAIL files want this
variable set to #F, but M-x write-region should ignore the variable
binding in that case and do translation anyway.

1997-01-02 Chris Hanson <[email protected]>

* microcode/ntutl/scheme16.c[1.10], microcode/ntutl/scheme32.c[1.13]:
Rearrange the code that sets memtop to trigger an interrupt. I have a
strong suspicion that these timer interrupts run in a separate thread
under NT. If so, this is a really dangerous thing to be doing without
synchronization. This rearrangement will minimize the window in which
problems can occur.

* microcode/avltree.c[1.3], microcode/bchdrn.h[1.8],
microcode/bchpur.c[9.66], microcode/bignum.c[9.43],
microcode/bintopsb.c[9.66], microcode/bitstr.c[9.60],
microcode/comutl.c[1.30], microcode/extern.c[9.36],
microcode/fasdump.c[9.62], microcode/findprim.c[9.51],
microcode/hooks.c[9.56], microcode/lookprm.c[1.10],
microcode/ntio.c[1.14], microcode/ntsys.c[1.7],
microcode/nttrap.c[1.12], microcode/rgxprim.c[1.11],
microcode/utils.c[9.71]:
Eliminate compiler warnings generated under NT.

* edwin/win32.scm[1.7]:
Change event-reading code to use SELECT rather than kludge of giving
up time slice and polling. This requires corresponding changes in
microcode 11.155 and runtime 14.171.

* runtime/ntprm.scm[1.10], runtime/version.scm[14.171]:
*** Note: this version of the runtime system requires microcode
version 11.155 or later. ***

* Implement heuristic to detect unix drivers and perform appropriate
end-of-line translations for them.

* Provide names for Win32 file-system info flags.

* Reimplement SELECT support to match changes in microcode. The
improved support helps to prevent Scheme from getting stuck while
waiting for input.

* microcode/version.h[11.155]:
Extensive changes to provide proper support for Win32 API calls. This
new support integrates with the runtime system to provide correct
names for procedures and errors, and eliminates the need to use a
unix-style name in association with a Win32 API entity.

* Create new Win32-specific channel types. Eliminate non-OS-specific
channel type names.

* Introduce new file "ntapi.h" to encapsulate information about the
Win32 API. Rename macros for NT system calls, separating them into
two groups: one to handle unix-style calls, the other to handle
Win32-style calls. Eliminate NT_<foo> aliases of C library
procedures. Create Win32-specific system-call names, API-call
names, and errors. Update all references to the old names.

* Implement OS_malloc, OS_realloc, and OS_free; change various call
sites to use these.

* Change the low-level timer-interrupt handler to generate a GUI
message when a Scheme interrupt is generated; this is necessary to
unblock Scheme if it is blocked inside MsgWaitForMultipleObjects.

1997-01-01 Chris Hanson <[email protected]>

* microcode/Attic/dosfile.c[1.3], microcode/nt.h[1.6],
microcode/ntenv.c[1.15], microcode/ntfile.c[1.7],
microcode/ntfs.c[1.13], microcode/ntgui.h[1.7],
microcode/ntio.c[1.13], microcode/ntscmlib.h[1.7],
microcode/ntsig.c[1.19], microcode/nttop.c[1.19],
microcode/ntutl/scheme16.c[1.9], microcode/ntutl/scheme31.c[1.8],
microcode/ntutl/scheme32.c[1.12], microcode/osio.h[1.12],
microcode/prntenv.c[1.6], microcode/prntfs.c[1.9],
microcode/prntio.c[1.4], microcode/prosio.c[1.14],
microcode/prospty.c[1.3], microcode/syscall.h[1.10],
microcode/uxfile.c[1.8], microcode/uxio.c[1.40],
microcode/uxterm.c[1.25]:
Extensive changes to provide proper support for Win32 API calls. This
new support integrates with the runtime system to provide correct
names for procedures and errors, and eliminates the need to use a
unix-style name in association with a Win32 API entity.

* Create new Win32-specific channel types. Eliminate non-OS-specific
channel type names.

* Introduce new file "ntapi.h" to encapsulate information about the
Win32 API. Rename macros for NT system calls, separating them into
two groups: one to handle unix-style calls, the other to handle
Win32-style calls. Eliminate NT_<foo> aliases of C library
procedures. Create Win32-specific system-call names, API-call
names, and errors. Update all references to the old names.

* Implement OS_malloc, OS_realloc, and OS_free; change various call
sites to use these.

* Change the low-level timer-interrupt handler to generate a GUI
message when a Scheme interrupt is generated; this is necessary to
unblock Scheme if it is blocked inside MsgWaitForMultipleObjects.

* microcode/os2pm.c[1.29]:
Simplify code that changes a window's size. Both the old and new code
produces incorrect results on my machine. This seems to be an OS/2
bug, as it consistently adds too much padding to the frame window's
header height.

* microcode/os2pmcon.c[1.22], microcode/pros2pm.c[1.19]:
Disable byte alignment for windows created by Scheme.

1996-12-25 Chris Hanson <[email protected]>

* edwin/snr.scm[1.26], edwin/snr.scm[1.25]:
* Change terminology to refer to "seen" articles as "deleted".

* Introduce new marking, "browsed", to indicate articles whose headers
have been shown in a news-group buffer. These "browsed" markings
are used to prevent a common problem with cross posts: after having
marked an article in one group, re-marking the cross-posted article
differently in another group clobbers the original markings. The
news reader now examines the "browsed" marking, and does not re-mark
any cross post that has already been "browsed".

* Change code that selects initial header when opening a news-group
buffer for the first time. New code does not automatically expand a
thread whose first message is "deleted".

* compiler/machines/i386/make.scm[1.5]:
Don't disable stack checks for this architecture; stack overflow is
impossible to debug without them (except on OS/2 which has clever
virtual-memory support for this). Also note that all other
architectures generate them by default.

1996-12-24 Chris Hanson <[email protected]>

* edwin/fileio.scm[1.139]:
Modify BACKUP-BUFFER to chase through symbolic links so that the
backup operates on the file rather than the link.

* edwin/unix.scm[1.74]:
Simplify OS/BACKUP-BUFFER? to be consistent with Emacs 19.

* edwin/snr.scm[1.24]:
Fix bug: not showing all headers when reverting group buffer. Also
rewrite handling of cross posts to concentrate cross-post management
in one place.

1996-12-19 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.203], edwin/snr.scm[1.23]:
Implement new variable news-group-keep-ignored-headers. Change
purging code to use new interface.

* edwin/nntp.scm[1.13]:
Reimplement code to purge pre-read headers and bodies. New code calls
predicate with a header instead of with a message number, deletes
message-id entries properly, and eliminates any body without a
corresponding header.

1996-12-16 Chris Hanson <[email protected]>

* edwin/vc.scm[1.25]:
Preserve time stamp of file when reverting to previous revision.

* microcode/Attic/config.h[9.97], microcode/Attic/config.h[9.96],
microcode/s/Attic/linux.h[1.10], microcode/ux.c[1.15]:
Use special allocator to allocate the heap when running under Linux.
Linux ELF pushes the text and data segments up into high addresses,
leaving most of the low addresses empty. To get access to them, we
must use mmap.

1996-12-11 Chris Hanson <[email protected]>

* microcode/x11base.c[1.69]:
Add one final tweak to get X-WINDOW-SET-POSITION working properly.
It now works correctly under XFree86; I haven't tested it under HP-UX
mwm, but I think it is probably still failing there. There seems to
be some kind of translation problem on that system.

* microcode/s/Attic/linux.h[1.9]:
Change location of X11 library; the previous location is not valid for
many distributions now.

* edwin/xcom.scm[1.15]:
Change implementation of M-x show-frame-size to use new primitive to
determine size of frame in pixels.

* microcode/x11base.c[1.68]:
Reimplement X-WINDOW-GET-POSITION and add new X-WINDOW-GET-SIZE.

1996-12-10 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.202], edwin/xcom.scm[1.14]:
Implement commands to show the size and position of the editor frame.

* microcode/x11base.c[1.67]:
Implement new primitive to get the desktop coordinates of a window's
frame.

1996-12-07 Chris Hanson <[email protected]>

* edwin/decls.scm[1.58], edwin/dos.scm[1.42], edwin/ed-ffi.scm[1.41],
edwin/edwin.ldr[1.58], edwin/edwin.pkg[1.201]:
Implement remaining Dired customizations for Win32. (All further
customizations require subprocess support.)

* edwin/snr.scm[1.22], edwin/snr.scm[1.21]:
Fix thinko in recent change.

1996-12-06 Chris Hanson <[email protected]>

* edwin/edwin.ldr[1.57], edwin/os2.scm[1.36]:
Add support for encrypted files.

1996-12-04 Stephen Adams <[email protected]>

* runtime/msort.scm[14.4]:
Changed SORT to return a newly allocated list (as specified in the
reference manual) in the case of a singleton list.

1996-12-01 Stephen Adams <[email protected]>

* runtime/msort.scm[14.3], runtime/partab.scm[14.4],
runtime/qsort.scm[14.2], runtime/uproc.scm[1.10]:
Changed some calls to ERROR to calls to ERROR:WRONG-TYPE-ARGUMENT etc.

* runtime/x11graph.scm[1.45]:
Added graphics operation DRAW-TEXT-OPAQUE.
Removed duplicate X-GRAPHICS/FILL-POLYGON.

1996-12-01 Chris Hanson <[email protected]>

* edwin/rmail.scm[1.54]:
Change to permit RMAIL files to be visited in RMAIL mode under NT (no
support for reading mail yet).

1996-11-30 Chris Hanson <[email protected]>

* edwin/snr.scm[1.20]:
Fix "unused variable" warning.

1996-11-26 Stephen Adams <[email protected]>

* runtime/msort.scm[14.2]:
Speed up SORT! 45% by using fixnum index arithmetic.

1996-11-22 Chris Hanson <[email protected]>

* edwin/snr.scm[1.19]:
Don't remove messages from the "seen" list when erasing their
"ignored" bit. The appropriate action will be taken elsewhere.

1996-11-21 Chris Hanson <[email protected]>

* edwin/snr.scm[1.18]:
* Add support for remembering marked articles in group structure and
in group init file. Change server buffer to show which groups
contain marked articles. Extend M-x news-read-marked-bodies so that
it will work from the server buffer, fetching all of the marked
articles in all of the groups.

* Change group buffer to show threads that have pre-read bodies.

* When marking an article, if it is not being ignored, make sure that
it is removed from the ignored-subjects database.

1996-11-18 Chris Hanson <[email protected]>

* microcode/prntfs.c[1.8]:
Ignore sharing-violation errors when reading file attributes, treating
the file as non-existent. This is not correct, but until the NT
errors are properly mapped, the runtime system won't be able to handle
this error.

* microcode/ntscreen.c[1.27]:
Change call to `PostMessage' to use `SendMessage' to eliminate race
condition when adjusting font and size of window together, as does my
.edwin file.

1996-11-14 Stephen Adams <[email protected]>

* swat/scheme/widget-mit.scm[1.2]:
Fixed '() <--> #F bug in FIND-TK-PROTECTION-LIST-FROM-NUMBER.

1996-11-13 Stephen Adams <[email protected]>

* microcode/hppacach.c[1.11]:
reverted change but left both #defines of KERNEL_FILE in place.

* microcode/hppacach.c[1.10]:
Changed to look for both hpux9 and hpux10 kernel files.

1996-11-10 Stephen Adams <[email protected]>

* compiler/machines/i386/compiler.pkg[1.22]:
Added the disassembler back into the normal system.

1996-11-08 Stephen Adams <[email protected]>

* microcode/s/Attic/linux.h[1.8]:
Added support fo dynamic loading.
Includes flag `-rdynamic' for linking main program.

1996-11-07 Stephen Adams <[email protected]>

* edwin/debug.scm[1.39]:
Changed an occurence of MAP to FOR-EACH to make behaviour
deterministic. Added variables `debugger-show-inner-frame-topmost?'
and `debugger-compact-display?' to control the display of information.

1996-10-28 Chris Hanson <[email protected]>

* edwin/nntp.scm[1.12]:
Don't purge the header database when updating the server info. This
caused the newsreader startup to be extremely slow.

* edwin/snr.scm[1.17]:
Don't purge header database when reading headers in; this
unnecessarily slows down the header-reading process.

1996-10-24 Chris Hanson <[email protected]>

* edwin/xterm.scm[1.54]:
Synchronize action of XTERM-SCREEN/ENTER! until after the window is
properly mapped on the screen. This will hopefully eliminate the
weird race condition that has been causing so many errors.

* edwin/key-x11.scm[1.4]:
Fix bug that can cause a SIGSEGV.

* edwin/nntp.scm[1.11]:
Change NEWS-HEADER:GUARANTEE-FULL-TEXT! so that it stores the header
text after it is fetched. This is necessary to allow off-line reading
to work properly.

1996-10-23 Chris Hanson <[email protected]>

* edwin/nntp.scm[1.10]:
Change code that joins and splits threads on the basis of subject.
This code is now more discriminating than previously.

* edwin/snr.scm[1.16], edwin/snr.scm[1.15]:
When reading in context headers, mark them as ignored when necessary.
Also, delete entire threads of "seen" context headers.

1996-10-15 Chris Hanson <[email protected]>

* edwin/nntp.scm[1.9]:
Fix another thinko.

* edwin/nntp.scm[1.8]:
Fix thinko.

* edwin/nntp.scm[1.7]:
Fix bug: try harder to open the database files.

* edwin/edwin.pkg[1.200]:
Changes to news reader.

* edwin/snr.scm[1.14]:
* Add new switches:
news-group-keep-seen-headers
news-group-show-seen-headers

* Change default for news-group-show-context-headers.

* Change binding of news-toggle-online to shift-O.

* Change code that collapses and expands threads so that only those
threads that need to be changed are actually rewritten.

* Add "B" marker in header lines to show which messages have
associated bodies stored in the new body database.

* Add command news-read-marked-bodies (bound to "r") to read the
marked bodies in a news-group buffer.

* Make noticeable change to the performance of header-parsing code, in
order to support groups with very large numbers of headers.

* edwin/nntp.scm[1.6]:
* Add database for message bodies.

* Modify handling of message-header database so that messages are
keyed by ID as well as by number.

* Purge obsolete headers from the cache and database when the server
info is updated.

* Change format in which headers are stored in database to improve
performance.

* Use gdbm_fastmode for database files at all times.

* Various small performance tweaks to header-parsing code.

* Change thread organizing code to separate the switch for context
headers from the switch allowing server probes.

1996-10-14 Chris Hanson <[email protected]>

* edwin/snr.scm[1.13]:
Make sure that groups are tracked after being unsubscribed so that
they will be deleted from the groups list when their "article-seen"
information is irrelevant. Save groups list whenever a group buffer
is killed, to help insure consistency between the groups list and the
header cache.

1996-10-10 Chris Hanson <[email protected]>

* edwin/dos.scm[1.41], edwin/edwin.pkg[1.199], edwin/notify.scm[1.17],
edwin/os2.scm[1.35], edwin/rmail.scm[1.53], edwin/unix.scm[1.73]:
Generalize how RMAIL looks for the spool directory and the movemail
program.

1996-10-09 Chris Hanson <[email protected]>

* edwin/dos.scm[1.40], edwin/dosfile.scm[1.8], edwin/os2.scm[1.34]:
Now that microcode implements directory-reading properly, use the OS/2
directory reader for Win32. This is implemented by moving the
directory reader to "dosfile.scm", since we aren't supporting DOS any
more.

* runtime/runtime.pkg[14.273]:
Now that microcode implements directory-reading properly, use the OS/2
directory reader for Win32 rather than the DOS directory.

* microcode/ntscreen.c[1.26]:
Fix font-selection code so that it will allow selection of raster
fonts.

* microcode/ntfs.c[1.12]:
Fix directory reader so that wildcarding is done by the Win32 API
rather than Scheme code. This improves performance and makes the
wildcarding work as in other Win32 programs. Also implement
OS_directory_read_matching which improves performance of completion in
Edwin.

1996-10-08 Chris Hanson <[email protected]>

* microcode/x11base.c[1.66]:
Further refine the error-catching code in X-WINDOW-SET-INPUT-FOCUS.
It now catches the error that was causing the problems.

* edwin/wincom.scm[1.121]:
When creating a new frame, don't select it -- attempting to do this
causes a race condition that can cause X to signal an error. Instead,
rely on the window manager to select the window if that is
appropriate.

* microcode/ntutl/wconfig.bat[1.3]:
Adjustment for correct Watcom configuration.

1996-10-07 Chris Hanson <[email protected]>

* runtime/ntprm.scm[1.9]:
Define bits for Win32 attributes.

* edwin/dos.scm[1.39]:
Adjust handling of file modes that are now Win32 attributes rather
than unix mode bits.

* edwin/dos.scm[1.38]:
Adjust dired line layout to accomodate Win32-specific mode string.

* edwin/edwin.pkg[1.198], edwin/win32.scm[1.6],
edwin/win32com.scm[1.7]:
Implement M-x set-frame-size. Fix bug in M-x show-frame-size.

* win32/clipbrd.scm[1.2], win32/wf_user.scm[1.7], win32/win32.pkg[1.9]:
Add new procedures ADJUST-WINDOW-RECT, GET-CLIENT-RECT,
WIN32-SCREEN-WIDTH, and WIN32-SCREEN-HEIGHT. Fix bug in
GET-DEVICE-CAPS.

* runtime/datime.scm[14.15], runtime/dosprm.scm[1.39],
runtime/ntprm.scm[1.8], runtime/unxprm.scm[1.46]:
Fix bug: previously, "universal time" was really unix time. This fix
does the translation between universal time and unix time.

* runtime/runtime.pkg[14.272]:
Export new variable EPOCH.

* microcode/ntgui.c[1.18]:
Implement primitives to get the size of the character box in pixels
and to set the size of the window.

* microcode/ntscreen.c[1.25]:
Change font-setting code to interpret the font size in points rather
than in logical units. This makes this code consistent with the
font-setting dialog.

Handle the WM_WINDOWPOSCHANGING message in order to guarantee that the
window is sized to an integral number of characters.

Also, many formatting changes.

* microcode/ntenv.c[1.14]:
Change OS_encoded_time to use Win32 API.

* microcode/ntfs.c[1.11]:
Catch additional error code that can occur when file doesn't exist.

* microcode/prntfs.c[1.7]:
Change file-info primitives to use Win32 API calls instead of C
library calls. Return mode string and mode bits in native format
rather than unix format.

* microcode/prosenv.c[1.14]:
Change time decode/encode to use unsigned integer conversions.

* microcode/ntscreen.h[1.13]:
Add export for screen_char_dimensions.

1996-10-04 Chris Hanson <[email protected]>

* 6001/floppy.scm[1.18]:
Fix bug: interface to OS/BUFFER-BACKUP-PATHNAME was changed and
reference in this file was missed.

* microcode/x11base.c[1.65]:
Fix a thinko in the last change.

1996-10-03 Chris Hanson <[email protected]>

* microcode/os2utl/makefile.cmn[1.9]:
Work around bug in GNU make on OS/2: backslash before output
redirection seems to be generating a null-string argument which is
misinterpreted by findprim.

1996-10-02 Chris Hanson <[email protected]>

* microcode/ansidecl.h[1.5], microcode/avltree.c[1.2],
microcode/bignmint.h[1.5], microcode/bignum.c[9.42],
microcode/bignum.h[9.29], microcode/bigprm.c[1.4],
microcode/bitstr.c[9.59], microcode/bitstr.c[9.58],
microcode/bitstr.c[9.57], microcode/boot.c[9.97],
microcode/cmpint.c[1.90], microcode/debug.c[9.48],
microcode/extern.c[9.35], microcode/fasdump.c[9.61],
microcode/fasload.c[9.82], microcode/findprim.c[9.50],
microcode/generic.c[9.38], microcode/hooks.c[9.55],
microcode/hooks.c[9.54], microcode/intern.c[9.55],
microcode/interp.c[9.86], microcode/lookup.c[9.55],
microcode/lookup.h[9.49], microcode/memmag.c[9.63],
microcode/memmag.h[1.5], microcode/ntfile.c[1.6],
microcode/ntgui.c[1.17], microcode/ntscreen.c[1.24],
microcode/ntsig.c[1.18], microcode/ntsys.c[1.6],
microcode/nttty.c[1.6], microcode/ntutl/scheme32.c[1.11],
microcode/ntutl/scm-cl3.lst[1.8], microcode/option.c[1.43],
microcode/osscheme.c[1.9], microcode/prim.c[9.38],
microcode/primutl.c[9.70], microcode/prntfs.c[1.6],
microcode/prntio.c[1.3], microcode/prosio.c[1.13],
microcode/prosterm.c[1.15], microcode/prostty.c[1.6],
microcode/pruxfs.c[9.54], microcode/pruxfs.c[9.53],
microcode/purutl.c[9.48], microcode/step.c[9.33],
microcode/string.c[9.37], microcode/sysprim.c[9.42],
microcode/term.c[1.13], microcode/usrdef.h[9.42],
microcode/utils.c[9.70], microcode/vector.c[9.37],
microcode/wabbit.c[1.4]:
Many small changes to eliminate errors and warnings when compiling
under Win32 using either Visual C++ 4.0 or Watcom C/C++ 10.6.

* microcode/cmpauxmd/i386.m4[1.45], microcode/ntutl/makefile.wcc[1.4],
microcode/ntutl/wconfig.bat[1.2]:
Changes that result in a successful build with the Watcom compiler.

* microcode/ntasutl.asm[1.5]:
Fix bug: use of "tiny" memory model causes Watcom linker to produce
invalid executable. The memory model is irrelevant here, anyway,
since there are no references to memory in this code.

* edwin/dired.scm[1.165], edwin/dos.scm[1.37], edwin/os2.scm[1.33],
edwin/unix.scm[1.72]:
Add new OS-specific procedure DIRED-PATHNAME-WILD? so that unix can
support the full range of filename expansion provided by the shell.

1996-10-01 Chris Hanson <[email protected]>

* edwin/comtab.scm[1.67]:
Eliminate duplicate bindings differing only in case in bindings lists.

1996-09-30 Chris Hanson <[email protected]>

* microcode/x11base.c[1.64]:
In x-window-set-input-focus, flush the display queue right away.
Otherwise, the error-catching code from the previous revision will
have no effect since the command will be sent later.

* edwin/rmail.scm[1.52]:
Fix buffer-memoization bugs. Eliminate random patch installed by bal.

1996-09-28 Chris Hanson <[email protected]>

* 6001/edextra.scm[1.21], 6001/make.scm[15.25]:
Change defaults for configuration directories: the course material
goes under "~u6001" but the working directory is in the user's home
directory. The directories are now all chosen when the editor is
started rather than when the band is built.

* edwin/os2term.scm[1.19]:
When scrolling, inform the screen code that the cursor has been moved
so that it can move it back if necessary.

* edwin/screen.scm[1.114]:
Add ability for the terminal-scrolling code to tell the screen code
that the cursor position has been invalidated by the scroll.

1996-09-27 Chris Hanson <[email protected]>

* 6001/make.scm[15.24]:
Change 6.001 package to put the student root directory in the user's
home directory, rather than using an absolute pathname that might not
exist on a given system.

1996-09-26 Chris Hanson <[email protected]>

* edwin/os2term.scm[1.18]:
Fix interrupt hole in updating of screen size.

1996-09-20 Chris Hanson <[email protected]>

* microcode/x11base.c[1.63]:
Patch to help fix bug in 6.001 debugger.

1996-09-12 Chris Hanson <[email protected]>

* microcode/x11base.c[1.62]:
Patch X error handers so that they kill Scheme when the X connection
is lost. This is a kludge, but is needed to fix a common problem.

1996-09-06 Chris Hanson <[email protected]>

* edwin/dired.scm[1.164]:
Fix bug: error signalled in dired when trying to determine whether a
given pathname specifies a directory.

* runtime/uerror.scm[14.44]:
Add entries to file-primitive translation table to cover the new
primitives used to open files.

1996-08-26 Stephen Adams <[email protected]>

* runtime/pp.scm[14.38]:
Added DEFINE-INTEGRABLE to list of specially formatted keywords.

1996-08-20 Stephen Adams <[email protected]>

* microcode/x11graph.c[1.37]:
Added X-GRAPHICS-DRAW-IMAGE-STRING.

1996-08-19 Stephen Adams <[email protected]>

* microcode/uxtrap.h[1.25]:
Made traps work for HPUX 10.

1996-08-12 Chris Hanson <[email protected]>

* microcode/cmpauxmd/hppa.m4[1.37]:
Fix illegal instructions that are rejected by the new HP assembler.

1996-07-31 Stephen Adams <[email protected]>

* swat/scheme/tk-mit.scm[1.3]:
Fix thinko: only conditions are errors!

* swat/scheme/tk-mit.scm[1.2]:
Wrapped call-backs in error trapping code.

* swat/Makefile[1.2]:
Added tags target.

1996-07-27 Stephen Adams <[email protected]>

* runtime/list.scm[14.22]:
Re-instated the iterative version of MAP.
I keep getting bitten by long lists.

1996-07-26 Stephen Adams <[email protected]>

* runtime/random.scm[14.16]:
make random-state-tag define-integrable.

* runtime/uerror.scm[14.43]:
Added new stack frame type for preservation frames (restore-regs).
Added a debugging-info method.

Changed the illegal-arg error handler for primitive procedures to
avoid using retry restarts when the primitive signalled a type or
range error when called from compiled code. This is necessary because
the compiler assumes that if it calls a primitive just to raise an
error then teh primitive will not return. This assumption allows type
inference to eliminate furthur checks.

In order to stop the debugger returning a value, the primitive should
be called `indirectly' via another compiler procedure which refuses to
return. I.e instead of compiling the error CAR operation as
INVOKE:PRIMITIVE

(#[primitive-procedure car] x)

call it like this:

(signal-primitive-error '#[primitive-procedure car] x)

where SIGNAL-PRIMITIVE-ERROR is compiled like this:

(define (signal-primitive-error primitive . arguments)
(apply primitive arguments)
(error "..."))

1996-07-20 Stephen Adams <[email protected]>

* microcode/fixnum.c[9.40]:
Typo.

* microcode/fixnum.c[9.39]:
Added FIXNUM->FLONUM.

1996-07-12 Stephen Adams <[email protected]>

* runtime/x11graph.scm[1.44]:
Added graphcis operations DRAW-ARC, DRAW-CIRCLE and FILL-CIRCLE.

* microcode/x11graph.c[1.36]:
Fixed X-GRAPHICS-DRAW-ARC to do the right thing when the X and/or Y
axes are flipped.

* microcode/x11graph.c[1.35]:
Added X-GRAPHICS-DRAW-ARC for drawing filled and unfilled arcs.

1996-07-02 Chris Hanson <[email protected]>

* microcode/uxio.c[1.39]:
Rewrite `poll' support to make it conditionalized more cleanly.

* microcode/uxio.c[1.38]:
Use POLLNORM in preference to POLLIN since the former is supported
more widely.

* edwin/screen.scm[1.113]:
Fix minor bug in handling of cursor during SCREEN-FORCE-UPDATE.

1996-07-01 Chris Hanson <[email protected]>

* microcode/uxio.c[1.37]:
If the `poll' system call is available, use it in preference to
`select'. This is needed for HP-UX 10.10 because `select' is broken
in that release.

* microcode/ux.h[1.65]:
Add conditionalization to detect versions of HP-UX that supply the
`poll' system call.

* microcode/Attic/oscond.h[1.22]:
Add conditionalization to detect HP-UX version 10.10.

1996-06-16 Chris Hanson <[email protected]>

* edwin/rmail.scm[1.51]:
Fix bug that caused RMAIL to signal an error when converting poorly
formed messages to RMAIL format.

1996-06-11 Chris Hanson <[email protected]>

* runtime/dragon4.scm[1.8]:
Implement "engineering" display mode.

1996-06-07 Stephen Adams <[email protected]>

* swat/scheme/swat.sf[1.2]:
Included "load.scm" in syntax sequence.
Added copyright notice.

* swat/scheme/load.scm[1.2]:
Any identifier containing `protect' is no longer exported.

1996-06-06 Chris Hanson <[email protected]>

* runtime/dragon4.scm[1.7]:
Extend FLONUM-UNPARSER-CUTOFF to allow specification of the display
mode, e.g. SCIENTIFIC or ENGINEERING.

1996-05-24 Chris Hanson <[email protected]>

* edwin/process.scm[1.51]:
Fix bug: don't enqueue a process in the process-input-queue if it is
already in the queue. Otherwise, it can easily get entered very many
times: if there is input waiting, and the editor is busy, the process
will be queued as often as the select code can run.

1996-05-18 Chris Hanson <[email protected]>

* runtime/io.scm[14.48], runtime/runtime.pkg[14.271],
runtime/socket.scm[1.8], runtime/version.scm[14.170]:
Change mechanism used to open files and sockets, so that interrupts
are enabled during the open. This is necessary, because any
network-based operation could potentially hang for long periods of
time, and it's desirable for the user to be able to interrupt out of
the operation.

This change requires microcode version 11.154 (or the corresponding
version 13).

In addition to this change, the low-level channel code was changed to
eliminate the now-obsolete gc-daemon interlocking code.

* microcode/os2sock.c[1.3]:
Fix code so that interrupts delivered during socket calls will
deallocated sockets where necessary.

* microcode/uxsock.c[1.14]:
Add code to allow delivery of interrupts during socket-opening system
calls.

* microcode/prosfile.c[1.8], microcode/pruxsock.c[1.10],
microcode/version.h[11.154]:
Implement new primitives to support new method for opening files and
sockets. This code is required for runtime version 14.170.

1996-05-17 Chris Hanson <[email protected]>

* runtime/socket.scm[1.7]:
Allow keyboard interrupts while opening sockets. This is only a
partial solution: there is a small window in which an interrupt can
arrive, leaving the descriptor open but forgotten.

* runtime/boot.scm[14.11]:
Implement new procedure, like WITHOUT-INTERRUPTS, except that it
allows keyboard interrupts.

* microcode/os2sock.c[1.2]:
Allow interrupt delivery during socket system calls.

* microcode/os2utl/makefile.cmn[1.8]:
Fix typo.

1996-05-15 Chris Hanson <[email protected]>

* edwin/process.scm[1.50]:
Fix thinko.

* edwin/fileio.scm[1.138]:
Fix bug: GROUP-INSERT-FILE! was depending on the fact that
INPUT-BUFFER/READ-SUBSTRING did not return until the argument buffer
was full -- which is no longer true.

* edwin/process.scm[1.49]:
Eliminate random heuristic buffer-size modulation from previous
change. It turns out that the behavior that necessitated this
heuristic was a bug in the runtime system.

* runtime/io.scm[14.47]:
Eliminate loop in INPUT-BUFFER/READ-SUBSTRING. When line-translation
was in effect, this loop caused this procedure to read input until the
buffer was filled. However, the procedure is supposed to return as
soon as some input is available.

* edwin/snr.scm[1.12]:
Fix thinko: point was not being moved appropriately when marking
headers backwards.

* edwin/snr.scm[1.11]:
Fix typo.

* edwin/snr.scm[1.10]:
Force the reader on-line when the user requests re-reading all of the
headers in a group. Save the database files after refreshing all of
the groups. Fix typo.

* edwin/screen.scm[1.112]:
In SCREEN-MOVE-CURSOR, forget current position of cursor in order to
force it to be moved at the end of the update. This works around bugs
in the terminal implementations: sometimes the cursor is moved as a
side-effect of some other operation. It's easier to fix this here
than to modify each implementation to guarantee that the cursor is not
moved.

1996-05-14 Chris Hanson <[email protected]>

* edwin/screen.scm[1.111]:
In SCREEN-FORCE-UPDATE, forget the cursor position, so that it will be
updated during the redisplay.

* edwin/process.scm[1.48]:
Yet more work on synchronous-subprocess I/O. The simple loop using
non-blocking I/O has atrocious performance characteristics, at least
under OS/2. It's now been replaced by something that uses blocking
I/O where possible, and modulates the buffer length to provide better
feedback for incremental output.

* edwin/os2term.scm[1.17]:
Guarantee that the presentation space for a window is set to its
normal colors at the end of a redisplay. Previously, it was often
left in the highlight colors, which would cause areas of the window to
be painted in the foreground color when they were exposed.

* edwin/screen.scm[1.110]:
Move the cursor only when its position is changed. Previously, the
cursor was being moved many times in a row to the same location. This
was caused by repeated screen updates being run as a result of
processing input events. Input events can be quite common even when
there is no typing going on, as a result of window-system operations,
mouse tracking, etc.

* edwin/edtfrm.scm[1.89], edwin/edwin.pkg[1.197],
edwin/edwin.pkg[1.196], edwin/eystep.scm[1.3],
edwin/process.scm[1.47], edwin/screen.scm[1.109],
edwin/screen.scm[1.108], edwin/snr.scm[1.9], edwin/vc.scm[1.24],
edwin/vc.scm[1.23], edwin/window.scm[1.158], edwin/window.scm[1.157]:
Change DISPLAY-STYLE in order to orthogonalize the effects that it can
have. New design allows each of the different style effects to be
selected separately.

* edwin/buffrm.scm[1.51], edwin/bufwin.scm[1.305],
edwin/window.scm[1.156]:
Change definition of UPDATE-INFERIOR! in order to centralize the
testing of DISPLAY-STYLE when deciding whether or not to update the
inferior.

* edwin/process.scm[1.46]:
When doing redisplay in a synchronous subprocess, update once before
starting I/O loop.

* runtime/runtime.pkg[14.270]:
Define new operations: CLOSE-INPUT, CLOSE-OUTPUT, INPUT-OPEN?,
OUTPUT-OPEN?, and WRITE-CHARS.

* edwin/process.scm[1.45]:
Rewrite SYNCHRONOUS-PROCESS-WAIT to reduce the amount of redisplay
activity, and to eliminate direct references to channels.

1996-05-13 Chris Hanson <[email protected]>

* runtime/fileio.scm[1.10], runtime/genio.scm[1.7],
runtime/ttyio.scm[1.5]:
Define new operations: CLOSE-INPUT, CLOSE-OUTPUT, INPUT-OPEN?,
OUTPUT-OPEN?, and WRITE-CHARS.

* edwin/process.scm[1.44]:
Fix bug: reading output from a subprocess would occasionally signal an
error because the subprocess output channel was closed by Scheme when
it detected that the subprocess had closed the other end of the pipe.
However, the "output-copier" loop continued to operate assuming that
the channel was open.

1996-05-12 Chris Hanson <[email protected]>

* edwin/os2.scm[1.32], edwin/unix.scm[1.71]:
Change popclient code to use new indicator to allow redisplay during
synchronous-subprocess execution.

* edwin/process.scm[1.43]:
Fix bug in code that writes data to subprocess -- channel was being
closed before output buffer was flushed. Also, add code to specify
whether or not redisplay is allowed during synchronous-process
execution, and default it to disallowed, because it is extremely
distracting while doing a revert-buffer in a Dired buffer.

* edwin/debug.scm[1.38]:
Wrap debugger extent with CLEANUP-POP-UP-BUFFERS. This allows the
debugger to be called at times when there are active popped-up
buffers. Previously, quitting from the debugger in this situation
would cause the previously popped-up buffer to be hidden.

* edwin/edwin.pkg[1.195], edwin/snr.scm[1.8]:
Add commands to read and write the .newsrc file.

1996-05-11 Chris Hanson <[email protected]>

* edwin/snr.scm[1.7]:
When doing certain extended server interactions, do redisplay
periodically to show changes to the user.

* edwin/os2term.scm[1.16]:
Finish changes stared with previous revision: must handle visibility
events specially while previewing events; must also handle paint
events specially. Handling of paint events is different from handling
of X expose events -- this seems to mean that when a window is
exposed, X sends the expose event first, but OS/2 sends something
other than the paint event first.

* edwin/os2.scm[1.31], edwin/unix.scm[1.70]:
Pop up a buffer showing the "popclient" output so that it is visible
while "popclient" is running. Use new popped-up buffer features to
keep it visible if an error occurs.

* edwin/prompt.scm[1.168]:
Use new procedure MAYBE-KILL-POP-UP-BUFFER.

* edwin/wincom.scm[1.120]:
Implement new procedures: MAYBE-KILL-POP-UP-BUFFER calls
KILL-POP-UP-BUFFER if its argument is the popped-up buffer.
KEEP-POP-UP-BUFFER prevents a popped-up buffer from being killed by an
enclosing CLEANUP-POP-UP-BUFFERS. POPPED-UP-BUFFER returns the
POPPED-UP buffer, if any.

* edwin/process.scm[1.42]:
Change SYNCHRONOUS-PROCESS-WAIT so that it does redisplay while it's
waiting. This allows the output from a synchronous subprocess to be
incrementally displayed as it is read.

* edwin/editor.scm[1.241], edwin/fileio.scm[1.137],
edwin/shell.scm[1.13], edwin/utils.scm[1.40]:
Eliminate CALL-WITH-PROTECTED-CONTINUATION.

1996-05-10 Chris Hanson <[email protected]>

* microcode/os2.h[1.5], microcode/os2api.h[1.9],
microcode/os2io.c[1.7], microcode/pros2fs.c[1.16]:
Change initialization code to allocate a minimum of 256 file handles
for Scheme. The old default of 20 is too small -- quickly eaten by a
small number of subprocesses in Edwin -- and worse, the default is not
a constant but depends on the method used to invoke Scheme.

The number of file handles can by dynamically changed using a new
primitive. The channel table is initialized to 1024 entries, allowing
plenty of room for growth should that be desired.

* edwin/process.scm[1.41]:
Fix thinko in process-name allocation.

1996-05-09 Chris Hanson <[email protected]>

* microcode/pruxsock.c[1.9]:
Fix typo.

* microcode/os2utl/makefile.cmn[1.7]:
Add support for sockets and GDBM under OS/2.

* microcode/os2api.h[1.8], microcode/os2cthrd.c[1.8],
microcode/os2cthrd.h[1.5], microcode/os2io.c[1.6],
microcode/os2io.h[1.3], microcode/os2pipe.c[1.7],
microcode/os2top.c[1.17], microcode/pruxsock.c[1.8]:
Add support for sockets under OS/2.

* edwin/nntp.scm[1.5]:
Eliminate support for use of "tcp" subprocess in place of real socket
support. This was used under OS/2 to work around the lack of socket
support, but did not work properly because the subprocess could not be
reliably killed. This is now moot since OS/2 socket support has been
implemented.

* microcode/version.h[11.153]:
Change release version number from 7.4.3 to 7.5, since the former will
be needed for patches to the 7.4 release, and the current sources
contain code that won't go into the 7.4 series. Also replace the
"(alpha)" with "a" to be more succinct.

1996-05-08 Chris Hanson <[email protected]>

* edwin/process.scm[1.40]:
Fix bug -- inverted meaning of input vs. output for subprocess
communications.

* edwin/cinden.scm[1.15]:
Fix bug in handling of top-level indentation. This bug was introduced
in revision 1.11.

1996-05-06 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.194], edwin/snr.scm[1.6]:
Another round of changes to the News reader.

1996-05-05 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.169]:
Make BUFFER-POINT a little smarter.

1996-05-04 Chris Hanson <[email protected]>

* edwin/dos.scm[1.36], edwin/fileio.scm[1.136], edwin/os2.scm[1.30],
edwin/unix.scm[1.69]:
Fix bug under OS/2: when overwriting a file that has its "archived"
bit cleared, the bit should be set but was not.

* runtime/datime.scm[14.14]:
Fix bug: encoding times with time-zone information was not scaling the
time-zone information to seconds as expected by the microcode.

1996-05-03 Chris Hanson <[email protected]>

* edwin/os2term.scm[1.15]:
Fix handling of VISIBILITY event so that screen contents are
immediately invalidated. This allows subsequent redisplay events to
take proper action.

* edwin/snr.scm[1.5]:
Fix bug in marking of "ignored" articles from article buffer.

* runtime/ntprm.scm[1.7], runtime/os2prm.scm[1.29]:
Fix think-o in INIT-FILE-SPECIFIER->PATHNAME for OS/2 and Windows.

* edwin/edwin.pkg[1.193]:
Add exports for "win32com".

* edwin/win32com.scm[1.6], edwin/win32com.scm[1.5]:
Change command names and documentation strings to use the noun "frame"
rather than "screen".

* edwin/os2term.scm[1.14]:
Add code to avoid writing the title-bar string except when it changes.
Otherwise it flickers annoyingly in common circumstances.

* edwin/os2com.scm[1.4]:
Fix missing variable error. Improve documentation string.

1996-04-24 Chris Hanson <[email protected]>

* edwin/nntp.scm[1.4]:
Fix some minor bugs.

* runtime/os2prm.scm[1.28], runtime/random.scm[14.15],
runtime/unxprm.scm[1.45]:
Update copyright.

* runtime/version.scm[14.169]:
Many changes subsequent to release.

* edwin/debug.scm[1.37], edwin/os2term.scm[1.13]:
Fix typo.

* runtime/defstr.scm[14.30], runtime/ed-ffi.scm[1.16],
runtime/make.scm[14.58], runtime/packag.scm[14.25],
runtime/pp.scm[14.37], runtime/random.scm[14.14],
runtime/record.scm[1.24], runtime/runtime.pkg[14.269],
runtime/unpars.scm[14.45], runtime/uproc.scm[1.9]:
Integrate generic procedure mechanism into the runtime system. This
mechanism implements a generic procedure call with good performance,
but does not define an associated class structure as is common in
object-oriented programming systems. It is, however, sufficiently
general to allow such systems to be implemented on top of it, and even
to share objects between different systems if the systems cooperate
slightly.

Much of the change here is to reorganize the cold-load sequence so
that it is possible to bootstrap the runtime system.

* runtime/ed-ffi.scm[1.15], runtime/optiondb.scm[1.4]:
Add support for "gdbm" runtime load option.

* runtime/io.scm[14.46], runtime/os2graph.scm[1.12],
runtime/runtime.pkg[14.268], runtime/x11graph.scm[1.43]:
Collect the several implementations of protection lists and merge them
together in a single place.

* runtime/dosprm.scm[1.38], runtime/ntprm.scm[1.6],
runtime/os2prm.scm[1.27], runtime/sfile.scm[14.19],
runtime/unxprm.scm[1.44]:
Implement new "init-file" procedures for maintaining a database of
files in the user's home directory. This is used by the Edwin News
reader, which needs a convenient place to save its database files.

* runtime/unxprm.scm[1.43]:
Change OS/FILE-END-OF-LINE-TRANSLATION to use new FILE-SYSTEM-TYPE
primitive to determine a more precise result.

* runtime/datime.scm[14.13], runtime/dosprm.scm[1.37],
runtime/ntprm.scm[1.5], runtime/os2prm.scm[1.26],
runtime/os2prm.scm[1.25], runtime/runtime.pkg[14.267],
runtime/unxprm.scm[1.42]:
Implement support for time-zone information in decoded-time data
type. Generalize the procedure FILE-TIME->STRING so that it generates
an RFC-822 time string (when time-zone information is available from
the microcode).

* runtime/arith.scm[1.34], runtime/fixart.scm[1.2]:
Move INT:->FLONUM from "arith" to "fixart" so that it will be
available earlier in the cold-load sequence.

* edwin/make.scm[3.91]:
Numerous changes subsequent to release.

* edwin/edwin.pkg[1.192], edwin/nntp.scm[1.3], edwin/snr.scm[1.4]:
Extensive development of News reader; too many changes to list.

* edwin/process.scm[1.39]:
Change synchronous-process code to use line translation that is
appropriate for the file associated with the process buffer, if any.
This is necessary to get newline translation correct for compressed
files.

* edwin/dos.scm[1.35], edwin/os2.scm[1.29], edwin/unix.scm[1.68],
edwin/utils.scm[1.39], edwin/vc.scm[1.22]:
Implement new procedure FILE-TIME->LS-STRING, to generate a time
string like that produced by the unix `ls' program. Change Dired and
VC to use this string where appropriate. Consequently rewrite the DOS
directory listing program to be more like that used for OS/2.

* edwin/fileio.scm[1.135], edwin/os2.scm[1.28], edwin/unix.scm[1.67]:
Change GROUP-INSERT-FILE! to accept an additional argument, which
specifies the newline translation to be used for the insertion. This
allows the compressed-file reading code to specify that the
translation being used is that appropriate for the file being
expanded. Formerly, the wrong translation was sometimes used because
the compressed file is expanded into a temporary file, which can
reside on a file system with a different translation, and the
translation appropriate for the temporary was used.

* edwin/dired.scm[1.163], edwin/dosfile.scm[1.7],
edwin/fileio.scm[1.134], edwin/unix.scm[1.66]:
Change OS/BUFFER-BACKUP-PATHNAME to accept another argument, the
buffer being backed up. This is necessary to ensure that the backup
control variables are properly referenced; formerly local bindings of
these variables would not be referenced correctly.

* edwin/edwin.pkg[1.191], edwin/linden.scm[1.125],
edwin/schmod.scm[1.38]:
Generalize lisp indentation code to support a new method for
specifying how a lisp form is to be indented. The variable
lisp-indent-regexps is an alist of regexp-method pairs, which is
searched linearly for the first regexp that matches the keyword.

This allows the "def" and "with-" rules to be implemented as special
cases of this more general mechanism.

* edwin/edwin.pkg[1.190], edwin/info.scm[1.121]:
Change Info to use a list of info directories, rather than a single
directory. This is now compatible with Emacs 19.

* edwin/curren.scm[1.121], edwin/debug.scm[1.36],
edwin/wincom.scm[1.119], edwin/xterm.scm[1.53]:
Change OTHER-SCREEN to take a "count" argument. Change uses of
OTHER-SCREEN to account for this, and to allow selection of
"invisible" windows, which will now be auto-mapped.

* edwin/edwin.pkg[1.189], edwin/sendmail.scm[1.34]:
Modularize the header-generation and mail-mode initialization so that
the relevant parts can be reused by the news reader.

* edwin/rmail.scm[1.50]:
Implement RMAIL label-manipulation commands.

* edwin/edwin.pkg[1.188], edwin/regexp.scm[1.67]:
Add some new procedures for using regular expressions on strings.

* edwin/curren.scm[1.120]:
Add optional argument to GLOBAL-WINDOW-MODELINE-EVENT! so that the
caller can specify which windows the even applies to.

* microcode/syntax.c[1.23], microcode/syntax.h[1.9]:
Updating of character-syntax code, to handle C++-style comments. This
is necessary for the new Verilog mode in Edwin. These changes require
corresponding changes in Edwin.

1996-04-23 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.187], edwin/syntax.scm[1.78]:
Fix typo.

* edwin/modefs.scm[1.150]:
Change frame-related key bindings to be compatible with Emacs 19.
This means that C-x 5 has been redefined as a prefix key, and M-x
split-window-horizontally is now bound to C-x 3 instead.

* edwin/bufcom.scm[1.101], edwin/curren.scm[1.119],
edwin/debug.scm[1.35], edwin/dired.scm[1.162],
edwin/edwin.pkg[1.186], edwin/filcom.scm[1.188],
edwin/os2com.scm[1.3], edwin/os2term.scm[1.12],
edwin/scrcom.scm[1.5], edwin/sendmail.scm[1.33],
edwin/tagutl.scm[1.55], edwin/wincom.scm[1.118],
edwin/xcom.scm[1.13]:
Change all user-visible references to the noun "screen" to use "frame"
instead, for consistency with Emacs 19.

* edwin/decls.scm[1.57], edwin/ed-ffi.scm[1.40],
edwin/edwin.pkg[1.185], edwin/loadef.scm[1.29]:
Add mode for editing Verilog programs.

* edwin/cinden.scm[1.14], edwin/linden.scm[1.124],
edwin/syntax.scm[1.77]:
Change character syntax interface to use new features implemented by
microcode. The new interface is almost like that of Lucid Emacs.

* edwin/tximod.scm[1.20]:
Add more features to Texinfo mode, to make it more like the current
Emacs version.

* edwin/manual.scm[1.12]:
Change M-x manual-entry to use same naming convention for buffers that
Emacs 19 uses.

* edwin/comint.scm[1.22]:
Change binding of M-x comint-bol from C-a to C-c C-a to match Emacs.

* cref/make.scm[1.15], cref/redpkg.scm[1.9], cref/toplev.scm[1.10],
edwin/edwin.sf[1.19]:
Change CREF program so that it does not rewrite files unless the files
they were derived from have changed.

* compiler/machines/i386/compiler.sf[1.8], cref/cref.sf[1.9],
edwin/edwin.sf[1.18], runtime/runtime.sf[14.12], sf/butils.scm[4.9],
sf/sf.sf[4.7]:
Improve SF-CONDITIONALLY to use same pathname-type defaulting that SF
does.

* microcode/version.h[11.152]:
Update version numbers for post-release changes.

* microcode/edwin.h[1.8]:
Add primitive to test data type of Edwin "mark" objects.

* microcode/ux.c[1.14]:
Add error-checking OS-dependent procedures for allocating and
deallocating memory.

* microcode/pruxfs.c[9.52], microcode/syscall.h[1.9],
microcode/ux.h[1.64], microcode/uxfs.c[1.12],
microcode/uxtop.c[1.19]:
Add primitive to allow unix systems to detect file-system type. This
is particularly useful on systems like Linux which support many
file-system types.

* microcode/Attic/dosenv.c[1.9], microcode/ntenv.c[1.13],
microcode/os2env.c[1.10], microcode/osenv.h[1.7],
microcode/prosenv.c[1.13], microcode/ux.h[1.63],
microcode/uxenv.c[1.15]:
Add time-zone information to decoded-time structure.

1996-04-10 Chris Hanson <[email protected]>

* edwin/dired.scm[1.161]:
Fix bug: dired commands that operate on multiple files were merging in
the target directory without the target device; this works fine on
Unix but not OS/2 or Windows.

1996-04-09 Stephen Adams <[email protected]>

* microcode/ntfile.c[1.5]:
Fixed the problem of not being able to (edit and) save a file that is
open for reading (usually by an error REPL). Files are now opened
allowing concurrent reads AND writes.

* microcode/ntsys.c[1.5], microcode/ntsys.h[1.6],
microcode/nttop.c[1.18]:
Changed Windows version handling so that Scheme correctly
distinguishes Windows 3.1 from Windows 95.

* runtime/ntprm.scm[1.4]:
Kludged DOS/FS-LONG-FILENAMES? to return #F for ant FAT volume because
of Windows'95 confusion about which names is the primary name and
which names is the 8.3 alias

* microcode/ntutl/scheme32.c[1.10]:
Added
#include <stdlib.h>
to get rid of warnings.

1996-04-08 Chris Hanson <[email protected]>

* microcode/memmag.c[9.62]:
Fix bug: primitives can't be conditionally defined, because the
findprim program doesn't parse the conditionals. The previous change,
which introduced a conditional primitive, broke this file on other
operating systems.

1996-04-05 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.266]:
Export *SAVE-UNCOMPRESSED-FILES?* and *UNCOMPRESSED-FILE-LIFETIME*,
which are documented in the User's Guide.

1996-04-04 Chris Hanson <[email protected]>

* edwin/xterm.scm[1.52]:
If a window is unmapped when it is selected, perhaps by deleting
another window, map and raise it.

* edwin/xterm.scm[1.51]:
Differentiate between the primary Edwin window and all other
(secondary) Edwin windows. Use distinct resource properties to
determine the geometry of each type of window. If geometry is
obtained from the resource class "Emacs", ignore the position
information when creating secondary windows.

This will make it possible to have secondary windows come up in
non-overlapping positions on the display.

* edwin/xterm.scm[1.50]:
When window is hidden, either by being obscured or unmapped, and then
revealed again, invalidate our model of the on-screen contents
immediately, so that it is repainted the next time someone writes
anything to the window.

1996-03-27 Stephen Adams <[email protected]>

* microcode/memmag.c[9.61]:
Fixed copyright date.

* microcode/memmag.c[9.60]:
Win32 version:

Made the VirtualFree/VirtualAlloc code optional and controlled by
primitives. By default it is off, since it incurs the cost of
zero-filling pages as they allocated. The main garbage collector
should turn the feature is GC was paging, but how to measure this is
not clear.

1996-03-23 Stephen Adams <[email protected]>

* microcode/cmpint.c[1.89], microcode/memmag.c[9.59],
microcode/memmag.h[1.4], microcode/ntio.c[1.12],
microcode/ntscmlib.h[1.6], microcode/ntsig.c[1.17],
microcode/ntsys.h[1.5], microcode/nttop.c[1.17],
microcode/ntutl/makefile[1.18], microcode/ntutl/scheme16.c[1.8],
microcode/ntutl/scheme16.def[1.4], microcode/ntutl/scheme16.mak[1.4],
microcode/ntutl/scheme31.c[1.7], microcode/ntutl/scheme31.def[1.3],
microcode/ntutl/scheme32.c[1.9], microcode/ntutl/scheme32.def[1.3]:
Changes to the Windows 3.1/95/NT version: auto-configuration and
better virtual memory behaviour.

There used to be two version of the library NTSCMLIB.DLL, one version
for WIN32S, and another version for NT (and '95). The WIN32S version
had a partner, NTW16LIB.DLL, to handle the 16-bit side of things.
The system was configured for Windows 3.1 or NT by copying the
appropriate version of NTSCMLIB.DLL into the same directory as
SCHEME.EXE, or putting an appropriate directory in the PATH.

The new scheme is that instead of two NTSCMLIB.DLL files and a
NTW16LIB.DLL file there will be three files:

SCHEME32.DLL The true 32 bit version (NT & '95)
SCHEME31.DLL The windows 3.1 (win32s) version
SCHEME16.DLL and its 16 bit buddy

These are no longer bound at link time. Instead, nttop.c now detects
WIN32S vs. NT and explicitly loads the appropriate version. To
support this dynamic linking, the utilities referenced via a
WIN32_SYSTEM_UTILITIES structure.

Now both SCHEME31.DLL and SCHEME32.DLL use VirtualAlloc, so the
garbage collector has been changed to de-commit and re-commit the
pages in the old half-space. Toy experiments show that roughly 30-50%
of the working set is in the old half-space.

The allocation code *could* be changed to reserve the virtual address
space of the whole heap as this would allow an extensible heap.

1996-03-23 Chris Hanson <[email protected]>

* runtime/graphics.scm[1.16]:
Fix bug: GRAPHICS-TYPE-AVAILABLE? shouldn't be signalling errors.

* edwin/rmail.scm[1.49]:
Fix bug: rmail was trying to read new mail even when called with a
filename as argument, in contradiction of the documentation string.

* edwin/grpops.scm[1.23]:
Add error check so that attempting to insert a negative number of
characters results in a tractable error rather than a SIGSEGV.

* edwin/cinden.scm[1.13]:
Fix bug: the computed indentation could be negative, which caused
Scheme to die with a SIGSEGV.

1996-03-21 Stephen Adams <[email protected]>

* edwin/edwin.pkg[1.184], edwin/win32.scm[1.5],
edwin/win32com.scm[1.4]:
Tidied the interface between WIN32-SCREENs and edwin commands.

Modified Edwin commands SET-ICON.

Added Edwin commands
SET-FOREGROUND-COLOR
SET-BACKGROUND-COLOR
SET-FONT
SET-DEFAULT-FONT
SET-SCREEN-POSITION
SHOW-SCREEN-SIZE
SHOW-SCREEN-POSITION

* win32/graphics.scm[1.10], win32/wf_user.scm[1.6],
win32/win32.pkg[1.8]:
Added new global variables WIN32/DEFINE-COLOR and WIN32/FIND-COLOR.
Adjusted graphics code to work with them.
Added new API `cover' procedure GET-WINDOW-RECT.

* microcode/ntgui.c[1.16]:
Added primitives:
WIN32-SCREEN-SET-DEFAULT-FONT!
WIN32-SCREEN-SET-FONT!
WIN32-SCREEN-SET-FOREGROUND-COLOR!
WIN32-SCREEN-SET-BACKGROUND-COLOR!

* microcode/ntscreen.c[1.23], microcode/ntscreen.h[1.12]:
Improved font handling:

. Added ability to parse a string (e.g. "Courier New bold underline 20")
into a font.
. Use this to parse MITSCHEME_FONT. Removed MITSCHEME_FONT_SIZE env
variable.
. Added primitives WIN32-SCREEN-SET-FONT and WIN32-SCREEN-SET-DEFAULT-FONT

Improved window sizing.

Previously, if the main window was launched minimized, it woudl
believe the main window should be the size of the icon, about 3x3
characters: too small to hold an error message. Now it figures out
or guesses what the size and position would have been if and
initializes to that.

1996-03-20 Chris Hanson <[email protected]>

* edwin/os2term.scm[1.11]:
Change code that selects initial font so that it tries several fonts
from a list, failing only when none of them is found. This is
desirable because one user has reported that "System VIO" isn't
available on his system.

* microcode/os2pmcon.c[1.21]:
Change code that selects initial font of console window so that it
tries several fonts from a list, failing only when none of them is
found. This is desirable because one user has reported that "System
VIO" isn't available on his system.

* microcode/os2pm.c[1.28]:
Double PM thread stack size to eliminate nasty crashes during font
dialog. Eliminate a variety of more subtle bugs in the font dialog
code.

1996-03-11 Chris Hanson <[email protected]>

* microcode/uxproc.c[1.19], microcode/uxsig.c[1.32]:
Fix bug: subprocesses were being started with SIGPIPE set to SIG_IGN.
Some programs, notably gzip, depend on SIGPIPE being set to SIG_DFL
(and don't bother to force this true themselves).

1996-03-09 Stephen Adams <[email protected]>

* runtime/unsyn.scm[14.19]:
Fixed bug whereby ((lambda (x) x) 1 (f)) is unsyntaxed as (let ((x 1)) x).

1996-03-06 Chris Hanson <[email protected]>

* edwin/screen.scm[1.107]:
Fix bug: new screens didn't update correctly under Linux (and probably
other unixes), because their first update occurred before the first
Expose event arrived, and that first update caused the NEEDS-UPDATE?
flag to be cleared. The fix is to clear NEEDS-UPDATE? only when
SCREEN-UPDATE is run.

1996-03-05 Stephen Adams <[email protected]>

* rcs/logmer.scm[1.15]:
Added a check after the FILE-ATTRIBUTES-DIRECT call. The attributes
will be #F if the file is a symlink to hyperspace. Failure to check
was causing a SIGSEGV; now it print a warning.

This still leaves the problem of symbolic link loops. I `fixed' this
in the one place it was occuring by altering the symlinks.

1996-03-04 Chris Hanson <[email protected]>

* edwin/fileio.scm[1.133]:
Fix bug that caused recentering under certain circumstances when
writing out a buffer in which require-final-newline was set.

* microcode/regex.c[1.16]:
Fix bugs that caused ^ and $ to return incorrect answers when the gap
was in specific locations. Repaginate.

* microcode/Attic/config.h[9.95], microcode/cmpauxmd/i386.m4[1.44],
microcode/s/Attic/linux.h[1.7], microcode/uxtop.c[1.18]:
Changes to allow microcode to be compiled by the Linux ELF gcc.

1996-03-03 Chris Hanson <[email protected]>

* rcs/logmer.scm[1.14]:
Trace symbolic links pointing to directories as well as those that
point to files. This is necessary to get the directories
"microcode/s" and "microcode/m" in the 7.4 tree.

1996-03-01 Chris Hanson <[email protected]>

* microcode/uxfs.c[1.11]:
Finish change that was started in revision 1.10.

* runtime/dospth.scm[1.36]:
Fix bug in previous change.

* edwin/lincom.scm[1.122]:
Doing M-x reindent-then-newline-and-indent on a blank line would
reindent that line and create a new indented line below it, leaving
indentation in the original line. The fix eliminates this unnecessary
indentation; the original line is empty after the command.

* edwin/dired.scm[1.160]:
When deleting files, determine whether a file is a directory using
`file-attributes-direct' rather than `file-directory?'. The latter
will return #t for a symbolic link pointing to a directory, in which
case the deletion will fail.

* edwin/c-mode.scm[1.54]:
In M-x c-indent-command, if point is in the line's indentation, move
it to the end of the indentation.

* edwin/rmail.scm[1.48]:
* get-pop-account-info, rmail-pop-accounts: allow arbitrary symbols to
be specified as an account password. Currently, the symbol
KERBEROS-V4 is allowed under unix systems.

* rmail-output-to-rmail-file: when creating a new rmail file, put the
header in a buffer and write the buffer out. This allows creation
of a compressed rmail file. Previously, the file would be written
with a ".gz" suffix, but not compressed.

* edwin/unix.scm[1.65]:
* os/pathname->display-string: discover pathnames that are aliases for
the home directory.

* unix/call-with-pop-client-password-options: allow Kerberos V4
passwords.

1996-02-29 Chris Hanson <[email protected]>

* edwin/dosfile.scm[1.6], edwin/unix.scm[1.64]:
In OS/TRIM-PATHNAME-STRING, allow the user to delete part of an
inserted directory and then follow it with an absolute pathname.

* runtime/pathnm.scm[14.31]:
In ENOUGH-PATHNAME, specially handle DOS network filenames, because
they might partially match to non-network filenames.

* runtime/dospth.scm[1.35], runtime/unxpth.scm[14.23]:
Don't silently ignore pathname syntax errors; signal them.

1996-02-28 Stephen Adams <[email protected]>

* edwin/dos.scm[1.34]:
Added cut and paste.

* win32/win32.pkg[1.7]:
Added clipbrd.scm and exported WIN32-CLIPBOARD-READ-TEXT and
WIN32-CLIPBOARD-WRITE-TEXT.

* win32/wf_user.scm[1.5]:
Added Win32 API functions required for clipboard commands.

1996-02-28 Chris Hanson <[email protected]>

* runtime/dospth.scm[1.34], runtime/unxpth.scm[14.22]:
Continuation of previous bug fix.

1996-02-27 Chris Hanson <[email protected]>

* edwin/unix.scm[1.63]:
Fix long-standing bug in OS/HOSTNAME.

* runtime/dospth.scm[1.33], runtime/unxpth.scm[14.21]:
Fix bug: when an environment variable expands into a string that ends
in a slash, that trailing slash must be ignored if the environment
variable is delimited by a slash.

* edwin/dosfile.scm[1.5], edwin/unix.scm[1.62]:
Fix bug: code to determine when the user begins typing a new file name
at the end of a file prompt must match the inserted file name in its
entirety; previously it could mistakenly match against a substring of
the inserted file name.

1996-02-24 Chris Hanson <[email protected]>

* microcode/os2fs.c[1.8]:
Directory reader should treat "c:\\cph" differently from "c:\\cph\\",
because the runtime system expects the former to return a listing for
the directory file itself, and the latter to return a listing of the
directory's contents.

1996-02-22 Chris Hanson <[email protected]>

* runtime/io.scm[14.45]:
Fix bug: when line translation is in effect, reading a raw
carriage-return would cause the end-index of an input buffer to become
zero, indicating that the input channel had reached end-of-file. This
is a logic error in the design of input buffers; it is fixed by
defining logical end-of-file to be when input-buffer/real-end is zero,
because the latter is unaffected by line translation.

1996-02-13 Chris Hanson <[email protected]>

* edwin/bufwiu.scm[1.30]:
Fix bug: redisplay was needlessly recentering point whenever a change
started at the first visible position of the buffer. This is rarely
necessary. This bug was deliberately introduced in revision 1.25 to
fix a more serious bug, in which the point could be left off-screen at
the end of redisplay. This change fixes both bugs, by requesting
redisplay whenever a change might affect point's position; previously
it was incorrectly assumed that this request was unnecessary.

* edwin/rmail.scm[1.47]:
Fix bug: code to find unix mail messages appended to end of RMAIL file
was failing due to incorrect regular expression.

1996-01-04 Chris Hanson <[email protected]>

* microcode/cmpint.c[1.88]:
Change `declare_builtin' to do a sorted insertion into the table, so
that a binary search works correctly.

* microcode/cmpintmd/i386.h[1.30]:
Add call to `declare_builtin' when setting up assembly-language
builtins, so that the exception handler can properly recognize when an
exception has occurred in a builtin.

* microcode/cmpint.c[1.87]:
Make sure that floating-point control word is properly initialized
under OS/2.

1995-12-19 Chris Hanson <[email protected]>

* edwin/os2.scm[1.27]:
Fix access violation caused by missing test for #f.

1995-11-26 Michael R. Blair <[email protected]>

* pcsample/pcsample.scm[1.2]:
typo within backquote jungle.

1995-11-20 Chris Hanson <[email protected]>

* edwin/kilcom.scm[1.70], edwin/kilcom.scm[1.69]:
Fix bug: when comparing interprogram-paste string to kill-ring,
compare to last string killed, not last string yanked. Otherwise,
when yanking from elsewhere in the ring, another copy of the last
string killed will be inserted in the kill ring.

1995-11-19 Stephen Adams <[email protected]>

* pcsample/load.scm[1.3]:
Add ZONES subpackage.

* pcsample/zones.scm[1.2]:
Renamed initialization procedure to INITIALIZE-PACKAGE!

* pcsample/pcsdld.c[1.4]:
Updateded documentation string.

* pcsample/pcsample.c[1.4]:
Changed %PC-SAMPLE/SET-ZONE! to incorporate a comparison with the
pre-existing value.

* pcsample/pcs.pkg[1.2]:
Added ZONES sub-package.

* rcs/mklogs.scm[1.8]:
Added PCSAMPLE and SWAT to daily logs.

1995-11-19 Chris Hanson <[email protected]>

* edwin/xterm.scm[1.49]:
Fix bug introduced in previous change to this file. This bug caused
keystrokes to be lost when they were typed ahead while the editor was
busy doing other things.

1995-11-13 Chris Hanson <[email protected]>

* edwin/debug.scm[1.34]:
Don't override the geometry specification given in the X resource
database. This can cause really unpleasant behavior.

* runtime/runtime.pkg[14.265], runtime/socket.scm[1.6],
runtime/thread.scm[1.22]:
Disable the thread timer while doing hostname lookups, as it can cause
the nameserver request to fail if the timer signal arrives while
waiting for the nameserver reply.

1995-11-12 Chris Hanson <[email protected]>

* rcs/logmer.scm[1.13], rcs/logmer.scm[1.12], rcs/logmer.scm[1.11]:
Generate more output to describe what is happening.

* rcs/mklogs.scm[1.7]:
Update with current directories, and also to use new calling
conventions for RCS-DIRECTORY-LOG.

* rcs/rcs.pkg[1.6]:
Export RCS-DIRECTORY-LOG to the global environment, since that is
where it's needed.

* rcs/logmer.scm[1.10]:
Don't regenerate RCS.log file unless at least one of the component RCS
files has changed. This will make the common case more convenient,
although it won't detect adding or removing files from the set being
merged; in those cases the RCS.log should be deleted. Also, change
the order of argument to RCS-DIRECTORY-LOG, default the output-file
argument, and change it to be interpreted relative to the directory
being merged.

1995-11-11 Chris Hanson <[email protected]>

* rcs/logmer.scm[1.9]:
When reading directory, return both the working file and the RCS file
for each entry, so that the merged log file can refer to the working
file names rather than the RCS file names.

* rcs/logmer.scm[1.8]:
Fix bug in previous change.

* rcs/logmer.scm[1.7], rcs/mklogs.scm[1.6]:
Change log merger to accept a single directory argument, and to scan
down that directory tree looking for files under RCS control. It
additionally indirects through symbolic links, finding the RCS files
for the linked files in their home directories.

* microcode/prntenv.c[1.5]:
Fix randomness in last change.

1995-11-10 Chris Hanson <[email protected]>

* edwin/dos.scm[1.33], edwin/dos.scm[1.32]:
Assume that FILE-TIME->STRING will return a plausible string under all
circumstances.

* runtime/dosprm.scm[1.36], runtime/ntprm.scm[1.3]:
Supply a default file-time string if the FILE-TIME->STRING primitive
is unable to return a meaningful answer.

* microcode/prntenv.c[1.4]:
Don't return an empty string if ctime() doesn't know how to convert
the argument -- return #F instead.

1995-11-09 Stephen Adams <[email protected]>

* microcode/uxio.c[1.36]:
Reverted previous changes.

* microcode/uxio.c[1.35]:
*Attempt* to fix OS_channel_read_load_file and
OS_channel_write_dump_file for sockets. Now it trys again if only
part of the data is provided/consumed.

BINARY-FASLOAD still failed occasionally, due to UX_read failing with
errno==EINTR. BINARY-FASLOAD is well hairy so it is not clear to me
that the usual UX_prim_check_errno would do the right thing (whatever
that is).

1995-11-08 Stephen Adams <[email protected]>

* runtime/xeval.scm[1.5]:
Fixed RCS header & copyright.

1995-11-07 Stephen Adams <[email protected]>

* runtime/chrset.scm[14.4]:
Added STRING->CHAR-SET.

1995-11-06 Chris Hanson <[email protected]>

* microcode/Attic/dosfs.c[1.5], microcode/os2fs.c[1.7],
microcode/pros2fs.c[1.15], microcode/pros2fs.c[1.14],
microcode/prosfs.c[1.12], microcode/uxfs.c[1.10]:
Reconcile various versions of file-copying primitives.

* microcode/os2pmcon.c[1.20]:
Force repainting of console window after a font change. This used to
work, but changes to console_resize caused it to break.

* microcode/os2utl/makefile.emx[1.7]:
Patch to fix arguments to emxbind.

* microcode/os2pm.c[1.27]:
Patch for EMX/GCC.

* edwin/make.scm[3.90], runtime/version.scm[14.168]:
Update for release.

1995-11-04 Chris Hanson <[email protected]>

* microcode/version.h[11.151]:
Update for release.

* runtime/char.scm[14.5]:
Fix RCS header line and copyright date.

* edwin/edwin.sf[1.17], microcode/os2pm.c[1.26],
microcode/pros2pm.c[1.18]:
Fix typo.

* runtime/os2graph.scm[1.11], runtime/runtime.pkg[14.264]:
Set the icon of each graphics window to the standard graphics icon.

* edwin/edwin.pkg[1.183], edwin/os2term.scm[1.10]:
Set the icon of each Edwin screen to the standard Edwin icon.

* microcode/os2pm.c[1.25], microcode/os2pm.scm[1.6],
microcode/pros2pm.c[1.17], runtime/os2winp.scm[1.13]:
Add primitive to destroy icons.

* microcode/os2pm.c[1.24], microcode/os2pm.scm[1.5],
microcode/pros2pm.c[1.16]:
Fix first argument to WinLoadPointer.

* microcode/pros2pm.c[1.15], microcode/pros2pm.c[1.14],
runtime/os2winp.scm[1.12]:
Fix typo: icon -> pointer.

* microcode/os2pmcon.h[1.3], microcode/os2pmcon.h[1.2],
microcode/os2pmcon.rc[1.4]:
Change icon resources to be symbolically defined.

* microcode/os2pm.c[1.23], microcode/os2pm.scm[1.4],
microcode/pros2pm.c[1.13], runtime/os2winp.scm[1.11]:
Add primitives to support loading and setting of icons.

* microcode/os2pmcon.c[1.19], microcode/os2pmcon.rc[1.3]:
Load an icon resource for the console window.

* microcode/os2utl/makefile[1.13], microcode/os2utl/makefile.cmn[1.6],
microcode/os2utl/makefile.emx[1.6],
microcode/os2utl/makefile.gcc[1.5],
microcode/os2utl/makefile.vac[1.5],
microcode/os2utl/makefile.wcc[1.6]:
Modify to customize resource files differently for scheme and
bchscheme, and to allow debug/optimize to be selected by a setting in
the main makefile.

* microcode/os2pmcon.c[1.18]:
Disable the "Copy" menu item when the marked region is not active.
Improve logic that decides when it is active. Fix fencepost error in
marked region determination.

* microcode/os2pm.c[1.22], microcode/os2pm.scm[1.3],
microcode/pros2pm.c[1.12]:
Change OS2_menu_set_item_attributes to return the success value that
the message-send returns.

1995-11-03 Stephen Adams <[email protected]>

* runtime/arith.scm[1.33]:
In INT:->STRING
. removed a DEFINE-INTEGRABLE that was causing unwanted code duplication,
. Optimized PRINT-SMALL to use fixnum arithmetic when quotient is
small enough. Gives 2x speedup for NUMBER->STRING on fixnums,

* runtime/char.scm[14.4]:
Changed DIGIT->CHAR and CHAR->DIGIT to give better error messages and
to be faster.

1995-11-03 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.182], edwin/os2term.scm[1.9]:
Use WinAlarm instead of DosBeep for ^G noise.

* runtime/os2winp.scm[1.10]:
Add some new primitives and events.

* microcode/os2msg.h[1.13], microcode/os2pm.c[1.21],
microcode/os2pm.h[1.12], microcode/os2pm.scm[1.2],
microcode/os2pmcon.c[1.17], microcode/os2pmcon.rc[1.2],
microcode/pros2pm.c[1.11]:
* Reorganize the PM interface to encapsulate PM event messages and send
them to the window's event qid in their original format. This
simplifies the process of adding new event types, and allows the
window's owner to decide what is relevant information.

* Add some new interface calls to support mouse tracking and pop-up
menus.

* Implement a mechanism to mark characters with the mouse in the
console window, and a Copy command to copy them to the clipboard.

* microcode/os2xcpt.c[1.6]:
Fix formatting of error message.

* microcode/os2io.c[1.5]:
Fix bug: don't signal an error when the type of a file handle can't be
determined. Instead, just treat it like a pipe, which is
operationally the least common denominator.

* microcode/os2msg.c[1.10], microcode/pros2io.c[1.5]:
Fix timing bug in inter-thread communications. This bug occurs when
two threads read the same tqueue simultaneously, which violates the
assumption that each tqueue is read by only one thread. This fix is a
kludge that will be replaced later by a redesigned communications
model.

1995-11-01 Chris Hanson <[email protected]>

* runtime/packag.scm[14.24], runtime/packag.scm[14.23]:
Add ability to override default selection of constructor and loader
files.

* edwin/make.scm[3.89]:
Save the operating-system-specific loading files under separate names,
so that multiple operating systems may be supported from the same
build-directory.

1995-10-31 Chris Hanson <[email protected]>

* edwin/edwin.sf[1.16], edwin/edwin.sf[1.15], edwin/edwin.sf[1.14],
edwin/edwin.sf[1.13], edwin/make.scm[3.88], edwin/make.scm[3.87]:
Save the operating-system-specific loading files under separate names,
so that multiple operating systems may be supported from the same
build-directory.

* runtime/packag.scm[14.22]:
Add ability to override default selection of constructor and loader
files.

* edwin/dos.scm[1.31]:
Various listing-switches variables must accept strings, and allow
themselves to be modified.

* edwin/dired.scm[1.159]:
Implement s command like that in Emacs 19.

* edwin/diros2.scm[1.2], edwin/os2.scm[1.26]:
Implement M command for Dired. Change Dired to show system/hidden
files only when the "a" listing switch is given; by default these
files are hidden. Implement S command to toggle the switch off and
on.

* microcode/pros2fs.c[1.13], runtime/os2prm.scm[1.24]:
Change the FILE-INFO primitive to return two additional items: the
attribute bits and the allocated file length.

1995-10-30 Chris Hanson <[email protected]>

* microcode/os2utl/makefile.wcc[1.5]:
A variety of dependency changes corresponding to changes in the source
files. Also, reconfigure to make debugging output the default, rather
than optimized output.

* microcode/os2utl/makefile.cmn[1.5],
microcode/os2utl/makefile.emx[1.5],
microcode/os2utl/makefile.vac[1.4]:
A variety of dependency changes corresponding to changes in the source
files.

* microcode/os2pmcon.c[1.16]:
Implement a variety of new features: a menu bar, a warning dialog on
the "close", an "about" box, and a font-setting dialog.

* microcode/os2msg.h[1.12], microcode/os2pm.c[1.20],
microcode/os2pm.h[1.11], microcode/pros2pm.c[1.10]:
Reorganize the OS/2 PM interface so that most of the interface
procedures are automatically generated from templates by a Scheme
program. This dramatically reduces the overhead required to implement
a new PM procedure, or to modify the interface of an old one.

* microcode/pros2fs.c[1.12]:
Supply missing casts that are needed by IBM compiler.

* microcode/os2.h[1.4]:
Force inclusion of all possible interesting OS/2 header information.
It's too much of a pain trying to restrict this information.

* microcode/os2.c[1.7]:
Add newlines so that error messages format better.

* microcode/cmpauxmd/i386.m4[1.43]:
Fix generation of .386p and .model declarations; they must always be
supplied with Intel-style assemblers.

1995-10-28 Chris Hanson <[email protected]>

* runtime/ntprm.scm[1.2]:
Change support for user-name and home directory so that it uses the
environment variables that are being set in our NT configuration.
Also, add better heuristic methods for discovering this information
when it is not supplied in the environment variables.

* microcode/ntfs.c[1.10]:
Fix typos.

* microcode/pros2fs.c[1.11]:
Fix typo.

* runtime/os2prm.scm[1.23], runtime/sfile.scm[14.18],
runtime/unxprm.scm[1.41]:
Move COPY-FILE into the operating-system-specific files. Both OS/2
and NT provide API calls to implement this operation, and these calls
do a better job than is possible with the previous code. (For
example, the OS/2 call also copies extended attributes.)

* runtime/dosprm.scm[1.35], runtime/ed-ffi.scm[1.14],
runtime/runtime.pkg[14.263]:
New file "ntprm.scm" has Win32 primitive interface, which is now
different from the DOS primitive interface.

* microcode/pros2fs.c[1.10]:
Guarantee that target file of copy operation is writable.

* microcode/ntfs.c[1.9], microcode/prntfs.c[1.5]:
Implement new primitives: NT-COPY-FILE, NT-GET-FILE-ATTRIBUTES, and
NT-SET-FILE-ATTRIBUTES.

* microcode/pros2fs.c[1.9], microcode/pros2fs.c[1.8]:
Implement new primitive OS2-COPY-FILE.

1995-10-27 Chris Hanson <[email protected]>

* microcode/pros2fs.c[1.7]:
Implement new primitive OS2-COPY-FILE.

* microcode/os2api.h[1.7]:
Add DosCopy API call.

* runtime/dosprm.scm[1.34]:
Use new Win32 volume-information primitive to properly implement
DOS/FS-DRIVE-TYPE and DOS/FS-LONG-FILENAMES?. Also tweak pagination
of environment-variable code.

* microcode/Attic/prdosfs.c[1.4], microcode/prntfs.c[1.4]:
Implement Win32 primitive to get information about a disk volume.
This information will be used by the runtime system and Edwin to make
decisions about how to form filenames and what end-of-line translation
to use.

1995-10-25 Chris Hanson <[email protected]>

* edwin/dos.scm[1.30]:
Fix typo.

* microcode/cmpauxmd/i386.m4[1.42], microcode/ntutl/makefile.wcc[1.3],
microcode/os2utl/makefile.wcc[1.4]:
Win32 needs ".386" and ".model" declarations.

* edwin/dosfile.scm[1.3]:
*** empty log message ***

* edwin/decls.scm[1.56]:
Add new file "dosfile.scm".

* edwin/ed-ffi.scm[1.39], runtime/ed-ffi.scm[1.13]:
Corrections so that this information matches existing files.

* microcode/nttop.c[1.16]:
Flush copyright notice. Screw the compiler vendors.

* edwin/dos.scm[1.29], edwin/dosfile.scm[1.4], edwin/dosfile.scm[1.2],
edwin/edwin.ldr[1.56], edwin/edwin.pkg[1.181], edwin/os2.scm[1.25],
edwin/os2.scm[1.24]:
Merge common parts of DOS/WIN32 and OS2 file-name customization.

* edwin/snr.scm[1.3], edwin/unix.scm[1.61]:
Remove definition of OS/NEWSRC-FILE-NAME, moving it to OS-specific
files.

* runtime/dosprm.scm[1.33], runtime/os2prm.scm[1.22]:
Rename OS2/FS-foo to DOS/FS-foo and supply definitions for DOS/WIN32
as well as OS/2. This enables sharing of the filename customization
code in Edwin.

1995-10-24 Chris Hanson <[email protected]>

* edwin/dos.scm[1.28], edwin/edwin.pkg[1.180],
runtime/dosprm.scm[1.32], runtime/os2prm.scm[1.21]:
Changes to get Win32 system working again.

* microcode/ntutl/makefile[1.17]:
Supply missing dependencies.

* microcode/ntutl/bch-cl3.lst[1.7], microcode/ntutl/scm-cl3.lst[1.7]:
Supply missing filename.

* microcode/nttop.c[1.15]:
Bug fix: too little memory allocated for OS_Variant string, causing
non-local memory problems later. Also changed name and fixed
OS_Variant string to be consistent with new spec.

* microcode/Attic/config.h[9.94], microcode/Attic/oscond.h[1.21],
microcode/Attic/posixtyp.h[1.13], microcode/bchdmp.c[9.82],
microcode/cmpauxmd/i386.m4[1.41], microcode/cmpauxmd/makefile[1.6],
microcode/cmpauxmd/makefile[1.5], microcode/cmpintmd/i386.h[1.29],
microcode/memmag.h[1.3], microcode/ntfs.c[1.8],
microcode/ntgui.c[1.15], microcode/ntio.c[1.11],
microcode/ntscmlib.h[1.5], microcode/ntscreen.h[1.11],
microcode/nttrap.c[1.11], microcode/nttty.c[1.5],
microcode/ntutl/makefile.wcc[1.2], microcode/ntutl/ntgui.rc[1.9],
microcode/ntutl/scheme31.c[1.6], microcode/ntutl/scheme32.c[1.8],
microcode/osio.h[1.11], microcode/outf.c[1.9],
microcode/prntfs.c[1.3], microcode/s/Attic/nt.m4[1.2],
microcode/term.c[1.12], microcode/utils.c[9.69]:
Changes to allow Win32 microcode to be compiled by the Watcom C
compiler.

1995-10-23 Chris Hanson <[email protected]>

* runtime/dosprm.scm[1.31], runtime/dospth.scm[1.32],
runtime/dospth.scm[1.31], runtime/os2prm.scm[1.20],
runtime/os2prm.scm[1.19], runtime/unxprm.scm[1.40]:
Implement new operation OS/FILE-END-OF-LINE-TRANSLATION, which is used
to determine appropriate line-translation by interrogating the file
system to determine its type. Currently this is interesting only for
OS/2, in which it is common to mount unix file systems.

* microcode/os2fs.c[1.6]:
Change the DRIVE-TYPE primitive to return mount-point information for
NFS drives. This information will be used by the runtime system to
disable end-of-line translation for unix file systems.

1995-10-19 Chris Hanson <[email protected]>

* runtime/rgxcmp.scm[1.107]:
Add caching to RE-COMPILE-STRING, RE-COMPILE-CHAR-SET, and
RE-COMPILE-PATTERN. This should clear up several small but noticeable
pauses.

1995-10-18 Chris Hanson <[email protected]>

* edwin/dired.scm[1.158]:
Implement M-x dired-create-directory and bind it to #\+.

* runtime/dosprm.scm[1.30], runtime/unxprm.scm[1.39]:
Change MAKE-DIRECTORY and DELETE-DIRECTORY to strip off any trailing
slash from the filename before giving it to the primitive. Previously
these were forcing a trailing slash onto the filename. Most unix
implementations don't care about this, but Linux rejects the old
behavior, and the new behavior is more "correct", in the sense that
this is an operation on the file that is the directory.

* runtime/dospth.scm[1.30], runtime/unxpth.scm[14.20]:
Change definition of DIRECTORY-PATHNAME-AS-FILE so that it does
nothing when the argument is already in "file" form. This makes it a
true inverse to PATHNAME-AS-DIRECTORY.

1995-10-17 Chris Hanson <[email protected]>

* microcode/os2utl/makefile.cmn[1.4],
microcode/os2utl/makefile.emx[1.4],
microcode/os2utl/makefile.gcc[1.4],
microcode/os2utl/makefile.wcc[1.3]:
Miscellaneous changes to OS/2 makefiles.

1995-10-16 Chris Hanson <[email protected]>

* microcode/os2utl/makefile.cmn[1.3],
microcode/os2utl/makefile.emx[1.3],
microcode/os2utl/makefile.gcc[1.3],
microcode/os2utl/makefile.vac[1.3],
microcode/os2utl/makefile.wcc[1.2]:
Fix usage of DEL command that assumed 4OS2.

1995-10-15 Chris Hanson <[email protected]>

* microcode/os2pm.h[1.10]:
Supply missing prototype.

* microcode/Attic/oscond.h[1.20], microcode/Attic/posixtyp.h[1.12],
microcode/bchmmg.c[9.91], microcode/bchutl.c[1.7],
microcode/cmpintmd/i386.h[1.28], microcode/os2env.c[1.9],
microcode/os2thrd.c[1.5], microcode/os2top.c[1.16],
microcode/os2utl/config.cmd[1.3], microcode/os2utl/makefile[1.12],
microcode/os2utl/makefile.cmn[1.2],
microcode/os2utl/makefile.emx[1.2],
microcode/os2utl/makefile.gcc[1.2],
microcode/os2utl/makefile.vac[1.2], microcode/prosproc.c[1.16]:
Add conditionalizations for Watcom C/C++ running under OS/2.

* microcode/bchdmp.c[9.81]:
Fix conditionalizations to support EMX/GCC and Watcom C/C++ under
OS/2.

* microcode/os2cthrd.c[1.7]:
Fix typo that prematurely deallocated a message buffer.

* microcode/cmpauxmd/makefile[1.4]:
Eliminate rule to generate OS/2 assembly-language file, as it is now
generated during compilation.

1995-10-14 Chris Hanson <[email protected]>

* microcode/cmpauxmd/i386.m4[1.40]:
Reconditionalize to separate use of Intel syntax from DOS
conditionalization; needed using Watcom assembler under OS/2. Add
other conditionalizations for Watcom assembler/compiler.

1995-10-12 Stephen Adams <[email protected]>

* runtime/numint.scm[1.5]:
Fixed bug in MAKE-ATAN-OPERATOR.

1995-10-12 Chris Hanson <[email protected]>

* edwin/rmail.scm[1.46], edwin/unix.scm[1.60]:
Fix typo in previous change.

* edwin/rmail.scm[1.45], edwin/unix.scm[1.59]:
Change so that RMAIL converts the POP password FILE pathname to an
absolute namestring, so that the OS-specific code doesn't have to do
this.

* edwin/os2.scm[1.23]:
Change to support (FILE <filename>) password option for POP mail.

* edwin/unix.scm[1.58]:
Change to support (FILE <filename>) password option for POP mail.
Also add support for Debian popclient program, which has different
argument options than regular popclient.

* edwin/rmail.scm[1.44]:
Add option to allow the user to specify a file that contains the POP
password, rather than being prompted for it.

1995-10-09 Chris Hanson <[email protected]>

* microcode/os2utl/config.cmd[1.2], microcode/os2utl/makefile[1.11]:
Reorganize makefile to allow it to be easily configured for different
compilers. Now supports IBM Visual Age C++, IBM C Set++/2, EMX/GCC,
and GCC/2. Watcom support will be added shortly.

* microcode/bchdmp.c[9.80], microcode/bchmmg.c[9.90],
microcode/bchutl.c[1.6], microcode/cmpintmd/i386.h[1.27],
microcode/os2env.c[1.8], microcode/os2proc.c[1.3],
microcode/os2thrd.c[1.4], microcode/os2top.c[1.15],
microcode/os2xcpt.c[1.5], microcode/prosproc.c[1.15]:
Add conditionalizations for EMX/GCC under OS/2.

1995-10-08 Chris Hanson <[email protected]>

* microcode/os2utl/makefile[1.10]:
Changes to get this to work with Visual Age C++.

* microcode/Attic/config.h[9.93]:
Fix bug: define HEAP_FREE for OS/2. The procedure `free' has changed
in the most recent release of the IBM C compiler, and barfs when it is
handed a null pointer. Previously, it did nothing -- but it had not
been my intention to take advantage of this behavior.

* microcode/ansidecl.h[1.4], microcode/cmpint.c[1.86],
microcode/outf.c[1.8]:
Test __IBMC__ in addition to __STDC__ because the IBM OS/2 C compiler
defines __STDC__ to mean "strict ANSI" rather than "ANSI features
supported".

* microcode/bchmmg.c[9.89], microcode/memmag.c[9.58]:
Change order of #include files, so that "config.h" can override
default definition of HEAP_FREE in "memmag.h".

1995-10-06 Chris Hanson <[email protected]>

* edwin/dired.scm[1.157]:
Dired mode should not be case sensitive; this was changed between
Emacs 18 and 19 and the case-insensitive default makes more sense.

* microcode/s/Attic/linux.h[1.6]:
Retract the most recent changes to get Linux ELF binaries to work.
These changes do not and cannot work, because signal handlers cannot
be run while the special Scheme segment registers are in use. The
reason is that the signal handlers are registered as 32-bit offsets,
and the associated segment descriptors are not registered with those
offsets; when the signal arrives, the offset is used with whatever
segment descriptor happens to be in the CS register. When the Scheme
segment descriptors are in place, this offset is meaningless and
causes Scheme to die immediately with a SIGSEGV.

One possible workaround for this problem would be to re-register the
signal handlers whenever the segment registers are hacked, but this is
very expensive in time, and the Scheme<->C interface is already too
slow. The only other feasibility is to get the Linux kernel changed
so that signal handlers are invoked in a known segment without regard
to the contents of CS at the time of the signal; but although this is
a sensible idea, it's necessary to convince the kernel developer's of
it's desirability, and meanwhile the existing Linux installations will
not work.

* microcode/cmpauxmd/i386.m4[1.39]:
Tweaks to previous change.

1995-10-05 Chris Hanson <[email protected]>

* microcode/Attic/config.h[9.92], microcode/s/Attic/linux.h[1.5]:
Change conditionalization for Linux ELF so that it is set in a single
place. This simplifies building a non-ELF binary if desired.

* microcode/Attic/config.h[9.91], microcode/cmpauxmd/i386.m4[1.38],
microcode/cmpintmd/i386.h[1.26], microcode/s/Attic/linux.h[1.4],
microcode/uxtop.c[1.17]:
Implement changes needed for Linux ELF binary format. This format,
unlike the older a.out format, translates the data segment to begin at
0x08000000, and additionally changes the calling conventions so that
returned structures are allocated by the caller and passed in as
pointers. We fix the first problem by extending the win32s segment
register manipulation to also be used with Linux ELF. The second
problem is fixed by extending the OS/2 assembly-language patches to
also cover Linux ELF.

* microcode/cmpint.c[1.85]:
The Free register can't be compared to the value in REGBLOCK_MEMTOP
unless it is translated from a "C" address to a "Scheme" address.
This makes a difference on the i386 where we sometimes use the segment
registers in a way that makes these two representations different.

1995-10-04 Chris Hanson <[email protected]>

* microcode/Attic/config.h[9.90]:
Merge 8.0 and 7.4 versions of this file.

1995-10-03 Chris Hanson <[email protected]>

* edwin/os2.scm[1.22]:
Change compressed-file support to match changes to unix support.

* edwin/fileio.scm[1.132], edwin/unix.scm[1.57]:
Make sure that the value from GROUP-INSERT-FILE! is returned by
%INSERT-FILE.

* edwin/unix.scm[1.56]:
Change encoded file I/O methods to generate messages to indicate their
activity. Change READ-COMPRESSED-FILE to uncompress the file to a
temporary file, then read the temporary file into the buffer, as this
makes it possible to read larger files without exhausting the heap.

* edwin/fileio.scm[1.131]:
Don't generate file read/write messages when using special file I/O
methods. It is expected that these methods will have appropriate
messages of their own.

1995-10-01 Chris Hanson <[email protected]>

* microcode/cmpauxmd/i386.m4[1.37], microcode/s/Attic/linux.h[1.3]:
Patches to get the microcode to compile properly on Linux ELF
systems.

1995-09-29 Chris Hanson <[email protected]>

* runtime/cpress.scm[1.7]:
Performed by SRA: Add some declarations to increase performance.

1995-09-28 Chris Hanson <[email protected]>

* edwin/info.scm[1.120]:
Change code to look for encoded files or ".info" suffix. Add switch
to disable selection highlighting (GJS likes selections but not
highlighting).

* edwin/fileio.scm[1.130]:
Add extra argument to GET-PATHNAME-OR-ALTERNATE, to allow it to be
used in place of FILE-EXISTS?.

* runtime/hashtb.scm[1.22]:
Change interrupt locking of COMPUTE-KEY-HASH to avoid turning off the
GC interrupt. This was causing fatal lossage for BDC.

* edwin/unix.scm[1.55]:
Apparently the unix definition of completion-ignored-extensions was
missing all of the standard Scheme extensions.

1995-09-27 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.179], edwin/unix.scm[1.54], edwin/xterm.scm[1.48]:
Implement X selection mechanism for doing cut and paste between Edwin
and other X windows. This change requires recent changes to the
microcode.

There appears to be a bug in the implementation of the INCR protocol
for receiving large selections -- after working on this for a day, I'm
giving up and leaving it broken, since it will probably never be
used.

* microcode/x11base.c[1.61]:
More changes for selection support. These changes are required for
the current Edwin code.

1995-09-25 Stephen Adams <[email protected]>

* win32/graphics.scm[1.9]:
Fixed bug with windows closed by user between last GC and exiting.

* win32/dibutils/dibutils.h[1.2]:
Put in MIT copyright notice.

* win32/dibutils/dibutils.c[1.2]:
Fixed bug in DeleteDIB.
Rewrote loop to speed up DIBSetPixelsUnaligned by 2x-3x.
Put in MIT copyright notice.

1995-09-25 Chris Hanson <[email protected]>

* edwin/dired.scm[1.156]:
Handle symbolic link listings specially -- they require extra parsing
to extract the file name.

* microcode/x11base.c[1.60]:
Add primitive to perform XSelectInput library call.

1995-09-18 Chris Hanson <[email protected]>

* microcode/x11base.c[1.59], microcode/x11base.c[1.58]:
Implement some new primitives to support X selections.

* microcode/artutl.c[1.12], microcode/extern.h[9.53],
microcode/object.h[9.46], microcode/prims.h[9.45],
microcode/utils.c[9.68], microcode/x11graph.c[1.34],
microcode/x11term.c[1.24]:
Add mechanism to support conversion of primitive arguments from Scheme
integers to C `unsigned long' integers.

1995-09-15 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.178], edwin/xterm.scm[1.47]:
Add option to ignore the button events associated with a click that
selects the window.

* microcode/interp.c[9.85]:
Previous attempt to implement a mechanism to restore the signal mask
when aborting to the interpreter was flawed: the signal mask was saved
once, restored on the first abort, and left unchanged after that.
The flaw is repaired by re-saving the signal mask after every abort.

1995-09-13 Chris Hanson <[email protected]>

* edwin/dos.scm[1.27], edwin/filcom.scm[1.187],
edwin/fileio.scm[1.129], edwin/os2.scm[1.21],
edwin/process.scm[1.38], edwin/unix.scm[1.53]:
Changes dealing with encoded files:

1. Appending to an encoded file works by reading the file into a
temporary buffer, appending the text, and writing it back out.

2. Line translation is handled for encoded files the same way it is
for unencoded files.

3. Doing I/O to non-encoded files, if the file doesn't exist, an
encoded file is used in its place if available.

* runtime/process.scm[1.18], runtime/process.scm[1.17]:
Change SUBPROCESS-I/O-PORT to allow setting of input and output line
translation independently.

* runtime/genio.scm[1.6]:
Change MAKE-GENERIC-I/O-PORT to allow setting of input and output line
translation independently.

* edwin/rmail.scm[1.43], edwin/rmail.scm[1.42]:
Always write RMAIL and unix mail files with line-translation disabled.
Scheme will read such files fine, and this simplifies sharing of the
files between operating systems.

* edwin/debuge.scm[1.51], edwin/fileio.scm[1.128]:
Replace Scheme variables *TRANSLATE-FILE-DATA-ON-INPUT?* and
*TRANSLATE-FILE-DATA-ON-OUTPUT?* with corresponding editor variables.
This allows the variables to be overridden on a per-buffer basis.

1995-09-11 Chris Hanson <[email protected]>

* edwin/prompt.scm[1.167]:
Fix bug in previous change.

* edwin/prompt.scm[1.166]:
Add error-control to the prompt completion code. If any of the
completion operations signals an error, the error will be caught and
the user informed that the typein string is in error. This is
particularly useful for such things as pathnames, which have a fairly
restricted syntax.

* runtime/dospth.scm[1.29], runtime/dospth.scm[1.28],
runtime/error.scm[14.48], runtime/error.scm[14.47],
runtime/error.scm[14.46], runtime/runtime.pkg[14.262],
runtime/unxpth.scm[14.19]:
Add new condition type ILLEGAL-PATHNAME-COMPONENT so that pathname
parsing errors can be caught.

1995-09-05 Stephen Adams <[email protected]>

* runtime/usrint.scm[1.15]:
Fixed call to ERROR:WRONG-TYPE-DATUM to pass correct number of
arguments.

1995-08-29 Stephen Adams <[email protected]>

* runtime/unsyn.scm[14.18]:
Added feature where (ACCESS <name> <system-global-environment>) is
unsyntaxed as <name> if UNSYNTAXER:ELIDE-GLOBAL-ACCESSES? is non-false
and there are no shadowing bindings.

This is slightly imperfect because the unsyntaxer cant know about
names bound in the scode that surrounds the expression that was
initially passed to UNSYNTAX. Perhaps these names should be a
parameter. Debuggers could then augment the bound names with names
from the environment (or perhaps unsyntaxing should be done with
reference to an environment).

The feature is currently OFF by default, but I envision it being
necessary for sanity as more and more IEEE/R4RS operators are
integrated as global accesses (so that the compiler knows that it can
optimize them).

1995-08-20 Stephen Adams <[email protected]>

* runtime/numint.scm[1.4]:
Changed the make-<mumble>-operator procedures to use arity dispatched
procedures.

1995-08-08 Stephen Adams <[email protected]>

* pcsample/pcsample.c[1.3], pcsample/pcsdld.c[1.3]:
Name change.

* pcsample/pcsample.c[1.2], pcsample/pcsdld.c[1.2]:
Added time `zones'.

* runtime/sysclk.scm[14.3]:
Added WITH-TIMINGS, a general procedure timing device.

* runtime/runtime.pkg[14.261]:
Export WITH-TIMINGS.

1995-08-06 Stephen Adams <[email protected]>

* runtime/pp.scm[14.36]:
Moved call of NEWLINE in PP so that (1) there is only one call to
NEWLINE, and (2) the newline is output after any warnings that may
have been issued during unsyntaxing.

1995-08-04 Stephen Adams <[email protected]>

* wabbit/wabbit.sf[1.2]:
Update package constructor & loader file name conventions.

1995-08-02 Stephen Adams <[email protected]>

* runtime/random.scm[14.13]:
Replace INT:INTEGER? by faster EXACT-INTEGER?

1995-08-02 Chris Hanson <[email protected]>

* sf/usiexp.scm[4.35]:
When an expander inserts multiple references to an operand, insert a
LET so that the operand is only bound once.

1995-08-01 Chris Hanson <[email protected]>

* runtime/io.scm[14.44]:
Fix weird bug in OUTPUT-BUFFER/WRITE-SUBSTRING. This bug only
occurred when line-translation was used, and it caused the system to
hang during some writes. There was some associated anomalous behavior
that is not yet explained.

1995-07-29 Stephen Adams <[email protected]>

* rcs/logmer.scm[1.6]:
Changed to use ENOUGH-PATHNAME for reporting the file names. The
previous version was using the pathname-directory list and losing
information. There was also a #F/() bug in this code.

1995-07-28 Stephen Adams <[email protected]>

* pcsample/load.scm[1.2]:
Added kludge to get around a gratuitous name change between 7.4 and 8.0

1995-07-27 Stephen Adams <[email protected]>

* runtime/scomb.scm[14.14]:
Added INDEX-FIXNUM? and new representation for unspecified conditional
branch.

* runtime/list.scm[14.21], runtime/string.scm[14.12],
runtime/vector.scm[14.6]:
General improvement of library procedures:

Improved error checking. More procedures have checks. Code is
organized to avoid duplicate checks and to reduce bloat from
integrated GUARANTEE-* procedures. Makes use of new INDEX-FIXNUM?
predicate.

Replaced some recurive algorithms by iterative equivalents.

New procedure: VECTOR-APPEND

* runtime/udata.scm[14.17]:
Added COMPILED-CODE-BLOCK/MARKED-START which returns the index that
COMPILED-CODE-BLOCK/CONSTANTS-START used to.
COMPILED-CODE-BLOCK/CONSTANTS-START now parses over the linkage
section.

* runtime/scomb.scm[14.13]:
*** empty log message ***

* runtime/unpars.scm[14.44]:
The debugging information have been completely overhauled for the new
compiler.

Compiled files (.com files) now countain a COMPILED-MODULE object.
Debugging information is accessed by a DBG-LOCATOR, and the located
files must contains a DBG-WRAPPER with corresponding timestamps.
These objects also contain a version which allows safe extension of
the dbg information.

DBG-BLOCKs now contain access paths which describe how to find the
value for the bindings (they used to describe the inverse, i.e. the
layout of the object).

DBG-PROCEDURES have been streamlined to get lambda list information
from the source code.

DBG-VARIABLES are implemented as pairs to save on storage.

Improved error message for ENVIRONMENT-* operations.

Now there is only one kind of compiled environment which contains a
root object and a DBG-BLOCK. The access paths in the DBG-BLOCK are
relative to the root object.

The access paths are evaluated by a stack machine which understands a
fixed vocabulary of operations and 1- and 2- place primitives.

CCENV/LOOKUP and CCENV/ASSIGN! now give an unbound variable error if
he variable is not bound. They used to return an unavailable
object (currently the symbol "??").

CCENV/ARGUMENTS tries to be clever with #!OPTIONAL arguements - an
assignment trap (i.e. default-object?) determines the number of
arguments provided that the previous argument is either required or
available.

* microcode/Attic/config.h[9.89]:
Define the HPPA magical SHARP_F.

* microcode/pruxenv.c[1.16]:
Implement INSTRUCTION-ADDRESS->COMPILED-CODE-BLOCK.

* microcode/uxtrap.c[1.26]:
Better heuristic location of compiled code blocks.

* microcode/sdata.h[9.33]:
Arrange that GLOBAL_ENV is #F and END_OF_CHAIN is different for any
representation choice of #F.

* microcode/purify.c[9.55]:
Use EMPTY_WEAK_CHAIN.

* microcode/option.c[1.42], microcode/option.h[1.11]:
Added option -empty-list-eq-false.

1995-07-26 Stephen Adams <[email protected]>

* microcode/load.c[9.37]:
1. New FASL versions.
2. Used outf_error in place of fprintf

* microcode/gccode.h[9.54]:
Changed for split fixnum tags.

* microcode/fasload.c[9.81]:
Added code to fix '() according to #F = '() or #F != '().

* microcode/cmpgc.h[1.29]:
Improved heuristic for identifying compiled code blocks.

* microcode/bchmmg.c[9.88]:
Use EMPTY_WEAK_CHAIN for weak pair chain instead of EMPTY_LIST.

* microcode/extern.h[9.52]:
Added Debug_Stack_Trace and Debug_Print.

* microcode/debug.c[9.47]:
Changed for #F/().

* microcode/boot.c[9.96]:
Merged changes from OS2 and OS2 and new tag scheme.

1995-07-25 Stephen Adams <[email protected]>

* microcode/x11base.c[1.57]:
Attempt to fix Hal's SWAT+PPP problem.

1995-07-24 Chris Hanson <[email protected]>

* edwin/os2.scm[1.20]:
Fix bug in INSERT-DIRECTORY that caused Dired buffer to get scrambled
when using M-x dired-do-rename.

1995-07-19 Chris Hanson <[email protected]>

* runtime/random.scm[14.12]:
Must use TYPE option with NAMED option.

* runtime/random.scm[14.11]:
Change representation of random-state objects to allow them to be
saved and restored using fasdump/fasload.

1995-07-17 Stephen Adams <[email protected]>

* runtime/infutl.scm[1.58]:
Implemented new version of the uncompressor. In addition to being
faster, this version avoids the use of FLUID-LETting global bindings
and a consequent re-entrancy bug.

1995-07-12 Stephen Adams <[email protected]>

* sf/pthmap.scm[4.3]:
Added `unspecific' to the end of the file so that it may be loaded
into an interpreted runtime band without causing an error from the
reference trap that was returned ast the value of the last expression.

* cref/toplev.scm[1.9]:
During output of constructor and loader source files, fluid-let
*UNPARSER-LIST-BREADTH-LIMIT* and *UNPARSER-LIST-DEPTH-LIMIT* to #F to
avoid illegal triuncated source code.

1995-07-11 Chris Hanson <[email protected]>

* edwin/dos.scm[1.26], edwin/os2.scm[1.19], edwin/unix.scm[1.52]:
New implementation of OS/TRIM-PATHNAME-STRING takes second argument
(prefix to trim off) and tests to see if the prefix should be removed
or retained. This changes behavior in some unusual cases, but allows
the \\foo\bar notation to be used on DOS/OS2/NT.

* edwin/filcom.scm[1.186], edwin/filcom.scm[1.185]:
Change interface with OS/TRIM-PATHNAME-STRING to pass that procedure a
second argument, which is the prefix string that is to be trimmed off.

* runtime/dospth.scm[1.27], runtime/dospth.scm[1.26]:
Install kludge to handle \\foo\bar notation.

* sf/subst.scm[4.15]:
Fix think-o in previous change.

1995-07-10 Stephen Adams <[email protected]>

* runtime/defstr.scm[14.29]:
Added a few colons to error messages because I spent five minutes
trying to understand a message that with the particular irritants
happened to mean meant something different without the colon.

1995-07-07 Chris Hanson <[email protected]>

* runtime/os2prm.scm[1.18]:
Change FILE-TIME->STRING to use a full year rather than just the last
two digits. RFC 822 specifies just two digits, but this has been
superseded by a later RFC.

1995-07-06 Chris Hanson <[email protected]>

* sf/subst.scm[4.14]:
Another try.

* sf/subst.scm[4.13]:
Don't optimize away (LET () ...) if the body of the let contains
declarations.

* runtime/Attic/syntax.scm[14.27]:
Fix typo that prevented the body of an IN-PACKAGE special form from
being treated like a BEGIN WRT declarations.

1995-07-02 Chris Hanson <[email protected]>

* edwin/screen.scm[1.106]:
Fix bug that would cause SIGSEGV when a screen changed while it was
not visible. The optimization being performed for invisible screens
was leaving the window redisplay data structures in an inconsistent
state. The fix uses a less-agressive optimization that does all the
redisplay up to the screen matrix, but avoids transferring the changes
to the X window.

1995-06-30 Chris Hanson <[email protected]>

* microcode/uxterm.c[1.24]:
Fix broken conditional in `OS_pty_master_send_signal', then
reconditionalize to broaden the applicability of the code.

* microcode/unxutl/Attic/ymkfile[1.90]:
Don't use hard-par under linux since it isn't needed and it signals an
error due to some GCC randomness.

1995-06-30 Nick Papadakis <[email protected]>

* microcode/sysprim.c[9.41]:
Insert missing backslashes needed by previous change.

1995-06-29 Chris Hanson <[email protected]>

* microcode/s/Attic/linux.h[1.2]:
Linux no longer needs special command-line args: oscond.h will detect
`__linux' and set the appropriate definitions.

* microcode/Attic/oscond.h[1.19]:
Add conditionalizations to set up for Linux correctly.

* microcode/ux.h[1.62]:
Linux has `ftruncate'.

* microcode/unxutl/Attic/config[1.29]:
Change definition for linux, now named "i386-linux".

1995-06-28 Stephen Adams <[email protected]>

* edwin/win32.scm[1.4]:
In READ-EVENT-1, include INTERRUPT-BIT/GLOBAL-1 so that messages
(including keypresses) are dispatched to the screen window by the
interrupt-handler, otherwise we could wait forever.

* runtime/os2graph.scm[1.10], win32/graphics.scm[1.8]:
Added new initial colour names "orange" and "pink".

1995-06-28 Chris Hanson <[email protected]>

* microcode/s/Attic/ultrix.m4[1.7]:
Convert to Bourne shell format -- linux doesn't have csh.

* edwin/unix.scm[1.51]:
Implement POP support for unix systems that have popclient.

1995-06-27 Stephen Adams <[email protected]>

* runtime/numpar.scm[14.9]:
Added back the (declare (usual-integrations)) that seems to have
vanished between deltas 14.1 and 14.2

1995-06-23 Stephen Adams <[email protected]>

* sf/cgen.scm[4.3]:
Added a list of declarations which are not handled by SF but are known
to be handled by the compiler. This list is used only as a filter on
the "Unused declaration" warning.

1995-06-23 Chris Hanson <[email protected]>

* microcode/os2.c[1.6]:
Previous patch for random return code 3000 didn't work. Try a more
sophisticated patch. Too bad IBM doesn't have a clue about this one.

1995-06-21 robblau <[email protected]>

* runtime/savres.scm[14.28]:
TIME-WORLD-SAVED is now initially #F so that IDENTIFY-WORLD does not
crash if DISK-SAVE has never been called in this world.

1995-06-20 Stephen Adams <[email protected]>

* microcode/sysprim.c[9.40]:
Added primitive documentation to HEAP-AVAILABLE?, PRIMITIVE-GET-FREE
and PRIMITIVE-INCREMENT-FREE.

* cref/object.scm[1.9]:
Added print procedures to many of the data structures.

1995-06-20 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.260]:
Add missing export -- this should have been noticed many months ago.

1995-06-15 Chris Hanson <[email protected]>

* edwin/dired.scm[1.155]:
On some file systems, file names may have spaces embedded in them. So
use the end of line as the delimiter for the file name. This might
still lose, but not as often.

1995-06-14 Chris Hanson <[email protected]>

* microcode/Attic/config.h[9.88]:
Linux `frexp' losing -- comment it out.

* compiler/base/macros.scm[4.15]:
Fix typo in previous change.

1995-06-07 Chris Hanson <[email protected]>

* edwin/curren.scm[1.118]:
When user requests that the last screen be closed, this should act
like C-x C-c instead of C-x c.

* edwin/kilcom.scm[1.68]:
Tweak "interprogram-paste" code so that it doesn't signal an error
when the kill ring is empty.

1995-06-02 Chris Hanson <[email protected]>

* runtime/packag.scm[14.21]:
Add optional argument to PACKAGE/ADD-CHILD! to allow a new environment
to overwrite a previous one. This is useful for reloading a packaged
system and throwing away the old bindings.

1995-05-31 Chris Hanson <[email protected]>

* microcode/os2pm.c[1.19]:
Previous change didn't work. Try explicitly setting colors to black
and white.

* microcode/os2pm.c[1.18]:
Use CLR_ arguments to set initial colors for a window. Apparently the
value returned by GpiQueryBackColor is invalid on some displays.

1995-05-25 Michael R. Blair <[email protected]>

* runtime/unpars.scm[14.43], runtime/usrint.scm[1.14]:
Corrected printed representation of undefined values: they are _NOT_ useless
since they supply synchronization points and help programmers to avoid ill-
behaved implementation dependencies.

1995-05-23 Chris Hanson <[email protected]>

* edwin/sendmail.scm[1.32]:
Fix bug: "sender" field was being inserted in such a way that it was
not part of the message header.

1995-05-21 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.177]:
Missed some variable bindings for "snr".

* runtime/dospth.scm[1.25]:
Change canonicalization of pathname case so that environment variables
are case-sensitive.

1995-05-20 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.176], edwin/os2com.scm[1.2]:
Change color stuff to use global color-name database implemented in
the runtime system. Add M-x define-color.

* runtime/os2graph.scm[1.9], runtime/os2winp.scm[1.9],
runtime/runtime.pkg[14.259]:
Move OS/2 console stuff to "os2graph", and flesh it out a little.

* edwin/make.scm[3.86], microcode/version.h[11.150],
microcode/version.h[11.149], runtime/version.scm[14.167]:
New version in anticipation of OS/2 release.

* microcode/os2pmcon.c[1.15]:
Get resizing of console window to work properly.

* microcode/os2msg.h[1.11], microcode/os2pm.c[1.17],
microcode/os2pm.h[1.9], microcode/pros2pm.c[1.9]:
Implement OS2PS-GET-FONT-METRICS primitive.

* microcode/os2top.c[1.14]:
Follow standard practice and call WinCancelShutdown for all of the
non-PM threads in the program.

* microcode/os2pmcon.c[1.14]:
Eliminate compiler warning.

* runtime/os2winp.scm[1.8], runtime/runtime.pkg[14.258]:
Implement procedures to manipulate basic presentation parameters of
the console window.

* microcode/os2pmcon.c[1.13]:
Add hooks to update PM console's font metric data when the font is
changed.

1995-05-19 Chris Hanson <[email protected]>

* microcode/os2pm.c[1.16], microcode/os2pmcon.c[1.12],
microcode/os2pmcon.c[1.11], microcode/os2pmcon.c[1.10],
microcode/os2pmcon.c[1.9], microcode/os2pmcon.c[1.8]:
Add hooks to update PM console's font metric data when the font is
changed.

* edwin/occur.scm[1.2]:
M-x occur should leave point at beginning of buffer.

* edwin/os2.scm[1.18]:
Simplify error reporting for popclient. The output buffer will have a
better description of the return status.

1995-05-16 Stephen Adams <[email protected]>

* runtime/defstr.scm[14.28]:
Merged split-typecode and old versions.

1995-05-16 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.175], edwin/os2term.scm[1.8],
microcode/os2msg.h[1.10], microcode/os2pm.c[1.15],
microcode/os2pm.h[1.8], microcode/pros2pm.c[1.8],
runtime/os2winp.scm[1.7], runtime/runtime.pkg[14.257]:
Add primitives to create and manage menus.

1995-05-13 Stephen Adams <[email protected]>

* runtime/pp.scm[14.35]:
Fixed prefix nodes to compose with highlighted nodes.

1995-05-13 Chris Hanson <[email protected]>

* microcode/os2pm.c[1.14]:
Don't use WinQueryFocus to decide whether the cursor has been created.
There is a short period of time in which it answers "yes" when in fact
the answer is "no", which can result in errors from WinShowCursor.

1995-05-12 Chris Hanson <[email protected]>

* edwin/os2.scm[1.17]:
OS/2 directory-listing procedures must canonicalize filename case,
because filename completion code depends on case-sensitive string
matching operations.

1995-05-10 Stephen Adams <[email protected]>

* runtime/arith.scm[1.32]:
Changed some LAMBDAs in the arity-dispatched operators to
NAMED-LAMBDAs for PP clarity.

1995-05-10 Chris Hanson <[email protected]>

* microcode/os2pm.c[1.13]:
Fix random editing error.

* microcode/os2.c[1.5]:
Patch to work around sporadic error code in DosRequestMutexSem.

* microcode/os2pm.c[1.12]:
Patch to work around bugs in OS/2 PM API cursor procedures.

* edwin/sendmail.scm[1.31], edwin/sendmail.scm[1.30]:
Fix think-o in recent change.

1995-05-09 Chris Hanson <[email protected]>

* edwin/tparse.scm[1.70]:
Fix two small bugs in the paragraph-parsing code.

1995-05-07 Chris Hanson <[email protected]>

* microcode/os2conio.c[1.8]:
In the console readahead thread, when getch() returns EOF, send an
empty readahead message to inform Scheme that the console channel has
been closed.

* microcode/os2pmcon.c[1.7]:
Pay attention to the console_closedp flag, and take appropriate action
when it is set.

* microcode/os2pm.c[1.11]:
When WM_QUIT is posted to the PM message queue, kill the Scheme
program. This normally happens at one of two times: (1) the user
clicks on "close" in the pop-up menu in the window list, and (2) the
system is shutting down.

1995-05-06 Chris Hanson <[email protected]>

* microcode/os2pm.c[1.10]:
Implement support for fixed-width outline fonts.

* edwin/edwin.pkg[1.174], edwin/nntp.scm[1.2], edwin/snr.scm[1.2]:
Add code to do news-group posting.

1995-05-05 Chris Hanson <[email protected]>

* edwin/sendmail.scm[1.29]:
Change definition of MAIL-INSERT-FIELD to make it more general.

* edwin/sendmail.scm[1.28]:
If "To:" header field not given to MAIL-SETUP, don't insert one.

* edwin/edwin.pkg[1.173], edwin/sendmail.scm[1.27]:
Reorganize mail sending code into more general pieces, then export the
pieces for use by other programs.

* edwin/dos.scm[1.25], edwin/os2.scm[1.16], edwin/unix.scm[1.50]:
Add OS/HOSTNAME procedure to get a host name suitable for use in an
email address. (Implemented for unix and OS/2.)

* edwin/sendmail.scm[1.26], edwin/sendmail.scm[1.25]:
Change MAKE-MAIL-BUFFER to return the buffer it makes. If an old
buffer exists and the user wants to keep it, return #F instead. Also
make the SELECTOR argument optional, and allow it to be #F meaning
that the buffer will not be selected but just returned (the default).
Change the MAIL-SETUP-HOOK variable so that it is invoked with the
mail buffer as an argument.

* edwin/curren.scm[1.117]:
Fix bug: select-buffer-hook not being invoked-with correct arguments.

1995-05-04 Chris Hanson <[email protected]>

* edwin/os2.scm[1.15]:
Do CRLF translation when cutting to and pasting from the clipboard.

1995-05-03 Stephen Adams <[email protected]>

* runtime/global.scm[14.48]:
Changed SHOW-TIME to break process time into non-gc and gc times.

1995-05-03 Chris Hanson <[email protected]>

* edwin/decls.scm[1.55], edwin/ed-ffi.scm[1.38],
edwin/edwin.pkg[1.172], edwin/loadef.scm[1.28]:
Add auto-loaded news reader.

* runtime/optiondb.scm[1.3], runtime/runtime.pkg[14.256]:
Add new file implementing operations on ordered vectors.

1995-05-02 Chris Hanson <[email protected]>

* edwin/dos.scm[1.24], edwin/edwin.pkg[1.171], edwin/kilcom.scm[1.67],
edwin/kilcom.scm[1.66], edwin/kilcom.scm[1.65], edwin/os2.scm[1.14],
edwin/unix.scm[1.49]:
Integrate support for OS-dependent cut&paste buffer into the kill and
yank commands, as is done in Emacs 19. This support is available in
the OS/2 implementation.

* runtime/os2winp.scm[1.6]:
Add primitives to read and write the OS/2 clipboard.

* microcode/os2msg.h[1.9], microcode/os2pm.c[1.9],
microcode/os2pm.h[1.7], microcode/os2pmcon.c[1.6],
microcode/pros2pm.c[1.7]:
Add primitives to read and write the OS/2 clipboard. Also implement
Shift-Insert command on the console window to allow pasting from the
clipboard.

* edwin/fileio.scm[1.127]:
If a file insertion doesn't insert any data, don't do any of the
post-processing that sets the modification bit, etc.

* edwin/rmail.scm[1.41]:
Previously a POP password was discarded any time an error happened
while fetching mail from the POP server. Now, once mail has been
fetched successfully, the password is kept regardless of any errors.

* edwin/os2.scm[1.13]:
If popclient program is successful, kill buffer showing its output.

1995-04-30 Stephen Adams <[email protected]>

* runtime/hashtb.scm[1.21]:
Changed COMPUTE-KEY-HASH to compute hash value optimistically and only
go into the SET-INTERRUPT-ENABLES! guarded loop if, as a post-check,
the table needs rehashing.

On a test case (the new compiler on list.scm) this reduces the
profiled time in SET-INTERRUPT-ENABLES! from 9.9% to 3.4%

1995-04-30 Chris Hanson <[email protected]>

* edwin/fileio.scm[1.126]:
Repaginate.

* edwin/curren.scm[1.116], edwin/intmod.scm[1.86]:
Change select-buffer hooks to take a second argument, the window that
the buffer is being selected in. This is often useful, and if it's
not passed in there's no way to get it.

* edwin/comwin.scm[1.143]:
Add optional argument to WINDOW-DELETE! procedure. This argument is a
window that should get the space released by the deleted window. If
it is not adjacent to the deleted window, the argument is ignored.

* edwin/edwin.pkg[1.170], edwin/rmail.scm[1.40],
edwin/sendmail.scm[1.24], edwin/vc.scm[1.21]:
* Generalize and simplify sendmail interface, to give more control
over the configuration of a mail buffer by a program.

* Restructure parts of the RMAIL code that deal with replies and
output to mail files. Export some of this code for use by other
programs.

1995-04-29 Stephen Adams <[email protected]>

* runtime/option.scm[14.33]:
(LOAD-OPTION name #!optional no-error?) now returns #F when NO-ERROR?
is true and the option NAME is not available. It used to return NAME
in all cases.

* sf/usiexp.scm[4.34]:
Added expansion for SYMBOL? (similar to those for numeric predicates).

1995-04-28 Stephen Adams <[email protected]>

* sf/pthmap.scm[4.2]:
Yet another case where a BODY ended in a DEFINITION instead of an
EXPRESSION.

1995-04-28 Chris Hanson <[email protected]>

* microcode/os2env.c[1.7], microcode/os2xcpt.c[1.4]:
Eliminate compiler warning.

* microcode/boot.c[9.95], microcode/option.c[1.41],
microcode/os2.c[1.4], microcode/os2conio.c[1.7],
microcode/os2cthrd.c[1.6], microcode/os2cthrd.h[1.4],
microcode/os2env.c[1.6], microcode/os2io.h[1.2],
microcode/os2msg.c[1.9], microcode/os2pipe.c[1.6],
microcode/os2pm.c[1.8], microcode/os2proc.c[1.2],
microcode/os2thrd.c[1.3], microcode/os2thrd.h[1.3],
microcode/os2top.c[1.13], microcode/os2xcpt.c[1.3],
microcode/outf.c[1.7]:
* The procedure OS_set_working_dir_pathname in "os2env.c" had a
serious bug: passing it a string like "d:\\" caused it to signal a
Scheme error. What was serious was that this could occur while
spawning a subprocess, which for some as-yet unexplained reason
would crash Scheme with no error message. To compound matters, the
bug appeared to be unreproduceable under a debugger (not true). The
remaining changes were side effects of the blind debugging process:

* Added OS2_initialize_early to "boot.c" and "os2top.c". This allows
the microcode to do the initialization necessary to put up dialog
boxes. Which in turn is needed to report boot-time errors, such as
non-existent band file names.

* "option.c" calls outf but did not include "outf.h". Under ANSI C,
since outf takes a variable number of arguments, this results in
unspecified behavior. Under OS/2 with IBM's compiler, this causes a
mismatch in calling conventions, which can result in bizarre errors.

* Modified "os2.c" to have an alternate implementation of OS_malloc
and related procedures. This was generated while attempting to
track down a nasty bug that appeared to be a memory-allocation
error. The alternate implementation is #ifdef'ed out, but left in
place should it be useful in the future.

* Improved the definition of OS2_logic_error_1 so that it treats
errors in non-essential subthreads as non-fatal. Also improved the
wording of the error messages produced, and included more
information for future reference.

* All subthreads now have exception handlers and PM message queues, so
they can catch and report any exceptions that occur in them.
Previously, an exception occurring in a subthread would crash Scheme
with no explanation.

* Enhanced the acknowledgement messages sent to a channel readahead
thread to carry a flag indicating whether the thread is being asked
to read some more or to kill itself. This eliminates a race
condition associated with closing of the channel.

* Changed the input-pipe readahead thread to accept its arguments in a
freshly malloc'ed structure that the thread is responsible for
freeing. Previously, the arguments were accepted in a channel,
which contained a context structure which in turn contained the
arguments. The previous implementation had a race condition in that
the argument data structures were owned by the Scheme thread, and
could be deallocated before the readahead thread had a chance to
dereference them.

* In "os2proc.c", moved the allocation of the structure representing
the child process into the locked region of the process
initialization. This is necessary because the child-wait thread
accesses the same structures as the allocator.

* In "os2proc.c", the working directory was being saved and later
restored. But this was a static string, and there weren't good
guarantees as to it retaining its value -- so now it is copied
before being stored.

* When putting up a message box for a fatal error, the buffer used to
compose the message was static. This caused garbling when the two
threads attempted to produce fatal errors at the same time (this was
occurring regularly during the debugging process). Now the message
box uses a per-thread static buffer.

* microcode/pros2pm.c[1.6]:
Primitive OS2WIN-GET-EVENT was sometimes calling OS_free with a null
pointer. This is legal with IBM's C library, but is not something I
like to rely on.

* microcode/pros2io.c[1.4]:
In primitive OS2-SELECT-REGISTRY-TEST, there was a window where input
could be waiting to be read, but the primitive would be blocked
waiting for some input. This was because the primitive is composed of
two phases, and input detected in the first phase was not used to
prevent blocking in the second.

* microcode/os2io.c[1.4]:
Readahead message types belong to the channel-thread implementation
and are already initialized there. The initialization here was an
unnecessary duplicate.

1995-04-27 Chris Hanson <[email protected]>

* edwin/curren.scm[1.115]:
Implement some renames that have been nagging for some time:

current-buffer => selected-buffer
current-buffer? => selected-buffer?
current-window => selected-window
current-window? => selected-window?

With these renames, the accessors now have names that match the
selectors. The old names remain as aliases.

This was stimulated by a recent change that accidentally inserted a
reference to one of the new names -- when I misremember the names I
chose, it's time to change the names.

1995-04-26 Stephen Adams <[email protected]>

* edwin/fileio.scm[1.125], edwin/motion.scm[1.87]:
Fiddled with a sequence of definitions and expressions to ensure the
last form is an expression to comply with the new analchecking software.

1995-04-24 Stephen Adams <[email protected]>

* runtime/gcnote.scm[14.11], runtime/runtime.pkg[14.255]:
Added SET-GC-NOTIFICATION!

* runtime/wttree.scm[1.9]:
Tweaked error checking code to make the integrated portion smaller.

* compiler/base/macros.scm[4.14]:
Fixed TRANSFORM/PACKAGE to always return UNSPECIFIC, which ensures
that the last thing in the generated LET is not a definition.

1995-04-24 Chris Hanson <[email protected]>

* edwin/prompt.scm[1.165]:
When doing completing prompt with REQUIRE-MATCH? set true, delay
running completion procedure on final value. First try VERIFY-MATCH?
procedure, and if it succeeds, don't do any completion. This
shouldn't change the behavior since VERIFY-MATCH? must be run anyway,
and if the result is already a match, completion does nothing.

This is helpful when the completion procedure is expensive but
VERIFY-MATCH? is relatively cheap.

1995-04-23 Chris Hanson <[email protected]>

* edwin/rmail.scm[1.39]:
Fix think-o in POP server support.

* runtime/datime.scm[14.12]:
Fix typos in previous change.

* runtime/os2prm.scm[1.17]:
Add day-of-week prefix to string returned by FILE-TIME->STRING. At
this point, the returned string is fully compliant with RFC 822.
Furthermore, the procedure is not operating-system specific, except
that it calls the procedure LOCAL-TIME-ZONE, which isn't currently
defined for any other operating system. Offhand, it's not obvious
what's involved in implementing LOCAL-TIME-ZONE for other systems,
except for the more modern unix systems, in which it's trivial.

* runtime/datime.scm[14.11], runtime/runtime.pkg[14.254]:
Implement procedures to return strings for weekdays.

* runtime/dosprm.scm[1.29], runtime/os2prm.scm[1.16],
runtime/unxprm.scm[1.38]:
Implement conversions between file time and universal time.

* runtime/dosprm.scm[1.28], runtime/os2prm.scm[1.15],
runtime/unxprm.scm[1.37]:
Implement ENCODE-FILE-TIME.

* microcode/os2utl/makefile[1.9]:
Fix typo.

* runtime/os2prm.scm[1.14]:
Use new primitives to get time zone and daylight savings time
information.

* runtime/datime.scm[14.10]:
Update to use new primitives that manipulate daylight savings time
information. Change make-decoded-time to fill in the day-of-week and
daylight-savings-time fields.

* microcode/Attic/dosenv.c[1.8], microcode/Attic/dosenv.c[1.7],
microcode/ntenv.c[1.12], microcode/ntenv.c[1.11],
microcode/os2env.c[1.5], microcode/os2env.c[1.4],
microcode/osenv.h[1.6], microcode/prosenv.c[1.12],
microcode/uxenv.c[1.14], microcode/uxenv.c[1.13]:
Extend the time decode/encode primitives to handle daylight savings
time information.

* microcode/os2env.c[1.3], microcode/pros2fs.c[1.6],
microcode/pros2fs.c[1.5]:
Implement primitives to get the timezone and daylight-savings
information from the C library.

1995-04-22 Chris Hanson <[email protected]>

* runtime/datime.scm[14.9], runtime/datime.scm[14.8],
runtime/os2prm.scm[1.13], runtime/runtime.pkg[14.253]:
Implement some rudimentary time-zone code so that we can produce
reasonably accurate time zones in RFC-822 dates.

* microcode/os2msg.c[1.8]:
Fix old typo in OS2_close_std_tqueue that was never noticed because
this procedure was never called.

* edwin/os2term.scm[1.7]:
Fix bug: the C-x z command was closing the editor windows and leaving
the editor in an unusable state. This happened because the actions of
initializing and finalizing the PM interface were happening in the
wrong place.

* microcode/os2msg.c[1.7], microcode/os2msg.h[1.8]:
Lock access to the twin of a qid more carefully. Previously, the code
for sending messages was not locked at all, which meant that there
were race conditions that could produce fatal errors. By locking, we
limit the amount of concurrent communication slightly, but since the
locks are active for only a short time this shouldn't be noticed.

Also implement a new procedure OS2_qid_tqueue, which is used by
inferior threads to obtain and close their associated tqueue objects
when they finish.

* microcode/os2pipe.c[1.5]:
Don't send broken-pipe errors to the Scheme thread when they are
detected by the pipe readahead thread. Recently, this has seemed to
cause a fatal error under certain timing conditions (which
unfortunately didn't hold while running under the debugger). Although
this fatal error is now probably fixed, rather than run the risk of
finding out, it seems safer to avoid the behavior that seemed to cause
the problem. Since the value of reporting broken-pipe errors is
minimal at best, this is not a big deal.

* microcode/os2conio.c[1.6], microcode/os2pipe.c[1.4]:
Close the qid and tqueue associated with a readahead thread when the
thread finishes. This will fix the known bug of exhausting the set of
available qids, and it will also fix a previously unnoticed memory
leak.

* edwin/curren.scm[1.114]:
Add missing space to error message.

1995-04-21 Stephen Adams <[email protected]>

* microcode/bitstr.c[9.56]:
Moved some comments to primitive documentation strings.

1995-04-21 Chris Hanson <[email protected]>

* runtime/genio.scm[1.5]:
Change CLOSE-PORT to close the output side of an I/O port before it
closes the input side. This matters when the same file channel is
shared by both sides, and there is buffered data that must be flushed
before the close.

* microcode/os2cthrd.c[1.5]:
Always send a readahead ACK when closing a channel with an associated
reader thread. This prevents the thread from getting hung in a state
where the channel is closed but the thread is waiting for the ACK.

1995-04-20 Chris Hanson <[email protected]>

* edwin/simple.scm[1.47]:
Fix think-o in previous change.

1995-04-19 Chris Hanson <[email protected]>

* edwin/macros.scm[1.62]:
Extend the SET-VARIABLE! and LOCAL-SET-VARIABLE! special forms to take
an additional optional argument that specifies the buffer in which the
variable is to be set.

* edwin/buffer.scm[1.168]:
Provide mechanism to permit BUFFER-GET to return a value different
from #F when the buffer lacks a given property.

* edwin/simple.scm[1.46]:
Add basic text property procedures that accept marks instead of
indexes.

1995-04-17 Chris Hanson <[email protected]>

* edwin/simple.scm[1.45]:
Use new procedure GROUP-INSERT-CHARS! to reduce consing in several
procedures. Add new procedures to do padded string insertions without
consing.

* edwin/edwin.pkg[1.169], edwin/grpops.scm[1.22]:
Add new procedure GROUP-INSERT-CHARS!.

1995-04-15 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.168], edwin/edwin.pkg[1.167]:
Eliminate unneeded reference to GET-TIME.

* runtime/datime.scm[14.7], runtime/datime.scm[14.6],
runtime/os2prm.scm[1.12], runtime/os2prm.scm[1.11]:
Fix think-o in previous change.

* edwin/vc.scm[1.20]:
Use new procedure OS/LS-FILE-TIME-STRING.

* edwin/os2.scm[1.12], edwin/unix.scm[1.48]:
Implement new procedure OS/LS-FILE-TIME-STRING.

* runtime/unxprm.scm[1.36]:
Implement new procedure DECODE-FILE-TIME.

* runtime/os2prm.scm[1.10]:
Implement new procedure DECODE-FILE-TIME, and rewrite
FILE-TIME->STRING so that it's result is (almost) in RFC-822 format.

* 6001/floppy.scm[1.17]:
Change random ACCESS statement to use now-exported name.

* runtime/datime.scm[14.5], runtime/runtime.pkg[14.252]:
Implement new procedure MAKE-DECODED-TIME. Rename several internal
procedures to use Common Lisp names, and export them to the global
environment.

1995-04-14 Chris Hanson <[email protected]>

* runtime/genio.scm[1.4], runtime/io.scm[14.43],
runtime/process.scm[1.16]:
Add means to control line translation in subprocess port. This is
useful when communicating with a TCP stream relay subprocess, in which
case the line terminators are defined by the network protocol rather
than by the operating system.

* runtime/Attic/illdef.scm[1.3], runtime/Attic/illdef.scm[1.2]:
Code that walked LAMBDA body was being too strict -- body should allow
definitions and expressions to be interspersed.

1995-04-13 Chris Hanson <[email protected]>

* edwin/edwin.ldr[1.55], edwin/edwin.pkg[1.166],
edwin/key-x11.scm[1.3], edwin/key-x11.scm[1.2]:
Reorganize X11 keys and eliminate unnecessary overriding of
HOOK/MAKE-SPECIAL-KEY.

* edwin/key-w32.scm[1.2]:
Reorganize slightly.

* edwin/modefs.scm[1.149]:
Add bindings for PC's special keys. Under OS/2, these keys have their
natural names rather than being mapped onto the names of the
corresponding keys on the HP keyboard.

* edwin/calias.scm[1.16]:
Reorganize special-key code.

* 6001/nodefs.scm[1.10]:
Move CHECK-FOR-ILLEGAL-DEFINITIONS into the runtime system proper.

* runtime/Attic/syntax.scm[14.26], runtime/ed-ffi.scm[1.12],
runtime/make.scm[14.57], runtime/runtime.pkg[14.251]:
Add code to check for illegal internal definitions and disallow them.

1995-04-12 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.250], runtime/unpars.scm[14.42]:
Add switch to control special handling of abbreviations for QUOTE and
friends. Default this switch to OFF.

1995-04-11 Chris Hanson <[email protected]>

* microcode/os2msg.c[1.6]:
Fix bug in OS2_receive_message. It's possible to arrive here with a
closed qid due to race conditions when the sending thread closes the
qid while the reading thread is about to read from it. This was
happening under some circumstances when sending mail: the sendmail
program doesn't generate any output, and if it terminates before the
input thread's first read, the qid will be closed.

* microcode/os2thrd.c[1.2], microcode/os2thrd.h[1.2]:
Add new procedure OS2_current_tid.

1995-04-10 Chris Hanson <[email protected]>

* edwin/os2.scm[1.11]:
Fix OS/AUTO-SAVE-PATHNAME to rewrite the buffer name so that it uses
only legal HPFS characters, when the pathname includes the buffer
name.

* edwin/edwin.pkg[1.165], edwin/rmail.scm[1.38]:
Add support for fetching mail from POP servers using an OS-dependent
mechanism. This is necessary because socket support is only
implemented for unix, and other mechanisms are available for other
systems.

* edwin/os2.scm[1.10]:
Add code to support fetching mail from a POP server using the freeware
"popclient" program. Fix bug in precious-file backups.

* edwin/sendmail.scm[1.23]:
Call OS/FIND-PROGRAM explicitly in one place where it is needed.

* edwin/os2term.scm[1.6]:
Change C-g interrupt-signalling code to recognize the combination of
the lower-case g and the control keys. Previously, it only recognized
the upper-case g. This was not immediately noticed because the input
stream lookahead code recognized both combinations.

* edwin/process.scm[1.37]:
RUN-SYNCHRONOUS-PROCESS now calls OS/FIND-PROGRAM on its program
argument -- this allows invocation of a program without knowing its
precise location in the file system.

* edwin/prompt.scm[1.164]:
Fix typos in previous change.

1995-04-09 Chris Hanson <[email protected]>

* edwin/dos.scm[1.23], edwin/os2.scm[1.9], edwin/rmail.scm[1.37],
edwin/unix.scm[1.47]:
Add hooks to allow OS-dependent POP mail support.

* edwin/prompt.scm[1.163]:
Tweak prompt-for-password slightly.

* edwin/rmail.scm[1.36]:
Patch two bugs.

* edwin/dos.scm[1.22], edwin/os2.scm[1.8], edwin/rmail.scm[1.35],
edwin/sendmail.scm[1.22], edwin/unix.scm[1.46], edwin/vc.scm[1.19],
runtime/dosprm.scm[1.27], runtime/os2prm.scm[1.9],
runtime/sfile.scm[14.17], runtime/unxprm.scm[1.35]:
Make OS-independent binding for file-time->string.

* microcode/os2api.h[1.6]:
Add shared-memory API calls -- these will be needed for several
different purposes.

* edwin/dos.scm[1.21], edwin/notify.scm[1.16], edwin/rmail.scm[1.34],
edwin/sendmail.scm[1.21], edwin/vc.scm[1.18],
runtime/dosprm.scm[1.26], runtime/dospth.scm[1.24],
runtime/os2prm.scm[1.8], runtime/unxprm.scm[1.34],
runtime/unxpth.scm[14.18]:
Make OS-independent bindings for the following procedures. These
procedure were previously defined for all OSs, but with different
names in each OS:

user-home-directory
current-user-name
current-home-directory

The old names have been aliased to the new, except for OS/2.

1995-03-30 Chris Hanson <[email protected]>

* edwin/linden.scm[1.123]:
Fix handling of comments when indenting an expression. Previously,
comments appearing at the end of a line containing code were not
treated specially. Now, such comments are re-indented to the comment
column after the line has been re-indented.

1995-03-21 Chris Hanson <[email protected]>

* microcode/bchdmp.c[9.79], microcode/bchdrn.h[1.7],
microcode/bchgcc.h[9.58], microcode/bchmmg.c[9.87],
microcode/bchutl.c[1.5], microcode/os2utl/makefile[1.8]:
Changes to get bchscheme running under OS/2.

* microcode/pros2fs.c[1.4]:
Add new primitive to scan Scheme's memory usage.

1995-03-20 Stephen Adams <[email protected]>

* runtime/global.scm[14.47]:
Changed PA to print primitive documentation rather than signal an
error when given a primitive procedure.

1995-03-20 Chris Hanson <[email protected]>

* sf/usiexp.scm[4.33]:
Add expansion for INTERN -- just like that for STRING->SYMBOL.

1995-03-13 Chris Hanson <[email protected]>

* microcode/os2utl/makefile[1.7]:
Delete old definition of "all" target.

* microcode/os2utl/makefile[1.6]:
Add default target "all". Change references to assembler and to the
libraries that it requires -- these files are now assumed to reside in
the "os2utl" subdirectory.

1995-03-08 Chris Hanson <[email protected]>

* microcode/os2utl/makefile[1.5]:
"os2top.obj" now depends on "scheme.h".

* microcode/os2top.c[1.12], microcode/os2xcpt.c[1.2]:
Implement OS/2 stack-overflow detection mechanism. This is a pile of
hair involving some tricky memory management and a little cooperation
from the OS/2 exception handler. See the code for details.

* microcode/Attic/config.h[9.87], microcode/stack.h[9.37]:
Add stack hooks for OS/2 stack-overflow detection. Move existing
overrides of STACK_RESET macro from "stack.h" to "config.h". Change
`Stack_Check' macro to use STACK_OVERFLOWED_P macro rather than
comparing the stack pointer to `Stack_Bottom', because OS/2 overrides
this macro with an unusual definition.

1995-03-07 Chris Hanson <[email protected]>

* runtime/stream.scm[14.9]:
Fix think-o in previous change.

1995-03-06 Chris Hanson <[email protected]>

* 6001/6001.pkg[1.10], 6001/arith.scm[1.5]:
Add INC and DEC procedures.

* runtime/stream.scm[14.8]:
Add operations required by new edition of SICP.

* microcode/bitstr.c[9.55]:
Fix stupid bug in `copy_bits': code to generate mask was doing

((1 << 32) - 1)

and expecting something reasonable to happen on a 32-bit machine.

1995-03-04 Chris Hanson <[email protected]>

* runtime/pp.scm[14.34]:
Reorganize code a little. Add general hook for generating the
"description" of an object.

* runtime/unpars.scm[14.41]:
Add more general hook for unparsing records.

1995-03-03 Chris Hanson <[email protected]>

* runtime/list.scm[14.20], runtime/runtime.pkg[14.249]:
Implement MAKE-INITIALIZED-LIST.

1995-03-02 Stephen Adams <[email protected]>

* runtime/wttree.scm[1.8]:
Fiddled with argument ordering.

1995-03-01 Stephen Adams <[email protected]>

* runtime/runtime.pkg[14.248]:
Exported WT-TREE/UNION-MERGE

* runtime/wttree.scm[1.7]:
Added operation

(WT-TREE/UNION-MERGE merge tree1 tree2)

merge = (lambda (key value1 value2) ...)

1995-02-26 Chris Hanson <[email protected]>

* microcode/cmpauxmd/i386.m4[1.36]:
Guarantee that the floating-point register stack is empty when moving
from C to Scheme and vice-versa. This appears to fix a floating-point
stack overflow exception that has been observed under unix and OS/2.

1995-02-24 Chris Hanson <[email protected]>

* 6001/edextra.scm[1.20], 6001/floppy.scm[1.16], 6001/make.scm[15.23],
6001/make.scm[15.22], 6001/pic-imag.scm[1.7], 6001/picture.scm[1.23]:
Lots of changes to generalize this code for OS/2 and Windows.

* edwin/edwin.pkg[1.164], edwin/os2term.scm[1.5]:
Add some extra screen-manipulation procedures, one of which is needed
by the 6.001 support to allow a Scheme program to activate an editor
screen.

* runtime/os2graph.scm[1.8], runtime/runtime.pkg[14.247]:
Final round of changes to get 6.001 images working right.

* runtime/os2ctype.scm[1.2]:
Put normalization case into CANONICALIZE-C-TYPE.

* edwin/filcom.scm[1.184]:
Don't beep when ignoring evaluation environment -- it's too annoying.

1995-02-21 Chris Hanson <[email protected]>

* win32/win32.pkg[1.6]:
No longer need to import most image procedures since they are in the
global environment.

* win32/graphics.scm[1.7]:
Change to reflect changes to graphics type and image support in the
runtime system.

* 6001/pic-imag.scm[1.6]:
Change to use IMAGE/CREATE instead of 'CREATE-IMAGE graphics
operation.

* 6001/picture.scm[1.22]:
Major cleanup of this file. Generalization of graphics code to
support OS/2.

* runtime/graphics.scm[1.15], runtime/os2graph.scm[1.7],
runtime/x11graph.scm[1.42]:
Change IMAGE/CREATE to extract the image type from its device
argument.

* runtime/os2graph.scm[1.6]:
Yet another cut at getting backing store and image stuff to work
correctly. Nearly done now.

* runtime/runtime.pkg[14.246]:
Various changes relating to graphics development.

* runtime/os2winp.scm[1.5]:
Add two new primitives, and export an operation to clobber the window
field of an event -- thus allowing "user" events from graphics windows
to contain the "user" graphics device rather than an internal
descriptor.

* runtime/os2prm.scm[1.7]:
Put bullet-proofing code into OS2/FILE-TIME->STRING. It turns out
that CD-ROM root directories have unusual time stamps.

* runtime/graphics.scm[1.14], runtime/starbase.scm[1.12],
runtime/x11graph.scm[1.41]:
Several sweeping changes to graphics and image types. Graphics types
now have their names associated with them so that code can dispatch on
the name. Each image type is now associated with a particular
graphics type, so that it is possible to get the image type given a
graphics type. New procedures GRAPHICS-TYPE and IMAGE-TYPE provide
very general ways to get pointers to such types. New procedure
GRAPHICS-TYPE-NAME gets the name of a graphics type.

These changes necessitated some changes in the interface to the
graphics type definitions. In particular, there's no longer a
procedure to register a graphics type's name, and also the procedure
to construct a graphics type now accepts an additional argument, which
is the name.

* runtime/ed-ffi.scm[1.11]:
New file "os2ctype.scm".

* microcode/os2pmcon.c[1.5]:
Limit initial width of console window to 80 characters.

* microcode/os2msg.h[1.7], microcode/os2pm.c[1.7],
microcode/os2pm.h[1.6], microcode/pros2pm.c[1.5]:
Add new primitive OS2PS-GET-BITMAP and OS2PM-SYNCHRONIZE. Fix some
minor bugs in OS2PS-GET-BITMAP-PARAMETERS.

1995-02-16 Chris Hanson <[email protected]>

* edwin/bufwin.scm[1.304]:
Fix bug in redisplay: when variables that affect display (e.g.
truncate-lines) are changed, the window start marks must be erased.
Otherwise, the old start marks are used, and with the new display
variables in effect, these marks could cause point to be left
offscreen, or even force all of the buffer's text to be offscreen!

* edwin/image.scm[1.133]:
Reformat to meet page length and width standards.

1995-02-14 Chris Hanson <[email protected]>

* runtime/uproc.scm[1.8]:
Add definition %ENTITY-EXTRA/APPLY-HOOK? so that Ziggy can identify
internal data structure used to build apply-hooks out of entities.

* microcode/os2pmcon.c[1.4]:
Change to use presentation space calls where appropriate now that
low-level PM support has changed to separate PS calls from window
calls.

* runtime/runtime.pkg[14.245]:
Update to match "os2graph.scm" and "os2winp.scm".

* runtime/os2graph.scm[1.5]:
Complete redesign uses bitmaps as backing store and transfers the
appropriate part of the backing store to the screen using GpiBitBlt
whenever the PM says it needs to be updated.

* runtime/os2winp.scm[1.4]:
Add new primitives. Reorganize to make this easier to maintain.

* runtime/os2prm.scm[1.6]:
Change definition of OS2/FS-LONG-FILENAMES? so that it is true of any
filesystem type except FAT. This is still not accurate, but is a
better default, since there are compression filesystems that have
unusual types but also have long filenames.

* runtime/dospth.scm[1.23]:
Redefine PATHNAME-WILD? under DOS/NT/OS2 so that it is true of any
pathname containing a * or ? in its file-namestring.

* edwin/decls.scm[1.54], edwin/dired.scm[1.154],
edwin/dirunx.scm[1.10], edwin/ed-ffi.scm[1.37],
edwin/edwin.ldr[1.54], edwin/edwin.pkg[1.163]:
Add new file "diros2.scm" that supports compressed files under OS/2.

* edwin/os2.scm[1.7]:
Add support for compressed files.

* microcode/os2msg.h[1.6], microcode/os2pm.c[1.6],
microcode/os2pm.h[1.5], microcode/pros2pm.c[1.4]:
Rewrite bitmap support to make it be closer to the API calls. This
gives more power to the Scheme programmer at the expense of more
datatypes and primitives.

* microcode/os2file.c[1.2]:
By default, don't allow opened file handles to be inherited by
inferior processes.

1995-02-09 Stephen Adams <[email protected]>

* runtime/uenvir.scm[14.35]:
Fixed COMPILED-PROCEDURE/ENVIRONMENT not to SIGSEGV on compiled
procedures which have no free variables. This happened because the
compiler failed to produce a dbg-block for the dbg-block/parent of the
procedure's dbg-block. An alternative fix would be to modify the
compiler to insert the correct IC dbg-block instead of leaving it as
#F.

1995-02-08 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.162], edwin/os2term.scm[1.4],
microcode/os2msg.h[1.5], microcode/os2pm.c[1.5],
microcode/os2pm.h[1.4], microcode/pros2pm.c[1.3],
runtime/os2graph.scm[1.4], runtime/os2winp.scm[1.3],
runtime/runtime.pkg[14.244]:
Reimplement OS/2 PM window support to separate the drawing operations
from the windows. All drawing operations now operate on objects that
represent "presentation spaces"; a window has a PS associated with it,
but it is now possible to create other PS objects that represent
bitmaps. Furthermore there are is a bitblt operation that can be used
to move image data between bitmaps and windows. All of this support
allows Scheme to store its graphics output in bitmaps and to refresh
the windows when needed, thus allowing efficient backing store for
windows.

1995-02-07 Chris Hanson <[email protected]>

* runtime/sfile.scm[14.16]:
Add code to preserve modification time stamp on copied files.

* microcode/os2msg.c[1.5], microcode/os2top.c[1.11]:
Add more specific error messages to low-level message allocation code.

* microcode/os2fs.c[1.5]:
Never signal an error from file probe. There are too many things that
can go wrong, so it's pointless to try to enumerate them.

* edwin/curren.scm[1.113]:
Add hook for user action when new screen is created.

* edwin/cinden.scm[1.12]:
Fix minor bug in M-x indent-c-exp. Still needs a little work, but at
least this one isn't as broken as the previous.

1995-02-02 Chris Hanson <[email protected]>

* edwin/cinden.scm[1.11]:
Completely reimplement indentation rules for C statements appearing at
the top level of a file (that is, not inside any parenthetical
characters). Old rules incorrectly indented the name line of a
function definition that was written in the standard GNU style. New
rules correctly indent this case, and all of the other cases that I've
tried so far.

* edwin/c-mode.scm[1.53]:
Fix bug in M-x electric-c-terminator: it was not correctly handling
goto tags that contained _ or $.

* edwin/regexp.scm[1.66]:
Change buffer search procedures to have their ending limit be
optional. This makes them more convenient to use and also makes them
just like the buffer match procedures.

1995-01-31 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.243]:
Eliminate end-of-file markers.

* runtime/os2prm.scm[1.5]:
Temporary filenames now use long format which includes the Scheme PID
if the filesystem that they are stored on supports long filenames.

* microcode/pros2fs.c[1.3]:
Add primitive to get Scheme's pid.

* edwin/os2.scm[1.6]:
Move OS2/FS-LONG-FILENAMES? to runtime system.

* runtime/os2graph.scm[1.3]:
Add SET-FONT operation to OS/2 graphics windows.

* runtime/os2graph.scm[1.2]:
Implement window-manipulation procedures for OS/2 graphics windows.

* edwin/dired.scm[1.153], edwin/dirunx.scm[1.9]:
Remove key bindings for unix-specific Dired commands.

* edwin/compile.scm[1.4]:
Generalize for OS/2.

* microcode/os2api.h[1.5]:
Fix mismatch between two syscall name lists.

* edwin/fileio.scm[1.124], runtime/dosprm.scm[1.25],
runtime/dospth.scm[1.22], runtime/fileio.scm[1.9],
runtime/io.scm[14.42], runtime/os2prm.scm[1.4],
runtime/pathnm.scm[14.30], runtime/unxprm.scm[1.33],
runtime/unxpth.scm[14.17]:
Eliminate end-of-file marker handling code. This is the code that
used to handle ^Z in DOS files -- but the ^Z convention is very old
and not worth putting in explicit support for.

1995-01-30 Chris Hanson <[email protected]>

* edwin/process.scm[1.36]:
Fix bug reported by BAL: CALL-WITH-INPUT-COPIER was examining the
value returned by OUTPUT-PORT/WRITE-SUBSTRING -- but that procedure
has no useful value.

1995-01-25 Chris Hanson <[email protected]>

* microcode/bitstr.c[9.54]:
Fix some more fencepost errors in the bit string copying code.

1995-01-24 Chris Hanson <[email protected]>

* microcode/bitstr.c[9.53]:
Fix some fencepost errors in `copy_bits', and reformat the code to my
standards.

1995-01-23 Chris Hanson <[email protected]>

* edwin/dos.scm[1.20], edwin/filcom.scm[1.183], edwin/os2.scm[1.5],
edwin/process.scm[1.35], edwin/sendmail.scm[1.20],
edwin/unix.scm[1.45]:
Eliminate several operating-system dependencies.

1995-01-19 Chris Hanson <[email protected]>

* edwin/os2.scm[1.4]:
Fix bug in presentation of pathnames to user -- if the pathname being
presented is on a different device from the default, ENOUGH-PATHNAME
cannot be used. This is because ENOUGH-PATHNAME and MERGE-PATHNAMES
treat the device as separate from the directory, whereas Edwin wants
the device to be considered as part of the directory.

1995-01-16 Chris Hanson <[email protected]>

* microcode/pros2io.c[1.3]:
Change SELECT-DESCRIPTOR to return process-status flag when
appropriate.

* microcode/os2pm.c[1.4]:
Change many of the fatal window-system errors to non-fatal warnings.
Expand the error/warning text to make it clearer and more useful.

* microcode/os2fs.c[1.4]:
Error pop-ups are now disabled all the time. Additionally, catch more
error codes when probing for file existence. Most of the new error
codes have to do with floppy drives.

* microcode/os2top.c[1.10]:
Disable random error/exception pop-ups generated by OS/2 kernel.

* edwin/filcom.scm[1.182]:
Fix bug in pathname merging -- if the user specifies a device, don't
merge in the default pathname's directory but instead start at that
device's root directory.

* edwin/os2.scm[1.3]:
Fix bug in previous change: OS/NUMERIC-BACKUP-FILENAME? must return a
pair consisting of the filename root and the backup version.

* edwin/edwin.pkg[1.161]:
Use new CREF directives to improve packaging.

* edwin/cinden.scm[1.10]:
Fix bug in C indentation: side-effect occurring at wrong time caused
temporary markers to lose their position.

1995-01-14 Stephen Adams <[email protected]>

* runtime/runtime.pkg[14.242]:
Exported *pp-arity-dispatched-procedure-style*.

* runtime/pp.scm[14.33]:
Taught the top level PP procedure about a range of new object types:

. RECORDs with no recognised record type, WEAK PAIRs, and CELLs
print out a bit like named structures.

. arity-dispatched-procedures (a kind of ENTITY) print out as a CASE
expression. The style is controlled by
*pp-arity-dispatched-procedure-style*

1995-01-13 Stephen Adams <[email protected]>

* runtime/arith.scm[1.31]:
Changed all the default procedures for the entities for +, min, < etc
to be named procedures.

* runtime/unpars.scm[14.40]:
Fixed typo in previous edit.

* runtime/unpars.scm[14.39]:
If an arity-dispatched-procedure has a named compiled procedure as the
default then this procedure's name is used in printing the #[..] object.

* runtime/pp.scm[14.32]:
Added pretty printer method for CASE which works like this:

(case will-fit-on-line
clause
clause)
or

(case
wont-fit-on-line
clause
clause)

1995-01-12 Stephen Adams <[email protected]>

* runtime/unpars.scm[14.38]:
Entities used to inplement arity-dispatched-procedures print out
slighty differently.

* runtime/uproc.scm[1.7]:
Added the predicate ARITY-DISPATCHED-PROCEDURE?, which is true for
certain kinds of ENTITY.

1995-01-10 Chris Hanson <[email protected]>

* cref/make.scm[1.14], cref/object.scm[1.8], cref/redpkg.scm[1.8]:
Add new directives INCLUDE and EXTEND-PACKAGE.

1995-01-06 Chris Hanson <[email protected]>

* microcode/os2ctty.c[1.3], microcode/os2ctty.c[1.2]:
Don't enable interrupts which currently have no handlers.

* microcode/os2top.c[1.9], microcode/os2top.c[1.8],
microcode/os2top.c[1.7]:
Eliminate extra period in OS/2 error messages.

* microcode/os2fs.c[1.3]:
Signal error when attempting to read non-existant directory.

* rcs/rcs.pkg[1.5]:
Update to reflect change to runtime system.

* rcs/Attic/rcs.sf[1.7]:
Use LOAD-OPTION to load CREF.

* edwin/os2term.scm[1.3]:
Change \\ to / in file specification so that unix systems won't get
confused.

* edwin/edwin.pkg[1.160]:
Fix typos from last change.

* runtime/os2winp.scm[1.2], runtime/runtime.pkg[14.241]:
Add definition for OS2WIN-SET-MIX.

* cref/conpkg.scm[1.5]:
Use explicit reference to SYSTEM-GLOBAL-ENVIRONMENT rather than #F in
top-level IN-PACKAGE.

* sf/reduct.scm[4.9], sf/table.scm[4.4]:
Merge in #F/() bug fix from split code.

* 6001/6001.sf[1.9], compiler/machines/C/compiler.sf[1.5],
compiler/machines/alpha/compiler.sf[1.5],
compiler/machines/bobcat/compiler.sf[1.17],
compiler/machines/i386/compiler.sf[1.7],
compiler/machines/mips/compiler.sf-big[1.7],
compiler/machines/mips/compiler.sf-little[1.7],
compiler/machines/spectrum/compiler.sf[1.17],
compiler/machines/vax/compiler.sf[1.8], cref/cref.sf[1.8],
cref/cref.sf[1.7], edwin/edwin.sf[1.12], rcs/Attic/rcs.sf[1.6],
runtime/make.scm[14.56], runtime/packag.scm[14.20],
runtime/runtime.sf[14.11], win32/win32.sf[1.3]:
Change 4-character suffixes used by package system to be 3-character
suffixes. This is done by defaulting the output file on the call to
SF, which now generates the correct 3-character suffix.

* sf/make.scm[4.31], sf/sf.sf[4.6], sf/toplev.scm[4.13]:
Change default output file name to be limited to a three character
suffix.

* edwin/editor.scm[1.240], edwin/editor.scm[1.239]:
Fix problem with init-file loading: if the init file deletes the
initial buffer or sets an inhibition flag, don't start the inferior
REPL.

* microcode/Attic/config.h[9.86], microcode/boot.c[9.94],
microcode/os2api.h[1.4], microcode/os2top.c[1.6],
microcode/syscall.h[1.8]:
Simplify interface to OS/2 API by moving all definitions to one file:
"os2api.h". By means of some trickery, this eliminates the OS/2
dependencies in "syscall.h". Additionally, add definitions to allow
preallocation of the heap's memory (which is temporarily disabled due
to problems it causes during debugging).

* microcode/cmpauxmd/i386.m4[1.35]:
Under OS/2, guarantee that correct number of type bits is used.

* edwin/shell.scm[1.12]:
Add OS conditionalizations so that OS/2 can be supported.

* edwin/process.scm[1.34]:
Add OS conditionalizations so that OS/2 can be supported. Change
subprocess I/O to use input and output buffers so that end-of-line
translation can be handled automatically by the runtime system.

* edwin/os2term.scm[1.2]:
Change to use runtime system's "os2winp" support. Change
corresponding to microcode which now supports multiple event queues
for windows. Add subprocess support. Reimplement management of state
so that windows are closed down properly when the editor is killed.
Change code that "controlifies" input characters -- previously it was
not doing this correctly. Change handling of paint events to clear
the region being painted before drawing in it -- previously the
microcode took care of this, but it no longer does so.

* edwin/os2.scm[1.2], edwin/unix.scm[1.44]:
Implement OS-specific part of subprocess support.

* edwin/lincom.scm[1.121]:
Extend M-x count-lines to show the number of characters in the region
as well as the number of lines.

* edwin/fileio.scm[1.123]:
Change text-mode translation to be done during buffer read or write by
means of the input/output-buffer abstractions in the runtime system.
This is MUCH faster than the mechanism previously implemented here.

* edwin/evlcom.scm[1.51], edwin/filcom.scm[1.181]:
Don't signal an error if a file has a "find-file initialization" that
specifies an non-existent environment or syntax table. Instead, just
print a warning message and set the environment to the default.

* edwin/edwin.pkg[1.159]:
Change to use new CREF OS-conditionalization expression, so that this
file can be shared between unix, OS/2, DOS, and Windows without
editing. Also add changes for OS/2 subprocess support.

* edwin/edwin.ldr[1.53]:
Change to load subprocess support for OS/2 as well as unix.

* edwin/edtfrm.scm[1.88]:
Don't allow the mouse to select the typein window if it is inactive.

* edwin/editor.scm[1.238]:
Change loading of editor init file so that it is performed before
starting the inferior REPL. Also do not temporarily change the
current buffer to a dummy buffer during this load.

* edwin/dirunx.scm[1.8], edwin/vc.scm[1.17]:
FIND-PROGRAM is now operating-system specific.

* edwin/comint.scm[1.21]:
Generalize code that finds the extent of a partial filename that is to
be subject to completion. The generalization allows an operating
system specific parsing method.

* runtime/x11graph.scm[1.40]:
Implement COLOR? predicate to determine if a given graphics window
supports color.

* runtime/runtime.pkg[14.240]:
Add OS/2 graphics. Conditionalize loading of other graphics support
so that only the support needed for the operating system is loaded.
Thus, unix systems won't load OS/2 graphics, and OS/2 systems won't
load X graphics.

* runtime/os2dir.scm[1.4]:
Fix OS/2 directory sorting algorithm to be normal alphabetic sorting
on the FILE-NAMESTRING.

* runtime/make.scm[14.55]:
Console no longer does line translation, so writes to console must be
conditionalized by OS to use the correct end-of-line sequence.

Also, add initialization for OS/2 graphics.

* runtime/io.scm[14.41]:
Change MAKE-INPUT-BUFFER and MAKE-OUTPUT-BUFFER to default to text
mode rather than binary mode. Ports that do not specify the mode
usually want text mode. Unfortunately, the DOS/NT microcode believes
that the console is special -- the console microcode performs line
translation directly on those systems -- and this must be changed now.

* runtime/ed-ffi.scm[1.10]:
Add new files for OS/2 graphics.

* runtime/dosprm.scm[1.24], runtime/dospth.scm[1.21],
runtime/os2prm.scm[1.3], runtime/unxprm.scm[1.32]:
Add OS-specific definitions for EOL and EOF markers.

* cref/redpkg.scm[1.7], cref/toplev.scm[1.8]:
Don't look for old files with 4-character suffixes; this will just
make bringing up the DOS version more difficult.

* microcode/os2io.c[1.3]:
Set the NOINHERIT bit in all channels, so that the handles associated
with those channels will not be inherited by subprocesses. The
subprocess support will disable the bit in those channels that want to
be inherited.

* microcode/os2pmcon.c[1.3]:
Fix some timing errors associated with opening the console window.

* microcode/os2pm.h[1.3], microcode/pros2pm.c[1.2]:
Change all coordinate variables from "unsigned short" to "short".
Implement operations needed to draw lines and points in windows, to
determine the capabilities of the display, and to change the title bar
of a window. Extend the window-opening procedure to allow the window
style to be specified. Change PM primitives to allow multiple event
queues, so that messages for graphics windows can be kept separate
from messages for Edwin windows.

1995-01-05 Stephen Adams <[email protected]>

* microcode/fixnum.c[9.38]:
Added primitive INDEX-FIXNUM? from the split typecode system to allow
some runtime files to be merged.

1995-01-05 Chris Hanson <[email protected]>

* microcode/os2pm.c[1.3]:
Change all coordinate variables from "unsigned short" to "short".
Implement operations needed to draw lines and points in windows, to
determine the capabilities of the display, and to change the title bar
of a window. Extend the window-opening procedure to allow the window
style to be specified. Change PM primitives to allow multiple event
queues, so that messages for graphics windows can be kept separate
from messages for Edwin windows.

* microcode/os2msg.c[1.4]:
Add mechanism to "unread" messages back to the head of a message
queue. Add mechanism to get the other end of a qid pair. Eliminate
logic error that was being generated when sending a message to a qid
whose other end had been closed (now we just discard the message).
Reimplement message queues to NOT use the OS/2 queue abstraction --
apparently these queues use quite alot of memory and I recently ran
into a situation in which the memory was exhausted, which caused
Scheme to die. Now, the memory needed for the queues is taken from
the Scheme process's virtual memory.

* microcode/os2msg.h[1.4]:
Add messages for graphics and subprocess support. Also add new
mechanism for "unreading" messages from a message queue.

* microcode/prosproc.c[1.14]:
IBM's OS/2 C runtime library doesn't have `environ' -- instead it has
`_environ', which is equivalent -- so add a conditionalized
definition.

* microcode/pros2io.c[1.2]:
Add subprocess changes to "select" support.

* microcode/pros2fs.c[1.2]:
Implement DRIVE-TYPE primitive, which is used to distinguish between
FAT and HPFS file systems where needed. Also, change the appearance
of the "mode string" returned by the FILE-INFO primitive.

* microcode/os2cthrd.c[1.4], microcode/os2cthrd.h[1.3],
microcode/os2pipe.c[1.3]:
Change implementation of readahead in input channels that require it.
Readahead is now buffered in the input queue by means of a new
operation to push a message back onto the head of the queue. Also,
there is now a mechanism to delay starting the readahead thread until
the first read occurs on the channel -- this is used for input pipes
that are passed to child processes and never read from the Scheme end.
It's important that such pipes not be read from.

* microcode/os2conio.c[1.5]:
Console must not perform newline translation -- that will be done by
runtime system. Implement changes so that console works correctly
with "translated" input and output.

* microcode/os2top.c[1.5], microcode/syscall.h[1.7]:
Add new system calls needed for OS/2 subprocess support.

* microcode/os2api.h[1.3]:
Eliminate "os2api.c" and add new system calls needed for subprocess
support.

* microcode/os2.c[1.3]:
Put serializing lock in OS2_create_queue to guarantee atomic update to
global counter variable.

* microcode/os2utl/makefile[1.4]:
Change to use static linking. Add support for subprocesses. Delete
"os2api.c".

* cref/make.scm[1.13], cref/redpkg.scm[1.6], cref/toplev.scm[1.7]:
Implement new OS-TYPE-CASE expression; this is used to have
operating-system specific conditionalizations in the package file.
Also change all of the file types generated by CREF to be 3 characters
long instead of 4; the code will automatically rename or delete the
old names when they are seen.

1994-12-19 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.158]:
Can no longer define (edwin win-commands) package because it now
depends on other undefined win32 packages.

* microcode/os2.c[1.2], microcode/os2.h[1.3], microcode/os2api.h[1.2],
microcode/os2conio.c[1.4], microcode/os2cthrd.c[1.3],
microcode/os2env.c[1.2], microcode/os2fs.c[1.2],
microcode/os2io.c[1.2], microcode/os2msg.c[1.3],
microcode/os2msg.h[1.3], microcode/os2pm.c[1.2],
microcode/os2pm.h[1.2], microcode/os2pmcon.c[1.2],
microcode/os2top.c[1.4], microcode/os2utl/makefile[1.3]:
Many changes to support Edwin. Converging on a final design for the
OS/2 support.

* microcode/term.c[1.11]:
Reconditionalize so that OS/2 is handled much like Windows -- using
message boxes to show fatal output rather than writing it on the
controlling terminal as in unix.

* microcode/syscall.h[1.6]:
Add some more OS/2 system calls.

* microcode/regex.c[1.15]:
Fix bug: must use signed character type when doing sign extension.
IBM's OS/2 C compiler makes characters unsigned by default.

* microcode/outf.c[1.6]:
Add support for OS/2 message boxes, and send standard I/O to the
console window.

* microcode/boot.c[9.93]:
Define hook to start interpreter for OS/2, needed in order to trap
exceptions properly, much as in Windows.

* runtime/conpar.scm[14.35], runtime/make.scm[14.54]:
Merge in changes from split-tag system.

* runtime/conpar.scm[14.34]:
Merge in changes for OS/2 and from new compiler.

* runtime/make.scm[14.53]:
Change cold-load order to put INITIALIZE-SYSTEM-PRIMITIVES! before the
thread initialization. This is because OS/2 wants to initialize its
select-registry mechanism before the thread initialization attempts to
use it.

* runtime/conpar.scm[14.33]:
Generalize HARDWARE-TRAP-FRAME/CODE to correctly handle OS/2
exception frames.

* runtime/dospth.scm[1.20]:
Fix code to do directory simplification better. Eliminate some more
unnecessary restrictions.

* runtime/os2dir.scm[1.3]:
Tweak: OS/2 directory reader directly implements wildcard searches.

* runtime/os2prm.scm[1.2]:
Implement additional support needed for Edwin.

* runtime/uerror.scm[14.42]:
Add code to handle OS/2 hardware exceptions.

* runtime/ed-ffi.scm[1.9]:
Add DOS and OS/2 files.

* runtime/sfile.scm[14.15]:
In COPY-FILE, move mode-setting statement after closing of output
file. This is required under OS/2, since setting the file modes is
prohibited for a file that is opened for writing.

* runtime/dosprm.scm[1.23], runtime/pathnm.scm[14.29],
runtime/runtime.pkg[14.239], runtime/utabs.scm[14.12]:
Implement and use new variable MICROCODE-ID/OPERATING-SYSTEM.

* edwin/edwin.pkg[1.157], edwin/edwin.pkg[1.156]:
Undo PC-specific changes from previous revision. Add OS/2 files.

* edwin/dos.scm[1.19], edwin/fileio.scm[1.122], edwin/unix.scm[1.43]:
Add new operating-system dependency: OS/SET-FILE-MODES-WRITABLE!.

* edwin/filcom.scm[1.180]:
Sort ed-ffi database after it is loaded in order to protect against
user error in these files.

* edwin/decls.scm[1.53], edwin/ed-ffi.scm[1.36], edwin/edwin.ldr[1.52]:
Add OS/2 files.

* edwin/comred.scm[1.112]:
Fix bug that caused asynchronous thread events, and therefore C-g, to
stop working after the first time C-g was typed.

* edwin/ansi.scm[1.7], edwin/loadef.scm[1.27], edwin/make.scm[3.85]:
Use new variable MICROCODE-ID/OPERATING-SYSTEM.

1994-12-15 Stephen Adams <[email protected]>

* runtime/uenvir.scm[14.34]:
Added check for valid dbg-procedure/block to avoid SIGSEGV with the
(temporarily) broken new debug info.

* runtime/arith.scm[1.30]:
Changed the implementation of +, -, *, /, <, <=, =, >=, >, min and max
(most of the user-level lexprs) to use entities.

Naive uses of these procedures is now a lot faster, e.g.

(sort! vector <)

is just over twice as fast.

1994-12-06 Stephen Adams <[email protected]>

* runtime/runtime.sf[14.10]:
Used LOAD-OPTION to load cref.

This ensures that, when cross-syntaxing, the host system's cref is
loaded, not the cref from the target system.

1994-12-02 Stephen Adams <[email protected]>

* runtime/runtime.pkg[14.238]:
I exported *pp-auto-highlighter*
cph did something for os2.

* runtime/pp.scm[14.31]:
Added *pp-auto-highlighter*.

When *pp-auto-highlighter* is #F (the default) pp behaves as before.

When assigned a procedure of one argument this procedure is called for
each part of the input tree. It may return:

. #F indicating that pp should proceed normally

. a new form which is pretty printed instead of the input, for
example, it may be wrapped with a highlight.

* runtime/parse.scm[14.27]:
Fixed string reading again. This time it uses a string output prort
to accumulate the characters.

1994-12-02 Chris Hanson <[email protected]>

* microcode/os2utl/makefile[1.2]:
Changes for PM interface.

* microcode/outf.c[1.5], microcode/outf.c[1.4]:
Implement special support for OS/2 console.

* microcode/os2.h[1.2]:
Add PM interface header file.

* microcode/os2conio.c[1.3], microcode/os2msg.c[1.2],
microcode/os2msg.h[1.2]:
Numerous changes driven by implementation of PM interface.

* microcode/os2cthrd.c[1.2], microcode/os2cthrd.h[1.2],
microcode/os2pipe.c[1.2]:
Add "OS2_" prefixes to exported procedure names. Implement "readahead
buffer" abstraction.

* microcode/os2top.c[1.3]:
Change initialization sequence so that OS/2 can start up its console
window before the first `outf' call occurs. Also add initialization
for PM console.

* microcode/Attic/dostop.c[1.11], microcode/boot.c[9.92],
microcode/nttop.c[1.14], microcode/uxtop.c[1.16]:
Change initialization sequence so that OS/2 can start up its console
window before the first `outf' call occurs.

1994-12-01 Stephen Adams <[email protected]>

* runtime/parse.scm[14.26]:
Fixed in PARSE-OBJECT/STRING-QUOTE to make it behave better when
reading large strings with escapes. Removed recursion and to reduced
consing by doing a single string-append at the end rather than one per
escape.

Desirable for 7.3 release.

1994-11-28 Chris Hanson <[email protected]>

* microcode/os2conio.c[1.2], microcode/os2term.c[1.2]:
Fix think-o.

* microcode/prosterm.c[1.14]:
Add OS/2 console to list of terminal-like channels.

* runtime/io.scm[14.40]:
Generalize runtime system's notion of "terminal" to coincide with that
of microcode. Add OS/2 console to list of terminal-like channels.

* runtime/os2dir.scm[1.2]:
*** empty log message ***

* runtime/dospth.scm[1.19], runtime/make.scm[14.52],
runtime/pathnm.scm[14.28], runtime/unxpth.scm[14.16]:
Eliminate "canonicalization" from pathname abstraction; this doesn't
belong here. Change pathname abstraction so that DOS, NT, and OS/2
can share an single pathname implementation.

* microcode/cmpauxmd/makefile[1.3]:
Add rule to generate OS/2 assembly language file.

* microcode/cmpauxmd/i386.m4[1.34]:
Tweak to last change.

* microcode/utils.c[9.67]:
Clip out C_call_scheme under OS/2 -- this isn't needed.

* microcode/syscall.h[1.5]:
Final update for first working version of OS/2 port.

* microcode/Attic/posixtyp.h[1.11]:
Add conditionalizations for compiling with gcc under OS/2.

* microcode/option.c[1.40]:
Generalize handling of filenames to treat OS/2 like DOS and NT.

* microcode/cmpauxmd/i386.m4[1.33]:
Add tweaks necessary to get this running under OS/2.

* microcode/Attic/config.h[9.85]:
Define a special hook to allow OS/2 to shut down its extra threads in
an orderly way when Scheme exits.

* microcode/cmpint.c[1.84], microcode/cmpintmd/i386.h[1.25]:
Add markers to identify procedures that are called from assembly
language, so that they can be compiled with different calling
conventions from the default.

* microcode/cmpgc.h[1.28]:
Supply missing definition needed for no-compiled-code support case.

* microcode/Attic/dostop.c[1.10], microcode/boot.c[9.91],
microcode/nttop.c[1.13], microcode/os2top.c[1.2],
microcode/uxtop.c[1.15]:
Call dstack_initialize and transaction_initialize from main rather
than from the operating-system specific initialization procedures.

1994-11-27 Chris Hanson <[email protected]>

* microcode/option.c[1.39]:
Fix bug in previous change.

1994-11-26 Guillermo J. Rozas <[email protected]>

* compiler/base/infnew.scm[4.11.1.1],
compiler/base/toplev.scm[4.52.1.2],
compiler/machines/spectrum/make.scm[4.89.1.1],
compiler/machines/spectrum/rules3.scm[4.41.1.2],
compiler/machines/spectrum/rulrew.scm[1.12.1.1]:
Make source information propagate correctly

1994-11-20 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.237]:
Export new names for channel-file-length etc.

* microcode/prosfile.c[1.7]:
Fix name conflict with new OS/2 primitive FILE-LENGTH.

* edwin/notify.scm[1.15]:
Change to use new file-length procedure.

* runtime/dosprm.scm[1.22], runtime/infutl.scm[1.57],
runtime/unxprm.scm[1.31]:
Implement file-length procedure.

* edwin/docstr.scm[1.2], edwin/fileio.scm[1.121],
runtime/fileio.scm[1.8], runtime/io.scm[14.39],
runtime/sfile.scm[14.14]:
Rename procedures:
file-length => channel-file-length
file-position => channel-file-position
file-set-position => channel-file-set-position
This is needed to free up `file-length' for use as a procedure that
accepts a file name as argument and returns the file's length.

* microcode/option.c[1.38]:
Don't use `access' -- use `OS_file_access' instead.

1994-11-20 Guillermo J. Rozas <[email protected]>

* runtime/framex.scm[14.18]:
Delay environment construction until after it is determined that
the debugging info contains a valid environment.

* runtime/framex.scm[14.17]:
Add new compiled-code methods for new compiler.

1994-11-19 Chris Hanson <[email protected]>

* microcode/fasl.h[9.36]:
Fix typo that causes compiler warning in OS/2 compiler.

1994-11-14 Stephen Adams <[email protected]>

* runtime/wttree.scm[1.6]:
Removed unused procedure.
Added comment.

* runtime/wttree.scm[1.5]:
Copyright date.

1994-11-14 Chris Hanson <[email protected]>

* microcode/os.h[1.5], microcode/osscheme.c[1.8],
microcode/osscheme.h[1.9], microcode/syscall.h[1.4],
microcode/utils.c[9.66]:
More small changes for OS/2.

* microcode/intrpt.h[1.18]:
Implement CLEAR_INTERRUPT_NOLOCK (needed for OS/2).

* microcode/prosio.c[1.12]:
Eliminate compiler warning.

* edwin/strpad.scm[1.7]:
Make WRITE-STRINGS-DENSELY more consistent -- it should not terminate
its output with a newline.

* edwin/editor.scm[1.237]:
Reformat to eliminate over-long line.

* microcode/Attic/dosio.c[1.8], microcode/Attic/dosio.h[1.4],
microcode/ntio.c[1.10], microcode/ntio.h[1.6],
microcode/osio.h[1.10], microcode/prosio.c[1.11],
microcode/uxio.c[1.34], microcode/uxio.h[1.4]:
Eliminate old channel select registry mechanism.

* runtime/io.scm[14.38]:
Eliminate unix-specific CHANNEL-TYPE=FOO? predicates. Use new
CHANNEL-TYPE-NAME primitive if it is available.

* runtime/runtime.pkg[14.236]:
Eliminate unix-specific channel-type=foo? predicates.

* microcode/prosio.c[1.10]:
Implement channel-type-name primitive, which should isolate the
runtime system from definitions of microcode channel-type indices.

1994-11-13 Chris Hanson <[email protected]>

* microcode/osio.h[1.9]:
Expand channel_type table to include OS/2 channel types. Rename
unix-specific channel types (defining old names as aliases).

1994-11-12 Stephen Adams <[email protected]>

* runtime/prgcop.scm[1.5]:
Attended to bugs in copying DEFINITIONS and SEQUENCEs.

1994-11-06 Stephen Adams <[email protected]>

* edwin/win32com.scm[1.3]:
Corrected a primitive's arity.

* win32/graphics.scm[1.6]:
Added DESCRIPTOR->DEVICE argument to OPERATION/OPEN.
Graphics windows are now GC-ed and deleted before exit.

* runtime/x11graph.scm[1.39]:
*** empty log message ***

* runtime/graphics.scm[1.13], runtime/starbase.scm[1.11]:
OPERATION/OPEN now takes an mandatory argument DESCRIPTOR->DEVICE
which converts a descriptor into a user level GRAPHICS-DEVICE.

This allows a graphics device implementation access to the user level
GRAPHICS-DEVICE object at initialization time, which may be used in in
protection lists etc (as is done in the win32 implementation).

1994-11-04 Chris Hanson <[email protected]>

* runtime/unpars.scm[14.37]:
Change printed representation of undefined values.

* runtime/usrint.scm[1.13]:
Change ";No value" to ";No useful value" per discussion with Meyer.

1994-11-03 Stephen Adams <[email protected]>

* edwin/display.scm[1.6], edwin/editor.scm[1.236],
edwin/edwin.ldr[1.51], edwin/win32.scm[1.3]:
Fixed edwin.ldr. Some files were loaded twice.

Changed the selection of a default display type.

If a display type is requested but is not available then an error is
generated (the code used not to check).

There is no longer a preference for the display type 'CONSOLE, so the
list of defined types is always searched. The initialization sequence
in edwin.ldr is tterm before (xterm or win32), which puts the
graphical display types ahead of the console in the display types
list, and this places them at a higher desirability.

Doing this revealed that the win32 availablility predicate was
implemented incorrectly.

* edwin/bios.scm[1.4], edwin/tterm.scm[1.26]:
Fixes to allow bios and the new tterm to work together.

1994-11-02 Stephen Adams <[email protected]>

* win32/wf_user.scm[1.4]:
New Win32 API procedures: GET-FOCUS, SET-ACTIVE-WINDOW and SHOW-WINDOW.

* microcode/ntutl/makefile[1.16]:
Turned on optimization for worthwhile files:

gcloop.c: test gc improved from 1.71s to 0.84s.
fasload.c: fasloading large files is 20% faster.

(Of course, debugging problems in these areas will be hell, unless
they optimizations are (trivially) turned back off).

* microcode/ntgui.c[1.14]:
Rationalized or removed screen primitives to support the impoved Edwin
Win32 Screen.

* microcode/ntutl/ntgui.rc[1.8]:
Add Coffee Icon.
Update copyright date.

* microcode/ntscreen.c[1.22], microcode/ntscreen.h[1.10]:
Changes mainly to support the impoved Edwin Win32 Screen.

. Eliminated WM_ERASEBKGND. Changed WM_PAINT to paint in the pixels
near the edge that WM_ERASEBKGND. This change is more efficient
and avoids flicker on resizing.

. One icon per screen rather than one for all screens.

. Key and mouse messages are not converted into input events when
window is iconic

. Added a focus-tracking device for use by Edwin. Re-worked Focus
and Caret code to get it right.

. Window text color defaults to the system default rather than black.

. New mode SCREEN_MODE_VK_KEYS controls whether arrow key events are
sent as special keys or emacs-ascii (^P for up etc).

. Minimum screen size is 3 rows of 5 columns, pending rework of edwin
to advise screen sizes

* microcode/ntutl/conses.ico[1.2]:
Tidying.

* edwin/edwin.pkg[1.155]:
Changes for the new Win32 screen driver (which somehow got omitted
last time), plus changes for the improvements.

* edwin/debug.scm[1.33]:
DEBUGGER-START-NEW-SCREEN? is now default true for all systems.
(This does the right thing for consoles, Xterms and Win32 screens.)

* edwin/win32com.scm[1.2]:
New command:

SET-ICON sets the current screen's icon picture.

New variables:

SCREEN-NAME-FORMAT
SCREEN-NAME-LENGTH

These are like the X-* version, but no icons names as Windows does not
make X's distinction between window and icon names. Default values
are same as for X.

* edwin/win32.scm[1.2]:
Improvements to the Win32 screen driver

. Rationalized names and the interface to some primitives.

. Added screen name feature (like X version)

. Ensured that windows are closed before exit / disk-restore.

. Fixed bug in screen resize (you *have* to guard against resizing to
the same size otherwise the rest of the system allocates new
matrixes and then decides to optimize the screen reorganization,
leading to random stuff being copied from the uninitialized
matrixes to the screen).

. The Close Window menu item now closes the window if there are more
than one, otherwise it behaves like ^X ^C

. Debugged multiple screens. Added a whole load of black magick for
keeping Edwin's idea of the selected-screen in synch with the
Windows screen with the input focus.

. There is no need to hide the cursor (Caret) during redisplay as
windows does this anyway, and manually hiding it causes visible
caret flicker.

* edwin/buffer.scm[1.167]:
Changing WITHOUT-INTERRUPTS to WITH-EDITOR-INTERRUPTS-DISABLED
was not the right thing.

WITH-EDITOR-INTERRUPTS-DISABLED is required in the running editor but
the first buffer is created before the editor structure exists, and
variables may be set as early as initial file load time (prior to
dumping the band) -- e.g vc.scm.

WITHOUT-EDITOR-INTERRUPTS choses to do either a WITHOUT-INTERRUPTS or
a WITH-EDITOR-INTERRUPTS-DISABLED (confused?). Perhaps
WITH-EDITOR-INTERRUPTS-DISABLED ought to have this behaviour.

1994-11-01 Stephen Adams <[email protected]>

* edwin/intmod.scm[1.85]:
Added a message to INFERIOR-REPL-DEBUG as this may take a long time
when initially started.

* edwin/ansi.scm[1.6]:
Extended definition of ansi terminal driver trivially so that it
matches the new termcap code.

* edwin/tterm.scm[1.25]:
Added a feature to decode special keys that are defined in the termcap
entry. These now appear to Edwin as the special keys like up, left
and f5.

* edwin/termcap.scm[1.6]:
Added termcap info for special keys (up, left, f5 etc).

1994-11-01 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.166]:
Change instances of without-interrupts to
with-editor-interrupts-disabled.

1994-10-30 Chris Hanson <[email protected]>

* runtime/load.scm[14.50]:
Change default for suspend files so that they are NOT generated by
default. These aren't used much and they quickly clutter the file
system.

1994-10-28 Jason Wilson <[email protected]>

* runtime/hashtb.scm[1.20]:
I added hash-table/get-key which is useful when implementing sets and
even more useful when using hash-tables to intern objects which you
would also like to attach datums to.

1994-10-26 Stephen Adams <[email protected]>

* edwin/dos.scm[1.18]:
Fixed accidental damage to INSERT-DISRECTORY!

* win32/win_ffi.scm[1.4]:
Fixed bug which caused an old wndproc to be associated with a new window
if the handles were the same.

* win32/win32.pkg[1.5], win32/win32.pkg[1.4]:
runtim => runtime

* win32/wf_user.scm[1.3]:
Added DESTROY-WINDOW.
Edit IS-MENU => IS-MENU?
Fixed GetMenuString

* win32/graphics.scm[1.5]:
Rationalized error reporting.

1994-10-26 Chris Hanson <[email protected]>

* edwin/xcom.scm[1.12]:
Add aliases for the old x-FOO commands.

1994-10-25 Stephen Adams <[email protected]>

* microcode/ntscreen.c[1.21]:
Numerous changes, either bug fixes or changes to accomodate the new
Edwin Win32 Screen.

The events have been tweaked.

Several entry points have been exported or written to allow
efficient update of the display character grid by the new Edwin
Win32 Screen driver.

The display code has been fixed. It was seriously broken and then
heavily kludged-upon. Now it does the right thing for WM_PAINT and
WM_ERASEBKGND. This fixes the windows 3.1 problem of repainting the
whole screen of a resize. It would probably be even better to
eliminate WM_ERASEBKGND completely and make the resize code invalidate
the orphan pixels which do not correspond to a character position.
This would prevent the `flash' as the screen is repainted after a
resize and then repainted again after Edwin has decided (or not) to
change the display (line wraps etc) to fit the new size.

Keyboard. Added direct code for all the `function' keys (like PgUp,
f5 etc). Removed MIT_TranslateMessage, which was the wrong thing
because it screwed non-edwin windows (like buttons, dialogs, menus,
...). Most of the keys are now handled specially at the WM_KEYDOWN
level, avoiding WM_CHAR. This makes it possible to generate something
for C-7 and M-C-<key>. This is done in a very US keybaord layout
specific way. The right thing is to ask what the key normally does
(the KEYMAP program on the Developer's network does this) and then do
the emacs thing only if the key is not o-umlaut or
grave-accent-modifier (`deadkey') or whatever.

* microcode/ntscreen.h[1.9]:
See ntscreen.c

* microcode/ntgui.c[1.13]:
Added primitives for efficient access to the screen window (ntscreen.c).

* microcode/ntenv.c[1.10]:
Changed OS_process_clock so that it returns the process time (rather
than the real time) under NT (or any variant of Win32 that supports
GetProcessTimes).

* edwin/calias.scm[1.15], edwin/debug.scm[1.32], edwin/decls.scm[1.52],
edwin/ed-ffi.scm[1.35], edwin/edwin.ldr[1.50],
edwin/edwin.pkg[1.154], edwin/modefs.scm[1.148],
edwin/xcom.scm[1.11], edwin/xmodef.scm[1.2]:
Changes to merge with Win32 edwin screen driver and support.

The main change is the addition of a new Edwin screen device for
Win32. The new device implements special keys and mouse buttons. A
certain degree of reorganization has been done to make the X and Win32
versions as similar as possible. Some things that used to be called
X-MUMBLE are now just called MUMBLE (e.g BUTTON1-UP, MOUSE-SET-POINT).

New files:
win32.scm: New screen device
win32com.scm: Win32 specific commands
key-w32.scm, key-x11.scm: System specific handling of special keys
(arrows etc). These files replace key.scm
mousecom.scm: mouse commands, edited from xcom.scm

Notable changes:
calias.scm: much of the old key.scm was moved here. Now the keys
`f1', `up' etc are available in all Edwins, even if the keyboard
cannot generate them. (I have a prototype fix for the console
screen driver too).

debug.scm, modefs.scm, xmodef.scm: renamed and/or reorganized
bindings

xcom.scm: A whole lot of this moved to mousecom.scm

* edwin/dos.scm[1.17]:
Fix working-directory lossage.

1994-10-25 Chris Hanson <[email protected]>

* edwin/comman.scm[1.79]:
Add new procedure COPY-COMMAND.

1994-10-13 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.153], edwin/eystep.scm[1.2],
runtime/ystep.scm[1.2]:
Add new procedures YNODE-EXP-SPECIAL and YNODE-RESULT-SPECIAL to
identify special markers within the ynode structure.

1994-10-12 Chris Hanson <[email protected]>

* edwin/txtprp.scm[1.16]:
Fix bug in SPLIT-INTERVAL-LEFT!: because the splitting process could
insert a new interval node in a non-leaf position, one of the
assumptions of INSERT-FIXUP! was violated. This is fixed by making
sure that the inserted node is always inserted in a leaf position.

* edwin/vc.scm[1.16]:
All existing calls to CURRENT-VC-MASTER require the optional #T
argument because the callers cannot handle a returned value of #F.

* edwin/debug.scm[1.31]:
Fix typo in previous change.

* edwin/decls.scm[1.51], edwin/ed-ffi.scm[1.34],
edwin/edwin.pkg[1.152], edwin/loadef.scm[1.26],
edwin/schmod.scm[1.37]:
Add autoloaded stepper support. Requires corresponding support in
runtime system.

1994-10-11 Chris Hanson <[email protected]>

* edwin/debug.scm[1.30], edwin/edwin.pkg[1.151],
edwin/txtprp.scm[1.15]:
Move HIGHLIGHT-REGION-EXCLUDING-INDENTATION to "txtprp.scm" and export
it to the edwin package.

* edwin/debug.scm[1.29]:
Change HIGHLIGHT-REGION-EXCLUDING-INDENTATION to have same interface
as HIGHLIGHT-REGION.

* runtime/option.scm[14.32]:
Fix think-o that resulted in unused variable.

* runtime/ed-ffi.scm[1.8], runtime/optiondb.scm[1.2],
runtime/runtime.pkg[14.235]:
Add stepper to runtime system as load option.

1994-10-10 Chris Hanson <[email protected]>

* runtime/uerror.scm[14.41]:
Use SYSTEM-CALL-ERROR-MESSAGE primitive to allow microcode to provide
more meaningful error messages if possible. If the microcode is
unable to provide an error message, fall back to the previous
strategy.

1994-10-09 Chris Hanson <[email protected]>

* edwin/info.scm[1.119], edwin/info.scm[1.118], edwin/tximod.scm[1.19],
microcode/fft.c[9.32]:
Eliminate random control characters in source text.

1994-10-08 Chris Hanson <[email protected]>

* edwin/edwin.ldr[1.49]:
Use new NO-ERROR optional argument to LOAD-OPTION to prevent errors if
the KRYPT option is not present.

* runtime/option.scm[14.31]:
Add optional argument to LOAD-OPTION; this is a flag that says to not
signal an error if the option is unknown.

* microcode/Attic/dostop.c[1.9], microcode/nttop.c[1.12],
microcode/uxtop.c[1.14]:
Eliminate compiler warning from previous change.

1994-10-07 Stephen Adams <[email protected]>

* microcode/ntfs.c[1.7]:
Fixed a bug in the directory read whereby the OS handle was never
closed. This manifested under Windows 3.1 as Edwin being unable to do
filename completion or file saving after 32 handles were opened but
never closed.

This fix should go in the 7.3 release.

* edwin/dos.scm[1.16]:
Undid previous ill-thought-out edits to the backup file name stuff.

* edwin/dos.scm[1.15]:
*** empty log message ***

1994-10-07 Chris Hanson <[email protected]>

* microcode/Attic/oscond.h[1.18]:
Fix OS/2 conditionalizations.

1994-10-05 Stephen Adams <[email protected]>

* microcode/ntgui.c[1.12]:
Removed some opportunities for GC to cause a side-effecting primitive
to be restarted.

* microcode/interp.h[9.40]:
Changed macro IMPORT_REGS_AFTER_PRIMITIVE to import the History
because the primitive may have (indirectly) called C_call_scheme to
recursively enter the interpreter which will may rotate the History.

1994-10-04 Chris Hanson <[email protected]>

* microcode/Attic/dostop.c[1.8], microcode/boot.c[9.90],
microcode/boot.c[9.89], microcode/boot.c[9.88],
microcode/intern.c[9.54], microcode/nttop.c[1.11],
microcode/utabmd.scm[9.76], microcode/utabmd.scm[9.75],
microcode/uxtop.c[1.13], microcode/version.h[11.148]:
Add new OS-dependent mechanism for building the system-call names
tables that the runtime system uses for detecting and reporting
system-call errors. This change is upwards compatible with previous
versions of the microcode and also with previous versions of the
runtime system.

* microcode/Attic/oscond.h[1.17], microcode/Attic/oscond.h[1.16],
microcode/Attic/posixtyp.h[1.10], microcode/intrpt.h[1.17]:
Add conditionalizations for OS/2.

1994-10-03 Stephen Adams <[email protected]>

* runtime/option.scm[14.30]:
Changed LOAD-OPTION yet again:

. options are specified in a Scheme file (optiondb.scm), instead of
using a data file (options.db).

. options can be defined at the scheme REPL or in a .scheme.init file

* runtime/runtime.pkg[14.234]:
Changes for new LOAD-OPTION system:
Export constructors for definine load options.

1994-09-30 Stephen Adams <[email protected]>

* runtime/runtime.pkg[14.233]:
Sorry, that was *INITIAL-OPTIONS-FILE*.

* runtime/runtime.pkg[14.232]:
Exported *INITIAL-OPTIONS-FILE-PATHNAME*

* runtime/option.scm[14.29]:
Changed LOAD-OPTION to use database in separate file(s):

Features:

. No longer need to rebuild bands to make options available.
. The database is re-read so new options become available without
restarting Scheme.
. Option databases have a `parent' field (like an environment frame)
which allows the database to be tiered.
. The databse format (s-expression) is documented in options.db

1994-09-29 Stephen Adams <[email protected]>

* microcode/utils.c[9.65]:
Changed C_call_scheme to preserve and restore `last_return_code'.
This fixes a bug which manifests as an access violation during GC.

The GC bug happened because the incorrect value of `last_return_code'
left after the recursive interpretation caused a negative stack
segment size to be computed. When this was boxed as an unsigned value
it became an illegal pointer object. Note that this manifestation
would not have happened with the new tagging scheme.

1994-09-29 Chris Hanson <[email protected]>

* runtime/load.scm[14.49]:
Attempt to simulate load-pathname and after-load-hooks in
load-packed-binaries. New "make" files in subdirectories depend on
this.

1994-09-28 Chris Hanson <[email protected]>

* edwin/dirunx.scm[1.7]:
Eliminate compiler warning. Shorten page to 80 lines.

* microcode/x11base.c[1.56]:
Fix minor type error in X-LIST-FONTS. Rearrange code slightly.

1994-09-26 Chris Hanson <[email protected]>

* microcode/x11graph.c[1.33]:
Fix typo in previous change.

1994-09-21 Guillermo J. Rozas <[email protected]>

* microcode/hppanwca.c[1.3]:
Update instructions.

Add definition of _HPUX to make it compile correctly.

1994-09-19 Stephen Adams <[email protected]>

* runtime/wttree.scm[1.4]:
1. Fixed #F/() bug in NODE/FIND
2. Declared many define-structure slots as READ-ONLY.

1994-09-17 Stephen Adams <[email protected]>

* microcode/x11base.c[1.55]:
Added X-LIST-FONTS primitive.

1994-09-16 Chris Hanson <[email protected]>

* runtime/pp.scm[14.30]:
Treat LET* and LETREC specially, just like LET.

* microcode/x11base.c[1.54]:
Fix think-o in X-WINDOW-FONT-STRUCTURE.

* edwin/evlcom.scm[1.50]:
Change default for evaluate-in-inferior-repl to #t.

* edwin/intmod.scm[1.84]:
Flush input queue of inferior REPL thread when abort interrupt is
signalled.

1994-09-14 Stephen Adams <[email protected]>

* microcode/x11base.c[1.53]:
Changed font structure stuff. X-FONT-STRUCTURE checks for sufficient
heap to allocate the structure so that it will always match an
XLoadQueryFont with and XFreeFont.

New primitive X-WINDOW-FONT-STRUCTURE returns the font structure
associated with the window.

1994-09-14 Chris Hanson <[email protected]>

* edwin/dirunx.scm[1.6], edwin/dirunx.scm[1.5]:
Fix type error in M-x dired-do-compress.

1994-09-09 Stephen Adams <[email protected]>

* edwin/compile.scm[1.3]:
Added M-x grep. Sorry, no error parsing yet.

* edwin/vc.scm[1.15]:
Fix #f/() bug in VC-COMMAND-ARGUMENTS.

1994-09-08 Stephen Adams <[email protected]>

* edwin/edwin.pkg[1.150]:
Added exports to support CHAR-IMAGE-STRINGS buffer-local variable.

* edwin/buffrm.scm[1.50], edwin/bufwfs.scm[1.19],
edwin/bufwin.scm[1.303], edwin/bufwiu.scm[1.29],
edwin/bufwmc.scm[1.17], edwin/comred.scm[1.111],
edwin/image.scm[1.132], edwin/iserch.scm[1.20],
edwin/modlin.scm[1.19], edwin/motion.scm[1.86],
edwin/struct.scm[1.90], edwin/winout.scm[1.9]:
Added support for customizable imaging of characters. The per-buffer
variable CHAR-IMAGE-STRINGS holds a vector of 256 string which determine
how characters are displayed. Using an approriate vector will allow
the use of fonts with extra characters, `hex' displays, compound characters
for displaying ISO Latin text in plain ASCII and lots of other tricks.

Main components of this update:
. image.scm to pass in the char-image-strings
. bufwin.scm to cache the buffer-local variable
. callers of the imaging routines now get the caches variable
and pass it to the imaging routines.
. fixed a few buglets in the caching of buffer-local variables
. changed the criteria for calling the direct-output operations so that
they are only used for characters or strings which will be displayed
as themselves (comred.scm, winout.scm).

1994-09-08 Chris Hanson <[email protected]>

* edwin/bufwin.scm[1.302], edwin/bufwiu.scm[1.28]:
Guarantee that buffer-local variables are cached in the window before
any redisplay can happen.

1994-09-02 Stephen Adams <[email protected]>

* runtime/intrpt.scm[14.21]:
Fixed illegal-interrupt-handler to clear the bit so that the interrupts has
been cleared when the error repl re-enables all interrupts.

1994-09-01 Stephen Adams <[email protected]>

* runtime/record.scm[1.23]:
Fixed SIGSEGV bug in %record-application-method.

1994-08-25 Chris Hanson <[email protected]>

* edwin/bufwiu.scm[1.27]:
In %NOTICE-WINDOW-CHANGES!, handle cases where
GROUP-START-CHANGES-INDEX is #F.

1994-08-24 Stephen Adams <[email protected]>

* edwin/utils.scm[1.38]:
Fixed typo.

* edwin/utils.scm[1.37]:
Changed string-allocate and set-string-maximum-length to be primitives
if the non-primitive version is interpreted (not compiled). The
non-primitive versions in this file to not run interpreted.

1994-08-19 Chris Hanson <[email protected]>

* runtime/pp.scm[14.29]:
Change default for PP to be AS-CODE.

1994-08-18 Stephen Adams <[email protected]>

* runtime/unsyn.scm[14.17]:
Changed unsyntaxing of constants to be more R4RS-ish. Now the empty list
and vectors are unsyntaxed as quotations.

1994-08-15 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.83]:
Eliminate prefix spacing for READ input-port operation on interaction
buffer.

* edwin/intmod.scm[1.82], runtime/dbgcmd.scm[14.15],
runtime/emacs.scm[14.22], runtime/rep.scm[14.50],
runtime/usrint.scm[1.12]:
Change previous kludge: now, PROMPT-FOR-COMMAND- procedures accept a
prompt which is a pair whose car is the symbol STANDARD and whose cdr
is a string. Such a prompt is treated exactly as a bare string used
to be. Now, a bare string is used directly as the prompt with no
modification at all.

* runtime/usrint.scm[1.11]:
Kludge in more complicated support for PROMPT-FOR-COMMAND- procedures.
These procedures now append spaces only to the standard prompts.
Furthermore, the level number is printed on the standard console only
for these prompts.

* runtime/emacs.scm[14.21], runtime/port.scm[1.8],
runtime/runtime.pkg[14.231]:
Add additional kludge so that Emacs port is properly copied to all of
the standard places.

* edwin/intmod.scm[1.81]:
Eliminate gratuitous space from command prompt. This space is filled
in by the PROMPT-FOR-COMMAND- procedures anyway.

1994-08-12 Chris Hanson <[email protected]>

* runtime/arith.scm[1.29]:
Fix +, -, *, and / so that they are consistently left-associative.

1994-08-05 Chris Hanson <[email protected]>

* runtime/arith.scm[1.28]:
Change printing of +0.i and -0.i to be +0.i instead of -0.i

1994-08-04 Stephen Adams <[email protected]>

* runtime/runtime.pkg[14.230]:
*** empty log message ***

* runtime/unpars.scm[14.36]:
Changed *unparse-with-addresses?* to *unparse-with-datum?*

* runtime/runtime.pkg[14.229]:
Exported *unparse-with-addresses?* flag from unparser package.

* runtime/unpars.scm[14.35]:
Added *unparse-with-addresses?* flag for default unparser method.

1994-08-04 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.149]:
Rename DIRED-COMPRESS to DIRED-DO-COMPRESS. Eliminate
DIRED-UNCOMPRESS.

* edwin/dirunx.scm[1.4]:
Change commands to act on marked files and take prefix argument just
like other file commands.

* edwin/dired.scm[1.152]:
Rearrange key bindings to be closer to those of Emacs 19. Fix bug in
DIRED-REDISPLAY.

* edwin/dired.scm[1.151]:
Make DIRED-MARKED-FILES do a case-insensitive comparison.

* edwin/dired.scm[1.150]:
Add declaration to eliminate compiler warning.

* edwin/dired.scm[1.149], edwin/edwin.pkg[1.148]:
Change commands that act on marked files so that they don't unmark the
files. Implement M-DEL to allow unmarking of many files at once.
Change M-x dired to select first nontrivial line on first selection,
and not to re-read the directory on subsequent selection (both as in
Emacs 19).

1994-07-24 Chris Hanson <[email protected]>

* runtime/uerror.scm[14.40], runtime/uerror.scm[14.39]:
Add entry to trap system-call errors for the delete-directory
primitive and convert them into file-operation errors.

1994-07-16 Chris Hanson <[email protected]>

* runtime/cpress.scm[1.6]:
Eliminate case where over-long literal was being emitted.

* runtime/cpress.scm[1.5]:
Check for and eliminate case which was emitting a copy command of
length one. Such a command is ill-formed and should not be emitted.

1994-07-04 Chris Hanson <[email protected]>

* edwin/debug.scm[1.28]:
From MT: Fix bug in HIGHLIGHT-REGION-EXCLUDING-INDENTATION -- a
fencepost error that occurs when the region ends at the buffer's end.

1994-06-28 Chris Hanson <[email protected]>

* microcode/Attic/config.h[9.84], microcode/dmpwrld.c[9.38]:
Update old conditionalization based on "unix".

* microcode/unxutl/Attic/cf-dist.h[1.22]:
Change default compiler switches to enable debugging information and
to set COMPILE_STEPPER. Rearrange definitions to put complicated
HP-UX graphics options last.

* microcode/unxutl/Attic/cf-dist.h[1.21]:
Make installation of Starbase graphics support more automatic.

* microcode/unxutl/Attic/cf-dist.h[1.20]:
Fix comment that erroneously stated that COMPILE_STEPPER is defined in
"config.h".

* microcode/step.c[9.32]:
Correct comments describing stepper primitives.

1994-06-21 Chris Hanson <[email protected]>

* cref/make.scm[1.12], cref/make.scm[1.11], edwin/make.scm[3.84],
sf/make.scm[4.30], sf/make.scm[4.29]:
Disregard working directory when file is loaded; use directory that
file is loaded from instead.

1994-06-19 Chris Hanson <[email protected]>

* runtime/gensym.scm[14.4]:
Change action of argument to GENERATE-UNINTERNED-SYMBOL: a symbol or
string argument affects the result for that call only.

1994-06-02 Chris Hanson <[email protected]>

* runtime/unxprm.scm[1.30]:
Patch UNIX/SYSTEM so that it works properly when the working directory
is different from that of the microcode and when multiple threads are
in use.

* microcode/interp.c[9.84], microcode/interp.c[9.83],
microcode/interp.c[9.82]:
Patch to fix long-standing bug in forcing of promises.

1994-05-30 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.228]:
Export EQV-HASH and EQUAL-HASH.

* runtime/hashtb.scm[1.19]:
Rewrite EQV-HASH-MOD and EQUAL-HASH-MOD so that EQV-HASH and
EQUAL-HASH can be exported.

1994-05-20 Chris Hanson <[email protected]>

* edwin/dired.scm[1.148]:
Fix think-o.

* edwin/dired.scm[1.147]:
Don't advance to next line when executing dired-do-rename.

1994-05-19 Stephen Adams <[email protected]>

* microcode/ntsig.c[1.16]:
Extended catatonia timeout to 120s - much more reasonable on slow
machines.

1994-05-13 Chris Hanson <[email protected]>

* edwin/bufcom.scm[1.100]:
Use new optional argument to FIND-BUFFER to eliminate random errors
caused by commands being passed names of non-existent buffers.

* edwin/curren.scm[1.112]:
Add optional arg to FIND-BUFFER which says to signal error if buffer
doesn't exist.

1994-05-04 Chris Hanson <[email protected]>

* edwin/dired.scm[1.146]:
Delete empty directories when requested.

* edwin/utils.scm[1.36]:
Implement DELETE-DIRECTORY-NO-ERRORS.

* edwin/autosv.scm[1.30], edwin/fileio.scm[1.120],
edwin/rmail.scm[1.33]:
Use DELETE-FILE-NO-ERRORS instead of DELETE-FILE and
CATCH-FILE-ERRORS.

* runtime/sfile.scm[14.13]:
Change DELETE-FILE-NO-ERRORS to return a flag indicating its success.

1994-05-03 Chris Hanson <[email protected]>

* microcode/uxsig.c[1.31]:
Rewrite code that the Sun compiler won't accept.

1994-05-02 Chris Hanson <[email protected]>

* microcode/cmpintmd/mips.h[1.20]:
Fix typo.

1994-05-01 Chris Hanson <[email protected]>

* microcode/version.h[11.146.1.1]:
Update for release 7.3.1.

1994-04-30 Chris Hanson <[email protected]>

* edwin/vc.scm[1.14]:
Fix think-o in VC-DIFF.

* runtime/runtime.pkg[14.217.1.1]:
Changes from between revisions 14.220 and 14.221.

* microcode/option.c[1.37]:
Undo gratuitous format changes from previous revision.

* microcode/bchpur.c[9.63.1.1]:
Same changes as those between revisions 9.64 and 9.65.

* microcode/bchdmp.c[9.75.1.1]:
Same changes as those between revisions 9.77 and 9.78.

1994-04-23 Chris Hanson <[email protected]>

* edwin/comhst.scm[1.4]:
Change command history to keep track of the previous history insertion
correctly so that text inserted adjacent to the inserted item does not
get included within it.

* edwin/intmod.scm[1.80]:
Change nesting to guarantee that inferior REPL output mark is grabbed
within the interrupt-locked region.

1994-04-22 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.147], edwin/intmod.scm[1.79],
edwin/intmod.scm[1.78]:
Change handling of inferior REPL output so that it does not affect the
point of the inferior REPL buffer, and so that insertions to the right
of the output mark remain to its right when output occurs.
Additionally, implement new editor variable to control whether output
from evaluation commands in other buffers cause the evaluation results
to be written to the REPL buffer.

* runtime/graphics.scm[1.12]:
Allow first argument to MAKE-GRAPHICS-DEVICE to be optional.

1994-04-19 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.227]:
Export FLO:RANDOM-UNIT from the random number generator.

* runtime/random.scm[14.10]:
Use a flonum vector instead of a vector to hold the state of the RNG.
Rename GET-NEXT-ELEMENT to FLO:RANDOM-UNIT so that it can be exported
to the global environment.

1994-04-05 Chris Hanson <[email protected]>

* microcode/cmpauxmd/hppa.m4[1.36], microcode/cmpauxmd/hppa.m4[1.35]:
Eliminate assembly code to perform FIX/FLO and FLO/FIX cases of
generic binary operations. This code was OK for + and - but failed to
produce correct answer for * and / when one argument was exact zero.

1994-03-30 Guillermo J. Rozas <[email protected]>

* compiler/back/lapgn1.scm[4.16.1.1],
compiler/back/lapgn2.scm[1.20.1.1],
compiler/back/linear.scm[4.16.1.1],
compiler/back/mermap.scm[1.4.1.1],
compiler/back/regmap.scm[4.12.1.1],
compiler/base/asstop.scm[1.10.1.1],
compiler/base/debug.scm[4.13.1.1], compiler/base/make.scm[4.106.1.1],
compiler/base/switch.scm[4.24.1.1],
compiler/base/toplev.scm[4.52.1.1],
compiler/base/utils.scm[4.19.1.1],
compiler/machines/spectrum/compiler.pkg[1.46.1.1],
compiler/machines/spectrum/compiler.sf[1.16.1.1],
compiler/machines/spectrum/dassm1.scm[4.18.1.1],
compiler/machines/spectrum/decls.scm[4.34.1.1],
compiler/machines/spectrum/lapgen.scm[4.46.1.1],
compiler/machines/spectrum/lapopt.scm[1.14.1.1],
compiler/machines/spectrum/machin.scm[4.29.1.1],
compiler/machines/spectrum/rules1.scm[4.35.1.1],
compiler/machines/spectrum/rules2.scm[4.13.1.1],
compiler/machines/spectrum/rules3.scm[4.41.1.1],
compiler/machines/spectrum/rules4.scm[4.12.1.1],
compiler/machines/spectrum/rulfix.scm[4.46.1.1],
compiler/machines/spectrum/rulflo.scm[4.39.1.1],
compiler/rtlbase/rtlcfg.scm[4.8.1.1],
compiler/rtlbase/rtlexp.scm[4.19.1.1],
compiler/rtlbase/rtline.scm[4.10.1.1],
compiler/rtlbase/rtlreg.scm[4.5.1.1],
compiler/rtlbase/rtlty1.scm[4.21.1.1],
compiler/rtlopt/rcompr.scm[1.14.1.1],
compiler/rtlopt/rcse1.scm[4.22.1.1],
compiler/rtlopt/rcse2.scm[4.13.1.1],
compiler/rtlopt/rcseep.scm[4.6.1.1],
compiler/rtlopt/rcseht.scm[4.12.1.1],
compiler/rtlopt/rcserq.scm[4.5.1.1],
compiler/rtlopt/rdebug.scm[1.2.1.1],
compiler/rtlopt/rdflow.scm[1.2.1.1],
compiler/rtlopt/rinvex.scm[1.7.1.1],
compiler/rtlopt/rlife.scm[1.60.1.1],
compiler/rtlopt/rtlcsm.scm[1.1.1.1]:
Snapshot of new compiler.

1994-03-28 Guillermo J. Rozas <[email protected]>

* microcode/memmag.c[9.57]:
Fix comment.

1994-03-28 Michael R. Blair <[email protected]>

* wabbit/README[1.3]:
fixed xrefs

* wabbit/README[1.2]:
pretty pretty texinfo kludge

* runtime/option.scm[14.28]:
add wabbit/headhunt load option
rename pcsample option loader to "load" (from "make").

* microcode/utabmd.scm[9.74]:
typo

1994-03-25 Guillermo J. Rozas <[email protected]>

* microcode/utabmd.scm[9.73]:
Add GC-WABBIT-DESCRIPTOR.

* microcode/dosutl/Attic/makefile[1.12],
microcode/dosutl/Attic/makefile[1.11],
microcode/ntutl/makefile[1.15], microcode/unxutl/Attic/ymkfile[1.89],
microcode/unxutl/Attic/ymkfile[1.88]:
Add wabbit.c to ordinary scheme's gc files.

* microcode/fixobj.h[9.37]:
Add wabbit-hunting slot.

* microcode/wabbit.c[1.3]:
Keep track of last_object better, because there are closure patterns
embedded in compiled code blocks on the Snakes.

1994-03-24 Guillermo J. Rozas <[email protected]>

* runtime/runtime.pkg[14.226]:
Fix exports of (runtime unsyntaxer)

* runtime/unpars.scm[14.34]:
Print #!aux as itself.

* runtime/runtime.pkg[14.225]:
Export lambda-auxiliary-tag to several other places.

* runtime/parse.scm[14.25]:
Variable name mismatch.

1994-03-23 Chris Hanson <[email protected]>

* edwin/dired.scm[1.145]:
Change predicate in DIRED-MARKED-FILES in order to speed up search for
marked files. New predicate does much less work for lines that are
not marked.

1994-03-22 Chris Hanson <[email protected]>

* runtime/unsyn.scm[14.16]:
Change definition of UNSYNTAXER:MACROIZE? so that if it is not #F and
not #T then it means "don't macroize but hide internal lambda
structures".

* runtime/parse.scm[14.24], runtime/runtime.pkg[14.224],
runtime/unsyn.scm[14.15]:
Kludge: allow parser to recognize #!aux.

* edwin/rmail.scm[1.32]:
Fix bug in M-x rmail-search: when search locates the regexp in a
message that has not yet been selected, the mark yielded by the search
must be made permanent before the message is selected, because
selecting the message changes its attributes, and consequently alters
the amount of text preceding the mark.

1994-03-21 Stephen Adams <[email protected]>

* runtime/lambdx.scm[14.7]:
FIxed #F/() bug

1994-03-18 Chris Hanson <[email protected]>

* edwin/vc.scm[1.13]:
Fix typo in previous change.

* edwin/comtab.scm[1.66], edwin/comtab.scm[1.65]:
Fix kludge that defines upcased alias for keys that have char bits
set; previously it only worked for keys that had zero bits.

* edwin/vc.scm[1.12]:
Implement vc-insert-headers.

1994-03-16 Chris Hanson <[email protected]>

* edwin/make.scm[3.83]:
Numerous changes whose overall goal was the replacement of the old RCS
interface with an Emacs-19-like VC interface.

* edwin/modefs.scm[1.147]:
Bind C-x v d to vc-directory.

* edwin/vc.scm[1.11]:
Implement VC-DIRED and VC-DIRECTORY commands. Generalize various
commands to work in Dired buffers.

* edwin/dired.scm[1.144], edwin/dos.scm[1.14], edwin/edwin.pkg[1.146],
edwin/filcom.scm[1.179], edwin/unix.scm[1.42]:
* Enhance dired to allow specification of a list of files in a
specific directory in place of a directory.

* Change OS-specific code for dired to be a single entry point,
INSERT-DIRECTORY!, that can insert the listing for a single file, a
whole directory, or a wildcarded expression.

* Add new procedure, FOR-EACH-DIRED-MARK, that maps a procedure over
the marked files in a dired buffer, and unmarks each file as it is
processed.

1994-03-13 Jason Wilson <[email protected]>

* runtime/packag.scm[14.19]:
Fix rebinding of load/default-types.

1994-03-11 Chris Hanson <[email protected]>

* edwin/modefs.scm[1.146]:
Bind SHRINK-WINDOW-IF-LARGER-THAN-BUFFER to `C-x -'.

* edwin/dired.scm[1.143]:
Use SHRINK-WINDOW-IF-LARGER-THAN-BUFFER to implement special pop-up
prompts for Dired (as in Emacs 19).

* edwin/wincom.scm[1.117]:
Implement SHRINK-WINDOW-IF-LARGER-THAN-BUFFER.

* runtime/unxprm.scm[1.29]:
Implement FILE-EXECUTABLE?. Tweak logic in FILE-WRITABLE?.

* runtime/sfile.scm[14.12]:
Change COPY-FILE to preserve file modes.

* runtime/infutl.scm[1.56]:
Handle case where temporary file is manually deleted behind Scheme's
back.

1994-03-10 Chris Hanson <[email protected]>

* edwin/dired.scm[1.142], edwin/edwin.pkg[1.145]:
Eliminate idiosyncratic multiple-file copying commands in favor of
Emacs 19 generalized marking and copying commands. Rename several
commands to match the new Emacs 19 names.

1994-03-09 Chris Hanson <[email protected]>

* edwin/vc.scm[1.10]:
Fix typo in VC-RUN-SHELL-COMMAND.

* edwin/vc.scm[1.9]:
* Attach VC-PARENT-BUFFER property to vc-log buffers. Use that
property to make some of the VC commands work from the log buffer.
In particular, the VC-DIFF command now works from the log buffer.

* Generalize the log-buffer mechanism to allow multiple log buffers to
be open simultaneously.

1994-03-08 Chris Hanson <[email protected]>

* edwin/vc.scm[1.8]:
Use new 'NO-OUTPUT display style to suppress visible changes to the
screen when reverting a buffer.

* edwin/screen.scm[1.105], edwin/screen.scm[1.104]:
Add 'NO-OUTPUT display-style option which does full update of internal
data structures, but does not update the screen.

* edwin/vc.scm[1.7], edwin/vc.scm[1.6], edwin/vc.scm[1.5]:
Attempt to preserve the WINDOW-START-MARK of a buffer's window when
the buffer is reverted.

* edwin/vc.scm[1.4]:
Attempt to restore the "current" window that was in effect when the
log entry was started.

* edwin/vc.scm[1.3]:
Implement VC-LIST-LOCKED-FILES.

* edwin/curren.scm[1.111]:
Disallow window commands to select other screens by default. This
behavior must be requested by setting USE-MULTIPLE-SCREENS true.

* edwin/vc.scm[1.2]:
Fix random bugs in VC-VERSION-OTHER-WINDOW.

* edwin/modefs.scm[1.145]:
Add new definitions for VC.

* edwin/decls.scm[1.50], edwin/ed-ffi.scm[1.33], edwin/edwin.ldr[1.48],
edwin/edwin.pkg[1.144]:
Replace "rcs" with "vc" and "rcsparse".

* edwin/prompt.scm[1.162]:
* Change reference to *PREVIOUS-POPPED-UP-BUFFER*.

* Add extra optional argument to PROMPT-FOR-ALIST-VALUE; new arg
controls case-sensistivity of match.

* edwin/edwin.pkg[1.143]:
Export new definitions for MODE-NAME, MINOR-MODE-ALIST, and supporting
procedures.

* edwin/buffrm.scm[1.49], edwin/editor.scm[1.235]:
* Change definitions of and references to *PREVIOUS-POPPED-UP-WINDOW*,
*PREVIOUS-POPPED-UP-BUFFER*, and *MINIBUFFER-SCROLL-WINDOW*; they
are now bound to weak pairs instead of hash numbers.

* edwin/wincom.scm[1.116]:
* Change definitions of and references to *PREVIOUS-POPPED-UP-WINDOW*,
*PREVIOUS-POPPED-UP-BUFFER*, and *MINIBUFFER-SCROLL-WINDOW*; they
are now bound to weak pairs instead of hash numbers.

* Extend KILL-POP-UP-BUFFER to allow it to take context information so
it can restore the buffers that were popped over.

* edwin/modlin.scm[1.18]:
Change to use variables MODE-NAME and MINOR-MODE-ALIST instead of
special constructs. The special %M and %m constructs still work, but
are obsolete.

* edwin/buffer.scm[1.165]:
* Implement permanent-local declaration.

* Change BUFFER-PUT! to do BUFFER-REMOVE! if value is #F.

* Generalize VARIABLE-LOCAL-VALUE, VARIABLE-LOCAL-VALUE?, and
SET-VARIABLE-LOCAL-VALUE! to accept #F as BUFFER, meaning to
manipulate the default value instead.

* Change %SET-BUFFER-MAJOR-MODE!, ENABLE-BUFFER-MINOR-MODE!, and
DISABLE-BUFFER-MINOR-MODE! to update editor variables MODE-NAME and
MINOR-MODE-ALIST so the modeline is correct.

* edwin/sendmail.scm[1.19]:
Random rearrangements.

* edwin/utils.scm[1.35]:
Add various useful definitions.

* edwin/unix.scm[1.41]:
Can now define auto-save-default in krypt buffers, because that
variable is declared permanent-local.

* edwin/comhst.scm[1.3]:
Declare COMINT-INPUT-RING and COMINT-LAST-INPUT-MATCH to be
permanent-local.

* edwin/autosv.scm[1.29]:
Declare AUTO-SAVE-DEFAULT to be permanent-local.

* edwin/comman.scm[1.78]:
Define VARIABLE-PERMANENT-LOCAL! and VARIABLE-PERMANENT-LOCAL?.

1994-03-07 Chris Hanson <[email protected]>

* edwin/wincom.scm[1.115]:
Change OTHER-WINDOW-INTERACTIVE to not use multiple screens unless the
editor variable USE-MULTIPLE-SCREENS is true. Since the default
setting for this variable is false, the default behavior is like Emacs
19, which I find less confusing and more useful.

* edwin/debug.scm[1.27]:
Change browser to show just subexpression of a subproblem line, since
this is what is most interesting about that line. This takes less
space and is less confusing than the previous behavior, which showed
the whole expression and highlighted the subexpression.

1994-03-04 Chris Hanson <[email protected]>

* edwin/edwin.ldr[1.47]:
Load hash tables.

* runtime/sfile.scm[14.11]:
Add FILE-EQ? procedure.

* edwin/unix.scm[1.40]:
Change OS/PRECIOUS-BACKUP-PATHNAME to use Emacs 19 names.

* edwin/modlin.scm[1.17], edwin/notify.scm[1.14]:
Change notifier to use only the GLOBAL-MODE-STRING editor variable.

1994-03-03 Chris Hanson <[email protected]>

* edwin/tparse.scm[1.69]:
Fix minor bug in BACKWARD-ONE-PARAGRAPH.

1994-03-02 Guillermo J. Rozas <[email protected]>

* runtime/string.scm[14.11]:
Change string->list not to be brain dead.

* runtime/string.scm[14.10]:
Change string->list to be iterative.

1994-03-01 Chris Hanson <[email protected]>

* runtime/graphics.scm[1.11]:
Fix bug in GRAPHICS-TYPE-AVAILABLE? -- this bug is present in the
7.3.0 release and must be fixed there also.

1994-02-25 Chris Hanson <[email protected]>

* runtime/Attic/syntax.scm[14.25]:
Fix bug in previous change.

1994-02-22 Chris Hanson <[email protected]>

* runtime/Attic/syntax.scm[14.24], runtime/runtime.pkg[14.223]:
Add means to detect whether a macro is being expanded at "top level".

1994-02-21 Chris Hanson <[email protected]>

* edwin/rmail.scm[1.31]:
Eliminate another #f vs. '() bug.

1994-02-19 Guillermo J. Rozas <[email protected]>

* runtime/lambdx.scm[14.6]:
Remove extraneous parameter in call to make-lambda.

* runtime/lambdx.scm[14.5]:
Prevent internally defining a name from causing a duplicate name
error.

1994-02-18 Chris Hanson <[email protected]>

* microcode/uxsig.c[1.30], microcode/uxsig.h[1.4]:
Move default definition of `record_signal_delivery' to "uxsig.h".

1994-02-18 Guillermo J. Rozas <[email protected]>

* runtime/lambda.scm[14.12]:
Improve duplicate parameter test in lambda.scm

1994-02-16 Guillermo J. Rozas <[email protected]>

* runtime/list.scm[14.19]:
Improve defn. of fold-left and fold-right.

1994-02-15 Chris Hanson <[email protected]>

* microcode/ux.h[1.61], microcode/uxsig.c[1.29]:
Add additional kludge to last change to guarantee that the SIGCHLD
handler is correctly reinstalled after `grantpt' is run. The previous
change eliminated the serious bug but introduced another one.

* microcode/uxsig.c[1.28], microcode/uxsig.h[1.3]:
* Add debugging tool to keep trace of signal delivery in a history.
The code to do this is disabled unless DEBUG_SIGNAL_DELIVERY is
defined.

* Define alternate version of `signal' to work around bug in Sony
NEWS-OS 5.0.2. Scheme doesn't use `signal' on that system, but libc
does.

* Eliminate incorrect extra binding of signal handler for SIGIOT.

1994-02-15 Guillermo J. Rozas <[email protected]>

* microcode/wabbit.c[1.2]:
First working version?

1994-02-09 Chris Hanson <[email protected]>

* microcode/bignum.c[9.41]:
Fix typo in bignum_subtract_unsigned.

1994-02-04 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/hppa.h[1.50]:
Fix parameter name mismatch in use of DEFUN.

1994-02-02 Stephen Adams <[email protected]>

* compiler/fgopt/simapp.scm[4.8]:
Added `Possible' to inapplicable operator warnings.

* compiler/base/utils.scm[4.19]:
Fixed to work with 2-tag fixnums.

* compiler/base/switch.scm[4.24]:
Added comment.

* compiler/back/bitutl.scm[1.9], compiler/back/syerly.scm[1.10],
compiler/base/pmerly.scm[1.8], compiler/base/proced.scm[4.19],
compiler/fgopt/sideff.scm[1.8]:
Fixed #F/() confusion.

1994-02-02 Guillermo J. Rozas <[email protected]>

* compiler/base/make.scm[4.106]:
Re-synchronized RCS version with Scheme version.

* compiler/base/infnew.scm[4.11], compiler/base/make.scm[4.105],
compiler/base/proced.scm[4.18]:
Separate target-block field from initial-callees field in procedure
objects.

The target-block field is useful in the debugging information, to be
able to walk the procedure chain when debugging.

* compiler/machines/C/compiler.sf[1.4],
compiler/machines/alpha/compiler.sf[1.4],
compiler/machines/bobcat/compiler.sf[1.16],
compiler/machines/i386/compiler.sf[1.6],
compiler/machines/mips/compiler.sf-big[1.6],
compiler/machines/mips/compiler.sf-little[1.6],
compiler/machines/spectrum/compiler.sf[1.16],
compiler/machines/vax/compiler.sf[1.7]:
Another instance of "comp" replaced with "compiler"

1994-02-01 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/hppa.h[1.49]:
Fix bug introduced in breakpoint proceeding when the layout of memory
was changed.

The proceed buffer was allocated at the top of constant space which is
now the bottom of the heap, where a perfectly valid object resides.
In fact, it was typically the object being breakpointed itself, being
the object at the top of the stack (the first thing scanned).

1994-01-31 Guillermo J. Rozas <[email protected]>

* runtime/Attic/syntax.scm[14.23]:
Make syntax default its syntax-table argument to the syntax table of
the nearest repl.

* runtime/defstr.scm[14.27]:
define-structure expands into only definitions, so it can be used at
the beginning of a body.

In particular, the print method is now always declared by passing it
along to the type constructor, fixing a problem introduced by the
reordering of the definitions in the last change.

* runtime/record.scm[1.22]:
Modify make-record-type to accept the print-method as an optional
argument.

1994-01-30 Stephen Adams <[email protected]>

* win32/win32.pkg[1.3]:
Reference to ../runtime/runtim -> ../runtime/runtime

1994-01-30 Guillermo J. Rozas <[email protected]>

* microcode/bchdmp.c[9.78], microcode/bchmmg.c[9.86],
microcode/bchpur.c[9.65], microcode/option.c[1.36]:
Fix several problems with gc files:
- Under DOS, the files were not unique for different instances of
bchscheme.
- Missing error messages under Windows (code had not been changed to
use outf).
- TEMP and TMP environment variables were not examined.

1994-01-29 Stephen Adams <[email protected]>

* runtime/hashtb.scm[1.18]:
Changed ucode-type fixnum -> positive-fixnum

* runtime/uenvir.scm[14.33]:
*** empty log message ***

* runtime/uenvir.scm[14.32]:
Changed null-environment to be xor(#F,1) rather than TC_NULL::1.
This is how it is defined in the new microcode and happens to
be correct for the current microcode.

* runtime/lambdx.scm[14.4], runtime/record.scm[1.21]:
Fixed #F/() confusion.

* runtime/equals.scm[14.7]:
Minor efficiency tweak for eqv? on fixnums

* runtime/graphics.scm[1.10]:
Fixed for #F != '()

* runtime/intrpt.scm[14.20]:
Added a comment.

* runtime/lambda.scm[14.11]:
Removed various #F/() confusion.

* runtime/unsyn.scm[14.14]:
Fixed null? -> false?

1994-01-29 Guillermo J. Rozas <[email protected]>

* edwin/dos.scm[1.13]:
WITH-REAL-WORKING-DIRECTORY-PATHNAME must really change the
microcode's working directory pathname.

* microcode/Attic/dosio.h[1.3]:
Replace UXIO with DOSIO.

* sf/gconst.scm[4.19], sf/usiexp.scm[4.32]:
FIRST cannot be integrated as a constant because it is not a primitive.
It must be expanded.

* runtime/infutl.scm[1.55], runtime/uenvir.scm[14.31]:
compiled-entry/dbg-object now returns meaningful info for the internal
entry point.

1994-01-28 Guillermo J. Rozas <[email protected]>

* sf/gconst.scm[4.18]:
Add FIRST to list of constants to be expanded.

* microcode/ntscreen.c[1.20]:
Add handlers for page-up, page-down, and insert keys.

1994-01-25 Chris Hanson <[email protected]>

* compiler/fggen/fggen.scm[4.31]:
When constant-folding multiple definition values vector, must unmap
reference traps so that definition works right.

1994-01-14 Chris Hanson <[email protected]>

* edwin/tagutl.scm[1.54]:
Eliminate random error that occurs when file is missing.

1994-01-14 Guillermo J. Rozas <[email protected]>

* runtime/defstr.scm[14.26]:
Move type-definitions to the end of the definition block.
In this way there is no need for the symbol to be returned,
since the type definition "returns" the symbol, and in addition, all
the forms are definitions, so a DEFINE-STRUCTURE becomes legal
amongst internal definitions.

1994-01-12 Stephen Adams <[email protected]>

* win32/graphics.scm[1.4]:
changed ACCESS forms to use system-global-environment

* runtime/wttree.scm[1.3]:
*** empty log message ***

1994-01-12 Guillermo J. Rozas <[email protected]>

* microcode/bintopsb.c[9.65], microcode/psbtobin.c[9.56]:
Make bintopsb align compiled-code blocks as necessary on the source
machine.

For the C back end, this should be innocuous, since there are no
alignment constraints on code.

For the native back ends, the native code is only meaningful on the
same machine, so the alignment constraints should be the same.

1994-01-10 Chris Hanson <[email protected]>

* edwin/tagutl.scm[1.53]:
Fix bugs that occur after tags-search is finished.

1994-01-10 Guillermo J. Rozas <[email protected]>

* microcode/cmpint.c[1.80.1.2], microcode/cmpint.c[1.83]:
Add cast to eliminate warning.

1994-01-08 Guillermo J. Rozas <[email protected]>

* 6001/6001.pkg[1.9], compiler/machines/C/compiler.sf[1.3],
compiler/machines/alpha/compiler.pkg[1.12],
compiler/machines/alpha/compiler.sf[1.3],
compiler/machines/bobcat/compiler.pkg[1.49],
compiler/machines/bobcat/compiler.sf[1.15],
compiler/machines/i386/compiler.pkg[1.21],
compiler/machines/i386/compiler.sf[1.5],
compiler/machines/mips/compiler.pkg[1.19],
compiler/machines/mips/compiler.sf-big[1.5],
compiler/machines/mips/compiler.sf-little[1.5],
compiler/machines/spectrum/compiler.pkg[1.47],
compiler/machines/spectrum/compiler.sf[1.15],
compiler/machines/vax/compiler.pkg[1.21],
compiler/machines/vax/compiler.sf[1.6]:
Rename runtim.* to runtime.*
Rename comp.* to compiler.*

* compiler/machines/C/compiler.pkg[1.9]:
Forgot to update the copyright.

* compiler/base/make.scm[4.104]:
Rename comp.* to compiler.*

* compiler/machines/C/compiler.pkg[1.8], cref/cref.pkg[1.6],
edwin/edwin.pkg[1.142], runtime/make.scm[14.51],
runtime/runtime.sf[14.9], sf/sf.pkg[4.10]:
Rename runtim.* to runtime.*

* microcode/cmpint.c[1.80.1.1]:
Update beta-release version with bug fixes from version 1.82.

* microcode/fasload.c[9.78.1.1]:
Update beta-release version with bug fixes from version 9.80.

* microcode/fasload.c[9.80]:
Fix cache-flushing bugs manifested on the MIPS R4000:

- PUSH_D_CACHE_REGION was being called at the wrong time.

* microcode/cmpint.c[1.82]:
Fix cache-flushing bugs manifested on the MIPS R4000:

- The linker cannot use PUSH_D_CACHE_REGION on the block being linked
if it is returning to it, it must use FLUSH_I_CACHE_REGION.

* microcode/cmpintmd/mips.h[1.19]:
Fix cache-flushing bugs manifested on the MIPS R4000:

- trampoline entries must be flushed after being written.
- The R4000 has write-back caches, so FLUSH_I_CACHE_REGION and friends
must also flush the D cache.
- PUSH_C_CACHE_REGION != FLUSH_I_CACHE_REGION.

1994-01-06 Guillermo J. Rozas <[email protected]>

* microcode/bintopsb.c[9.64]:
Patch to allow ordinary compiled files to work with allow_cc.
The utilities vector is not relevant for ordinary code, only for bands
or dumped linked objects, which, for now, bintopsb cannot handle.

1993-12-29 Chris Hanson <[email protected]>

* runtime/rep.scm[14.49]:
Check arguments to MAKE-REPL to guarantee that they are valid.
Otherwise, it's all too easy to end up with a REPL that can't be used
at all.

* runtime/Attic/syntab.scm[14.4], runtime/load.scm[14.48],
runtime/rep.scm[14.48]:
Change GUARANTEE-SYNTAX-TABLE to take second argument.

1993-12-28 Chris Hanson <[email protected]>

* runtime/arith.scm[1.27]:
Use FOLD-LEFT instead of REDUCE to do n-ary versions of GCD and LCM --
REDUCE returns a negative number if there is a single negative
argument, which is incorrect.

1993-12-23 Chris Hanson <[email protected]>

* compiler/back/bittop.scm[1.21], compiler/back/bitutl.scm[1.8]:
Reimplement interval arithmetic and assembler relaxation code. New
arithmetic uses geometric model to get more accurate results.
Relaxation has been changed to eliminate assumption that if the low
bound of an interval doesn't fit, then no point within the interval
will fit. This assumption was proven incorrect by an example on the
MIPS.

* runtime/debug.scm[14.38], runtime/error.scm[14.45],
runtime/rep.scm[14.47], runtime/runtime.pkg[14.222]:
When invoking restart in another thread, must call RESTART-THREAD.
Also, look for a special CONTINUE restart in the current thread and
invoke that.

* runtime/thread.scm[1.21]:
Add option to allow RESTART-THREAD to prompt the user regarding
whether events in the thread's queue should be discarded.

1993-12-22 Stephen Adams <[email protected]>

* sf/usiexp.scm[4.31], sf/usiexp.scm[4.30], sf/usiexp.scm[4.28],
sf/usiexp.scm[4.27], sf/usiexp.scm[4.26], sf/usiexp.scm[4.25],
sf/usiexp.scm[4.24], sf/usiexp.scm[4.23]:
*** empty log message ***

* sf/usiexp.scm[4.22]:
Put ucode-type calls in procedures so that the procedures may be redefined
for re-tagging

1993-12-22 Jim Miller <[email protected]>

* runtime/debug.scm[14.37]:
Generalize Z command to allow NOT discarding thread events when
restarting thread.

1993-12-21 Chris Hanson <[email protected]>

* runtime/urtrap.scm[14.4]:
Reference traps must be fasdumpable.

* runtime/uerror.scm[14.38]:
Fix typo.

* edwin/dired.scm[1.141]:
Fix bug in dired-clean-directory -- roles of positive and negative
arguments were reversed.

1993-12-18 Chris Hanson <[email protected]>

* compiler/back/bittop.scm[1.20]:
Branch-tensioner assumptions are also violated in case where padding
not in use, although I don't understand why since this code used to
work. This patch at least allows the compiler to work without errors
in this case.

* compiler/machines/mips/lapgen.scm[1.13]:
Work around new bug in variable-width instruction assembly: LW is
being forced to use its long-offset form when the offset is small (in
this case the offset is -4).

* compiler/back/bittop.scm[1.19]:
Fix bug in previous change.

1993-12-17 Chris Hanson <[email protected]>

* runtime/error.scm[14.44], runtime/error.scm[14.43]:
Fix think-o.

* runtime/error.scm[14.42]:
Restore kludge to allow non-interactive restarts to be invoked
interactively.

* runtime/parse.scm[14.23]:
Fix some typos.

* edwin/comred.scm[1.110], edwin/schmod.scm[1.36],
runtime/advice.scm[14.14], runtime/error.scm[14.41],
runtime/error.scm[14.40], runtime/rep.scm[14.46],
runtime/runtime.pkg[14.221], runtime/uerror.scm[14.37]:
Implement WITH-RESTART to replace BIND-RESTART. WITH-RESTART takes an
additional argument that specifies the interactor -- this is no longer
done by means of a restart property.

1993-12-16 Chris Hanson <[email protected]>

* runtime/error.scm[14.39]:
Bind BREAK-ON-SIGNALS types to '() when invoking the breakpoint.
Otherwise passing a breakpoint type to BREAK-ON-SIGNALS will cause an
infinite loop.

1993-12-15 Stephen Adams <[email protected]>

* runtime/parse.scm[14.22]:
Added more special readers:

#[name number fnord fnord ...]

now reads as (unhash number), making it possible to read in some
output that contains closures etc into the same Scheme process.

#n= and #n#

A tentative implementation of these Common Lisp readers for cyclic
structures (lists and vectors).

1993-12-15 Chris Hanson <[email protected]>

* runtime/conpar.scm[14.32]:
Handle built-in and utility hardware traps.

1993-12-14 Chris Hanson <[email protected]>

* runtime/uerror.scm[14.36]:
Fix a couple of typos.

1993-12-11 Guillermo J. Rozas <[email protected]>

* microcode/bchdmp.c[9.77]:
fasdump_compiled_entry was not aligning compiled-code blocks to
floating-point boundaries as it copied them to the output file.

* microcode/bchmmg.c[9.85]:
Fix several bugs related to varying the size of constant space:
- The gc file should be large enough to accomodate all the heap and
constant space, not only the space indicated by the -heap parameter.

- The size of the gc file should be a multiple of the gc buffer size.
The garbage collector always writes a multiple of this quantity,
even though at the end, only the area in use is read.

1993-12-10 Chris Hanson <[email protected]>

* edwin/schmod.scm[1.35]:
In M-x show-parameter-list, handle case where no debugging information
is available for procedure.

1993-12-09 Guillermo J. Rozas <[email protected]>

* compiler/machines/C/compiler.pkg[1.7],
compiler/machines/alpha/compiler.pkg[1.11],
compiler/machines/bobcat/compiler.pkg[1.48],
compiler/machines/i386/compiler.pkg[1.20],
compiler/machines/mips/compiler.pkg[1.18],
compiler/machines/vax/compiler.pkg[1.20]:
Update to match latest changes to the linearizer.

* compiler/back/bittop.scm[1.18]:
Fix typo in last change.

1993-12-08 Chris Hanson <[email protected]>

* runtime/hashtb.scm[1.17]:
Change procedures that convert hash tables to lists so that they don't
include invalid entries in the result.

1993-12-08 Guillermo J. Rozas <[email protected]>

* compiler/back/bittop.scm[1.17]:
?Fix violation in branch-tensioner assumptions introduced by padding.
It was previously the case that when variable-width directives were
not updated, the minimum width would work for all. This is no longer
true.

* compiler/back/bittop.scm[1.16], compiler/back/bitutl.scm[1.7],
compiler/back/lapgn1.scm[4.16], compiler/back/linear.scm[4.16],
compiler/back/syerly.scm[1.9], compiler/back/syntax.scm[1.26],
compiler/base/asstop.scm[1.10], compiler/base/make.scm[4.103],
compiler/machines/spectrum/compiler.pkg[1.46],
compiler/machines/spectrum/instr2.scm[1.6],
compiler/machines/spectrum/lapgen.scm[4.46],
compiler/machines/spectrum/lapopt.scm[1.14],
compiler/machines/spectrum/rules3.scm[4.41],
compiler/machines/spectrum/rulflo.scm[4.39]:
Several changes:
- Closures are allocated differently: the compiler prepares a pattern,
the linker finalizes it, the garbage collector relocates it, and
the pattern is copied at runtime to make a new closure.
- Tighten up the closure code: eliminate the privilege-bit-clearing
instruction, and share the closure gc stubs between all the closures
in a block.
- Add a code segment facility to the linearizer.
- Add a padding facility to the assembler.
- Compiled code blocks are now aligned to floating-point boundaries
so that they can contain embedded floating-point values and closure
patterns can be copied using floating-point loads and stores.
- Floating-point constants are now embedded in the code area,
requiring fewer operations.

* compiler/back/symtab.scm[1.46]:
Fix "disappearing labels" bug by making the symbol table be strongly
held.

1993-12-08 Jim Miller <[email protected]>

* runtime/option.scm[14.27]:
Added SWAT option

1993-12-07 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dostrap.c[1.6], microcode/bchdmp.c[9.76],
microcode/bchgcc.h[9.57], microcode/bchgcl.c[9.49],
microcode/bchpur.c[9.64], microcode/cmpgc.h[1.27],
microcode/cmpint.c[1.81], microcode/fasdump.c[9.60],
microcode/fasload.c[9.79], microcode/gccode.h[9.53],
microcode/gcloop.c[9.45], microcode/nttrap.c[1.10],
microcode/purify.c[9.54], microcode/purutl.c[9.47],
microcode/uxtrap.c[1.25], microcode/version.h[11.147]:
Some changes to closures:
- Tightening of the entry sequence.
- Closure generation by copying a pattern made by the compiler.
- Add ability to set breakpoints in closures' internal entry points.
- Add CLOSURE_PATTERN_LINKAGE_KIND used by the new patterns.

Align compiled code blocks on floating-point boundaries so that the
compiler can pad to guarantee that embedded floating-point numbers
(and closure patterns, copied using floating-point instructions on the
hppa) are aligned correctly.

* microcode/cmpintmd/hppa.h[1.48]:
Some changes to closures:
- Tightening of the entry sequence.
- Closure generation by copying a pattern made by the compiler.
- Add ability to set breakpoints in closures' internal entry points.

* microcode/cmpauxmd/hppa.m4[1.34]:
*** empty log message ***

1993-12-06 Chris Hanson <[email protected]>

* microcode/flonum.c[9.42], microcode/flonum.c[9.41]:
Eliminate duplicate definition of FLONUM_SIZE.

* runtime/rep.scm[14.45]:
Set up a CONTINUE restart for errors resignalled from other threads.

1993-12-05 Chris Hanson <[email protected]>

* microcode/object.h[9.45]:
Fix typo in last change.

* runtime/runtime.pkg[14.220], runtime/x11graph.scm[1.38]:
Implement support for drawing multiple points and lines.

* microcode/x11graph.c[1.32]:
Add primitives to draw multiple points and lines. These have better
performance characteristics for large plots.

* microcode/dfloat.c[1.5], microcode/object.h[9.44],
microcode/prims.h[9.44]:
Generalize support for flonum vectors.

1993-12-01 Stephen Adams <[email protected]>

* win32/graphics.scm[1.3], win32/module.scm[1.3],
win32/win_ffi.scm[1.3], win32/wt_user.scm[1.3]:
Altered event:after-restarts to allow a band containing the win32
system to be loaded on a DOS-only microcode.

1993-11-29 Chris Hanson <[email protected]>

* runtime/random.scm[14.9]:
Remove definition of INT:->FLONUM since it is now exported from the
arithmetic package.

* runtime/unxprm.scm[1.28]:
Fix think-o in previous change.

* sf/usiexp.scm[4.21]:
Add expansion for INT:->FLONUM.

* runtime/runtime.pkg[14.219]:
Export INT:->FLONUM.

* runtime/unxprm.scm[1.27]:
Change temporary filename so that it has no file type.

* runtime/infutl.scm[1.54]:
Fix problem that caused trouble with debugging information when Scheme
was installed on a different device from that on which it was built.

1993-11-29 Guillermo J. Rozas <[email protected]>

* compiler/machines/C/ctop.scm[1.12]:
Make compile-procedure and compile-scode work.

* compiler/base/toplev.scm[4.52], compiler/base/toplev.scm[4.51],
compiler/base/toplev.scm[4.50]:
Fix minor bug.

* compiler/base/asstop.scm[1.9], compiler/base/toplev.scm[4.49]:
Rename compiled-scode->procedure to compiler-output->procedure
Add compiler-output->compiled-expression and
compile-scode/internal/hook to make compile-procedure and
compile-scode work in the C back end.

1993-11-24 Stephen Adams <[email protected]>

* microcode/ntutl/ntgui.rc[1.7]:
Made release and version automatic from version.h

* microcode/ntutl/ntgui.rc[1.6]:
Fixed version info

1993-11-24 Guillermo J. Rozas <[email protected]>

* microcode/ux.h[1.60]:
SUNOS calls it TIOCSIGNAL, not TIOCSIG!

1993-11-23 Chris Hanson <[email protected]>

* microcode/ux.h[1.59]:
TIOCSIG not available on sun3.

* edwin/process.scm[1.33]:
POLL-PROCESS-FOR-OUTPUT must check the input channel to see if it is
there at all -- SUBPROCESS-DELETE will change the channel to #F.

* microcode/uxproc.c[1.18]:
Conditionalize use of TIOCSCTTY to OSF/1 specifically -- HP-UX has
this but calling it causes trouble.

* microcode/uxproc.c[1.17]:
Make sure that controlling PTY is informed of its process group when a
subprocess is started.

* edwin/process.scm[1.32]:
BSD PTYs signal I/O-error when trying to read from a master side whose
slave has been closed; SYSV PTYs return EOF in same case. Add code to
handle BSD case (this code has a race in it but seems to work OK).

1993-11-23 Guillermo J. Rozas <[email protected]>

* compiler/machines/C/ctop.scm[1.11]:
Add -O to alpha switches.

* microcode/ux.h[1.58]:
Disable ptys in Ultrix.

1993-11-22 Chris Hanson <[email protected]>

* microcode/ux.h[1.57]:
Eliminate useless Ultrix conditionalization.

* microcode/ux.h[1.56]:
Fix conditionalization of HAVE_FTRUNCATE -- it was broken for those
operating systems that were both POSIX and BSD. Also, define
TIOCSIGSEND on several operating systems that support it under a
different, undocumented name: TIOCSIG.

* microcode/uxproc.c[1.16]:
OSF/1 requires the TIOCSCTTY ioctl to be executed in order to
associate a controlling terminal with a session leader.

* microcode/ux.c[1.13]:
Turns out that setpgrp(0,0) is different from setpgrp(pid,pid) -- and
only the former works correctly on some BSD systems.

1993-11-22 Guillermo J. Rozas <[email protected]>

* microcode/pruxdld.c[1.9]:
The 300s prefix symbols with _, have the dynamic loader take care of
this automagically.

* microcode/uxtrap.h[1.24]:
Fix declaration of etext for hp9000s300.

* microcode/x11base.c[1.52]:
Fix bug in x_window_to_xw: it was not checking that the entry in the
x_window_table was valid before extracting the window handle.

* compiler/machines/C/TODO[1.6]:
*** empty log message ***

* microcode/cmpgc.h[1.26]:
Define macros not present when there is no compiled code support.

* microcode/bchdrn.h[1.6]:
HP-UX, OSF, and AIX all have SysV shared memory.

* microcode/bchmmg.c[9.84]:
Fix bug introduced when moving constant space and not using SysV
shared memory:

The gc buffers need to be below Highest_Allocated_Address, since
reset_allocator_parameters uses this boundary to set Heap_Top.

1993-11-21 Chris Hanson <[email protected]>

* runtime/load.scm[14.47]:
In LOAD-PACKED-BINARIES, delay purification of the packed files until
after the loading is complete.

* runtime/infutl.scm[1.53]:
Fix think-o in previous change.

* runtime/apropos.scm[1.2]:
Repaginate. Eliminate compiler warnings.

1993-11-21 Guillermo J. Rozas <[email protected]>

* compiler/machines/C/TODO[1.5]:
Update.

* microcode/s/Attic/sunos4.h[1.7]:
Add missing l in dynamic library name.

* microcode/s/Attic/sunos4.h[1.6]:
Remove spurious #\=

* microcode/s/Attic/decosf.h[1.4]:
Add dynamic loading primitives

* runtime/infutl.scm[1.52]:
Fix last change. It was just wrong.

* runtime/infutl.scm[1.51]:
Add code to handle the load/purification-root of blocks produced by
the C back end.

1993-11-20 Chris Hanson <[email protected]>

* runtime/equals.scm[14.6]:
Rearrange order of predicate testing in EQUAL? to favor more common
types.

* sf/usiexp.scm[4.20]:
Fix think-o in last change.

* runtime/runtime.pkg[14.218]:
Reinstall apropos now that release is finished.

* rcs/mklogs.scm[1.5]:
Update to reflect new directories.

* sf/table.scm[4.3]:
Fix typo in last change.

* runtime/runtime.pkg[14.217]:
Remove apropos from release.

1993-11-19 Chris Hanson <[email protected]>

* microcode/m/Attic/hp9k800.h[1.13]:
Pass the +s option to the loader to enable the use of SHLIB_PATH in
the resulting executable.

* microcode/s/Attic/aix.h[1.2], microcode/s/Attic/hpux.h[1.11],
microcode/s/Attic/sunos4.h[1.5]:
Add definitions to enable the dynamic loading primitives on those
operating systems that support them.

* runtime/emacs.scm[14.20]:
Add object that can be yielded as the result of an evaluation in order
to suppress the ";value" message from the evaluation. This allows the
Emacs interface to transmit commands to Scheme without having those
commands appear in the buffer.

* microcode/unxutl/Attic/ymkfile[1.87]:
Fix cpp problem reported by birkholz.

1993-11-19 Guillermo J. Rozas <[email protected]>

* microcode/termcap.c[1.6]:
Define NULL, not previously defined by any of the include files.

* microcode/tparam.c[1.7]:
Define NO_ARG_ARRAY by default, since arguments are often passed in
registers and modern optimizing compilers will only put the addressed
variable on the stack.

1993-11-18 Stephen Adams <[email protected]>

* microcode/ntutl/bch.ico[1.2], microcode/ntutl/edwin.ico[1.2],
microcode/ntutl/graphics.ico[1.2], microcode/ntutl/liar3.ico[1.2],
microcode/ntutl/shield3.ico[1.2], microcode/ntutl/shield4.ico[1.2]:
Fiddling with appearance

* runtime/runtime.pkg[14.215]:
*** empty log message ***

* runtime/runtime.pkg[14.214]:
Added apropos

1993-11-18 Chris Hanson <[email protected]>

* runtime/infutl.scm[1.50]:
Fix think-o in last change.

* compiler/base/make.scm[4.102], cref/make.scm[1.10],
edwin/make.scm[3.82], sf/make.scm[4.28]:
Delay resolution of debugging-info filename until the file is needed.

* runtime/infutl.scm[1.49], runtime/make.scm[14.50],
runtime/site.scm.dos[1.13], runtime/site.scm.unix[1.14]:
Implement new mechanism to allow the system to specify its
debugging-info files as relative pathnames that are resolved at lookup
time rather than at the time the .com files are loaded.

1993-11-18 Guillermo J. Rozas <[email protected]>

* microcode/regex.c[1.14]:
The AIX C compiler does not sign-extend characters correctly.

* edwin/editor.scm[1.234], edwin/undo.scm[1.57]:
Split calls to add-gc-daemon! into calls to add-gc-daemon!/no-restore
and add-event-receiver! event:after-restore ...

* runtime/gcdemn.scm[14.7], runtime/runtime.pkg[14.216]:
Define add-gc-daemon!/no-restore, required by the C back end.

* microcode/uxio.c[1.33]:
gcc complains about a type mismatch when declaring select on the
RS6000.

1993-11-17 Stephen Adams <[email protected]>

* sf/lsets.scm[4.2], sf/table.scm[4.2]:
Added $Id: line

* 6001/pic-ops.scm[1.4], 6001/pic-reco.scm[1.6],
win32/dibutils/dibutils.def[1.2], win32/ffimacro.scm[1.2]:
Added copyright notice

* win32/dibutils/makefile.msc[1.2]:
Added copyright message

1993-11-17 Chris Hanson <[email protected]>

* edwin/notify.scm[1.13]:
Eliminate race condition that often caused SIGSEGV when notifier was
started up.

1993-11-17 Guillermo J. Rozas <[email protected]>

* compiler/machines/C/rules1.scm[1.7]:
Fix unbound variable problem introduced in the last edit.

* compiler/machines/C/rules1.scm[1.6]:
Patch BYTE-OFFSET-ADDRESS rules to avoid warnings and errors from an
implicit cast.

* compiler/machines/C/ctop.scm[1.10]:
Fix switches on AIX and Alpha.

1993-11-16 Stephen Adams <[email protected]>

* edwin/edwin.pkg[1.141.1.1]:
Update to match Unix version 1.141

1993-11-16 Guillermo J. Rozas <[email protected]>

* compiler/machines/C/ctop.scm[1.9]:
Files must be linked with cc on AIX.

* compiler/machines/C/cout.scm[1.19]:
Fix bug when displaying #\'

* compiler/machines/C/cout.scm[1.18]:
Finish renaming C-quotify.

* microcode/version.h[11.146]:
Changes to cmpint.c, psbtobin.c, and bintopsb.c to allow moving
C-back-end bands to machines with a different word size.

Bump version number.

* microcode/bintopsb.c[9.63], microcode/psbtobin.c[9.55]:
Teach psbtobin and bintopsb how to relocate the compiled code
utilities vector correctly.

* microcode/cmpint.c[1.80]:
Change compiler_initialize and compiler_reset to produce (and restore)
an ordinary compiled code block that includes a manifest vector
header. It costs an extra word, but makes it possible for psbtobin
and bintopsb to relocate the compiled code utilities correctly for the
C back end.

* microcode/cmpintmd/c.h[1.6]:
Add cast to remove spurious warnings.

* microcode/cmpintmd/c.h[1.5]:
Fix MANIFEST_CLOSURE_COUNT and FIRST_MANIFEST_CLOSURE_ENTRY.
The default versions only work when
sizeof (unsigned long) = 2 * sizeof (format_word)

* compiler/machines/C/cout.scm[1.17]:
Fix character quoting -- we can't really use ANSI escapes (e.g. \a).

1993-11-15 Chris Hanson <[email protected]>

* edwin/make.scm[3.81]:
Update version number.

1993-11-15 Guillermo J. Rozas <[email protected]>

* compiler/machines/C/cout.scm[1.16]:
Fix conflict when timestamps have been disabled.

1993-11-13 Chris Hanson <[email protected]>

* compiler/etc/comfiles.scm[1.5]:
Fix typo in previous change.

1993-11-13 Guillermo J. Rozas <[email protected]>

* compiler/base/asstop.scm[1.8], compiler/base/make.scm[4.101],
compiler/machines/C/ctop.scm[1.8]:
Load option compress when the compiler is loaded.

* compiler/machines/C/cout.scm[1.15]:
Add mechanism to disable timestamps to allow comparison of output.

* compiler/machines/C/ctop.scm[1.7]:
Fix bug when switch list is empty.
Disable checking of return status of system. Apparently it does not
quite work in SunOS.

* compiler/machines/C/ctop.scm[1.6]:
Use with-working-directory-pathname to make some C compilers happy.

* compiler/machines/C/lapgen.scm[1.10]:
Fix variable names: the number was previously duplicated.

* compiler/machines/C/rules3.scm[1.8]:
Fix variable name conflict when using dynamic links.

* compiler/machines/C/ctop.scm[1.5]:
Check cc and ld return codes, and delete .o file after producing the shared
object.

* runtime/site.scm.unix[1.13]:
The primitive SET-WORKING-DIRECTORY-PATHNAME! does not like pathname
objects.

* compiler/machines/C/ctop.scm[1.4]:
Make C back end invoke the C compiler and linker on the output by
default.

* microcode/liarc.h[1.12]:
Fix typo.

* compiler/machines/C/compiler.pkg[1.6]:
Export C-back-end-specific switches.

* microcode/liarc.h[1.11], microcode/unxutl/Attic/ymkfile[1.86]:
Change default: liarc.h defines COMPILE_FOR_DYNAMIC_LOADING unless
COMPILE_FOR_STATIC_LINKING is defined alredy, which is now defined by
the makefile.

* runtime/site.scm.unix[1.12]:
Split system out of call/cc.

* compiler/machines/C/make.scm[1.2], edwin/make.scm[3.80]:
Use declare-shared-library to make -compiler and -edwin work in the C
back end.

* runtime/option.scm[14.26], runtime/runtime.pkg[14.213]:
Add declare-shared-library for the C back end.

* runtime/site.scm.unix[1.11]:
Changes to call/cc:
- Add customization switches
- Disable timer interrupts around the call to system,
to prevent interrupt lossage.
- Change the microcode directory to make the command line win.

1993-11-13 Nick Papadakis <[email protected]>

* microcode/s/Attic/irix4.h[1.4]:
Extend the -Olimit on the IRIX compiler.

1993-11-12 Chris Hanson <[email protected]>

* microcode/m/Attic/mips.h[1.9], microcode/s/Attic/ultrix.h[1.15]:
Changes to prevent use of -std on Ultrix.

1993-11-12 Jim Miller <[email protected]>

* compiler/machines/alpha/compiler.pkg[1.10]:
Forgot to add rtl:bump-closure to the export list

* compiler/machines/alpha/make.scm[1.3]:
Alpha now handles "compressed" top-level block as on the Spectrum and i386

* compiler/machines/alpha/rules3.scm[1.6]:
Added code to handle compressed top-level files
(generate/remote-links)

* compiler/machines/alpha/instr1.scm[1.3]:
Bad syntax for UWORD

* compiler/machines/alpha/coerce.scm[1.2]:
Added coerce-32-bit-unsigned to support UWORD (instr1)

* compiler/machines/alpha/rulflo.scm[1.2]:
Added support for floating-point vectors

* compiler/machines/alpha/instr1.scm[1.2]:
Added UWORD in preparation for future use in generate/remote-links
(rules3)

* compiler/machines/alpha/rules1.scm[1.2],
compiler/machines/alpha/rules3.scm[1.5]:
Changed format of OFFSET-ADDRESS, BYTE-OFFSET-ADDRESS, and
FLOAT-OFFSET-ADDRESS to allow indexing by either a REGISTER or a
MACHINE-CONSTANT, whereas it previously assumed MACHINE-CONSTANT only.

* compiler/machines/alpha/make.scm[1.2]:
Prepare for next version, where we'll use compiler:compress-top-level

* compiler/machines/alpha/machin.scm[1.7]:
Changed format of OFFSET-ADDRESS, BYTE-OFFSET-ADDRESS, and
FLOAT-OFFSET-ADDRESS to allow indexing by either a REGISTER or a
MACHINE-CONSTANT, whereas it previously assumed MACHINE-CONSTANT only.

Also, updated list of floating point primitives not in-lined.

1993-11-11 Chris Hanson <[email protected]>

* microcode/psbtobin.c[9.54]:
Fix typo.

* runtime/load.scm[14.46]:
GJR's changes for dynamic loader. Also repaginate and rearrange
order.

* microcode/Attic/posixtyp.h[1.9], microcode/bchutl.c[1.4],
microcode/cmpint.c[1.79], microcode/psbmap.h[9.41]:
Changes for NeXT.

* microcode/unxutl/Attic/ymkfile[1.85]:
Change for Sun3 and NeXT.

* microcode/cmpauxmd/sun3-nfp.s[1.3], microcode/cmpauxmd/sun3.s[1.3]:
Fix think-o in previous update.

1993-11-11 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/hppa.h[1.47]:
Change flush_i_cache_initialize to always check for environment
variables. This allows overriding the name reported by uname under
HP-UX!

Change the environment variable from HPPAmodel to
MITSCHEME_HPPA_MODEL.

* microcode/hppacach.mc[1.2]:
Add 755 cache parameters.

1993-11-10 Stephen Adams <[email protected]>

* win32/wt_user.scm[1.2]:
Fixed integration of make-primitive ro ucode-primitive

* win32/graphics.scm[1.2]:
Fixed image drawing operations to be at transformed coords, not native
coords. Sizes and image coords are still native because we dont want to
have to scale the image (bitmap)

* win32/module.scm[1.2]:
Fixed $Header, fixed module loading to be even more lazy

* win32/wf_user.scm[1.2]:
Added more windows functions

* win32/dib.scm[1.2], win32/make.scm[1.2], win32/protect.scm[1.2],
win32/win32.pkg[1.2], win32/win32.sf[1.2], win32/win_ffi.scm[1.2]:
Fixed $Header

* win32/win32.cbf[1.2]:
Compile now with error checking

* 6001/picture.scm[1.21]:
Fixed bug in positioning of picture within a window that is not of an
exact fitting size.

1993-11-10 Guillermo J. Rozas <[email protected]>

* compiler/documentation/porting.guide[1.26]:
Fix bug in the instructions to generate a cross-compiler band.

* microcode/pruxdld.c[1.8]:
Add dynamic loading for the RS6000

* compiler/machines/mips/machin.scm[1.14]:
Fix bug in interpreter-environment-register?

1993-11-10 Jim Miller <[email protected]>

* compiler/rtlgen/opncod.scm[4.62]:
Rearrange load evaluation order to fix bug in alpha.

1993-11-09 Stephen Adams <[email protected]>

* 6001/picture.scm[1.20]:
Mergesd Win32 and X11 versions.

* 6001/6001.pkg[1.8]:
Make file names 8.3

* 6001/6001.sf[1.8]:
Made file names 8.3

* 6001/pic-imag.scm[1.5]:
*** empty log message ***

* 6001/pic-reco.scm[1.5], 6001/picture.scm[1.19]:
Fixed to correspond to new Image abstraction

1993-11-09 Chris Hanson <[email protected]>

* runtime/dosprm.scm[1.21], runtime/infutl.scm[1.48],
runtime/sfile.scm[14.10], runtime/unxprm.scm[1.26],
runtime/version.scm[14.166]:
These changes require microcode version 11.145 or later.

Reimplement handling of temporary files to update list in fixed
objects vector; this list tells the microcode that the files should be
deleted when Scheme is killed.

Additionally, change the handling of ".bci" file expansion to use the
new temporary file mechanism. The expander now accepts a third value
for *SAVE-UNCOMPRESSED-FILES?* which says to expand the file into a
temporary file that is deleted (by the GC) after it has not been used
in a while, or when Scheme is killed. This new option is now the
default, and the timeout for these temporary files defaults to five
minutes.

1993-11-09 Guillermo J. Rozas <[email protected]>

* microcode/uxtop.c[1.12]:
Fix problem in AIX: ENOTEMPTY = EEXIST.

* microcode/bchmmg.c[9.83]:
Fix declaration of select for sparcs.

* microcode/bintopsb.c[9.62]:
Fix initialization problem when loading with the C code table.

* microcode/unxutl/Attic/cf-dist.h[1.19],
microcode/unxutl/Attic/config[1.28]:
Add -no-back-end option.

* microcode/dosutl/Attic/bch-prm.lst[1.6],
microcode/dosutl/Attic/bch-ztc.lst[1.7],
microcode/dosutl/Attic/scm-prm.lst[1.6],
microcode/dosutl/Attic/scm-ztc.lst[1.7],
microcode/ntutl/bch-cl3.lst[1.6], microcode/ntutl/bch-p-nt.lst[1.5],
microcode/ntutl/scm-cl3.lst[1.6], microcode/ntutl/scm-p-nt.lst[1.5]:
Add avltree.

* microcode/bchdmp.c[9.75], microcode/bchgcc.h[9.56],
microcode/bintopsb.c[9.61], microcode/cmpgc.h[1.25],
microcode/fasdump.c[9.59], microcode/fasload.c[9.78],
microcode/gcloop.c[9.44], microcode/load.c[9.36],
microcode/psbtobin.c[9.53], microcode/purify.c[9.53]:
Make the C-back end work without HEAP_IN_LOW_MEMORY.

* microcode/liarc.h[1.10]:
define CLOSURE_ENTRY_DELTA, used to make the same .c source work with
HEAP_IN_LOW_MEMORY and without it.

* compiler/machines/C/cout.scm[1.14],
compiler/machines/C/cout.scm[1.13]:
Fix ordering and pagination.

* compiler/machines/C/cout.scm[1.12],
compiler/machines/C/cout.scm[1.11]:
Fix data labels when timestamped.

* sf/butils.scm[4.8]:
Conditionalize output file extension for compiler (C back end produces
.c files).

* compiler/base/asstop.scm[1.7], compiler/base/toplev.scm[4.48],
compiler/machines/C/ctop.scm[1.3]:
Conditionalize output file extension.

* compiler/machines/C/cout.scm[1.10]:
Make non-top-level blocks have a time-stamp.

* compiler/machines/C/machin.scm[1.7]:
Fix closure-entry-distance when not HEAP_IN_LOW_MEMORY.

1993-11-08 Chris Hanson <[email protected]>

* microcode/term.c[1.10], microcode/version.h[11.145]:
Implement mechanism to delete temporary files when Scheme exits.
Reimplement Edwin auto-save mechanism to use new error-catching.

* microcode/interp.c[9.81], microcode/interp.h[9.39]:
Implement new mechanism to catch `abort_to_interpreter' throws from
primitives.

* microcode/boot.c[9.87], microcode/fixobj.h[9.36],
microcode/utabmd.scm[9.72]:
Add new slot to fixed objects vector, which contains a list of files
to be deleted when the microcode exits.

1993-11-08 Guillermo J. Rozas <[email protected]>

* compiler/machines/C/machin.scm[1.6]:
Fix bug in guaranteed-long/upper-limit and lower-limit.

* microcode/ux.h[1.55]:
Add SYTEM_VARIANT for AIX.

* microcode/liarc.h[1.9]:
Add dstack.h to included files. Needed by new interpreter abort
mechanism.

* microcode/fasload.c[9.77]:
Use extra fasl field for systems without HEAP_IN_LOW_MEMORY to
correctly relocate raw pointers.

* microcode/dump.c[9.39], microcode/fasl.h[9.35],
microcode/load.c[9.35]:
Add extra fasl field for systems without HEAP_IN_LOW_MEMORY.

* microcode/Attic/config.h[9.83], microcode/Attic/oscond.h[1.15],
microcode/unxutl/Attic/config[1.27], microcode/ux.h[1.54],
microcode/uxterm.c[1.23], microcode/uxtrap.h[1.23],
microcode/wsize.c[9.33]:
Add RS6000 support.

* microcode/m/Attic/rs6000.h[1.2]:
Replace $Header$ with $Id$

1993-11-07 Guillermo J. Rozas <[email protected]>

* microcode/psbtobin.c[9.52]:
Allow NMVs in bands: interpreted stack frames contain them.

* microcode/bintopsb.c[9.60]:
Eliminate some warnings from the HP C compiler on hp9k300s.

* microcode/bintopsb.c[9.59]:
Shadow some macros when not using the C back end.
This avoids potential missing externs.

* microcode/bintopsb.c[9.58], microcode/psbmap.h[9.40],
microcode/psbtobin.c[9.51]:
Teach bintopsb and bintopsb to deal with
- constant and pure space
- C back-end output
- bands

1993-11-06 Chris Hanson <[email protected]>

* runtime/sfile.scm[14.9]:
Add new procedure DELETE-FILE-NO-ERRORS.

* microcode/pruxenv.c[1.15]:
Implement CURRENT-PID primitive for unix.

1993-11-05 Guillermo J. Rozas <[email protected]>

* microcode/fasload.c[9.76]:
Fix innocuous logical off-by-one error.

* microcode/cmpauxmd/c.c[1.11]:
Two significant changes:

- Add consistency checking and table-restructuring at disk-restore to
allow use of bands built by a differently-organized microcode.
The consistency check only checks that each compiled code block
has the same number of entries (and name).

- Use the AVL tree code used in the primitive tables to speed lookup.

* microcode/dosutl/Attic/makefile[1.10],
microcode/ntutl/makefile[1.14], microcode/primutl.c[9.69],
microcode/unxutl/Attic/ymkfile[1.84]:
Separate AVL tree code from primutl.c and make it into a separate
utilities file (avltree.[ch]) for use by other parts, in particular
the C back end code block management.

1993-11-04 Chris Hanson <[email protected]>

* runtime/usrint.scm[1.10]:
Rewrite manipulation of terminal modes because on BSD the input and
output modes interact with one another.

* runtime/graphics.scm[1.9]:
Fix bug in previous change.

1993-11-04 Guillermo J. Rozas <[email protected]>

* microcode/cmpint.c[1.78]:
Initialize Regs[REGBLOCK_PRIMITIVE] so that the C back end can abort
correctly out of disk-restore.

* microcode/fasload.c[9.75]:
Call install_c_code_table only when restoring a band.

* microcode/cmpint.c[1.77], microcode/dump.c[9.38],
microcode/load.c[9.34]:
Fix braino.

* microcode/bchdmp.c[9.74], microcode/cmpint.c[1.76],
microcode/dump.c[9.37], microcode/fasdump.c[9.58],
microcode/fasl.h[9.34], microcode/fasload.c[9.74],
microcode/load.c[9.33]:
Add hooks for the C back end to dump a description of the C code
blocks that a band depends on, and to verify compatibility after a
disk-restore.

* microcode/pruxdld.c[1.7]:
Fix a cast.

* microcode/bkpt.h[9.31]:
Update copyright date.

1993-11-03 Stephen Adams <[email protected]>

* runtime/wttree.scm[1.2]:
fixed delete-min!

* runtime/runtime.pkg[14.212]:
fixed wt-tree/delete-min!

1993-11-03 Chris Hanson <[email protected]>

* microcode/cmpauxmd/sun3-gcc.s[1.2],
microcode/cmpauxmd/sun3-nfp.s[1.2], microcode/cmpauxmd/sun3.s[1.2]:
Update to match current "mc68k.m4".

* microcode/unxutl/Attic/config[1.26]:
Update entry for `next'.

1993-11-03 Guillermo J. Rozas <[email protected]>

* microcode/unxutl/Attic/config[1.25]:
Add syntax error.

* microcode/unxutl/Attic/config[1.24]:
Add call to usage in default in discriminate.

1993-11-03 Jim Miller <[email protected]>

* microcode/storage.c[9.55]:
Fixes to allow ENABLE_DEBUGGING_FLAGS to work

* microcode/interp.c[9.80]:
Turned off Eval_Debug code permanently, since Print_Expressions isn't
really available here.

* microcode/bkpt.c[9.29], microcode/bkpt.h[9.30],
microcode/debug.c[9.46]:
Reversed the conditionalization so that we can support
ENABLE_DEUBGGING_FLAGS again.

1993-11-02 Stephen Adams <[email protected]>

* runtime/option.scm[14.25]:
Added wt-tree option

* runtime/runtime.pkg[14.211]:
added weight-balanced trees package

1993-11-02 Chris Hanson <[email protected]>

* 6001/edextra.scm[1.19]:
Implement code to query user about overwriting files in M-x
load-problem-set.

* runtime/rep.scm[14.44]:
ERROR-DECISION can't be done inside the REPL message, because that
message is protected by IGNORE-ERRORS. If another error occurs during
the decision, it must start a nested REPL.

* edwin/intmod.scm[1.77]:
Guarantee that ERROR-DECISION aborts the REPL in all cases.

* 6001/floppy.scm[1.15]:
Call SAVE-SOME-BUFFERS as part of CHECKPOINT-FLOPPY.

1993-11-02 Jim Miller <[email protected]>

* microcode/pruxdld.c[1.6]:
Changed "unsigned long" to "long" to avoid spurious range errors
signalled by arg_integer.

1993-11-01 Chris Hanson <[email protected]>

* runtime/x11graph.scm[1.37]:
Patch to allow a "Configure" event to mark the window as "mapped".
Yukk. Whether or not the "mapped" event shows up depends on the
geometry string!

* runtime/x11graph.scm[1.36]:
New code to generate display object in X-GRAPHICS/OPEN.

1993-11-01 Guillermo J. Rozas <[email protected]>

* microcode/cmpint.c[1.75]:
Add builtin_index_to_name, missing when there is no compiler support.

* microcode/pruxdld.c[1.5]:
Fix cast and typo.

* microcode/pruxdld.c[1.4]:
Make INVOKE-C-THUNK return a value.
Add ADDRESS-TO-STRING.

* compiler/machines/C/cout.scm[1.9], microcode/liarc.h[1.8]:
dynamic initialization need not know the block name.

* microcode/cmpauxmd/c.c[1.10]:
Fix a problem when disk-restoring. The blocks data structure was not
being reinitialized correctly.

Add a performance counter.

1993-10-31 Guillermo J. Rozas <[email protected]>

* microcode/unxutl/Attic/ymkfile[1.83]:
Add dependencies for cmpauxmd.o

* compiler/machines/C/cout.scm[1.8]:
Add newlines after every argument to RCONSM to make lines shorter.

* microcode/fasload.c[9.73]:
Fix problem with disk-restore complaining about lack of space when
restoring the same band it is running!

* compiler/machines/C/rules3.scm[1.7]:
Remove some spurious macros.

* compiler/machines/C/cout.scm[1.7]:
- Canonicalize procedure names as well as labels, including the
directory component.

- Add a limit to the level of nesting of procedure calls used to
generate constants.

1993-10-30 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/c.c[1.9]:
Fix braino: Multiplying compiled_entries_size by a constant (or
initializing to a constant) does not guarantee that the table is large
enough for the current batch of entries.

* microcode/cmpauxmd/c.c[1.8]:
Fix off-by-one error.

* compiler/machines/C/lapgen.scm[1.9]:
Replace use of Rfp with Rhp.

* compiler/machines/C/TODO[1.4], compiler/machines/C/cout.scm[1.6],
compiler/machines/C/ctop.scm[1.2],
compiler/machines/C/lapgen.scm[1.8],
compiler/machines/C/rules1.scm[1.5],
compiler/machines/C/rules3.scm[1.6]:
Redo some things:
- User Marc Feeley's hack for making the default case in the switch
statements handle all cross-block jumps.
- Divide the data and code sections so the data sections can be
eliminated from the link avoiding the need to recompile the code
sections.

* microcode/cmpint.c[1.74], microcode/compinit.c[1.3],
microcode/comutl.c[1.29], microcode/liarc.h[1.7],
microcode/unxutl/Attic/ymkfile[1.82]:
Two major changes to the C back end:
- Redo the way that descriptors are done to improve speed.
The default clause in each switch statement is now the only way to
get out of a block.
All JUMPs merely jump back to the dispatch point.

- Divide initialization code into code and data, to allow splitting
of the sources into two components.

* microcode/cmpauxmd/c.c[1.7], microcode/cmpintmd/c.h[1.4]:
Two major changes:
- Redo the way that descriptors are done to improve speed.
The default clause in each switch statement is now the only way to
get out of a block.
All JUMPs merely jump back to the dispatch point.

- Divide initialization code into code and data, to allow splitting
of the sources into two components.

1993-10-28 Chris Hanson <[email protected]>

* edwin/evlcom.scm[1.49]:
Patch TRANSCRIPT-WRITE to work even if the transcript buffer is
read-only.

1993-10-28 Guillermo J. Rozas <[email protected]>

* compiler/machines/C/rules1.scm[1.4]:
Remove remaining reference to ulong.

* compiler/machines/C/rules3.scm[1.5]:
Add missing special invocations.

* compiler/machines/C/lapgen.scm[1.7],
compiler/machines/spectrum/lapgen.scm[4.45]:
Update the code table.

* compiler/machines/C/rulrew.scm[1.3]:
Add a floating-vector rewrite rule.

* compiler/machines/C/rulflo.scm[1.4]:
Fix floating-vector rules.

* compiler/machines/C/lapgen.scm[1.6], microcode/liarc.h[1.6]:
Redo "word" registers. Rather than having specific C variables, and
casting up the wazoo, there is now a union type for pointers and word
values, and components are selected as needed.

* compiler/machines/C/rulfix.scm[1.2]:
Reformat some code to fit in 80 columns.

* compiler/machines/C/rules3.scm[1.4]:
Remove fossil.

* compiler/machines/C/rules1.scm[1.3]:
Fix mangled character constant.
Replace incorrect use of LONG with ULONG.

* compiler/machines/C/machin.scm[1.5],
compiler/machines/C/rgspcm.scm[1.2]:
Enable open-coding of certain primitives.

* microcode/pruxdld.c[1.3]:
Add dropped *.

1993-10-27 Chris Hanson <[email protected]>

* edwin/editor.scm[1.233], edwin/intmod.scm[1.76],
edwin/notify.scm[1.12]:
Implement mechanism to deregister inferior threads, and call it from
the appropriate places. If this isn't done it's too easy to hold on
to a pointer to the thread, which prevents the thread from being
reclaimed by the GC.

* edwin/intmod.scm[1.75]:
Fix bug: inferior REPL thread was never being killed.

* edwin/evlcom.scm[1.48]:
Change PROMPT-FOR-EXPRESSION so that variable-name completion in the
typein buffer uses the environment of the buffer that was current when
PROMPT-FOR-EXPRESSION was called.

* edwin/prompt.scm[1.161]:
Generalize PROMPT-FOR-STRING to allow an initialization procedure to
be used in place of the mode.

* edwin/bufwiu.scm[1.26]:
Fix bug: when buffer visible in two or more windows, buffer change
that affected the modeline didn't update the modeline unless the
change was visible in the window.

1993-10-27 Guillermo J. Rozas <[email protected]>

* microcode/bignmint.h[1.4], microcode/prim.c[9.37]:
Remove uses of UL. Non-ANSI compilers (e.g. SunOS) can't handle it.

* microcode/dstack.h[1.8]:
Remove SunOS conflicts when using Sun's cc.

* microcode/cmpauxmd/c.c[1.6]:
Fix broken declarations.

* microcode/cmpauxmd/c.c[1.5]:
Fix signed problems on Alpha.

* microcode/ux.c[1.12], microcode/ux.h[1.53], microcode/uxio.c[1.32],
microcode/uxsock.c[1.13]:
Conditionalize for SunOS 4.1.?

* microcode/primutl.c[9.68]:
Include os.h so that things like size_t are defined.

* microcode/obstack.h[1.9]:
SunOS 4.1.? declares abort to return int.

* microcode/dstack.h[1.7]:
SunOS 4.1.? declares abort to return void.

* microcode/pruxdld.c[1.2]:
Make it work under SunOS (and perhaps Alpha OSF).

* compiler/machines/C/rules3.scm[1.3]:
Use CONST instead of const, since the C compiler may not be ANSI
compliant.

* microcode/unxutl/Attic/ymkfile[1.81]:
Fix capitalization bug.

* microcode/Attic/config.h[9.82]:
Disable Alpha shadowing of malloc when using the C back end.

* microcode/liarc.h[1.5]:
Remove unnecessary definition.

* microcode/unxutl/Attic/ymkfile[1.80]:
Fix bug in sed pattern.

1993-10-26 Chris Hanson <[email protected]>

* edwin/dired.scm[1.140]:
Fix typo in last change.

* runtime/graphics.scm[1.8]:
Fix stupid think-o.

* edwin/dired.scm[1.139], edwin/dos.scm[1.12], edwin/unix.scm[1.39]:
Implement M-x dired-clean-directory.

* runtime/numpar.scm[14.8], runtime/runtime.pkg[14.210]:
Implement SUBSTRING->NUMBER.

* edwin/debug.scm[1.26]:
Eliminate unused variable.

* edwin/tagutl.scm[1.52]:
Don't automatically delete a tags-search buffer unless that buffer
truly hasn't been modified. Previously, this was detected by checking
the MODIFIED? flag of the buffer, but that is cleared if the file is
written out. Now, it checks to see if any modifications have occurred
since the file was read in.

* edwin/dired.scm[1.138]:
Disallow renaming or copying a file to an existing file.

* edwin/debug.scm[1.25], edwin/edwin.pkg[1.141]:
* Killing debugger buffer no longer deletes the buffer's screen; that
happens only when M-x browser-quit is invoked, and the screen was
created for the debugger.

* Selection of a screen for a debugger buffer is now simpler. If
desired, a new screen is created (previously this was not an option
if there was already more than one screen). Otherwise, the current
screen is used. No other existing screen will ever be used.

* The X-windows-specific screen geometry stuff has been
conditionalized so that it will not be used unless running under X.

* edwin/intmod.scm[1.74]:
Change debugger invocation to call the command M-x browse-continuation.

* edwin/comred.scm[1.109]:
Can't extract restart from condition, it's often not the right
restart.

* edwin/debug.scm[1.24]:
Fix crufty problem with highlighting -- indentation was highlighted
instead of text!

* edwin/artdebug.scm[1.24], edwin/comred.scm[1.108],
edwin/debug.scm[1.23], edwin/editor.scm[1.232],
edwin/evlcom.scm[1.47]:
Change RETURN-TO-COMMAND-LOOP to accept a condition as its sole
argument. The restart that it invokes is extracted from the
condition, not from the current restarts, and if it is an
ABORT-CURRENT-COMMAND condition, its input is processed.

* edwin/debug.scm[1.22]:
Earlier change I made was lost by careless edit -- put it back in.

1993-10-26 Guillermo J. Rozas <[email protected]>

* microcode/unxutl/Attic/config[1.23]:
Add -f flag to call to remove.

* microcode/unxutl/Attic/config[1.22]:
Automate the edit of cf.h for the C back end.

* microcode/unxutl/Attic/cf-dist.h[1.18]:
Fix bug introduced in the last edit, and automate the C back end edit.

* compiler/machines/C/rulflo.scm[1.3]:
Upcase types for consistency.

* compiler/machines/C/compiler.pkg[1.5],
compiler/rtlgen/opncod.scm[4.61]:
Change needed to resurrect the C back end.

* compiler/machines/C/rules3.scm[1.2]:
Fix casting problem in move-frame-up.

* microcode/liarc.h[1.4]:
Add ifdefs for COMPILE_FOR_DYNAMIC_LOADING

* microcode/unxutl/Attic/cf-dist.h[1.17]:
Add comment to show how to override the back end.

* microcode/unxutl/Attic/config[1.21]:
Add options -C-back-end and -native-back-end.

* compiler/machines/C/machin.scm[1.4]:
Fix interpreter-environment-register? which had not been updated to
use the new rtl format.

* microcode/cmpint.c[1.73], microcode/comutl.c[1.28]:
Rename declare_compiled_code to declare_compiled_code_block.
The name declare_compiled_code was already in use by the C back end.

1993-10-26 Jason Wilson <[email protected]>

* microcode/Attic/dosconio.c[1.12], microcode/boot.c[9.86],
microcode/cmpauxmd/c.c[1.4], microcode/intercom.c[9.30],
microcode/liarc.h[1.3], microcode/ntsig.c[1.15],
microcode/primutl.c[9.67]:
These changes were to bring the C backend back to life.

* compiler/machines/C/cout.scm[1.5],
compiler/machines/C/lapgen.scm[1.5],
compiler/machines/C/rules1.scm[1.2],
compiler/machines/C/rulflo.scm[1.2]:
These changes were to bring the C backend back to life. The major
changes that were made was adding direct calls for floating point
operations as well as using the new rules for floating point vectors
(change in RTL syntax).

1993-10-25 Chris Hanson <[email protected]>

* edwin/editor.scm[1.231]:
Bind notification-output-port to a null port that does not signal
errors.

* runtime/graphics.scm[1.7]:
Reformatting to fit on page.

* 6001/edextra.scm[1.18]:
Suppress loading messages -- these formerly were harmless because the
CMDL port soaked them up, now they signal errors.

1993-10-21 Chris Hanson <[email protected]>

* runtime/unpars.scm[14.33]:
Fix typos.

* runtime/defstr.scm[14.25], runtime/emacs.scm[14.19],
runtime/error.scm[14.38], runtime/fileio.scm[1.7],
runtime/genio.scm[1.3], runtime/packag.scm[14.18],
runtime/pathnm.scm[14.27], runtime/poplat.scm[14.3],
runtime/port.scm[1.7], runtime/prop1d.scm[14.5],
runtime/strnin.scm[14.4], runtime/strott.scm[14.4],
runtime/strout.scm[14.8], runtime/ttyio.scm[1.4],
runtime/urtrap.scm[14.3], runtime/x11graph.scm[1.35]:
* New port operation WRITE-SELF is like PRINT-SELF except that it uses
STANDARD-UNPARSER-METHOD rather than UNPARSER/STANDARD-METHOD.

* Rewrite instances of PRINT-SELF using WRITE-SELF. Rewrite instances
of UNPARSER/STANDARD-METHOD using STANDARD-UNPARSER-METHOD.

* runtime/boot.scm[14.10], runtime/output.scm[14.16],
runtime/runtime.pkg[14.209], runtime/unpars.scm[14.32]:
* Implement new procedure STANDARD-UNPARSER-METHOD. This has a
less-idiosyncratic interface than UNPARSER/STANDARD-METHOD. Uses of
the latter should be replaced with the former.

* Implement new procedure WITH-CURRENT-UNPARSER-STATE which calls its
second argument with the port from its first. The other components
of the state are fluid-bound so that they become the defaults for
calls to WRITE and DISPLAY.

* GUARANTEE-UNPARSER-STATE and GUARANTEE-UNPARSER-TABLE now take an
addition argument, the name of the procedure testing its argument.

* runtime/error.scm[14.37], runtime/port.scm[1.6],
runtime/rep.scm[14.43], runtime/rep.scm[14.42],
runtime/runtime.pkg[14.208]:
Remove ERROR-OUTPUT-PORT.

* runtime/advice.scm[14.13], runtime/error.scm[14.36],
runtime/fileio.scm[1.6], runtime/gcnote.scm[14.10],
runtime/global.scm[14.46], runtime/input.scm[14.16],
runtime/load.scm[14.45], runtime/output.scm[14.15],
runtime/packag.scm[14.17], runtime/port.scm[1.5],
runtime/rep.scm[14.41], runtime/rep.scm[14.40],
runtime/runtime.pkg[14.207], runtime/uerror.scm[14.35],
runtime/usrint.scm[1.9], runtime/version.scm[14.165]:
* Define new standard ports to replace nearly all instances of
NEAREST-CMDL/PORT. When a CMDL starts, it binds all of these ports
to the CMDL port; but they can each be rebound separately without
affecting the CMDL port.

(ERROR-OUTPUT-PORT) errors and warnings
(NOTIFICATION-OUTPUT-PORT) load messages, etc.
(TRACE-OUTPUT-PORT) output from TRACE
(INTERACTION-I/O-PORT) prompting

* Implement IGNORE-ERRORS procedure. Change WRITE-CONDITION-REPORT so
that it ignores errors that occur while writing the report, but only
if the condition being reported is an error condition.

* Implement GUARANTEE-I/O-PORT.

* edwin/evlcom.scm[1.46]:
Change the evaluation commands to bind the default input port to a
dummy port that signals an error if it is read from.

* edwin/editor.scm[1.230]:
Instantiate the editor CMDL with a dummy I/O port that signals an
error if it is read from or written to. Define the CHILD-PORT
operation on that CMDL so that spawning a another CMDL under the
editor CMDL (e.g. by DEBUG-INTERNAL-ERRORS? being true) will cause the
child to use the port that was in effect when the editor was started.

* edwin/intmod.scm[1.73]:
Since REPL/START now binds the current input and output ports, there's
no reason for them to be bound a second time here.

* runtime/rep.scm[14.39], runtime/runtime.pkg[14.206]:
Change MAKE-CMDL to allow the I/O port to be specified as #F, which
means to inherit from the parent. Change PUSH-CMDL to use this
specification. The parent can override this by defining a CHILD-PORT
operation.

Also change CMDL/START to bind the current input and output ports.

1993-10-20 Chris Hanson <[email protected]>

* runtime/hashtb.scm[1.16], runtime/hashtb.scm[1.15]:
Grumble; fix stupid thinko from last change.

* runtime/rep.scm[14.38]:
Allow parent CMDL to override the port used for spawning children.

1993-10-20 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/mc68k.m4[1.25]:
Replace Constant_Top with Stack_Bottom in out-of-line code for
set-interrupt-enables.

1993-10-19 Chris Hanson <[email protected]>

* runtime/hashtb.scm[1.14], runtime/hashtb.scm[1.13],
runtime/runtime.pkg[14.205]:
Generalize interface to hash tables so that users can construct
efficient address-based hashing procedures.

1993-10-18 Chris Hanson <[email protected]>

* edwin/comman.scm[1.77]:
Don't invoke variable assignment daemons if the editor is not running.

* edwin/intmod.scm[1.72], runtime/emacs.scm[14.18]:
Don't do STRING-TRIM on PROMPT-FOR-COMMAND- strings.

1993-10-17 Chris Hanson <[email protected]>

* microcode/cmpauxmd/mips.m4[1.11]:
Change Constant_Top to Stack_Bottom in set_interrupt_enables. This
was necessitated by recent changes to the microcode.

1993-10-16 Chris Hanson <[email protected]>

* edwin/image.scm[1.131]:
Fix fencepost bug.

* edwin/intmod.scm[1.71]:
Fix typo in last change.

* edwin/unix.scm[1.38]:
Generate minibuffer message while automatically decompressing files.

* edwin/intmod.scm[1.70], runtime/dbgcmd.scm[14.14],
runtime/emacs.scm[14.17], runtime/rep.scm[14.37],
runtime/usrint.scm[1.8]:
Change PROMPT-FOR-COMMAND-xxx port operations to take an additional
argument, which is a level number; (NEAREST-CMDL/LEVEL) is passed for
this argument.

* edwin/artdebug.scm[1.23], edwin/debug.scm[1.21]:
Fix old typo.

* edwin/intmod.scm[1.69], edwin/prompt.scm[1.160]:
Prompting commands now do standard modifications to prompt strings
BEFORE passing them to custom operations; operations must compensate.

* runtime/emacs.scm[14.16], runtime/usrint.scm[1.7]:
Change prompting commands to do standard modifications to prompt
strings BEFORE passing them to custom operations.

* runtime/usrint.scm[1.6]:
Restrict result of PROMPT-FOR-COMMAND-CHAR to be a graphic character.

* edwin/intmod.scm[1.68]:
Perform prompting differently: always use the current CMDL level as
the level in the modeline, and recognize DEBUG and WHERE prompts as
needing suppression.

* runtime/emacs.scm[14.15]:
Perform prompting differently: always send the current CMDL level as
part of the prompt, and allow a new form of prompt that prints stuff
in the Scheme buffer.

* edwin/intmod.scm[1.67]:
Fix typo.

1993-10-15 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.66]:
Clarify handling of run lights for inferior-REPL buffers. There is
now a "global" REPL buffer that is responsible for driving the
"global" run light. Run lights of individual REPL buffers are handled
separately.

* edwin/edwin.pkg[1.140], edwin/evlcom.scm[1.45],
edwin/intmod.scm[1.65]:
When evaluate-in-inferior-repl is true, distinguish between
evaluations done in inferior REPL buffers and evaluations done in
other buffers (and the minibuffer); change the latter so that the
value of the evaluation is printed in the minibuffer, just as it would
have been if evaluate-in-inferior-repl were false. Furthermore, if
there is no inferior REPL, M-x eval-expression now works anyway.

* runtime/advice.scm[14.12], runtime/emacs.scm[14.14],
runtime/error.scm[14.35], runtime/load.scm[14.44],
runtime/rep.scm[14.36], runtime/runtime.pkg[14.204],
runtime/usrint.scm[1.5]:
* Breakpoints have been reimplemented to use the condition system. A
breakpoint is now a condition, and the continuation of that
condition is the continuation of the breakpoint. (The debugger
will not show the internal frames of the breakpoint any more.)

* The procedure BREAKPOINT now takes a condition as an additional
optional argument.

* The environment of a breakpoint may be specified as the symbol
CONTINUATION-ENVIRONMENT, in which case the breakpoint signaller
will attempt to extract an environment from the continuation. If
that fails, it uses the REPL environment, and prints a message
informing the user that it was unable to find an appropriate
environment for the breakpoint.

* CMDL/START has been modified to detect the situation where the
thread starting the CMDL is not the owner of its port. Previously
this check was done only for errors. As a result of this change,
CONDITION-TYPE:DERIVED-THREAD-ERROR has been generalized to accept
any kind of condition, not just error conditions.

* The WRITE-RESULT output-port operation has been redefined to accept
an additional argument: the expression that was evaluated to produce
the value being printed. This expression is useful if the
CURRENT-EXPRESSION-CONTEXT operation is implemented; it is the key
needed to get the context information. As a result of this change,
HOOK/REPL-WRITE was redefined to accept the same additional
argument.

* A new procedure CURRENT-LOAD-PATHNAME has been defined. When a file
is being loaded, this procedure returns that file's pathname. At
other times, it signals an error of type CONDITION-TYPE:NOT-LOADING.
LOAD/PUSH-HOOK! has been changed to signal this error in the same
situation, rather than the anonymous error it signalled before.

* runtime/debug.scm[14.36]:
Handle eval-boundary frame when it is the first subproblem in the
continuation being debugged.

* edwin/evlcom.scm[1.44], edwin/filcom.scm[1.178]:
Change special treatment of evaluate-in-inferior-repl and run-light
editor variables. These variables are now given buffer-local values
to disable the use of an inferior repl when either scheme-environment
or scheme-syntax-table is given a local binding that overrides the
default. Also, these automatic bindings are only performed if the
variables do not already have buffer-local bindings.

* edwin/comman.scm[1.76]:
* Editor variables can now define a procedure that will "normalize"
their values. The DEFINE-VARIABLE has been extended to allow the
specification of this normalization procedure to follow the
specification of a validity test.

* New procedure VARIABLE-LOCAL-VALUE? is true iff the given variable
is locally bound in the given buffer.

* Procedure VARIABLE-VALUE-VALID? has been eliminated.

1993-10-15 Guillermo J. Rozas <[email protected]>

* edwin/edwin.pkg[1.140.1.1]:
Update to match Unix version 1.140.

* microcode/default.h[9.42]:
Fix broken #endif.

1993-10-14 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.164], edwin/comman.scm[1.75],
edwin/hlpcom.scm[1.107], edwin/macros.scm[1.61]:
* Editor variables can now define a procedure that will "normalize"
their values. The DEFINE-VARIABLE has been extended to allow the
specification of this normalization procedure to follow the
specification of a validity test.

* New procedure VARIABLE-LOCAL-VALUE? is true iff the given variable
is locally bound in the given buffer.

* Procedure VARIABLE-VALUE-VALID? has been eliminated.

* edwin/sercom.scm[1.63]:
Eliminate random local variable bindings at file's end.

* runtime/random.scm[14.8], runtime/random.scm[14.7]:
Allow MAKE-RANDOM-STATE to accept #T as an argument.

1993-10-14 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dostrap.h[1.3], microcode/bchgcl.c[9.48],
microcode/bchpur.c[9.63], microcode/bintopsb.c[9.57],
microcode/default.h[9.41], microcode/ppband.c[9.47],
microcode/storage.c[9.54], microcode/tterm.c[1.4]:
Update date.

* microcode/Attic/dostrap.c[1.5], microcode/bchdmp.c[9.73],
microcode/bchgcc.h[9.55], microcode/bchgcl.c[9.47],
microcode/bchmmg.c[9.82], microcode/bchpur.c[9.62],
microcode/bintopsb.c[9.56], microcode/boot.c[9.85],
microcode/default.h[9.40], microcode/extern.h[9.51],
microcode/fasdump.c[9.57], microcode/fasload.c[9.72],
microcode/gccode.h[9.52], microcode/gcloop.c[9.43],
microcode/interp.c[9.79], microcode/intrpt.h[1.16],
microcode/memmag.c[9.56], microcode/nttrap.c[1.9],
microcode/object.h[9.43], microcode/ppband.c[9.46],
microcode/psbtobin.c[9.50], microcode/purify.c[9.52],
microcode/purutl.c[9.46], microcode/stack.h[9.36],
microcode/storage.c[9.53], microcode/sysprim.c[9.39],
microcode/uxtrap.c[1.24], microcode/version.h[11.144]:
Change Scheme memory layout and make constant space grow as needed
when things are purified.

1993-10-13 Chris Hanson <[email protected]>

* runtime/string.scm[14.9]:
Fix definition of STRING-PAD-LEFT: it's supposed to truncate from the
left, not the right.

* compiler/machines/C/compiler.sf[1.2],
compiler/machines/alpha/compiler.sf[1.2],
compiler/machines/bobcat/compiler.sf[1.14],
compiler/machines/i386/compiler.sf[1.4],
compiler/machines/mips/compiler.sf-big[1.4],
compiler/machines/mips/compiler.sf-little[1.4],
compiler/machines/spectrum/compiler.sf[1.14],
compiler/machines/vax/compiler.sf[1.5]:
Eliminate another vestige of "base/hashtb".

1993-10-12 Chris Hanson <[email protected]>

* compiler/machines/C/decls.scm[1.3],
compiler/machines/alpha/decls.scm[1.5],
compiler/machines/bobcat/decls.scm[4.36],
compiler/machines/i386/decls.scm[1.7],
compiler/machines/mips/decls.scm[1.9],
compiler/machines/sparc/decls.scm[1.3],
compiler/machines/spectrum/decls.scm[4.34],
compiler/machines/vax/decls.scm[4.12]:
Fix think-o in last change.

* runtime/hashtb.scm[1.12], runtime/runtime.pkg[14.203]:
Change names:
hash-table/strong-constructor => strong-hash-table/constructor
hash-table/weak-constructor => weak-hash-table/constructor

* compiler/back/symtab.scm[1.45], compiler/base/infnew.scm[4.10],
compiler/base/make.scm[4.100], compiler/machines/C/compiler.cbf[1.2],
compiler/machines/C/compiler.pkg[1.4],
compiler/machines/C/decls.scm[1.2],
compiler/machines/alpha/compiler.cbf[1.2],
compiler/machines/alpha/compiler.pkg[1.9],
compiler/machines/alpha/decls.scm[1.4],
compiler/machines/bobcat/compiler.cbf[1.2],
compiler/machines/bobcat/compiler.pkg[1.47],
compiler/machines/bobcat/decls.scm[4.35],
compiler/machines/i386/compiler.cbf[1.3],
compiler/machines/i386/compiler.pkg[1.19],
compiler/machines/i386/decls.scm[1.6],
compiler/machines/mips/compiler.cbf[1.2],
compiler/machines/mips/compiler.pkg[1.17],
compiler/machines/mips/decls.scm[1.8],
compiler/machines/sparc/decls.scm[1.2],
compiler/machines/spectrum/compiler.cbf[1.2],
compiler/machines/spectrum/compiler.pkg[1.45],
compiler/machines/spectrum/decls.scm[4.33],
compiler/machines/vax/compiler.cbf[1.5],
compiler/machines/vax/compiler.pkg[1.19],
compiler/machines/vax/decls.scm[4.11],
compiler/rtlbase/rtlobj.scm[4.11]:
Eliminate "base/btree" and "base/hashtb" files. Rewrite code to use
runtime system's rb-tree and hash-table abstractions.

* edwin/txtprp.scm[1.14]:
Use SYMBOL<? defined by runtime system.

* cref/object.scm[1.7], runtime/symbol.scm[1.3]:
SYMBOL=? was dumb mistake. Deleted.

1993-10-11 Chris Hanson <[email protected]>

* cref/Attic/triv.con[1.4], cref/Attic/triv.ldr[1.3],
cref/conpkg.scm[1.4], cref/cref.pkg[1.5], cref/cref.sf[1.6],
cref/forpkg.scm[1.8], cref/make.scm[1.9], cref/object.scm[1.6],
cref/redpkg.scm[1.5], cref/toplev.scm[1.6]:
Eliminate BTREE data structure, replacing it with RB-TREE
implementation that is built in to the runtime system. This
replacement improves overall performance by a factor of three.

* runtime/symbol.scm[1.2]:
New procedures SYMBOL=? and SYMBOL<?.

* edwin/replaz.scm[1.78]:
Use new procedures RE-MATCH-DATA and SET-RE-MATCH-DATA! in an attempt
to guarantee that the match data isn't trashed by hidden calls to the
matching code. Use SAVE-EXCURSION to preserve the values of point and
mark when doing a recursive edit.

* edwin/edwin.pkg[1.139], edwin/regexp.scm[1.65]:
Implement RE-MATCH-DATA and SET-RE-MATCH-DATA! to allow more general
control over match data.

* edwin/curren.scm[1.110]:
Implement SAVE-EXCURSION.

* runtime/hashtb.scm[1.11]:
* SET-HASH-TABLE/REHASH-THRESHOLD! now preserves the table's usable
size. Previously it preserved the physical size.

* SET-HASH-TABLE/REHASH-SIZE! now might reduce the table's usable size
if the new value adjusts the shrink threshold upwards.

* The REHASH-SIZE of a table is now used to adjust the usable size (as
documented). Previously it was adjusting the physical size.

* If an INITIAL-SIZE is given, the table's usable size is initialized
to that value. Subsequently, the usable size does not change until
the table's count exceeds it, at which point normal resizing
(growing AND shrinking) begins. If the INITIAL-SIZE is not given or
is #F, the table is initialized to some unspecified usable size and
resizes itself according to need.

1993-10-10 Chris Hanson <[email protected]>

* runtime/hashtb.scm[1.10], runtime/runtime.pkg[14.202]:
Implement MAKE-EQUAL-HASH-TABLE. Change EQV? hash tables to hold onto
numbers strongly; other pointer objects are still held weakly.

* runtime/equals.scm[14.5]:
Use fixnum arithmetic on vectors. Convert explicit type code tests to
predicates that open-code into the same thing.

* sf/gconst.scm[4.17], sf/usiexp.scm[4.19]:
Arrange for CELL? to be open-coded by the compiler.

1993-10-09 Chris Hanson <[email protected]>

* runtime/hashtb.scm[1.9], runtime/runtime.pkg[14.201]:
HASH-TABLE/STRONG-CONSTRUCTOR and HASH-TABLE/WEAK-CONSTRUCTOR simplify
definition of most common constructors.

* runtime/hashtb.scm[1.8]:
Fix rehashing code to handle invalid keys correctly. Merge two places
that did rehashing into a single procedure.

1993-10-08 Chris Hanson <[email protected]>

* runtime/hashtb.scm[1.7]:
Fix think-o in previous change.

* runtime/hashtb.scm[1.6], runtime/runtime.pkg[14.200]:
Implement eqv?-hash tables.

* runtime/hashtb.scm[1.5], runtime/runtime.pkg[14.199]:
Implementation of new, very efficient EQ?-hash tables. These tables
use address hashing, automatically rehash themselves when garbage
collections move their keys around, and automatically clean themselves
as their keys are reclaimed by the GC. MAKE-EQ-HASH-TABLE is used to
create these tables; MAKE-OBJECT-HASH-TABLE and MAKE-SYMBOL-HASH-TABLE
are now aliases for this new procedure.

HASH-TABLE/SIZE now returns the "usable size" of the table, as claimed
by the documentation, rather than the "physical size".

New enumeration procedures HASH-TABLE->ALIST, HASH-TABLE/KEY-LIST, and
HASH-TABLE/DATUM-LIST.

* runtime/rbtree.scm[1.4]:
Modify RB-TREE->ALIST, RB-TREE/KEY-LIST, and RB-TREE/DATUM-LIST to be
iterative rather than recursive. Previously they were recursive with
a stack depth proportional to the length of the result; since balanced
trees are designed for use with very large collections this was
disastrous.

1993-10-07 Chris Hanson <[email protected]>

* runtime/hashtb.scm[1.4], runtime/rbtree.scm[1.3]:
Limit interrupt locking to minimum needed for single process. This
protects against interrupts occurring during a critical section, but
does not prevent concurrent access to the data structures.

* runtime/hashtb.scm[1.3], runtime/runtime.pkg[14.198]:
Complete rewrite of hash-table implementation to improve efficiency,
to implement shrinking of hash tables, and to fix amortization of
table growth.

1993-10-06 Chris Hanson <[email protected]>

* runtime/rbtree.scm[1.2], runtime/runtime.pkg[14.197]:
Add type-checking of tree arguments and interrupt locking. Add new
operations RB-TREE/KEY-LIST and RB-TREE/DATUM-LIST.

* edwin/edwin.pkg[1.138], edwin/info.scm[1.117]:
Add new editor variable info-selection-key which implements
mouse-sensitive, highlighted regions for selecting Info nodes and menu
items.

* edwin/comtab.scm[1.64], edwin/edwin.pkg[1.137]:
Export COMTAB-KEY? which is true of keys that can be placed in
comtabs.

* edwin/edwin.pkg[1.136]:
Export new Info editor variable. Also export Info commands.

* edwin/debug.scm[1.20], edwin/edwin.pkg[1.135],
edwin/txtprp.scm[1.13]:
Define some procedures to hide the use of the text-property mechanism
for highlighting, local comtabs, and read-only regions.

1993-10-05 Chris Hanson <[email protected]>

* edwin/bufwfs.scm[1.18], edwin/edwin.pkg[1.134],
edwin/txtprp.scm[1.12], edwin/undo.scm[1.56]:
Major rewrite of text property mechanism. New implementation uses
red/black trees for properties within intervals, and uses red/black
balancing algorithm for intervals. Interface to editor is simplified,
as is the interface to the undo mechanism. The redisplay code no
longer uses the internals of the implementation, but instead uses
standard external entries. Adjacent intervals are now merged together
when their property sets are the same; property data are compared for
equality using EQV?.

* edwin/edwin.ldr[1.46]:
Load red/black tree implementation for use by text-property code.

* edwin/filcom.scm[1.177]:
Fix think-o: argument to SET-VISITED-PATHNAME might be #F.

* runtime/option.scm[14.24], runtime/runtime.pkg[14.196]:
Add red/black tree datatype option.

1993-10-04 Stephen Adams <[email protected]>

* microcode/errors.h[9.41]:
*** empty log message ***

1993-09-30 Stephen Adams <[email protected]>

* runtime/runtime.pkg[14.195]:
exported FOLD-LEFT and FOLD-RIGHT to ()

* runtime/list.scm[14.18]:
Added fold-left and fold-right

1993-09-30 Brian A. LaMacchia <[email protected]>

* edwin/edwin.ldr[1.45], edwin/loadef.scm[1.25], edwin/rmail.scm[1.30],
edwin/rmailsum.scm[1.32]:
Made rmailsum.scm part of the default edwin system (i.e. it's no longer
an autoload) to fix a bug in RMAIL-CEASE-EDIT (rmail-summary-buffer was
unassigned if rmailsum.scm wasn't loaded).

1993-09-23 Chris Hanson <[email protected]>

* runtime/conpar.scm[14.31]:
Redo last change -- can't just rewrite frame elements because that
potentially screws up operation that builds continuations from stack
frames.

* edwin/comred.scm[1.107]:
Don't treat input events as commands unless they're button events.
Even the latter case doesn't always want to be treated that way, but
there's no good way to figure out what the correct treatment is.

* edwin/bufwiu.scm[1.25]:
"Clever" fix to handle case of deletion to window start causes "point
not visible at end of redisplay" error. This happens when the start
mark is clobbered and the new start is not near enough to the point;
for example by deleting some text, then replacing it with itself.

Also, somehow UPDATE-OUTLINES! is getting called with FORCE-REDRAW?
and the CURRENT-START-MARK both false, which shouldn't be able to
happen; compiled code deals with this by treating #f as 0. This
change fixes this unusual case.

* runtime/conpar.scm[14.30]:
Stack-marker frames must be identifiable as such. Several things
depend on this. Also, it's very undesirable for such frames to be
identified as subproblem frames; if so, they clutter up the debugger
output significantly.

1993-09-21 Guillermo J. Rozas <[email protected]>

* microcode/nttrap.c[1.8]:
Add a kludge to prevent a double-fault under Windows 3.1

* microcode/nttrap.c[1.7]:
Allow other guard page accesses to continue.
Set the stack protection boundary to the page before Stack_Guard so
that the interpreter will find its own problems.

1993-09-20 Guillermo J. Rozas <[email protected]>

* runtime/gc.scm[14.15]:
Missing unguarded cdr of the result of purify.

* runtime/gc.scm[14.14]:
Take cdr of pairs only.

* runtime/gc.scm[14.13]:
Avoid infinite loop.

* runtime/gc.scm[14.12]:
Simplify interface to purify.

* runtime/gc.scm[14.11]:
default/gc-flip should always flip, even when purify fails.

* microcode/ntutl/config.bat[1.6], microcode/ntutl/makefile[1.13]:
Add .cur files.

1993-09-19 Stephen Adams <[email protected]>

* runtime/make.scm[14.49]:
Altered order of graphics initialization to make X the default graphics
device type (in preference to starbase).

1993-09-18 Guillermo J. Rozas <[email protected]>

* runtime/gc.scm[14.10]:
purify can now return three possible status codes:
- true: did it.
- false: cannot do it.
- otherwise: can do it, but not at this gc.

1993-09-17 Chris Hanson <[email protected]>

* edwin/cinden.scm[1.9]:
Fix old typo.

1993-09-16 Stephen Adams <[email protected]>

* microcode/ntutl/ntgui.rc[1.5]:
Added VERSIONINFO resource

* microcode/ntscreen.c[1.19]:
More frightening message when closing master_tty_window

* microcode/ntutl/ntgui.rc[1.4]:
Added icon & cursor

1993-09-16 Chris Hanson <[email protected]>

* edwin/schmod.scm[1.34]:
SCHEME-COMPLETE-SYMBOL now downcases the prefix that it is trying to
complete; previously it did not which caused lossage when the prefix
had upper-case characters in it.

1993-09-15 Stephen Adams <[email protected]>

* runtime/x11graph.scm[1.34]:
Added x-graphics-default-geometry & ..-default-display-name

* runtime/runtime.pkg[14.194]:
Globalized x-graphics-default-geometry & x-graphics-default-display-name

* runtime/x11graph.scm[1.33]:
* Added new graphics-device-type protocol - use 'X instrad
of x-graphics-device-type
* generalized X-IMAGE. The CRAETE-IMAGE operation now returns
an IMAGE. To get the orginal X-IMAGE, use
(image/descriptor IMAGE)
* to draw image, use
(graphics-operation device 'draw-image x y image)

* runtime/starbase.scm[1.10]:
New graphics-device-type protocol

* runtime/graphics.scm[1.6]:
Added generalized images

* runtime/runtime.pkg[14.193]:
Generalized graphics images

1993-09-15 Chris Hanson <[email protected]>

* edwin/comred.scm[1.106]:
Make sure that keyboard macro definition is terminated when ^G is
typed or when an error occurs.

1993-09-15 Guillermo J. Rozas <[email protected]>

* microcode/utils.c[9.64]:
Remove spurious comma that was legal but had the completely wrong
effect!

* sf/subst.scm[4.12]:
build-new-code was incorrectly passing scode to
combination/optimizing-make.

1993-09-14 Guillermo J. Rozas <[email protected]>

* microcode/m/Attic/hp9k300.h[1.12], microcode/m/Attic/hp9k400.h[1.8]:
Define hp9000s300, gone in 9.01.

1993-09-13 Guillermo J. Rozas <[email protected]>

* microcode/ntutl/scheme16.c[1.7], microcode/ntutl/scheme31.c[1.5],
microcode/ntutl/scheme32.c[1.7]:
offsets are not unsigned.
Make ntwntlib.c and ntw16lib.c timer interrupt handlers virtually
identical.

* microcode/ntsig.c[1.14]:
Increase the catatonia period. Loading large bands takes longer than
15 seconds.

* microcode/ntscreen.c[1.18]:
Add alloc_event_failure so that a breakpoint can be set easily.

* microcode/ntscmlib.h[1.4]:
Offsets are not unsigned!

* microcode/ntfile.c[1.4]:
Open all files with read sharing.

* microcode/intrpt.h[1.15]:
Make COMPILER_SETUP_INTERRUPT test only for enabled interrupts.

* edwin/utils.scm[1.34]:
Close the interrupt window correctly.

1993-09-12 Guillermo J. Rozas <[email protected]>

* microcode/cmpint.c[1.72]:
Take interrupts at the point at which the interrupt mask is restored.

* microcode/cmpint.c[1.71]:
Fix mismatch in dummy version of do_bkpt_proceed.

* microcode/hooks.c[9.53]:
Can't count.

* edwin/edwin.pkg[1.133.1.1]:
Update to match the Unix version.

1993-09-11 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/hppa.h[1.46], microcode/comutl.c[1.27]:
Change breakpoint handles to non-marked-vectors to make the runtime
system's life easier.

* runtime/conpar.scm[14.29], runtime/conpar.scm[14.28],
runtime/udata.scm[14.16]:
Add the ability to parse special compiled code frames.

* microcode/cmpint.c[1.70]:
Distinguish between return-to-interpreter and reflect-to-interface.

* microcode/cmpint.c[1.69]:
Make the interrupt window in breakpoint proceed narrower by taking all
interrupts before actually proceeding.

* microcode/cmpint.c[1.68], microcode/comutl.c[1.26],
microcode/const.h[9.43], microcode/fixobj.h[9.35],
microcode/hooks.c[9.52], microcode/ntgui.c[1.11],
microcode/ntgui.h[1.6], microcode/ntsig.c[1.13],
microcode/prosio.c[1.9], microcode/utabmd.scm[9.71],
microcode/version.h[11.143]:
- Add a primitive facility to set breakpoints on compiled code.
- Improve with-interrupt-mask and with-stack-marker from compiled
code.

* microcode/cmpauxmd/hppa.m4[1.33], microcode/cmpintmd/hppa.h[1.45]:
Add a primitive facility to set breakpoints on compiled code.

1993-09-10 Chris Hanson <[email protected]>

* runtime/io.scm[14.37], runtime/thread.scm[1.20]:
Change BLOCK-ON-INPUT-DESCRIPTOR to return one of the three symbols:
INPUT-AVAILABLE, PROCESS-STATUS-CHANGE, or INTERRUPT. This call will
now reliably return PROCESS-STATUS-CHANGE when the microcode signals
such a change.

* edwin/xterm.scm[1.46]:
Check for process status changes before blocking. No longer need to
treat INTERRUPT as a possible process status change since the runtime
system has been modified to reliably produce the right result.

* edwin/process.scm[1.31]:
Signal modeline events appropriately for changes to a process's
status. This guarantees that the modeline is updated correctly when
the events occur.

* runtime/thread.scm[1.19]:
Generalize input descriptors -- test them using eqv? instead of =.

1993-09-10 Guillermo J. Rozas <[email protected]>

* microcode/ntscreen.c[1.17]:
Yet another pass at the alloc_event bug: have rewritten all the
deallocation code.

1993-09-09 Chris Hanson <[email protected]>

* edwin/xterm.scm[1.45], microcode/uxio.c[1.31]:
Attempt to detect process status changes more reliably.

* edwin/edwin.pkg[1.133], edwin/txtprp.scm[1.11]:
Rename PREV-SPECIFIC-PROPERTY-CHANGE to
PREVIOUS-SPECIFIC-PROPERTY-CHANGE.

* edwin/edwin.pkg[1.132], edwin/txtprp.scm[1.10]:
Rename GET-PROPERTY-AT to GET-TEXT-PROPERTY and TEXT-PROPERTIES-AT to
GET-TEXT-PROPERTIES.

* edwin/edwin.pkg[1.131]:
Eliminate GET-PROPERTY which is now undefined.

* edwin/debug.scm[1.19], edwin/debug.scm[1.18]:
Eliminate unused variable warnings.

* edwin/debug.scm[1.17]:
Change to use new property operations. Repaginate.

* edwin/edwin.pkg[1.130], edwin/txtprp.scm[1.9]:
Implement new operations ADD-TEXT-PROPERTY and REMOVE-TEXT-PROPERTY.
Make type and range checking on modification operations more strict.
Add interrupt locking to the modification operations. Fix some typos.

* edwin/dired.scm[1.137]:
Fix bug: renaming last file in dired buffer to another directory
signalled an error.

1993-09-09 Guillermo J. Rozas <[email protected]>

* microcode/lookup.c[9.54]:
Fix the error the right way.

* microcode/lookup.c[9.53]:
Add cast to eliminate warning.

* microcode/bchdmp.c[9.72], microcode/unxutl/Attic/config[1.20],
microcode/ux.h[1.52], microcode/ux.h[1.51], microcode/uxsock.c[1.12],
microcode/uxtrap.h[1.22]:
Linux patch.

1993-09-08 Chris Hanson <[email protected]>

* runtime/version.scm[14.164], runtime/x11graph.scm[1.32]:
This is an incompatible change that requires microcode 11.142. This
change affects only the X11 graphics interface.

Change handling of Configure events so that the runtime system
receives them and instructs the microcode to do the reconfiguration.
This is necessary to get correct synchronization of these events.

Additionally fix some bugs in the user-event mechanism.

* microcode/version.h[11.142], microcode/x11graph.c[1.31]:
This is an incompatible change that requires runtime 14.164. This
change affects only the X11 graphics interface.

Change handling of Configure events so that the runtime system
receives them and instructs the microcode to do the reconfiguration.
This is necessary to get correct synchronization of these events.

* edwin/filcom.scm[1.176]:
Change find-file-hooks to pass the buffer to the event receivers.

1993-09-08 Guillermo J. Rozas <[email protected]>

* microcode/ntgui.h[1.5], microcode/ntsig.c[1.12],
microcode/ntutl/scheme16.c[1.6], microcode/ntutl/scheme32.c[1.6]:
Prevent multiple catatonia messages.

* microcode/bchmmg.c[9.81], microcode/memmag.c[9.55],
microcode/nttrap.c[1.6], microcode/stack.h[9.35]:
Add ability to detect stack overflow in NT/Windows.

1993-09-07 Guillermo J. Rozas <[email protected]>

* runtime/site.scm.dos[1.12]:
Add default value for the TERM environment variable.

* runtime/dosprm.scm[1.20]:
Default variables can now be initialized by running a thunk.

* edwin/utils.scm[1.33]:
Close interrupt window in string-allocate.

* microcode/interp.c[9.78]:
Take interrupts immediately when restoring the interrupt mask.

* microcode/cmpint.c[1.67]:
Check interrupts on return from primitives for the i386 back end.
i386 compiled code now checks for interrupts on the calling side of
the return address, not the receiving side.

* microcode/ntgui.c[1.10]:
Attempt to preclude multiple catatonia windows for showing up.

* microcode/ntscreen.c[1.16]:
Fix keyboard event storage leak.
Reduce input buffer size to 250.
Increase maximum screen size.

* microcode/ntsig.c[1.11]:
Reduce catatonia timer to 15 sec.

1993-09-04 Guillermo J. Rozas <[email protected]>

* microcode/ntgui.c[1.9], microcode/ntgui.h[1.4],
microcode/ntscmlib.h[1.3], microcode/ntscreen.c[1.15],
microcode/ntscreen.h[1.8], microcode/ntsig.c[1.10],
microcode/nttop.c[1.10], microcode/ntutl/makefile[1.12],
microcode/ntutl/scheme16.c[1.5], microcode/ntutl/scheme31.c[1.4],
microcode/ntutl/scheme32.c[1.5]:
Add a catatonia timer.

* edwin/decls.scm[1.49]:
Add Arthur's debugger to the list of files to be processed.

1993-09-03 Chris Hanson <[email protected]>

* runtime/thread.scm[1.18]:
Don't restart the real-time timer interrupt unless the restart would
cause the interrupt to be delivered before it would have been
otherwise.

* edwin/comman.scm[1.74], edwin/decls.scm[1.48],
edwin/ed-ffi.scm[1.32], edwin/edwin.ldr[1.44],
edwin/edwin.pkg[1.129]:
Fix typo. Split new doc string stuff into separate file.

1993-09-03 Guillermo J. Rozas <[email protected]>

* microcode/bchmmg.c[9.80]:
Change error output under NT. The console-based interface doesn't
work.

* edwin/edwin.pkg[1.129.1.1]:
Update to match Unix version.

* microcode/ntsys.c[1.4], microcode/ntsys.h[1.4],
microcode/nttop.c[1.9]:
Fix version number.

* microcode/ntscreen.c[1.14]:
Redo timers to use the Windows WM_TIMER mechanism.
Fix problem with turds left behind when resizing the screen.

* microcode/ntenv.c[1.9], microcode/ntgui.c[1.8],
microcode/ntscreen.h[1.7], microcode/ntsig.c[1.9]:
Redo timers to use the Windows WM_TIMER mechanism.

* microcode/prntio.c[1.2]:
Check for pre-buffered window events (i.e. keystrokes) before going
off to MsgWaitForMultipleObjects.

* microcode/ntutl/scheme32.c[1.4]:
Change the timer period.

* microcode/ntutl/bch-cl3.lst[1.5], microcode/ntutl/makefile[1.11],
microcode/ntutl/scm-cl3.lst[1.5]:
Flush ntutil

1993-09-02 Chris Hanson <[email protected]>

* runtime/site.scm.unix[1.10]:
Update for current directories.

* edwin/intmod.scm[1.64]:
Eliminate "unused binding" warning.

1993-09-02 Guillermo J. Rozas <[email protected]>

* edwin/tterm.scm[1.24]:
Avoid screen update when the screen has not been resized.

* edwin/comman.scm[1.73]:
Fix bug introduced in last edit.

* edwin/comman.scm[1.72]:
Make docstring search default to the edwin etc directory.

1993-09-02 Joe Bank <[email protected]>

* edwin/debug.scm[1.16]:
Changed a few things so that it will work on windows.
Now will only create screen if on a unix system.

1993-09-01 Chris Hanson <[email protected]>

* runtime/x11graph.scm[1.31], runtime/x11graph.scm[1.30]:
Fix think-o in last change.

* runtime/runtime.pkg[14.192], runtime/x11graph.scm[1.29]:
Add some new functionality to the X graphics interface to allow access
to mouse, keyboard, and focus events that are used by the interface
itself. These events can be used to build useful user interfaces.

* sf/copy.scm[4.4], sf/make.scm[4.27], sf/object.scm[4.7],
sf/pardec.scm[4.9], sf/reduct.scm[4.8], sf/subst.scm[4.11],
sf/toplev.scm[4.12], sf/usiexp.scm[4.18], sf/xform.scm[4.6]:
Extend REPLACE-OPERATOR declaration to allow it to work on a
combination whose operator is a primitive procedure. In order to do
this, it was necessary to extend the COMBINATION datatype to include a
BLOCK object; this change affected quite a few files.

1993-09-01 Guillermo J. Rozas <[email protected]>

* runtime/dosprm.scm[1.19]:
Get rid of unbound variable.

* runtime/conpar.scm[14.27]:
Teach the runtime system how to display the names of utilities and
builtins when a trap occurs within them.

* microcode/cmpint.c[1.66]:
Fix typo.

* microcode/cmpauxmd/hppa.m4[1.32], microcode/cmpint.c[1.65],
microcode/comutl.c[1.25]:
Generate the names of the builtins automatically.

* microcode/uxio.c[1.30]:
Remove fossil.

* microcode/Attic/dosio.c[1.7]:
No select in DOS.

* microcode/ntio.c[1.9]:
Fix minor mispellings.

* edwin/edwin.pkg[1.128.1.1]:
Update to match Unix version.

* microcode/version.h[11.141]:
- Fix various redisplay/resize bugs, and add notification of resize for Edwin.
- Add select capabilities to NT version.

* microcode/ntscreen.c[1.13], microcode/ntscreen.h[1.6]:
Fix various bugs, and add notification of resize for Edwin.

* microcode/ntio.c[1.8], microcode/ntsig.c[1.8],
microcode/nttop.c[1.8]:
Add select capability to NT version.

* microcode/ntgui.c[1.7]:
Add high-priority hot-key polling.

* microcode/ntenv.c[1.8]:
Add (disabled) timer code.

* microcode/ntutl/bch-cl3.lst[1.4], microcode/ntutl/bch-p-nt.lst[1.4],
microcode/ntutl/makefile[1.10], microcode/ntutl/scm-cl3.lst[1.4],
microcode/ntutl/scm-p-nt.lst[1.4], runtime/dosprm.scm[1.18]:
Add select capabilities for NT.

* edwin/edwin.pkg[1.128]:
Add resize capability for consoles.
Add ability to dump docstrings.

* edwin/edwin.ldr[1.43]:
Print message reminding user to dump doc strings.

* edwin/comman.scm[1.71], edwin/modes.scm[1.27]:
Add ability to dump doc strings externally.

* edwin/tterm.scm[1.23]:
Add resize-screen.

* edwin/termcap.scm[1.5]:
tn-x-size and tn-y-size are mutable.

* edwin/scrcom.scm[1.4]:
Add resize-screen command.

* edwin/modefs.scm[1.144]:
Bind resize-scree to #\m-S

* edwin/ansi.scm[1.5]:
Add enter/exit from termcap mode for the NT emulator.

1993-09-01 Michael R. Blair <[email protected]>

* runtime/option.scm[14.23]:
Add pc-sample to the options list, and make load-option do a temporary
cd to the directory where the option file comes from, so that
subsequent loads, for multiple-file options, work correctly.
-- GJR

* runtime/option.scm[14.22]:
Finalized packaging of PC sample load option

1993-08-31 Chris Hanson <[email protected]>

* sf/usiexp.scm[4.17]:
Fix pagination.

* runtime/boot.scm[14.9], runtime/intrpt.scm[14.19]:
Undo random gratuitous changes.

1993-08-31 Guillermo J. Rozas <[email protected]>

* microcode/term.c[1.9]:
If the fixed objects vector is not valid, edwin_auto_save should not
fail.

* microcode/cmpauxmd/hppa.m4[1.31]:
Forgot nullify in cross_segment_call.

1993-08-31 Michael R. Blair <[email protected]>

* runtime/intrpt.scm[14.18]:
Fix parenthesis problem, again.

* runtime/boot.scm[14.8]:
Remove Descartes interrupt bits. They are only needed in the PC Sampler.

* runtime/intrpt.scm[14.17]:
Remove spurious close paren.

* runtime/intrpt.scm[14.16]:
Reserve interrupt slots for the Descartes PC sampler, and
initialize to the illegal interrupt handler.

* runtime/runtime.pkg[14.191]:
Export compiled-code-block/filename to the global.

1993-08-30 Guillermo J. Rozas <[email protected]>

* microcode/scheme.h[9.36]:
Add macro to protect against multiple inclusion.

1993-08-30 Jacob Katzenelson <[email protected]>

* sf/usiexp.scm[4.16]:
(CPH:) Add expansion of expt for small exact exponents.

1993-08-30 Michael R. Blair <[email protected]>

* runtime/ed-ffi.scm[1.7], runtime/option.scm[14.21]:
More uniform naming to keep related modules together:

coblprof -> pcscobl
iproprof -> pcsiproc

* runtime/option.scm[14.20]:
added PC sample option module

* runtime/make.scm[14.48]:
tweek comments

* runtime/ed-ffi.scm[1.6]:
copyrighted and added pc sample hooks

* runtime/boot.scm[14.7]:
added hooks for dynamically loadable (option) PC sample code

1993-08-29 Guillermo J. Rozas <[email protected]>

* microcode/ntscreen.c[1.12]:
Fix redisplay bugs.

1993-08-29 Michael R. Blair <[email protected]>

* microcode/prosenv.c[1.11]:
changed comments in profile-timer-set/clear: did say ``PC sample'' but should
have said just ``profile'' since PC sampling is not the only use of this timer.
My mistake. ziggy

1993-08-28 Guillermo J. Rozas <[email protected]>

* cref/Attic/triv.ldr[1.2]:
Eliminate redundancies, and use single-file load.

* microcode/uxsig.h[1.2]:
Fix date.

* microcode/Attic/dosenv.c[1.6], microcode/fixobj.h[9.34],
microcode/intrpt.h[1.14], microcode/ntenv.c[1.7],
microcode/osenv.h[1.5], microcode/prosenv.c[1.10],
microcode/unxutl/Attic/ymkfile[1.79], microcode/uxenv.c[1.12],
microcode/uxsig.c[1.27], microcode/uxtrap.c[1.23],
microcode/uxtrap.h[1.21], microcode/version.h[11.140]:
Add hooks for Ziggy's pc-sample profiler.

* microcode/utabmd.scm[9.70]:
Add pc-sample profiler slots to the fixed-objects vector.

* microcode/primutl.c[9.66]:
Add missing parameter to non-ANSI param list.

* microcode/primutl.c[9.65], microcode/syscall.h[1.3],
microcode/unxutl/Attic/ymkfile[1.78], microcode/usrdef.h[9.41],
microcode/utabmd.scm[9.69], microcode/version.h[11.139]:
Add primitive dynamic loading ability to the microcode.

1993-08-27 Chris Hanson <[email protected]>

* runtime/Attic/syntax.scm[14.22]:
Improve syntax error checking for ACCESS.

1993-08-27 Guillermo J. Rozas <[email protected]>

* microcode/ntscreen.c[1.11], microcode/ntscreen.h[1.5]:
- Fix ANSI emulator to handle commands accross buffer boundaries.
- Fix redisplay bug in <ESC>[C
- Add background color customization.

1993-08-26 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rules2.scm[1.7]:
Add missing rule.

* compiler/fgopt/folcon.scm[4.8]:
fold-combinations can fail when it invokes apply.
Add a restart to skip that combination and continue with the rest.

* compiler/machines/C/compiler.pkg[1.3],
compiler/machines/alpha/compiler.pkg[1.8],
compiler/machines/bobcat/compiler.pkg[1.46],
compiler/machines/mips/compiler.pkg[1.16],
compiler/machines/spectrum/compiler.pkg[1.44],
compiler/machines/vax/compiler.pkg[1.18]:
Add export of *block-associations*.

* compiler/base/asstop.scm[1.6]:
Sort variables in fluid-let.

* compiler/back/lapgn1.scm[4.15], compiler/base/asstop.scm[1.5],
compiler/machines/i386/compiler.pkg[1.18],
compiler/machines/i386/rules3.scm[1.27]:
- Move interrupt test on continuation invocation to return point (from
continuation entry point).

- Share return sequences in a single compiled code block.

- Share closure interrupt code.

* compiler/machines/i386/lapgen.scm[1.24],
microcode/cmpauxmd/i386.m4[1.32], microcode/cmpint.c[1.64],
microcode/cmpintmd/i386.h[1.24]:
Add hook for interrupt-continuation-2.

1993-08-25 Chris Hanson <[email protected]>

* edwin/txtprp.scm[1.8]:
Add error checks to various exported procedures, since mistakes in
these arguments cause obscure bugs and because the procedures can
afford the time. Also abstract a few common patterns.

* edwin/bufwfs.scm[1.17]:
INTERVAL-PROPERTY now takes three arguments instead of two.

* edwin/comred.scm[1.105]:
Fix "N" interactive argument letter so that it converts the command
argument to a numeric value.

1993-08-25 Joe Bank <[email protected]>

* edwin/debug.scm[1.15]:
Made a change so that it still highlights the error message.
Now the text prop it seems to want is '((highlighted . #t))
not just '((highlighted))

1993-08-24 Stephen Adams <[email protected]>

* microcode/ntscreen.c[1.10]:
Separate DELETE key now returns ^D

1993-08-24 Brian A. LaMacchia <[email protected]>

* microcode/unxutl/Attic/ymkfile[1.77]:
Undid the changes, going to wait a day for Jinx.

* microcode/uxyp.c[1.2]:
*** empty log message ***

* microcode/unxutl/Attic/ymkfile[1.76]:
Added files uxyp.c and uxyp.h, BAL's RPC Yellow Pages code

* edwin/rmailsum.scm[1.31]:
rmail-summary-buffer was unassigned initially.

1993-08-24 Chris Hanson <[email protected]>

* edwin/autosv.scm[1.28]:
Add code to update an alist in the fixed-objects vector. This alist
is used by the microcode's "auto-save on exit" feature.

* microcode/term.c[1.8]:
Implement an "auto-save on exit" feature. This assumes that Edwin
keeps the fixed-objects-vector slot FIXOBJ_EDWIN_AUTO_SAVE up to date
with an alist of group/filename pairs. The auto-save feature
determines which entries in the alist need to be saved and writes them
out to auto-save files. The activity is echoed on the error stream.

* microcode/boot.c[9.84]:
Add fixed-objects slot to contain Edwin data structure describing
files that might need to be saved. Initialize this slot to '().

1993-08-24 Guillermo J. Rozas <[email protected]>

* microcode/ntscreen.c[1.9]:
- Fix C-M under Win 3.1.
- Make interrupts flush typeahead correctly.

* microcode/ntutl/scheme16.c[1.4]:
Restore some debugging aids.

* microcode/ntutl/scheme16.def[1.3]:
Fix 16-bit .def file after figuring out what some of the options mean.

* microcode/ntutl/scheme31.c[1.3]:
Insert additional call to VirtualFree, using MEM_RELEASE, to make Win
3.1 happy.

* microcode/gccode.h[9.51]:
Work-around HP-C optimizer bug.

1993-08-24 Michael R. Blair <[email protected]>

* microcode/interp.c[9.77]:
Merge in change to delay setting of Env register until environment is
completely constructed.

1993-08-23 Chris Hanson <[email protected]>

* microcode/edwin.h[1.7]:
Add definition for GROUP-MODIFIED? accessor since that is needed to do
auto-save from microcode.

* microcode/fixobj.h[9.33], microcode/utabmd.scm[9.68]:
Add fixed-objects slot to contain Edwin data structure describing
files that might need to be saved. Initialize this slot to '().

* edwin/txtprp.scm[1.7]:
Fix bug in INTERVAL-PROPERTIES-EQUAL?. Consider two properties equal
if they are EQ?.

* edwin/txtprp.scm[1.6]:
Fix bug in implementation of READ-ONLY text property.

1993-08-23 Guillermo J. Rozas <[email protected]>

* microcode/utils.c[9.63]:
Change feature macro from I386 to i386. I386 is undefined.
Add WINNT try/finally block.

* microcode/cmpauxmd/i386.m4[1.31]:
Move manipulation of C's es to interface_initialize. It does not
change for the duration of the session.

* microcode/bchdmp.c[9.71], microcode/bchgcc.h[9.54],
microcode/bchgcl.c[9.46], microcode/bchpur.c[9.61],
microcode/cmpintmd/i386.h[1.23]:
Make bchscheme work with address relocation.

* microcode/dosutl/Attic/makefile[1.9]:
Add memmag.h as a dependency of memmag.c and bchmmg.c

* microcode/ntutl/makefile[1.9]:
Add bchscheme back to list of generated programs.

1993-08-23 Joe Bank <[email protected]>

* edwin/debug.scm[1.14]:
Made minor revision so that it accepts #f as an environment.

1993-08-22 Guillermo J. Rozas <[email protected]>

* microcode/bchmmg.c[9.79], microcode/bchpur.c[9.60],
microcode/gccode.h[9.50], microcode/memmag.c[9.54],
microcode/purify.c[9.51], microcode/purutl.c[9.45],
microcode/version.h[11.138]:
Merge in microcode gc hook support for Ziggy's profiler.

* microcode/bchgcc.h[9.53]:
NT requires O_BINARY in the file flags.

* edwin/loadef.scm[1.24]:
Dos-specific libraries are also defined under NT so that bands can be
shared.

* microcode/cmpint.c[1.63], microcode/comutl.c[1.24],
microcode/fasload.c[9.71], microcode/version.h[11.137]:
- Add definition of declare-compiled-code-block, used by the compiler
and the program copier to guarantee that the caches have been
synchronized.
- Modify fasload to synchronize the caches when necessary.
- Eliminate compiled-expression cache-flushing kludge since it is no
longer necessary because of the other modifications.

* compiler/base/asstop.scm[1.4], runtime/prgcop.scm[1.4]:
Add calls to declare-compiled-code-block to guarantee that the caches
have been synchronized for newly-created code.

* edwin/artdebug.scm[1.22]:
Merge in personal changes.

* edwin/edwin.pkg[1.127.1.1]:
DOS version.

* edwin/edwin.pkg[1.127]:
Add new imports to (edwin debugger) for improvements to Arthur's
debugger.

* edwin/edwin.pkg[1.126.1.1]:
DOS/NT version.

* edwin/edwin.ldr[1.42], edwin/edwin.pkg[1.126]:
Merge in changes for NT.

* edwin/comhst.scm[1.2], edwin/comint.scm[1.20]:
Move comint-record-input from comint.scm to comhst.scm. comint.scm is
not loaded in the DOS/Windows version.

1993-08-21 Guillermo J. Rozas <[email protected]>

* microcode/ntutl/scheme16.c[1.3]:
Forgot to remove switch entries in last edit.

* microcode/ntasutl.asm[1.4]:
Lost "end" during the last edit.

* microcode/unxutl/Attic/ymkfile[1.75]:
Add dependency from memmag.c to memmag.h

* microcode/cmpauxmd/makefile[1.2]:
Reorder to make "make all" work correctly.

* microcode/cmpauxmd/i386.m4[1.30], microcode/ntenv.c[1.6],
microcode/ntfs.c[1.6], microcode/ntgui.c[1.6], microcode/ntio.c[1.7],
microcode/ntio.h[1.5], microcode/ntscmlib.h[1.2],
microcode/ntsig.c[1.7], microcode/ntsys.c[1.3],
microcode/ntsys.h[1.3], microcode/nttop.c[1.7],
microcode/nttrap.c[1.5], microcode/nttrap.h[1.4],
microcode/nttty.c[1.4], microcode/ntutl/ntgui.rc[1.3],
microcode/ntutl/scheme16.c[1.2], microcode/ntutl/scheme16.def[1.2],
microcode/ntutl/scheme16.mak[1.3], microcode/ntutl/scheme16.mak[1.2],
microcode/ntutl/scheme31.c[1.2], microcode/ntutl/scheme31.def[1.2],
microcode/ntutl/scheme32.c[1.3], microcode/ntutl/scheme32.def[1.2],
microcode/ntutl/scm-cl3.lst[1.3], microcode/ntutl/scm-p-nt.lst[1.3],
microcode/object.h[9.42], microcode/prntenv.c[1.3],
microcode/prntfs.c[1.2], microcode/purify.c[9.50],
microcode/version.h[11.136]:
- Handle address relocation to allow the NT version of Scheme to run
under Windows 3.1.
- Cleanup of the NT sources. Remove DOS fossils.

* microcode/ntutl/config.bat[1.5], microcode/ntutl/makefile[1.8]:
Move some files to ntutl.

* microcode/nt.h[1.5], microcode/ntasutl.asm[1.3]:
Allow for address relocation to make Scheme run under Windows 3.1.
Plus general cleanup of NT code.

* microcode/findprim.c[9.49]:
Add a cast to output to remove warnings from the Microsoft Windows NT
compiler.

* microcode/Attic/config.h[9.81], microcode/cmpint.c[1.62],
microcode/cmpintmd/i386.h[1.22], microcode/fasdump.c[9.56],
microcode/fasload.c[9.70], microcode/gccode.h[9.49],
microcode/gcloop.c[9.42], microcode/intrpt.h[1.13],
microcode/memmag.h[1.2], microcode/ntutl/config.bat[1.4],
microcode/ntutl/makefile[1.7]:
Allow for address relocation to make Scheme run under Windows 3.1.

* microcode/boot.c[9.83]:
Add enter-interpreter hook to make exception handling work under
Windows NT.

* microcode/ntutl/bch-cl3.lst[1.3], microcode/ntutl/bch-p-nt.lst[1.3]:
Flush ntconio.obj, not needed.

1993-08-20 Chris Hanson <[email protected]>

* edwin/rmail.scm[1.29]:
Disable undo in RMAIL buffers, since it shouldn't be needed. The
storage needed for the undo has caused problems for at least one user.
Undo is enabled for buffers in rmail-edit mode.

* edwin/utils.scm[1.32]:
Supply missing noun in error message for allocation-failure.

* edwin/xterm.scm[1.44]:
Fixed two bugs: (1) the HALT-UPDATE and PEEK-NO-HANG operations were
not generating input events to cause redisplay when subprocess or
inferior REPL output required them; (2) there was an interrupt window
between the test for such output and entry into a blocking read. The
former now generate the appropriate events, and the latter has been
eliminated.

* edwin/input.scm[1.98]:
Interaction between HANDLE-SIMPLE-EVENTS and KEYBOARD-READ-1 had a
window in which it was possible to process an event that caused a
redisplay to be needed, but subsequently avoid the redisplay test and
go directly into a blocking read. This window has been eliminated.

1993-08-19 Stephen Adams <[email protected]>

* microcode/prntenv.c[1.2]:
fixed FILE-TIME->STRING to check for a null string returned from
ctime(). This happens with the SDK C runtime library when the time
is -1. The returned string is empty.

1993-08-19 Chris Hanson <[email protected]>

* edwin/comred.scm[1.104], edwin/kmacro.scm[1.40]:
Fix pagination.

* edwin/input.scm[1.97]:
Fix bug introduced by last change: when an input-event is processed by
a "peek" routine, it must be discarded, otherwise the reader gets
stuck in a loop processing the same event over and over.

1993-08-19 Jason Wilson <[email protected]>

* edwin/kmacro.scm[1.39]:
Rewrote the loop in KEYBOARD-MACRO-EXECUTE so that
CALL-WITH-CURRENT-CONTINUATION would get called just once per keyboard
macro. I also made the call to COMMAND-READER supply an optional
arguement (#f) that wasn't being supplied before.

* edwin/comred.scm[1.103]:
Made the command reader loop aware of keyboard-macros so that a call
to without-editor-interupts could be avoided thus speeding up the
code.

1993-08-18 Chris Hanson <[email protected]>

* edwin/bufwin.scm[1.301]:
Fix instance of "point not visible at end of redisplay" error that
Matt Birkholz pointed out. Change code that generates this error to
conditionally force the point to be visible; this results in more
robust behavior.

* runtime/io.scm[14.36]:
Guarantee that CHANNEL-READ not return #f if the argument channel is
set to blocking mode.

1993-08-17 Chris Hanson <[email protected]>

* edwin/debug.scm[1.13]:
Eliminate random delay, which should no longer be needed now that
window initialization sequence is fixed.

* edwin/make.scm[3.79], edwin/xterm.scm[1.43]:
These changes require microcode version 11.135 or later.

Change the startup sequence for X windows. It turns out that there is
a poorly documented constraint which says that the client may not draw
on a newly-created window until the first Expose event for the window
is received. These changes implement this constraint (see the source
code comments for details). Additionally, the startup sequence now
guarantees that the event mask and Edwin's data structures are
properly initialized before the window is mapped, guaranteeing that by
the time the first event arrives, everything is ready for it.

* microcode/version.h[11.135], microcode/x11base.c[1.51]:
These changes are required for Edwin version 3.79. Older versions of
Edwin will still work with this microcode.

* Change "map" argument to window creation primitives so that it can
specify the resource names _and_ not to map the window. Previously
specifying the resource names forced mapping.

* Change the X-DEBUG primitive to accept non-negative fixnums to allow
the amount of debugging information to be set. #f and #t are still
accepted, meaning the same as 0 and 1, respectively.

* Extend "expose" objects with another element that identifies each
one as either an Expose event or a GraphicsExpose event.

* Implement new primitive X-WINDOW-FLUSH.

1993-08-16 Chris Hanson <[email protected]>

* 6001/nodefs.scm[1.9]:
Change WRITE-DEFINITION-VALUE to return the description of the
definition as a string rather than writing it to the REPL port.

* microcode/x11term.c[1.23]:
When reconfiguring a window, clear it. This prevents garbage from
being left in the internal border of the window.

* edwin/xterm.scm[1.42]:
Change handling of "configure" events so that the microcode and Edwin
update their notions of the window's size at the same time.
Previously, the microcode was updated first, then Edwin was updated
later. It was possible for Edwin to write to the screen in the
interval, with arguments based on its (obsolete) notion of the
window's size.

* edwin/curren.scm[1.109]:
Don't delete a screen if it's already deleted.

* edwin/screen.scm[1.103]:
Initialize cursor X and Y of a screen matrix to 0, not #F.

1993-08-16 Jason Wilson <[email protected]>

* runtime/ttyio.scm[1.3]:
Added hooks so that the new emacs debugger that I'm writing can load
in after the console ports have already been made.

1993-08-16 Joe Bank <[email protected]>

* edwin/debug.scm[1.12]:
Tweaked a typo.

1993-08-15 Joe Bank <[email protected]>

* edwin/debug.scm[1.11]:
Made changes to help.

1993-08-14 Jason Wilson <[email protected]>

* edwin/struct.scm[1.89]:
Made groups start out writable? again.

1993-08-14 Joe Bank <[email protected]>

* edwin/debug.scm[1.10]:
Made minor change to select-bline

1993-08-13 Chris Hanson <[email protected]>

* edwin/regexp.scm[1.64], edwin/struct.scm[1.88]:
Add %HASH-NUMBER field to group data structure. This is used to cache
the OBJECT-HASH of the group to speed up regular expression searching.

* edwin/buffer.scm[1.163], edwin/fileio.scm[1.119],
edwin/grpops.scm[1.21], edwin/regops.scm[1.86],
edwin/rmail.scm[1.28], edwin/struct.scm[1.87], edwin/txtprp.scm[1.5]:
Alter WITH-READ-ONLY-DEFEATED so that it defeats read-only intervals
within the group. Additionally, eliminate several instances of
GROUP-INDEX: variables to make later transition away from
DEFINE-NAMED-STRUCTURE easier.

* edwin/debug.scm[1.7]:
Use new procedure STACK-FRAME/REPL-EVAL-BOUNDARY? to detect standard
REPL evaluation boundary frames. This replaces crufty mechanism that
was previously in use here.

* 6001/nodefs.scm[1.8]:
Use new procedure REPL-SCODE-EVAL to do a standard evaluation of the
SCode within HOOK/REPL-EVAL.

* runtime/rep.scm[14.35], runtime/runtime.pkg[14.190]:
Implement REPL-SCODE-EVAL to capture the common idiom of evaluating
some SCode from a REPL.

* runtime/conpar.scm[14.26], runtime/debug.scm[14.35],
runtime/rep.scm[14.34], runtime/runtime.pkg[14.189]:
Implement WITH-REPL-EVAL-BOUNDARY and STACK-FRAME/REPL-EVAL-BOUNDARY?
to mark the boundary between stack frames that are part of the REPL
and those that are part of the expression being evaluated by the REPL.
This marker frame is a "subproblem" frame because that is the easiest
way to make it visible to the debuggers, but operationally it is a
"reduction" frame.

The runtime system's debugger currently ignores these marker frames;
at some point it should be modified to do something with them.

1993-08-13 Jason Wilson <[email protected]>

* edwin/txtprp.scm[1.4]:
I can't believe i wrote this shitty code in the first place but i blew
it in delete-interval.

* edwin/debug.scm[1.9]:
Fix fencepost error in highlighting of subexpressions.

* edwin/screen.scm[1.102]:
Fix highlighting bug in SCREEN-GET-OUTPUT-LINE.

1993-08-13 Joe Bank <[email protected]>

* edwin/debug.scm[1.8]:
Changed continuation->blines and system-frame? to work if the flag
debugger-hide-system-code? is set false.

1993-08-12 Chris Hanson <[email protected]>

* 6001/nodefs.scm[1.7]:
Use new operation, CURRENT-EXPRESSION-CONTEXT, to find out where the
expression being rewritten came from. Use this contextual information
to restrict the generation of definition messages so that they only
occur for expressions evaluated directly in the repl buffer.

* edwin/intmod.scm[1.63]:
Add a new operation on the interface port, CURRENT-EXPRESSION-CONTEXT,
that returns a context description associated with the expression most
recently read from the port. The context description is a symbol
which says where the expression came from. This information will be
used by the 6.001 code to make the generation of special definition
messages sensitive to the context.

* edwin/debug.scm[1.6], edwin/evlcom.scm[1.43],
runtime/load.scm[14.43], runtime/rep.scm[14.33],
runtime/usrint.scm[1.4]:
Change HOOK/REPL-EVAL to accept the calling REPL as its first
argument, in addition to the other arguments.

* edwin/intmod.scm[1.62]:
Change handling of command prompts so that only the standard prompts
are ignored; other prompts are printed. The standard prompts can also
be printed by changing the value of a flag. The set of standard
prompts is defined by a list which can be augmented. These changes
make the prompt argument of PROMPT-FOR-COMMAND-EXPRESSION useful.

* 6001/make.scm[15.21]:
It's OK to print compound procedure names.

* 6001/arith.scm[1.4]:
Change / operation to return exact quotient of two exact integers if
the numerator is a multiple of the denominator.

* edwin/bufout.scm[1.9]:
Add operation to get the mark from a buffer output port.

* runtime/pp.scm[14.28]:
Extend highlighting mechanism so that Edwin can take advantage of it.

1993-08-12 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/rulfix.scm[4.46]:
Fix the register*constant fixnum-multiply rule to match the change to
the corresponding rewrite rules.

1993-08-12 Jason Wilson <[email protected]>

* edwin/edwin.ldr[1.41]:
Changed the order of loading xcom so that joe's debugger would be
happy.

1993-08-12 Joe Bank <[email protected]>

* edwin/debug.scm[1.5], edwin/edwin.pkg[1.125]:
New version of the edwin debugger added.

1993-08-11 Stephen Adams <[email protected]>

* microcode/ntscreen.c[1.8]:
Hacked in temporary arrow keys and Home (^A) and End (^E) keys.

1993-08-11 Chris Hanson <[email protected]>

* compiler/machines/C/compiler.pkg[1.2],
compiler/machines/alpha/compiler.pkg[1.7],
compiler/machines/bobcat/compiler.pkg[1.45],
compiler/machines/i386/compiler.pkg[1.17],
compiler/machines/mips/compiler.pkg[1.15],
compiler/machines/spectrum/compiler.pkg[1.43],
compiler/machines/vax/compiler.pkg[1.17]:
Add compiler:COALESCING-CONSTANT-WARNINGS? to list of switches
exported to the global environment.

* 6001/6001.cbf[1.6], cref/cref.cbf[1.2], edwin/edwin.cbf[1.3],
runtime/runtime.cbf[1.2], sf/sf.cbf[1.2]:
Don't show warnings about constant coalescing.

* microcode/term.c[1.7]:
Supply missing argument to outf_fatal in TERM_SIGNAL handler. Make
termination message for TERM_HALT appear on stdout, since it is not
error information.

1993-08-10 Stephen Adams <[email protected]>

* microcode/utils.c[9.62]:
Paramterized stack saving in C_call_scheme for I386

1993-08-10 Chris Hanson <[email protected]>

* edwin/grpops.scm[1.20]:
Conditionalize calls to text-property operations on an open-coded test
for the existence of properties in the group being modified.

* edwin/buffer.scm[1.162], edwin/bufset.scm[1.11],
edwin/comman.scm[1.70]:
Eliminate instances of DEFINE-NAMED-STRUCTURE.

* edwin/txtprp.scm[1.3]:
Implement INTERVAL-PROPERTIES-EQUAL?.

* edwin/tagutl.scm[1.51]:
Eliminate spurious compiler warning.

* edwin/comred.scm[1.102], edwin/comtab.scm[1.63],
edwin/ed-ffi.scm[1.31], edwin/edtfrm.scm[1.87],
edwin/edwin.ldr[1.40], edwin/edwin.pkg[1.124], edwin/fill.scm[1.59],
edwin/hlpcom.scm[1.106], edwin/txtprp.scm[1.2]:
Define mechanism to find and execute commands from point-local comtabs
when they exist, and modify various places to use it instead of
COMTAB-ENTRY.

Fix installation of text properties: "edwin.pkg" not propertly
modified.

Change name of package for text properties.

* edwin/basic.scm[1.130], edwin/buffrm.scm[1.48],
edwin/bufmnu.scm[1.125], edwin/c-mode.scm[1.52],
edwin/dosshell.scm[1.3], edwin/edtstr.scm[1.22],
edwin/filcom.scm[1.175], edwin/fileio.scm[1.118],
edwin/info.scm[1.116], edwin/iserch.scm[1.19],
edwin/loadef.scm[1.23], edwin/macros.scm[1.60],
edwin/modlin.scm[1.16], edwin/motcom.scm[1.46],
edwin/notify.scm[1.11], edwin/outline.scm[1.7],
edwin/sercom.scm[1.62], edwin/strtab.scm[1.44],
edwin/techinfo.scm[1.4]:
Fix pagination.

* microcode/option.c[1.35]:
Remove random ^Z.

1993-08-09 Jason Wilson <[email protected]>

* edwin/bufwfs.scm[1.16]:
Made changes to draw-region! so that one could have highlighted regions.

* edwin/comred.scm[1.101]:
Made the command reader check for a command-table in the text before
using the default command table.

* edwin/edtfrm.scm[1.86]:
Changed the button event handler so that it would search for a command
table in the text before calling the ordinary routine.

* edwin/decls.scm[1.47], edwin/ed-ffi.scm[1.30], edwin/edwin.ldr[1.39]:
Added the file txtprp.scm.

* edwin/grpops.scm[1.19]:
Changed insert and delete to check the text-property field for
READ-ONLY regions by calling: text-not-insertable? and text-not-deleteable?

* edwin/struct.scm[1.86]:
Added a text-property field to the group data structures. Legal
values for this field are false or an interval tree.

* edwin/undo.scm[1.55]:
Changes to undo so that text property changes could be undone using undo.

1993-08-07 Stephen Adams <[email protected]>

* microcode/utils.c[9.61]:
Fix for re-entrant foreign function: saves C stack & frame pointers

* microcode/option.c[1.34]:
Adjustment of default constant size under NT

* microcode/ntgui.c[1.5]:
Added: support for relinking DLLs

* microcode/ntutl/ntgui.rc[1.2]:
Added a plethora of groovy icons

* microcode/ntscreen.c[1.7]:
Changed default icon

1993-08-06 Jason Wilson <[email protected]>

* compiler/machines/spectrum/rulrew.scm[1.12]:
Make multiply-fixnum do inline case more often. Previously we were
being screwed by the CSE.

1993-08-05 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.61]:
Inferior thread should not return from WAIT-FOR-INPUT until the
desired input is really available.

1993-08-04 Chris Hanson <[email protected]>

* microcode/primutl.c[9.64]:
The utility procedure `strcmp_ci' had a built-in assumption that the
input strings contained no uppercase letters. This is not the case.
The procedure `toupper' is guaranteed to work on all characters iff
the implementation is ANSI compliant. The procedure `_toupper' (ant
`toupper' in non-ANSI implementations) is guaranteed to work _only_ on
lowercase letters.

* microcode/unxutl/Attic/ymkfile[1.74]:
Supply missing dependencies on "memmag.h".

* edwin/intmod.scm[1.60]:
Don't write a message when the working directory of the inferior REPL
is changed; this now happens at odd times and the messages are at best
distracting.

1993-08-03 Guillermo J. Rozas <[email protected]>

* microcode/ntutl/scheme32.c[1.2]:
Fix problem when shutting down before having set up the timer.

* microcode/primutl.c[9.63]:
- Add prototypes for C library procedures.
- Primitive aliasing no longer requires the base primitive to be
present. When incorporating an alias to an inexistent primitive,
the inexistent primitive is declared first.

* microcode/memmag.c[9.53]:
Remove WINNT fossil.

* sf/reduct.scm[4.5]:
Forgot to upgrate to match new data structures.

* microcode/syscall.h[1.2]:
Forgot comment characters after #endif.

* microcode/primutl.c[9.62]:
Add casts to remove warnings by HP cc.

* microcode/errors.h[9.40]:
Fix a problem introduced when checking the file in.

* microcode/dosutl/Attic/makefile[1.8],
microcode/unxutl/Attic/ymkfile[1.73]:
Fix braino in last change.

* microcode/Attic/dostop.c[1.7], microcode/Attic/msdos.h[1.6],
microcode/bchmmg.c[9.78], microcode/boot.c[9.82],
microcode/cmpauxmd/hppa.m4[1.30], microcode/cmpint.c[1.61],
microcode/cmpintmd/hppa.h[1.44], microcode/debug.c[9.45],
microcode/dosutl/Attic/makefile[1.7], microcode/errors.h[9.39],
microcode/extern.c[9.34], microcode/fasload.c[9.69],
microcode/findprim.c[9.48], microcode/interp.h[9.38],
microcode/memmag.c[9.52], microcode/nt.h[1.4],
microcode/nttop.c[1.6], microcode/ntutl/makefile[1.6],
microcode/object.h[9.41], microcode/prename.h[1.8],
microcode/prim.h[9.44], microcode/prims.h[9.43],
microcode/primutl.c[9.61], microcode/unxutl/Attic/ymkfile[1.72],
microcode/usrdef.h[9.40], microcode/utils.c[9.60],
microcode/ux.h[1.50], microcode/uxtop.c[1.11],
microcode/version.h[11.134]:
Change the primitive tables to allow for dynamic declaration of
primitives.

* runtime/parse.scm[14.21]:
Remove warning from sf.

* sf/cgen.scm[4.2], sf/copy.scm[4.3], sf/object.scm[4.6],
sf/sf.pkg[4.9], sf/subst.scm[4.10], sf/toplev.scm[4.11],
sf/usicon.scm[4.3], sf/usiexp.scm[4.15], sf/xform.scm[4.5]:
Add a mechanism for mapping input scode objects to output scode
objects. The original scode objects are passed through to the output,
and the *sf-associate* hook is called on the output scode and the
original scode. The default *sf-associate* does nothing.

1993-08-03 Jacob Katzenelson <[email protected]>

* sf/pardec.scm[4.8]:
Upgrade dumpable expanders to satisfy new arity.

* sf/reduct.scm[4.7]:
Clean up last change -- GJR.

* sf/reduct.scm[4.6]:
Fix the same bug in replace-operator that was just fixed in
reduce-operator. -- GJR

1993-08-02 Chris Hanson <[email protected]>

* edwin/comred.scm[1.100], edwin/debug.scm[1.4],
edwin/editor.scm[1.229], edwin/edwin.pkg[1.123],
edwin/evlcom.scm[1.42]:
Condition handlers can not invoke ABORT-CURRENT-COMMAND because the
handler for that condition might have been bound inside of the binding
for the condition being handled, and thus be unavailable at that time.
This is fixed by introducing a restart, ABORT-EDITOR-COMMAND, and an
associated procedure, RETURN-TO-COMMAND-LOOP. Condition handlers
should invoke this restart rather than signalling the
ABORT-CURRENT-COMMAND condition.

* edwin/prompt.scm[1.159], edwin/unix.scm[1.37]:
Change ABORT-CURRENT-COMMAND to EDITOR-ERROR.

* edwin/loadef.scm[1.22], edwin/rmailsum.scm[1.30]:
RMAIL-SUMMARY-BUFFER must be bound in order for RMAIL-CEASE-EDIT to
work correctly.

* edwin/comred.scm[1.99], edwin/editor.scm[1.228],
edwin/edwin.pkg[1.122], edwin/intmod.scm[1.59],
edwin/iserch.scm[1.18], edwin/process.scm[1.30],
edwin/prompt.scm[1.158], edwin/tterm.scm[1.22],
edwin/xterm.scm[1.41]:
* Change handling of ^G interrupts and of ABORT-CURRENT-COMMAND. Both
now use the condition system; ^G conditions are a specialization of
ABORT-CURRENT-COMMAND conditions. This change makes it easy to bind
some action to occur when a command is aborted for whatever reason.
Consequently, the procedure INTERCEPT-^G-INTERRUPTS has been
deleted.

* The inferior thread output mechanism has been modified to allow a
thread to request that the editor exit the keyboard reader and
return to the command reader. The request is phrased by the thread
output procedure returning 'FORCE-RETURN. This new mechanism is
used by the inferior REPL code to force the command reader to
immediately execute a command override for an unsolicited prompt.

* Aborting an unsolicited prompt causes the associated inferior thread
to execute ABORT->NEAREST.

* Inferior REPL buffers now initialize their working directory to the
default directory of the selected buffer at the time the REPL buffer
is created.

* Inferior REPL buffers now have their own bindings of %EXIT and QUIT
that affect only the inferior thread. In particular, %EXIT kills
the inferior thread but leaves Scheme running; QUIT does nothing.

* edwin/comint.scm[1.19]:
Add new procedure COMINT-RECORD-INPUT which is like RING-PUSH! except
that it doesn't push the string argument if it is the same as the one
on the top of the ring. This is usually desirable -- it's not
necessary to record more than one of a series of identical commands.

1993-08-02 Guillermo J. Rozas <[email protected]>

* runtime/parse.scm[14.20]:
Add a mechanism for mapping objects to the character positions in the
input port at which they started.

1993-08-01 Chris Hanson <[email protected]>

* edwin/input.scm[1.96]:
Change handling of simple events so that it does not invoke the main
keyboard-reading loop with its management of updating and messages.

* edwin/curren.scm[1.108]:
Disallow selection of a deleted screen. Unfortunately this can happen
because MWM generates these two events in sequence when the "close"
window menu entry is selected:

1. WM_DELETE_WINDOW event on the given screen.

2. FocusIn event on the given screen. Yuck! Side effect of selecting
the menu button on the screen.

* edwin/intmod.scm[1.58]:
If an inferior REPL generates an unsolicited prompt, perform the
prompt only when the REPL buffer is selected. If the buffer is not
selected, delay the prompt until selection occurs. What is still
missing is a notification mechanism to alert the user that the
inferior REPL needs attention.

* edwin/curren.scm[1.107]:
Add per-buffer selection hooks.

* edwin/edwin.pkg[1.121], edwin/input.scm[1.95]:
Extend handling of simple events to include deletion of non-selected
screens.

* edwin/comred.scm[1.98], edwin/edwin.pkg[1.120],
edwin/input.scm[1.94], edwin/prompt.scm[1.157],
edwin/tterm.scm[1.21], edwin/xterm.scm[1.40]:
Change KEYBOARD-READ, KEYBOARD-PEEK, and KEYBOARD-PEEK-NO-HANG to
intercept "update" and "resize" events and to handle them rather than
returning them. Other events with potentially troublesome actions are
returned as before. Additionally, several places where input events
were discarded have been fixed -- input events must ALWAYS be handled.

1993-07-31 Chris Hanson <[email protected]>

* runtime/rep.scm[14.32], runtime/rep.scm[14.31],
runtime/runtime.pkg[14.188], runtime/wrkdir.scm[14.7]:
Make WORKING-DIRECTORY-PATHNAME and *DEFAULT-PATHNAME-DEFAULTS* be
different for each CMDL. Change SET-WORKING-DIRECTORY-PATHNAME! so
that it only changes the working directory of the Scheme process if
the CMDL is the initial top-level REPL.

The end result of these changes is to make the working directory of an
Edwin inferior REPL buffer be independent of the global working
directory.

1993-07-30 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.57]:
Most uses of CURRENT-REPL-BUFFER should not signal an error if there
is no such buffer.

1993-07-30 Guillermo J. Rozas <[email protected]>

* edwin/dos.scm[1.11]:
File-attributes fails (returns #f) on `..' in CD file systems.
Accommodate.

* microcode/ntfs.c[1.5]:
Remove check to verify that the first entry of a directory is a
subdirectory. Root directories on FAT volumes do not have `.' and
`..' entries, so this is not guaranteed to be the case.

* microcode/ntscreen.c[1.6]:
Fix line-wrapping. It dropped characters and did not invalidate
correctly.

1993-07-29 Guillermo J. Rozas <[email protected]>

* microcode/cmpint.c[1.60]:
Trampoline headers have a different tag so the profiler can
distinguish them from ordinary cc blocks.

* microcode/cmpauxmd/hppa.m4[1.29], microcode/cmpint.c[1.59],
microcode/cmpintmd/hppa.h[1.43], microcode/comutl.c[1.23],
microcode/unxutl/Attic/ymkfile[1.71], microcode/uxtrap.c[1.22],
microcode/uxtrap.h[1.20]:
Generalize hook/builtin information for use by trap recovery and PC
sampling.

* edwin/ansi.scm[1.4]:
Add a larger set of capabilities, supported by the ANSI emulator built
into the Scheme microcode under Windows NT.

1993-07-28 Chris Hanson <[email protected]>

* runtime/infutl.scm[1.47], runtime/runtime.pkg[14.187]:
New procedure COMPILED-CODE-BLOCK/FILENAME.

1993-07-28 Guillermo J. Rozas <[email protected]>

* microcode/ntscreen.c[1.5]:
Improve Edwin redisplay speed by avoiding repeated calls to
InvalidateRect when painting, and by adding insert/delete line
capabilities.

* microcode/ntio.c[1.6]:
Eliminate spurious 0-length write messages.

1993-07-27 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.186], runtime/thread.scm[1.17]:
Add new procedure ALLOW-THREAD-EVENT-DELIVERY.

* runtime/unxprm.scm[1.25]:
Don't allocate a new result vector to pass to SELECT-REGISTRY-TEST
each time that it is called. Instead, maintain a pool of these
vectors and pick one from the pool if it's available.

1993-07-27 Guillermo J. Rozas <[email protected]>

* microcode/bchmmg.c[9.77], microcode/cmpint.c[1.58],
microcode/memmag.c[9.51], microcode/ntenv.c[1.5],
microcode/ntio.c[1.5], microcode/ntscreen.c[1.4],
microcode/ntsig.c[1.6], microcode/nttop.c[1.5],
microcode/nttrap.c[1.4], microcode/ntutl/bch-cl3.lst[1.2],
microcode/ntutl/bch-p-nt.lst[1.2], microcode/ntutl/makefile[1.5],
microcode/ntutl/scm-cl3.lst[1.2], microcode/ntutl/scm-p-nt.lst[1.2]:
NT changes:

- Abstract functionality not available in Win32s so it can be provided
in a DLL.

- Remove some fossil DOS code from ntsig.c.

- ntscreen.c can now emulate an ansi.sys terminal.

* microcode/cmpauxmd/hppa.m4[1.28]:
Fix bug. The val register was not preserved around flonum calls.

(flo:+ (flo:sin x) (flo:expt x y))

was failing because the result of flo:expt (close-coded) was left in
val around the call to sin, and the stub (and C code, potentially)
were clobbering it.

1993-07-23 Nick Papadakis <[email protected]>

* microcode/unxutl/Attic/y700.lcl[1.8]:
Added FLOATING_VECTOR_ARG to support vectors of double floats
Added FFI stuf to ymake.lcl for 700's

* microcode/prims.h[9.42]:
Added FLOATING_VECTOR_ARG to support vectors of double floats

1993-07-22 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.119]:
Change corresponding to most recent change to "tterm.scm".

* edwin/dirunx.scm[1.3], edwin/unix.scm[1.36]:
"gzip" now uses ".gz" suffix instead of ".z"; make corresponding
changes to Edwin.

1993-07-21 Guillermo J. Rozas <[email protected]>

* microcode/ntfs.c[1.4]:
Fix wrong syscall name.

* microcode/ntgui.c[1.4], microcode/ntio.c[1.4],
microcode/ntscreen.c[1.3], microcode/ntscreen.h[1.4],
microcode/ntsig.c[1.5]:
Changes to make terminal-based Edwin work.

* microcode/ntutl/makefile[1.4]:
Use GUI interface, and not console interface.

1993-07-20 Guillermo J. Rozas <[email protected]>

* compiler/machines/mips/machin.scm[1.13],
compiler/machines/mips/rules1.scm[1.6],
compiler/machines/mips/rules3.scm[1.17],
compiler/machines/mips/rulflo.scm[1.7],
compiler/machines/mips/rulrew.scm[1.6]:
Update to match new RTL syntax, and add floating-point vector support.

1993-07-19 Chris Hanson <[email protected]>

* microcode/x11term.c[1.22]:
When drawing cursor on highlighted text, and the cursor color is the
same as the foreground color, invert the cursor so that it appears
different from the highlighting.

1993-07-18 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dosconio.c[1.11], microcode/ntgui.c[1.3],
microcode/ntsig.c[1.4], runtime/runtime.pkg[14.185]:
Allow DOS and NT to share bands.

* microcode/ntutl/makefile[1.3]:
Update unconfig.

* microcode/ntutl/config.bat[1.3]:
Copy setup.bat out of ntutl.

* microcode/outf.c[1.3]:
The WINNT compilers do not pre-define __STDC__.

* microcode/ntenv.c[1.4]:
Add missing semi-colon.

1993-07-17 Chris Hanson <[email protected]>

* microcode/ux.h[1.49]:
Eliminate #undef's for sony that aren't needed now and cause warnings.

1993-07-17 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rulfix.scm[1.27]:
Fix yet another register allocation bug in division.

* microcode/Attic/dostrap.c[1.4]:
Integer divide by zero was not being signalled correctly.

1993-07-16 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dosconio.c[1.10]:
Set up an appropriate interrupt mask for the DOS high-priority
interrupt.

* compiler/etc/comfiles.scm[1.4], compiler/etc/disload.scm[1.7]:
Kludge to make defaulting of directory work under DOS (and NT?).

* compiler/machines/i386/decls.scm[1.5],
compiler/machines/i386/lapgen.scm[1.23],
compiler/machines/i386/machin.scm[1.18],
compiler/machines/i386/rules1.scm[1.18],
compiler/machines/i386/rules2.scm[1.6],
compiler/machines/i386/rules3.scm[1.26],
compiler/machines/i386/rulfix.scm[1.26],
compiler/machines/i386/rulflo.scm[1.20],
compiler/machines/i386/rulrew.scm[1.12]:
Update back end to reflect changes to the RTL and to handle
floating-point vectors.

* edwin/edwin.pkg[1.118.1.2]:
tterm needs have-select? from the runtime system.

* edwin/tterm.scm[1.20]:
Make read-event work on systems without select.

* microcode/Attic/dostop.c[1.6], microcode/nttop.c[1.4]:
Update the copyright.

* edwin/edwin.pkg[1.118.1.1]:
Merge with 1.118.

* edwin/dosproc.scm[1.3]:
Add new dummy predicates needed by the rest of edwin.

1993-07-09 Guillermo J. Rozas <[email protected]>

* compiler/rtlbase/rtlcon.scm[4.27], compiler/rtlgen/rgcomb.scm[4.20],
compiler/rtlgen/rgrval.scm[4.22]:
Fix a bug in closure bumping. The code was written in a hybrid of
locative-level rtl and "real" rtl.

1993-07-08 Guillermo J. Rozas <[email protected]>

* compiler/rtlgen/rgcomb.scm[4.19]:
Fix bug in last edit. I used rtl:make-offset instead of
rtl:locative-offset.

* compiler/machines/bobcat/lapgen.scm[4.49]:
Fix lurking bug found in the 386 back end.

1993-07-07 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/compiler.pkg[1.16],
compiler/machines/mips/compiler.pkg[1.14]:
Export rtl:bump-closure.

* compiler/machines/i386/dassm1.scm[1.6],
compiler/machines/mips/dassm1.scm[1.3]:
Improve disassembler output of compiled code blocks.

* runtime/runtime.pkg[14.184], runtime/thread.scm[1.16]:
Don't use select-registry primitives unless the operating system
supports the `select' system Call.

* compiler/machines/spectrum/rulrew.scm[1.11]:
Fix bug with unexpected constants appearing in the middle of
expressions.

* microcode/Attic/dosenv.c[1.5]:
Missing arg list.

1993-07-06 Chris Hanson <[email protected]>

* edwin/comred.scm[1.97]:
Try not to clear the message unnecessarily when processing input
events.

1993-07-06 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/rules3.scm[4.40]:
Fix an out-of-range error because the @PCRXS addressing mode has a
limited range.

* compiler/machines/bobcat/compiler.pkg[1.44],
compiler/machines/bobcat/lapgen.scm[4.48],
compiler/machines/bobcat/machin.scm[4.31],
compiler/machines/bobcat/make.scm-68040[4.89],
compiler/machines/bobcat/rules1.scm[4.38],
compiler/machines/bobcat/rules2.scm[4.14],
compiler/machines/bobcat/rules3.scm[4.39],
compiler/machines/bobcat/rules4.scm[4.14],
compiler/machines/bobcat/rulrew.scm[1.6]:
- Update to match change in RTL introduced to improve array indexing.
- Add floating-vector support.
- Add top-level code compression support.

1993-07-03 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/dassm1.scm[4.18]:
Write block description more clearly.

* compiler/rtlopt/rcompr.scm[1.14]:
Update a use of rtl:make-offset that I missed in the last set of
edits.

1993-07-02 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/dassm2.scm[4.20]:
bit-string-andc-bang cannot be integrated where it is used.
Fix the heuristic for detection of external labels and pc-relative
addressing.

1993-07-01 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.183], runtime/thread.scm[1.15]:
Reimplement `thread-dead?' because Edwin needs it.

* microcode/Attic/dosenv.c[1.4], microcode/ntenv.c[1.3],
microcode/osenv.h[1.4], microcode/prosenv.c[1.9],
microcode/uxenv.c[1.11]:
Change interfaces of OS_real_time_clock and OS_process_clock to return
double instead of clock_t. This combined with changes in the
implementations of these procedures should prevent wraparound of these
clocks.

* runtime/debug.scm[14.34], runtime/error.scm[14.34],
runtime/runtime.pkg[14.182], runtime/thread.scm[1.14]:
Added mechanism to stop threads and restart them. When a
derived-thread error is signalled, the signalling thread stops itself
to allow debugging to occur. The debugger recognizes such stopped
threads and restarts them appropriately when the user requests a
continuation.

Also changed the handling of the thread timer to vary the period of
the timer in cases where the next desired timer event is longer than
the default timer interval.

1993-07-01 Guillermo J. Rozas <[email protected]>

* compiler/etc/disload.scm[1.6]:
Addressing-granularity means something different.

* compiler/etc/disload.scm[1.5], compiler/etc/disload.scm[1.4]:
Fix typo in last edit.

* compiler/etc/disload.scm[1.3]:
Compute addressing-granularity rather than default to 4.

* compiler/machines/spectrum/rulflo.scm[4.38]:
Fix a register allocator bug in float-load/offset, and add yet another
floating-point pattern.

* compiler/machines/spectrum/compiler.pkg[1.42]:
Changes to support better array indexing.

* compiler/rtlopt/rerite.scm[1.3]:
Add rewrite rule for instances of byte-offset-address used for closure
bumping.

* compiler/rtlopt/rcse1.scm[4.22], compiler/rtlopt/rcsesr.scm[4.3]:
Reflect changes to OFFSET and friends.

* compiler/rtlopt/rcompr.scm[1.13]:
Handle some more cases.

* compiler/rtlgen/rgcomb.scm[4.18], compiler/rtlgen/rgrval.scm[4.21]:
rtl offsets have changed.

* compiler/rtlgen/opncod.scm[4.60]:
Add open coding for
floating-vector primitives
vector-cons-style primitives
flonum-atan2

* compiler/rtlbase/rtlcon.scm[4.26], compiler/rtlbase/rtlexp.scm[4.19],
compiler/rtlbase/rtlty1.scm[4.21], compiler/rtlbase/rtlty2.scm[4.12]:
Diddle with locatives to allow index addressing modes.

* compiler/machines/spectrum/rulrew.scm[1.10]:
Fix a common float reference.

* compiler/machines/spectrum/rulflo.scm[4.37]:
Add floating-point vector support, and support for trig and friends.

* compiler/machines/spectrum/rulfix.scm[4.45]:
Add handlers for a few common cases.

* compiler/machines/spectrum/rules3.scm[4.40]:
Improve primitive calling code.
Handle allocation primitives.

* compiler/machines/spectrum/rules1.scm[4.35]:
Update rules to handle new OFFSET and friends RTL addressing modes.
Add improved generation of common patterns.

* compiler/machines/spectrum/rgspcm.scm[4.3]:
Add handlers for string-allocate, vector-cons, and
floating-vector-cons.

* compiler/machines/spectrum/machin.scm[4.29]:
More primitives are handled.
Redo floating-point sizing.

* compiler/machines/spectrum/lapopt.scm[1.13]:
Teach the peephole optimizer to handle DEPI, and friends, and some
FLOPs.

* compiler/machines/spectrum/lapgen.scm[4.44]:
Add new hooks (invoke-primitive, allocation and flonum primitives).
Reorder registers so priority is given to the C callee saves
registers.

* compiler/base/switch.scm[4.23]:
Add compiler:assume-safe-fixnums?

* compiler/base/make.scm[4.99]:
New array indexing code.
Open coding of floating-point vector operations.
Special handling of string-allocate, vector-cons, and floating-vector-cons.
Special handling of flo:sin, etc. on the Snakes.
Better primitive calling on the Snakes.

* compiler/base/macros.scm[4.13]:
Fix bug in rtl-common which introduced a bound-variable conflict if a
slot has the same as the item being defined.

* compiler/back/lapgn2.scm[1.20]:
Fix bug in load-machine-register!: If machine-register is a
floating-point register, it is not OK to ask for any alias.

* compiler/etc/disload.scm[1.2]:
Allow disload to load into a compiler-less image.

* compiler/machines/spectrum/dassm1.scm[4.18]:
Pretty up the output.

1993-06-30 Guillermo J. Rozas <[email protected]>

* compiler/etc/comfiles.scm[1.3]:
Make check-stage more tolerant of missing files.

* microcode/cmpauxmd/hppa.m4[1.27], microcode/cmpintmd/hppa.h[1.42]:
Add hooks for faster primitive invocation, faster allocation of
vectors, strings, and floating-point vectors, and for non-boxing
flonum operations.

1993-06-29 Chris Hanson <[email protected]>

* runtime/intrpt.scm[14.15]:
Eliminate unnecessary declaration.

* sf/gconst.scm[4.16]:
Rename global-2 interrupt bit to after-gc, and add new mask timer-ok.

* microcode/unxutl/Attic/makefile[1.27]:
Change *.touch to *.tch in "clean" rule.

* runtime/boot.scm[14.6], runtime/gc.scm[14.9],
runtime/gcdemn.scm[14.6], runtime/hash.scm[14.5],
runtime/intrpt.scm[14.14], runtime/runtime.pkg[14.181],
runtime/version.scm[14.163]:
This runtime system requires microcode version 11.133 or later.

Implement a new interrupt that is signalled after each GC and which
runs at roughly the same priority as character interrupts. All GC
daemons, with the exception of the object hash daemon, run in this
interrupt handler rather than during the GC proper. This allows GC
daemons to allocate storage and prevents GC daemons from running
during critical sections.

* microcode/boot.c[9.81], microcode/fixobj.h[9.32],
microcode/intrpt.h[1.12], microcode/utils.c[9.59],
microcode/version.h[11.133]:
Redefine the GLOBAL-2 interrupt bit to be the interrupt that is
signalled after each GC.

Change the interrupt code to allow the runtime system to specify what
interrupt mask should be installed immediately before an interrupt
handler is invoked. This allows the runtime system to override the
simple prioritized masking being performed by the microcode.

* microcode/utabmd.scm[9.67]:
Add slot in fixed objects vector for interrupt masks.

1993-06-29 Guillermo J. Rozas <[email protected]>

* compiler/machines/C/machin.scm[1.3],
compiler/machines/i386/machin.scm[1.17],
compiler/machines/mips/machin.scm[1.12],
compiler/machines/sparc/machin.scm[1.2],
compiler/machines/vax/machin.scm[4.12]:
Disable some primitives until the back end learns how to handle them.

* compiler/machines/alpha/machin.scm[1.6]:
Change flonum addressing units.

* compiler/machines/alpha/machin.scm[1.5],
compiler/machines/bobcat/machin.scm[4.30]:
Disable some primitive open coding until the back end is taught how to
do it.

* compiler/base/scode.scm[4.9], compiler/fgopt/simapp.scm[4.7]:
Fix shadowing problem.

* compiler/fgopt/simapp.scm[4.6]:
Fix check that only allows primitives and compiled procedures.
Any procedures are legal here.

1993-06-28 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/ynws3250.lcl[1.3]:
Define "clean.world".

* microcode/m/Attic/mips.h[1.8]:
Use "-std" switch to make compiler ANSI.

* microcode/outf.c[1.2]:
Generalize variable number of arguments code to work in non-ANSI
implementations.

* microcode/outf.h[1.3]:
Don't include <stdarg.h> because it might not be available in a given
implementation. Don't declare voutf because it's not referred to and
it requires <stdarg.h>.

* microcode/ux.h[1.48]:
On Sony, <unistd.h> defines ioctl.

* microcode/bchdrn.c[1.6]:
Fix incorrect declaration: static declarations cannot be local, and
ANSI declaration arglists cannot be empty.

1993-06-25 Guillermo J. Rozas <[email protected]>

* runtime/packag.scm[14.16]:
Finish fixing the problem.

* runtime/packag.scm[14.15]:
Fix spurious I/O introduced in the last edit.

* compiler/machines/spectrum/lapopt.scm[1.12]:
Fix problem: Nullified branch instruction cannot be moved before an
instruction that the branch tensioner may expand into multiple
instructions.

* microcode/unxutl/Attic/y700.lcl[1.7]:
Minor problems in last update.

* runtime/version.scm[14.162]:
Make the order of invocation of gc-daemons the same as the order of
"declaration", and make the rehash daemon be the first.

* runtime/gcdemn.scm[14.5]:
Change gc-daemons and secondary-gc-daemons into queues so that the
daemons are invoked in the order in which they are "declared".

* runtime/queue.scm[14.3]:
Add queue->list and queue->list/unsafe operations.

* runtime/make.scm[14.47]:
Reorder initializations so that hash is initialized before
primitive-io, to make the rehash GC daemon the first one to execute.

* microcode/utils.c[9.58]:
Reorder some stuff so that when a boot-time error fails because of an
unbound variable, the stack trace prints the name of the variable.

1993-06-24 Guillermo J. Rozas <[email protected]>

* microcode/unxutl/Attic/ymkfile[1.70]:
Fix some capitalization problems.

* microcode/intext.c[1.4]:
Fix copyright.

* microcode/boot.c[9.80]:
define FILE_READABLE.

* microcode/primutl.c[9.60]:
Fix bug in search_for_primitive. If the second allocate_marked_vector
call aborted because of a GC, the global variables were left in an
inconsistent state.

* microcode/unxutl/Attic/ymkfile[1.69]:
Fix bug if COMPILED_OBJECTS is empty.

* microcode/dosutl/Attic/makefile[1.6], microcode/ntutl/makefile[1.2]:
Rename hard-params to hard-par, and improve "make clean"

* microcode/dosutl/Attic/config.bat[1.2],
microcode/ntutl/config.bat[1.2]:
Remove echo.

* microcode/unxutl/Attic/cf-dist.h[1.16]:
Update some defaults.

* microcode/outf.h[1.2]:
Add ansidecl.h to define DOTS and friends.

* microcode/s/Attic/dos.m4[1.6]:
Fix comment.

* microcode/s/Attic/bsd4-2.h[1.7], microcode/s/Attic/bsd4-3.h[1.5],
microcode/s/Attic/irix4.h[1.3], microcode/s/Attic/mach4-3.h[1.3],
microcode/s/Attic/newsos5.h[1.4], microcode/s/Attic/nextos.h[1.6],
microcode/s/Attic/sunos3.h[1.4], microcode/s/Attic/sunos4.h[1.4],
microcode/s/Attic/sysv3.h[1.4], microcode/s/Attic/sysv4.h[1.3],
microcode/s/Attic/ultrix.h[1.14], microcode/s/Attic/ultrix.m4[1.6],
microcode/s/Attic/umax.h[1.5]:
Fix bug in automatic edit.

* microcode/s/Attic/dos.m4[1.5]:
Change RCS header.

* microcode/copyrigh.c[1.2]:
Change to new format

* microcode/Attic/dosasutl.asm[1.3], microcode/Attic/dosexcp.h[1.3],
microcode/Attic/dosfg.c[1.3], microcode/Attic/dosfile.c[1.2],
microcode/Attic/dosi10.asm[1.2], microcode/Attic/dosio.h[1.2],
microcode/Attic/doskbd.h[1.2], microcode/Attic/dosselec.h[1.2],
microcode/Attic/dosterm.h[1.2], microcode/Attic/dostop.h[1.2],
microcode/Attic/dostrap.h[1.2], microcode/Attic/dostterm.c[1.2],
microcode/Attic/dosutil.c[1.2], microcode/Attic/dosutil.h[1.2],
microcode/array.h[9.35], microcode/bchdrn.h[1.5],
microcode/bchgcl.c[9.45], microcode/bchpur.c[9.59],
microcode/bignmint.h[1.3], microcode/bigprm.c[1.3],
microcode/bkpt.c[9.28], microcode/bkpt.h[9.29],
microcode/bltdef.h[1.3], microcode/breakup.c[9.24],
microcode/char.c[9.30], microcode/cmpint.h[10.5],
microcode/comlin.c[1.8], microcode/comlin.h[1.6],
microcode/copyrigh.c[1.1], microcode/critsec.h[1.3],
microcode/dfloat.c[1.4], microcode/dmpwrld.c[9.37],
microcode/dstack.h[1.6], microcode/edwin.h[1.6],
microcode/extern.c[9.33], microcode/fixobj.h[9.31],
microcode/flonum.c[9.40], microcode/future.c[9.28],
microcode/futures.h[9.28], microcode/generic.c[9.37],
microcode/gpio.c[1.10], microcode/history.h[9.28],
microcode/hunk.c[9.28], microcode/image.h[9.24],
microcode/intercom.c[9.29], microcode/load.c[9.32],
microcode/locks.h[9.25], microcode/lookprm.c[1.9],
microcode/lookup.h[9.48], microcode/missing.c[9.30],
microcode/osctty.h[1.3], microcode/osfile.h[1.2],
microcode/osproc.h[1.8], microcode/ospty.h[1.3],
microcode/ossig.h[1.3], microcode/ostop.h[1.4],
microcode/ostty.c[1.3], microcode/ostty.h[1.4],
microcode/ppband.c[9.45], microcode/prim.c[9.36],
microcode/prim.h[9.43], microcode/prims.h[9.41],
microcode/prmcon.h[1.2], microcode/prosfile.c[1.6],
microcode/prosproc.c[1.13], microcode/prospty.c[1.2],
microcode/prostty.c[1.5], microcode/pruxfs.c[9.51],
microcode/pruxsock.c[1.7], microcode/psbtobin.c[9.49],
microcode/regex.c[1.13], microcode/regex.h[1.6],
microcode/rgxprim.c[1.10], microcode/sample.c[9.25],
microcode/scode.h[9.25], microcode/sdata.h[9.32],
microcode/sgraph.h[1.6], microcode/starbase.c[1.6],
microcode/starbasx.c[1.5], microcode/step.c[9.31],
microcode/string.c[9.36], microcode/syntax.c[1.22],
microcode/syntax.h[1.8], microcode/trap.h[9.43],
microcode/tterm.c[1.3], microcode/typename.txt[1.3],
microcode/usrdef.h[9.39], microcode/uxctty.c[1.12],
microcode/uxfile.c[1.7], microcode/uxio.h[1.3],
microcode/uxproc.c[1.15], microcode/uxproc.h[1.4],
microcode/uxsock.h[1.5], microcode/uxterm.h[1.4],
microcode/uxtop.h[1.2], microcode/uxtty.c[1.9],
microcode/uxutil.c[1.5], microcode/uxutil.h[1.2],
microcode/winder.h[9.25], microcode/x11.h[1.15],
microcode/x11color.c[1.4], microcode/x11graph.c[1.30],
microcode/x11term.c[1.21], microcode/zones.h[9.25]:
Fixing the RCS header

* microcode/interp.c[9.76]:
Remove left-over printfs.

* microcode/cmpauxmd/vax.m4[1.2],
microcode/dosutl/Attic/bch-prm.lst[1.5],
microcode/dosutl/Attic/scm-prm.lst[1.5],
microcode/s/Attic/bsd4-2.h[1.6], microcode/s/Attic/bsd4-3.h[1.4],
microcode/s/Attic/irix4.h[1.2], microcode/s/Attic/mach4-3.h[1.2],
microcode/s/Attic/newsos5.h[1.3], microcode/s/Attic/nextos.h[1.5],
microcode/s/Attic/sunos3.h[1.3], microcode/s/Attic/sunos4.h[1.3],
microcode/s/Attic/sysv3.h[1.3], microcode/s/Attic/sysv4.h[1.2],
microcode/s/Attic/ultrix.h[1.13], microcode/s/Attic/ultrix.m4[1.5],
microcode/s/Attic/umax.h[1.4]:
Fix RCS header.

* microcode/Attic/dosint10.c[1.8]:
Flush spurious ^Z at the end of the file.

* microcode/Attic/dosio.c[1.6], microcode/Attic/msdos.h[1.5],
microcode/Attic/oscond.h[1.14], microcode/Attic/posixtyp.h[1.8],
microcode/ansidecl.h[1.3], microcode/bchdmp.c[9.70],
microcode/bchgcc.h[9.52], microcode/bchmmg.c[9.76],
microcode/bchutl.c[1.3], microcode/bignum.c[9.40],
microcode/boot.c[9.79], microcode/cmpauxmd/i386.m4[1.29],
microcode/cmpgc.h[1.24], microcode/cmpint.c[1.57],
microcode/cmpintmd/alpha.h[1.5], microcode/cmpintmd/c.h[1.3],
microcode/cmpintmd/hppa.h[1.41], microcode/cmpintmd/i386.h[1.21],
microcode/cmpintmd/mc68k.h[1.35], microcode/cmpintmd/mips.h[1.18],
microcode/cmpintmd/vax.h[1.8], microcode/debug.c[9.44],
microcode/dosutl/Attic/bch-ztc.lst[1.6],
microcode/dosutl/Attic/makefile[1.5],
microcode/dosutl/Attic/scm-ztc.lst[1.6], microcode/error.c[1.5],
microcode/extern.h[9.50], microcode/fasload.c[9.68],
microcode/findprim.c[9.47], microcode/gc.h[9.33],
microcode/gccode.h[9.48], microcode/gcloop.c[9.41],
microcode/hppacach.c[1.9], microcode/hppanwca.c[1.2],
microcode/interp.c[9.75], microcode/interp.h[9.37],
microcode/liarc.h[1.2], microcode/lookup.c[9.52],
microcode/memmag.c[9.50], microcode/option.c[1.33],
microcode/os.h[1.4], microcode/osscheme.c[1.7],
microcode/osscheme.h[1.8], microcode/prmcon.c[1.2],
microcode/psbmap.h[9.39], microcode/ptrvec.c[1.2],
microcode/purify.c[9.49], microcode/purutl.c[9.44],
microcode/returns.h[9.41], microcode/scheme.h[9.35],
microcode/sgraph_a.c[1.15], microcode/sgx.c[1.8],
microcode/sgx11.c[1.3], microcode/stack.h[9.34],
microcode/term.c[1.6], microcode/transact.c[1.2],
microcode/unxutl/Attic/cf-dist.h[1.15],
microcode/unxutl/Attic/config[1.19],
microcode/unxutl/Attic/makefile[1.26],
microcode/unxutl/Attic/y300.lcl[1.24],
microcode/unxutl/Attic/y700.lcl[1.6],
microcode/unxutl/Attic/y800.lcl[1.2],
microcode/unxutl/Attic/ymkfile[1.68],
microcode/unxutl/Attic/ynws3250.lcl[1.2], microcode/utils.c[9.57],
microcode/ux.h[1.47], microcode/uxsig.c[1.26],
microcode/version.h[11.132], microcode/wind.c[1.5],
microcode/xdebug.c[9.32]:
Global NT merge.

* microcode/nt.h[1.3], microcode/ntgui.h[1.3], microcode/ntio.h[1.4],
microcode/ntscreen.h[1.3]:
Fix inclusion symbol.

* microcode/ntterm.h[1.3], microcode/nttop.h[1.3]:
Fix date, RCS header, and inclusion symbol.

* microcode/ntsig.c[1.3], microcode/ntsys.h[1.2]:
Fix date and inclusion symbol.

* microcode/ntscreen.c[1.2], microcode/ntscreen.h[1.2]:
Add copyright and RCS header.

* microcode/ntio.c[1.3], microcode/ntio.h[1.3], microcode/ntsys.c[1.2],
microcode/nttop.c[1.3], microcode/nttrap.c[1.3],
microcode/nttrap.h[1.3], microcode/nttty.c[1.3]:
Fix date.

* microcode/ntgui.c[1.2], microcode/ntgui.h[1.2]:
Add copyright.

* microcode/ntfile.c[1.3], microcode/ntfs.c[1.3],
microcode/nttterm.c[1.2]:
Fix date and RCS header.

* microcode/ntasutl.asm[1.2]:
Fix RCS header and date.

* microcode/ntenv.c[1.2], microcode/ntfile.c[1.2],
microcode/ntfs.c[1.2], microcode/ntio.c[1.2], microcode/ntio.h[1.2],
microcode/ntsig.c[1.2], microcode/ntterm.h[1.2],
microcode/nttop.c[1.2], microcode/nttop.h[1.2],
microcode/nttrap.c[1.2], microcode/nttrap.h[1.2],
microcode/nttty.c[1.2]:
Global NT merge

* microcode/nt.h[1.2]:
First NT global merge.

1993-06-18 Guillermo J. Rozas <[email protected]>

* runtime/unpars.scm[14.31]:
Teach the unparser to print floating-point vectors.

1993-06-17 Guillermo J. Rozas <[email protected]>

* compiler/etc/comcmp.scm[1.4]:
Make it handle the new constants used with DEFINE-MULTIPLE.

1993-06-16 Guillermo J. Rozas <[email protected]>

* runtime/io.scm[14.35]:
Fix bug in translated output where by doing a newline when the output
buffer is full would cause an infinite loop.

1993-06-15 Guillermo J. Rozas <[email protected]>

* microcode/unxutl/Attic/makefile[1.25]:
Remove compinit.h .

* microcode/Attic/config.h[9.80], microcode/Attic/config.h[9.79]:
Add support for C back end.

* microcode/cmpauxmd/c.c[1.3]:
Some versions of realloc (e.g. SunOS4) do not understand
realloc(NULL, size).

* microcode/ux.h[1.46], microcode/uxsock.c[1.11]:
SunOS 4 conditionalization.

* microcode/unxutl/Attic/ymkfile[1.67]:
Add liarc.touch to the compinit.h dependencies and construction.

1993-06-12 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/hppa.h[1.40]:
GCC now supports shared libraries in HP-UX.
The closure hack has to be used with it as well.

1993-06-11 Jason Wilson <[email protected]>

* compiler/machines/C/TODO[1.3]:
add two more entries.

1993-06-10 Guillermo J. Rozas <[email protected]>

* compiler/machines/C/lapgen.scm[1.4]:
Fix renamed variables.

* compiler/machines/C/lapgen.scm[1.3]:
Fix new problems with the "register allocator". Floating-point values
cannot be allocated to ordinary variables and viceversa.

* runtime/packag.scm[14.14]:
Fix incorrect variable name.

* runtime/packag.scm[14.13], runtime/runtime.pkg[14.180],
runtime/runtime.pkg[14.179]:
Add support for code compiled to C.

* compiler/machines/C/rulrew.scm[1.2]:
Fix incorrect use of make-machine-register. It should be
make-machine-constant.

1993-06-10 Jason Wilson <[email protected]>

* compiler/machines/C/machin.scm[1.2]:
Add interpreter register FREE.

* compiler/machines/C/cout.scm[1.4]:
Handle random non-pointers with TRUE and FALSE tags.

* compiler/machines/C/cout.scm[1.3]:
Handle false and empty list as pathname directories.

1993-06-09 Jason Wilson <[email protected]>

* compiler/machines/C/TODO[1.2], microcode/cmpintmd/c.h[1.2]:
Add correct date.

* microcode/compinit.c[1.2], microcode/comutl.c[1.22],
microcode/unxutl/Attic/ymkfile[1.66]:
Merge in C back end changes.

* microcode/boot.c[9.78], microcode/const.h[9.42],
microcode/option.c[1.32], microcode/unxutl/Attic/makefile[1.24]:
Add support for booting the C back end.

* microcode/unxutl/Attic/makefile[1.23]:
ymake.local automatically generated to avoid standard loss.

* compiler/machines/C/lapgen.scm[1.2]:
Fix standard-target! and standard-move-to-target!

* compiler/machines/C/cout.scm[1.2]:
Make sure that there is a valid pathname directory before taking its
last component.

* microcode/cmpauxmd/c.c[1.2]:
Add scheme_hook_{low,high}, needed by HP-PA trap handling code.

* runtime/make.scm[14.46]:
Change "LiarC_" to "runtime_"

1993-06-08 Guillermo J. Rozas <[email protected]>

* microcode/hppacach.c[1.8]:
Remove noise when printing.

* microcode/unxutl/Attic/makefile[1.22]:
Add top-level entry for hppacache.

* microcode/hppacach.c[1.7]:
Update date.

* microcode/unxutl/Attic/ymkfile[1.65], microcode/ux.h[1.45]:
Linux changes.

* microcode/intext.h[1.4]:
Preserve errno around dstack operations.

* microcode/hppacach.c[1.6]:
Rename -update option to -add.
Add -replace option.

* microcode/hppacach.c[1.5]:
Fix bug. Missing &. I wonder how this ever worked.

1993-06-04 Chris Hanson <[email protected]>

* microcode/hppacach.c[1.4]:
Supply missing argument to fprintf.

* microcode/hooks.c[9.51]:
When stack is erased by WITHIN-CONTROL-POINT, the history information
stored in Prev_Restore_History_* must be reset.

1993-04-29 Chris Hanson <[email protected]>

* runtime/intrpt.scm[14.13]:
Change keyboard interrupt code so that all interrupt activity occurs
inside the event transmitted to the console port's owner. This stuff
can't be done directly by the interrupt handler because it can be
executed when there is no thread at all.

1993-04-28 Chris Hanson <[email protected]>

* edwin/xterm.scm[1.39]:
Don't use BLOCK-THREAD-EVENTS to prevent the previewer from running --
there's a window in which an event can be delivered, causing a
character to be queued; but READ-EVENT doesn't look at the queue after
it's in that state.

* runtime/thread.scm[1.12]:
Fix typo in last change.

1993-04-28 Hal Abelson <[email protected]>

* runtime/thread.scm[1.13]:
Always restore state of BLOCK-EVENTS? flag in a thread when returning
from SUSPEND-CURRENT-THREAD.

1993-04-27 Chris Hanson <[email protected]>

* microcode/array.c[9.45]:
Delete extraneous semicolon.

* microcode/m/Attic/hp9k300.h[1.11], microcode/m/Attic/hp9k400.h[1.7]:
Update for HP-UX 9.0.

* microcode/uxio.c[1.29], microcode/uxio.c[1.28]:
Fix typo.

* microcode/x11base.c[1.50]:
Fix bug caused by error in Xlib man page (and all of the books I've
seen too): Xlib IO error handlers take only one arg, not two.

* microcode/uxio.c[1.27]:
Fix oversight in UX_select_input that was detected by C compiler.

* edwin/editor.scm[1.227], edwin/edwin.pkg[1.118],
edwin/intmod.scm[1.56], edwin/make.scm[3.78],
edwin/process.scm[1.29], edwin/tterm.scm[1.19],
edwin/xterm.scm[1.38]:
These changes require microcode 11.131 and runtime 14.161. The
changes are a redesign of the keyboard input, subprocess, and inferior
thread communication mechanisms to use the new `select' interface
support. The changes should not be visible to users or customizers.

* edwin/fileio.scm[1.117]:
Use CHANNEL-READ-BLOCK instead of CHANNEL-READ.

* runtime/io.scm[14.34], runtime/runtime.pkg[14.177],
runtime/thread.scm[1.10], runtime/unxprm.scm[1.24],
runtime/version.scm[14.161], runtime/x11graph.scm[1.28]:
This runtime requires microcode version 11.131 or later. Edwin
versions prior to 3.78 will not work correctly with this runtime.

The aim of these changes is to provide a central mechanism to detect
input on all input channels, and thus to prevent a single thread from
performing a blocking input operation that locks out other threads
that can do useful work. Now, in places where a thread would block on
an input device, it instead registers its interest in the device
with a centralized registry, and suspends. If all threads in the
system are suspended, then Scheme blocks by calling `select' and
waiting for something interesting to happen.

* Introduce new procedures that use the `select' system call to
provide a mechanism to monitor input availability on many input
devices simultaneously:

ADD-TO-SELECT-REGISTRY!
CHANNEL-DESCRIPTOR-FOR-SELECT
DEREGISTER-INPUT-THREAD-EVENT
MAKE-SELECT-REGISTRY
PERMANENTLY-REGISTER-INPUT-THREAD-EVENT
REGISTER-INPUT-THREAD-EVENT
REMOVE-FROM-SELECT-REGISTRY!
SELECT-DESCRIPTOR
SELECT-REGISTRY-TEST
TEST-FOR-INPUT-ON-CHANNEL
TEST-FOR-INPUT-ON-DESCRIPTOR

These procedures require the operating system to support `select' or
some equivalent. Calling them in another operating system, e.g.
DOS, will cause an error to be signalled.

* Delete old `select' mechanism procedures which are no longer used or
supported (these will be deleted from the microcode in the future):

CHANNEL-REGISTER
CHANNEL-UNREGISTER
CHANNEL-REGISTERED?
CHANNEL-SELECT-THEN-READ

* Modify CHANNEL-READ to automatically call TEST-FOR-INPUT-ON-CHANNEL
if the `select' system call is supported by the operating system.
One consequence of this is that CHANNEL-READ can return #F for
channels that are in "blocking" mode; if you don't want #F you must
call CHANNEL-READ-BLOCK instead (this was always a good idea
anyway).

* Change X graphics devices to use the new select machinery to preview
the event stream from the X server.

--------------------
The following changes are not part of the general aim stated above,
although most of them either derive from it or support it:

* Add new procedures to the "threads" package: (THREADS-LIST) returns
a list of all thread objects, including dead threads, that haven't
yet been garbage collected. (THREAD-EXECUTION-STATE thread) returns
the "execution state" of a thread, a symbol.

* Add code to the threads package that attempts to clean up all
attachments of the thread when it is exited. This is a
generalization of previous patches generated by GJR and GJS for
6.001.

* Plug several holes in the thread event delivery mechanism which
allowed the threads package to get into states where events were not
delivered to their threads.

* SUSPEND-CURRENT-THREAD now returns the event that caused the thread
the be resumed; previously it had an unspecified value. If several
events are delivered before resumption, the event returned is the
first one that is not #F, or #F if all of the events were #F.

* Fix several typos that caused errors when generating reports for
conditions in the threads package.

* runtime/error.scm[14.33]:
Fix two bugs related to inheritance: CONDITION-PREDICATE and
CONDITION-ACCESSOR did not allow a condition of an inherited type as
an argument, and MAKE-CONDITION-TYPE would incorrectly compute the
number of fields in a condition type which overrode one of the field
names in its generalization.

* microcode/pruxio.c[1.4], microcode/uxio.c[1.26],
microcode/uxselect.h[1.5], microcode/version.h[11.131],
microcode/x11base.c[1.49]:
These changes affect any code using the SELECT-REGISTRY-TEST
primitive. Runtime 14.161 requires this microcode revision or later,
but older bands can run over this microcode.

* Change interface to SELECT-REGISTRY-TEST. Order or second and third
arguments is reversed. Third argument is changed from a select
registry to a vector. Primitive returns a nonnegative integer
indicating the number of descriptors that were stored in the vector,
or a negative integer indicating that nothing is stored and that
another interesting condition holds.

* Add new primitive SELECT-DESCRIPTOR, a simplified version of
SELECT-REGISTRY-TEST that works for a single descriptor and does not
require consing in the interface.

1993-04-27 Hal Abelson <[email protected]>

* runtime/runtime.pkg[14.178], runtime/thread.scm[1.11]:
Add new procedures REGISTER-TIMER-THREAD and DEREGISTER-TIMER-THREAD
to allow asynchronous delivery of timer events.

1993-04-20 Jason Wilson <[email protected]>

* edwin/tagutl.scm[1.50]:
"Fixed" a bug in tags-search having to do with the case-sensitivty
arguement. we now accept this argument but do nothing with it. This
should be fixed at some point.

1993-04-19 Chris Hanson <[email protected]>

* microcode/Attic/dosio.c[1.5], microcode/osterm.h[1.10],
microcode/prosterm.c[1.13], microcode/uxterm.c[1.22],
runtime/io.scm[14.33], runtime/runtime.pkg[14.176]:
Add primitives to set the baud rate of a terminal.

1993-04-15 Chris Hanson <[email protected]>

* edwin/dirunx.scm[1.2], edwin/unix.scm[1.35]:
Add support for "gzipped" files.

* microcode/unxutl/Attic/makefile[1.21]:
Expand rule for "locked" to include subdirectories.

1993-04-06 Chris Hanson <[email protected]>

* microcode/Attic/dosio.c[1.4], microcode/osio.h[1.8],
microcode/prosio.c[1.8], microcode/pruxio.c[1.3],
microcode/pruxio.c[1.2], microcode/uxio.c[1.25],
microcode/uxselect.h[1.4], microcode/version.h[11.130],
microcode/x11base.c[1.48]:
Implement primitive to detect availability of `select' system call.

1993-04-04 Michael R. Blair <[email protected]>

* microcode/list.c[9.31]:
Added document strings for primitives.

1993-04-02 Chris Hanson <[email protected]>

* edwin/schmod.scm[1.33]:
Add declarations to ignore unused variables.

1993-04-01 Chris Hanson <[email protected]>

* edwin/schmod.scm[1.32], edwin/schmod.scm[1.31]:
Add M-x show-parameter-list to Scheme mode as M-A.

* microcode/m/Attic/hp9k800.h[1.12]:
Update for HP-UX 9.01.

1993-03-31 Michael R. Blair <[email protected]>

* microcode/hooks.c[9.50]:
Add request-interrupts! primitive and re-document interrupt mask primitives.

1993-03-28 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rules1.scm[1.17]:
Add missing B suffix to use of MOVZX instruction.

1993-03-25 Jason Wilson <[email protected]>

* compiler/documentation/porting.guide[1.25]:
fixed a misleading DEFINE-INSTRUCTION example.

1993-03-24 Guillermo J. Rozas <[email protected]>

* compiler/fggen/canon.scm[1.15]:
Fix bug in canonicalize/lambda. Lambda expressions that need the
binding of #[environment] cannot be compiled separately.

1993-03-23 Chris Hanson <[email protected]>

* microcode/cmpgc.h[1.23]:
Work around what is apparently a bug in the HP-UX 9.01 C compiler for
the S700 machines.

1993-03-22 Chris Hanson <[email protected]>

* microcode/s/Attic/hpux.h[1.10]:
*** empty log message ***

1993-03-17 Chris Hanson <[email protected]>

* runtime/defstr.scm[14.24]:
Improve error message for NAMED option without TYPE option.

1993-03-17 Guillermo J. Rozas <[email protected]>

* microcode/unxutl/Attic/ymkfile[1.64]:
rm in install causes no problems.

* microcode/cmpauxmd/hppa.m4[1.26]:
Remove early stack-pop instructions.

1993-03-16 Guillermo J. Rozas <[email protected]>

* runtime/debug.scm[14.33]:
Add ``M'' command to print the stack frame in raw format.

* microcode/cmpauxmd/hppa.m4[1.25]:
Declare the assembly hook region for the trap handler, and change the
flonum return convention so that some state is available in case of a
trap.

* microcode/uxtrap.c[1.21], microcode/uxtrap.h[1.19]:
Teach continue_from_trap about assembly hooks.

* runtime/x11graph.scm[1.27]:
After disk-restore, the display list must be flushed.

1993-03-15 Chris Hanson <[email protected]>

* microcode/uxio.c[1.24]:
Work around stupid restrictions on aggregate initializers.

1993-03-15 Guillermo J. Rozas <[email protected]>

* microcode/termcap.c[1.5], microcode/termcap.c[1.4]:
Remove more alpha problems.

1993-03-14 Guillermo J. Rozas <[email protected]>

* microcode/termcap.c[1.3]:
Move includes before code so that external decls for a few procedures
are visible before the compiler infers decls.

* microcode/uxtrap.h[1.18]:
New alpha trap definitions.

1993-03-13 Jason Wilson <[email protected]>

* runtime/load.scm[14.42]:
Fix magic constant in load/purification-root.

1993-03-11 Chris Hanson <[email protected]>

* microcode/memmag.c[9.49]:
Automatically disable GC reference trace at end of GC.

1993-03-10 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/ymkfile[1.63], microcode/uxio.c[1.23],
microcode/uxselect.h[1.3], microcode/version.h[11.129],
microcode/x11base.c[1.47]:
Implement new interface to `select' system call, which allows
construction of "registries" of file descriptors, which can then be
passed in as arguments.

* microcode/fasdump.c[9.55], microcode/gccode.h[9.47],
microcode/gcloop.c[9.40], microcode/memmag.c[9.48],
microcode/purify.c[9.48]:
Add new primitive GC-TRACE-REFERENCES which will compute the set of
objects that point to a given object. This primitive is implemented
only when the compile-time flag ENABLE_GC_DEBUGGING_TOOLS is set.

1993-03-10 Guillermo J. Rozas <[email protected]>

* compiler/fggen/canon.scm[1.14]:
Fix bug in canonicalize/comment.

1993-03-09 Chris Hanson <[email protected]>

* runtime/thread.scm[1.9]:
Don't hold on to continuation of caller to CREATE-THREAD.

1993-03-08 Guillermo J. Rozas <[email protected]>

* runtime/load.scm[14.41]:
Modify load/purification-root to allow the C back end not to generate
Scode comments.

1993-03-07 Chris Hanson <[email protected]>

* runtime/defstr.scm[14.23], runtime/make.scm[14.45],
runtime/record.scm[1.20], runtime/runtime.pkg[14.175],
runtime/unpars.scm[14.30]:
Add hooks to the runtime system that are for use by SOS:

* Add a slot to record types to hold the class wrapper so that records
can have classes associated with them, and thus be dispatched on by
generic procedures.

* Maintain a population of record types so that classes can be added
to records retroactively when the object system is loaded.

* Add a new unparser hook that overrides the default unparser for
records that satisfy RECORD? (records with explicit unparsers are
unaffected).

* Add a new unparser hook that may override the representation of
procedures, so that generic procedures can have a special
representation.

* Change the DEFINE-STRUCTURE macro so that record-based structures
don't have an explicit unparser unless the PRINT-PROCEDURE option is
used.

1993-03-05 Guillermo J. Rozas <[email protected]>

* edwin/dos.scm[1.10]:
Remove subprocess-job-control-available?, no longer needed and
interfering with the Unix version.

1993-03-03 Chris Hanson <[email protected]>

* runtime/Attic/syntax.scm[14.21]:
Eliminate a few more error checks that were missed in the last edit.

1993-03-03 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rules1.scm[1.16]:
Enable use of MOVZX.

1993-03-02 Guillermo J. Rozas <[email protected]>

* compiler/fggen/canon.scm[1.13]:
Fix some bugs in the last edit.

* compiler/fggen/canon.scm[1.12]:
Improve code generated by multi-definition by using new CONSTANTIFY directive.

* compiler/fggen/fggen.scm[4.30]:
Add CONSTANTIFY directive.

1993-03-01 Arthur Gleckler <[email protected]>

* microcode/types.h[9.34]:
Insert missing comma (after "COMPILED-CODE-BLOCK" in TYPE_NAME_TABLE)
reported by Jim Miller.

1993-03-01 Guillermo J. Rozas <[email protected]>

* runtime/make.scm[14.44]:
Make DEFINE-MULTIPLE return the value returned by the last definition.

* compiler/machines/i386/make.scm[1.4]:
Turn compress-top-level? on.

* compiler/machines/i386/rules3.scm[1.25]:
Add generate/remote-links.

1993-02-28 Chris Hanson <[email protected]>

* runtime/Attic/syntax.scm[14.20]:
Eliminate prohibition against using syntactic keywords as variables.
If done properly, we could prohibit top-level variable bindings that
might cause trouble while allowing local bindings; but this requires
redesign of the syntaxer.

1993-02-28 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/lapopt.scm[1.11]:
Fix bug in fix-complex-return. The instr moved could be the one
storing the return address being loaded in the LDW instruction!

* compiler/machines/spectrum/machin.scm[4.28],
compiler/machines/spectrum/make.scm[4.89]:
Add generate/remote-links, PC caching, and cache hints for consing,
and PA-RISC 1.1 registers.

* compiler/machines/spectrum/lapgen.scm[4.43],
compiler/machines/spectrum/rules1.scm[4.34],
compiler/machines/spectrum/rulflo.scm[4.36]:
Add generate/remote-links, PC caching, and cache hints for consing.

* compiler/machines/spectrum/rules3.scm[4.39]:
Add generate/remote-links and PC caching.

1993-02-27 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/rulrew.scm[1.9]:
Eliminate spurious ZDEPs.

* runtime/infutl.scm[1.46], runtime/infutl.scm[1.45]:
Speed up the uncompressor.

1993-02-26 Chris Hanson <[email protected]>

* runtime/list.scm[14.17]:
Fix various bugs from previous edit.

1993-02-25 Chris Hanson <[email protected]>

* runtime/list.scm[14.16], runtime/list.scm[14.15]:
Install missing error checks in various procedures that take lists as
arguments. Replace simple error calls with calls to more specific
error signalling procedures. Change mapping procedures to use
iterative algorithm for multiple-list case.

1993-02-25 Guillermo J. Rozas <[email protected]>

* runtime/option.scm[14.19]:
Fix package for dosprocess.

* edwin/loadef.scm[1.21]:
shell-command must be autoloaded. `M-x shell' needs it.

* edwin/dos.scm[1.9], edwin/editor.scm[1.226], edwin/unix.scm[1.34]:
Directory must be passed to os/quit. By the time it is invoked,
the code is not running in the context of the editor.

* edwin/basic.scm[1.129]:
Fix backwards conditional.

* edwin/decls.scm[1.46]:
Add doscom and dosshell

* edwin/edwin.pkg[1.117]:
Fix transposed characters (c-t).

* runtime/make.scm[14.43]:
Eliminate warning from SF.

* edwin/edwin.pkg[1.116.1.1]:
Update DOS version.

* edwin/loadef.scm[1.20]:
Add dos commands and pseudo shell.

* edwin/doscom.scm[1.2], edwin/dosshell.scm[1.2]:
Add load-option.

* edwin/edwin.pkg[1.116]:
Add package (edwin dosjob)

* runtime/option.scm[14.18]:
Add option DOSPROCESS

* edwin/basic.scm[1.128], edwin/dos.scm[1.8], edwin/editor.scm[1.225],
edwin/unix.scm[1.33]:
Add os/quit and os/scheme-can-quit?

* compiler/base/make.scm[4.98]:
Changes for the C back end and to improve the open coding of vectors
on the 386.

* compiler/machines/alpha/compiler.pkg[1.6],
compiler/machines/bobcat/compiler.pkg[1.43],
compiler/machines/i386/compiler.pkg[1.15],
compiler/machines/mips/compiler.pkg[1.13],
compiler/machines/spectrum/compiler.pkg[1.41],
compiler/machines/vax/compiler.pkg[1.16]:
Export available-machine-registers and remove the disassembler.

* compiler/rtlbase/rtlcon.scm[4.25]:
Improve code generated by TYPED-CONS:VECTOR.
It now does something different if the number of elements exceeds the
number of the available word registers.

* compiler/base/switch.scm[4.22]:
Add compiler:avoid-scode?

* compiler/fggen/canon.scm[1.11]:
Add new rewrite that avoids Scode lambdas. Originally written for the
C back end.

* runtime/make.scm[14.42]:
Fix bug in last edit.

* runtime/make.scm[14.41]:
Add changes for the C back end.

1993-02-23 Guillermo J. Rozas <[email protected]>

* microcode/boot.c[9.77]:
Bug when checking in the last version.

* microcode/interp.c[9.74]:
Bug when checking in.

* compiler/machines/i386/lapgen.scm[1.22]:
Fix bug in reference->register-transfer. The bug was the cause of
multiple

(mov w (r 0) (r 0))

instructions in the output.

* microcode/boot.c[9.76], microcode/interp.c[9.73],
microcode/utils.c[9.56]:
Add C_call_scheme.

* microcode/errors.h[9.38], microcode/utabmd.scm[9.66]:
Add new errors.

1993-02-22 Chris Hanson <[email protected]>

* compiler/rtlopt/ralloc.scm[1.17]:
Handle case where REGISTER-LIVE-LENGTH of a register is zero. This
can happen when a register is assigned but not referenced; ideally it
would be best not to generate code like this but in at least one case
it is hard to avoid.

* edwin/fill.scm[1.58]:
Fix bug that occurs in last line of paragraph when there's no
whitespace in the line and it's longer than the fill column.

1993-02-22 Guillermo J. Rozas <[email protected]>

* microcode/error.c[1.4]:
Remove warnings.

1993-02-22 Nick Papadakis <[email protected]>

* microcode/array.h[9.34]:
Fixed bug with scmsig/scm6003 involving image.o
Somehow, #ifndef for REAL_IS_DEFINED_DOUBLE managed to vanish ...

* microcode/unxutl/Attic/y700.lcl[1.5]:
Fixed bug with scmsig/scm6003 involving image.o

* microcode/unxutl/Attic/makefile[1.20]:
Removed references to local version of scheme (scmsig, scm6003, etc.)
Added call to 'clean.world' target in xmakefile (with errors ignored)
to take care of most of the reasons for the references.

1993-02-21 Chris Hanson <[email protected]>

* edwin/dired.scm[1.136], edwin/unix.scm[1.32]:
Read value of DIRED-LISTING-SWITCHES that is local to the dired
buffer being filled.

1993-02-21 Guillermo J. Rozas <[email protected]>

* microcode/termcap.c[1.2]:
Kludge in termcap.c for OSs with NO_BAUD_CONVERSION.

* microcode/ux.h[1.44]:
386BSD defines all the _SC_..., it just doesn't have sysconf.

* microcode/uxsig.c[1.25]:
SIGCHLD may be initially ignored, if the process that started (exec'd
to) scheme had set it to SIG_IGN.

1993-02-20 Guillermo J. Rozas <[email protected]>

* microcode/ux.h[1.43]:
Add NO_BAUD_CONVERSION to OSF (at least DEC OSF).

1993-02-19 Chris Hanson <[email protected]>

* compiler/machines/bobcat/rules3.scm[4.38]:
Fix typo.

* microcode/cmpauxmd/mc68k.m4[1.24], microcode/cmpintmd/mc68k.h[1.34],
microcode/version.h[11.128]:
Implement SET-INTERRUPT-ENABLES! hook.

* edwin/ed-ffi.scm[1.29]:
Fix inconsistency with "edwin.pkg".

1993-02-19 Jason Wilson <[email protected]>

* edwin/sercom.scm[1.61]:
I added a primitive form of toggling case-sensitivity by giving search
commands a numeric argument. C-s and C-r are dumb in that if you
restart a search (ie C-s C-s), it won't remember if you were toggling
case-fold-search before. Also, search-prompt and re-search-prompt
should display the numeric arguement or better yet, the new
sensitivity when prompting.

1993-02-18 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/lapopt.scm[1.10]:
Remove spurious NOPs

* compiler/machines/spectrum/lapgen.scm[4.42],
compiler/machines/spectrum/rules3.scm[4.38]:
Eliminate spurious NOPs.

* microcode/uxterm.c[1.21]:
Add macro NO_BAUD_CONVERSION.

* microcode/ux.c[1.11], microcode/ux.h[1.42]:
Add EMULATE_FPATHCONF, EMULATE_SYSCONF, and fix a few prototypes.

* microcode/dump.c[9.36]:
ifdef extern declarations to prevent warnings.

* microcode/bchdmp.c[9.69], microcode/tparam.c[1.6]:
Fix prototypes.

* microcode/unxutl/Attic/config[1.18]:
Add 386bsd.

* compiler/machines/alpha/lapgen.scm[1.4]:
Fix bug in split-64-bits.

1993-02-16 Arthur Gleckler <[email protected]>

* microcode/uxterm.c[1.20]:
Fix = vs. == bug in OS_baud_rate_to_index.

1993-02-15 Guillermo J. Rozas <[email protected]>

* compiler/machines/alpha/lapgen.scm[1.3]:
Disable warning about 64-bit constants.

* compiler/machines/alpha/rules3.scm[1.4],
microcode/s/Attic/decosf.h[1.3]:
DEC OSF BL10 has fixed the bug about writing to the code containing
the PC. Re-enable the linker code.

* compiler/machines/alpha/rulrew.scm[1.2]:
Fix bugs, missing rtl:constant-value

* compiler/machines/spectrum/lapopt.scm[1.9]:
Fix braino in last edit.

* compiler/machines/spectrum/lapopt.scm[1.8]:
Do not move instructions that mention *PC*.

* compiler/machines/spectrum/lapopt.scm[1.7]:
Fix braino.

* microcode/m/Attic/alpha.h[1.4]:
Eliminate obsolete flag and add optimization flag for BL10.

* microcode/unxutl/Attic/ymkfile[1.62]:
Add missing dependency from fixnum.o to mul.c

* microcode/fasl.h[9.33], microcode/mul.c[9.33]:
Fix problems on the Alpha

1993-02-14 Guillermo J. Rozas <[email protected]>

* edwin/telnet.scm[1.9]:
Add #\C-c #\C-d .

* microcode/ux.h[1.41]:
Change to use correct osf feature macro.

* compiler/machines/spectrum/lapopt.scm[1.6]:
Add info on STWM.

* compiler/machines/spectrum/lapopt.scm[1.5]:
Fix parenthesis bug.

* compiler/machines/spectrum/lapopt.scm[1.4]:
Use reverse! instead of reverse to avoid holding onto two copies of
the instruction list.

* compiler/machines/spectrum/lapopt.scm[1.3]:
Do not move conditionals around conditionals.

* compiler/machines/spectrum/lapopt.scm[1.2]:
Add a simple peephole optimizer to improve common patterns.

* compiler/machines/spectrum/instr2.scm[1.5]:
Fix bug introduced in last edit.

1993-02-13 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/instr1.scm[1.3],
compiler/machines/spectrum/instr2.scm[1.4],
compiler/machines/spectrum/lapgen.scm[4.41]:
Remove NOPs from conditionals by adding a branch-tensioner hack to
accomodate the sign of the displacement.

1993-02-12 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/rulflo.scm[4.35]:
Remove name conflict introduced by last change.

* compiler/machines/spectrum/rulflo.scm[4.34]:
Fix NaN handling in floating-point conditions.

1993-02-11 Stephen Adams <[email protected]>

* microcode/psbmap.h[9.38]:
Conditionalized include of `8.3' filename for NT: bignumint.h -> bignumin.h

* microcode/Attic/posixtyp.h[1.7]:
Added posix types for Windows/NT + cl386

* microcode/Attic/oscond.h[1.13]:
Added conditionalizations for Windows/NT

* microcode/os.h[1.3]:
Parameterized 8.3 `8.3' filename problem for Windows/NT

* microcode/option.c[1.31]:
Added Windows/NT-isms

* microcode/fixnum.c[9.37], microcode/option.h[1.10]:
Changed `Header:' to `Id:'.

* microcode/fasdump.c[9.54], microcode/fft.c[9.31],
microcode/fhooks.c[9.33]:
Header: -> Id:

1993-02-11 Chris Hanson <[email protected]>

* compiler/machines/bobcat/dassm2.scm[4.22]:
Update to reflect new hook for SET-INTERRUPT-ENABLES!.

1993-02-10 Stephen Adams <[email protected]>

* microcode/image.c[9.33], microcode/intext.h[1.3],
microcode/list.c[9.30]:
Header: -> Id:

* microcode/bignum.c[9.39]:
Windows/NT `8.3' filename conflict in #include "bignumint.h"

1993-02-10 Chris Hanson <[email protected]>

* runtime/random.scm[14.6]:
Fix typo.

* edwin/process.scm[1.28]:
Eliminate unfortunate loop that caused error to be signalled by C-x
C-c when there were active processes.

* edwin/edwin.pkg[1.115]:
Change to match changes to "tagutl".

* edwin/tagutl.scm[1.49]:
Repaginate.

1993-02-09 Arthur Gleckler <[email protected]>

* edwin/outline.scm[1.6]:
Make FORWARD-TOPIC and FORWARD-UP-TOPIC move to the first topic marker
if the point starts before the first topic marker. Previously, they
had no effect in that case.

1993-02-09 Chris Hanson <[email protected]>

* runtime/random.scm[14.5]:
Completely new generator, interface is upwards compatible with
previous design. RANDOM accepts any real number as a modulus
argument. MAKE-RANDOM-STATE additionally accepts an exact integer,
which it uses as a seed to create the state, thus providing a simple
means of producing a specific random state.

1993-02-06 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/hppa.h[1.39]:
Bug in last edit.

* microcode/uxsig.c[1.24]:
Eta convert fclose to make it work with incompatible system-dependent
declarations.

* microcode/Attic/posixtyp.h[1.6], microcode/tparam.c[1.5],
microcode/ux.h[1.40], microcode/uxenv.c[1.10],
microcode/uxtop.c[1.10], microcode/uxtrap.h[1.17]:
Make it work under Utah BSD 4.3

* microcode/hppacach.h[1.4], microcode/m/Attic/hp9k800.h[1.11]:
Make it work under BSD.

* microcode/Attic/config.h[9.78]:
Fix bad conditionalization for HP hardware. The definitions are
hardware dependent, not OS dependent.

* microcode/cmpintmd/hppa.h[1.38]:
Add support for BSD, with no uname call to find model, and with
heaps potentially non-executable.

* microcode/bchdrn.c[1.5]:
Avoid duplicate include of setjmp.h

* microcode/bchdmp.c[9.68]:
Eta convert read and write to avoid conflicting system-dependent
declarations.

1993-02-02 Guillermo J. Rozas <[email protected]>

* edwin/basic.scm[1.127], edwin/dos.scm[1.7]:
Add a pseudo-suspend to DOS that invokes a subshell.

* microcode/Attic/dossig.c[1.16], microcode/Attic/dosx32.c[1.6]:
Add a pseudo-suspend that invokes a subshell.

1993-02-02 Jason Wilson <[email protected]>

* compiler/rtlgen/opncod.scm[4.59]:
Fix bug by which RTL INVOCATION:PRIMITIVEs had the wrong frame size
for combinations with partial open codings in tail-recursive position.

1993-02-02 Nick Papadakis <[email protected]>

* microcode/x11base.c[1.46]:
Swapped order of arguments to x_default_color, was preferring "Emacs"
resources over "edwin" resources.

1993-02-01 Chris Hanson <[email protected]>

* runtime/arith.scm[1.26]:
Signal an error for (/ 1/2 0).

1993-01-29 Stephen Adams <[email protected]>

* runtime/make.scm[14.40], runtime/runtime.pkg[14.173]:
Add (runtime pathname nt)

* runtime/pathnm.scm[14.26]:
Change MS-NT to NT.

1993-01-29 Chris Hanson <[email protected]>

* edwin/bufwiu.scm[1.24]:
Procedure that tests to see if window needs redisplay must first call
%NOTICE-WINDOW-CHANGES. A reply of #T permits the use of direct
output, which is wrong if there are buffer changes that haven't yet
been written to the screen.

* runtime/runtime.pkg[14.174]:
Simplify FILE-CASE clauses -- otherwise CREF generates *two* entries
for every binding in each duplicated file.

* runtime/thread.scm[1.8]:
Fix bug that caused THREAD-TIMER-RUNNING? to be true when the timer
was not running. Redesign code that toggles the timer on and off to
make it simpler (and less likely to fail).

1993-01-28 Stephen Adams <[email protected]>

* runtime/runtime.pkg[14.172]:
Add dummy variants for Windows NT.

1993-01-27 Guillermo J. Rozas <[email protected]>

* microcode/typename.txt[1.2]:
Add record types.

1993-01-25 Jason Wilson <[email protected]>

* edwin/tagutl.scm[1.48]:
I finished up the new tag stuff. Now you can include other tags files
as in emacs 19. Also, you can optionally cause tags-search and
tags-query-replace to kill buffers that aren't modified.

1993-01-25 Nick Papadakis <[email protected]>

* 6001/floppy.scm[1.14]:
Use the right package this time ... arrgh.

1993-01-24 Chris Hanson <[email protected]>

* edwin/undo.scm[1.54]:
UNDO-DONE! shouldn't enable undo if it is disabled.

1993-01-24 Gerald Jay Sussman <[email protected]>

* 6001/floppy.scm[1.12]:
updated floppy.scm to conform to the change made by Bill

RCS file: /scheme/src/runtime/RCS/unxprm.scm,v
Working file: unxprm.scm
head: 1.23
branch:
locks: strict
access list:
symbolic names:
RELEASE_7_1_0: 1.9
RELEASE_7_0_0: 1.4
comment leader: ";;; "
keyword substitution: kv
total revisions: 23; selected revisions: 23
description:

----------------------------
revision 1.23
date: 1993/01/12 19:01:28; author: gjr; state: Exp; lines: +2 -5
Remove current-file-time, replaced by get-time.

1993-01-24 Nick Papadakis <[email protected]>

* 6001/floppy.scm[1.13]:
Just get-time, not unix/get-time

1993-01-23 Chris Hanson <[email protected]>

* edwin/fileio.scm[1.116]:
Redesign interaction between line-end translation and changes/undo
recording. New model suppresses changes and undo only for output
translations, since these translations will be undone before the
redisplay occurs. When inserting a file into the buffer, it does not
affect the change recording at all, since the translation won't exceed
the boundaries of the inserted text, and it's desirable to notice the
change of inserting the file in the usual way.

1993-01-23 Nick Papadakis <[email protected]>

* microcode/unxutl/Attic/y700.lcl[1.4],
microcode/unxutl/Attic/ymkfile[1.61]:
Added conditionalization for REAL_IS_DEFINED_DOUBLE in array.h
scmsig wants this set to 1, all other schemes (in particular, scm6003)
want this set to 0.

1993-01-20 Chris Hanson <[email protected]>

* edwin/utils.scm[1.31]:
Fix fencepost error in code that places zero byte at end of string.

* edwin/utils.scm[1.30]:
SET-STRING-MAXIMUM-LENGTH! was locking interrupts with
INTERRUPT-MASK/GC-OK. Needless to say, GC is *not* OK during this
operation.

* runtime/wind.scm[14.5]:
Change DYNAMIC-WIND (and FLUID-LET) so that they record the state
transition *after* the "before" thunk is executed. This guarantees
that both the "before" and "after" thunks execute in the dynamic state
outside of the DYNAMIC-WIND call.

**** NB: ****
The particular change I made is buggy: I only changed how the state
transition is performed in the normal case. If you throw out from the
"during" thunk and then throw back in, the "before" thunk will be
executed after its state transition is recorded. In order to fix this
properly, the state space structure must be extended to include
information indicating whether the transition should be recorded
before or after the transition thunk.

* edwin/intmod.scm[1.55]:
Fix typo in PROMPT-FOR-CONFIRMATION operation on REPL mode console
port.

1993-01-20 Jason Wilson <[email protected]>

* edwin/tagutl.scm[1.47]:
I added the ability to use more than one TAGS file at one time using
the command visit-additional-tags-file. Still to be done is to handle
included TAGS files ala Emacs 19.

1993-01-19 Chris Hanson <[email protected]>

* runtime/strout.scm[14.7]:
Always grow string by fixed ratio to guarantee constant amortized cost
of insertion.

1993-01-18 Chris Hanson <[email protected]>

* runtime/strout.scm[14.5]:
Don't call APPLY with a list that could potentially be huge. Instead
allocate a string buffer and fill it; grow buffer when necessary and
accept that there will be some memory waste.

* runtime/rep.scm[14.30]:
When printing error messages, put some large limits on the output to
prevent the error message from causing secondary lossage.

* microcode/hooks.c[9.49]:
Don't lose completely when second arg to APPLY is too long to fit in
stack.

1993-01-18 Guillermo J. Rozas <[email protected]>

* edwin/edwin.pkg[1.114.1.2]:
Bump date.

* edwin/edwin.pkg[1.114.1.1]:
Update DOS version to match Unix version.

* runtime/strout.scm[14.6]:
Fix bug: write-substring was not growing the accumulator enough when
the substring was larger than the size of the accumulator.

1993-01-16 Chris Hanson <[email protected]>

* edwin/bufwin.scm[1.300]:
Must run %NOTICE-WINDOW-CHANGES! when doing direct update so that any
changes to the window are handled correctly.

1993-01-13 Chris Hanson <[email protected]>

* runtime/unxpth.scm[14.15]:
(DIRECTORY-PATHNAME-AS-FILE "/") can't represent its result properly,
because null strings aren't allowed as pathname names. So just return
the argument in this case and hope for the best.

* runtime/random.scm[14.4], runtime/runtime.pkg[14.171]:
Install new version of RANDOM from slib1c4.

* compiler/machines/bobcat/lapgen.scm[4.47],
compiler/machines/bobcat/rules3.scm[4.37]:
Implement calls to SET-INTERRUPT-ENABLES! by jumping to
assembly-language hook in compiled code interface.

1993-01-12 Brian A. LaMacchia <[email protected]>

* edwin/bufwiu.scm[1.23]:
Fix boundary error involving changes indexes in buffer and narrowing.

1993-01-12 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.169], runtime/x11graph.scm[1.26]:
Define new procedure X-GRAPHICS/WINDOW-ID, which returns the resource
ID of the X window.

* microcode/x11base.c[1.45]:
Add new primitive X-WINDOW-ID.

* 6001/edextra.scm[1.16]:
Fix spelling error that has been corrected in Edwin.

* edwin/bufwin.scm[1.299], edwin/bufwiu.scm[1.22],
edwin/bufwmc.scm[1.16], edwin/decls.scm[1.45],
edwin/image.scm[1.130], edwin/motion.scm[1.85], edwin/undo.scm[1.53],
edwin/utlwin.scm[1.58]:
Change method by which a window recomputes its starting point. Old
method did too much work, particularly in cases where the line was
very long. New method searches backward -- exactly once -- to start
of first line that will appear in the window, and saves all of the
resulting information in the window for later use.

Unfortunately, there are many other problems with the algorithms that
make them dependent on line length, and it's a lot of work to fix
them. To fix it write will involve rewriting the display update code,
yet again, and I'm not in the mood for that right now. However, it
won't be necessary to rewrite the starting-point computation when that
does finally happen.

* edwin/filcom.scm[1.174]:
Fix two bugs in M-x recover-file.

* compiler/machines/mips/rules3.scm[1.16]:
Calls to SET-INTERRUPT-ENABLES! primitive should be compiled as traps
to the special assembly hook. This change requires microcode 11.126.

* compiler/rtlgen/opncod.scm[4.58]:
Disable open-coding of SET-INTERRUPT-ENABLES! -- it can't work without
a good deal of hair, and in that case it's probably not desirable.

* microcode/cmpauxmd/mips.m4[1.10], microcode/version.h[11.126]:
Add assembly hook to implement SET-INTERRUPT-ENABLES! primitive.

1993-01-12 Guillermo J. Rozas <[email protected]>

* runtime/dospth.scm[1.18], runtime/fileio.scm[1.5],
runtime/io.scm[14.32], runtime/pathnm.scm[14.25],
runtime/runtime.pkg[14.170], runtime/unxpth.scm[14.14],
runtime/version.scm[14.160]:
Add support for handling end-of-file ^Z under DOS.

* microcode/prename.h[1.7]:
Add CURRENT-FILE-TIME as an alias for ENCODED-TIME.

* microcode/Attic/dosenv.c[1.3], microcode/osenv.h[1.3],
microcode/prosenv.c[1.8], microcode/uxenv.c[1.9],
microcode/version.h[11.127], runtime/datime.scm[14.4]:
Redo time primitives to provide conversion between decoded and encoded
times.

* microcode/Attic/msdos.h[1.4], microcode/utabmd.scm[9.65],
microcode/ux.h[1.39]:
Add syscall_mktime.

* microcode/Attic/prdosenv.c[1.10], microcode/pruxenv.c[1.14]:
Remove current-file-time.

* edwin/edwin.pkg[1.114]:
Import get-time.

* edwin/rmail.scm[1.27], edwin/sendmail.scm[1.18]:
Replace unix/current-file-time with get-time.

* runtime/unxprm.scm[1.23]:
Remove current-file-time, replaced by get-time.

* runtime/dosprm.scm[1.17]:
Remove current-file-time, not in use.

1993-01-12 Gerald Jay Sussman <[email protected]>

* 6001/edextra.scm[1.17]:
Fix print-graphics to work with all windows

* 6001/picture.scm[1.18]:
Fix bugs in consistent assignment of coordinate limits.

1993-01-10 Chris Hanson <[email protected]>

* edwin/basic.scm[1.126], edwin/edwin.pkg[1.113],
edwin/grpops.scm[1.18], edwin/struct.scm[1.85]:
New code to grow and shrink buffers guarantees that the average time
of inserting or deleting each character is bounded by a constant. The
user is given some control over this behavior by means of the editor
variable BUFFER-REALLOCATION-FACTOR, which allows a space-time
tradeoff between the average insertion/deletion time and the average
load factor of the buffer. BUFFER-REALLOCATION-FACTOR may be given a
local value in a given buffer to change that buffer's allocation
without affecting other buffers.

* edwin/undo.scm[1.52]:
Change GC undo truncation code to use buffer-local values of limit
variables.

* edwin/kilcom.scm[1.64]:
Fix typo.

* edwin/comred.scm[1.96]:
Typed characters are now grouped properly by undo regardless of their
position on the line.

* edwin/class.scm[1.71], edwin/clscon.scm[1.6], edwin/debuge.scm[1.50]:
Class and object data structures are now tagged as if by
DEFINE-STRUCTURE.

1993-01-09 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.112]:
GAP-ALLOCATION-EXTRA no longer defined.

* edwin/fileio.scm[1.115], edwin/utils.scm[1.29]:
Define a new condition type that is signalled when STRING-ALLOCATE is
unable to allocate the string due to a lack of memory. Set up a
condition handler for this type in the file-reading code so that the
error message tells the user that the file is too big to fit in
memory.

* edwin/bufwin.scm[1.298], edwin/bufwiu.scm[1.21],
edwin/intmod.scm[1.54]:
Fix several instances of SET-INTERRUPT-ENABLES! that appear in value
position but are intended to be for effect.

* edwin/buffer.scm[1.161], edwin/edwin.pkg[1.111],
edwin/struct.scm[1.84], edwin/struct.scm[1.83]:
Add a SHRINK-LENGTH field to the group data structure, and change the
allocation of groups to initialize them to a fixed minimum size.

* edwin/buffrm.scm[1.47], edwin/bufwin.scm[1.297],
edwin/bufwiu.scm[1.20], edwin/bufwmc.scm[1.15],
edwin/comred.scm[1.95], edwin/curren.scm[1.106],
edwin/decls.scm[1.44], edwin/edtfrm.scm[1.85],
edwin/edwin.pkg[1.110], edwin/fileio.scm[1.114],
edwin/grpops.scm[1.17], edwin/image.scm[1.129],
edwin/macros.scm[1.59], edwin/make.scm[3.77], edwin/motion.scm[1.84],
edwin/struct.scm[1.82], edwin/things.scm[1.84], edwin/undo.scm[1.51],
edwin/utils.scm[1.28]:
This version of Edwin requires microcode 11.125 or later. It should
be compiled with compiler version 4.97 or later, because its
performance depends on several new compiler optimizations.

* Major redesign of low-level insert and delete operations, the
primary aim of which is to greatly improve performance:

* Insert, delete, and move-point daemons flushed.

* Limits that track the extent of the changes to a buffer between
display updates are now per-buffer rather than per-window. The
windows are notified of these changes at display update rather
than while the changes are occurring.

* Calls to the primitives STRING-ALLOCATE, SUBSTRING-MOVE-RIGHT!,
and SUBSTRING-MOVE-LEFT! have been replaced with calls to Scheme
procedures that perform the same functions. These new procedures
avoid the cost of calling C code, which can be very high. The
latter two procedures use heuristics to decide whether it is
better to call the C primitive or to do the operation in line.

* The undo subsystem has been reimplemented. The new implementation
is a near-exact translation of the new undo code from Emacs 18.56.
The major features of this implementation are: unlimited undo memory
for one undo step; significantly better performance; and much
clearer implementation, reducing probability of bugs (the previous
implementation is known to be buggy).

* The new implementation of STRING-ALLOCATE fixes the bug that caused
the editor to go into an infinite loop when reading in a file that
was too large to fit in memory.

* The MOVE-TO-COLUMN procedure had a problem because it was searching
for the end of line in order to pass it as a limit argument to
GROUP-COLUMN->INDEX. In some cases, particularly paragraph fill,
this changed a linear algorithm to quadratic. This has been fixed
by changing GROUP-COLUMN->INDEX to stop at end of line even if that
is not the given limit.

* The DEFINE-NAMED-STRUCTURE macro has been changed to create an
object like those created by DEFINE-STRUCTURE, so that the printer
and pretty-printer will treat them in the usual way.

* The LINE-START and LINE-END procedures have been rewritten to make
them faster. These procedures are used in many places in the editor
and must be fast. The associated MOVE-VERTICALLY has been
eliminated as it's no longer used.

* TRANSPOSE-THINGS has been rewritten so that it doesn't leave
permanent marks attached to the buffer.

* HORIZONTAL-SPACE-START and HORIZONTAL-SPACE-END no longer look for
the nearest line limit, since that was completely unnecessary. The
procedures that they call automatically stop at the line edge.

* BOCHSER code, which was not being loaded, is now also not compiled
since it depended on the move-point daemons.

1993-01-08 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/makefile[1.19]:
Add entries for "scmsig" and "everything".

* compiler/base/make.scm[4.97],
compiler/machines/alpha/machin.scm[1.4],
compiler/machines/bobcat/dassm2.scm[4.21],
compiler/machines/bobcat/machin.scm[4.29],
compiler/machines/i386/machin.scm[1.16],
compiler/machines/mips/machin.scm[1.11],
compiler/machines/mips/rulfix.scm[1.9],
compiler/machines/mips/rulrew.scm[1.5],
compiler/machines/spectrum/machin.scm[4.27],
compiler/machines/vax/dassm2.scm[4.12],
compiler/machines/vax/machin.scm[4.11],
compiler/rtlbase/rtlty2.scm[4.11], compiler/rtlgen/opncod.scm[4.57]:
Fixed bug in inline expander for OBJECT-TYPE?.

Added inline expanders for primitives: GET-INTERRUPT-ENABLES,
SET-INTERRUPT-ENABLES!, PRIMITIVE-GET-FREE, PRIMITIVE-INCREMENT-FREE,
HEAP-AVAILABLE?, and SET-STRING-LENGTH!. Some of these primitives are
new with microcode version 11.125.

For the MIPS, added support for open-coding of FIXNUM-LSH.

1993-01-08 Guillermo J. Rozas <[email protected]>

* compiler/base/lvalue.scm[4.20]:
Remove fossil?

1993-01-07 Chris Hanson <[email protected]>

* microcode/sysprim.c[9.38], microcode/version.h[11.125]:
Added new primitives: PRIMITIVE-GET-FREE, PRIMITIVE-INCREMENT-FREE,
HEAP-AVAILABLE?.

* runtime/rep.scm[14.29], runtime/runtime.pkg[14.168]:
Export REPL history variables needed to make new histories and install
them in an active REPL.

1993-01-05 Guillermo J. Rozas <[email protected]>

* compiler/base/crsend.scm[1.9], compiler/base/crstop.scm[1.12]:
Change cc-vector structures to be of type vector so they can be
dumped.

1993-01-04 Chris Hanson <[email protected]>

* sf/emodel.scm[4.3]:
Don't allow the same name to be interned twice in the same block.

1993-01-02 Chris Hanson <[email protected]>

* sf/chtype.scm[4.2], sf/copy.scm[4.2], sf/emodel.scm[4.2],
sf/free.scm[4.2], sf/make.scm[4.26], sf/object.scm[4.5],
sf/pardec.scm[4.7], sf/reduct.scm[4.4], sf/sf.pkg[4.8],
sf/subst.scm[4.9], sf/tables.scm[4.2], sf/toplev.scm[4.10],
sf/usiexp.scm[4.14], sf/xform.scm[4.4]:
Complete redesign of environment model and declaration parser. This
was prompted by a bug that had been present since the original design;
the bug was inherent in the design, hence the need for a redesign.
The new design has the following features:

* The old design used a two-level environment model for the top-level
environment, in which imported and global bindings were
distinguished from top-level bindings appearing in the file. The
new design uses a single top-level environment for all bindings.
This is the change fixed the bug, but introduced performance
problems because the two-level design had a special hack for the
global environment; the performance problems were fixed by:

* The new design uses a hash table to hold the bindings in (the model
of) an environment frame when the number of bindings exceeds a
preset threshold. This allows very large environment frames to have
reasonable access times, while avoiding the time and space overhead
of the hash table for small environment frames; typically only a few
frames will use the hash table mechanism. The hash table uses open
addressing with double hashing.

* Because ".ext" files are internal data structures that are written
to a file, old ".ext" files are incompatible with the new scode
optimizer. In order to prevent lossage, ".ext" files have a new
format, which contains a version number. When the scode optimizer
encounters an old ".ext" file, or a new one with the wrong version
number, it will emit a warning and ignore it.

* Code that supported special "error combinations" has been removed,
since these are no longer used.

* Code that generated ".unf" files has been removed. Since several
procedures with semi-public interfaces accept arguments or return
values relating to these files, the procedures ignore such arguments
and return dummy values. The global variable SFU? has been
eliminated.

1992-12-30 Guillermo J. Rozas <[email protected]>

* compiler/fggen/canon.scm[1.10]:
Add definition compression for the C back end.

* compiler/base/scode.scm[4.8]:
Add scode/sequence?

* compiler/back/lapgn1.scm[4.14], compiler/rtlgen/opncod.scm[4.56]:
Changes for the C back end.

* compiler/back/asutl.scm[1.2]:
Add < and expt to the set of back-end-specific operations.

1992-12-29 Guillermo J. Rozas <[email protected]>

* compiler/base/infnew.scm[4.9], compiler/base/switch.scm[4.21]:
Some changes for the C back end.

1992-12-28 Chris Hanson <[email protected]>

* compiler/base/make.scm[4.96],
compiler/machines/mips/rules3.scm[1.15]:
Change implementation of INVOCATION:APPLY to use the new
shortcircuit_apply code in the microcode interface. This change
requires version 11.124 of the microcode.

* compiler/machines/mips/lapgen.scm[1.12],
compiler/machines/mips/rulfix.scm[1.8]:
Tweak fixnum rules slightly so that previous implementation of logical
fixnum operations will work correctly.

* compiler/rtlgen/opncod.scm[4.55]:
Fix think-o in implementation of object-type inliner.

* runtime/defstr.scm[14.22]:
Fix bug in code that recognizes named structures. Don't integrate
predicates, since compiler is unable to take advantage of this
integration in the situations that need it.

* microcode/cmpauxmd/mips.m4[1.9], microcode/version.h[11.124]:
Install shortcircuit_apply support for MIPS.

1992-12-23 Chris Hanson <[email protected]>

* compiler/machines/mips/rulrew.scm[1.4]:
Fix think-o from the past.

* compiler/Attic/Makefile[1.10]:
Change ".binf" to ".bci".

* compiler/rtlgen/opncod.scm[4.54]:
Fix typo in previous change.

1992-12-22 Chris Hanson <[email protected]>

* runtime/defstr.scm[14.21]:
Integrate structure predicates.

* runtime/global.scm[14.45], sf/usiexp.scm[4.13]:
Define CALL-WITH-VALUES to be an alias for WITH-VALUES.

* compiler/machines/mips/machin.scm[1.10],
compiler/machines/mips/rulfix.scm[1.7]:
Add open-coding for FIXNUM-NOT, FIXNUM-AND, FIXNUM-ANDC, FIXNUM-OR,
and FIXNUM-XOR.

1992-12-17 Chris Hanson <[email protected]>

* runtime/record.scm[1.19]:
Change reference from UNPARSER-METHOD? to PROCEDURE? so that cold-load
will work with interpreted code. The error test this implements isn't
very important anyway.

1992-12-16 Guillermo J. Rozas <[email protected]>

* compiler/fgopt/reuse.scm[1.7]:
Fix bug. Dependents are not nodes, but targets.

* compiler/rtlgen/opncod.scm[4.53]:
Fix bug in last edit.

* compiler/rtlgen/opncod.scm[4.52]:
Improve the open coder for OBJECT-TYPE?

* compiler/rtlopt/rinvex.scm[1.7]:
Generalize an identity from value-class=datum to
value-class=immediate.

* compiler/rtlgen/opncod.scm[4.51]:
Bug in object-type open coding!

1992-12-15 Chris Hanson <[email protected]>

* microcode/hooks.c[9.48]:
Turn off stack-overflow interrupt in both WITHIN-CONTINUATION and
CALL-WITH-CURRENT-CONTINUATION, since they eliminate the condition.

1992-12-15 Guillermo J. Rozas <[email protected]>

* edwin/edwin.pkg[1.109.1.1]:
Update DOS version to match Unix version.

* edwin/edwin.pkg[1.109]:
Add blank line to make comparing with DOS version easier.

1992-12-11 Arthur Gleckler <[email protected]>

* edwin/edwin.pkg[1.108]:
Set up (EDWIN DEBUGGER) package to handle my (older) version of the
debugger by linking some variables the new debugger doesn't need.

1992-12-11 Guillermo J. Rozas <[email protected]>

* edwin/dos.scm[1.6]:
Fix bug in finding init file.
Teach the edwin filename parser about ~ on DOS.

1992-12-10 Chris Hanson <[email protected]>

* microcode/x11base.c[1.44]:
Change primitives that set window colors to use the window's colormap
instead of the display's default colormap.

* microcode/x11base.c[1.43]:
Ignore BadWindow errors generated by XDestroyWindow.

* runtime/record.scm[1.18], runtime/runtime.pkg[14.167],
runtime/uproc.scm[1.6], runtime/uproc.scm[1.5]:
Change record support to understand that a record is applicable only
when its type is a record whose length field has been specially
marked.

1992-12-09 Chris Hanson <[email protected]>

* microcode/interp.c[9.72]:
Further restrict application of records: the type that appears in the
record's zeroth slot must be a record whose length field is marked
with TC_TRUE. This allows a record to have another record be its type
without having to reserve the application-procedure slot in all
records.

* compiler/rtlgen/opncod.scm[4.50]:
Add inline coding for OBJECT-TYPE, PRIMITIVE-OBJECT-TYPE, and
PRIMITIVE-OBJECT-SET-TYPE. Change coding for %RECORD-LENGTH to not
assume that record length has type code zero.

1992-12-08 Chris Hanson <[email protected]>

* compiler/base/refctx.scm[1.2]:
DEFINE-STRUCTURE no longer allows NAMED to be used with an argument
unless TYPE is given.

1992-12-07 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/y300.lcl[1.23],
microcode/unxutl/Attic/y700.lcl[1.3]:
Add scmsig to "everything" rule.

* runtime/boot.scm[14.5], runtime/defstr.scm[14.20],
runtime/events.scm[14.3], runtime/io.scm[14.31],
runtime/make.scm[14.39], runtime/packag.scm[14.12],
runtime/record.scm[1.17], runtime/runtime.pkg[14.166],
runtime/scode.scm[14.15], runtime/unpars.scm[14.29],
runtime/version.scm[14.159]:
Rewrite record package and DEFINE-STRUCTURE macro to use the record
datatype rather than vectors.

* sf/usiexp.scm[4.12]:
Constant-fold STRING->SYMBOL.

1992-12-05 Chris Hanson <[email protected]>

* microcode/gccode.h[9.46], microcode/gctype.c[9.32],
microcode/types.h[9.33]:
Finish job of defining TC_RECORD type code.

1992-12-04 Chris Hanson <[email protected]>

* runtime/string.scm[14.8], runtime/string.scm[14.7]:
Undo last change: a substring cannot be upper or lower case unless
there is at least one character of that case in it. Rewrite
SUBSTRING-CAPITALIZED? to fix the bug properly.

1992-12-04 Nick Papadakis <[email protected]>

* microcode/unxutl/Attic/y300.lcl[1.22]:
Added GJS's signal-processing version of scheme

1992-12-03 Arthur Gleckler <[email protected]>

* edwin/unix.scm[1.31]:
Made MAYBE-WRITE-ENCRYPTED-FILE depend on ENABLE-ENCRYPTED-FILES
instead of ENABLE-COMPRESSED-FILES.

1992-12-03 Chris Hanson <[email protected]>

* runtime/uproc.scm[1.4]:
Add support for RECORD objects.

* cref/object.scm[1.5], runtime/infstr.scm[1.8],
runtime/lambda.scm[14.10], runtime/pathnm.scm[14.24],
runtime/uenvir.scm[14.30], sf/object.scm[4.4]:
Make explicitly-named structures have explicit type.

1992-12-03 Guillermo J. Rozas <[email protected]>

* compiler/machines/alpha/rulfix.scm[1.3]:
Upate to match changed interface to __divq and __remq.

1992-12-03 Nick Papadakis <[email protected]>

* microcode/unxutl/Attic/y700.lcl[1.2]:
Changed REAL_IS_DEFINED_DOUBLE to 1 for GJS
Added scmsig to ymakefile for GJS

* microcode/array.h[9.33]:
Changed REAL_IS_DEFINED_DOUBLE to 1

1992-12-02 Chris Hanson <[email protected]>

* compiler/base/make.scm[4.95], compiler/rtlgen/opncod.scm[4.49],
runtime/record.scm[1.16], runtime/record.scm[1.15],
runtime/record.scm[1.14], runtime/runtime.pkg[14.165],
runtime/runtime.pkg[14.164], runtime/version.scm[14.158],
sf/gconst.scm[4.15], sf/make.scm[4.25], sf/usiexp.scm[4.11]:
Add support for RECORD objects.

* microcode/interp.c[9.71], microcode/object.h[9.40],
microcode/vector.c[9.36], microcode/vector.c[9.35],
microcode/version.h[11.123]:
Add support for TC_RECORD data type.

* edwin/fill.scm[1.57]:
Fix fencepost error in paragraph fill.

1992-12-01 Guillermo J. Rozas <[email protected]>

* compiler/machines/alpha/rulfix.scm[1.2]:
Fix unbound variable.

* compiler/machines/alpha/compiler.pkg[1.5]:
Missed edit.

* edwin/dabbrev.scm[1.3]:
replace-match has its second argument negated in Edwin when compared
to GNU Emacs.

* runtime/string.scm[14.6]:
Change the definition of substring-lower-case? and
substring-upper-case? so that strings with no upper (lower) case
characters match. The previous definition required at least one lower
(upper) case character. Thus the empty string (or a string with only
non-alphabetic characters) is both lower and upper case, while it was
previously neither.

* edwin/regexp.scm[1.63]:
Switch the order of the capitalized and uppercased tests in
replace-match. It only makes a difference on strings of length 1, in
which case it preferes to capitalize.

* edwin/dabbrev.scm[1.2]:
Fix case replacement decision.

1992-11-30 Chris Hanson <[email protected]>

* microcode/x11base.c[1.42]:
Allow X primitives to accept nonnegative integers as pixel values.

1992-11-30 Guillermo J. Rozas <[email protected]>

* microcode/bitstr.c[9.52]:
Fix missing type in header for bit_string_set.

* microcode/bitstr.c[9.51]:
Add bit_string_set and extern allocate_bit_string and clear_bit_string
for the C back end.

1992-11-29 Brian A. LaMacchia <[email protected]>

* edwin/prompt.scm[1.156]:
Fixed bug in prompt-for-password.

1992-11-29 Guillermo J. Rozas <[email protected]>

* runtime/Attic/syntax.scm[14.19], runtime/debug.scm[14.32],
runtime/defstr.scm[14.19], runtime/infstr.scm[1.7],
runtime/lambda.scm[14.9], runtime/packag.scm[14.11],
runtime/pathnm.scm[14.23], runtime/record.scm[1.13],
runtime/scan.scm[14.5], runtime/uenvir.scm[14.29]:
Fix references to string->symbol in loading sequence to use the
primitive.

1992-11-25 Chris Hanson <[email protected]>

* edwin/process.scm[1.27]:
Can't use set-variable-default-value! during editor startup.

* edwin/dired.scm[1.135]:
Fix unused variable warning.

1992-11-25 Guillermo J. Rozas <[email protected]>

* edwin/edwin.pkg[1.107.1.1]:
Update DOS version to match Unix version 1.107.

* runtime/contin.scm[14.7]:
Fix CALL-WITH-CURRENT-CONTINUATION to be tail-recursive.

* microcode/hooks.c[9.47]:
Fix CALL-WITH-CURRENT-CONTINUATION to be tail-recursive.
Improve WITHIN-CONTROL-POINT to delay copying the stack.

* microcode/cmpintmd/hppa.h[1.37]:
GCC version 2.2.2 uses non-closure function pointers.

1992-11-24 Arthur Gleckler <[email protected]>

* edwin/sort.scm[1.6]:
Replace mark-temporary-right-inserting-copy with mark-temporary-copy.

* edwin/sort.scm[1.5]:
Better solution to previous fix.

* edwin/sort.scm[1.4]:
Fix bug that makes sort commands sometimes duplicate the text in the
sorted region.

1992-11-24 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.107]:
Add several commands: rcs-ci-locked-files, rcs-list-locked-files,
rcs-diff, and rcs-log. Also add new variable rcs-append-output, which
controls what happens to output to previous rcs commands when a new
one is executed.

* edwin/process.scm[1.26]:
Add variable shell-file-name and initialize it properly.

1992-11-24 Guillermo J. Rozas <[email protected]>

* microcode/xdebug.c[9.31]:
Update to match new interface to find_symbol.

* microcode/intern.c[9.53]:
Change the interface to find_symbol to allow char pointers to be
looked up in the obarray, thus there is no need to cons if there
is already a symbol by the name being checked.

* runtime/savres.scm[14.27]:
Close interrupt window in disk-restore: The continuation dumped must
have no interrupts enabled until after it resets the fixed objects
vector (containing the interrupt-handlers vector).

* microcode/fasload.c[9.67]:
Close interrupt window.

CScheme dumps an Scode combination whose operator is the continuation
object.

On restore, it checks for interrupts at the apply point, and if an
interrupt is taken, the fixed objects vector (containing the
interrupt-handlers vector) is invalid because it has not been set yet.

* microcode/utils.c[9.55]:
Setup_Interrupt is now careful to make sure that there is a valid
interrupt vector.

1992-11-23 Guillermo J. Rozas <[email protected]>

* edwin/artdebug.scm[1.21]:
Fix bug in last edit -- DEFINE-VARIABLE-LOCAL-VALUE! is not a macro.

* microcode/Attic/dossig.c[1.15]:
``i'' response to interactive interrupt handler clears the hard
attention counter.

* microcode/Attic/dossig.c[1.14]:
Fix typo.

* microcode/Attic/dosconio.c[1.9]:
Add interrupt flag to console_read to prevent infinite loop in interactive
interrupt handler.

* microcode/Attic/dosio.c[1.3]:
Add interrupt flag to dos_read to prevent infinite loop in interactive
interrupt handler.

* microcode/Attic/dossig.c[1.13]:
Some changes to be able to disable interrupts by using appropriate
environment variables.

* microcode/Attic/doskbd.c[1.12]:
Conditionalize x32 keyboard according to environment variable.

* microcode/Attic/dostrap.c[1.3]:
Print trapping pc and sp if there is no handler in an attempt to find
out what's happening with the spurious traps at boot time.

* microcode/boot.c[9.75]:
Disable interrupts at boot time.

1992-11-22 Guillermo J. Rozas <[email protected]>

* edwin/rename.scm[1.6]:
Test availability before exporting names.

* edwin/artdebug.scm[1.20]:
Update to match new define-major-mode

* edwin/edwin.pkg[1.106.1.1]:
Update to version 1.106.

1992-11-20 Brian A. LaMacchia <[email protected]>

* edwin/rmail.scm[1.26]:
Fixed a bug in rmail-cease-edit

* edwin/dired.scm[1.134]:
Made dired-encrypt-file use prompt-for-confirmed-password

* edwin/dired.scm[1.133]:
Updated mode help string.

1992-11-20 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.106], edwin/sort.scm[1.3]:
Fix typo.

* edwin/edwin.pkg[1.105], edwin/edwin.pkg[1.104], edwin/xcom.scm[1.10],
edwin/xcom.scm[1.9], edwin/xterm.scm[1.37], edwin/xterm.scm[1.36]:
Don't update window and icon names unless they have changed.

* edwin/sort.scm[1.2]:
Fix two bugs. Discard permanent marks when no longer needed.
Repaginate.

1992-11-20 Guillermo J. Rozas <[email protected]>

* runtime/advice.scm[14.11]:
Eliminate constant Scode object from compiled file.

* microcode/cmpint.c[1.56]:
Add CC_BLOCK_ENTRY_DISTANCE for the C back end.

1992-11-18 Chris Hanson <[email protected]>

* edwin/edwin.ldr[1.38], edwin/unix.scm[1.30]:
Move load of krypt option to "edwin.ldr".

* edwin/schmod.scm[1.30]:
Change syntax definitions of brackets and braces, to make them act
like parentheses.

* edwin/rmailsum.scm[1.29]:
When summary buffer is killed, delete pointer from RMAIL buffer to
summary buffer.

* edwin/rmail.scm[1.25]:
Fix bug in INSERT-INBOX-TEXT: when inbox was empty, random newline was
inserted.

1992-11-18 Guillermo J. Rozas <[email protected]>

* microcode/m/Attic/alpha.h[1.3], microcode/m/Attic/apoll68k.h[1.3],
microcode/m/Attic/hcx.h[1.2], microcode/m/Attic/hp9k300.h[1.10],
microcode/m/Attic/hp9k400.h[1.6], microcode/m/Attic/hp9k800.h[1.10],
microcode/m/Attic/i386.h[1.5], microcode/m/Attic/ibm032.h[1.2],
microcode/m/Attic/mips.h[1.7], microcode/m/Attic/next.h[1.5],
microcode/m/Attic/sun3.h[1.6], microcode/m/Attic/sun4.h[1.3],
microcode/m/Attic/umax.h[1.2], microcode/m/Attic/vax.h[1.5]:
Conditionalize according to PROC_TYPE.

* microcode/cmpint.c[1.55]:
Conditionalize according to CMPINT_USE_STRUCS.
The new version (not using strucs) does not need interface_to_scheme
and interface_to_C, which makes it easier to write.

* compiler/machines/bobcat/decls.scm[4.34]:
Fix typo in last edit.

* compiler/machines/alpha/compiler.pkg[1.4],
compiler/machines/alpha/decls.scm[1.3],
compiler/machines/alpha/machin.scm[1.3],
compiler/machines/bobcat/compiler.pkg[1.42],
compiler/machines/bobcat/decls.scm[4.33],
compiler/machines/bobcat/machin.scm[4.28],
compiler/machines/i386/compiler.pkg[1.14],
compiler/machines/i386/decls.scm[1.4],
compiler/machines/i386/machin.scm[1.15],
compiler/machines/mips/compiler.pkg[1.12],
compiler/machines/mips/decls.scm[1.7],
compiler/machines/mips/machin.scm[1.9],
compiler/machines/spectrum/compiler.pkg[1.40],
compiler/machines/spectrum/decls.scm[4.32],
compiler/machines/spectrum/machin.scm[4.26],
compiler/machines/vax/compiler.pkg[1.15],
compiler/machines/vax/decls.scm[4.10],
compiler/machines/vax/machin.scm[4.10],
compiler/rtlbase/rtlcon.scm[4.24], compiler/rtlbase/rtlty2.scm[4.10],
compiler/rtlgen/opncod.scm[4.48], compiler/rtlgen/rgrval.scm[4.20]:
Move some back-end-dependent stuff to back/asutl.
The C back end has its own replacement.

1992-11-17 Chris Hanson <[email protected]>

* edwin/make.scm[3.76]:
Install Matt Birkholz's changes.

* edwin/evlcom.scm[1.41]:
Don't allow minor modes to be set in prompt-for-expression mode.

* edwin/decls.scm[1.43], edwin/edwin.ldr[1.37], edwin/edwin.pkg[1.103],
edwin/modefs.scm[1.143]:
Add M-x dabbrev-expand.

* edwin/macros.scm[1.58]:
Add description to output of DEFINE-NAMED-STRUCTURE so that PP knows
how to print out these structures in a useful way.

* edwin/buffer.scm[1.160]:
Change SET-BUFFER-MAJOR-MODE! so it doesn't reset the buffer's alist.
Instead, the alist is only reset when the buffer is reset. Buffer
properties now differ from buffer-local variables in that they survive
a mode change.

* edwin/buffer.scm[1.159], edwin/bufmnu.scm[1.124],
edwin/c-mode.scm[1.51], edwin/c-mode.scm[1.50],
edwin/comint.scm[1.18], edwin/comint.scm[1.17],
edwin/dired.scm[1.132], edwin/filcom.scm[1.173],
edwin/info.scm[1.115], edwin/info.scm[1.114], edwin/intmod.scm[1.53],
edwin/midas.scm[1.17], edwin/pasmod.scm[1.46], edwin/rmail.scm[1.24],
edwin/rmailsum.scm[1.28], edwin/schmod.scm[1.29],
edwin/schmod.scm[1.28], edwin/sendmail.scm[1.17],
edwin/shell.scm[1.11], edwin/telnet.scm[1.8], edwin/texcom.scm[1.38],
edwin/texcom.scm[1.37], edwin/tximod.scm[1.18]:
Fixes to last set of changes.

1992-11-16 Brian A. LaMacchia <[email protected]>

* edwin/dired.scm[1.129]:
Added dired-krypt -- encrypts and decrypts files using krypt.scm.

1992-11-16 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.158], edwin/bufmnu.scm[1.123],
edwin/c-mode.scm[1.49], edwin/comint.scm[1.16],
edwin/compile.scm[1.2], edwin/dired.scm[1.131],
edwin/evlcom.scm[1.40], edwin/filcom.scm[1.172],
edwin/fileio.scm[1.113], edwin/info.scm[1.113],
edwin/intmod.scm[1.52], edwin/macros.scm[1.57],
edwin/midas.scm[1.16], edwin/pasmod.scm[1.45], edwin/rmail.scm[1.23],
edwin/rmailsum.scm[1.27], edwin/schmod.scm[1.27],
edwin/sendmail.scm[1.16], edwin/shell.scm[1.10],
edwin/telnet.scm[1.7], edwin/texcom.scm[1.36],
edwin/tximod.scm[1.17]:
Change MODE-INITIALIZATION (for both major and minor modes) to accept
the buffer as its argument; previously mode initializations had no
arguments. Rewrite all mode initializations to be lambda expressions
with explicit bindings for the buffer argument. Eliminate notion of
BUFFER-INITIALIZATIONS -- buffer's mode is now set immediately when
SET-BUFFER-MAJOR-MODE! or SET-BUFFER-MINOR-MODE! is called.

---> NOTE WELL!!! <---

All mode hooks have been changed to take the buffer as an argument --
this is an incompatible change that will affect anyone who uses a mode
hook in their initialization file.

1992-11-16 Guillermo J. Rozas <[email protected]>

* edwin/dired.scm[1.130]:
Move load-option from top-level to inside the encryption/decryption
command. In this way krypt is only loaded when first accessed, and
not at edwin load time.

1992-11-15 Chris Hanson <[email protected]>

* edwin/filcom.scm[1.171], edwin/fileio.scm[1.112],
edwin/rmail.scm[1.22]:
Redesign AFTER-FIND-FILE and related procedures to be more like GNU
Emacs. Implement M-x recover-file.

1992-11-14 Chris Hanson <[email protected]>

* edwin/wincom.scm[1.114]:
Fix typo in previous change.

1992-11-14 Guillermo J. Rozas <[email protected]>

* compiler/base/asstop.scm[1.3], compiler/base/utils.scm[4.18],
compiler/machines/alpha/compiler.pkg[1.3],
compiler/machines/bobcat/compiler.pkg[1.41],
compiler/machines/i386/compiler.pkg[1.13],
compiler/machines/mips/compiler.pkg[1.11],
compiler/machines/spectrum/compiler.pkg[1.39],
compiler/machines/vax/compiler.pkg[1.14]:
Add hook for C back end so that generated labels are legal C labels.

1992-11-13 Chris Hanson <[email protected]>

* edwin/wincom.scm[1.113]:
Add optional argument to pop-up-buffer, which disables use of current
window.

* edwin/dos.scm[1.5], edwin/fileio.scm[1.111], edwin/unix.scm[1.29]:
Make backup-by-copying of symbolic link be dependent on a variable.

* edwin/modefs.scm[1.142], edwin/syntax.scm[1.76]:
Add M-x describe-syntax.

* edwin/loadef.scm[1.19], edwin/manual.scm[1.11]:
Add variable manual-command to override the manual program name.

* edwin/hlpcom.scm[1.105]:
Change list of help commands to include describe-syntax.

* edwin/fill.scm[1.56]:
Redefine AUTO-FILL-BREAK? to use Emacs definition.

* edwin/curren.scm[1.105]:
Change setting of buffer-point to conform to Emacs.

* edwin/comint.scm[1.15]:
Add M-x comint-send-invisible and M-x comint-send-char.

* edwin/bufmnu.scm[1.122]:
Add buffer-menu-mode-hook, and set truncate-lines true in buffer-menu
buffers.

1992-11-12 Brian A. LaMacchia <[email protected]>

* edwin/rmail.scm[1.21], edwin/rmailsrt.scm[1.8],
edwin/rmailsum.scm[1.26]:
writeable -> writable

1992-11-12 Chris Hanson <[email protected]>

* edwin/bufcom.scm[1.99], edwin/buffer.scm[1.157],
edwin/bufmnu.scm[1.121], edwin/debuge.scm[1.49],
edwin/dired.scm[1.128], edwin/evlcom.scm[1.39],
edwin/filcom.scm[1.170], edwin/fileio.scm[1.110],
edwin/info.scm[1.112], edwin/modlin.scm[1.15],
edwin/struct.scm[1.81], edwin/techinfo.scm[1.3]:
Fix spelling: "writeable" -> "writable".

1992-11-12 Guillermo J. Rozas <[email protected]>

* runtime/runtime.pkg[14.163], runtime/savres.scm[14.26],
runtime/usrint.scm[1.3]:
Fix bug in disk-save/disk-restore by which bands dumped from emacs
were not restartable.

1992-11-11 Brian A. LaMacchia <[email protected]>

* edwin/rmailsum.scm[1.25]:
Fixed a bug in rmail-make-basic-summary-line.

1992-11-10 Chris Hanson <[email protected]>

* microcode/utabmd.scm[9.64]:
Do not set MICROCODE-TERMINATION-PROCEDURES slot of fixed objects
vector in this file; the runtime system will take care of it. This
was a problem because the existing termination procedures were being
erased at DISK-RESTORE.

1992-11-09 Brian A. LaMacchia <[email protected]>

* edwin/rmailsum.scm[1.24]:
Changed the way summary lines are constructed.
Use the first 25 characters of the extracted-name, not
the last 25 characters.

1992-11-09 Chris Hanson <[email protected]>

* edwin/debuge.scm[1.48]:
Disregard minibuffers in SAVE-EDITOR-FILES.

* edwin/debuge.scm[1.47], edwin/debuge.scm[1.46]:
Fix two bugs in SAVE-EDITOR-FILES.

1992-11-09 Guillermo J. Rozas <[email protected]>

* compiler/machines/alpha/rules4.scm[1.2],
compiler/machines/bobcat/rules4.scm[4.13],
compiler/machines/i386/rules4.scm[1.7],
compiler/machines/mips/rules4.scm[1.3],
compiler/machines/spectrum/rules4.scm[4.12],
compiler/machines/vax/rules4.scm[4.4],
compiler/rtlbase/rtlcon.scm[4.23], compiler/rtlbase/rtlty1.scm[4.20],
compiler/rtlgen/rgproc.scm[4.13], compiler/rtlgen/rgrval.scm[4.19],
compiler/rtlgen/rgstmt.scm[4.16], compiler/rtlgen/rtlgen.scm[4.29]:
Add label argument to all interpreter calls for the C back-end.

1992-11-08 Guillermo J. Rozas <[email protected]>

* runtime/global.scm[14.44]:
Allow (cd)

* runtime/scode.scm[14.14]:
Re-define string->symbol. The new version now copies the string if
the symbol is being interned for the first time. In this way string
mutation of the string does not affect the symbol.

* sf/gconst.scm[4.14]:
Remove string->symbol from integrable primitives list.
The runtime system version now copies the string if the symbol is
being interned for the first time. In this way string mutation of
the string does not affect the symbol.

* compiler/machines/alpha/machin.scm[1.2],
compiler/machines/bobcat/machin.scm[4.27],
compiler/machines/i386/machin.scm[1.14],
compiler/machines/mips/machin.scm[1.8],
compiler/machines/spectrum/machin.scm[4.25],
compiler/machines/vax/machin.scm[4.9],
compiler/rtlgen/rgrval.scm[4.18]:
Conditionalization for the C back end.

1992-11-07 Guillermo J. Rozas <[email protected]>

* edwin/edwin.pkg[1.102.1.1]:
Add sort to match the Unix version.

1992-11-06 Chris Hanson <[email protected]>

* compiler/machines/mips/compiler.pkg[1.10]:
Export variables controlling debugging info generation to global env.

1992-11-06 Guillermo J. Rozas <[email protected]>

* sf/subst.scm[4.8]:
Fix bug in last set of changes.

1992-11-05 Brian A. LaMacchia <[email protected]>

* edwin/rmail.scm[1.20]:
Fixed rmail-cease-edit to remove the cached summary line
(in the message headers). Forces rmail-summary mode to recalc
the summary line next time it is needed. Thus, if you now edit
the Subject: line of a message, the summary line will change to
reflect this.

1992-11-05 Chris Hanson <[email protected]>

* edwin/loadef.scm[1.18]:
Add SORT library (from arthur).

* rcs/logmer.scm[1.5]:
Eliminate references to obsolete primitives. Eliminate references to
MAPCAN.

* edwin/loadef.scm[1.17], edwin/print.scm[1.12]:
Add new editor variable LPR-PROCEDURE to allow complete customization
of the printing method.

1992-11-05 Guillermo J. Rozas <[email protected]>

* runtime/runtime.pkg[14.162]:
New version of apply.
conversion to pathname objects during a directory-read operation no
longer attemps to expand environment variables, etc.

1992-11-04 Guillermo J. Rozas <[email protected]>

* sf/make.scm[4.24], sf/object.scm[4.3], sf/pardec.scm[4.6],
sf/reduct.scm[4.3], sf/sf.pkg[4.7], sf/subst.scm[4.7],
sf/toplev.scm[4.9], sf/usiexp.scm[4.10]:
Fix bugs in the implementation of REDUCE-OPERATOR and extend
capabilities so that all the optimizations performed by
USUAL-INTEGRATIONS can be expressed as declarations.

* microcode/cmpint.c[1.54]:
Fix back-out problem in compiled APPLY.

1992-11-03 Guillermo J. Rozas <[email protected]>

* runtime/version.scm[14.157]:
Provide a new, faster version of apply.
Prevent directory expansion while reading directories.

* runtime/dosdir.scm[1.6], runtime/dospth.scm[1.17],
runtime/unxdir.scm[14.10], runtime/unxpth.scm[14.13]:
Prevent directory expansion while reading directories.

* runtime/dosprm.scm[1.16]:
Eliminate a warning from SF.

* runtime/Attic/syntax.scm[14.18], runtime/error.scm[14.32],
runtime/global.scm[14.43], runtime/make.scm[14.38],
runtime/parse.scm[14.19], runtime/uerror.scm[14.34],
runtime/unsyn.scm[14.13]:
Provide a new, faster version of apply.

* microcode/cmpauxmd/hppa.m4[1.24]:
Recode fixnum_remainder because the FREM instruction has always been
emulated and has been dropped from the architecture.

1992-11-01 Arthur Gleckler <[email protected]>

* edwin/decls.scm[1.42], edwin/ed-ffi.scm[1.28],
edwin/edwin.pkg[1.102]:
Add new sorting package.

1992-10-31 Guillermo J. Rozas <[email protected]>

* microcode/bintopsb.c[9.55]:
Declare expt as an int instead of long so that frexp won't complain.

* microcode/cmpauxmd/hppa.m4[1.23]:
Fix bug in remainder. FPREM can return negative values for positive
arguments since it is defined as follows:

FPREM (x, y) = x - (n * y)

where n is the nearest integer to x/y and thus n*y can have an
absolute value greater than x.

1992-10-30 Arthur Gleckler <[email protected]>

* edwin/unix.scm[1.28]:
Comment out buffer auto-save disabling that doesn't work anyway
because we (CPH and Arthur) don't know how to fix it.

1992-10-27 Guillermo J. Rozas <[email protected]>

* microcode/cmpint.c[1.53], microcode/hooks.c[9.46],
microcode/version.h[11.122]:
Add a mechanism for primitives to apply compiled procedures without
aborting to the interpreter (canonicalizing context).

* microcode/cmpint.c[1.52]:
Teach comutil_apply about arity dispatchers.

* microcode/interp.c[9.70]:
Teach internal_apply about arity dispatchers.

1992-10-26 Chris Hanson <[email protected]>

* edwin/telnet.scm[1.6]:
Initialize process-filter in M-x telnet rather than in the mode
initialization for telnet mode. Previously there was no guarantee
that the process was started by the time the mode initialization was
performed.

1992-10-24 Guillermo J. Rozas <[email protected]>

* compiler/base/utils.scm[4.17]:
The separator in labels is not a constant.

* compiler/back/lapgn1.scm[4.13], compiler/back/lapgn3.scm[4.11],
compiler/base/asstop.scm[1.2], compiler/base/toplev.scm[4.47]:
Move a few things around to accomodate the C back end.

1992-10-21 Guillermo J. Rozas <[email protected]>

* microcode/prename.h[1.6]:
Eliminate old alias.

* microcode/Attic/dosfs.c[1.4], microcode/osfs.h[1.6],
microcode/prosfs.c[1.11], microcode/uxfs.c[1.9],
runtime/uerror.scm[14.33]:
Eliminate fossil primitives.

* microcode/Attic/prdosenv.c[1.9], microcode/pruxenv.c[1.13],
microcode/uxenv.c[1.8]:
Eliminate extra indirection.

* microcode/Attic/dosenv.c[1.2], microcode/Attic/prdosenv.c[1.8]:
Move various primitives from prosenv.c to pruxenv.c and prdosenv.c .

1992-10-20 Guillermo J. Rozas <[email protected]>

* microcode/osenv.h[1.2], microcode/prosenv.c[1.7],
microcode/pruxenv.c[1.12]:
Move various primitives from prosenv.c to pruxenv.c and prdosenv.c .

* edwin/edwin.ldr[1.36]:
Make ->environment not fail when the file will not be loaded.

* edwin/macros.scm[1.56]:
Change definition of define-command so commands can share
descriptions.

* edwin/calias.scm[1.14], edwin/decls.scm[1.41], edwin/edwin.ldr[1.35],
edwin/edwin.pkg[1.101.1.1], edwin/edwin.pkg[1.101],
edwin/make.scm[3.75], edwin/modefs.scm[1.141]:
Re-arrange some stuff to make the DOS load smaller.

* edwin/bios.scm[1.3]:
Microcode Initialize only sets internal variables, and exit only clears them.
Neither does any screen operations.

Change the console driver in Edwin to accomodate the microcode
changes.

* microcode/Attic/dosint10.c[1.7]:
Initialize only sets internal variables, and exit only clears them.
Neither does any screen operations.

* microcode/Attic/dosint10.c[1.6]:
Fix bug in background color handling. The attributes were not being
constructed correctly.

1992-10-19 Guillermo J. Rozas <[email protected]>

* compiler/base/make.scm[4.94],
compiler/machines/alpha/compiler.pkg[1.2],
compiler/machines/alpha/decls.scm[1.2],
compiler/machines/bobcat/compiler.pkg[1.40],
compiler/machines/bobcat/decls.scm[4.32],
compiler/machines/bobcat/decls.scm[4.31],
compiler/machines/i386/compiler.pkg[1.12],
compiler/machines/i386/decls.scm[1.3],
compiler/machines/mips/compiler.pkg[1.9],
compiler/machines/mips/decls.scm[1.6],
compiler/machines/spectrum/compiler.pkg[1.38],
compiler/machines/spectrum/decls.scm[4.31],
compiler/machines/vax/compiler.pkg[1.13],
compiler/machines/vax/decls.scm[4.9]:
Split toplev and move a couple of things around to make integration of
the C back end, and other back ends that use native post-processing,
easier.

* compiler/back/lapgn3.scm[4.10], compiler/back/linear.scm[4.15]:
Move set-current-branches! from lapgn3.scm to linear.scm.

* compiler/base/toplev.scm[4.46]:
Split toplev.scm into two pieces:
toplev.scm
asstop.scm

toplev includes all the top level codes and all the structure through
lap linearization.

asstop contains the assembler and linker top-level.

This allows an alternate back end (e.g. C, or one that uses the
machine's native assembler) to be substituted.

* compiler/base/crstop.scm[1.11]:
Move last reference to base/macros.scm .

* compiler/base/macros.scm[4.12]:
Move last reference here.

1992-10-17 Guillermo J. Rozas <[email protected]>

* edwin/basic.scm[1.125]:
QUIT not yet implemented under DOS.

* edwin/bios.scm[1.2]:
Use bios:initialize! instead of bios:enter!, with environment variable
lookup done in Scheme.

Flush bios:discard!

Make SF happy.

* microcode/Attic/doskbd.c[1.11]:
Do not install keyboard hooks if the standard input is not the
keyboard.

* microcode/Attic/dosint10.c[1.5]:
Add range-checking to bios:INITIALIZE!

* runtime/site.scm.dos[1.11]:
Use set-environment-variable-default! instead of an event receiver.
In this way the order is guaranteed to be correct.

* runtime/dosprm.scm[1.15]:
Add definition of set-environment-variable-default!

* runtime/make.scm[14.37]:
Reorder initialization so that environment variables are reset before
the command line is processed.

* microcode/Attic/dosint10.c[1.4], microcode/Attic/dosint10.h[1.2]:
Get rid of environment variables in the microcode.

* microcode/sysprim.c[9.37]:
Flush set-run-light! -- It has not been used in a while.

1992-10-15 Guillermo J. Rozas <[email protected]>

* compiler/machines/alpha/rules3.scm[1.3]:
Add stack checking code to closures (they do not use interrupt-check).

* compiler/machines/alpha/lapgen.scm[1.2]:
Add definition of reg:stack-guard.

* compiler/machines/alpha/rules3.scm[1.2],
compiler/machines/i386/rules3.scm[1.24],
compiler/machines/vax/rules3.scm[4.11]:
Update interrupt-check to avoid generating stack checks when entering
continuations and leaf procedures.

1992-10-12 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dosx32.c[1.5]:
Make X32_DPMI_system raise the global interrupt on return, in case an
interrupt was missed while the handler was disabled.

1992-10-08 Guillermo J. Rozas <[email protected]>

* runtime/dospth.scm[1.16]:
Add hook/dos/end-of-line-string.
Allow empty string as the first component of an absolute pathname to
kludge shared network file systems.

* runtime/dosprm.scm[1.14]:
Change definitions of dos/user-home-directory and
dos/current-user-name not to signal an error.
In this way, restarting scheme won't fail if the environment variables
are not set.

1992-10-07 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dosconio.c[1.8], microcode/Attic/dosexcp.c[1.5],
microcode/Attic/dosinsn.h[1.2], microcode/Attic/dosint10.c[1.3],
microcode/Attic/dosio.c[1.2], microcode/Attic/doskbd.c[1.10],
microcode/Attic/dossig.c[1.12], microcode/Attic/dossys.c[1.4],
microcode/Attic/dossys.h[1.2], microcode/Attic/dostty.c[1.3],
microcode/Attic/dosx32.c[1.4], microcode/Attic/msdos.h[1.3]:
Remove unused DOS code.
Clean up some interrupt code.

* compiler/machines/i386/make.scm[1.3]:
Stack checks are disabled on the 386 by default because they are not
needed under DPMI/Windows.

1992-10-02 Guillermo J. Rozas <[email protected]>

* microcode/Attic/prdosenv.c[1.7]:
Flush spurious primitives.

* runtime/dosprm.scm[1.13]:
Get rid of uses of spurious primitives.

1992-10-01 Arthur Gleckler <[email protected]>

* edwin/bufcom.scm[1.98]:
Fix bug that made SWITCH-TO-BUFFER, SWITCH-TO-BUFFER-OTHER-WINDOW,
and SWITCH-TO-BUFFER-OTHER-SCREEN prompt with the current buffer as
default instead of the previous buffer.

1992-10-01 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/y300.lcl[1.21]:
Use -ldvio instead of -lndvio.

1992-10-01 Guillermo J. Rozas <[email protected]>

* microcode/Attic/prdosenv.c[1.6]:
Add missing call to long_to_integer.

* microcode/Attic/dosx32.c[1.3], microcode/Attic/prdosenv.c[1.5]:
Add rudimentary (synchronous) subprocesses.

1992-09-30 Chris Hanson <[email protected]>

* compiler/machines/spectrum/rulfix.scm[4.44]:
Fix typo.

* compiler/base/switch.scm[4.20],
compiler/machines/bobcat/rules3.scm[4.36],
compiler/machines/mips/rules3.scm[1.14]:
Turn on COMPILER:GENERATE-STACK-CHECKS? by default.

* compiler/base/make.scm[4.93], compiler/rtlgen/rtlgen.scm[4.28]:
Tweak definition of RTL-PROCEDURE/STACK-LEAF? to be true only when the
procedure pushes a continuation, and to consider inline-coded descendant
procedures as part of the ancestor.

* compiler/machines/spectrum/rules3.scm[4.37]:
Don't generate stack checks for continuations or for procedures that
have STACK-LEAF? true.

* compiler/rtlbase/rtlobj.scm[4.10], compiler/rtlgen/rtlgen.scm[4.27]:
Add STACK-LEAF? element to RTL procedure objects. This element, if
true, says that the procedure does not push any stack frames.

* 6001/floppy.scm[1.11]:
Adjust presentation appearance.

* 6001/floppy.scm[1.10]:
Confirm before deleting any files from floppy disk.

* 6001/edextra.scm[1.15]:
Use SELECT-BUFFER-NOT-FOUND-HOOKS to change behavior of C-x b so that
it always creates buffers that are associated with files.

* edwin/bufcom.scm[1.97]:
Fix definition of SELECT-BUFFER-NOT-FOUND-HOOKS so that the procedures
in it must return either a buffer or #F.

* edwin/fileio.scm[1.109], edwin/modefs.scm[1.140]:
Make PATHNAME-DEFAULT-MODE public, so that it can be used to set the
mode of a buffer based on its name rather than its pathname. Add new
editor variable AUTO-MODE-ALIST with same semantics as in GNU Emacs;
this new variable overrides FILE-TYPE-TO-MAJOR-MODE.

* edwin/bufcom.scm[1.96]:
Fix sense of SELECT-BUFFER-CREATE.

* edwin/bufcom.scm[1.95]:
Add editor variable SELECT-BUFFER-NOT-FOUND-HOOKS to permit
customization of PROMPT-FOR-BUFFER when the user selects a
non-existent buffer.

1992-09-30 Guillermo J. Rozas <[email protected]>

* microcode/Attic/prdosenv.c[1.4]:
Add system under X32 but not DPMI (does not interact well with the
Scheme timer interrupt).

* microcode/dosutl/Attic/makefile[1.4]:
Remove HAS_COMPILER_SUPPORT and TYPE_CODE_LENGTH. They are now
defined in config.h .

* microcode/Attic/dossig.c[1.11]:
Cast Stack_Guard before passing it to DPMI_alloc_scheme_stack.

* runtime/numint.scm[1.3]:
Change invocations of utilities from arith to include the names of
procedures.

* edwin/dos.scm[1.4]:
Eliminate spurious variable binding.

* microcode/Attic/doskbutl.asm[1.6]:
Improve the real-mode keyboard interrupt handler to eliminate some
jumps.

* microcode/option.c[1.30]:
Bump 386 SMALL_CONSTANT and EDWIN_CONSTANT by 5.

* edwin/filcom.scm[1.169]:
Change read-buffer-interactive to invoke find-file-not-found-hooks if
the file is not found (but not if the file is not readable).

Previously it was not being invoked at all because of the way that it
and read-buffer work.

1992-09-29 Chris Hanson <[email protected]>

* edwin/intmod.scm[1.51]:
Use MAJOR-MODE-LOCKED feature to prevent users from frobbing the major
mode of a REPL buffer. Conditionalize this feature by the editor
variable REPL-MODE-LOCKED, normally enabled.

* edwin/bufcom.scm[1.94], edwin/buffer.scm[1.156]:
Add MAJOR-MODE-LOCKED feature.

1992-09-28 Chris Hanson <[email protected]>

* compiler/machines/bobcat/rules3.scm[4.35]:
Reimplement in-line combined stack and interrupt check, now that
microcode will support it properly.

* compiler/machines/spectrum/rules3.scm[4.36]:
Eliminate an additional instruction in the in-line combined stack and
interrupt check; total is now four instructions.

1992-09-26 Chris Hanson <[email protected]>

* compiler/machines/spectrum/rules3.scm[4.35]:
Tighten up the code sequence for the combined interrupt and stack
check. New sequence is same number of instructions, but eliminates a
load-delay interlock. Sequence can perhaps be shortened by one
additional instruction.

* compiler/machines/mips/rules3.scm[1.13]:
Tighten up the code sequence for the combined interrupt and stack
check. New sequence is 6 instructions rather than former 8.

* 6001/arith.scm[1.3]:
Don't refer to COMPLEX:COMPLEX? here -- use NUMBER? instead.

* compiler/machines/spectrum/rules3.scm[4.34]:
The microcode no longer knows how many bytes the interrupt-check
sequence is, so allow in-line stack checks again.

* microcode/Attic/config.h[9.77], microcode/Attic/config.h[9.76]:
Add conditional to allow this file to be included multiple times.

* microcode/Attic/dossig.c[1.10], microcode/cmpint.c[1.51],
microcode/cmpint.c[1.50], microcode/cmpintmd/alpha.h[1.3],
microcode/cmpintmd/hppa.h[1.34], microcode/cmpintmd/i386.h[1.19],
microcode/cmpintmd/mc68k.h[1.32], microcode/cmpintmd/mips.h[1.16],
microcode/cmpintmd/vax.h[1.6], microcode/default.h[9.39],
microcode/extern.h[9.49], microcode/gc.h[9.32],
microcode/interp.c[9.69], microcode/interp.h[9.36],
microcode/intrpt.h[1.11], microcode/stack.h[9.33],
microcode/storage.c[9.52], microcode/utils.c[9.54],
microcode/version.h[11.121]:
Change `(Registers[REGBLOCK_STACK_GUARD])' to be a cache for the C
variable `Stack_Guard'. Change COMPILER_SETUP_INTERRUPT so that
compiled code doesn't signal GC or stack-overflow interrupts when the
corresponding interrupt enable bit is not set. Change compiled-code
interface to assume this, and eliminate back-out code; this eliminates
the _SKIPPED_CHECK_OFFSET constants built into the microcode, allowing
the compiled code more coding flexibility.

* microcode/Attic/config.h[9.75], microcode/gctype.c[9.31],
microcode/m/Attic/alpha.h[1.2], microcode/m/Attic/apoll68k.h[1.2],
microcode/m/Attic/hp9k300.h[1.9], microcode/m/Attic/hp9k400.h[1.5],
microcode/m/Attic/hp9k800.h[1.9], microcode/m/Attic/i386.h[1.4],
microcode/m/Attic/mips.h[1.6], microcode/m/Attic/next.h[1.4],
microcode/m/Attic/sun3.h[1.5], microcode/m/Attic/vax.h[1.4],
microcode/option.c[1.29], microcode/unxutl/Attic/ymkfile[1.60],
microcode/unxutl/Attic/ymkfile[1.59], microcode/wsize.c[9.32]:
Move definitions of TYPE_CODE_LENGTH and HAS_COMPILER_SUPPORT out of
the command line and into "config.h"

1992-09-26 Guillermo J. Rozas <[email protected]>

* runtime/dospth.scm[1.15]:
Allow UNSPECIFIC as a directory specifier.
That way we can construct pathnames for DOS devices (e.g. NUL, CON,
etc.)

1992-09-25 Chris Hanson <[email protected]>

* microcode/m/Attic/hp9k400.h[1.4]:
Remove some now-unnecessary compiler switches.

* compiler/machines/bobcat/dassm2.scm[4.20],
compiler/machines/bobcat/lapgen.scm[4.46],
compiler/machines/bobcat/rules3.scm[4.34],
microcode/cmpauxmd/mc68k.m4[1.23], microcode/cmpintmd/mc68k.h[1.31]:
Implement close-coded stack and interrupt check.

* 6001/edextra.scm[1.14]:
Override DEFAULT-HOMEDIR-DIRECTORY to be the "work" directory so that
buffers with no natural directory end up being in a reasonable place.

* edwin/hlpcom.scm[1.104], edwin/paths.scm[1.13],
edwin/sendmail.scm[1.15]:
Add binding of DEFAULT-HOMEDIR-PATHNAME to allow 6.001 to override the
default "home" directory.

1992-09-25 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dossig.c[1.9], microcode/Attic/dosxcutl.asm[1.7]:
Add critical-error handling outside of DPMI (Windows).

* microcode/Attic/dossig.c[1.8]:
Work around bug in X32 by which it swaps ss if it is not what it
expected when a trap occurs.

We now use DPMI exceptions directly under DPMI rather than X32
exceptions.

* microcode/Attic/dosxcutl.asm[1.6]:
Remove unnecessary segment overrides.

1992-09-24 Brian A. LaMacchia <[email protected]>

* edwin/rmailsrt.scm[1.7]:
more bug fixes; prevented rmail-sort-messages from keeping multiple
strings with message text around; improved date handling

1992-09-24 Chris Hanson <[email protected]>

* compiler/machines/bobcat/compiler.pkg[1.39]:
Export variables controlling generation of debugging info files.

* 6001/floppy.scm[1.9]:
Bypass use of shell for DOS file commands. This obviates the need for
quoting.

* 6001/floppy.scm[1.8]:
Quote unusual characters in filenames that are passed to the shell.

* microcode/primutl.c[9.59], microcode/primutl.c[9.58]:
Change typing of procedure to match arguments that are normally passed
to it.

* microcode/Attic/dosconio.c[1.7], microcode/boot.c[9.74]:
Use incorrect typing of references to `make_primitive' to eliminate
warning messages.

* microcode/Attic/oscond.h[1.12]:
Add conditionalization that works with ANSI cpp when `unix' isn't
defined.

1992-09-24 Guillermo J. Rozas <[email protected]>

* edwin/edwin.pkg[1.100.1.1]:
Update version that uses the old debugger to match version 1.100.

1992-09-23 Guillermo J. Rozas <[email protected]>

* edwin/decls.scm[1.40], edwin/edwin.ldr[1.34], edwin/edwin.pkg[1.100]:
Split dired and comint into system-independent and system-dependent
portions. This eliminates the need for most process stubs under DOS.

* edwin/dos.scm[1.3], edwin/unix.scm[1.27]:
Move dired system-dependent stuff elsewhere (dos.scm, unix.scm, dirunx.scm).

* edwin/dired.scm[1.127]:
Move system-dependent stuff elsewhere (dos.scm, unix.scm, dirunx.scm).

* edwin/dosproc.scm[1.2]:
Remove most of the contents. dired and comint have been cleaned so
that fewer bindings are needed.

* edwin/comint.scm[1.14], edwin/make.scm[3.74],
edwin/process.scm[1.25]:
Split comint into history manipulation and subprocess manipulation.
History is used by intmod, but the rest is not available under DOS.

* edwin/edwin.sf[1.11]:
Update date.

1992-09-22 Chris Hanson <[email protected]>

* runtime/x11graph.scm[1.25]:
Fix implementation of X-GRAPHICS/DISCARD-EVENTS.

* 6001/6001.cbf[1.5]:
Re-enable stack checks -- they're fixed now.

* microcode/cmpauxmd/hppa.m4[1.22]:
Fix typo in sense of conditional branch.

* runtime/infutl.scm[1.44]:
COMPRESSED-LOADER now takes a second argument, the pathname-type of
the uncompressed file to be generated when *SAVE-UNCOMPRESSED-FILES?*
is true. This is necessary to allow COMPRESSED-LOADER to be used to
load ".bcs" files as well as ".bci" files.

* 6001/arith.scm[1.2]:
Changes to match those to runtime system's arithmetic.

1992-09-21 Chris Hanson <[email protected]>

* 6001/make.scm[15.20], runtime/pp.scm[14.27],
runtime/runtime.pkg[14.161], runtime/unpars.scm[14.28]:
Add hack to eliminate (lambda #f ...).

* runtime/arith.scm[1.25]:
Some n-ary procedures return their argument when they are passed
exactly one. Previously these procedures performed no type-checking
on such arguments; these checks have been added.

1992-09-19 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dossig.c[1.7]:
Fix DPMI_stack_fault_handler to use INT_Stack_Overflow.

* microcode/Attic/dosexcp.c[1.4]:
Fix limit handling in DPMI_alloc_scheme_stack.

1992-09-18 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.160], runtime/x11graph.scm[1.24]:
Implement new procedure X-GRAPHICS/DISCARD-EVENTS to discard mouse
button events that are in the queue.

* edwin/filcom.scm[1.168]:
Signal error if user tries to set the pathname of a buffer to a
directory.

1992-09-18 Guillermo J. Rozas <[email protected]>

* microcode/daemon.c[9.30]:
Use OS_channel_close_noerror instead of OS_channel_close in
CLOSE-LOST-OPEN-FILES.

* microcode/artutl.c[1.11]:
Fix typo.

* microcode/artutl.c[1.10]:
Can't use signed as a variable name.

* microcode/prosenv.c[1.6]:
Use ulong_to_integer instead of long_to_integer to handle clock wrap
around correctly.

* microcode/artutl.c[1.9], microcode/extern.h[9.48]:
Add ulong_to_integer and integer_to_ulong.

* microcode/bignum.c[9.38], microcode/bignum.h[9.28]:
Add ulong_to_bignum and bignum_to_ulong.

* runtime/dosprm.scm[1.12]:
Add the arities for all the primitives so the file can be sf'd on a
non-DOS.

* runtime/unxprm.scm[1.22]:
Fix bug in last edit.

* runtime/unxprm.scm[1.21]:
Add the arities for all the primitives so the file can be sf'd on a
non-Unix.

* microcode/Attic/dosexcp.c[1.3], microcode/Attic/dossig.c[1.6],
microcode/Attic/dostrap.c[1.2]:
Add hardware stack overflow protection under DPMI.

* microcode/hooks.c[9.45], microcode/stack.h[9.32]:
Add STACK_RESET macro for machines/OSs in which we have hardware stack
protection.

* microcode/cmpauxmd/i386.m4[1.28]:
Initialize Scheme_Stack_Segment_Selector only if it has not been
initialized.

* microcode/cmpauxmd/i386.m4[1.27]:
Add Scheme_Stack_Segment_Selector for DOS, and make sure that esp is
loaded immediately after ss because the 386 architecture masks
interrupts for one instruction after modifying ss.

* microcode/cmpintmd/i386.h[1.18]:
Rename improperly declared extern (i386_interface_initialize.

* edwin/edwin.pkg[1.99.1.1]:
Package file for alternate debugger.

1992-09-17 Chris Hanson <[email protected]>

* 6001/floppy.scm[1.7]:
Add code to recognize the "write-protected" error when writing to the
floppy, and to give a more succinct error message.

* edwin/prompt.scm[1.155]:
In TYPEIN-EDIT-OTHER-WINDOW, don't return a window that has been
deleted. Always return *some* window, even if all of the saved
windows has been deleted.

* 6001/edextra.scm[1.13]:
Add code to detect non-DOS filenames and discourage their use.

1992-09-17 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dossys.c[1.3]:
int 21h 60h only writes 128 bytes.

* runtime/thread.scm[1.7]:
Fix the adjustment for real-time timer wrap around.

* runtime/thread.scm[1.6]:
Add a patch to deliver-timer-events for real-time timer wrap-around.

* runtime/dosprm.scm[1.11]:
Flush references to indirect primitives. They do not exist for DOS.

* microcode/Attic/prdosfs.c[1.3]:
Flush indirect primitives. They make no sense in DOS.

* runtime/dosprm.scm[1.10]:
Add file-access-time-direct, file-access-time-indirect,
file-access-time, and set-file-times!

* edwin/notify.scm[1.10]:
Fix broken conditional in notifier.
The notify string was not being updated at all if the mail
notification hook was not installed.

1992-09-15 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dosxcutl.asm[1.5]:
Get rid of IntEnb and IntCode as independent variables. They are now
part of the register block.

* microcode/Attic/dosfs.c[1.3], microcode/Attic/dosint10.c[1.2],
microcode/Attic/dossys.c[1.2], microcode/Attic/dostop.c[1.5],
microcode/Attic/prdosfs.c[1.2]:
Make FILE-EQ? work correctly under DOS.

1992-09-14 Chris Hanson <[email protected]>

* runtime/rep.scm[14.28]:
Add HOOK/REPL-PROMPT.

* 6001/make.scm[15.19]:
Define NIL and USER-INITIAL-ENVIRONMENT.

* 6001/make.scm[15.18]:
Disable EXIT and QUIT so that students aren't logged out by accident.

* edwin/editor.scm[1.224]:
Use new %QUIT.

* runtime/global.scm[14.42]:
Add %QUIT to guarantee access to basic QUIT mechanism.

* runtime/global.scm[14.41]:
Add HOOK/EXIT and HOOK/QUIT to allow EXIT and QUIT to be overridden.

* 6001/edextra.scm[1.12]:
Change mail to insert both "From:" and "Reply-to:" addresses.

* 6001/floppy.scm[1.6]:
Install new login window text from LAS.

* 6001/floppy.scm[1.5]:
Use home directory if "work/" doesn't exist.

* 6001/floppy.scm[1.4]:
Add code to support a "motd" file.

* microcode/unxutl/Attic/ymkfile[1.58]:
Add dependencies for "lookprm".

* microcode/interp.c[9.68]:
Fix occurrences of `set_IntEnb'.

* microcode/intrpt.h[1.10]:
In definitions of interrupt registers, use `Registers' instead of
`Regs', because the latter breaks in "interp.c" where references occur
outside of `Interpret'.

* edwin/xterm.scm[1.35]:
For FOCUS-IN events, don't generate a SELECT-SCREEN operation if the
screen is already selected. This should prevent spurious failures of
PROMPT-FOR-CHAR.

1992-09-12 Chris Hanson <[email protected]>

* compiler/machines/spectrum/rules3.scm[4.33],
microcode/cmpauxmd/hppa.m4[1.21], microcode/version.h[11.120]:
Add new hook for close-coded stack/interrupt check.

1992-09-11 Chris Hanson <[email protected]>

* compiler/machines/spectrum/lapgen.scm[4.40]:
Add new hook for close-coded stack/interrupt check.

* microcode/Attic/dosconio.c[1.6], microcode/const.h[9.41],
microcode/extern.h[9.47], microcode/interp.c[9.67],
microcode/intrpt.h[1.9], microcode/storage.c[9.51]:
Move IntCode and IntEnb to the register block so that compiled code
can access them.

* 6001/6001.cbf[1.4]:
Disable generation of stack checks until implementation bugs are
fixed.

* microcode/cmpint.c[1.49]:
Handle stack checks correctly. Previous code was jumping to interrupt
code even when stack-overflow interrupt was disabled.

1992-09-10 Chris Hanson <[email protected]>

* 6001/floppy.scm[1.3]:
Don't do compensation kludge for 60-second granularity, it causes all
files to be written back to floppy every time.

* 6001/floppy.scm[1.2]:
Tweak some of the presentations.

* 6001/6001.sf[1.7]:
Add "floppy" to the list of files that need compilation.

* 6001/edextra.scm[1.11], 6001/make.scm[15.17]:
Move editor customizations from "make.scm" to "edextra.scm". Extend
filename customizations so that they do the usual thing when the files
being operated on are not part of the student environment. Add
remaining backup and auto-save filename customizations. Add
Scheme's file types to list of ignored types. Disable key bindings
that exit the editor.

* 6001/edextra.scm[1.10], 6001/make.scm[15.16], 6001/make.scm[15.15]:
Add first version of floppy code.

* edwin/buffrm.scm[1.46], edwin/bufmnu.scm[1.120],
edwin/curren.scm[1.104], edwin/edwin.pkg[1.99],
edwin/rename.scm[1.5], edwin/wincom.scm[1.112],
edwin/winren.scm[1.4]:
Extend the definition of SELECT-BUFFER-IN-WINDOW so that it has the
functionality of SET-WINDOW-BUFFER!. Eliminate the latter, then
export the procedure of the same name from the window package.

1992-09-08 Chris Hanson <[email protected]>

* edwin/buffrm.scm[1.45]:
Fix think-o in window-configuration stuff.

* 6001/edextra.scm[1.9]:
Eliminate losing and unnecessary definitions of string->number and
number->string.

* edwin/buffrm.scm[1.44]:
Fix typo in previous change.

* edwin/buffrm.scm[1.43], edwin/edwin.pkg[1.98],
edwin/screen.scm[1.101]:
Install mechanism for saving and restoring window configurations.

1992-09-07 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dosconio.c[1.5]:
Fix off-by-one error.

1992-09-06 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dosconio.c[1.4], microcode/Attic/doskbd.c[1.9],
microcode/Attic/doskbutl.asm[1.5], microcode/Attic/dosscan.h[1.4],
microcode/Attic/dosxcutl.asm[1.4]:
Make caps-lock work correctly by adding a third translation table.

1992-09-05 Chris Hanson <[email protected]>

* runtime/unxprm.scm[1.20]:
Add new procedures to read file access time and to set file times.

* microcode/pruxfs.c[9.50]:
Add primitives to read file access time.

1992-09-05 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dosscan.h[1.3]:
Move attn key to F10. Some computers don't generate anything for F12.

1992-09-04 Nick Papadakis <[email protected]>

* 6001/edextra.scm[1.8], 6001/edextra.scm[1.7]:
bugfixes to load-problem-set

* 6001/edextra.scm[1.6]:
Added support for load-problem-set

1992-09-03 Chris Hanson <[email protected]>

* 6001/make.scm[15.14]:
Disable handling of compressed and encrypted files.

1992-09-03 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dosconio.c[1.3]:
Flush obsolete primitive.

* microcode/Attic/dosconio.c[1.2], microcode/Attic/doskbd.c[1.8],
microcode/Attic/doskbutl.asm[1.4], microcode/Attic/dosscan.h[1.2],
microcode/Attic/dossig.c[1.5], microcode/Attic/dosx32.c[1.2],
microcode/Attic/dosxcutl.asm[1.3]:
Change DOS timer interrupt behavior:

- Low level timer interrupt sets the "Global GC" interrupt but.

- The Global GC interrupt handler (a primitive) tracks user timer
requests and sets the timer interrupt bit when appropriate. It also
invokes consume_typeahead to look for keyboard interrupt characters.

Keyboard interrupt behavior changes:

- The interactive handler is invoked from the consume_typeahead
routine, not when Scheme is trying to map the interrupt character.
In this way, its range of actions is greater.

- Add reset option and hard attention keys.

Keyboard interrupt handler:

- Implement X32 version (does not work under DPMI).

- Rewrite DPMI handler to use masm-assembled code instead of
hand-assembled code. This makes it considerably easier to modify.

1992-09-02 Chris Hanson <[email protected]>

* 6001/edextra.scm[1.5], 6001/picture.scm[1.17]:
Add procedure to restore focus to the editor's screen.

* 6001/edextra.scm[1.4]:
Load PRINT library using new procedure LOAD-EDWIN-LIBRARY.

* edwin/autold.scm[1.53]:
Create new procedure LOAD-EDWIN-LIBRARY that can be used to load a
library when Edwin is not running.

* edwin/edwin.pkg[1.97], edwin/xterm.scm[1.34]:
Export procedures to force focus to a particular Edwin screen.

* 6001/edextra.scm[1.3]:
Make sure printing library is loaded for this code.

* 6001/edextra.scm[1.2]:
Fix some bugs.

* edwin/print.scm[1.11]:
Change switch-generation procedure to return a string instead of a
list of strings. This is a little more useful since no further
processing will be performed on the switches after that point.

1992-09-02 Guillermo J. Rozas <[email protected]>

* runtime/site.scm.dos[1.10]:
Remove timer interrupt hack. This stuff is done directly by the
microcode now.

* runtime/thread.scm[1.5], runtime/version.scm[14.156]:
Timer interrupts are now only requested when there are other runnable
threads or pending timer events, rather than at all tmes.

* runtime/intrpt.scm[14.12]:
Copy the global GC handler from the old interrupt vector to the new
one. The new DOS keyboard interrupt code requires this because it
pre-initializes and uses the global GC interrupt.

* microcode/boot.c[9.73]:
Add hook for DOS to initialize part of the fixed objects vector.

1992-09-01 Chris Hanson <[email protected]>

* 6001/picture.scm[1.16]:
Fix think-o in last change.

* 6001/6001.pkg[1.7], 6001/6001.pkg[1.6], 6001/make.scm[15.13]:
Try different magic for edwin extensions package.

* 6001/picture.scm[1.15], 6001/picture.scm[1.14]:
In picture->pgm-file, always scale.

* 6001/6001.pkg[1.5], 6001/6001.sf[1.6], 6001/6001.sf[1.5],
6001/picture.scm[1.13], edwin/print.scm[1.10]:
Add support for M-x print-graphics.

1992-08-30 Guillermo J. Rozas <[email protected]>

* microcode/bchdmp.c[9.67]:
Fix truncate and ftruncate prototypes and flush FTRUNCATE_DECLARED
nonsense.

* microcode/cmpgc.h[1.22]:
Remove extraneous back-slash.

* microcode/version.h[11.119]:
"Final" alpha merge.

1992-08-29 Guillermo J. Rozas <[email protected]>

* compiler/machines/alpha/assmd.scm[1.1],
compiler/machines/alpha/coerce.scm[1.1],
compiler/machines/alpha/compiler.cbf[1.1],
compiler/machines/alpha/compiler.pkg[1.1],
compiler/machines/alpha/dassm1.scm[1.1],
compiler/machines/alpha/dassm2.scm[1.1],
compiler/machines/alpha/dassm3.scm[1.1],
compiler/machines/alpha/decls.scm[1.1],
compiler/machines/alpha/inerly.scm[1.1],
compiler/machines/alpha/insmac.scm[1.1],
compiler/machines/alpha/instr1.scm[1.1],
compiler/machines/alpha/instr2.scm[1.1],
compiler/machines/alpha/instr3.scm[1.1],
compiler/machines/alpha/lapgen.scm[1.1],
compiler/machines/alpha/lapopt.scm[1.1],
compiler/machines/alpha/machin.scm[1.1],
compiler/machines/alpha/make.scm[1.1],
compiler/machines/alpha/rgspcm.scm[1.1],
compiler/machines/alpha/rules1.scm[1.1],
compiler/machines/alpha/rules2.scm[1.1],
compiler/machines/alpha/rules3.scm[1.1],
compiler/machines/alpha/rules4.scm[1.1],
compiler/machines/alpha/rulfix.scm[1.1],
compiler/machines/alpha/rulflo.scm[1.1],
compiler/machines/alpha/rulrew.scm[1.1]:
Initial revision.

* microcode/bchdmp.c[9.66], microcode/ux.h[1.38]:
Move HAVE_FTRUNCATE from bchdmp.c to ux.h.

* microcode/ux.h[1.37]:
Fix bug in last edit: I interpreted the diff incorrectly.

* microcode/ux.h[1.36]:
OSF does not have truncate, apparently.

* microcode/bignum.c[9.37]:
Fix many instances of 1 (replaced by 1L).

* microcode/bitstr.c[9.50]:
Fix many instances of 1 (replaced by 1L).
Remove internal static declarations for functions. They are not legal
to some compilers.

* microcode/cmpintmd/mips.h[1.15]:
Add call to prevent Ultrix from "fixing" unaligned accesses.

* microcode/error.c[1.3]:
Internal static is not legal, according to some compilers.

* microcode/intprm.c[1.4]:
Fix word-size bug. The code implicitly assumed that longs were always
large enough to fit a full fixnum.

* microcode/pruxenv.c[1.11]:
Add real-uid and real-gid primitives.

* microcode/uxtrap.c[1.20]:
Fix word size problem.

* microcode/ux.h[1.35]:
Remove spurious CONST in return type of getenv.
Add a couple of syscalls.

* microcode/extern.h[9.46], microcode/osscheme.h[1.7]:
Fix inconsistent prototype between definition and export.

* microcode/bitstr.h[1.8]:
Fix word size problem manifested on Alpha:
1 -> 1L

* microcode/cmpintmd/alpha.h[1.2]:
Add page_size for autoclobber code.

* microcode/s/Attic/decosf.h[1.2]:
Define AUTOCLOBBER_BUG.

* microcode/cmpgc.h[1.21], microcode/cmpint.c[1.48],
microcode/fasload.c[9.66], microcode/hard-par.c[1.2],
microcode/unxutl/Attic/ymkfile[1.57], microcode/uxtrap.h[1.16]:
Alpha mods.

1992-08-28 Chris Hanson <[email protected]>

* edwin/print.scm[1.9]:
Repaginate.

* edwin/print.scm[1.8]:
Abstract the code to generate the list of lpr switches.

1992-08-28 Guillermo J. Rozas <[email protected]>

* edwin/macros.scm[1.55]:
Add command-defined? so various files can test for features being
present or not.

* edwin/notify.scm[1.9]:
Change date format to match Emacs.
Conditionalize mail notification on presence of rmail.

* runtime/dosdir.scm[1.5]:
Teach pattern matcher to handle multiple asterisks.

* runtime/string.scm[14.5]:
Add substring?

1992-08-27 Guillermo J. Rozas <[email protected]>

* microcode/m/Attic/i386.h[1.3]:
Conditionalize M4_SWITCH_MACHINE on _SYSV.

* microcode/s/Attic/sysv3.h[1.2]:
Define _SYSV so m.h can tell it is running under SYSV.

* edwin/make.scm[3.73]:
Add BIOS driver for DOS version of Scheme.

* edwin/editor.scm[1.223]:
Change top level to not know how many display types there are in the
system.

* edwin/edwin.pkg[1.96.1.1]:
Version that uses the old debugger.

* edwin/artdebug.scm[1.19]:
Rename continuation-browser to continuation-browser-buffer so that it
can replace the new debugger.

* edwin/edwin.pkg[1.96]:
Add direct BIOS driver for DOS version of Scheme.

Remove exports of console-display-type and x-display-type.

* edwin/edwin.ldr[1.33]:
Add direct BIOS driver for DOS version of Scheme.

* edwin/termcap.scm[1.4]:
Make sure that termcap primitives are implemented before invoking
them.

* edwin/decls.scm[1.39]:
Add direct bios driver for DOS version of CScheme.

* edwin/tterm.scm[1.18]:
Make SF not complain.

* edwin/print.scm[1.7]:
Add missing #\? from string-prefix? call.

1992-08-25 Chris Hanson <[email protected]>

* edwin/manual.scm[1.10]:
HP-UX 8.07 uses "Reformatting entry" message instead of "Reformatting
page".

1992-08-24 Chris Hanson <[email protected]>

* sf/butils.scm[4.7]:
CREF doesn't like ACCESS to non-global environment. Work around by
using ENVIRONMENT-LOOKUP.

1992-08-24 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/i386.m4[1.26]:
Fix a few comments.

* microcode/s/Attic/dos.m4[1.4]:
Add a few blank lines.

* microcode/s/Attic/dos.m4[1.3]:
Make dos.m4 preserve comments.

* microcode/unxutl/Attic/makefile[1.18]:
Add unconfig option.

* microcode/cmpauxmd/mips.m4[1.8]:
$30 is also a callee-saves register. It was not being preserved.

1992-08-22 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dostop.c[1.4]:
Fix typo (ENONENT instead of ENOENT).

* compiler/etc/xcbfdir.scm[1.8], sf/butils.scm[4.6]:
Observe compiler:cross-compiling?

1992-08-21 Chris Hanson <[email protected]>

* 6001/make.scm[15.12]:
In MAIL-DEFAULT-REPLY-TO, must use 'INSERTED-DEFAULT because
otherwise it is impossible to return null string.

* edwin/loadef.scm[1.16], edwin/print.scm[1.6]:
Add option switches for 6.001 support. Change print commands to
insert -J and -T switches when possible to make the output easier to
identify.

* edwin/intmod.scm[1.50]:
Don't permit inferior REPL evaluation unless the buffer is in
inferior-repl mode.

1992-08-21 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dostop.c[1.3]:
Add more known error names.

* microcode/Attic/dostop.c[1.2]:
Change the copyright notice to be accurate.

1992-08-20 Chris Hanson <[email protected]>

* edwin/debug.scm[1.3]:
Link where and eval buffers to debugger browser so that they are
killed along with the debugger. Change M-x browser-quit so that if
the browser is associated with another browser or will be selecting
another browser then that browser is selected and its associated
information buffer is also shown.

1992-08-20 Guillermo J. Rozas <[email protected]>

* microcode/regex.c[1.12]:
Fix potential OOE bug, and fix sign-extension (or unsigned char) bug
on SGIs.

* compiler/base/toplev.scm[4.45]:
Fix bug by which temporary files were being mapped and therefore
shared and not deleted.

* microcode/unxutl/Attic/ymkfile[1.56]:
Add alpha conditionalization.

* compiler/machines/i386/rulflo.scm[1.16.1.4]:
Merge in floating-point bug fixes from main branch.

* microcode/cmpintmd/mips.h[1.14]:
Fix typo from previous edit.

* microcode/cmpintmd/mips.h[1.13]:
Fix an allocation bug.

* microcode/cmpauxmd/mips.m4[1.7]:
Change comment-syntax for Emacs mode declaration.

* compiler/machines/mips/instr1.scm[1.6],
compiler/machines/mips/lapgen.scm[1.11],
compiler/machines/mips/machin.scm[1.7],
compiler/machines/mips/rules3.scm[1.12],
compiler/machines/mips/rulfix.scm[1.6],
microcode/cmpauxmd/mips.m4[1.6], microcode/cmpintmd/mips.h[1.12]:
New MIPS closure code. Works on newer R3000 systems (with larger
cache-line sizes) and on R4000 systems in 32-bit mode.

1992-08-19 Chris Hanson <[email protected]>

* 6001/make.scm[15.11]:
Allow students to specify a null "reply-to:" address. Always ask for
this, but keep the last non-null address around and supply it as a
default.

1992-08-19 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/rulfix.scm[4.42]:
Fix bug in fixnum-remainder.

* compiler/machines/spectrum/rulfix.scm[4.43],
compiler/machines/spectrum/rulfix.scm[4.41]:
Fix bugs in fixnum-quotient.

* compiler/machines/i386/dassm2.scm[1.7]:
Fix edit bug.

1992-08-18 Chris Hanson <[email protected]>

* edwin/evlcom.scm[1.38], edwin/intmod.scm[1.49]:
Fix implementation of transcript-disable-evaluation variable so that
it now works. Implement new option variable
transcript-buffer-read-only, which defaults to true.

* 6001/make.scm[15.10]:
Fix missing argument in call to prompt-for-string.

* 6001/make.scm[15.9]:
Fix think-o in previous change.

* edwin/edwin.pkg[1.95]:
Export some variables from the operating-system specifics directory.

* 6001/make.scm[15.8]:
Set mail-default-reply-to so that it prompts for a reply address the
first time mail is sent.

* edwin/sendmail.scm[1.14]:
Extend definition of mail-default-reply-to so that it can be a thunk
that returns a string.

* 6001/make.scm[15.7]:
Enable version-control for 6.001 band, and
trim-versions-without-asking.

* microcode/x11graph.c[1.29]:
Fix y-offset bug in X-GRAPHICS-FILL-POLYGON.

* edwin/editor.scm[1.222]:
Detect errors that are generated by the X primitives when the
connection to the X server is broken, and kill the editor when that
occurs.

* microcode/x11.h[1.14], microcode/x11base.c[1.41]:
Add code to periodically transmit something to the X server, so that
if the connection dies an error will be signalled to Scheme.

* runtime/intrpt.scm[14.11], runtime/load.scm[14.40],
runtime/runtime.pkg[14.159]:
Add command-line switch "-no-suspend-file" to disable the generation
of "~/scheme_suspend" files.

1992-08-18 Jason Wilson <[email protected]>

* edwin/dired.scm[1.126]:
Changed Dired so that the copy flag char and the delete flag char are
Scheme variables instead of hard-wired constants.

1992-08-18 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/dassm2.scm[1.6]:
Fix OOE bug in disassemble-one-instruction.

* compiler/machines/i386/dassm3.scm[1.4]:
offset -> (next-offset)

* compiler/machines/i386/instr2.scm[1.5]:
Bind correct variable in a MOV rule.

1992-08-17 Chris Hanson <[email protected]>

* microcode/s/Attic/newsos5.h[1.2]:
Don't use -non_shared for GCC.

1992-08-17 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/machin.scm[1.13],
compiler/machines/vax/lapgen.scm[4.14]:
Update stack-guard offset to new value.

1992-08-16 Guillermo J. Rozas <[email protected]>

* microcode/bintopsb.c[9.54], microcode/ppband.c[9.44]:
Explicitly set HEAP_MALLOC to malloc in case it has been defined to be
another procedure that is not linked in.

* microcode/psbtobin.c[9.48]:
Fix bug going to compilers where int != long.
Handle - (1 << FIXNUM_DATUM_LENGTH) correctly.

1992-08-14 Guillermo J. Rozas <[email protected]>

* runtime/dospth.scm[1.14]:
Simplify parse-directory-component.

* runtime/dospth.scm[1.13]:
Fix yet another directory parser bug.

1992-08-13 Guillermo J. Rozas <[email protected]>

* runtime/dospth.scm[1.12]:
Fix bug in parse-directory-component.

* runtime/load.scm[14.39]:
Add delayed-action capability to command line processing.
This allows -eval and -load to delay their action until after the init
file is loaded.

1992-08-12 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/dassm2.scm[1.5]:
Fix signedness of offset field in read-procedure.

* runtime/pathnm.scm[14.22]:
Add missing field to the unimplemented host type.

* runtime/dospth.scm[1.11]:
Fix typo in last edit!

* runtime/dospth.scm[1.10]:
Fix dos/canonicalize to not extract substrings when the string has the
proper length.

* runtime/dospth.scm[1.9]:
Fix parenthesis bug from last edit.

* runtime/dospth.scm[1.8], runtime/pathnm.scm[14.21],
runtime/unxpth.scm[14.12]:
Add system-dependent pathname canonicalization.

* compiler/machines/i386/rulflo.scm[1.19]:
Fix bug in flonum-negative?, flonum-zero?, flonum-less?, and
flonum-equal? by which unordered comparisons always compared true,
breaking code in runtime/dragon4.scm, for example.

* compiler/machines/i386/instrf.scm[1.13]:
Add F%SUB and friends to accomodate Intel book bugs.

* compiler/machines/i386/rulflo.scm[1.18]:
Change uses of fsub into f%sub, and fdiv into f%div, etc.

* microcode/cmpauxmd/i386.m4[1.25]:
Change FP initialization for DOS until we get FP trap handling.

* runtime/load.scm[14.38], runtime/runtime.pkg[14.158],
runtime/version.scm[14.155]:
Make command-line parser extensible.

1992-08-11 Guillermo J. Rozas <[email protected]>

* runtime/list.scm[14.14]:
Replace recursive append with iterative append.

* compiler/machines/mips/dassm2.scm[1.4]:
Remove spurious variable assignments.
Teach it how to destructure execute caches.

* compiler/machines/mips/dassm1.scm[1.2]:
Remove spurious variable assignments.
Fix problem with compiler:write-lap-file, remove spurious assigned
variables, and update write-caches to use
compiled-code-block/procedure-cache-offset.

* compiler/machines/vax/dassm2.scm[4.11]:
Remove spurious variable assignments.

* compiler/machines/vax/dassm1.scm[4.6]:
Fix problem with compiler:write-lap-file, remove spurious assigned
variables, and update write-caches to use
compiled-code-block/procedure-cache-offset.

* compiler/machines/spectrum/dassm2.scm[4.19]:
Teach the disassemble how to read execute caches.

* compiler/machines/bobcat/dassm1.scm[4.17],
compiler/machines/i386/dassm1.scm[1.5]:
Fix compiler:write-lap-file.

* compiler/machines/bobcat/dassm1.scm[4.16],
compiler/machines/spectrum/dassm1.scm[4.17]:
Flush spurious variables assigned by dassm2.scm .

Update disassembler/write-linkage-section to use
compiled-code-block/procedure-cache-offset.

* compiler/machines/bobcat/dassm2.scm[4.19],
compiler/machines/spectrum/dassm2.scm[4.18]:
Flush spurious assignments.

* compiler/machines/i386/dassm3.scm[1.3]:
Replace by the real thing.

* compiler/machines/i386/dassm2.scm[1.4]:
Replace stubs by the real thing.

1992-08-10 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/instr2.scm[1.4]:
Change syntax of segment register ops.

1992-08-08 Guillermo J. Rozas <[email protected]>

* runtime/dosdir.scm[1.4]:
Improve the pattern matcher to allow a trailing #\* to mean .* as
well.

1992-08-07 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/compiler.pkg[1.11]:
Export compiler:open-code-floating-point-arithmetic? and lap->code .

1992-08-06 Guillermo J. Rozas <[email protected]>

* runtime/dosdir.scm[1.3]:
Eliminate some spurious consing.

* runtime/dosdir.scm[1.2]:
Add somewhat improved wildcard matching (in the middle of components).

1992-08-05 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/compiler.pkg[1.10],
compiler/machines/vax/compiler.pkg[1.12]:
Export compiler:generate-stack-checks?

* compiler/machines/i386/instrf.scm[1.12]:
Fix more floating-point documentation bugs.

* compiler/machines/i386/instrf.scm[1.11]:
Fix swapped opcodes bug in i486 manual (FDIV <-> FDIVR, FSUB <->
FSUBR).

* compiler/machines/i386/lapgen.scm[1.21],
compiler/machines/i386/rules3.scm[1.23],
compiler/machines/vax/lapgen.scm[4.13],
compiler/machines/vax/rules3.scm[4.10]:
Add stack checks under control of compiler:generate-stack-checks?

* compiler/machines/spectrum/rulfix.scm[4.40]:
Improve quotient and remainder code.

* microcode/Attic/config.h[9.74]:
The alpha uses alpha_heap_malloc to allocate the heap in order to
change its protection to make it R+W+X, instead of just R+W.

* microcode/object.h[9.39]:
Use HEAP_MALLOC macro instead of using malloc directly.

1992-08-04 Chris Hanson <[email protected]>

* runtime/uenvir.scm[14.28]:
Fix bug in ENVIRONMENT-BOUND-NAMES -- it was not showing variables
bound in the environment extension of an IC environment when there was
an internal lambda being used.

1992-08-03 Chris Hanson <[email protected]>

* edwin/rmailsum.scm[1.23]:
Change message-selection code to use SHOW-MESSAGE instead of
indirecting through the #\j binding of the RMAIL buffer's comtab. The
old method failed when the RMAIL buffer was in rmail-edit mode.

* edwin/rmail.scm[1.19]:
Reimplement M-x rmail-edit-current-message to make it more like that
of Emacs. Signal an error if user attempts to select a message when
the buffer is not in rmail mode.

1992-07-31 Guillermo J. Rozas <[email protected]>

* runtime/infutl.scm[1.43]:
Add code to preserve uncompressed .bif files.
In this way, when debugging a file, the cost is paid only once.

The most recent of the .inf, .bif, and .bci files is used.

1992-07-30 Chris Hanson <[email protected]>

* microcode/option.c[1.28]:
Increase size of HP-PA large constant space.

1992-07-30 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/mips.m4[1.5]:
Add missing NOPs in branch-delay slots.

* microcode/Attic/config.h[9.73], microcode/Attic/oscond.h[1.11],
microcode/ux.h[1.34], microcode/uxtrap.h[1.15]:
Add SGI Iris mods.

* microcode/unxutl/Attic/config[1.17]:
Add SGI entry.

1992-07-29 Chris Hanson <[email protected]>

* compiler/machines/bobcat/compiler.pkg[1.38],
compiler/machines/i386/compiler.pkg[1.9],
compiler/machines/mips/compiler.pkg[1.8],
compiler/machines/vax/compiler.pkg[1.11]:
Fix support for assembly-labels files so that compiler can properly
generate disassemblies.

* 6001/6001.cbf[1.3]:
Compile with stack-overflow checks.

* compiler/base/make.scm[4.92], compiler/base/switch.scm[4.19],
compiler/machines/bobcat/compiler.pkg[1.37],
compiler/machines/bobcat/lapgen.scm[4.45],
compiler/machines/bobcat/rules3.scm[4.33],
compiler/machines/mips/compiler.pkg[1.7],
compiler/machines/mips/lapgen.scm[1.10],
compiler/machines/mips/rules3.scm[1.11],
compiler/machines/spectrum/compiler.pkg[1.37],
compiler/machines/spectrum/lapgen.scm[4.39],
compiler/machines/spectrum/rules3.scm[4.32]:
Add optional stack-overflow checks. By default this is disabled.

* microcode/cmpint.c[1.47], microcode/const.h[9.40],
microcode/extern.h[9.45], microcode/gc.h[9.31],
microcode/interp.h[9.35], microcode/stack.h[9.31],
microcode/storage.c[9.50], microcode/utils.c[9.53],
microcode/version.h[11.118]:
Move Stack_Guard into the register block so that compiler can
reference it for stack-overflow checks.

1992-07-28 Guillermo J. Rozas <[email protected]>

* runtime/dospth.scm[1.7]:
Handle screwy directories with dots in their names.

* microcode/dosutl/Attic/makefile[1.3]:
Add copyright.

* microcode/dosutl/Attic/bch-prm.lst[1.4],
microcode/dosutl/Attic/bch-ztc.lst[1.5],
microcode/dosutl/Attic/scm-prm.lst[1.4],
microcode/dosutl/Attic/scm-ztc.lst[1.5]:
Sort files according to groups, and alphabetically within.

* microcode/dosutl/Attic/scm-prm.lst[1.3]:
Sort file names
Changes for exception handling under X32 and direct calls to BIOS for
faster screen update.

* microcode/dosutl/Attic/bch-ztc.lst[1.4],
microcode/dosutl/Attic/scm-ztc.lst[1.4]:
Sort file names

* microcode/dosutl/Attic/bch-prm.lst[1.3],
microcode/dosutl/Attic/bch-ztc.lst[1.3],
microcode/dosutl/Attic/makefile[1.2],
microcode/dosutl/Attic/scm-ztc.lst[1.3]:
Changes for exception handling under X32 and direct calls to BIOS for
faster screen update.

* microcode/Attic/dostty.c[1.2]:
DOS_initialize_tty now finds out the lines and columns directly from
the BIOS.

* microcode/Attic/dosasutl.asm[1.2]:
model small -> model tiny.

* runtime/dospth.scm[1.6]:
Make the DOS pathname code canonicalize pathnames to their maximum
length to prevent duplicates.

* microcode/storage.c[9.49]:
MemTop, IntCode, and IntEnb are allocated elsewhere on DOS.

* microcode/Attic/dossig.c[1.4]:
Merge in latest changes: timer interrupts and exceptions when using X32.

* microcode/Attic/dosexcp.c[1.2], microcode/Attic/dosexcp.h[1.2]:
Merge in latest changes: timer interrupts and exceptions when using
X32.

* microcode/Attic/doskbutl.asm[1.3]:
Merge in latest changes (tiny model instead of small).

* microcode/Attic/dosxcutl.asm[1.1.1.1]:
Alternate trap handler for X32.

* microcode/Attic/dosxcutl.asm[1.2]:
Add support for exception handling under X32.

* microcode/cmpauxmd/i386.m4[1.24]:
Merge in latest changes (tiny model, Registers allocated elsewhere
under DOS).

1992-07-25 Guillermo J. Rozas <[email protected]>

* compiler/documentation/porting.guide[1.24]:
Update after 386 and Alpha ports.

1992-07-24 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.157], runtime/stream.scm[14.7]:
Implement STREAM-FIRST and STREAM-REST as aliases for STREAM-CAR and
STREAM-CDR, respectively.

1992-07-23 Guillermo J. Rozas <[email protected]>

* microcode/primutl.c[9.57]:
Declare some strings correctly and cast where appropriate.

* microcode/ospty.h[1.2]:
Fix incorrect presence macro.

* microcode/unxutl/Attic/config[1.16]:
Add Alpha entries.

* microcode/bchgcc.h[9.51]:
read and write return ssize_t.

* microcode/Attic/config.h[9.72]:
Rename alpha preprocessor macro.

* microcode/obstack.c[1.5], microcode/obstack.h[1.8]:
int->long for 64-bit systems.

* microcode/Attic/oscond.h[1.10]:
Make OS conditionalziation consistent.

* microcode/tparam.c[1.4]:
Remove unneeded alpha conditionalization.

1992-07-21 Brian K. Zuzga <[email protected]>

* runtime/global.scm[14.39]:
Add dump-option option to fasdump.

1992-07-21 Chris Hanson <[email protected]>

* runtime/global.scm[14.40], runtime/scomb.scm[14.12],
runtime/uenvir.scm[14.27]:
Eliminate bad cold-load dependency.

* microcode/fixnum.c[9.36]:
Implement FIXNUM? primitive.

* microcode/prim.c[9.35]:
Implement NULL? primitive, different from NOT.

* microcode/utabmd.scm[9.63]:
Add new type code names.

* runtime/global.scm[14.38], runtime/parse.scm[14.18],
runtime/scomb.scm[14.11], runtime/uenvir.scm[14.26],
runtime/unpars.scm[14.27]:
Change type code names.

* runtime/scode.scm[14.13]:
Eliminate explicit reference to fixnum type code.

1992-07-20 Arthur Gleckler <[email protected]>

* microcode/version.h[11.117], microcode/x11graph.c[1.28],
runtime/version.scm[14.154], runtime/x11graph.scm[1.23]:
Change primitive X-GRAPHICS-COPY-AREA to accept both source and
destination windows. Change X graphics operation COPY-AREA to pass
the same window for both parameters.

1992-07-20 Chris Hanson <[email protected]>

* compiler/base/toplev.scm[4.44],
compiler/machines/spectrum/compiler.pkg[1.36],
compiler/machines/spectrum/dassm1.scm[4.16],
runtime/infutl.scm[1.42]:
Fix support for assembly-labels files so that compiler can properly
generate disassemblies.

1992-07-18 Hal Abelson <[email protected]>

* 6001/6001.pkg[1.4]:
Changed export list comment out the picture ops we aren't using, and
to add picture->pgm-file.

1992-07-18 Guillermo J. Rozas <[email protected]>

* microcode/bintopsb.c[9.53]:
Fix naming conflict.

1992-07-16 Chris Hanson <[email protected]>

* microcode/option.c[1.27]:
Increase default constant space to 450 -- old value of 400 is now too
small.

1992-07-13 aragorn <[email protected]>

* 6001/pic-read.scm[1.4]:
Discard delimiter character after reading each line.

1992-07-10 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.156]:
Restore export of *PP-DEFAULT-AS-CODE?*. Problem was that source for
"pp.scm" was several versions old and did not match rest of runtime
system.

* 6001/pic-read.scm[1.3]:
Eliminate unused variable. Reorganize somewhat.

1992-07-09 Arthur Gleckler <[email protected]>

* edwin/syntax.scm[1.75]:
Fix bug in END-OF-DEFUN command when point is before a word but not
followed by any definition.

1992-07-08 Chris Hanson <[email protected]>

* microcode/pruxenv.c[1.10]:
Return #F when name server fails.

1992-07-08 Michael R. Blair <[email protected]>

* microcode/pruxenv.c[1.9]:
Detect errors returned by `gethostbyname', and return the hostname in
that case.

1992-07-07 Guillermo J. Rozas <[email protected]>

* runtime/unxprm.scm[1.19]:
Add delete-directory primitive.

Merge in DOS get-environment-variable/set-environment-variable!
changes.

* runtime/dosprm.scm[1.9]:
Add delete-directory primitive.

Change make-directory to avoid putting the back-slash at the end of
the name given to the primitive.

* microcode/prosfs.c[1.10]:
Rename C name of primitive.

1992-07-06 Guillermo J. Rozas <[email protected]>

* microcode/Attic/dosfs.c[1.2], microcode/Attic/msdos.h[1.2],
microcode/osfs.h[1.5], microcode/prosfs.c[1.9],
microcode/utabmd.scm[9.62], microcode/ux.h[1.33],
microcode/uxfs.c[1.8], microcode/version.h[11.116]:
Add directory-delete primitive.

* microcode/cmpgc.h[1.20]:
Flush MULTI_CLOSURE_PADDING (added for the Alpha, that no longer needs
it because of a representation change), and conditionalize the
definition of externally-visible closure macros so that they can be
overridden from the cmpint-machine.h files.

1992-07-05 Guillermo J. Rozas <[email protected]>

* runtime/runtime.pkg[14.155]:
Remove bogus export of *pp-default-as-code?*

* compiler/back/regmap.scm[4.12]:
When a pseudo register that has a label is deleted, the association
with the pseudo register is removed from the map, but the label is not
forgotten, and the register becomes a temporary.

* compiler/machines/bobcat/lapgen.scm[4.44],
compiler/machines/bobcat/rules1.scm[4.37],
compiler/machines/bobcat/rules2.scm[4.13],
compiler/machines/bobcat/rules3.scm[4.32]:
Flush uses of INST.

* compiler/back/bitutl.scm[1.6]:
Add package: comment.

* compiler/base/macros.scm[4.11]:
Flush INST.

* compiler/back/bitutl.scm[1.5]:
Add remainder as an assembly-time operator.

1992-07-01 Arthur Gleckler <[email protected]>

* microcode/x11graph.c[1.27]:
Fix bug in clipping caused by incorrect cast of signed coordinates to
unsigned coordinates: clipping was done incorrectly when clipping
rectangle extended above the window.

1992-06-15 Chris Hanson <[email protected]>

* runtime/socket.scm[1.5]:
Don't let TCP-SERVER-CONNECTION-ACCEPT block with interrupts disabled;
this prevents other threads from running. Instead, run in loop and
explicitly check for other threads that want time.

1992-06-12 Guillermo J. Rozas <[email protected]>

* compiler/back/bittop.scm[1.15], compiler/base/crsend.scm[1.8],
compiler/base/crstop.scm[1.10], compiler/base/make.scm[4.91],
compiler/base/switch.scm[4.18], compiler/base/toplev.scm[4.43]:
Change cross-compiler to dump a bit-string and a bunch of objects
instead of a compiled code block. This allows cross-compilation to
machines with a different word size.

1992-06-11 Guillermo J. Rozas <[email protected]>

* runtime/arith.scm[1.24]:
Fix bug in atan2 (atan 0 -2) used to give 0 instead of pi.

* microcode/unexec.c[9.24]:
Update to new version from GNU Emacs. Needed for MIPS/Ultrix.

* microcode/version.h[11.115]:
Changes for Alpha/OSF.

* microcode/cmpint.c[1.46]:
Reorder and cast the entries in the utility table so that prototypes
can be used.

* microcode/cmpint.c[1.45]:
Add some missing prototypes.

* microcode/uxio.c[1.22]:
Add Ultrix conditionalization.

* microcode/Attic/oscond.h[1.9], microcode/ux.h[1.32]:
Add OSF conditionalization.

* microcode/obstack.h[1.7]:
alignment_mask -> long.

* microcode/fasload.c[9.65]:
MAX_CHAR -> UCHAR_MAX

1992-06-11 u6001 <[email protected]>

* 6001/picture.scm[1.12]:
still changing to deal with new representation of pictures

1992-06-10 Chris Hanson <[email protected]>

* runtime/socket.scm[1.4]:
Change socket code to accept numeric service numbers.

1992-06-10 Guillermo J. Rozas <[email protected]>

* microcode/prim.c[9.34]:
(1 << foo) -> (1UL << foo)

* microcode/unxutl/Attic/cf-dist.h[1.14]:
Add alpha and power to the list of processors.

* microcode/bintopsb.c[9.52]:
Add static keyword to definition of ispunct so there won't be a
clonflict with an external routine of the same name.

* microcode/bignmint.h[1.2]:
(1 << something) replaced by (1UL << something).

* microcode/option.c[1.26]:
Add missing conditionalization.
option_edwin_defaults can only be used if HAS_COMPILER_SUPPORT.

* microcode/pruxenv.c[1.8]:
const -> CONST.

* microcode/prosfile.c[1.5]:
Flush unnecessary primitives FILE-OPEN-BINARY-INPUT-CHANNEL and
FILE-OPEN-BINARY-OUTPUT-CHANNEL.

1992-06-10 sybok <[email protected]>

* edwin/info.scm[1.111]:
Fix defaulting of info-menu command.

1992-06-09 aragorn <[email protected]>

* 6001/pic-reco.scm[1.4]:
changed to deal with new representation of pictures...

* 6001/pic-ops.scm[1.3]:
changed to deal with the changes to the way pictures are represented

1992-06-08 aragorn <[email protected]>

* 6001/pic-reco.scm[1.3], 6001/picture.scm[1.11]:
changed uses of floating-point-ref to vector-ref to deal with changes
in beginning of picture.scm. i.e.-to reduce size of pictures

* 6001/pic-ops.scm[1.2]:
changed uses of floating-point-ref to vector-ref to deal with changes
in picture.scm.

* edwin/debug.scm[1.2]:
Don't attempt to display the name of an undefined environment.

* 6001/pic-imag.scm[1.4], 6001/pic-read.scm[1.2],
6001/pic-reco.scm[1.2], 6001/picture.scm[1.10]:
Change representation of floating-point arrays in picture data
structures.

1992-06-05 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.94], edwin/intmod.scm[1.48]:
Changes for new debugger.

1992-06-05 Guillermo J. Rozas <[email protected]>

* microcode/uxtrap.h[1.14]:
i386 trap code in this file is only known to be valid for mach3.0.

* microcode/uxtop.c[1.9]:
Conditionalize for errnos not available in some systems.

* microcode/uxsock.h[1.4]:
Include osio.h.

* microcode/uxsock.c[1.10]:
Include osio.h that defines NO_CHANNELS.

* microcode/uxsig.c[1.23]:
Fix incorrect variable reference.

* microcode/ux.h[1.31]:
Remove redundant inclusion for compilers whose include files are not
protected against multiple inclusion.

* microcode/pruxsock.c[1.6]:
Conditionalize socket code better.

* microcode/pruxfs.c[9.49]:
ESTALE is not present in all versions of Unix.

* microcode/pruxenv.c[1.7]:
calls to gethostname need to be wrappend around HAVE_SOCKETS.

* microcode/option.c[1.25]:
Eliminate redundant include for compilers whose include files are not
protected against multiple inclusion.

* microcode/object.h[9.38]:
Eliminate word size dependencies: 1 -> 1L

* microcode/version.h[11.114]:
Fix a major bug in bchscheme, and minor changes for DOS.

* microcode/option.c[1.24]:
Bump 386's edwin constant space.

1992-06-04 Guillermo J. Rozas <[email protected]>

* microcode/bchgcc.h[9.50]:
Conditionalize definition of IO_PAGE_SIZE.

* microcode/bchgcc.h[9.49], microcode/bchgcc.h[9.48]:
Fix edit bug in last edit.

* microcode/bchgcc.h[9.47]:
Change IO_PAGE_SIZE for DOS.

* microcode/Attic/doskbd.c[1.7]:
Change default sense of kbd hooks. Now, by default, scheme _does not_
install keyboard hooks.

1992-06-04 Henry M. Wu <[email protected]>

* edwin/dos.scm[1.2]:
Added files to avoid for completion.

* cref/cref.sf[1.5]:
Fixed runtim.glob filename.

* cref/cref.sf[1.4]:
Made file loadable without having to first build the runtime system.

1992-06-03 Chris Hanson <[email protected]>

* 6001/picture.scm[1.9]:
Use new operation X-GRAPHICS/DISABLE-KEYBOARD-FOCUS to prevent the
window manager from giving keyboard focus to graphics windows.

* runtime/runtime.pkg[14.154], runtime/x11graph.scm[1.22]:
Add new operation X-GRAPHICS/DISABLE-KEYBOARD-FOCUS.

1992-06-03 Guillermo J. Rozas <[email protected]>

* microcode/bchmmg.c[9.75]:
Fix unit bug in read_newspace_address, and initialization bug in
INITIAL_SCAN_BUFFER .

* microcode/bchpur.c[9.58]:
Fix bug in updating Free_Constant.

* microcode/bchdmp.c[9.65], microcode/bchgcc.h[9.46]:
Change order of file inclusion and other small mods to satisfy vanilla sysv.

* microcode/bchdrn.h[1.4]:
Change order of file inclusion to satisfy vanilla sysv.

1992-06-02 Guillermo J. Rozas <[email protected]>

* microcode/dosutl/Attic/bch-prm.lst[1.2],
microcode/dosutl/Attic/bch-ztc.lst[1.2],
microcode/dosutl/Attic/scm-prm.lst[1.2],
microcode/dosutl/Attic/scm-ztc.lst[1.2]:
Remove graphics code -- not working.

1992-06-01 Chris Hanson <[email protected]>

* 6001/make.scm[15.5], runtime/usrint.scm[1.2]:
Add option to disable special handling of undefined values.

* 6001/make.scm[15.6], runtime/pp.scm[14.26]:
Add option to print NAMED-LAMBDA special form as LAMBDA. Change
default of *PP-NAMED-LAMBDA->DEFINE?* to false.

* 6001/nodefs.scm[1.6]:
Change output from definitions to use "-->" instead of ":" as
separator.

* edwin/evlcom.scm[1.37]:
Add code to disable evaluation commands in the transcript buffer.

* 6001/picture.scm[1.8]:
For some reason HP has decided that their 8-bit gray displays should
be GrayScale instead of StaticGray. This problem is compounded by
some program, probably MWM, which has preallocated some read/write
color cells, thus preventing us from allocating all 256 gray levels.
Grumble; work around this by only allocating 128 gray levels.

1992-06-01 Guillermo J. Rozas <[email protected]>

* microcode/option.c[1.23]:
Bump up DEFAULT_SMALL_CONSTANT for the 386 (again).

1992-06-01 u6001 <[email protected]>

* edwin/artdebug.scm[1.18]:
Fix typo.

1992-05-31 Henry M. Wu <[email protected]>

* runtime/dosprm.scm[1.8]:
Added test-and-set (file-touch) for call-with-temporary-filename.

1992-05-30 Henry M. Wu <[email protected]>

* runtime/option.scm[14.17]:
Changed timing of when the options directory is actualized so it can
be absent if the require option is already present.

* runtime/load.scm[14.37]:
Made packed file loader shadow file-directory? as well for option
files to win.

1992-05-29 Henry M. Wu <[email protected]>

* runtime/dosprm.scm[1.7]:
Upcasing environment variables.

* runtime/site.scm.dos[1.9]:
*** empty log message ***

1992-05-28 Guillermo J. Rozas <[email protected]>

* runtime/site.scm.dos[1.8], runtime/site.scm.dos[1.7]:
Upcase MITSCHEME_INF_DIRECTORY.

* microcode/Attic/dossig.c[1.3]:
Flesh out interactive help message.

* microcode/Attic/doskbd.c[1.6]:
Rename the environment variable used to disable the full keyboard
under DOSX, and add a way for disable the full keyboard under DPMI.

* microcode/primutl.c[9.56]:
Export strcmp_ci.

* microcode/Attic/dossig.c[1.2]:
Add Q as one of the options for the interactive handler.
Unfortunately, there is no convenient way to dismiss the interrupt
right now.

* edwin/make.scm[3.72]:
Change in DOS environment variables.

* edwin/ansi.scm[1.3]:
Clean up environment variables for foreground and background.

* edwin/termcap.scm[1.3]:
Remove spurious test.

1992-05-28 Henry M. Wu <[email protected]>

* runtime/dosprm.scm[1.6], runtime/dosprm.scm[1.5],
runtime/make.scm[14.36], runtime/site.scm.dos[1.6]:
Added reset-environment-variables!

* runtime/infutl.scm[1.41]:
*** empty log message ***

* runtime/infutl.scm[1.40], runtime/site.scm.dos[1.5],
runtime/site.scm.unix[1.9]:
Fixed directory rewriting.

* runtime/dospth.scm[1.5]:
Fixed dos filename parsing to handle environment variables.

* runtime/infutl.scm[1.39]:
Delayed expansion of rewritten directory name till use time.

* runtime/site.scm.dos[1.4]:
Added default mitscheme_inf_directory.

* runtime/infutl.scm[1.38], runtime/site.scm.dos[1.3]:
Made directory rewriting understand devices.

* runtime/dosprm.scm[1.4]:
Added Scheme level shadowing of environment variables.

1992-05-28 u6001 <[email protected]>

* 6001/picture.scm[1.7]:
Handle GrayScale visual type.

1992-05-27 Chris Hanson <[email protected]>

* runtime/cpress.scm[1.4]:
Repaginate.

1992-05-27 Guillermo J. Rozas <[email protected]>

* runtime/utabs.scm[14.11]:
Fix wrong variable name.

* runtime/utabs.scm[14.10]:
Fix missing parens bug.

* runtime/utabs.scm[14.9]:
Fix comparison bug in microcode identifications. The size of the
console should not be used.

* runtime/site.scm.dos[1.2]:
Fix unbound variable bug and flush unnecessary code.

* microcode/option.c[1.22]:
Fix edit bug.

* microcode/option.c[1.21]:
Edwin has a different default constant space size.

* runtime/load.scm[14.36]:
Fix typo.

* runtime/infutl.scm[1.37]:
Get rid of binf (which maps to bin on the pc).

* microcode/option.c[1.20]:
Make -fasl imply -large.

* runtime/load.scm[14.35]:
Add a patch for file-exists? in the packed binary loader so that edwin
can see the packed edwin.bad.

* microcode/option.c[1.19]:
Bump up i386 band sizes.

* compiler/base/toplev.scm[4.42]:
Rename "binf" files to "inf" because of conflicts on the PC.

1992-05-26 Guillermo J. Rozas <[email protected]>

* edwin/paths.scm[1.12]:
Add environment variables for Edwin directory pathnames.

* edwin/decls.scm[1.38], edwin/ed-ffi.scm[1.27], edwin/edwin.ldr[1.32],
edwin/edwin.pkg[1.93], edwin/make.scm[3.71]:
Rename tags to tagutl because of conflicts on DOS.

* runtime/load.scm[14.34], runtime/version.scm[14.152]:
load-packed-binaries now captures fasload as well, so that .bad files
can be collected into packed binaries.

* runtime/dospth.scm[1.4]:
Allow device names with more than one letter.

1992-05-26 Henry M. Wu <[email protected]>

* runtime/input.scm[14.15], runtime/output.scm[14.13]:
Added binary file support.

* runtime/cpress.scm[1.3], runtime/infutl.scm[1.33],
runtime/runtime.pkg[14.153]:
Exposed compression operations on ports.

* runtime/infstr.scm[1.6]:
Fix duplicate code problem.

* runtime/infutl.scm[1.32]:
Fix unbound variable problem.

* runtime/version.scm[14.153]:
Add support for trimmed and compressed debugging information files.

* runtime/infutl.scm[1.31]:
Fix typo.

* compiler/machines/spectrum/compiler.pkg[1.35]:
Eliminate duplicate import entry.

* compiler/machines/bobcat/compiler.pkg[1.36],
compiler/machines/i386/compiler.pkg[1.8],
compiler/machines/mips/compiler.pkg[1.6],
compiler/machines/vax/compiler.pkg[1.10]:
Add package support for dumping bif/bsm instead of inf/binf files.

* compiler/base/toplev.scm[4.41]:
Change default to dump .bci files.

* compiler/machines/spectrum/compiler.pkg[1.34]:
Add support for BIF/BSM files.

* compiler/base/toplev.scm[4.40], runtime/infutl.scm[1.30]:
Made BSM files optional.

* compiler/base/toplev.scm[4.39]:
Made fasdump quiet.

* runtime/global.scm[14.37], runtime/infutl.scm[1.29]:
Made FASDUMP not print if necessary.

* runtime/option.scm[14.15], runtime/runtime.pkg[14.152],
runtime/runtime.pkg[14.151]:
Added compress.

* runtime/infutl.scm[1.26]:
Made uncompress fault tolerant.

* runtime/infutl.scm[1.25]:
Added recognition of marker in compressed files.

* runtime/infstr.scm[1.5], runtime/infutl.scm[1.24],
runtime/infutl.scm[1.23]:
Added support of compressed info files and split symbol table files,
i.e. bif, bsm, bci, and bcs.

* runtime/cpress.scm[1.2], runtime/infutl.scm[1.36],
runtime/infutl.scm[1.35], runtime/infutl.scm[1.34],
runtime/infutl.scm[1.28], runtime/infutl.scm[1.27],
runtime/option.scm[14.16], runtime/output.scm[14.14],
runtime/unxprm.scm[1.18]:
*** empty log message ***

* runtime/dosprm.scm[1.3], runtime/unxprm.scm[1.17]:
Added CALL-WITH-TEMPORARY-FILENAME.

1992-05-25 Chris Hanson <[email protected]>

* microcode/option.c[1.18]:
Fix bug in last change.

1992-05-25 Guillermo J. Rozas <[email protected]>

* microcode/Attic/doskbd.c[1.5], microcode/Attic/prdosenv.c[1.3]:
Add a primitive to disable/change translations by the interrupt
handler.

1992-05-23 Guillermo J. Rozas <[email protected]>

* microcode/option.c[1.17], microcode/version.h[11.113]:
Not finding a utabmd file does not cause the microcode to halt unless
we are cold-loading (i.e. using the -fasl option).

* microcode/cmpintmd/hppa.h[1.33], microcode/option.h[1.9]:
Change search_path_for_file.

* runtime/runtime.pkg[14.150], runtime/savres.scm[14.25]:
Change read-microcode-tables! to re-read-microcode-tables!

* runtime/utabs.scm[14.8]:
Remove call to add-event-receiver! re-read-microcode-tables!
(previously read-microcode-tables!) is called directly by code in
savres.scm .

* runtime/load.scm[14.33], runtime/runtime.pkg[14.149]:
Add a packed binary loader so that the compiler (or edwin) can be
shipped as a single binary to be loaded on top of a vanilla runtime
system.

1992-05-22 Guillermo J. Rozas <[email protected]>

* runtime/version.scm[14.151]:
Add support for loading packed binaries.

* microcode/xdebug.c[9.30]:
Fix syntactic bugs (missing commas) and add a missing cast.

1992-05-21 Chris Hanson <[email protected]>

* microcode/x11base.c[1.40]:
Change default font to "fixed". Add conditional macro to override
this at compile time.

* microcode/x11base.c[1.39]:
Change default border/internal-border to match Emacs.

* edwin/edwin.pkg[1.92], edwin/intmod.scm[1.47]:
Add new procedure BUFFER/INFERIOR-CMDL for examining buffers with
inferior CMDL threads.

1992-05-20 Chris Hanson <[email protected]>

* runtime/pp.scm[14.25]:
Don't use argument to GENERATE-UNINTERNED-SYMBOL.

1992-05-18 Chris Hanson <[email protected]>

* edwin/simple.scm[1.44]:
Fix SIGSEGV bug in GUARANTEE-NEWLINES.

1992-05-15 Guillermo J. Rozas <[email protected]>

* microcode/bintopsb.c[9.51]:
Fix bogus declaration.

1992-05-14 Chris Hanson <[email protected]>

* edwin/fill.scm[1.55]:
Eliminate possible infinite loops in auto-fill commands.

* compiler/machines/spectrum/rulrew.scm[1.8]:
Eliminate rewriting rules that produce patterns with constant datum
and register type.

* edwin/comred.scm[1.94], edwin/fill.scm[1.54]:
Redefine auto-fill minor mode so that it has no effect if the commands
being overridden are not the expected ones.

1992-05-14 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/lapgen.scm[4.43],
compiler/machines/i386/lapgen.scm[1.20],
compiler/machines/mips/lapgen.scm[1.9],
compiler/machines/spectrum/lapgen.scm[4.38],
compiler/machines/vax/lapgen.scm[4.12]:
Change lap:make-label-statement to use LAP instead of INST.

* compiler/machines/bobcat/compiler.pkg[1.35],
compiler/machines/i386/compiler.pkg[1.7],
compiler/machines/mips/compiler.pkg[1.5],
compiler/machines/spectrum/compiler.pkg[1.33],
compiler/machines/vax/compiler.pkg[1.9]:
Export add-end-of-block-code! and initialize-lap-linearizer!

* compiler/back/linear.scm[4.14]:
Use ,@ instead of , for the result of lap:make-label-statement.

* compiler/base/toplev.scm[4.38]:
Add a call to initialize-lap-linearizer! to phase/lap-generation.

* compiler/back/linear.scm[4.13]:
Forgot to change the copyright date.

* compiler/back/linear.scm[4.12]:
Add add-end-of-block-code! and support.

1992-05-13 Brian A. LaMacchia <[email protected]>

* microcode/x11graph.c[1.26]:
*** empty log message ***

* runtime/x11graph.scm[1.21]:
added x-graphics-fill-polygon and x-graphics/fill-polygon

* microcode/x11graph.c[1.24]:
Added x-graphics-fill-polygon

1992-05-13 Chris Hanson <[email protected]>

* microcode/x11graph.c[1.25]:
Rewrite uses x_polygon_vector_arg to capture notion of external
representation of polygon as vector of alternating x and y
coordinates.

* microcode/cmpgc.h[1.16.1.1], microcode/cmpint.c[1.38.1.1]:
Changes for Sun 4 release.

1992-05-13 Guillermo J. Rozas <[email protected]>

* microcode/Attic/prdosenv.c[1.2]:
Add a primitive to set the keyboard modifier bit mask.

* microcode/Attic/doskbd.c[1.4], microcode/Attic/doskbutl.asm[1.2]:
Fix ^Space and the modifier bit mask for P.

1992-05-13 Henry M. Wu <[email protected]>

* runtime/dosprm.scm[1.2]:
Deleted bogus primitives.

1992-05-12 Chris Hanson <[email protected]>

* edwin/process.scm[1.24]:
RUN-SYNCHRONOUS-PROCESS must close the SUBPROCESS-OUTPUT-CHANNEL after
all of the input region is written, otherwise the subprocess doesn't
know that there is no more data. This was being done in the case
where the subprocess generated output, but not otherwise.

1992-05-12 Henry M. Wu <[email protected]>

* edwin/edwin.ldr[1.31]:
Implemented conditional loading of files to make both DOS + Unix happy.
Fixed typo.

* edwin/edwin.ldr[1.30], edwin/edwin.sf[1.10], edwin/make.scm[3.70]:
Implemented conditional loading of files to make both DOS + Unix happy.

* edwin/decls.scm[1.37], edwin/edwin.pkg[1.91]:
Added DOS related files.

* runtime/runtime.sf[14.8]:
*** empty log message ***

* microcode/Attic/doskbd.c[1.3]:
Added environment variable to disable keyboard hooking on problematic
machines.

* runtime/runtime.sf[14.7]:
Added generation of runtim.bad file.

1992-05-11 Guillermo J. Rozas <[email protected]>

* runtime/utabs.scm[14.7]:
event:after-restore now invokes re-read-microcode-tables! instead of
read-microcode-tables! re-read-microcode-tables! does not complain if
the microcode identification (including version) has not changed an
the utabmd.bin file is not found.

1992-05-11 Henry M. Wu <[email protected]>

* edwin/ansi.scm[1.2]:
Fixed color modes.

1992-05-10 Guillermo J. Rozas <[email protected]>

* microcode/Attic/doskbd.c[1.2]:
Re-enable qemm386 test.

* runtime/global.scm[14.36]:
Add Matt Birkholz's new fasdump, which has a restart.

1992-05-08 Henry M. Wu <[email protected]>

* microcode/Attic/dosfg.c[1.2]:
Fixed arity bug in set-line-color!

1992-05-07 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.148], runtime/x11graph.scm[1.20]:
Add new operation X-GRAPHICS/READ-BUTTON.

* edwin/tterm.scm[1.17]:
WRAP-UPDATE! operation must return result of the THUNK argument as its
result.

1992-05-06 Guillermo J. Rozas <[email protected]>

* microcode/uxenv.c[1.7]:
Fix a problem in OS_current_user_name under Ultrix.

1992-05-05 Guillermo J. Rozas <[email protected]>

* microcode/ossig.h[1.2]:
Add more handlers.

* microcode/uxterm.c[1.19]:
Include ospty.h.

* microcode/osctty.h[1.2], microcode/prostty.c[1.4],
microcode/uxctty.c[1.11]:
Add new interrupt character procedures.

* microcode/osterm.h[1.9]:
Split into osterm.h and ospty.h

* microcode/prosterm.c[1.12]:
Split into prosterm.c and prospty.c.

* microcode/unxutl/Attic/ymkfile[1.55]:
DOS/386 changes:
Split prosterm.c into prosterm.c and prospty.c
Abstract some stuff in prostty.c so that it is not so Unix-dependent.

* microcode/option.c[1.16]:
DOS/386 changes: The 386 needs a larger default constant space.

* microcode/Attic/config.h[9.71]:
DOS/386 changes. There was redundant conditionalization previously.

1992-05-04 Guillermo J. Rozas <[email protected]>

* microcode/Attic/oscond.h[1.8], microcode/prosfs.c[1.8]:
More DOS changes.

* microcode/option.c[1.15]:
More DOS changes. Absolute pathnames have different syntax.

* microcode/bchdmp.c[9.64], microcode/bchgcc.h[9.45],
microcode/bchgcl.c[9.44], microcode/bchmmg.c[9.74],
microcode/bchpur.c[9.57], microcode/cmpintmd/i386.h[1.17]:
Many changes to make bchscheme work on the 386.

1992-04-30 Chris Hanson <[email protected]>

* rcs/mklogs.scm[1.4]:
Change to reflect source tree.

* microcode/version.h[11.112]:
Changes for Sony NEWS-OS 5.0.2.

* microcode/unxutl/Attic/config[1.15]:
Sony NEWS-OS 5.0.2 requires special options not common to other SVR4
implementations.

* microcode/uxtrap.h[1.13]:
Sony NEWS-OS 5.0.2 changed the name of the general register set
element of the ucontext structure.

1992-04-29 Brian A. LaMacchia <[email protected]>

* edwin/rmail.scm[1.18]:
Fixed bug in rmail-edit-current-msg which manifests only
on the last message in the RMAIL file.

* edwin/rmail.scm[1.17]:
Added rmail-edit-current-message.

* edwin/unix.scm[1.26]:
Disable auto-save when reading in an encrypted file.

1992-04-24 Henry M. Wu <[email protected]>

* microcode/starbase.c[1.5]:
Fixed typo (missing DEVICE) in comment.

1992-04-23 Brian A. LaMacchia <[email protected]>

* edwin/rmailsum.scm[1.22]:
Revert back to version 1.20.

* edwin/rmailsum.scm[1.21]:
Added support for #\R in rmail-summary mode.

1992-04-22 Henry M. Wu <[email protected]>

* edwin/edwin.ldr[1.29]:
Fixed typo.

* edwin/decls.scm[1.36], edwin/edwin.ldr[1.28], edwin/edwin.pkg[1.90]:
Added ansi.scm to emulate a DOS ANSI.SYS terminal.

* edwin/termcap.scm[1.2]:
Check for PC terminal types so that termcap can be emulated.

* edwin/modefs.scm[1.139]:
Made special keys not essential.

* edwin/display.scm[1.5], edwin/editor.scm[1.221]:
Changed display type parsing for DOS.

* edwin/dired.scm[1.125]:
Added DOS changes. Added a Scheme version of ls.

* edwin/calias.scm[1.13]:
Made special-keys not required.

* edwin/dired.scm[1.124], edwin/unix.scm[1.25]:
Added os/auto-save-filename? to replace dependent code in dired.scm.

1992-04-21 Arthur Gleckler <[email protected]>

* edwin/outline.scm[1.5]:
Remove an unused procedure.

Add FORWARD- and BACKWARD-DOWN-TOPIC.

* edwin/outline.scm[1.4]:
Make Outline mode key bindings match Emacs.

1992-04-21 Henry M. Wu <[email protected]>

* edwin/filcom.scm[1.167], edwin/unix.scm[1.24]:
Added OS/COMPLETION-IGNORE-FILENAME? to unix.scm

1992-04-18 Brian A. LaMacchia <[email protected]>

* edwin/dired.scm[1.123]:
Added dired-compress and dired-uncompress.

1992-04-18 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rulfix.scm[1.25]:
Fix yet another register allocation bug in division.

* microcode/psbmap.h[9.37]:
Fix ordering bug.

* microcode/comlin.h[1.5]:
Prevent multiple definition of true and false.

* microcode/psbmap.h[9.36]:
Add missing arguments to error fprintf in setup_io.

1992-04-17 Arthur Gleckler <[email protected]>

* edwin/outline.scm[1.3]:
Fix bug in TOPIC-REGION.

* edwin/outline.scm[1.2]:
Add NARROW-TO-TOPIC to outline minor mode.

* edwin/decls.scm[1.35], edwin/ed-ffi.scm[1.26], edwin/edwin.ldr[1.27],
edwin/edwin.pkg[1.89]:
Add new outline minor mode.

1992-04-17 Guillermo J. Rozas <[email protected]>

* compiler/base/crsend.scm[1.7]:
Add defn. of ucode-primitive so the file can just be loaded without
having to syntax it.

* edwin/fileio.scm[1.108]:
Add knowledge about end-of-line translation.

1992-04-16 Chris Hanson <[email protected]>

* edwin/bufcom.scm[1.93], edwin/bufmnu.scm[1.119],
edwin/bufout.scm[1.8], edwin/edwin.pkg[1.88], edwin/info.scm[1.110],
edwin/kmacro.scm[1.38]:
Define new procedure CALL-WITH-OUTPUT-MARK, and change most calls to
WITH-OUTPUT-TO-MARK to use the new procedure instead.

1992-04-16 Guillermo J. Rozas <[email protected]>

* runtime/dospth.scm[1.3], runtime/fileio.scm[1.4],
runtime/io.scm[14.30], runtime/pathnm.scm[14.20],
runtime/runtime.pkg[14.147], runtime/unxpth.scm[14.11],
runtime/version.scm[14.150]:
Teach the runtime system how to handle files whose lines end in
something other than newline.

* compiler/machines/i386/rulfix.scm[1.24]:
Fix quoting problem in plus-fixnum.

1992-04-14 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rulfix.scm[1.23]:
Fix register ordering conflict in the division routines.

* microcode/cmpauxmd/i386.m4[1.23]:
Add floating-point conditionalization so that the microcode will run
on machines with and without floating-point instructions.

The test depends on the host OS correctly setting the processor's CR0
(status word) bits.

* microcode/cmpintmd/i386.h[1.16]:
Add floating-point conditionalization so that the microcode will run
on machines with and without floating-point instructions.

* microcode/prosfile.c[1.4]:
Add FILE-OPEN-BINARY-INPUT-CHANNEL and FILE-OPEN-BINARY-OUTPUT-CHANNEL
for systems where text files and binary files are distinct.

* runtime/dospth.scm[1.2]:
Pathnames missing devices were using 'UNSPECIFIC rather than #F.
'UNSPECIFIC means that the field is meaningless in the host file system.
#F means that it was not specified.

1992-04-13 Chris Hanson <[email protected]>

* 6001/make.scm[15.4]:
Set evaluate-in-inferior-repl to true.

* 6001/pic-imag.scm[1.3]:
Add range limiting for gray pixel values.

1992-04-13 Hal Abelson <[email protected]>

* 6001/6001.pkg[1.3], 6001/pic-imag.scm[1.2], 6001/picture.scm[1.6]:
* Change allocation of grays in colormap so that this works on 8-bit
pseudo color displays.

* Rename FUNCTION->PICTURE as PROCEDURE->PICTURE.

* Don't export PICTURE-READ and PICTURE-WRITE.

* Add new procedure PICTURE->PGM-FILE.

* runtime/runtime.pkg[14.146], runtime/x11graph.scm[1.19]:
Add operation to get x-display object from an X graphics device. Add
property list to x-display object.

1992-04-13 Guillermo J. Rozas <[email protected]>

* compiler/base/make.scm[4.90]:
A few little changes, plus,

Change conditionalization of the open-coding of floating-point
primitives. It was previously done statically when the compiler was
built. It is now done at the point of the call, so the switch can be
meaningfully fluid-let around a compilation.

Add the unsafe open-coding of integer->char.
Add a couple of optimizations to plus-fixnum and minus-fixnum.

* compiler/rtlgen/opncod.scm[4.47]:
Change conditionalization of the open-coding of floating-point
primitives. It was previously done statically when the compiler was
built. It is now done at the point of the call, so the switch can be
meaningfully fluid-let around a compilation.

Add the unsafe open-coding of integer->char.
Add a couple of optimizations to plus-fixnum and minus-fixnum.

1992-04-11 Guillermo J. Rozas <[email protected]>

* runtime/make.scm[14.35], runtime/pathnm.scm[14.19],
runtime/runtime.pkg[14.145], runtime/unxpth.scm[14.10],
runtime/version.scm[14.149]:
Add changes for DOS:

- Add dos-specific packages, similar to Unix packages.
- Conditionalize the loading of the Unix and DOS -specific packages.
- Add a mechanism to make.scm to avoid loading unconditional files:
If the binary file runtim.bad is in the current directory when make
is running, it should contain a list of strings, each the name of a
file that should be avoided. Examples: graphics, x11graph, starbase.
- pathnm.scm now uses the OS-NAME-STRING in the microcode
identification to initialize the default host. It no longer
constructs the host types. These are constructed when the
system-dependent files invoke add-pathname-host-type!
Caveat: There is now a funny ordering dependency.
pathnm must be loaded before the system-dependeng files (unxpth, dospth)
but it must be initialized _afterwards_!
- pathnm.scm now has symbolic names for three file system types: Unix,
DOS, and VMS.

1992-04-10 Chris Hanson <[email protected]>

* edwin/curren.scm[1.103]:
Add hooks to be run when a buffer is renamed. Generalize hooks
mechanism to simplify addition of other types of hooks.

* edwin/ed-ffi.scm[1.25]:
Supply missing information for "compile.scm".

1992-04-09 Chris Hanson <[email protected]>

* edwin/decls.scm[1.34], edwin/ed-ffi.scm[1.24], edwin/edwin.ldr[1.26],
edwin/edwin.pkg[1.87], edwin/edwin.pkg[1.86], edwin/replaz.scm[1.77]:
Add occurrence commands.

1992-04-08 Chris Hanson <[email protected]>

* 6001/make.scm[15.3]:
Update to match recent change to Edwin.

* edwin/comred.scm[1.93], edwin/curren.scm[1.102],
edwin/edwin.pkg[1.85], edwin/evlcom.scm[1.36],
edwin/filcom.scm[1.166], edwin/intmod.scm[1.46],
edwin/modlin.scm[1.14], edwin/schmod.scm[1.26]:
Support to permit evaluation commands to work more like those in the
Emacs interface.

* Add new variable EVALUATE-IN-INFERIOR-REPL. If true (default is
false), the evaluation commands operate by transmitting expressions
to an inferior REPL. The REPL used is the least-recently-started
inferior REPL (usually the one started when the editor is first
entered). When this variable is true, the RUN-LIGHT in Scheme
buffers is that of the inferior REPL.

* Evaluation commands no longer recognize the prefix argument to have
special meaning.

* The default value of MODE-LINE-PROCESS no longer displays RUN-LIGHT.
This is bound in Scheme mode now.

* The commands M-x set-environment and M-x set-syntax-table now bind
the associated variables locally in the current buffer.
Additionally, they may locally bind the variable
EVALUATE-IN-INFERIOR-REPL to false if the buffer has local
definitions of environment or syntax-table.

* When EVALUATE-IN-INFERIOR-REPL is true, C-c C-c will signal a ^G
interrupt to the inferior REPL when typed in any Scheme mode buffer.

* Add kill-buffer hooks to allow arbitrary actions to be executed when
a buffer is killed. Change inferior REPL support to use this
mechanism to kill the inferior REPL thread when its buffer is
killed.

1992-04-07 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.155]:
Fix some bugs in last change.

* edwin/buffer.scm[1.154], edwin/buffrm.scm[1.42],
edwin/comman.scm[1.69]:
Redesign local-variable binding mechanism so that default global value
is always stored in a special slot in the variable object. Variable
assignment daemons are now called only when the value changes in some
perceptible way, not when the local bindings are swapped in or out of
the value cache. Also, variable assignment daemons now take an
additional argument, either a buffer or #F, indicating whether the
change is local or global.

* edwin/bufset.scm[1.10], edwin/editor.scm[1.220]:
Change WITHIN-EDITOR? to a variable instead of a procedure, for speed.

* compiler/back/lapgn3.scm[4.8], compiler/base/switch.scm[4.17]:
Add switch COMPILER:COALESCING-CONSTANT-WARNINGS? to disable these
warnings, since they are so common.

1992-04-07 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/rulfix.scm[4.39]:
Teach fixnum-quotient about powers of two that don't fit in an ADDI
instruction.

* compiler/back/lapgn3.scm[4.9]:
Make the coalescing message only print one copy of the object, since
they will print the same.

1992-04-06 Brian A. LaMacchia <[email protected]>

* edwin/edwin.pkg[1.84], edwin/prompt.scm[1.154]:
Added support for .KY files.

* runtime/ed-ffi.scm[1.5], runtime/runtime.pkg[14.144]:
Addded krypt as a load-option.

* runtime/option.scm[14.14]:
Addded krypt to list of options.

* edwin/unix.scm[1.23], runtime/krypt.scm[1.7]:
*** empty log message ***

1992-04-06 Chris Hanson <[email protected]>

* runtime/error.scm[14.31], runtime/rep.scm[14.27],
runtime/runtime.pkg[14.143]:
Change BKPT back to a macro so it can put the REPL in the appropriate
environment.

* 6001/nodefs.scm[1.5]:
Abbreviate the value displayed by DEFINE.

* edwin/schmod.scm[1.25]:
Invert the meaning of the prefix argument to M-tab in Scheme mode.

1992-04-05 Arthur Gleckler <[email protected]>

* edwin/curren.scm[1.101]:
Make GLOBAL-WINDOW-MODELINE-EVENT! handle all windows, not just those
in the selected screen.

1992-04-05 Guillermo J. Rozas <[email protected]>

* runtime/load.scm[14.32]:
Add load/current-pathname fluid let by each load so that the binary
unpacker can grab it.

1992-04-04 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.153], edwin/debuge.scm[1.45],
edwin/editor.scm[1.219], edwin/edwin.pkg[1.83],
edwin/fileio.scm[1.107], edwin/grpops.scm[1.16]:
Considerable tuning of the group insert/delete operations.

* Eliminate buffer-modification-daemon; change group insert/delete
operations to set the GROUP-MODIFIED? flag directly, and change the
auto-save code to work around that flag. Now, buffers that are not
visible have no insert or delete daemons, and the group
insert/delete operations notice this to eliminate a procedure call.

* The editor now has a GC daemon that cleans the marks list of every
known buffer. The allows FOR-EACH-MARK to be inline-coded in the
group insert/delete operations.

* Eliminate bug in GROUP-DELETE!: when the gap exceeded
GAP-MAXIMUM-EXTRA, it was being reduced to GAP-MAXIMUM-EXTRA. Thus
a series of deletions would cause the gap to reach that size, then
each subsequent deletion in the series would pay for a gap
reduction, which can be thousands (or even millions) of
instructions, depending on the size of the buffer. Now when the gap
reaches maximum size, it is reduced to GAP-ALLOCATION-EXTRA,
allowing the gap reduction to be amortized over many deletions.

* edwin/manual.scm[1.9]:
Tune the man-page cleaning code. This tuning is perhaps excessive, as
it turns out that most of the time was being lost in GROUP-DELETE! due
to a bug; perhaps the code should now be simplified.

* edwin/undo.scm[1.50]:
Tune the undo insert/delete recorders to make sure that no time is
wasted. These are called very often and must be fast.

* edwin/autold.scm[1.52]:
Add missing (lambda () ...) to M-x load-library.

1992-04-02 Brian A. LaMacchia <[email protected]>

* runtime/krypt.scm[1.6]:
*** empty log message ***

1992-04-02 Chris Hanson <[email protected]>

* microcode/regex.c[1.11]:
Increase size of failure stack in regular expression matcher.

* edwin/regexp.scm[1.62]:
Optimize DELETE-MATCH for speed.

* edwin/manual.scm[1.8]:
Optimize NUKE-NROFF-BS for speed.

* runtime/runtime.pkg[14.142]:
Export STACK-FRAME/COMPILED-CODE? to global package.

1992-04-01 Arthur Gleckler <[email protected]>

* runtime/x11graph.scm[1.18]:
Fix wrong-number-of-arguments bug in X-GRAPHICS/QUERY-POINTER calling
X-GRAPHICS-MAP-X-COORDINATE and X-GRAPHICS-MAP-Y-COORDINATE.

* compiler/rtlgen/rgcomb.scm[4.17]:
Make wrong-arity primitives cause an error in addition to a warning.
(Jinx and Arthur)

1992-04-01 Chris Hanson <[email protected]>

* edwin/schmod.scm[1.24]:
Eliminate M-g and M-q from Scheme mode.

1992-03-31 Brian A. LaMacchia <[email protected]>

* runtime/krypt.scm[1.5]:
As fast as the C code...

1992-03-31 Chris Hanson <[email protected]>

* edwin/screen.scm[1.100]:
Always update the cursor position after a successful screen update,
because the termcap interface doesn't know where it should be and can
leave it in the wrong place.

1992-03-31 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rulrew.scm[1.11]:
Add rewriting rule for FIXNUM-LSH with constant second argument.

* compiler/machines/spectrum/rulrew.scm[1.7]:
Clean up tests.

* compiler/machines/bobcat/rulrew.scm[1.5]:
Add FIXNUM-LSH rewrite rule so that shifts by constants will always be
combined.

* compiler/machines/spectrum/rulrew.scm[1.6]:
Edit bug in last change.

* compiler/machines/spectrum/rulrew.scm[1.5]:
Add rewriting rules so that FIXNUM-LSH, FIXNUM-QUOTIENT, and
FIXNUM-REMAINDER will not go out of line when the second argument is
an appropriate constant.

Improve rewriting rules for MULTIPLY-FIXNUM to handle all powers of 2,
and not only 4!

* compiler/machines/spectrum/rulfix.scm[4.38]:
Change multiply-fixnum rules to handle any power of 2, not only 4!

1992-03-30 Brian A. LaMacchia <[email protected]>

* runtime/krypt.scm[1.4], runtime/krypt.scm[1.3],
runtime/krypt.scm[1.2]:
*** empty log message ***

1992-03-30 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/i386.h[1.15]:
Replace `shortcircuit' by `sc' because of identifier length problems
in DOS.

* microcode/cmpauxmd/i386.m4[1.22]:
Another set of changes for DOS. In particular, replace `shortcircuit' by
`sc' because of identifier length problems.

1992-03-27 Chris Hanson <[email protected]>

* microcode/prosproc.c[1.12]:
Fix declarations to match `OS_make_subprocess'.

1992-03-27 Hal Abelson <[email protected]>

* 6001/picture.scm[1.5]:
Change MAKE-WINDOW to work on B&W display.

1992-03-26 Chris Hanson <[email protected]>

* 6001/nodefs.scm[1.4]:
Handle (DEFINE <name>) without error.

* edwin/xcom.scm[1.8]:
New command M-x x-auto-raise-mode toggles auto-raise mode on and off.

* 6001/make.scm[15.2]:
Move switch settings back to this file from the init files.

* microcode/uxio.c[1.21]:
Don't declare `select' in recent releases of HP-UX; that is done in a
standard header file.

* microcode/bchdmp.c[9.63]:
Eliminate mismatched declaration of `ftruncate' for SYSV4.

* microcode/uxtrap.c[1.19]:
Patch to previous change.

* microcode/osproc.h[1.7], microcode/uxproc.c[1.14]:
Fix declaration of arguments passed to `execve'.

* microcode/uxtrap.c[1.18]:
Eliminate conflicting definition.

* microcode/Attic/config.h[9.70], microcode/Attic/oscond.h[1.7],
microcode/bchdmp.c[9.62], microcode/bchdrn.c[1.4],
microcode/bchmmg.c[9.73], microcode/bchmmg.c[9.72],
microcode/m/Attic/hp9k800.h[1.8], microcode/pruxenv.c[1.6]:
Do the right thing for hpux with the ANSI compiler.

* microcode/Attic/oscond.h[1.6]:
Set _HPUX_VERSION for release 8.0.

* edwin/edwin.pkg[1.82]:
Export switch to control "auto-raise" feature of X screens.

* runtime/runtime.pkg[14.141], runtime/x11graph.scm[1.17]:
Add switch to control "auto-raise" feature of X graphics windows.

1992-03-25 Chris Hanson <[email protected]>

* runtime/pp.scm[14.24], runtime/runtime.pkg[14.140]:
Add switch to control behavior of PP when AS-CODE? argument is
defaulted.

* 6001/picture.scm[1.4]:
Fix oversight in last edit.

* runtime/rep.scm[14.26], runtime/runtime.pkg[14.139],
runtime/unpars.scm[14.26]:
Add several new switches to control appearance of objects and REPL.

* 6001/make.scm[15.1]:
Don't initialize Edwin here; do that in ".edwin" file instead.

* 6001/6001.pkg[1.2], 6001/picture.scm[1.3]:
Change to match recent changes to X11 graphics in runtime system.
Paginate code.

* 6001/6001.sf[1.4]:
Don't generate full CREF.

* edwin/edwin.pkg[1.81]:
Export control variables from inferior REPL package.

* edwin/xterm.scm[1.33]:
Make Edwin window have X resource class "Emacs".

1992-03-24 Chris Hanson <[email protected]>

* edwin/decls.scm[1.33], edwin/edwin.ldr[1.25], edwin/edwin.pkg[1.80],
edwin/make.scm[3.69]:
Add new file "compile.scm".

* runtime/process.scm[1.15]:
Change subprocess status operation to work correctly after subprocess
has been deleted.

* edwin/process.scm[1.23]:
Pass Emacs-style status message to process sentinel.

1992-03-20 Chris Hanson <[email protected]>

* runtime/rep.scm[14.25], runtime/runtime.pkg[14.138],
runtime/thread.scm[1.4], runtime/version.scm[14.148],
runtime/x11graph.scm[1.16]:
This runtime system requires microcode version 11.111 or later.

* Allow CREATE-THREAD to accept #F as its first argument, and to use a
default continuation in that case. Define
WITH-CREATE-THREAD-CONTINUATION to bind that default; change
CMDL/START to cause the default continuation to be bound to the
continuation of the CMDL driver.

* Add new operations to x-graphics devices: RAISE-WINDOW,
LOWER-WINDOW, WITHDRAW-WINDOW, QUERY-POINTER. Delete UNMAP-WINDOW
operation which is superseded by WITHDRAW-WINDOW.

* Add new operations X-GRAPHICS/OPEN-DISPLAY and
X-GRAPHICS/CLOSE-DISPLAY. The value returned by
X-GRAPHICS/OPEN-DISPLAY may be passed to MAKE-GRAPHICS-DEVICE as a
second argument when making x-graphics devices.

* Export virtually all x-graphics operations by name as
X-GRAPHICS/foo.

* Extensive redesign of X graphics internals. Now events are handled
asynchronously by a separate thread, one per display connection.
Graphics windows now participate in the DELETE-WINDOW protocol, so
that closing a window with the window manager has the desired effect
rather than killing the Scheme process. Display connections are
memoized, and are reclaimed by garbage collection when no longer
used. Closing a display connection closes all of the windows
associated with it.

1992-03-17 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/makefile[1.17]:
Fix "clean" rule to get everything.

1992-03-16 Arthur Gleckler <[email protected]>

* runtime/graphics.scm[1.5]:
Change graphics operations to receive the device, not just the
descriptor, of the graphics object on which they are operating.

1992-03-16 Chris Hanson <[email protected]>

* microcode/m/Attic/hp9k300.h[1.8], microcode/m/Attic/hp9k400.h[1.3]:
Changes for HP-UX 8.0.

* microcode/version.h[11.111]:
Various changes that are required by runtime 14.148 and later.
Upwards compatible with earlier versions of the runtime system.

* microcode/x11graph.c[1.23]:
When creating a graphics window, set the WM keyboard input hint to
false; this can be changed later if keyboard input is desired.

* microcode/x11base.c[1.38]:
Change X-DISPLAY-PROCESS-EVENTS to allow second argument to specify
that UX_select should not be used (i.e. that subprocess input and
interrupts should be ignored).

1992-03-16 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/i386.m4[1.21]:
Change the syntax of indirect jumps for DOS.

1992-03-16 Henry M. Wu <[email protected]>

* microcode/bchmmg.c[9.71]:
Don't unlink file before closing it if the system does not allow that.
Fixed Reset_Memory to remember to unlink file.

1992-03-14 Chris Hanson <[email protected]>

* microcode/s/Attic/hpux.h[1.9]:
Add -I and -L switches needed for release 8.0. Add dynamic loader
support.

* microcode/version.h[11.110]:
*** empty log message ***

* microcode/x11base.c[1.37]:
* Add support for NotifyVisibility events.

* Change MotionNotify events to include state information.
Also use PointerMotionHintMask to limit the amount of traffic when
these events are enabled.

* Add new primitives

X-WINDOW-COORDS-ROOT->LOCAL
X-WINDOW-COORDS-LOCAL->ROOT
X-WINDOW-RAISE
X-WINDOW-LOWER
X-WINDOW-QUERY-POINTER

* Fix X-WINDOW-SET-POSITION so that it works correctly with
reparenting window managers.

* microcode/x11term.c[1.20]:
Use XWMGeometry instead of XGeometry.

* edwin/xterm.scm[1.32]:
Add support for tracking VisibilityNotify events. Use this support to
implement optional "auto raise" feature that raises the selected
screen whenever the user types.

1992-03-13 Chris Hanson <[email protected]>

* edwin/xcom.scm[1.7]:
Add commands to raise and lower the current X window in the stacking
order. Change default icon-name format to be "edwin".

* edwin/screen.scm[1.99]:
Change SCREEN-VISIBLE? to be true for a visibility of
'PARTIALLY-OBSCURED as well as the usual 'VISIBLE.

* edwin/screen.scm[1.98]:
Eliminate unused bound variable in SCREEN-UPDATE.

* compiler/machines/mips/instr1.scm[1.5]:
Change definition of NOP instruction to match that used by MIPS
compilers. Otherwise machine-language debuggers like GDB won't show
this instruction as a NOP.

* microcode/m/Attic/mips.h[1.5]:
Add option to use ALTERNATE_CC on the MIPS. GCC 2.0 works admirably.

* edwin/make.scm[3.68]:
*** empty log message ***

* edwin/buffrm.scm[1.41], edwin/bufwin.scm[1.296],
edwin/modwin.scm[1.39], edwin/window.scm[1.155]:
* Change all places that call UPDATE-INFERIOR! to test the redisplay
flags before doing the call. Change UPDATE-INFERIOR! to eliminate
the test. This change avoids a close-coded call with many arguments
if it is unnecessary.

* Many of the low-level :UPDATE-DISPLAY! methods always return #T.
Take advantage of this fact to eliminate unnecessary tests in the
callers.

* WINDOW-MODELINE-EVENT! was informing the modeline window of the
event by means of a message. Change this to a procedure call.

* Change WINDOW-NEEDS-REDISPLAY! and INFERIOR-NEEDS-REDISPLAY! to
avoid close-coded call to SETUP-REDISPLAY-FLAGS! when it is
unnecessary.

* Add declarations to cause CLIP-WINDOW-REGION-1 to be open-coded.
This eliminates two close-coded calls and generation of a closure
over many variables.

* edwin/edwin.pkg[1.79], edwin/intmod.scm[1.45]:
* Change the name of the initial repl buffer to "*scheme*".

* Add new editor variable REPL-ENABLE-TRANSCRIPT-BUFFER that causes
repl buffer transactions to be added to the transcript buffer (if it
is enabled). Default for this variable is enabled.

* Add new editor variable REPL-ERROR-DECISION to control the behavior
of a repl buffer when an evaluation error occurs. If enabled, the
user is forced to choose between debugging the error and aborting
from it. The default for this variable is disabled.

* Add code to prod the editor after the run-light has been updated by
an inferior repl. Otherwise the editor might not notice the change
until later.

* Change the name of the INFERIOR-DEBUGGER mode to be INFERIOR-CMDL.
Change the modeline name of the INFERIOR-REPL mode to be "REPL".
Change the modeline name of the INFERIOR-CMDL mode to be "CMDL".
Change the names of the INFERIOR-REPL-foo interrupt commands to be
INFERIOR-CMDL-foo. Change the name of the
INFERIOR-DEBUGGER-SELF-INSERT command to INFERIOR-CMDL-SELF-INSERT.

* edwin/screen.scm[1.97]:
* (update-screen!): Clear the NEEDS-UPDATE? of the screen if the
update finishes properly.

* (screen-force-update): Fix typo that caused the new and current
matrix lines of highlighted text to become EQ?.

* (with-screen-in-update): Eliminate UNWIND-PROTECT since interrupts
are locked while it executes and any errors in the redisplay
indicate a serious problem that makes the UNWIND-PROTECT
uninteresting.

* (with-screen-in-update): Avoid calling SCREEN-UPDATE if the screen's
NEEDS-UPDATE? flag is not set.

* (with-screen-in-update, screen-update): Don't update the cursor
position unless the screen update finishes and the cursor has moved.

* (screen-update): Avoid use of FIX:REMAINDER, which is not open-coded
on the MIPS.

* (screen-update): Change meaning of PREEMPTION-MODULUS so that it
counts the number of updated lines rather than the number of lines.
This avoids unnecessary work when only a few lines need changing,
such as when only the modeline or typein window is being updated.
Because of this change, eliminate DEBUG-PREEMPTION-Y from the SCREEN
structure since it is no longer easy to simulate preemption like
this (and this debugging tool was never needed).

* (update-line-highlight): When comparing old and new lines, don't
consider short matches since it is usually cheaper to ignore them.
This has already been done for the no-highlight case and should have
been done for this case at that time.

* edwin/hlpcom.scm[1.103]:
Add new commands APROPOS-COMMAND and APROPOS-VARIABLE as aliases for
COMMAND-APROPOS and VARIABLE-APROPOS. Add new command APROPOS that
finds any command, variable, or mode that matches the regular
expression (perhaps it should also find ordinary Scheme symbols?).
Change output of apropos commands to more closely match that of Emacs.

* edwin/editor.scm[1.218]:
Change EDIT to set up the EDITOR-ABORT continuation correctly when
reentering the editor after a suspend. Previously it was returning to
the same initial continuation whenever the editor was stopped.

* edwin/curren.scm[1.100]:
Change UPDATE-SCREENS! to scan each screen exactly once. Don't mess
with screen order when doing updates.

* edwin/comint.scm[1.13]:
COMINT-LINE-START was matching COMINT-PROMPT-REGEXP against the
remainder of the buffer when it is only necessary to match against the
remainder of the line. This occasionally caused the primitive
re-match-buffer to signal an anonymous error. This patch
will make the anonymous error extremely unlikely.

The anonymous error indicates a stack-overflow condition that is
difficult to fix properly. However, the primitive can be modified to
use heuristics that will eliminate the error; the cost is that cases
that would have signalled the error will instead return a non-maximal
match or a non-match in cases where it would have returned a maximal
match had the stack been deep enough.

* edwin/bufcom.scm[1.92], edwin/modefs.scm[1.138]:
Define new command no-toggle-read-only and bind it to C-x C-q in the
read-only and read-only-noarg modes.

* edwin/basic.scm[1.124]:
Change EDITOR-FAILURE to post a regular message instead of a temporary
one.

1992-03-13 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/i386.m4[1.20]:
- Stack segment swapping for Zortech C.
- Conditionalize for Microsoft's (and Zortech's) structure returning
convention.

1992-03-11 Chris Hanson <[email protected]>

* runtime/thread.scm[1.3]:
Fix bug in RUN-THREAD that would leave the block-events bit turned on
after delivery of an event.

* compiler/machines/mips/rulfix.scm[1.5]:
Use one-instruction sequence for unary fixnum predicates instead of
more general two-instruction sequence.

* compiler/rtlgen/opncod.scm[4.46]:
Rewrite instances of binary fixnum predicates as equivalent unary
predicate when one arg is zero.

1992-03-11 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/i386.m4[1.19]:
Forgot two underscores.

* microcode/cmpauxmd/i386.m4[1.18]:
Zortech C also requires underscores in data-segment variables.

1992-03-10 Guillermo J. Rozas <[email protected]>

* microcode/cmpgc.h[1.19]:
Add MULTI_CLOSURE_PADDING for Alpha.

1992-03-08 Arthur Gleckler <[email protected]>

* edwin/basic.scm[1.123]:
Make Edwin variable BEEPING-ALLOWED? that is false if Edwin must
never beep.

* edwin/notify.scm[1.8]:
Fix fencepost error in month.

* edwin/notify.scm[1.7]:
Make the notifier able to display the date.

* runtime/runtime.pkg[14.137]:
Export DECODED-TIME/DAY-OF-WEEK to global environment.

1992-03-07 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/i386.m4[1.17]:
More DOS changes.

1992-03-06 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/i386.m4[1.16]:
Fix minor bugs for DOS.

* microcode/cmpauxmd/i386.m4[1.15]:
Forgot one IF387 (for divide).

* microcode/s/Attic/dos.m4[1.2]:
Remove blank lines.

* microcode/cmpauxmd/i386.m4[1.14]:
Switch sense for floating point flag. The default is to include the
floating-point code.

* microcode/cmpauxmd/i386.m4[1.13]:
Conditionalize for floating-point support.

1992-03-05 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/i386.m4[1.12]:
Macroize everything up the wazoo to accommodate differences between Unix
and DOS assemblers.

1992-03-03 Arthur Gleckler <[email protected]>

* 6001/picture.scm[1.2]:
Change GET-VISUAL-INFO because of change to X graphics devices that
makes their operations get devices, not descriptors.

1992-03-03 Chris Hanson <[email protected]>

* compiler/machines/mips/rulrew.scm[1.3]:
Don't generate rules with (MACHINE-CONSTANT 0) as a RHS; use (REGISTER
0) instead.

1992-03-03 Guillermo J. Rozas <[email protected]>

* runtime/site.scm.unix[1.8]:
Add 700 directory defaults so that sources can be found.

1992-03-02 Chris Hanson <[email protected]>

* edwin/process.scm[1.22]:
Synchronous processes that need a specific working directory must pass
that directory as an argument to start-subprocess.

1992-03-02 Guillermo J. Rozas <[email protected]>

* compiler/back/lapgn3.scm[4.7]:
Change use of assoc in constant->label to a use of warning-assoc so
the compiler will issue a warning when coalescing constant objects.

1992-02-29 Henry M. Wu <[email protected]>

* microcode/bchdmp.c[9.61], microcode/bchdrn.h[1.3],
microcode/bchgcc.h[9.44], microcode/bchmmg.c[9.70],
microcode/bchutl.c[1.2]:
Added DOS 386/486 support.

* microcode/ansidecl.h[1.2]:
Allow conditional use of CONST even in ANSI C mode because some
compilers (DOS Zortech) don't declare their libraries correctly
although they are allegedly ANSI compatible.

1992-02-28 Chris Hanson <[email protected]>

* runtime/option.scm[14.13]:
Handle case where "options" directory is missing.

1992-02-28 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/assmd.scm[1.2],
compiler/machines/i386/coerce.scm[1.2],
compiler/machines/i386/compiler.cbf[1.2],
compiler/machines/i386/compiler.pkg[1.6],
compiler/machines/i386/compiler.sf[1.3],
compiler/machines/i386/dassm1.scm[1.4],
compiler/machines/i386/dassm2.scm[1.3],
compiler/machines/i386/dassm3.scm[1.2],
compiler/machines/i386/decls.scm[1.2],
compiler/machines/i386/inerly.scm[1.2],
compiler/machines/i386/insmac.scm[1.10],
compiler/machines/i386/instr1.scm[1.10],
compiler/machines/i386/instr2.scm[1.3],
compiler/machines/i386/instrf.scm[1.10],
compiler/machines/i386/insutl.scm[1.10],
compiler/machines/i386/lapgen.scm[1.19],
compiler/machines/i386/lapopt.scm[1.2],
compiler/machines/i386/machin.scm[1.12],
compiler/machines/i386/make.scm[1.2],
compiler/machines/i386/rgspcm.scm[1.3],
compiler/machines/i386/rules1.scm[1.15],
compiler/machines/i386/rules2.scm[1.5],
compiler/machines/i386/rules3.scm[1.22],
compiler/machines/i386/rules4.scm[1.6],
compiler/machines/i386/rulfix.scm[1.22],
compiler/machines/i386/rulflo.scm[1.17],
compiler/machines/i386/rulrew.scm[1.10]:
Initial release

* microcode/cmpauxmd/i386.m4[1.11]:
Add short-circuit handlers for common arithmetic.

1992-02-27 Arthur Gleckler <[email protected]>

* edwin/loadef.scm[1.15], edwin/print.scm[1.5]:
Move the variables for the PRINT library (which contains the commands
LPR-BUFFER, LPR-REGION, PRINT-BUFFER, and PRINT-REGION) from print.scm
to loadef.scm.

1992-02-27 Chris Hanson <[email protected]>

* runtime/emacs.scm[14.13], runtime/runtime.pkg[14.136]:
Use SET-PORT/THREAD-MUTEX! instead of directly accessing PORT-RTD.

* runtime/port.scm[1.4]:
PORT/COPY must generate a new thread-mutex for the copy; it was
erroneously using the mutex of the original.

* edwin/tterm.scm[1.16]:
Fix bug causing characters to be lost.

* edwin/tparse.scm[1.68]:
Eliminate several fencepost errors in the paragraph and sentence
parsing code.

1992-02-27 Guillermo J. Rozas <[email protected]>

* runtime/uerror.scm[14.32]:
Add case for lexical-unassigned? in the unbound-variable error
handler.

* microcode/lookup.c[9.51]:
Fix bug in unassigned_p_transform.
The system was not complaining about unbound variables.

* microcode/uxsock.c[1.9]:
Add missing sizeof in OS_open_server_socket.

1992-02-27 Henry M. Wu <[email protected]>

* microcode/primutl.c[9.55]:
Declared search_for_primitive properly.

* microcode/ostty.c[1.2], microcode/ostty.h[1.3],
microcode/uxsig.c[1.22]:
Added OS_tty_map_interrupt_char to request interrupt character when
the interrupt is taken by Scheme.

* microcode/Attic/posixtyp.h[1.5]:
Added explicit typedef for off_t; Zortech C for DOS needs it.

* microcode/lookup.h[9.47]:
Changed parameter list of Future_Variable_Splice to please
Zortech 386/486 compiler.

* microcode/flonum.c[9.39]:
Added DOS 386/486 support.
Removed redundant declaration for errno.

* microcode/Attic/config.h[9.69]:
Added DOS 386/486 support.

1992-02-26 Chris Hanson <[email protected]>

* runtime/emacs.scm[14.12], runtime/runtime.pkg[14.135]:
Make sure that thread-mutex of emacs interface port is same as that of
the console port. Otherwise keyboard interrupts aren't correctly
delivered.

1992-02-25 Chris Hanson <[email protected]>

* edwin/tterm.scm[1.15]:
Don't update screens unless going into input wait.

* edwin/make.scm[3.67]:
*** empty log message ***

* runtime/error.scm[14.30], runtime/intrpt.scm[14.10],
runtime/make.scm[14.34], runtime/port.scm[1.3],
runtime/rep.scm[14.24], runtime/runtime.pkg[14.134],
runtime/thread.scm[1.2], runtime/version.scm[14.147]:
* Ports now have a mutex that can be used to implement cooperative
locking of the port. Command loops use this mutex to guarantee that
only one thread at a time uses the port.

* The standard error handler notices when it is about to start a REPL
on a port that is locked by a thread different from the signalling
thread, transforms the error into a derived thread error, and
signals the derived error to the locking thread.

* The procedures KEYBOARD-INTERRUPT-THREAD and
SET-KEYBOARD-INTERRUPT-THREAD! have been eliminated. Keyboard
interrupts are sent to the locking thread of the console I/O port.

* New procedure THREAD-MUTEX-OWNER returns the locking thread of a
mutex, or #F indicating that the mutex is unlocked.

* New procedure WITH-THREAD-MUTEX-LOCKED locks a mutex over a dynamic
extent. If the calling thread already holds the lock, this
procedure does not signal an error and does not unlock the mutex at
the end of the extent.

* edwin/xterm.scm[1.31]:
Don't attempt to update screens unless there is no immediate input.
Doing so is wasted effort since the update will abort almost
immediately. Also don't update screens for PEEK-NO-HANG; let the
caller take care of updating if that is desirable.

* runtime/x11graph.scm[1.15]:
Add operations to change window and icon names, and to iconify
windows.

* edwin/simple.scm[1.43]:
Change SIT-FOR to update screens while waiting. Change SLEEP-FOR to
be the same as SLEEP-CURRENT-THREAD.

1992-02-25 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/lapgen.scm[1.18],
compiler/machines/i386/rules3.scm[1.21],
compiler/machines/i386/rules4.scm[1.5]:
Use assembly language hooks to reduce code size.

1992-02-24 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/i386.h[1.14]:
Add defintion of REGBLOCK_ALLOCATED_BY_INTERFACE, and add the initialization
of many assembly-language hooks.

* microcode/cmpint.c[1.44]:
Add conditionalization on REGBLOCK_ALLOCATED_BY_INTERFACE.

1992-02-20 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/make.scm[1.1.1.2]:
Fix herald string.

* compiler/machines/i386/rulrew.scm[1.9.1.1]:
Back merge with 7.1.3: No object->float rules, instead @address->float
rules.

* compiler/machines/i386/rules1.scm[1.14.1.1]:
7.1.3 compiler needs additional POST-INCREMENT rules.

* microcode/unxutl/Attic/ymkfile[1.39.1.2]:
Add i386 processor type.

* microcode/unxutl/Attic/ymkfile[1.54]:
Add 386 processor definitions.

* microcode/Attic/config.h[9.68]:
Yet another mach fp bug on 386s.

* microcode/missing.c[9.29]:
Fix bug in modf. It was not preserving the sign of the operand,
making floor and ceiling only work for positive values.

* compiler/machines/i386/rulflo.scm[1.16.1.3]:
Fix problem with invalid LAP generated by @ADDRESS->FLOAT rule.

* compiler/machines/i386/make.scm[1.1.1.1]:
Back-merge with 7.1.3

1992-02-19 Chris Hanson <[email protected]>

* edwin/notify.scm[1.6]:
* Time, load, and mail notification are now separately selectable.
Edwin variables notify-show-time, notify-show-load, and
notify-show-mail select the components.

Additionally, the Scheme variable NOTIFIER-ELEMENTS controls what is
displayed and when; you can add new elements to customize the
notifier for your needs.

* The notifier has been changed to use the new inferior thread output
mechanism, which should eliminate the redisplay bugs that people
have been seeing.

* The command M-x run-notifier is used to start the notifier; M-x
kill-notifier kills it. To start the notifier from your init file,
use ((REF-COMMAND RUN-NOTIFIER)).

* The Edwin variable notify-interval is now in units of seconds
instead of milliseconds.

* edwin/editor.scm[1.217], edwin/edwin.pkg[1.78],
edwin/intmod.scm[1.44]:
Add new mechanism for registering inferior threads that do output.
Each inferior thread has its own flag to indicate when it needs to do
output, and a thunk that is to be run in the editor to produce the
output. When the thread wants to do output, it sets the flag; later,
the editor notices that the flag has been set and calls the thunk.

* edwin/simple.scm[1.42]:
Eliminate gratuitous calls from MARK-FLASH and SIT-FOR to
KEYBOARD-PEEK-NO-CHAR. These calls were originally there to eliminate
unnecessary screen update and to make the cursor flash appropriately;
recent changes to KEYBOARD-PEEK-NO-CHAR make this undesirable.

1992-02-19 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rules3.scm[1.20]:
Add missing comma in CONS-MULTICLOSURE rule.

* compiler/machines/i386/rulflo.scm[1.16.1.2]:
Replace remaining instances of OBJECT->FLOAT.

* compiler/machines/i386/rulflo.scm[1.16.1.1]:
Back-merge for 7.1.3 .

* compiler/machines/i386/decls.scm[1.1.1.1]:
Back-merged version to run under 7.1.3.

* microcode/cmpauxmd/i386.m4[1.10], microcode/cmpintmd/i386.h[1.13]:
First working version of compiled runtime system.

* microcode/m/Attic/i386.h[1.2]:
Update to reflect compiler port.

* microcode/Attic/config.h[9.67]:
Conditionalize HAS_FLOOR for i386 under Mach. The library version is
seriously broken.

* compiler/machines/i386/rulflo.scm[1.16]:
Add missing (ST 0) operands.

* compiler/machines/i386/instrf.scm[1.9]:
Add definition of FNLDCW and fix opcode bug in FMULP, etc.

* compiler/machines/i386/rulflo.scm[1.15]:
Eliminate spurious extra call to flonum-unary-operation/general from
rules involving 1.

* compiler/machines/i386/rulflo.scm[1.14]:
Add missing operand to FCOMP instructions.

* compiler/machines/i386/machin.scm[1.11]:
Disable FLONUM-EXP because the F2XM1 instruction is broken on some
hardware.

1992-02-18 Arthur Gleckler <[email protected]>

* edwin/input.scm[1.93]:
Don't record input events in the input history. If an input event
arrives when a keyboard macro is being defined, terminate the keyboard
macro definition before applying the event.

1992-02-18 Brian A. LaMacchia <[email protected]>

* edwin/notify.scm[1.3]:
START-NOTIFIER modified per CPH's request.

1992-02-18 Chris Hanson <[email protected]>

* edwin/notify.scm[1.5]:
Fix pattern in GET-LOAD-AVERAGE-STRING so it works on Sony.
Detect case where thread is dead; don't send event to it then.
Optimize CHECK-FOR-MAIL.

* edwin/ed-ffi.scm[1.23]:
Use correct syntax table for "notify".

* edwin/notify.scm[1.4]:
Reformatting.

* edwin/xterm.scm[1.30]:
Eliminate redundant call to UPDATE-SCREENS!.

* edwin/tterm.scm[1.14]:
Make sure that redisplay occurs whenever any subprocess events occur,
and that it is finished if interrupted.

* edwin/editor.scm[1.216]:
Eliminate additional (and harmful) unbinding of local variables in
RESET-EDITOR.

* edwin/tterm.scm[1.13], edwin/xterm.scm[1.29]:
Make sure that screen updates are finished before going into input
wait. Previously screen updates could be interrupted by new events,
and not resumed before input wait.

1992-02-18 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rulrew.scm[1.9]:
Remove rewriting rules for FLONUM-ASIN and FLONUM-ACOS. They cannot
be done in quite this way now.

* compiler/machines/i386/machin.scm[1.10]:
Remove FLONUM-ASIN and FLONUM-ACOS from open-coded list of primitives.

* compiler/machines/i386/rulflo.scm[1.13]:
Fix currying problem.

* compiler/machines/i386/rulrew.scm[1.8]:
Fix bug in byte-offset-address re-write rule.
It was constructing invalid RTL, and using the wrong offset to boot.

* compiler/machines/i386/rulfix.scm[1.21]:
Fix bug in multiply-fixnum-constant. There is no
(IMUL (R ?foo) (& ?bar))
instruction. It is an assembler macro for
(IMUL (R ?foo) (R ?foo) (& ?bar))

* microcode/fasdump.c[9.53], microcode/fasload.c[9.64],
microcode/gcloop.c[9.39], microcode/purify.c[9.47]:
Changes for 386 port:
Use START/END_OPERATOR_RELOCATION and START/END_CLOSURE_RELOCATION.

* microcode/cmpgc.h[1.18]:
Changes for 386 port:
Conditionally define some of the macros so that a cmpint-md.h file can
override them.
Use FIRST_OPERATOR_LINKAGE_OFFSET for some of the execute cache
macros.

* microcode/cmpint.c[1.43]:
Changes for 386 port:
link_cc_block needed to be changed to set the block relocation
address.

* compiler/machines/spectrum/rules2.scm[4.13]:
Add missing rules (eq-test to machine constant) generated by
rulrew.scm.

* compiler/machines/i386/rules3.scm[1.19]:
Fix bug in apply rule. The procedure was not being passed in the
interface register, and the frame size was passed in the wrong
register.

* compiler/machines/i386/rulfix.scm[1.20]:
Fix open codings of FIXNUM-REMAINDER, FIXNUM-LSH, and unary fixnum
predicates.

* compiler/machines/i386/instr1.scm[1.9]:
Fix JS opcode.

* compiler/machines/i386/rules3.scm[1.18]:
Fix bug in transmogrifly. It was inserting too many nulls for the
relocation pointer.

* compiler/machines/i386/rules1.scm[1.14]:
Fix bug in rule for
(CONS-POINTER (MACHINE-CONSTANT (? type)) (REGISTER (? datum)))

* compiler/machines/i386/instr1.scm[1.8],
compiler/machines/i386/instrf.scm[1.8]:
Add package comment.

* compiler/machines/i386/instr2.scm[1.2]:
Fix bad opcode in a PUSH rule.

* microcode/cmpintmd/i386.h[1.12]:
Split EXTRACT_EXECUTE_CACHE_ADDRESS from EXTRACT_OPERATOR_LINKAGE_ADDRESS.
The i386 does not need relocation for EXTRACT_EXECUTE_CACHE_ADDRESS,
so it is safer.

1992-02-18 Mark Friedman <[email protected]>

* edwin/evlcom.scm[1.35]:
Added the ability to reset SCHEME-ENVIRONMENT (and its default value)
to 'DEFAULT via SET-ENVIRONMENT and SET-DEFAULT-ENVIRONMENT.

1992-02-18 Henry M. Wu <[email protected]>

* microcode/option.c[1.14]:
Macroized sub-directory delimiter to make DOS win.
Added default directories for DOS.

* microcode/option.h[1.8], microcode/option.h[1.7]:
Macroized sub-directory delimiter to make DOS win.

1992-02-17 Brian A. LaMacchia <[email protected]>

* edwin/notify.scm[1.2]:
If you used mail-and-load-notify, on rmail-get-new-mail your entire
notify string got set to "". This has been fixed.

1992-02-17 Chris Hanson <[email protected]>

* edwin/basic.scm[1.122], edwin/comred.scm[1.92],
edwin/curren.scm[1.99], edwin/edwin.pkg[1.77], edwin/input.scm[1.92],
edwin/iserch.scm[1.17], edwin/kmacro.scm[1.37],
edwin/prompt.scm[1.153], edwin/simple.scm[1.41],
edwin/tterm.scm[1.12], edwin/xterm.scm[1.28]:
Various window-manager events, such as focus selection and closing of
X windows, are passed back from KEYBOARD-READ as special events to be
executed by the caller. Previously, these were handled by the X
terminal abstraction. This allows the caller to recognize that the
user is doing something unusual, and to behave accordingly. For
example, incremental search treats such events exactly like other
complicated editor commands: the search is terminated before the
command is executed.

* edwin/editor.scm[1.215], edwin/intmod.scm[1.43]:
Define new variable EDITOR-THREAD-ROOT-CONTINUATION, which is the
continuation for use when spawning threads in the editor. Also change
the environment and syntax-table that the initial *repl* uses to be
inherited from the REPL that Edwin is invoked from.

1992-02-17 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rulfix.scm[1.19]:
Fix uses of rtl-target:=machine-register!

* compiler/machines/i386/machin.scm[1.9]:
Fix defn. of machine-register-value-class to agree with
number-of-machine-registers.

* compiler/machines/i386/rules1.scm[1.13]:
- Add another rule that exapands into PUSH.W &??
- Fix cons-pointer rule.

* compiler/machines/i386/rulrew.scm[1.7]:
- Change acos and asin rewrites to occur before cse.
- Add a byte-offset-address rule to make use of optimized lapgen rule.

* compiler/machines/i386/compiler.pkg[1.5]:
Export add-pre-cse-rewriting-rule! from (compiler rtl-optimizer rtl-rewriting)
because rulrew.scm needs it.

* compiler/machines/i386/rules3.scm[1.17]:
Fix various incorrect lap instructions.

* compiler/machines/i386/lapgen.scm[1.17]:
Change object->machine-register! so that it can use a
previously-cached pc value even if it is going to clobber the register
that contains it.

* compiler/rtlopt/rerite.scm[1.2]:
Define add-pre-cse-rewriting-rule! so that machines/??/rulrew.scm can
use it.

* compiler/base/pmlook.scm[1.8]:
pattern-lookup was not taking care of repeated pattern variables
correctly. It was looking for the pattern in the list of values!
Patched for now to assume that sharing is rare, and thus extra
work is done then.

To do handle this Correctly, pattern-variables should be modified to
replace each occurrence of a pattern variable with a pattern-variable
+ position, where position is false if this is the first occurrence of
the pattern variable or the index for list-ref of the previous value
if not. This avoids the runtime memq, etc.

* compiler/rtlopt/rcseht.scm[4.12]:
Give preference to registers over other expressions, even if they have
the same cost. The RTL combiner and rewriting passes can always
make for cheaper expressions if necessary.

* compiler/machines/i386/rules3.scm[1.16]:
Fix primitive invocation to use code:compiler-primitive-apply instead
of incorrectly using code:compiler-apply.

1992-02-16 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/i386.h[1.11]:
Fix START_CLOSURE_RELOCATION.

* compiler/machines/i386/rulfix.scm[1.18]:
Revert register-copy-if-available, and use it correctly.

* compiler/machines/i386/lapgen.scm[1.16],
compiler/machines/i386/rules3.scm[1.15],
compiler/machines/i386/rules4.scm[1.4],
microcode/cmpauxmd/i386.m4[1.9], microcode/cmpintmd/i386.h[1.10]:
Remove far calls and jumps. They are not necessary (at least under
Mach).

* compiler/machines/i386/insutl.scm[1.9]:
SIB bytes were all flipped (little vs. big endian).

* microcode/cmpauxmd/i386.m4[1.8], microcode/cmpintmd/i386.h[1.9]:
Swap order of code_segment and hook offset in the hook layout in
memory. I believe this corresponds to the actual format.

1992-02-15 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/i386.m4[1.7]:
Fix assembly problems.

* compiler/machines/i386/rules1.scm[1.12]:
Fix paren problem.

* compiler/machines/i386/lapgen.scm[1.15]:
Add byte-unsigned-offset-reference.

* compiler/machines/i386/rules1.scm[1.11],
compiler/machines/i386/rulfix.scm[1.17]:
Teach the compiler how to use LEA to tag objects and do a three
operand ADD.

* compiler/machines/i386/rules3.scm[1.14]:
Bad call to target-register-reference.

* compiler/machines/i386/lapgen.scm[1.14],
compiler/machines/i386/rules3.scm[1.13]:
Fix addressing mode bug.

* compiler/machines/i386/lapgen.scm[1.13],
compiler/machines/i386/rules3.scm[1.12],
compiler/machines/i386/rules4.scm[1.3],
microcode/cmpauxmd/i386.m4[1.6], microcode/cmpintmd/i386.h[1.8]:
Jumps into compiled scheme code and out must use far jmp/call
instructions, because the code segment is not necessarily the same as
the data segment. We still assume that the stack segment and the data
segment are the same.

* compiler/machines/i386/lapgen.scm[1.12]:
Change invoke-interface and invoke-interface/call to use
MOVB instead of MOVW.

1992-02-14 Arthur Gleckler <[email protected]>

* edwin/decls.scm[1.32], edwin/ed-ffi.scm[1.22], edwin/edwin.ldr[1.24],
edwin/modlin.scm[1.13]:
Add mail and load average notification.

* edwin/edwin.pkg[1.76.1.1]:
Adding mail and load average notification.

1992-02-14 Guillermo J. Rozas <[email protected]>

* microcode/uxtrap.h[1.12]:
Add i386 (Mach) support.

* microcode/cmpauxmd/i386.m4[1.5]:
interrupt_dlink renamed to asm_interrupt_dlink.

* microcode/cmpauxmd/i386.m4[1.4]:
Remove GCC test. It seems not to work on BSD at all anyway.

* microcode/cmpauxmd/i386.m4[1.3]:
Add test for GCC and accomodate BSD's eval that only takes one arg.

* microcode/cmpauxmd/i386.m4[1.2]:
Write most entry points.

* compiler/documentation/test-c.c[1.3]:
Add a way to find out how to invoke a procedure from a table of
procedures.

* compiler/documentation/test-c.c[1.2]:
Add way to find out how external references are done.

1992-02-13 Chris Hanson <[email protected]>

* edwin/edtstr.scm[1.21]:
Fix typo in last change.

* edwin/winout.scm[1.8]:
Don't do random call to EDITOR-CHAR-READY?.

* edwin/edtstr.scm[1.20]:
Rename editor input procedures:

old name new name
------------------ -------------------
EDITOR-CHAR-READY? EDITOR-PEEK-NO-HANG
EDITOR-PEEK-CHAR EDITOR-PEEK
EDITOR-READ-CHAR EDITOR-READ

* runtime/string.scm[14.4]:
Work around stupid bug in SF.

* runtime/dbgutl.scm[14.16]:
Fix typo that caused "special form" to appear on console when the
debugger was run under Edwin.

* runtime/unxpth.scm[14.9]:
Fix DIRECTORY-PATHNAME-AS-FILE so it accepts "/" as a valid argument.

* edwin/filcom.scm[1.165]:
Fix PATHNAME->BUFFER-NAME so it handles "/" reasonably.

1992-02-13 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/compiler.pkg[1.4],
compiler/machines/i386/compiler.pkg[1.3],
compiler/machines/i386/compiler.pkg[1.2],
compiler/machines/i386/compiler.sf[1.2],
compiler/machines/i386/dassm1.scm[1.3],
compiler/machines/i386/dassm1.scm[1.2],
compiler/machines/i386/dassm2.scm[1.2],
compiler/machines/i386/insmac.scm[1.9],
compiler/machines/i386/insmac.scm[1.8],
compiler/machines/i386/insmac.scm[1.7],
compiler/machines/i386/insmac.scm[1.6],
compiler/machines/i386/insmac.scm[1.5],
compiler/machines/i386/insmac.scm[1.4],
compiler/machines/i386/insmac.scm[1.3],
compiler/machines/i386/instr1.scm[1.7],
compiler/machines/i386/instr1.scm[1.6],
compiler/machines/i386/instr1.scm[1.5],
compiler/machines/i386/instrf.scm[1.7],
compiler/machines/i386/instrf.scm[1.6],
compiler/machines/i386/instrf.scm[1.5],
compiler/machines/i386/instrf.scm[1.4],
compiler/machines/i386/instrf.scm[1.3],
compiler/machines/i386/insutl.scm[1.8],
compiler/machines/i386/insutl.scm[1.7],
compiler/machines/i386/insutl.scm[1.6],
compiler/machines/i386/insutl.scm[1.5],
compiler/machines/i386/lapgen.scm[1.11],
compiler/machines/i386/lapgen.scm[1.10],
compiler/machines/i386/lapgen.scm[1.9],
compiler/machines/i386/lapgen.scm[1.8],
compiler/machines/i386/machin.scm[1.8],
compiler/machines/i386/machin.scm[1.7],
compiler/machines/i386/rgspcm.scm[1.2],
compiler/machines/i386/rules1.scm[1.10],
compiler/machines/i386/rules1.scm[1.9],
compiler/machines/i386/rules1.scm[1.8],
compiler/machines/i386/rules2.scm[1.4],
compiler/machines/i386/rules2.scm[1.3],
compiler/machines/i386/rules3.scm[1.11],
compiler/machines/i386/rules3.scm[1.10],
compiler/machines/i386/rules3.scm[1.9],
compiler/machines/i386/rulfix.scm[1.16],
compiler/machines/i386/rulfix.scm[1.15],
compiler/machines/i386/rulfix.scm[1.14],
compiler/machines/i386/rulflo.scm[1.12],
compiler/machines/i386/rulflo.scm[1.11],
compiler/machines/i386/rulrew.scm[1.6],
compiler/machines/i386/rulrew.scm[1.5],
compiler/machines/i386/rulrew.scm[1.4],
compiler/machines/i386/rulrew.scm[1.3]:
More changes.

1992-02-12 Arthur Gleckler <[email protected]>

* edwin/edwin.pkg[1.76], edwin/rmail.scm[1.16]:
Add hook RMAIL-NEW-MAIL-HOOK. It is run when RMAIL reads new mail.

1992-02-12 Chris Hanson <[email protected]>

* edwin/curren.scm[1.98]:
Change OTHER-WINDOW to consider windows on other visible screens as
possible alternatives. Fix WINDOW-LIVE? to work correctly for windows
in screens that aren't selected.

* edwin/wincom.scm[1.111]:
Variable USE-MULTIPLE-SCREENS now tells "other window" commands not to
create screens unless it is true; however if multiple screens already
exist, the windows in them are considered for selection along with
windows on the current screen. Previously, if USE-MULTIPLE-SCREENS
was false, other screens were never considered.

* runtime/string.scm[14.3]:
Fix random bugs in SUBSTRING-UPPER-CASE? and SUBSTRING-LOWER-CASE?,
and tune up a few things to take advantage of compiler.

* microcode/uxctty.c[1.10]:
Fix typo.

* microcode/uxctty.c[1.9]:
Preserve fcntl flags for stdio when starting and stopping Scheme.
Also handle EINTR in I/O system calls.

* edwin/tterm.scm[1.11]:
Make sure terminal state is properly restored on reentry.

* edwin/process.scm[1.21]:
Use new MAKE-SUBPROCESS primitive argument to set working directory of
subprocess.

1992-02-12 Guillermo J. Rozas <[email protected]>

* compiler/documentation/cmpint.txt[1.11]:
Add description of TRAMPOLINE_ENTRY_POINT.
Update description of TRAMPOLINE_BLOCK_TO_ENTRY.
Fix description of ENTRY_PREFIX_LENGTH.

* microcode/cmpint.c[1.42]:
Use definition of TRAMPOLINE_ENTRY_POINT (instead of
TRAMPOLINE_BLOCK_TO_ENTRY) thereby removing the alignment restrictions
on make_trampoline.

* microcode/cmpintmd/hppa.h[1.32], microcode/cmpintmd/i386.h[1.7],
microcode/cmpintmd/mc68k.h[1.30], microcode/cmpintmd/mips.h[1.11]:
Add definition of TRAMPOLINE_ENTRY_POINT which removes alignment
restrictions on make_trampoline.

Add full table of compiler ports.

* microcode/cmpintmd/vax.h[1.5]:
Add full table of compiler ports.

* microcode/cmpintmd/vax.h[1.4]:
Add definition of TRAMPOLINE_ENTRY_POINT which removes alignment
restrictions on make_trampoline.

1992-02-11 Brian A. LaMacchia <[email protected]>

* edwin/curren.scm[1.97]:
Added global-window-modeline-event!

1992-02-11 Chris Hanson <[email protected]>

* microcode/osproc.h[1.6], microcode/prosproc.c[1.11],
microcode/uxproc.c[1.13], microcode/uxproc.c[1.12]:
Change MAKE-SUBPROCESS primitive to accept a working directory
argument for setting the working directory of the subprocess.

* microcode/cmpauxmd/mc68k.m4[1.22]:
Eliminate interrupt window in shortcircuit apply.

* edwin/process.scm[1.20]:
Delete synchronous process after use.

* edwin/process.scm[1.19]:
Close SUBPROCESS-INPUT-CHANNEL when done with it.

* microcode/x11graph.c[1.22], microcode/x11term.c[1.19]:
Provide default resources for X windows.

* edwin/curren.scm[1.96], edwin/wincom.scm[1.110],
edwin/xterm.scm[1.27]:
Change screen, window, and buffer selection to make it hard to select
something on a screen that isn't visible.

* microcode/x11.h[1.13], microcode/x11base.c[1.36],
microcode/x11graph.c[1.21], microcode/x11term.c[1.18]:
Primitives to set internal border width and font now update the window
manager's "normal" hints, so that subsequent resizing works properly.

1992-02-11 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/lapgen.scm[1.7],
compiler/machines/i386/rules1.scm[1.7],
compiler/machines/i386/rules3.scm[1.8],
compiler/machines/i386/rulflo.scm[1.10]:
@RO -> @RO.B or @RO.W

* compiler/machines/i386/insutl.scm[1.4],
compiler/machines/i386/insutl.scm[1.3]:
More changes.

1992-02-11 Henry M. Wu <[email protected]>

* microcode/bintopsb.c[9.50], microcode/ppband.c[9.43],
microcode/psbmap.h[9.35], microcode/psbtobin.c[9.47]:
Make setup_io take mode arguments to prevent text translation on
non-Unix systems.

1992-02-10 Brian A. LaMacchia <[email protected]>

* edwin/rmail.scm[1.15]:
Set region to include only message being viewed.

1992-02-10 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.152]:
Change BUFFER-VISIBLE? to mean that buffer is shown in a window that
is visible.

* microcode/x11base.c[1.35]:
Fix typo.

* microcode/x11.h[1.12], microcode/x11base.c[1.34],
microcode/x11graph.c[1.20], microcode/x11term.c[1.17]:
Use resource arguments to window creation primitives for looking up
defaults as well as for setting the class hint.

* runtime/fileio.scm[1.3]:
OPEN-OUTPUT-FILE was missing MERGE-PATHNAMES.

* edwin/editor.scm[1.214]:
Implement new procedure QUIT-SCHEME.

* edwin/basic.scm[1.121]:
Use new procedure QUIT-SCHEME instead of QUIT.

* edwin/basic.scm[1.120]:
Use new procedure EXIT-SCHEME instead of %EXIT.

* edwin/editor.scm[1.213]:
Add new procedure EXIT-SCHEME to first exit the editor and then kill
Scheme. This is a workaround for a problem that occurs when using
termcap and calling %EXIT from within the editor: the terminal
settings don't seem to be getting properly restored.

1992-02-10 Guillermo J. Rozas <[email protected]>

* microcode/tparam.c[1.3], microcode/version.h[11.109]:
Some changes for the alpha.

* microcode/bchdmp.c[9.60], microcode/bchdrn.c[1.3],
microcode/bchgcc.h[9.43], microcode/boot.c[9.72],
microcode/default.h[9.38], microcode/findprim.c[9.46],
microcode/uxio.c[1.20], microcode/uxsock.c[1.8],
microcode/uxtty.c[1.8]:
const => CONST

* microcode/ux.h[1.30.1.1]:
Remove ... from open declaration. Some system include files don't
have prototypes, and the compilers get confused when they see two
declarations, one without prototypes and the other with ... .
const => CONST

* microcode/bchmmg.c[9.69], microcode/uxio.c[1.19]:
Move internal EXFUNs to top level. The alpha compiler gets confused.

* microcode/bignum.h[9.27]:
Make bignum.h use ansidecl.h .

* microcode/dstack.h[1.5], microcode/error.c[1.2]:
Remove named parameters from prototypes in structure fields. The
Alpha compiler does not like them.

* microcode/object.h[9.37]:
Previous definition of MAKE_OBJECT only worked if
(sizeof (int)) == (sizeof (long)) .

* microcode/Attic/config.h[9.66]:
Fix alpha definition. ldexp is broken for now.

* microcode/unxutl/Attic/ymkfile[1.53]:
Add dependencies from Psbtobin and Bintopsb to missing.o

1992-02-09 Chris Hanson <[email protected]>

* microcode/x11base.c[1.33]:
Fix several type-o's.

* microcode/uxfs.c[1.7]:
Fix type-o.

1992-02-09 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/instrf.scm[1.2]:
Change the name of the file.

* compiler/machines/i386/instr1.scm[1.4]:
Split into two files.

* compiler/machines/i386/insmac.scm[1.2],
compiler/machines/i386/instr1.scm[1.3],
compiler/machines/i386/instr1.scm[1.2],
compiler/machines/i386/insutl.scm[1.2]:
More changes.

1992-02-08 Chris Hanson <[email protected]>

* edwin/basic.scm[1.119], edwin/curren.scm[1.95],
edwin/decls.scm[1.31], edwin/ed-ffi.scm[1.21],
edwin/editor.scm[1.212], edwin/edwin.ldr[1.23],
edwin/edwin.pkg[1.75], edwin/intmod.scm[1.42], edwin/make.scm[3.66],
edwin/screen.scm[1.96], edwin/unix.scm[1.22], edwin/xterm.scm[1.26]:
This version of Edwin requires microcode 11.108 and runtime 14.146.

* Multi-thread code from previous version has been moved to the
runtime system.

* Use new reentrant directory-reading support from runtime system.

* New control variables in "basic.scm" give finer control over the
exit options for Edwin. The 6.001 student system should take
advantage of these.

* Screens now have information indicating whether they are visible;
commands that use screens avoid using invisible ones where possible.
Invisible screens are never updated; they are fully updated when
they are made visible again.

* Participate in WM_DELETE_WINDOW protocol; when running under a
cooperating window manager (e.g. mwm), commands to delete Edwin's
screens are now intercepted and processed appropriately. When there
are multiple screens, the given screen is deleted; if there is just
one screen, Edwin exits exactly as if C-x c had been typed.

* Participate in WM_TAKE_FOCUS protocol; Edwin is a "locally active"
client, meaning that it takes responsibility for managing keyboard
focus among its own windows. This means that switching the keyboard
focus to a different Edwin window also informs the window manager
that the focus has been changed.

* Edwin now tracks MapNotify and UnmapNotify events, and uses them to
set the visibility information of screens. This means that it is
much harder to switch the focus to an iconified screen.

* sf/gconst.scm[4.13], sf/make.scm[4.23]:
Don't integrate references to dynamic-state primitives.

* runtime/Attic/syntax.scm[14.17], runtime/conpar.scm[14.25],
runtime/contin.scm[14.6], runtime/ed-ffi.scm[1.4],
runtime/emacs.scm[14.11], runtime/framex.scm[14.16],
runtime/global.scm[14.35], runtime/intrpt.scm[14.9],
runtime/io.scm[14.29], runtime/make.scm[14.33],
runtime/rep.scm[14.23], runtime/runtime.pkg[14.133],
runtime/savres.scm[14.24], runtime/uerror.scm[14.31],
runtime/unsyn.scm[14.12], runtime/unxdir.scm[14.9],
runtime/version.scm[14.146], runtime/wind.scm[14.4],
runtime/wrkdir.scm[14.6]:
This version of the runtime system requires the following
corresponding versions:

Microcode 11.108
SF 4.23
Edwin 3.66

Implement multiple control threads.

* Use new reentrant directory-reading primitives.

* Reimplement DYNAMIC-WIND and FLUID-LET. The dynamic state is split
into a global part, which FLUID-LET bindings, and a local part,
which DYNAMIC-WIND binds. The local part is different for each
thread, and the global part is shared. The new dynamic state code
is all written in Scheme, except for the primitive
WITH-STACK-MARKER, which is used to inform the continuation parser
about the state changes.

* The continuation parser has been modified to hide the stack frames
made by CALL-WITH-CURRENT-CONTINUATION from the debugger.

* The variable TIMER-INTERRUPT has been removed. Chances are, you
don't need this now, and this will prevent people from running
programs that will screw thread preemption.

* Keyboard interrupts are delivered to a specific thread, which can be
accessed with KEYBOARD-INTERRUPT-THREAD and modified by
SET-KEYBOARD-INTERRUPT-THREAD!.

* runtime/dbgutl.scm[14.15]:
WRITE-DBG-UPCASE-NAME: Don't upcase things that aren't symbols or
strings.

* microcode/hooks.c[9.44], microcode/interp.c[9.66],
microcode/osfs.h[1.4], microcode/prosfs.c[1.7],
microcode/returns.h[9.40], microcode/utabmd.scm[9.61],
microcode/uxfs.c[1.6], microcode/version.h[11.108],
microcode/x11.h[1.11], microcode/x11base.c[1.32],
microcode/x11graph.c[1.19], microcode/x11term.c[1.16]:
This microcode will not run versions of Edwin prior to 3.66.

* Add new primitive WITH-STACK-MARKER that marks the stack for the
benefit of the continuation parser.

* Implement new set of directory-reading primitives that are
reentrant.

Changes to X interface:

* Add support for WM_DELETE_WINDOW and WM_TAKE_FOCUS window manager
protocols.

* Add support for Scheme to receive MapNotify and UnmapNotify events.

* Window creation primitives allow third argument to be (NAME . CLASS)
meaning set the class hint to those strings.

* Primitive X-WINDOW-SET-CLASS-HINT now takes three arguments instead of
four; the first argument was redundant. The last two arguments have
been reversed.

* New primitive X-WINDOW-SET-INPUT-HINT for use together with
WM_TAKE_FOCUS protocol.

* New primitives X-WINDOW-SET-TRANSIENT-FOR-HINT, X-WINDOW-ICONIFY,
and X-WINDOW-WITHDRAW.

1992-02-08 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/lapgen.scm[1.6],
compiler/machines/i386/rulfix.scm[1.13],
compiler/machines/i386/rulfix.scm[1.12],
compiler/machines/i386/rulflo.scm[1.9]:
More changes.

1992-02-07 Guillermo J. Rozas <[email protected]>

* runtime/gc.scm[14.8], runtime/make.scm[14.32],
runtime/version.scm[14.145]:
Make gc-abort-test act differently during the boot load, rather than
fail because of an unassigned variable.

* compiler/machines/spectrum/lapgen.scm[4.37],
compiler/machines/spectrum/rules3.scm[4.31],
microcode/cmpauxmd/hppa.m4[1.20]:
Add shortcircuit_apply hooks.

1992-02-06 Arthur Gleckler <[email protected]>

* edwin/lincom.scm[1.120]:
Bug fix: PAGE-INTERIOR-REGION also broke when (GROUP-END? POINT) was
true and there was no PAGE-DELIMITER on the same line.

* edwin/lincom.scm[1.119]:
Bug fix: PAGE-INTERIOR-REGION broke on the last page (i.e., beyond the
last PAGE-DELIMITER on the page).

1992-02-06 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/lapgen.scm[1.5]:
More changes.

1992-02-05 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/lapgen.scm[1.4],
compiler/machines/i386/lapgen.scm[1.3],
compiler/machines/i386/machin.scm[1.6],
compiler/machines/i386/machin.scm[1.5],
compiler/machines/i386/rules3.scm[1.7],
compiler/machines/i386/rules3.scm[1.6],
compiler/machines/i386/rules4.scm[1.2],
compiler/machines/i386/rulfix.scm[1.11],
compiler/machines/i386/rulflo.scm[1.8],
compiler/machines/i386/rulflo.scm[1.7],
compiler/machines/i386/rulrew.scm[1.2],
microcode/cmpintmd/i386.h[1.6], microcode/cmpintmd/i386.h[1.5]:
More changes.

* microcode/unxutl/Attic/ymkfile[1.52]:
Add dependencies from the .o files to the .s files to the .m4 files
and xmakefile for systems with a compiler.

* microcode/cmpintmd/hppa.h[1.31]:
Rename assembly language entry points when !C_FUNC_PTR_IS_CLOSURE.

* microcode/m/Attic/hp9k800.h[1.7]:
Conditionalize for GCC.

* microcode/cmpauxmd/hppa.m4[1.19]:
Conditionalize for GCC's structure return convention:
On the HP-PA, GCC passes the address of the structure in r28 (ret0),
and the called procedure bashes the structure allocated by the caller.
What a lose! GCC does this right on the 68k!

1992-02-04 Arthur Gleckler <[email protected]>

* runtime/x11graph.scm[1.14]:
Fix GC bug in OPERATION/CLOSE in X graphics type.

1992-02-04 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.132], runtime/starbase.scm[1.9]:
Fix typo.

* microcode/prosio.c[1.7], microcode/uxio.c[1.18],
microcode/uxselect.h[1.2], microcode/version.h[11.107],
microcode/x11base.c[1.31]:
This microcode cannot be used with Edwin versions prior to 3.65.

The implementation of UX_select has been changed to return to the
caller when a Scheme interrupt needs servicing, rather than just
servicing the interrupt and going back into the select. This gives
Scheme code a chance to run and do something useful.

In addition, the primitives CHANNEL-SELECT-THEN-READ and
X-DISPLAY-PROCESS-EVENTS have been changed to return different event
codes for the "other output" and "process status change" events. This
allows the event-handling code to go directly to the handler, rather
than trying to figure out which one occurred.

* edwin/artdebug.scm[1.17], edwin/basic.scm[1.118],
edwin/bufcom.scm[1.91], edwin/buffer.scm[1.151],
edwin/comman.scm[1.68], edwin/comred.scm[1.91],
edwin/curren.scm[1.94], edwin/decls.scm[1.30],
edwin/ed-ffi.scm[1.20], edwin/editor.scm[1.211],
edwin/edtstr.scm[1.19], edwin/edwin.ldr[1.22], edwin/edwin.pkg[1.74],
edwin/evlcom.scm[1.34], edwin/fileio.scm[1.106],
edwin/input.scm[1.91], edwin/intmod.scm[1.41],
edwin/iserch.scm[1.16], edwin/kmacro.scm[1.36], edwin/make.scm[3.65],
edwin/process.scm[1.18], edwin/prompt.scm[1.152],
edwin/regexp.scm[1.61], edwin/regops.scm[1.85],
edwin/rmail.scm[1.14], edwin/screen.scm[1.95], edwin/shell.scm[1.9],
edwin/struct.scm[1.80], edwin/tterm.scm[1.10], edwin/undo.scm[1.49],
edwin/utils.scm[1.27], edwin/wincom.scm[1.109],
edwin/xterm.scm[1.25]:
This release of Edwin requires microcode 11.107 or later.

Implement new multi-threading system or Edwin. Inferior REPL buffers
now evaluate in parallel with the editor.

One widespread effect of this change is that calls to the procedures
CALL-WITH-CURRENT-CONTINUATION and DYNAMIC-WIND have been replaced by
CALL-WITH-PROTECTED-CONTINUATION and UNWIND-PROTECT, respectively.
This is needed because the dynamic state space cannot be used for
doing unwind protects -- it is constantly being changed as threads are
switched. If someday the multi-thread code is integrated with the
runtime system, this will be fixed at a lower level, and these new
procedures can become aliases for the old.

Other changes:

* A subtle bug in the command reader was causing undo boundaries to be
inserted too often while text was being entered. This has been
fixed, and now undo boundaries are generated every 20 characters or
so.

* The undo mechanism has been generalized to allow undo tracking to be
happening in parallel in several buffers at once. Now undo tracking
only interacts with the undo command when they are in the same
buffer. Additional undo boundaries have been added at buffer-switch
points.

* RESET-EDITOR now restores the default bindings of any local
variables that are bound when it is called. Previously this was not
done, resulting in the default bindings being lost after a reset.

* Tuning of the subprocess output code should be noticeable.

* edwin/fill.scm[1.53], edwin/texcom.scm[1.35], edwin/tparse.scm[1.67]:
Complete rewrite of the paragraph parsing code. The handling of the
fill-prefix is no longer like the Emacs implementation, but rather
matches the Emacs manual: when the fill-prefix is in effect, only
lines containing the prefix are considered to be part of a paragraph
-- all other lines are ignored.

1992-02-04 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/hppa.h[1.30]:
Fix conditionalization of C_FUNC_PTR_IS_CLOSURE for GCC.

* microcode/cmpintmd/hppa.h[1.29]:
Add cast in ASM_RESET_HOOK to eliminate gcc warning.

* microcode/cmpintmd/hppa.h[1.28]:
Conditionalize C_FUNC_PTR_IS_CLOSURE better.

* microcode/unxutl/Attic/y300.lcl[1.20]:
Install kitscheme as well as scm6003.

* microcode/xdebug.c[9.29]:
protoize headers.

* microcode/obstack.h[1.6]:
Upgrade obstack.temp to long, because int's may not be large enought
to hold some of the stuff stored in temp.

* microcode/debug.c[9.43], microcode/osscheme.c[1.6],
microcode/uxsig.c[1.21]:
The stack trace interrupt now allows dumping the stack trace to a
file.

* compiler/machines/i386/machin.scm[1.4],
compiler/machines/i386/rulfix.scm[1.10],
compiler/machines/i386/rulflo.scm[1.6]:
More changes.

* microcode/osscheme.h[1.6]:
Include <stdio.h> because of FILE *.

* microcode/version.h[11.106]:
Changes to accomodate machines where (sizeof (int)) < (sizeof (long)).
Stack traces can now be sent to a file instead of the console.

* microcode/uxsig.c[1.20]:
Fix a declaration problem.

* microcode/uxsig.c[1.19]:
debug_back_trace now takes a FILE * object.
interactive_back_trace reads a file name and uses it, the console if
none provided.

* microcode/osscheme.c[1.5], microcode/osscheme.h[1.5]:
debug_back_trace now takes a FILE * object.

1992-02-03 Guillermo J. Rozas <[email protected]>

* microcode/unxutl/Attic/ymkfile[1.51]:
Add dependency for uxsock.o .
Add RUN macro.

* microcode/uxterm.c[1.18]:
Change return types of speed procedures.

* microcode/ux.c[1.10]:
Cast return value of UX_PC_VDISABLE.

* microcode/pruxsock.c[1.5], microcode/uxsock.c[1.7],
microcode/uxsock.h[1.3]:
Change arity of OS_open_server_socket.

* microcode/osterm.h[1.8]:
Change return types.

* microcode/hooks.c[9.43]:
Change switch to if in Prim_force because of compiler bug.

* microcode/debug.c[9.42], microcode/dump.c[9.35],
microcode/gccode.h[9.45], microcode/stack.h[9.30],
microcode/utils.c[9.52], microcode/xdebug.c[9.28]:
Fix calls printf to use %ld or %lx instead of %d and %x.

* microcode/bkpt.c[9.27]:
Fix declaration bug, and pass parameter appropriately.

* microcode/Attic/config.h[9.65]:
Add Alpha conditionalization.

* microcode/psbtobin.c[9.46]:
CPP-time uses of false and true now use FALSE and TRUE.
MAX_CHAR -> UCHAR_MAX from "limits.h"

* microcode/bchdmp.c[9.59], microcode/bchmmg.c[9.68],
microcode/bintopsb.c[9.49], microcode/bkpt.c[9.26],
microcode/extern.h[9.44], microcode/interp.c[9.65],
microcode/lookup.c[9.50], microcode/mul.c[9.32],
microcode/primutl.c[9.54], microcode/purutl.c[9.43],
microcode/storage.c[9.48], microcode/uxtrap.c[1.17]:
CPP-time uses of false and true now use FALSE and TRUE.

* compiler/machines/i386/rulflo.scm[1.5],
compiler/machines/i386/rulflo.scm[1.4]:
More changes.

1992-02-02 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rulflo.scm[1.3]:
More changes.

1992-02-01 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rulflo.scm[1.2]:
More changes.

1992-01-31 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rules3.scm[1.5],
compiler/machines/i386/rulfix.scm[1.9],
microcode/cmpintmd/i386.h[1.4]:
More changes.

1992-01-30 Arthur Gleckler <[email protected]>

* runtime/starbase.scm[1.7]:
Fix bug in last change.

* runtime/runtime.pkg[14.131], runtime/starbase.scm[1.6],
runtime/version.scm[14.144], runtime/x11graph.scm[1.13]:
Change graphics operations to receive the device, not just the
descriptor, of the graphics object on which they are operating.

1992-01-30 Guillermo J. Rozas <[email protected]>

* runtime/starbase.scm[1.8]:
Eliminate bogus fossil.

* runtime/arith.scm[1.23]:
Fix typo.

* compiler/machines/i386/lapgen.scm[1.2],
compiler/machines/i386/machin.scm[1.3],
compiler/machines/i386/rules1.scm[1.6],
compiler/machines/i386/rules1.scm[1.5],
compiler/machines/i386/rules2.scm[1.2],
compiler/machines/i386/rules3.scm[1.4],
compiler/machines/i386/rules3.scm[1.3],
compiler/machines/i386/rulfix.scm[1.8],
microcode/cmpintmd/i386.h[1.3]:
More changes.

1992-01-29 Guillermo J. Rozas <[email protected]>

* runtime/arith.scm[1.22]:
Improve the bignum printer.

* compiler/machines/i386/rules3.scm[1.2]:
More changes.

1992-01-28 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rules1.scm[1.4],
compiler/machines/i386/rulfix.scm[1.7]:
More changes.

1992-01-27 Chris Hanson <[email protected]>

* edwin/process.scm[1.17]:
Don't depend on read to return a full buffer from a pipe.

1992-01-27 Guillermo J. Rozas <[email protected]>

* microcode/bchmmg.c[9.67]:
Fix warnings: passing const parameters to free.

* compiler/machines/i386/rulfix.scm[1.6],
compiler/machines/i386/rulfix.scm[1.5]:
More changes.

1992-01-26 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rulfix.scm[1.4]:
More changes

1992-01-25 Chris Hanson <[email protected]>

* edwin/tagutl.scm[1.46]:
Retrying M-. by means of C-x ESC was causing M-, to get confused
because the information it needed was being recorded at the time it
was being typed in rather than when M-. was run.

1992-01-25 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rulfix.scm[1.3],
compiler/machines/i386/rulfix.scm[1.2]:
More changes.

1992-01-24 Chris Hanson <[email protected]>

* edwin/bufmnu.scm[1.118]:
Fix bug: Buffer Menu mode was unable to select buffers that had spaces
in their names. New method, identical to that in Emacs, delimits a
buffer name with two spaces. Moral: don't put two spaces in your
buffer names.

* edwin/process.scm[1.16], edwin/process.scm[1.15]:
RUN-SYNCHRONOUS-PROCESS was doing too much work in cases where the
subprocess was not doing both input and output. Now it optimizes the
I/O depending on what is needed.

* edwin/edwin.pkg[1.73], edwin/grpops.scm[1.15]:
Add new procedure GROUP-COPY-SUBSTRING!. This copies part of a
buffer into a pre-allocated string. This is like
GROUP-EXTRACT-STRING except that the latter also allocates the string.

* edwin/sendmail.scm[1.13]:
Change SENDMAIL-SEND-IT to run sendmail in the background when
MAIL-INTERACTIVE is false. This returns control to the user as soon
as the process is started and the message is successfully written to
it.

* edwin/process.scm[1.14]:
Change RUN-SYNCHRONOUS-PROCESS to be a little more aggressive about
writing data down to a subprocess.

1992-01-24 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/rules1.scm[1.3]:
Eliminate more fossils.

* compiler/machines/i386/rules1.scm[1.2]:
Remove illegal push operation.

1992-01-23 Arthur Gleckler <[email protected]>

* runtime/runtime.pkg[14.130]:
Export GRAPHICS-DEVICE? to the () package.

1992-01-23 Chris Hanson <[email protected]>

* edwin/rmail.scm[1.13]:
Fix M-x rmail-expunge so that it doesn't change the message displayed
unless it is deleted. In that case, it finds a nearby non-deleted
message to show instead.

* edwin/comint.scm[1.12]:
Fix stupid think-o in COMINT-LINE-START that caused various lossages
in Shell mode.

1992-01-23 Guillermo J. Rozas <[email protected]>

* compiler/machines/i386/machin.scm[1.2]:
Move value register to memory. Add virtual floating point registers.

1992-01-22 Arthur Gleckler <[email protected]>

* microcode/x11base.c[1.30]:
Fix braino in previous bug fix to primitive X-FONT-STRUCTURE.

* microcode/version.h[11.105], microcode/x11base.c[1.29]:
Correct bug in primitive X-FONT-STRUCTURE.

1992-01-22 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/i386.h[1.2]:
Fix comment with register allocation.
EBX is now free, the value register is contained in memory.

1992-01-20 Guillermo J. Rozas <[email protected]>

* microcode/wsize.c[9.31]:
Fix some minor bugs and accomodate some random compilers.

* microcode/version.h[11.104]:
More ANSI protoization.

* microcode/uxio.c[1.17]:
Fix typo in declaration.

* microcode/ux.h[1.30], microcode/uxtty.c[1.7]:
Add ANSI-style declarations (prototypes).

* microcode/debug.c[9.41], microcode/uxio.c[1.16]:
Fix conflicting declaration.

* microcode/artutl.c[1.8], microcode/dstack.h[1.4],
microcode/extern.c[9.32], microcode/findprim.c[9.45],
microcode/flonum.c[9.38], microcode/obstack.c[1.4],
microcode/obstack.h[1.5], microcode/osscheme.c[1.4],
microcode/prosfile.c[1.3], microcode/prosfs.c[1.6],
microcode/prosproc.c[1.10], microcode/prosterm.c[1.11],
microcode/ux.c[1.9], microcode/ux.h[1.29], microcode/uxio.c[1.15],
microcode/uxsock.c[1.6], microcode/uxtty.c[1.6]:
Add missing ANSI-style declarations.

* microcode/dstack.h[1.3]:
Add ANSI-style declarations for free and abort.

* microcode/debug.c[9.40]:
Add ANSI-style declarations for various extern declarations.

* microcode/bignum.h[9.26]:
Add ANSI-style declarations for bignum_quotient and bignum_remainder.

* microcode/tparam.c[1.2]:
Add ANSI-style declarations for tparam, tgoto, and tparam1.

* microcode/obstack.c[1.3]:
Add ANSI-style declaration for _obstack_allocated_p.

* microcode/lookprm.c[1.8], microcode/lookprm.c[1.7]:
Missing DEFUN.

* microcode/prims.h[9.40]:
Add missing extern declarations.
Make Define_Primitive issue ansidecl-style headers.

* microcode/cmpint.c[1.41]:
Add missing extern declarations.

1992-01-19 Chris Hanson <[email protected]>

* edwin/prompt.scm[1.151]:
Pop down the pop-up completions buffer as soon as it is not needed.
Previously, this was only popped down manually in shell mode.

1992-01-16 Guillermo J. Rozas <[email protected]>

* microcode/dump.c[9.34]:
Update date.

* microcode/dump.c[9.33], microcode/load.c[9.31],
microcode/mul.c[9.31]:
Protoize headers and extern declarations.

1992-01-15 Guillermo J. Rozas <[email protected]>

* microcode/findprim.c[9.44]:
Make Findprim generate declarations that use ansidecl.

* microcode/comlin.c[1.7]:
Typo caught by ANSI prototypes.

* microcode/cmpintmd/hppa.h[1.27], microcode/cmpintmd/mc68k.h[1.29],
microcode/cmpintmd/vax.h[1.3], microcode/comlin.c[1.6],
microcode/comlin.h[1.4]:
Update date.

* microcode/lookprm.c[1.6], microcode/lookup.c[9.49],
microcode/lookup.c[9.48], microcode/lookup.h[9.46]:
Fix edit bugs.

* microcode/cmpintmd/hppa.h[1.26], microcode/cmpintmd/mc68k.h[1.28],
microcode/cmpintmd/vax.h[1.2], microcode/comlin.c[1.5],
microcode/comlin.h[1.3], microcode/extern.h[9.43],
microcode/gccode.h[9.44], microcode/gcloop.c[9.38],
microcode/hunk.c[9.27], microcode/intern.c[9.52],
microcode/list.c[9.29], microcode/lookprm.c[1.5],
microcode/lookup.c[9.47], microcode/lookup.h[9.45],
microcode/memmag.c[9.47], microcode/missing.c[9.28],
microcode/prim.h[9.42], microcode/psbmap.h[9.34],
microcode/regex.c[1.10], microcode/regex.h[1.5],
microcode/step.c[9.30], microcode/string.c[9.35],
microcode/usrdef.h[9.38], microcode/version.h[11.103]:
Protoize headers.

* microcode/artutl.c[1.7], microcode/fixnum.c[9.35]:
Change date.

* microcode/artutl.c[1.6], microcode/fixnum.c[9.34],
microcode/flonum.c[9.37]:
protoize headers.

1992-01-14 Chris Hanson <[email protected]>

* edwin/comtab.scm[1.62]:
Don't show upper-case aliases of lower-case comtab bindings in
bindings lists.

1992-01-14 Guillermo J. Rozas <[email protected]>

* microcode/cmpint.c[1.40]:
Fix parsing problems in the stub section.

* microcode/cmpint.c[1.39]:
Add #include "ansidecl.h" to the section with the stubs for when there
is no compiler.

* microcode/cmpgc.h[1.17]:
Move definitions of linkage kinds outside the HAS_COMPILER_SUPPORT
#ifdef.

1992-01-13 Chris Hanson <[email protected]>

* edwin/dired.scm[1.122], edwin/unix.scm[1.21]:
Fix handling of compressed backup files in Dired.

* edwin/unix.scm[1.20]:
Use new read/write file method hooks to implement transparent support
for compressed files. Now Edwin will automatically uncompress a
compressed file when it is read in, and recompress it when it is
written back out. Backups are handled in the usual fashion, except
that the backup file name ends in "~.Z" instead of ".Z~"; this allows
compress and uncompress to work normally with backup files.

* edwin/fileio.scm[1.105]:
Add new variables READ-FILE-METHODS and WRITE-FILE-METHODS. These
provide hooks for implementing alternate methods to read or write
files. The alternate methods can be active only for particular
buffers or files, if that is desired.

* edwin/debuge.scm[1.44]:
When salvaging buffers, don't use WRITE-REGION, because it does
prompting and so forth. Use the lower-level GROUP-WRITE-TO-FILE which
does nothing special.

* edwin/bufcom.scm[1.90]:
Add new procedures CALL-WITH-TEMPORARY-BUFFER and NEW-BUFFER-NAME.

1992-01-10 Brian A. LaMacchia <[email protected]>

* edwin/techinfo.scm[1.2]:
Changed start value of techinfo-history-list.

* edwin/decls.scm[1.29], edwin/ed-ffi.scm[1.19], edwin/edwin.pkg[1.72],
edwin/loadef.scm[1.14]:
Added TechInfo mode (techinfo.scm) as an autoload.

1992-01-10 Chris Hanson <[email protected]>

* edwin/editor.scm[1.210]:
Disallow invocation of editor from within itself.

* edwin/cinden.scm[1.8]:
In SKIP-COMMENTS&LABELS: COLON-LINE-END should be ignored unless it
is explicitly set by the loop. Initialize it to #F, and test it
before use.

1992-01-09 Chris Hanson <[email protected]>

* edwin/make.scm[3.64]:
*** empty log message ***

* edwin/artdebug.scm[1.16], edwin/evlcom.scm[1.33]:
Fix continuation-browser bugs introduced by repl mode.

* edwin/comtab.scm[1.61], edwin/edwin.pkg[1.71],
edwin/keymap.scm[1.11], edwin/modefs.scm[1.137]:
Totally new implementation of comtabs. Now DEFINE-KEY and
DEFINE-PREFIX-KEY handle lower-case letters specially: if the
corresponding upper-case letter is undefined, it is converted into an
alias for the lower-case letter. Additional changes:
DEFINE-DEFAULT-KEY eliminated (it was unused); comtabs support aliases
much like Emacs does; internal structure of comtab varies depending on
the contents of the comtab.

* edwin/calias.scm[1.12]:
Adjust formatting of pages. Change KEY<? so that keys are sorted
first by bucky bits, and then by key code. A special key is always
greater than an ordinary character with the same bucky bits.

* edwin/autold.scm[1.51], edwin/buffer.scm[1.150],
edwin/fileio.scm[1.104], edwin/macros.scm[1.54],
edwin/modes.scm[1.26]:
* Change MAKE-MODE to accept parent mode rather than list of comtabs.

* Rename MODE-COMTAB to MINOR-MODE-COMTAB.

* New procedures MINOR-MODE? and MAJOR-MODE?.

* Eliminate NAME->MODE; use ->MODE instead.

1992-01-09 Mark Friedman <[email protected]>

* edwin/cinden.scm[1.7]:
There was an bug in SKIP-COMMENTS&LABELS where COLON-LINE-END
was initialized to 0. I have initialized it to what seems to be the
obvious thing. It seems to work, but I really have no idea whether it
is correct.

1992-01-08 Brian A. LaMacchia <[email protected]>

* edwin/rmailsum.scm[1.20]:
Added args to calls to rmail-summary-delete-message-forward.

* edwin/rmailsum.scm[1.19]:
Added prefix args to delete-forward, delete-backward,
undelete-forward and undelete-backward.

* edwin/rmailsum.scm[1.18]:
*** empty log message ***

1992-01-08 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.70]:
Don't export COMTAB-DISPATCH-ALISTS from "comtab".

1992-01-07 Brian A. LaMacchia <[email protected]>

* edwin/rmailsum.scm[1.17]:
Made rmail-buffer, rmail-summary-buffer and rmail-summary-vector
per-buffer variables.

1992-01-06 Chris Hanson <[email protected]>

* edwin/lincom.scm[1.118]:
Fix minor bug in M-x narrow-to-page that caused the last line of the
last page in a buffer to be excluded from the narrowing region if it
did not end in newline.

1992-01-06 Mark Friedman <[email protected]>

* edwin/basic.scm[1.117]:
Added confirmation prompts for SUSPEND-EDWIN and SUSPEND-SCHEME.

1992-01-01 Chris Hanson <[email protected]>

* edwin/fill.scm[1.52]:
Fix another minor bug in FILL-REGION-AS-PARAGRAPH.

1991-12-20 Chris Hanson <[email protected]>

* microcode/array.c[9.44], microcode/array.h[9.32],
microcode/fft.c[9.30], microcode/image.c[9.32]:
Change code for arrays of `double' floating-point numbers so that they
work on machines with floating-point alignment constraints.

1991-12-19 Arthur Gleckler <[email protected]>

* runtime/x11graph.scm[1.12]:
Fix braino in DEFINE-STRUCTURE.

* runtime/runtime.pkg[14.129], runtime/version.scm[14.143],
runtime/x11graph.scm[1.11]:
Extend X graphics support to handle the new primitives
X-FONT-STRUCTURE and X-GRAPHICS-COPY-AREA.

Add a selector operations for X-FONT-STRUCTURE, the object returned
by the X-FONT-STRUCTURE operation, and for X-CHARACTER-BOUNDS, part
of the X-FONT-STRUCTURE.

* microcode/version.h[11.102], microcode/x11base.c[1.28],
microcode/x11graph.c[1.18]:
Add graphics primitives:

X-FONT-STRUCTURE
Given an X display and the name of a font, return a Scheme
equivalent of the X font structure, which describes the dimensions
of each character, etc.

X-GRAPHICS-COPY-AREA
Given an X window and coordinates describing two rectangles in it,
move the contents of the first rectangle to the other.

1991-12-16 Chris Hanson <[email protected]>

* rcs/logmer.scm[1.4]:
Update for changes to CMDL.

1991-12-10 Chris Hanson <[email protected]>

* runtime/unpars.scm[14.25]:
Do not print a flonum array as a number.

* runtime/gcdemn.scm[14.4]:
Simplify GC daemon triggering loop to reduce overhead during GC.

1991-12-07 Chris Hanson <[email protected]>

* microcode/missing.c[9.27]:
Fix bugs in frexp: when scaling up or down, was not making sure that
state variable did not overflow or underflow.

1991-12-06 Chris Hanson <[email protected]>

* edwin/rmail.scm[1.12]:
Eliminate random blank line being inserted before a forwarded
message.

1991-12-06 sasha <[email protected]>

* 6001/nodefs.scm[1.3]:
Fix unref variable.

* 6001/nodefs.scm[1.2]:
Changes to match runtime 14.142.

1991-12-05 Mark Friedman <[email protected]>

* edwin/evlcom.scm[1.32]:
Added support for an evaluation-output-receiver which receives the
value and output resulting from evaluation.

* edwin/artdebug.scm[1.15]:
Made consistent with new evaluation commands.

1991-12-02 Chris Hanson <[email protected]>

* compiler/base/toplev.scm[4.37]:
Change to match runtime 14.142.

1991-11-26 Brian A. LaMacchia <[email protected]>

* edwin/rmailsrt.scm[1.6]:
Arthur ran into a problem where kill-string seemed to be hanging.
Since kill-string wasn't necessary, it was changed to delete-string (the
kill ring would never be used).

1991-11-26 Chris Hanson <[email protected]>

* edwin/edwin.ldr[1.21]:
Fix typo.

* rcs/Attic/make.scm[1.3], rcs/logmer.scm[1.3], rcs/scheme.scm[1.2]:
Update for new pathname implementation.

* edwin/artdebug.scm[1.14], edwin/bufout.scm[1.7],
edwin/ed-ffi.scm[1.18], edwin/editor.scm[1.209],
edwin/edtstr.scm[1.18], edwin/edwin.ldr[1.19], edwin/edwin.pkg[1.68],
edwin/evlcom.scm[1.31], edwin/intmod.scm[1.40], edwin/make.scm[3.63],
edwin/modefs.scm[1.136], edwin/tterm.scm[1.9], edwin/winout.scm[1.7],
edwin/xterm.scm[1.24]:
Requires runtime 14.142

* Replace scheme-interaction mode by new inferior-repl mode. The new
mode runs a standard REP loop as an inferior coprocess, and supports
both the runtime system's debugger and edwin's debugger.

* Transcript buffer used to be same as interaction buffer; now it is a
separate buffer. In addition, it records input expressions as well
as the output.

* Extensive reorganization of debugger. Only substantive change is
for compatibility with changes to debugger in runtime system.
However, the code is now organized in a somewhat top-down fashion,
which should aid comprehension.

* Delete FRESH-LINE and FRESH-LINES procedures. Former is supported
in runtime system, latter is random.

* Editor cmdl changed to use new interface.

* edwin/simple.scm[1.40]:
Fix GUARANTEE-NEWLINES so that it inserts the minimum number of
newlines to guarantee that there are N newlines to the left of point.
Fix INSERT-REGION to work even when the region is being inserted back
into the same buffer.

* edwin/lincom.scm[1.117]:
Change page motion commands to use MOVE-THING procedure, and to signal
failure at beginning and end of buffer.

* edwin/hlpcom.scm[1.102]:
SUBSTITUTE-COMMAND-KEYS no longer takes optional substring range
arguments, but instead takes an optional buffer argument. The buffer
specifies which comtabs to use for the substitution.

* runtime/dbgcmd.scm[14.13], runtime/dbgutl.scm[14.14],
runtime/debug.scm[14.31], runtime/ed-ffi.scm[1.3],
runtime/emacs.scm[14.10], runtime/error.scm[14.29],
runtime/fileio.scm[1.2], runtime/format.scm[14.5],
runtime/gc.scm[14.7], runtime/gcstat.scm[14.5],
runtime/genio.scm[1.2], runtime/global.scm[14.34],
runtime/input.scm[14.14], runtime/intrpt.scm[14.8],
runtime/load.scm[14.31], runtime/output.scm[14.12],
runtime/parse.scm[14.17], runtime/port.scm[1.2],
runtime/pp.scm[14.23], runtime/rep.scm[14.22],
runtime/runtime.pkg[14.128], runtime/savres.scm[14.23],
runtime/ttyio.scm[1.2], runtime/version.scm[14.142],
runtime/where.scm[14.10], runtime/wrkdir.scm[14.5]:
Changes in appearance:

* Loading, dumping, and warning messages now preceded by ";".

* New prompts for debugger, where, error, and breakpoint.

* REP loops started by the debugger and where no longer have
distinctive prompts. Now they use the standard prompt.

* PROMPT-FOR-COMMAND-CHAR now echos the character it is prompting for.

Changes to port implementation:

* Standard output procedures like WRITE no longer flush the output
port after they write to it. Instead, they invoke the new operation
DISCRETIONARY-FLUSH-OUTPUT (if it exists). At present, only the
console defines this new operation to do anything -- thus the
console behaves the same as before, unlike other ports. The new
procedure FLUSH-OUTPUT is used to explicitly flush output ports.

* New port operations control the blocking and terminal modes of
ports:

PORT/INPUT-BLOCKING-MODE
PORT/SET-INPUT-BLOCKING-MODE
PORT/WITH-INPUT-BLOCKING-MODE

PORT/OUTPUT-BLOCKING-MODE
PORT/SET-OUTPUT-BLOCKING-MODE
PORT/WITH-OUTPUT-BLOCKING-MODE

PORT/INPUT-TERMINAL-MODE
PORT/SET-INPUT-TERMINAL-MODE
PORT/WITH-INPUT-TERMINAL-MODE

PORT/OUTPUT-TERMINAL-MODE
PORT/SET-OUTPUT-TERMINAL-MODE
PORT/WITH-OUTPUT-TERMINAL-MODE

* New input-port operation READ allows the port to define how a READ
is performed. This permits the implementation of ports that read
s-expressions directly.

Changes to CMDL/REPL implementation:

* CMDL-MESSAGE/ACTIVE now passes a port to its argument, rather than a
cmdl object.

* Incompatible changes to arguments and return values of PUSH-CMDL,
PUSH-REPL, MAKE-CMDL. The procedures no longer start the cmdl that
they create, but just return it. It must be explicitly started by
calling one of the new procedures CMDL/START or REPL/START.

* cmdl objects now have just one bidirectional port instead of two
unidirectional ports.

* The prompting procedures PROMPT-FOR-EXPRESSION,
PROMPT-FOR-COMMAND-CHAR, and PROMPT-FOR-CONFIRMATION no longer take
a cmdl object as their optional second argument -- instead they take
a port. The new procedure PROMPT-FOR-COMMAND-EXPRESSION is similar.

* cmdl objects now support custom operations of various kinds, to
allow the customization of behavior. The previous spawn-child
special operation has been eliminated.

Changes to DEBUG/WHERE implementation:

* Debugger command interface now passes a port to each command
procedure, in addition to the state object. The current input and
output ports are not bound to anything in particular while the
debugger is running.

* Arguments to debugger command procedures are now optional, so that
using X mode in the debugger is more convenient.

Changes to various hooks:

* Most of the hooks that were used by the Emacs interface have been
eliminated. That functionality is now provided by custom port
operations. Hooks that were affected:

debugger output
prompting
run and gc lights
repl presentation

* Definition of keyboard interrupt hooks changed: if the hooks are #F,
they are ignored, otherwise they are invoked. If the interrupt
handler hooks return, that means they declined to handle the
interrupt, and the standard action is taken.

* HOOK/BEFORE-RESTART has been replaced by HOOK/INVOKE-RESTART. The
new hook is used by INVOKE-RESTART as well as
INVOKE-RESTART-INTERACTIVELY, and it defaults to APPLY.

* PARSE-OBJECT/INTERNAL and PARSE-OBJECTs/INTERNAL eliminated.

* runtime/uerror.scm[14.30]:
Put semicolon in front of "Automagically impurifying..." message.

* runtime/record.scm[1.12]:
Use fixnum arithmetic to improve performance.
Add RECORD-MODIFIER as alias for RECORD-UPDATER.

* runtime/gcnote.scm[14.9]:
Change (CMDL/OUTPUT-PORT (NEAREST-CMDL)) to (NEAREST-CMDL/PORT).

* runtime/advice.scm[14.10]:
Eliminate references to CMDL-MESSAGE/STANDARD.

1991-11-26 Mark Friedman <[email protected]>

* edwin/decls.scm[1.28], edwin/edwin.ldr[1.20], edwin/edwin.pkg[1.69]:
Support for Bochser mode.

1991-11-25 Arthur Gleckler <[email protected]>

* edwin/tagutl.scm[1.45]:
Fix run-on sentence:
"Tags file has changed, read new contents"
with semicolon.

1991-11-25 Chris Hanson <[email protected]>

* microcode/cmpintmd/mips.h[1.10]:
Update interface to match change to generated code of closure header.

1991-11-22 Arthur Gleckler <[email protected]>

* edwin/telnet.scm[1.5]:
Fix bug: If a telnet buffer's process dies and is reused for another
invocation of telnet, if the buffer is already selected, Edwin
complains that there is no process for the buffer.

* edwin/kmacro.scm[1.35]:
Fix NAME-LAST-KBD-MACRO; it was passing a string to MAKE-COMMAND
instead of a symbol.

1991-11-21 Chris Hanson <[email protected]>

* edwin/lspcom.scm[1.156], edwin/motcom.scm[1.45],
edwin/rmailsum.scm[1.16], edwin/texcom.scm[1.34],
edwin/things.scm[1.83]:
Change procedures MOVE-THING, MOVE-THING-SAVING-POINT, MARK-THING, and
KILL-THING to take an additional argument that specifies the limit
behavior of the motion procedure. This is needed because these
procedures were being used in contexts that required different
behavior -- and because they didn't supply it, some of the usages were
incorrect.

* edwin/clscon.scm[1.5]:
WARN procedure doesn't care what the default output port is.

* microcode/option.c[1.13]:
Fix bug: uninitialized variable `lwd'.

1991-11-19 Mark Friedman <[email protected]>

* edwin/edtstr.scm[1.17]:
Added support for modified (i.e. with shift, control or meta) mouse buttons.

1991-11-15 Chris Hanson <[email protected]>

* runtime/input.scm[14.13], runtime/make.scm[14.31],
runtime/output.scm[14.11], runtime/process.scm[1.14],
runtime/record.scm[1.11], runtime/runtime.pkg[14.127],
runtime/socket.scm[1.3]:
Redesign ports. New design supports bidirectional ports. Old code
should continue to work, with two (unlikely) exceptions: the
input/output port pairs for sockets and processes are now implemented
as bidirectional ports, and closing one of the ports automatically
closes the other as well.

* New procedures:

CLOSE-PORT
I/O-PORT?
MAKE-GENERIC-I/O-PORT
MAKE-I/O-PORT
OPEN-I/O-FILE
PORT/COPY
PORT/INPUT-CHANNEL
PORT/OPERATION
PORT/OPERATION-NAMES
PORT/OUTPUT-CHANNEL
PORT/STATE
PORT?
SET-PORT/STATE!
SUBPROCESS-I/O-PORT

* New global variable CONSOLE-I/O-PORT identifies the bidirectional
port that communicates with Scheme's console. CONSOLE-INPUT-PORT
and CONSOLE-OUTPUT-PORT are initially EQ? to this port.

* Obsolete procedures:

Old name New name
---------------------------- --------------------
INPUT-PORT/CHANNEL PORT/INPUT-CHANNEL
INPUT-PORT/COPY PORT/COPY
INPUT-PORT/CUSTOM-OPERATION PORT/OPERATION
INPUT-PORT/OPERATION PORT/OPERATION
INPUT-PORT/OPERATION-NAMES PORT/OPERATION-NAMES
INPUT-PORT/STATE PORT/STATE
OUTPUT-PORT/CHANNEL PORT/OUTPUT-CHANNEL
OUTPUT-PORT/COPY PORT/COPY
OUTPUT-PORT/CUSTOM-OPERATION PORT/OPERATION
OUTPUT-PORT/OPERATION PORT/OPERATION
OUTPUT-PORT/OPERATION-NAMES PORT/OPERATION-NAMES
OUTPUT-PORT/STATE PORT/STATE
SET-INPUT-PORT/STATE! SET-PORT/STATE!
SET-OUTPUT-PORT/STATE! SET-PORT/STATE!
SUBPROCESS-INPUT-PORT SUBPROCESS-I/O-PORT
SUBPROCESS-OUTPUT-PORT SUBPROCESS-I/O-PORT

For now these procedures still exist.

* Obsolete input-port operations:

Old name New name
--------------- ---------------------
BUFFER-SIZE INPUT-BUFFER-SIZE
BUFFERED-CHARS BUFFERED-INPUT-CHARS
CHANNEL INPUT-CHANNEL
SET-BUFFER-SIZE SET-INPUT-BUFFER-SIZE

INPUT-PORT/OPERATION and INPUT-PORT/CUSTOM-OPERATION perform these
translations so your programs should continue to work.

* Obsolete output-port operations:

Old name New name
--------------- ---------------------
BUFFER-SIZE OUTPUT-BUFFER-SIZE
BUFFERED-CHARS BUFFERED-OUTPUT-CHARS
CHANNEL OUTPUT-CHANNEL
SET-BUFFER-SIZE SET-OUTPUT-BUFFER-SIZE

OUTPUT-PORT/OPERATION and OUTPUT-PORT/CUSTOM-OPERATION perform these
translations so your programs should continue to work.

* The ASSOCIATED-PORT operation is no longer implemented by any
runtime system port. Ports that previously supported this operation
are now bidirectional.

* WITH-INPUT-FROM-FILE and WITH-OUTPUT-TO-FILE no longer close the
port when they are exited abnormally.

* Change cold-boot sequence to permit records to be used in most of
runtime system.

* New procedure RECORD-COPY.

* New files "genio.scm", "fileio.scm", and "ttyio.scm" replace old
files "genin.scm", "genout.scm", "filein.scm", "filout.scm",
"ttyin.scm", and "ttyout.scm".

* New file "port.scm".

1991-11-15 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/mc68k.m4[1.21]:
Replace an instance of %a4 with dlink.

1991-11-14 Mark Friedman <[email protected]>

* edwin/comred.scm[1.90]:
Changed %DISPATCH-ON-COMMAND so that it does not optimize forward-char
and backward-char processing when there is a move-point daemon.

1991-11-06 Arthur Gleckler <[email protected]>

* edwin/info.scm[1.109]:
Fix minor breakage made in Info that happened when pathname changes
were made.

1991-11-06 Chris Hanson <[email protected]>

* edwin/dired.scm[1.121]:
Change MAKE-DIRED-BUFFER to do PATHNAME-SIMPLIFY.

* edwin/filcom.scm[1.164]:
Change FIND-FILE-NOSELECT to do PATHNAME-SIMPLIFY.

* edwin/buffer.scm[1.149], edwin/filcom.scm[1.163]:
Change SET-BUFFER-DEFAULT-DIRECTORY! to do PATHNAME-SIMPLIFY on its
argument.

1991-11-05 Chris Hanson <[email protected]>

* edwin/filcom.scm[1.162]:
Use new procedure PATHNAME-SIMPLIFY to simplify the default directory
of a buffer when it is set.

* runtime/pathnm.scm[14.18], runtime/runtime.pkg[14.126],
runtime/unxpth.scm[14.8], runtime/wrkdir.scm[14.4]:
New procedure PATHNAME-SIMPLIFY maps a pathname into an equivalent
simpler pathname in a host-dependent fashion. Unix provides one
simplification: ".." directories are removed when doing so does not
change the meaning of the pathname.

Additionally, treatment of pathname hosts changed to improve
performance, and to fix problems with fasdumping of pathname objects.
Current implementation permits pathnames to be fasdumped and then
fasloaded without changing their behavior.

* runtime/pathnm.scm[14.17]:
Fix think-o in ENOUGH-NAMESTRING.

1991-11-04 Brian A. LaMacchia <[email protected]>

* edwin/rmailsrt.scm[1.5]:
Fixed bug in rmail-sortable-date-string.
4 Nov 91 became "9111 4", and 01 Nov 91 became "911101".
Which meant that 4 Nov 91 sorted before 01 Nov 91.

1991-11-04 Chris Hanson <[email protected]>

* microcode/version.h[11.101]:
*** empty log message ***

* edwin/artdebug.scm[1.13], edwin/editor.scm[1.208],
edwin/evlcom.scm[1.30]:
Change signalling of errors so that bell is run before the debugger
confirmation prompt is given. Reorganize code slightly.

* edwin/lincom.scm[1.116], edwin/pasmod.scm[1.44]:
Change algorithm used to fix up whitespace after M-^.

* compiler/base/crsend.scm[1.6], compiler/base/crstop.scm[1.9],
compiler/base/make.scm[4.89], compiler/base/toplev.scm[4.36],
compiler/etc/comcmp.scm[1.3],
compiler/machines/bobcat/decls.scm[4.30],
compiler/machines/mips/decls.scm[1.5],
compiler/machines/spectrum/decls.scm[4.30],
compiler/machines/vax/decls.scm[4.8], cref/conpkg.scm[1.3],
cref/forpkg.scm[1.7], cref/make.scm[1.8], cref/redpkg.scm[1.4],
cref/toplev.scm[1.5], edwin/basic.scm[1.116],
edwin/buffer.scm[1.148], edwin/bufmnu.scm[1.117],
edwin/comint.scm[1.11], edwin/comred.scm[1.89],
edwin/debuge.scm[1.43], edwin/dired.scm[1.120],
edwin/filcom.scm[1.161], edwin/fileio.scm[1.103],
edwin/hlpcom.scm[1.101], edwin/info.scm[1.108], edwin/make.scm[3.62],
edwin/modlin.scm[1.12], edwin/paths.scm[1.11],
edwin/process.scm[1.13], edwin/rmail.scm[1.11],
edwin/sendmail.scm[1.12], edwin/shell.scm[1.8],
edwin/tagutl.scm[1.44], edwin/unix.scm[1.19], edwin/utils.scm[1.26],
sf/butils.scm[4.5], sf/make.scm[4.22], sf/toplev.scm[4.8]:
Changes to match runtime version 14.141.

* runtime/ed-ffi.scm[1.2], runtime/emacs.scm[14.9],
runtime/equals.scm[14.4], runtime/error.scm[14.28],
runtime/global.scm[14.33], runtime/infutl.scm[1.22],
runtime/intrpt.scm[14.7], runtime/io.scm[14.28],
runtime/load.scm[14.30], runtime/make.scm[14.30],
runtime/option.scm[14.12], runtime/packag.scm[14.10],
runtime/pathnm.scm[14.16], runtime/runtime.pkg[14.125],
runtime/savres.scm[14.22], runtime/sfile.scm[14.8],
runtime/starbase.scm[1.5], runtime/system.scm[14.8],
runtime/unxdir.scm[14.8], runtime/unxprm.scm[1.16],
runtime/unxpth.scm[14.7], runtime/version.scm[14.141],
runtime/wrkdir.scm[14.3]:
Pathname abstraction redesigned. New design is very similar to the
Common Lisp pathname abstraction.

Incompatible changes:

* ->PATHNAME no longer accepts a symbol as an argument. Only strings
and pathnames are valid.

* Procedures eliminated:

CANONICALIZE-INPUT-FILENAME
CANONICALIZE-INPUT-PATHNAME
CANONICALIZE-OUTPUT-FILENAME
CANONICALIZE-OUTPUT-PATHNAME
CANONICALIZE-OVERWRITE-FILENAME
CANONICALIZE-OVERWRITE-PATHNAME
HOME-DIRECTORY-PATHNAME
INIT-FILE-TRUENAME
PATHNAME->ABSOLUTE-PATHNAME
PATHNAME->INPUT-TRUENAME
PATHNAME->OUTPUT-TRUENAME
PATHNAME->OVERWRITE-TRUENAME
PATHNAME->STRING
PATHNAME-COMPONENTS
PATHNAME-DEFAULT-HOST
PATHNAME-DIRECTORY-PATH
PATHNAME-DIRECTORY-STRING
PATHNAME-NAME-PATH
PATHNAME-NAME-STRING
PATHNAME-NEW-HOST
PATHNAME-RELATIVE?
STRING->PATHNAME
SYMBOL->PATHNAME

The file "old-path.scm" contains emulations for all of these
procedures, except PATHNAME-DEFAULT-HOST, PATHNAME-NEW-HOST, and
SYMBOL->PATHNAME.

* UNIX/FILE-ACCESS has been renamed to FILE-ACCESS. UNIX/FILE-ACCESS
still exists as a synonym, but is obsolete.

* PATHNAME-DEFAULT no longer accepts a HOST argument.

* DELETE-FILE no longer returns a useful value. Attempting to delete
a non-existent file signals an error.

* Various "loading" and "dumping" messages now use ENOUGH-NAMESTRING
to eliminate redundant part of the filename being printed.

* MAKE-PATHNAME checks its arguments for consistency, and signals an
error for illegal arguments.

* Representation of pathname directories changed to match Common
Lisp. Directory is now either #F or a list of symbols and strings
with first element either 'ABSOLUTE or 'RELATIVE.

* Unix pathnames now set DEVICE and VERSION to 'UNSPECIFIC.
'UNSPECIFIC now means that the field is not used by the operating
system.

* Parsing rules for unix filenames changed: the file type is the part
of the name after the last dot, if any. If the dot occurs at the
beginning or end of the filename, then it doesn't count -- in that
case there is no type. Thus, names like "." and ".." have no type.

Enhancements:

* New procedures and variables. Most are defined as in Common Lisp.

*DEFAULT-PATHNAME-DEFAULTS*
->NAMESTRING
->TRUENAME
DIRECTORY-NAMESTRING
DIRECTORY-PATHNAME
DIRECTORY-PATHNAME-AS-FILE
ENOUGH-NAMESTRING
ENOUGH-PATHNAME
FILE-ACCESS
FILE-ATTRIBUTES-DIRECT (same as FILE-ATTRIBUTES)
FILE-MODIFICATION-TIME-DIRECT
FILE-MODIFICATION-TIME-INDIRECT (same as FILE-MODIFICATION-TIME)
FILE-NAMESTRING
FILE-PATHNAME
FILE-READABLE?
HOST-NAMESTRING
PATHNAME-WILD?
PATHNAME=?

* All pathname procedures now do an implicit ->PATHNAME on their
"pathname" and "defaults" arguments.

* MERGE-PATHNAMES second argument is now optional, and defaults to
*DEFAULT-PATHNAME-DEFAULTS*. It accepts a third optional argument,
DEFAULT-VERSION, which defaults to 'NEWEST. The merging algorithm
has been changed to match Common Lisp.

* *DEFAULT-PATHNAME-DEFAULTS* is updated by
SET-WORKING-DIRECTORY-PATHNAME! and CD as long as it is EQ? to the
working directory.

* EQUAL? guaranteed to work on pathnames.

Miscellaneous:

* Old Starbase graphics eliminated.

* Files "unk*.scm" and "vms*.scm" removed. They will need to be
rewritten if this support is desired in the future.

* microcode/pruxfs.c[9.48]:
New primitive FILE-EQ?.

1991-11-04 Guillermo J. Rozas <[email protected]>

* microcode/unxutl/Attic/makefile[1.16]:
Add install.world target.

* microcode/unxutl/Attic/makefile[1.15]:
Add more files to remove when cleaning the directory.

* microcode/unxutl/Attic/y300.lcl[1.19]:
Changes because of minor reorganization of ymakefile to make bchscheme
usr bchdef.c instead of usrdef.c

* microcode/unxutl/Attic/ymkfile[1.50]:
Change the dependencies for bchmmg.o now that it includes ux.h for the
POSIX-style declarations.

* microcode/bchdrn.c[1.2]:
Change the way that drones determine whether they are being waited on.
A bitmask is used now with a bit per drone.

Reorder some operations to reduce the size of some potential interrupt
windows.

Use POSIX signal manipulation routines instead of BSD-style routines.

Make SIGCONT do a longjmp to avoid a signal deadlock.

* microcode/bchdrn.h[1.2]:
Increment the drone version number.

* microcode/bchmmg.c[9.66]:
Add -gc-start-position and -gc-end-position options for bchscheme.
These options delimit the region of the gc file where bchscheme will
write, thus two bchschemes can share the same file. The region is
locked using lockf.

Change sleep_on_pid to sleep_awaiting_drones that uses a bit mask
specifying which drones we are waiting for.

Reorder some operations to reduce the size of some potential interrupt
windows.

* microcode/bchdmp.c[9.58], microcode/bchgcc.h[9.42],
microcode/option.c[1.12], microcode/option.h[1.6]:
Add -gc-start-position and -gc-end-position options for bchscheme.

1991-11-04 Mark Friedman <[email protected]>

* edwin/struct.scm[1.79]:
Added support for a move-point-daemon which gets called when the point
is moved.

1991-10-30 Chris Hanson <[email protected]>

* compiler/Attic/Makefile[1.9]:
Fix rule for making "locked".

* compiler/back/syerly.scm[1.8], compiler/base/constr.scm[1.2],
compiler/fgopt/param.scm[1.3],
compiler/machines/bobcat/decls.scm[4.29],
compiler/machines/bobcat/inerly.scm[1.7],
compiler/machines/mips/decls.scm[1.4],
compiler/machines/spectrum/decls.scm[4.29],
compiler/machines/vax/decls.scm[4.7],
compiler/machines/vax/inerly.scm[1.6], cref/anfile.scm[1.5],
cref/object.scm[1.4], runtime/defstr.scm[14.18], sf/pardec.scm[4.5]:
Eliminate use of MAPCAN.

* runtime/pp.scm[14.22]:
Fix $Header$ line, various broken formatting, and repaginate.

1991-10-29 Chris Hanson <[email protected]>

* runtime/error.scm[14.27], runtime/load.scm[14.29],
runtime/pathnm.scm[14.15], runtime/runtime.pkg[14.124],
runtime/sfile.scm[14.7], runtime/uerror.scm[14.29],
runtime/unxprm.scm[1.15]:
Introduce new condition type FILE-OPERATION-ERROR to handle errors
generated by all file and directory primitives. Consequently
eliminate FILE-TOUCH-ERROR and OPEN-FILE-ERROR.

* microcode/osfs.h[1.3], microcode/prosfs.c[1.4],
microcode/pruxfs.c[9.46], microcode/utabmd.scm[9.60],
microcode/ux.h[1.28], microcode/uxfs.c[1.5]:
Change all primitives that use the `stat' and `lstat' system calls to
check for EINTR, and to signal system-call errors if the file's
existence cannot be determined. Change the FILE-EXISTS? primitive to
return zero (instead of #F, as previously) if the file being tested is
a symbolic link but it doesn't point at anything.

* edwin/things.scm[1.82]:
Fix bug in limit handling of motion pairs.

* edwin/process.scm[1.12]:
Internal restructuring of previous change.

* edwin/lspcom.scm[1.155]:
Minor non-functional tweaks.

* edwin/c-mode.scm[1.48], edwin/cinden.scm[1.6], edwin/edwin.pkg[1.67]:
Fix numerous bugs in C indentation code. Upgrade C mode and C
indentation to standard of Emacs 18.57.

* edwin/buffer.scm[1.147]:
Extend VARIABLE-LOCAL-VALUE and REF-VARIABLE to handle a mark or a
group in place of a buffer argument.

* runtime/uenvir.scm[14.25], runtime/uproc.scm[1.3]:
Compiler can output multiclosures that are not compiled closure
objects, but vectors. The debugging code was never updated to handle
this case.

* runtime/process.scm[1.13]:
When associating ports of a process, must associated in both
directions; previously the association was only made from the second
port to the first.

1991-10-29 Guillermo J. Rozas <[email protected]>

* microcode/bignum.c[9.36], microcode/bigprm.c[1.2],
microcode/bitstr.c[9.49], microcode/bkpt.c[9.25],
microcode/boot.c[9.71], microcode/char.c[9.29],
microcode/cmpintmd/hppa.h[1.25], microcode/comutl.c[1.21],
microcode/critsec.h[1.2], microcode/daemon.c[9.29],
microcode/debug.c[9.39], microcode/dfloat.c[1.3],
microcode/extern.c[9.31], microcode/extern.h[9.42],
microcode/fasdump.c[9.52], microcode/fasload.c[9.63],
microcode/interp.c[9.64], microcode/osscheme.c[1.3],
microcode/primutl.c[9.53], microcode/prosenv.c[1.5],
microcode/prosfs.c[1.5], microcode/prosproc.c[1.9],
microcode/prosterm.c[1.10], microcode/prostty.c[1.3],
microcode/pruxenv.c[1.5], microcode/pruxfs.c[9.47],
microcode/pruxsock.c[1.4], microcode/string.c[9.34],
microcode/tterm.c[1.2], microcode/utils.c[9.51],
microcode/uxsig.c[1.18], microcode/uxtrap.c[1.16],
microcode/vector.c[9.34], microcode/x11base.c[1.27]:
Protoize many functions and their extern declarations.

* microcode/unxutl/Attic/makefile[1.14]:
Add bchdrn as one of the targets.

* microcode/unxutl/Attic/ymkfile[1.49]:
- Add bchdrn as one of the targets.
- bchscheme now has its own "usrdef.c" file, called bchdef.c .

* microcode/option.c[1.11]:
Split the actual search in search_path_for_file into
search_for_library_file so that other parts of the microcode can call
it without terminating in case of failure.

Change the default values of some bchscheme options.

* microcode/option.h[1.5]:
Split the actual search in search_path_for_file into
search_for_library_file so that other parts of the microcode can call
it without terminating in case of failure.

* microcode/Attic/config.h[9.64]:
Define HPPA_QUAD_MASK and re-write ADDRESS_TO_DATUM to use it so that
the bchscheme windows can be in a different quadrant.

* microcode/bchdmp.c[9.57], microcode/bchgcc.h[9.41],
microcode/bchgcl.c[9.43], microcode/bchmmg.c[9.65],
microcode/bchpur.c[9.56]:
Major overhaul of bchscheme:
- Bchscheme can now overlap I/O by using shared memory and drone
processes.
- Bchscheme parameters can be re-set while running.
Only the gc-file is specified exclusively from the command line.
- Many statistics are taken and can be read and manipulated from scheme.

* microcode/version.h[11.100]:
Major overhaul of bchscheme:
- Bchscheme can now overlap I/O by using shared memory and drone
processes.
- Bchscheme parameters can be re-set while running.
Only the gc-file is specified exclusively from the command line.
- Many statistics are taken and can be read and manipulated from scheme.

Protoize many functions and their declarations.

1991-10-26 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.66], edwin/print.scm[1.4]:
Eliminate SHELL-COMMAND-REGION.

* edwin/schmod.scm[1.23]:
Add a few new indentation methods.

* edwin/loadef.scm[1.13], edwin/manual.scm[1.7]:
Move variable definition from "manual" to "loadef".

* edwin/dired.scm[1.119], edwin/manual.scm[1.6], edwin/print.scm[1.3],
edwin/process.scm[1.11], edwin/rmail.scm[1.10],
edwin/sendmail.scm[1.11]:
M-x shell-command and M-x shell-command-on-region changed to make
process's working directory be the current buffer's default directory.
Procedures SHELL-COMMAND and RUN-SYNCHRONOUS-SUBPROCESS changed to
permit specification of this directory, and also to specify whether
PTYs should be used. SHELL-COMMAND-ON-REGION eliminated because
SHELL-COMMAND now takes an input-region argument.

* runtime/error.scm[14.26], runtime/io.scm[14.27],
runtime/load.scm[14.28], runtime/pathnm.scm[14.14],
runtime/sfile.scm[14.6], runtime/uerror.scm[14.28]:
When file- or directory-opening primitives get errors, signal those
errors as open-file-error conditions. In those cases, don't use
another condition as the explanation: create a meaninful error string
from the error's context.

This change has these effects:

* All file/directory-opening primitives now signal the same condition.

* RETRY and USE-VALUE handlers are available whenever that condition
is signalled; previously these handlers were only sometimes
available, and there was no reasonable way to provide them when they
were not.

1991-10-25 Chris Hanson <[email protected]>

* rcs/mklogs.scm[1.3]:
Exclude "documentation" and "etc" from compiler RCS.log.

* compiler/machines/mips/compiler.sf-big[1.3],
compiler/machines/mips/compiler.sf-little[1.3],
compiler/machines/spectrum/compiler.sf[1.13]:
Don't generate full cref.

* compiler/machines/bobcat/compiler.pkg[1.34],
compiler/machines/bobcat/machin.scm[4.26],
compiler/machines/bobcat/make.scm-68020[4.88],
compiler/machines/bobcat/make.scm-68040[4.88],
compiler/machines/bobcat/mc68ktgl.scm[1.2],
compiler/machines/bobcat/rules1.scm[4.36],
compiler/machines/bobcat/rulrew.scm[1.4],
compiler/machines/mips/lapgen.scm[1.8],
compiler/machines/mips/machin.scm[1.6],
compiler/machines/mips/machin.scm[1.5],
compiler/machines/mips/make.scm-big[4.88],
compiler/machines/mips/make.scm-little[4.88],
compiler/machines/mips/rules1.scm[1.5],
compiler/machines/mips/rules2.scm[1.2],
compiler/machines/mips/rules3.scm[1.10],
compiler/machines/mips/rules4.scm[1.2],
compiler/machines/mips/rulfix.scm[1.4],
compiler/machines/mips/rulflo.scm[1.6],
compiler/machines/mips/rulrew.scm[1.2],
compiler/machines/spectrum/machin.scm[4.24],
compiler/machines/spectrum/make.scm[4.88],
compiler/machines/spectrum/rulflo.scm[4.33],
compiler/machines/spectrum/rulrew.scm[1.4],
compiler/machines/vax/machin.scm[4.8],
compiler/machines/vax/make.scm[4.88],
compiler/machines/vax/rulrew.scm[1.2],
compiler/rtlbase/rtlcon.scm[4.22], compiler/rtlbase/rtlexp.scm[4.18],
compiler/rtlbase/rtlty1.scm[4.19], compiler/rtlgen/opncod.scm[4.45],
compiler/rtlopt/rcompr.scm[1.12], compiler/rtlopt/rinvex.scm[1.6]:
* Introduce new RTL expression type CONS-NON-POINTER and change
appropriate instances of CONS-POINTER to use the new type.

* Replace RTL expression type @ADDRESS->FLOAT with new type
OBJECT->FLOAT.

* Introduce new internal switch USE-PRE/POST-INCREMENT?. Change code
generation of in-line consing to pay attention to this switch.

* Merge common parts of "machine/make" into new file "base/make".

On MIPS:

* Change code sequence that assigns type codes to assume that the type
field has a known value. This eliminates one instruction in every
type-code assignment. It assumes that the data segment bits have a
certain value, but the microcode already does this.

* Cache immediate constants in registers, and remember which registers
contain which constants. (This should be improved by noticing when
arithmetic operations are done on known constants and cacheing the
results.)

* Set USE-PRE/POST-INCREMENT? to false, saving one instruction in
every CONS, and multiple instructions in each call to VECTOR.

* edwin/comint.scm[1.10], edwin/curren.scm[1.93],
edwin/decls.scm[1.27], edwin/regexp.scm[1.60], edwin/shell.scm[1.7],
edwin/simple.scm[1.39], edwin/syntax.scm[1.74],
edwin/telnet.scm[1.4]:
Include the integrable definitions from a few basic files throughout
the editor, to reduce space and increase speed.

* compiler/base/make.scm[4.88], edwin/make.scm[3.61]:
*** empty log message ***

1991-10-23 Chris Hanson <[email protected]>

* edwin/unix.scm[1.18]:
Primitive DIRECTORY-CLOSE must be called to have any effect. Stupid
typo just inserted references to the primitive in the effect position.

1991-10-22 Chris Hanson <[email protected]>

* edwin/dired.scm[1.118]:
* Fix code that extracts filename from dired line so that it handles
symbolic links correctly.

* Fix DIRED-REVERT-BUFFER to keep point on the same filename line if
possible.

* Fix DIRED-COPY-FILES: when a condition handler returns it means that
it has declined to handle the condition; if it handles the condition
it must throw.

* Repaginate.

* runtime/sfile.scm[14.5]:
Fix RENAME-FILE and DELETE-FILE so that they work on symbolic links
that point to nonexistent files.

* edwin/manual.scm[1.5]:
Improve NUKE-NROFF-BS a little more: speed up nuke loops, generalize
header pattern to handle hyphens within section number, simplify
nuking of blank lines at buffer start.

* compiler/back/lapgn1.scm[4.12]:
RTL comment should precede prefix instructions in output. That way
all instructions generated as a result of that RTL will appear
between that comment and the next.

* compiler/back/lapgn3.scm[4.6]:
To reduce code space, use ASSOC to compare literals rather than ASSV.
Since side-effects are not permitted on them, this should be harmless.

1991-10-21 Chris Hanson <[email protected]>

* edwin/argred.scm[1.32], edwin/comred.scm[1.88],
edwin/edwin.pkg[1.65]:
Change command reader to preserve message across argument commands.
Fix undo of self-insert characters.

* edwin/manual.scm[1.4]:
Various improvements to NUKE-NROFF-BS: speed up implementation,
particularly the removal of underlining and overstriking; remove
"Reformatting page" message if one appears; remove generic footers;
remove blank lines at end.

* edwin/prompt.scm[1.150]:
Make "m" key in Info mode default to the current menu item, if there is one.

1991-10-19 Chris Hanson <[email protected]>

* edwin/strpad.scm[1.6]:
Fix bug that caused Dired to print all of the "to be deleted" file
names on a single line, sending the newlines to the wrong port.

1991-10-18 Arthur Gleckler <[email protected]>

* edwin/info.scm[1.107], edwin/prompt.scm[1.149]:
Make "m" key in Info mode default to the current menu item, if there is one.

1991-10-18 Chris Hanson <[email protected]>

* compiler/machines/vax/make.scm[4.87]:
*** empty log message ***

* compiler/machines/vax/rules3.scm[4.9]:
Update to match revision 4.30 of "machines/bobcat/rules3.scm".

* compiler/machines/vax/compiler.sf[1.4]:
Don't generate full cref by default.

* compiler/machines/vax/compiler.pkg[1.8]:
Update to match revision 1.32 of "machines/bobcat/comp.pkg".

1991-10-17 Chris Hanson <[email protected]>

* microcode/flonum.c[9.36]:
BSD4.3 does not declare errno in <errno.h> -- unlike modern versions
of unix -- so must add extern declaration.

* microcode/unxutl/Attic/config[1.14]:
Fix missing "cmpint-vax.h".

1991-10-16 Chris Hanson <[email protected]>

* microcode/ux.h[1.16.1.3], microcode/ux.h[1.27]:
Recent versions of SunOS have POSIX signals.

1991-10-16 Guillermo J. Rozas <[email protected]>

* microcode/uxutil.c[1.4]:
Add a fflush to userio_confirm.

1991-10-15 Chris Hanson <[email protected]>

* microcode/m/Attic/sun3.h[1.4]:
Change sun 3 to use 68040 compiled-code format, so it can share
binaries with other 680x0 machines.

* microcode/uxsig.c[1.17]:
Modified by Max Hailperin <[email protected]> to support Schematik-style
interrupts if the environment variable USE_SCHEMATIK_STYLE_INTERRUPTS
is defined. What this means is that the following signals are
redefined to generate the corresponding keyboard interrupt (to avoid
the unreliable behavior of the the interactive interrupt handler):

signal keyboard interrupt
----- ------------------
SIGIOT control-x
SIGQUIT control-u
SIGHUP control-b

1991-10-14 Thanos Siapas <[email protected]>

* microcode/array.c[9.43]:
Fix two problems that manifested themselves on the nitpicky snakes:
- array-set! could cause an overflow exception when reading
un-initialized garbage. ARRAY-ALLOCATE now initializes all array
components to 0.
- array-set! could cause an underflow exception when storing a valid
double too small for a float. It now silently stores 0.

There are other problems left (overflow when storing a large
number), etc, but...

1991-10-13 Arthur Gleckler <[email protected]>

* edwin/linden.scm[1.122]:
Make "WITH-" expressions do the right thing. This should cause on
problems with forms like WITHOUT-INTERRUPTS, since I've included a
hyphen after "with".

1991-10-11 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.64], edwin/make.scm[3.60]:
*** empty log message ***

* edwin/process.scm[1.10]:
Be more careful about order of events in M-x shell-command-on-region
when the prefix arg is given. Make sure that the output replaces the
input atomically.

* edwin/edwin.pkg[1.63], edwin/modefs.scm[1.135],
edwin/process.scm[1.9]:
Implement M-x shell-command and M-x shell-command-on-region. Bind
them to M-! and M-| respectively.

* edwin/wincom.scm[1.108]:
Implement M-x compare-windows.

* edwin/tagutl.scm[1.43]:
In M-x visit-tags-table, if the user types something that looks like a
directory, then treat it as a directory. Previously it only did this
if the file was actually a directory.

* edwin/filcom.scm[1.160]:
Don't ignore pathname-version when generating buffer name. Ignoring
it is confusing on unix filenames. Perhaps this should be made
operating-system specific.

1991-10-10 Arthur Gleckler <[email protected]>

* edwin/rmail.scm[1.9]:
Make RMAIL update mode line when SHOW-MESSAGE is called and there are
no messages. This makes the mode line correct when all the messages
are deleted and expunged. Previously, the mode line stayed as it was
when RMAIL last displayed a message (before it was deleted).

1991-10-10 Chris Hanson <[email protected]>

* rcs/Attic/rcs.sf[1.5], rcs/rcs.pkg[1.4]:
Move to regular Scheme source directories.

* rcs/Attic/rcs.sf[1.4], rcs/rcs.pkg[1.3]:
Adjustments to support multiple binary directories.

1991-10-08 Mark Friedman <[email protected]>

* microcode/uxenv.c[1.6]:
Cached the current working directory to avoid needless calls to the
unix getcwd. It is put here, so that the call to get_wd() in options.c
will cause the cache to fill BEFORE the heap and constant spaces get
allocated. This way it is much more likely that the fork that getcwd
tries to do will be successful.

* microcode/option.c[1.10]:
Changed parse_path_string() to make sure that get_wd is called so that
the unix getcwd is called now, before it allocates heap space. This is
because getcwd forks off a new process and we want to do that before
the scheme process gets too big.

1991-10-04 Chris Hanson <[email protected]>

* edwin/info.scm[1.106]:
Improve performance of m command -- it was very slow on large menus.

* edwin/motcom.scm[1.44]:
Fix bug in M-x goto-char -- it was counting characters from the
narrowed start of the buffer, when it should have ignored narrowing.

* edwin/editor.scm[1.207]:
Guarantee that all buffer-local variables are unbound when user's init
file is loaded.

1991-10-03 Arthur Gleckler <[email protected]>

* edwin/telnet.scm[1.3]:
Make telnet accept port number after hostname.

1991-10-03 Brian A. LaMacchia <[email protected]>

* edwin/rmailsum.scm[1.15]:
Minor change to rmail-make-basic-summary-line so that dates of
the form "02 Oct 91" generate summary lines of the form " 2-Oct" not
"02-Oct".

1991-10-03 Chris Hanson <[email protected]>

* edwin/tximod.scm[1.16]:
INDENT-TABS-MODE should be off in Texinfo files.

* edwin/fill.scm[1.51]:
Fix fencepost error that sometimes caused extra newline to be inserted
at end of paragraph being filled.

* edwin/shell.scm[1.6]:
Add directory tracking for popd and pushd shell commands. Add new
command M-x shell-resync-dirs.

1991-10-02 Chris Hanson <[email protected]>

* edwin/process.scm[1.8]:
Don't unregister a closed channel -- it signals an error.

* edwin/telnet.scm[1.2]:
Eliminate duplicate definition of variable.

* edwin/tximod.scm[1.15]:
Add simple insertion commands to Texinfo mode.

* edwin/things.scm[1.81]:
Fix typo in COMPUTE-HORIZONTAL-SPACE.

* edwin/lincom.scm[1.115]:
Fix INDENT-FOR-TAB-COMMAND so it pays attention to the value of
INDENT-TABS-MODE.

1991-10-02 Guillermo J. Rozas <[email protected]>

* microcode/unxutl/Attic/makefile[1.13]:
Add phony target world redirecting to xmakefile.

* edwin/xterm.scm[1.23]:
Add a call to x-window-set-class-hint when a window is created,
so the window manager can tell what resource to use.

* microcode/prename.h[1.5], microcode/version.h[11.99],
microcode/x11base.c[1.26], microcode/x11graph.c[1.17]:
Rename x-graphics-set-class-hint to x-window-set-class-hint.

1991-10-01 Chris Hanson <[email protected]>

* sf/make.scm[4.21], sf/pardec.scm[4.4]:
Eliminate INTEGRATE-PRIMITIVE-PROCEDURES declaration.

* rcs/Attic/rcs.sf[1.3]:
Eliminate explicit load of CREF utility.

1991-09-25 Arthur Gleckler <[email protected]>

* edwin/replaz.scm[1.76]:
Make previous bug fix slightly faster.

* edwin/replaz.scm[1.75]:
Fix number-of-arguments bug calling RE-SEARCH-FORWARD from
COUNT-MATCHES command.

1991-09-25 Chris Hanson <[email protected]>

* microcode/Attic/posixtyp.h[1.4], microcode/pruxenv.c[1.4]:
Add `time_t' and change type of argument to `ctime' to be a pointer to
that type.

* microcode/obstack.h[1.4]:
Fix casting bug in __INT_TO_PTR.

1991-09-24 Brian A. LaMacchia <[email protected]>

* edwin/rmail.scm[1.8]:
Fixed a bug in parse-file-inboxes which used the wrong point as the end
of the search.

1991-09-24 Chris Hanson <[email protected]>

* microcode/default.h[9.37]:
Eliminate incorrect ";" from definition of Declare_Fixed_Objects.

1991-09-20 Arthur Gleckler <[email protected]>

* edwin/print.scm[1.2]:
Get rid of unreferenced variable NAME left over from translation from
Emacs Lisp lpr.el package.

* edwin/decls.scm[1.26], edwin/ed-ffi.scm[1.17], edwin/edwin.pkg[1.62],
edwin/loadef.scm[1.12]:
Add printer output commands LPR-BUFFER, PRINT-BUFFER, LPR-REGION, and
PRINT-REGION.

* edwin/dired.scm[1.117]:
Fix major mode description to reflect previous change:

Bind DIRED-FLAG-FILE-FOR-COPY to #\k instead of #\C. #\C is already
bound to DIRED-COMPRESS.

* edwin/dired.scm[1.116]:
Bind DIRED-FLAG-FILE-FOR-COPY to #\k instead of #\C. #\C is already
bound to DIRED-COMPRESS.

1991-09-20 Chris Hanson <[email protected]>

* cref/conpkg.scm[1.2], runtime/prgcop.scm[1.3]:
Eliminate use of INTEGRATE-PRIMITIVE-PROCEDURES declaration.

1991-09-19 Arthur Gleckler <[email protected]>

* edwin/comint.scm[1.9]:
Fix bug that makes completion on an empty filename break.

1991-09-18 Arthur Gleckler <[email protected]>

* edwin/filcom.scm[1.159]:
Make PROMPT-FOR-INPUT-TRUENAME accept files that are not directories.
The COPY-FILE, DELETE-FILE, and RENAME-FILE commands, which don't
work on directories anyway, will then refuse to accept directories as
arguments.

* edwin/manual.scm[1.3]:
Fix bug in MANUAL-ENTRY that prevents it understanding, e.g., tty(4).

Add removal of footers to NUKE-NROFF-BS.

* edwin/decls.scm[1.25], edwin/ed-ffi.scm[1.16], edwin/edwin.pkg[1.61],
edwin/loadef.scm[1.11], edwin/make.scm[3.59], edwin/manual.scm[1.2]:
Add autoload library to display UNIX manual pages.

1991-09-18 Chris Hanson <[email protected]>

* runtime/parse.scm[14.16], runtime/runtime.pkg[14.123],
runtime/unpars.scm[14.24], runtime/version.scm[14.140]:
Redefine #!optional and #!rest to be something distinct from symbols.

1991-09-17 Arthur Gleckler <[email protected]>

* edwin/replaz.scm[1.74]:
Fix typo.

* edwin/lincom.scm[1.114]:
Fix bug preventing INDENT-RIGIDLY from accepting multiplier
autoarguments.

* edwin/artdebug.scm[1.12]:
Get rid of unused procedure.

* edwin/artdebug.scm[1.11]:
Get rid of unreferenced variables.

* edwin/make.scm[3.58]:
Improve Edwin debugger:

Make RETURN-TO and RETURN-FROM evaluate the previous expression
instead of prompting for an expression to evaluate.

Provide evaluation commands that do and don't evaluate in the dynamic
state of the continuation. Commands that evaluate in the dynamic
state of the continuation will have their output appear wherever the
program would have sent its output had no error occured, and fluid
variables will be bound as they would appear in the program.
Commands that do not evaluate in the dynamic state of the
continuation will have their output appear in the debugger buffer,
and fluid variables will be bound as they would upon leaving the
continuation.

Rearrange some key bindings.

Improve handling of restarts.

* edwin/fileio.scm[1.102]:
Change NORMAL-MODE to evaluate variables in "Edwin Variables:" section
of a buffer in the (edwin) package.

1991-09-17 Brian A. LaMacchia <[email protected]>

* edwin/rmail.scm[1.7]:
Fixed a bug in rmail-reply. If there was no Subject: line in the
message being replied to, a (string-append "Re: " ()) occurred.

1991-09-16 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/config[1.13]:
Rearrange machine names.

1991-09-14 Arthur Gleckler <[email protected]>

* edwin/artdebug.scm[1.10]:
Make RETURN-TO and RETURN-FROM evaluate the previous expression
instead of prompting for an expression to evaluate.

Provide evaluation commands that do and don't evaluate in the dynamic
state of the continuation. Commands that evaluate in the dynamic
state of the continuation will have their output appear wherever the
program would have sent its output had no error occured, and fluid
variables will be bound as they would appear in the program.
Commands that do not evaluate in the dynamic state of the
continuation will have their output appear in the debugger buffer,
and fluid variables will be bound as they would upon leaving the
continuation.

Rearrange some key bindings.

Improve handling of restarts.

1991-09-12 Arthur Gleckler <[email protected]>

* edwin/edwin.pkg[1.60]:
Export debugger variable EDWIN-VARIABLE$DEBUGGER-CONFIRM-RETURN? .

* edwin/evlcom.scm[1.29]:
Make EVALUATE-REGION return the value of the last expression it
evaluates, or the value of UNSPECIFIC if there are no expressions.
It had been returning UNSPECIFIC always, but the Edwin Debugger needs
to be able to find out the value of an evaluation after going through
the standard evaluation mechanism (for the purposes of the

CONTINUATION-BROWSER-RETURN-FROM,
CONTINUATION-BROWSER-RETURN-TO, and
CONTINUATION-BROWSER-RETRY

debugger commands).

* sicp/compat.scm[1.6]:
Fix braino with last change.

* sicp/compat.scm[1.5], sicp/studen.scm[1.9]:
Make CEILING, FLOOR, ROUND, and TRUNCATE coerce their results to
exact numbers.

* edwin/edwin.pkg[1.59]:
Import DSTATE/EXPRESSION and INVALID-EXPRESSION? from (runtime
debugger) package to (edwin debugger) package.

1991-09-11 Arthur Gleckler <[email protected]>

* edwin/ed-ffi.scm[1.15]:
Fix alphabetical order of initialization filenames, because otherwise
it doesn't work.

* edwin/replaz.scm[1.73]:
Fix wrong number of arguments bug in LIST-MATCHING-LINES command.

1991-09-10 Brian A. LaMacchia <[email protected]>

* edwin/rmailsrt.scm[1.4]:
Removed extraneous debugging code.

* edwin/rmailsum.scm[1.14]:
Fixed bug in rmail-summary-{exit,quit} which appeared
when there was only one window open, and it was the summary window.

1991-09-10 Guillermo J. Rozas <[email protected]>

* microcode/bchmmg.c[9.64]:
dump_free_directly now returns the new value of free_buffer_bottom.
Improve error messages.

* microcode/bchgcc.h[9.40]:
Allow multiple inclusion.
dump_free_directly now returns the new value of free_buffer_bottom.

1991-09-09 Arthur Gleckler <[email protected]>

* edwin/tximod.scm[1.14]:
Fixed: #\C-q is not an ASCII char, but #\DC1 is.
MODIFY-SYNTAX-ENTRY! requires an ASCII char.

1991-09-09 Guillermo J. Rozas <[email protected]>

* compiler/documentation/porting.guide[1.23]:
Integrate Jmiller's latest changes:
- Fix typos.
- Describe GENERATE/QUOTATION-HEADER, etc. in more detail.
- Describe interrupt hack for printing return addresses.

* compiler/documentation/cmpint.txt[1.10]:
Fix spelling mistake.

* compiler/documentation/cmpint.txt[1.9]:
Add copyright notice and title.
Merge in Jmiller's latest comments, and add a picture.

* compiler/documentation/cmpaux.txt[1.3]:
Add copyright notice and title.

* compiler/documentation/cmpaux.txt[1.2]:
Fix typos.

1991-09-08 Guillermo J. Rozas <[email protected]>

* runtime/version.scm[14.139]:
- Remove without-stepping and stepping-off! from error.scm, but provide
hook/invoke-condition-handler so that they can be installed.

- Make gc statistics align properly.

* runtime/error.scm[14.25], runtime/runtime.pkg[14.122]:
Remove without-stepping and stepping-off!, but provide
hook/invoke-condition-handler so that they can be installed.

* runtime/gcnote.scm[14.8]:
Make gc statistics align.

1991-09-07 Guillermo J. Rozas <[email protected]>

* microcode/bchgcl.c[9.42], microcode/bchmmg.c[9.63],
microcode/bchpur.c[9.55]:
Change window size, etc., to be determined from command line
parameters.

* microcode/bchdmp.c[9.56]:
Change window size, etc., to be determined from command line
parameters.
Allocate the fixup buffer dynamically.

* microcode/bchgcc.h[9.39]:
Add more options for bchscheme.
Change window size, etc., to be determined from command line
parameters.

* microcode/option.h[1.4]:
Bump copyright date.

* microcode/option.c[1.9], microcode/option.h[1.3],
microcode/version.h[11.98]:
Add more options for bchscheme.

* runtime/gcnote.scm[14.7], runtime/gcstat.scm[14.4],
runtime/runtime.pkg[14.121], runtime/version.scm[14.138]:
Add real time GC statistics gathering and reporting.

* microcode/bchgcc.h[9.38], microcode/bchmmg.c[9.62],
microcode/bchpur.c[9.54]:
- Align GC buffers and Scheme spaces so that raw (character) devices can
be used for the gc heap.
- Limited recovery and better error reporting on system call errors.

1991-09-06 Brian A. LaMacchia <[email protected]>

* edwin/filcom.scm[1.158]:
Changed filename-complete-string so that matches which complete to
directory names act as though the completion is non-unique. Before, if
the only directory in /tmp beginning with "f" was "foo", then completing
on "/tmp/f" would complete to "/tmp/foo", and the if-unique proc. would
be invoked with "/tmp/foo/". Now, we invoke if-non-unique with
"/tmp/foo/".

1991-09-05 Mark Friedman <[email protected]>

* microcode/pruxfs.c[9.45], microcode/utabmd.scm[9.59],
microcode/ux.h[1.26]:
Added utime() to system calls and SET-FILE-TIMES! to primitives.

1991-09-04 Guillermo J. Rozas <[email protected]>

* compiler/documentation/porting.guide[1.22]:
Add a section on debugging, a section on the package system (by
Arthur), a section with suggestions on the order in which to attack
the tasks, and accommodate some changes for version 4.87.

1991-09-03 Arthur Gleckler <[email protected]>

* edwin/xterm.scm[1.22]:
CPH: Fix interrupt window in the timer interrupt routines that detect
control-g under X.

* edwin/edwin.pkg[1.58]:
Import WRITE-RESTARTS from the (RUNTIME DEBUGGER) package to the
(EDWIN DEBUGGER) package.

1991-09-02 Arthur Gleckler <[email protected]>

* edwin/dired.scm[1.115]:
Add copy-multiple-files capability to Dired mode:

C to mark files
y to copy marked files

1991-09-02 sybok <[email protected]>

* runtime/error.scm[14.24], runtime/error.scm[14.23],
runtime/error.scm[14.22], runtime/error.scm[14.21],
runtime/global.scm[14.32], runtime/runtime.pkg[14.120]:
Stepping stuff moved here from global.scm

* runtime/global.scm[14.31]:
*** empty log message ***

* runtime/global.scm[14.30], runtime/global.scm[14.29]:
The addition of "without-stepping" as it was changed the operation of
scheme so as to prevent my error handling code in the stepper from
working right. Thus, I've added a procedure, stepping-off!, which one
may call in the action thunk in order to cause without-stepping to
permanently terminate stepping.

1991-09-01 Guillermo J. Rozas <[email protected]>

* compiler/documentation/porting.guide[1.21]:
Provide a pointer to the MIPS pc-relative-address cache.
Add entries for lapopt.scm, compiler:intersperse-rtl-in-lap?, and
comp.{b,}{con,ldr} files.
Minor edits.

1991-08-31 Arthur Gleckler <[email protected]>

* microcode/uxsig.c[1.16], microcode/version.h[11.97]:
Make Scheme only able to suspend itself if both stdin and stdout are
tty's and the "-emacs" option has not been given.

1991-08-29 Arthur Gleckler <[email protected]>

* edwin/edwin.pkg[1.57], edwin/make.scm[3.57]:
Many improvements to the debugger, including cosmetic changes,
separation of reduction zero from the subproblem, addition of
RETURN-TO command, variables to choose window configuration and when
to automatically destroy the debugger buffer, and more-subproblems
notification on the modeline instead of in the buffer.

In addition, various bug fixes and more of Brian's RMAIL enhancements.

* edwin/artdebug.scm[1.9]:
Many improvements to the debugger, including cosmetic changes,
separation of reduction zero from the subproblem, addition of
RETURN-TO command, variables to choose window configuration and when
to automatically destroy the debugger buffer, and more-subproblems
notification on the modeline instead of in the buffer.

1991-08-29 Brian A. LaMacchia <[email protected]>

* runtime/version.scm[14.137]:
Incremented version number to reflect Arthur's changes to
the runtime system.

1991-08-29 sybok <[email protected]>

* runtime/runtime.pkg[14.119]:
*** empty log message ***

* runtime/runtime.pkg[14.118]:
New global variable, *pp-avoid-circularity?*, which
can be fluid-letted, has been created.

* runtime/pp.scm[14.21]:
The pretty-print has been changed to allow the
printing of circular structures in closed form.
Just fluid-let the variable *pp-avoid-circularity?*
to #t. (The default is #f.)

* runtime/pp.scm[14.20]:
The pretty-printer can now be made to print circular lists
without hanging up. Just fluid-let the variable
*pp-avoid-circularity?* to #t when needed. (It defaults
to false.)

1991-08-28 Arthur Gleckler <[email protected]>

* runtime/debug.scm[14.30]:
Make the debugger (and consequently the Edwin debugger also) be able
to return TO (in addition to return FROM, which was on #\Z) the
subproblem.

* edwin/evlcom.scm[1.28], edwin/modlin.scm[1.11]:
Provide a run light for Edwin, which shows "eval" when Edwin is
evaluating an expression provided by the user. This is accomplished
by setting the Edwin variable RUN-LIGHT to "eval" or false. The
default value of MODE-LINE-PROCESS will now cause ": eval" to appear
after the names of the minor modes on the mode line, e.g.:

(Scheme Narrow)

when no evaluation is running, and

(Scheme Narrow: eval)

when an evaluation is running. Because this requires a DYNAMIC-WIND
at every evaluation, Edwin variable ENABLE-RUN-LIGHT? can be used to
disable this feature.

* edwin/evlcom.scm[1.27], edwin/intmod.scm[1.39]:
Fix various bugs with evaluation commands:

Grab the transcript buffer (and whether it's enabled) BEFORE
beginning an evaluation, because, for example, the output from the
debugger Z command would go into a completely random place (window
and buffer).

Make sure that buffers for which the transcript buffer is not enabled
do not output values to the transcript buffer.

* edwin/regexp.scm[1.59]:
Correct bug that assumed that regular expression registers might
contain negative numbers, but never false.

1991-08-28 Brian A. LaMacchia <[email protected]>

* edwin/sendmail.scm[1.10]:
Added mail-header-function variable and modified mail-setup.

* edwin/rmailsum.scm[1.13]:
Changed functionality of #\space so that if the cursor is on a line in
the summary window which doesn't correspond to the message being shown
in the RMAIL window, warp the RMAIL window to show the right message.

* edwin/loadef.scm[1.10]:
Added telnet mode.

1991-08-28 Chris Hanson <[email protected]>

* edwin/info.scm[1.95.1.1]:
Implement change from revision 1.104.

* runtime/rgxcmp.scm[1.103.1.1]:
Implement change from revision 1.105.

* microcode/s/Attic/nextos.h[1.4]:
`-lg' not needed if `-g' is given during link.

1991-08-28 Guillermo J. Rozas <[email protected]>

* edwin/ed-ffi.scm[1.14], edwin/edwin.pkg[1.56]:
Add telnet to the list of files.

* edwin/decls.scm[1.24]:
Add telnet to the list of files to be processed.

* edwin/shell.scm[1.5]:
Prefix arg to shell command makes it create a new buffer and process.

* edwin/comint.scm[1.8]:
Fix bug in last edit.

* edwin/basic.scm[1.115]:
Separate the character reading part of quoted-insert from the command.
In this way, other commands (ie. telnet-quoted-send) can use the same
reading procedure.

* edwin/comint.scm[1.7]:
Allow new buffers to be created by passing a pair as the name argument
to make-comint.

* runtime/char.scm[14.3]:
Add common alternate names for characters, and comments indicating
mapping to ascii control codes.

* runtime/global.scm[14.28]:
Conditionalize to handle the case where there are no hooks.

1991-08-27 Brian A. LaMacchia <[email protected]>

* edwin/rmail.scm[1.6]:
Added variable rmail-reply-with-re and support in
rmail-reply for adding the Re: to subject lines in replies.

* edwin/edwin.pkg[1.55]:
Added variable rmail-reply-with-re to exports.

1991-08-27 Guillermo J. Rozas <[email protected]>

* runtime/parse.scm[14.15]:
Blew last edit.

* runtime/parse.scm[14.14], runtime/unpars.scm[14.23]:
Add C-style character specs inside strings.

* microcode/psbtobin.c[9.45]:
Prunning a fossil that had a typo and was causing some C compilers to
barf.

* microcode/sgraph_a.c[1.14]:
Fix wrong-number-of-arguments error in call to
arg_nonnegative_integer.

* runtime/conpar.scm[14.24], runtime/version.scm[14.136]:
Fix history/stack-parser phase errors.
Fix stack-frame->control-point bug introduced when previous bug was
fixed. Stacks examined by the debugger lost all stacklet framing,
making history offsets invalid.

* microcode/utils.c[9.50], microcode/version.h[11.96]:
Re-write Restore_History. The previous version was not keeping the
marks correctly, and was thus making restored histories appear empty.

* runtime/global.scm[14.27]:
Fix backwards conditionals in exit and %exit.

* runtime/global.scm[14.26]:
Fix bootstrap unassigned variable problem in without-stepping.

* runtime/error.scm[14.20]:
Make SF not complain about unused variables.

1991-08-26 Arthur Gleckler <[email protected]>

* runtime/global.scm[14.24]:
Make EXIT and %EXIT take an optional argument for Scheme to use as
UNIX status code.

* runtime/version.scm[14.135]:
Make Scheme explain why it cannot open a file.

Make EXIT and %EXIT take an optional argument for Scheme to use as
UNIX status code.

* microcode/debug.c[9.38], microcode/extern.h[9.41],
microcode/osscheme.h[1.4], microcode/prims.h[9.39],
microcode/sysprim.c[9.36], microcode/term.c[1.5],
microcode/uxsig.c[1.15], microcode/version.h[11.95]:
Add primitive EXIT-WITH-VALUE that takes an integer value as argument.

ANSIdecl-ify various primitive procedure utilities in prims.h.

* edwin/modefs.scm[1.134], edwin/schmod.scm[1.22]:
Move M-( and M-) from Scheme mode to fundamental mode.

1991-08-26 Brian A. LaMacchia <[email protected]>

* edwin/rmailsum.scm[1.12]:
Fixed bug in output and recipients-narrowed summaries.

* edwin/rmailsrt.scm[1.3]:
Fixed bug in mail-strip-quoted-headers

* edwin/rmailsum.scm[1.11]:
Added rmail-summary-by-recipients

* edwin/rmailsum.scm[1.10]:
Fixed bugs in summary-line generation and unseen/seen flags.

* edwin/rmailsum.scm[1.9]:
Added more functions to summary mode.

1991-08-26 Chris Hanson <[email protected]>

* runtime/uerror.scm[14.16.1.2], runtime/uerror.scm[14.16.1.1]:
Add arity declarations to obsolete primitives.

* runtime/make.scm[14.25.1.1], runtime/runtime.pkg[14.87.1.1]:
Eliminate subprocess support.

* runtime/uenvir.scm[14.24.1.1]:
Change to match pre-7.2 error system.

* runtime/arith.scm[1.16.1.1]:
Incorporate changes from revisions 1.19-21.

1991-08-26 Guillermo J. Rozas <[email protected]>

* compiler/fggen/fggen.scm[4.29]:
Introduced variables have better names.

1991-08-26 Mark Friedman <[email protected]>

* runtime/error.scm[14.19]:
Made sure that condition handlers are invoked with stepping turned
off. Someday this should be done for interrupts too.

* runtime/global.scm[14.25]:
Added WITHOUT-STEPPING to specify that a given thunk should not be
stepped.

1991-08-25 Brian A. LaMacchia <[email protected]>

* edwin/rmailsum.scm[1.8]:
Use execute-command instead of access...

* edwin/rmailsum.scm[1.7]:
Added more summary mode commands.

* edwin/edwin.pkg[1.54]:
Added more exports for RMAIL and RMAIL-Summary modes.

1991-08-24 Chris Hanson <[email protected]>

* microcode/version.h[11.59.1.2]:
Update for 7.1.3 release.

* microcode/Attic/config.h[9.59.1.3], microcode/Attic/config.h[9.63],
microcode/Attic/config.h[9.62], microcode/Attic/config.h[9.59.1.2],
microcode/ux.h[1.16.1.2], microcode/ux.h[1.25]:
Changes for apollo.

* microcode/uxsig.c[1.14]:
Fix typo.

* microcode/utils.c[9.47.1.1]:
Implement changes from revision 9.49.

* microcode/utabmd.scm[9.58]:
Change to match "ux.h".

* microcode/s/Attic/bsd4-3.h[1.3]:
Define CAST_FUNCTION_TO_INT_BUG.

* microcode/osscheme.h[1.3.1.1]:
Restore `arg_channel_old' for 7.1 release.

* microcode/ux.h[1.16.1.1]:
Implement changes from revision 1.24.

* microcode/utabmd.scm[9.53.1.1]:
Implement changes from revision 9.57.

* compiler/base/toplev.scm[4.35.1.1],
compiler/etc/xcbfdir.scm[1.7.1.1]:
Change to match pre-7.2 error system.

1991-08-23 Arthur Gleckler <[email protected]>

* runtime/error.scm[14.18], runtime/io.scm[14.26],
runtime/load.scm[14.27], runtime/pathnm.scm[14.13]:
Make Scheme explain why it cannot open a file.

* runtime/load.scm[14.26]:
Fix bug that caused init file to not be loaded if
GET-UNUSED-COMMAND-LINE returned no command line options.

* 6001/6001.sf[1.3]:
Use relative pathnames so handling 300's and 800's is identical.

* runtime/load.scm[14.25]:
Change command line processing to load the .scheme.init file (if there
is not a -no-init-file option) before processing all the other
runtime-system-processed command line options. This way, if an -eval
or -load option never returns, the .scheme.init file will have already
been processed.

* edwin/make.scm[3.56], edwin/modefs.scm[1.133],
edwin/wincom.scm[1.107]:
Add SCROLL-OTHER-WINDOW-DOWN command and bind

M-prior to SCROLL-OTHER-WINDOW-DOWN
M-next to SCROLL-OTHER-WINDOW

1991-08-23 Brian A. LaMacchia <[email protected]>

* edwin/rmailsum.scm[1.6]:
Fixed a bug in the generation of summary line.
Edwin always thought it had to build a new summary line.

1991-08-23 Chris Hanson <[email protected]>

* microcode/Attic/config.h[9.59.1.1]:
Implement change from revision 9.61.

* microcode/uxsock.c[1.2.1.1]:
Implement various changes from revision 1.5.

* microcode/unxutl/Attic/ymkfile[1.39.1.1]:
Implement various changes from revision 1.48.

* microcode/unxutl/Attic/ymkfile[1.48]:
Add `#undef vax' for Vax compilation.

* microcode/gpio.c[1.7.1.1]:
Eliminate INTERRUPTABLE_EXTENT around read and write calls.

* microcode/ux.c[1.5.1.1]:
Add BSD emulation of POSIX signal operations.

* microcode/uxio.c[1.7.1.1]:
Incorporate changes from revision 1.14.

* microcode/uxterm.c[1.10.1.1]:
Incorporate changes from revisions 1.14-17.

* microcode/bitstr.c[9.48]:
Fix typo in BIT-STRING-REF that caused incorrect error message.

* compiler/machines/mips/rules3.scm[1.9]:
Fix think-o in case for MOVE-FRAME-UP.

1991-08-22 Arthur Gleckler <[email protected]>

* 6001/6001.sf[1.2]:
Add make.scm to the list of files to syntax.

* 6001/make.scm[15.0]:
Give RCS the correct version number for the 6.001 (student) system.

* 6001/6001.cbf[1.2]:
Activate compiler type and range-checks.

* runtime/load.scm[14.24], runtime/pathnm.scm[14.12],
runtime/runtime.pkg[14.117], runtime/version.scm[14.134]:
(Arthur and Jinx:) Add special restarts for open-file errors.

1991-08-22 Chris Hanson <[email protected]>

* rcs/mklogs.scm[1.2]:
New directory organization.

* runtime/error.scm[14.17]:
(Arthur and Jinx:) Add special restarts for open-file errors.

* runtime/site.scm.unix[1.7]:
Add rewriting rules for sony.

1991-08-22 Guillermo J. Rozas <[email protected]>

* sf/butils.scm[4.4], sf/make.scm[4.20]:
Change compare-file-modification-times so that if foo.bin is linked to
foo.scm, it won't be sf'd, etc.

1991-08-21 Arthur Gleckler <[email protected]>

* edwin/edwin.pkg[1.53]:
Export sendmail variables MAIL-POSITION-ON-FIELD and
MAIL-POSITION-ON-CC-FIELD.

* edwin/edwin.pkg[1.52]:
Export RMAIL-REPLY command.

1991-08-21 Chris Hanson <[email protected]>

* compiler/etc/comfiles.scm[1.2]:
Update for new directory structure.

* compiler/machines/mips/rules3.scm[1.8]:
Fix bugs in rules for generating closures: these rules were assigning
to the assembler temporary, then executing an instruction that
sometimes used the temporary.

* compiler/machines/mips/instr1.scm[1.4]:
Fix several bugs in the rules for instructions with immediate
operands.

1991-08-21 Guillermo J. Rozas <[email protected]>

* runtime/pp.scm[14.19]:
Make fields of pretty-printer-highlight structure mutable.

1991-08-20 Arthur Gleckler <[email protected]>

* runtime/load.scm[14.23]:
Add the following command-line options to Scheme. They are processed
before the init file (typically called ".scheme.init") is loaded:

Option Keyword Effect
-------------- ------

-eval EVALuate the expressions following the keyword
in the USER-INITIAL-ENVIRONMENT, up to (but
not including) the next option that starts
with a hyphen.

-load LOAD the files following the keyword, up to
(but not including) the next option that
starts with a hyphen.

-no-init-file Do not load the init file. Name chosen to be
consistent with Emacs.

1991-08-18 Chris Hanson <[email protected]>

* runtime/hash.scm[14.4]:
Fix typo. Use typed errors.

1991-08-18 Guillermo J. Rozas <[email protected]>

* compiler/machines/mips/rulfix.scm[1.3]:
Replace 6 with scheme-type-width in do-multiply. Fix a comment.

1991-08-17 Chris Hanson <[email protected]>

* compiler/machines/mips/lapgen.scm[1.7]:
Fix typo in `REGISTER->MEMORY-TRANSFER' that caused weird assembler
errors when the floating-point register set spilled.

1991-08-17 Guillermo J. Rozas <[email protected]>

* runtime/pp.scm[14.18]:
Fix unbound variable problem and make tables print a little prettier.

1991-08-16 Arthur Gleckler <[email protected]>

* edwin/regops.scm[1.84]:
Make REGION-CLIP! guarantee that the point is in the narrowed region.

* edwin/bufout.scm[1.6], edwin/edwin.pkg[1.51]:
Add DEFAULT-WINDOW-WIDTH, the value returned by the X-SIZE operation
on buffer output ports when the buffer does not appear in any window.

1991-08-16 Guillermo J. Rozas <[email protected]>

* runtime/pp.scm[14.17]:
Fix counting bug in maybe-print-table.

* runtime/runtime.pkg[14.116]:
Rename (and invert) *pp-really-pretty?* to *pp-save-vertical-space?*

* runtime/pp.scm[14.16]:
Fix bug in maybe-print-table. It was ignoring depth and trying to
tabulate less than 4 elements.
Rename (and invert) *pp-really-pretty?* to *pp-save-vertical-space?*

* runtime/version.scm[14.133]:
New (runtime hash) module supports multiple hash tables.

* runtime/runtime.pkg[14.115]:
Export hash-table/make and object-hashed? from (runtime hash).

* runtime/hash.scm[14.3]:
Multiple hash tables supported.

* runtime/pp.scm[14.15]:
Fix typo.

* runtime/pp.scm[14.14], runtime/version.scm[14.132]:
Update pretty printer to include highlight objects, tabulation of data
lists, better user control by means of exported variables, and more
consistent modes (data versus code).

* runtime/runtime.pkg[14.114]:
Updated pretty printer exports control variables.

1991-08-15 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/ymkfile[1.47]:
Add dependency of missing.c on config.h.

* compiler/Attic/Makefile[1.8]:
Change to match new directory configuration.

1991-08-15 Gerald Jay Sussman <[email protected]>

* microcode/Attic/config.h[9.61]:
Sony NEWS OS has frexp, floor, modf.

1991-08-15 Guillermo J. Rozas <[email protected]>

* runtime/site.scm.unix[1.6]:
Fix rewriting paths to accomodate new directory structure.

1991-08-14 Chris Hanson <[email protected]>

* compiler/machines/mips/machin.scm[1.4]:
Add fixnum bitwise-logical operations to list of primitives that
cannot be open-coded on the MIPS.

1991-08-14 Guillermo J. Rozas <[email protected]>

* runtime/version.scm[14.131], sf/gconst.scm[4.12], sf/make.scm[4.19]:
Add FLOATING-VECTOR-xxx primitives.

* microcode/dfloat.c[1.2]:
Add FLOATING-VECTOR-LENGTH.

* compiler/documentation/porting.guide[1.20]:
- Incorporate some reader comments.

- Mention new MIPS OVERFLOW-TEST solution.

1991-08-13 Chris Hanson <[email protected]>

* edwin/make.scm[3.55]:
*** empty log message ***

* edwin/rmailsrt.scm[1.2], edwin/rmailsum.scm[1.5]:
Eliminate unused and unbound variables. Repaginate.

* edwin/edwin.pkg[1.50], microcode/breakup.c[9.23]:
Fix typo.

1991-08-13 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/hppa.m4[1.18], microcode/cmpintmd/hppa.h[1.24]:
Change hppa_utility_table to be allocated dynamically rather than
statically.

* microcode/m/Attic/hp9k800.h[1.6]:
Add options for 8.01 and 8.05.

* microcode/cmpauxmd/hppa.m4[1.17], microcode/cmpint.c[1.38],
microcode/cmpintmd/hppa.h[1.23], microcode/version.h[11.94]:
Work around HP-UX 8.0's format for C procedure pointers (closures).

* microcode/pruxenv.c[1.3]:
Make ANSI declaration use GNU EXFUN macro to allow non-ANSI compilers
to handle it.

1991-08-13 newts <[email protected]>

* edwin/macros.scm[1.53]:
Change command, variable, and mode definition macros to make them
expand into simple Scheme definitions.

1991-08-12 Arthur Gleckler <[email protected]>

* edwin/dired.scm[1.114]:
Dired was unable to delete files appearing on the first line of its buffer.

1991-08-12 Chris Hanson <[email protected]>

* compiler/machines/mips/rulfix.scm[1.2]:
Rewrite fixnum overflow tests to produce significantly better code.
Now fixnum operations with overflow do SET-CURRENT-BRANCHES!
themselves, and OVERFLOW-TEST does nothing.

* compiler/machines/mips/lapgen.scm[1.6]:
Fix various bugs in generation of LAP for addition and loading of
constants.

* compiler/machines/mips/dassm2.scm[1.3],
compiler/machines/mips/dassm3.scm[1.3]:
Change disassembly of EXTERNAL-LABEL to use (@PCR label) where
possible.

1991-08-12 Guillermo J. Rozas <[email protected]>

* runtime/sdata.scm[14.2]:
Fix definitions of &triple-set-second! and &triple-set-third! .
They were clobbering the wrong cxr!

1991-08-12 Mark Friedman <[email protected]>

* microcode/pruxenv.c[1.2], microcode/ux.h[1.24]:
Added primitives HOSTNAME and FULL-HOSTNAME to get the short host name
and the full host name with domain.

1991-08-11 Guillermo J. Rozas <[email protected]>

* runtime/conpar.scm[14.23], runtime/cpoint.scm[14.4],
runtime/version.scm[14.130]:
Fix two history-related bugs:

- previous-history-offsets were being incorrectly computed in
make-intermediate-state.

- make-control-point was adding a new (join-stacklets) frame even when
there was one, therefore invalidating all previous-history-offsets
contained in the stream. This latter bug was "fixed" by changing
control-point/element-stream to not include the last (join-stacklets)
frame.

1991-08-09 Arthur Gleckler <[email protected]>

* edwin/edwin.pkg[1.49]:
Export Edwin variables to the (edwin) package:

X-SCREEN-NAME-FORMAT
X-SCREEN-ICON-NAME-FORMAT
X-SCREEN-ICON-NAME-LENGTH

1991-08-08 Arthur Gleckler <[email protected]>

* edwin/modefs.scm[1.132], edwin/wincom.scm[1.106]:
Make most HP keyboard functions do something reasonable (i.e. related
to their names).

1991-08-08 Guillermo J. Rozas <[email protected]>

* runtime/histry.scm[14.5], runtime/version.scm[14.129]:
Make dummy reduction be recognizable as such, rather than spuriously
show up.

1991-08-07 Arthur Gleckler <[email protected]>

* edwin/dired.scm[1.113]:
Fix FILL-DIRED-BUFFER! bug that caused "~" command (and probably
others) to fail.

1991-08-06 Arthur Gleckler <[email protected]>

* edwin/modefs.scm[1.131]:
Fix joke brainos.

* microcode/uxtrap.c[1.15], microcode/version.h[11.93]:
Hardware traps now preserve the history when the trap is known to have
occured in compiled code, since the history is perfectly well defined.

* runtime/version.scm[14.128]:
Debugger improvements to show history for compiled code frames that
have it.

* runtime/conpar.scm[14.22]:
The last compiled-return-address frame before an interpreter frame has
valid history.

* runtime/histry.scm[14.4]:
Use with-history-disabled in with-new-history so that new evaluations
are guaranteed to have at least one interpreter return frame, thus
making the continuation parser work better in the presence of compiled
code.

with-new-history no longer tail-recurses into the thunk.

* runtime/debug.scm[14.29]:
Debugger now treats compiled-return-address frames with history
specially: The stack information for each is printed as if it had
its own reduction since the first reduction corresponds to the
interpreted expression that tail-recursed into the compiled code.

* edwin/modefs.scm[1.130], edwin/motcom.scm[1.43]:
Jokes.

* edwin/calias.scm[1.11], edwin/iserch.scm[1.15],
edwin/prompt.scm[1.148], edwin/replaz.scm[1.72]:
Fix unbound variable error from special key changes.

* edwin/argred.scm[1.31], edwin/basic.scm[1.114],
edwin/c-mode.scm[1.47], edwin/calias.scm[1.10],
edwin/comred.scm[1.87], edwin/comtab.scm[1.60],
edwin/decls.scm[1.22], edwin/dired.scm[1.112],
edwin/ed-ffi.scm[1.12], edwin/edwin.ldr[1.17], edwin/edwin.pkg[1.47],
edwin/hlpcom.scm[1.100], edwin/info.scm[1.105],
edwin/input.scm[1.90], edwin/iserch.scm[1.14],
edwin/keymap.scm[1.10], edwin/kmacro.scm[1.34],
edwin/lspcom.scm[1.154], edwin/make.scm[3.54],
edwin/modefs.scm[1.129], edwin/motcom.scm[1.42],
edwin/prompt.scm[1.147], edwin/regcom.scm[1.20],
edwin/replaz.scm[1.71], edwin/sercom.scm[1.60],
edwin/wincom.scm[1.105], edwin/xterm.scm[1.21]:
Add support for special keys, including function keys and arrow keys,
with bucky bits.

A key is either a CHAR or a SPECIAL-KEY. SPECIAL-KEYs can be compared
using EQ?.

Support all the keys named in /usr/include/X11/keysym.h, using the
names X gives them (with few exceptions).

Rename most procedures for dealing with keys from "-char" to "-key" to
prevent confusion.

Requires microcode 11.91 or later because of changes to the X keyboard
event structure.

* microcode/purutl.c[9.42]:
Fix purification bug on Snakes; floating-point alignment was confusing
the purifier.

* microcode/version.h[11.92], microcode/x11base.c[1.25]:
Upgrade microcode to pass X keysyms in keyboard events through to Edwin.

1991-08-06 Brian A. LaMacchia <[email protected]>

* edwin/rmailsum.scm[1.4]:
Updates for autoloading.

* edwin/edwin.ldr[1.18]:
Added RMAIL sort mode.

* edwin/decls.scm[1.23], edwin/ed-ffi.scm[1.13], edwin/edwin.pkg[1.48]:
Added RMAIL Summary mode and RMAIL sort mode.

* edwin/loadef.scm[1.9]:
Added autoloads for RMAIL Summary mode.

* edwin/rmailsum.scm[1.3]:
It works! (well, at least the basic stuff)

* edwin/rmailsum.scm[1.2]:
*** empty log message ***

* runtime/version.scm[14.127]:
Fixed bug in sdata.scm...thanks sybok

1991-08-05 Mark Friedman <[email protected]>

* microcode/Attic/config.h[9.60]:
Compiling with the stepper hooks.

1991-08-01 Brian A. LaMacchia <[email protected]>

* edwin/make.scm[3.53]:
*** empty log message ***

* edwin/edwin.pkg[1.46]:
Export edwin-variable$mail-setup-hook

1991-08-01 Guillermo J. Rozas <[email protected]>

* edwin/editor.scm[1.206]:
Make edit and edwin take arguments and pass them along to
create-editor.

1991-07-31 Arthur Gleckler <[email protected]>

* edwin/lspcom.scm[1.153], edwin/schmod.scm[1.21]:
Add INSERT-PARENTHESES and MOVE-PAST-CLOSE-AND-REINDENT and bind them to keys.

1991-07-31 Guillermo J. Rozas <[email protected]>

* microcode/uxenv.c[1.5]:
Fix UX_times problem in OS_real_time_clock.

1991-07-30 Guillermo J. Rozas <[email protected]>

* microcode/uxenv.c[1.2.1.1]:
Fix ultrix problem in release 7.1. times can legally return negative
numbers other than -1.

1991-07-26 Arthur Gleckler <[email protected]>

* edwin/xterm.scm[1.20], microcode/x11base.c[1.24]:
Enable super, hyper, and top modifier keys under X.

1991-07-26 Brian A. LaMacchia <[email protected]>

* edwin/xterm.scm[1.19]:
Added variable x-display-name, which defaults to false.
fluid-let'ing x-display-name to a string (like "freeside:0")
before invoking edwin allows edwin to pop up an X window on
non-local displays.

1991-07-25 Chris Hanson <[email protected]>

* compiler/machines/spectrum/machin.scm[4.23]:
(Jinx) implemented open-coding for INTEGER-MULTIPLY, INTEGER-DIVIDE,
and INTEGER-REMAINDER.

* compiler/machines/mips/rules3.scm[1.7]:
Eliminate two uses of @PCO branches. Repaginate.

* compiler/machines/mips/instr1.scm[1.3],
compiler/machines/mips/instr2a.scm[1.4],
compiler/machines/mips/instr2b.scm[1.3],
compiler/machines/mips/instr3.scm[1.2],
compiler/machines/mips/lapgen.scm[1.5],
compiler/machines/mips/rules1.scm[1.4],
compiler/machines/mips/rules3.scm[1.6],
compiler/machines/mips/rulflo.scm[1.5]:
Change LAP generator to use new PC-relative address cacheing
mechanism. Also eliminate generation of PC-RELATIVE-OFFSET pseudo
instruction, and of certain instructions that would make analysis of
the LAP difficult. Change LAP to conform more closely to the MIPS
spec, e.g. change "FADD DOUBLE" to "ADD.D". Implement simple LAP
optimizer that eliminates some NOPs appearing in load delay slots.

* compiler/base/toplev.scm[4.35],
compiler/machines/bobcat/compiler.pkg[1.33],
compiler/machines/bobcat/decls.scm[4.28],
compiler/machines/bobcat/make.scm-68020[4.87],
compiler/machines/bobcat/make.scm-68040[4.87],
compiler/machines/mips/compiler.pkg[1.4],
compiler/machines/mips/decls.scm[1.3],
compiler/machines/mips/make.scm-big[4.87],
compiler/machines/mips/make.scm-little[4.87],
compiler/machines/spectrum/compiler.pkg[1.32],
compiler/machines/spectrum/decls.scm[4.28],
compiler/machines/spectrum/make.scm[4.87],
compiler/machines/vax/compiler.pkg[1.7],
compiler/machines/vax/decls.scm[4.6]:
Install machine-dependent file and procedure to perform optimization
of LAP between linearization and assembly. This is for instruction
scheduling and peephole optimization.

* compiler/back/mermap.scm[1.4], compiler/back/regmap.scm[4.11]:
Implement support to permit cacheing of PC-relative addresses in
registers. This is important on RISC machines where it is often
expensive to compute a PC-relative address.

* runtime/runtime.pkg[14.113]:
Addition of operations and procedures to manipulate image and colormap
datatypes. Requires microcode version 11.89 or later.

1991-07-24 Arthur Gleckler <[email protected]>

* microcode/version.h[11.90], microcode/x11graph.c[1.16]:
Add support for setting the resource class and name of X windows.

1991-07-24 Chris Hanson <[email protected]>

* microcode/const.h[9.39]:
Fix typo in previous change.

* microcode/unxutl/Attic/makefile[1.12]:
Add .PHONY targets to make targets like "scheme" work right.

* microcode/uxenv.c[1.4]:
Work around bug in Ultrix: the `times' system call sometimes returns
negative numbers (other than -1) when there are no errors. The
STD_VOID_SYSTEM_CALL macro checks for result <0, so perform explicit
check for result =-1.

1991-07-24 Guillermo J. Rozas <[email protected]>

* microcode/uxsig.c[1.13], microcode/uxtrap.c[1.14],
microcode/uxtrap.h[1.11], microcode/uxutil.c[1.3],
microcode/version.h[11.91]:
Changes to make sure that Scheme does not get into an infinite loop on
input when a trap occurs or its tty disappears.

1991-07-23 Chris Hanson <[email protected]>

* runtime/version.scm[14.126]:
*** empty log message ***

* runtime/graphics.scm[1.4]:
Add a 1D property table to each graphics device.

* runtime/x11graph.scm[1.10]:
Addition of operations and procedures to manipulate image and colormap
datatypes. Requires microcode version 11.89 or later.

* microcode/version.h[11.89], microcode/x11.h[1.10],
microcode/x11base.c[1.23], microcode/x11color.c[1.3],
microcode/x11graph.c[1.15]:
Editing of X11 image, visual, and colormap support to regularize
interface, provide better type and error checking, and simplify
handling of colormaps by associating a display object with them.

Requires runtime 14.126 or later.

1991-07-21 Chris Hanson <[email protected]>

* compiler/machines/mips/instr2b.scm[1.2]:
Fix typo in load/store instruction rules.

* runtime/uenvir.scm[14.24]:
ENVIRONMENT-HAS-PARENT? must return one of three values: #F, #T, or
'SIMULATED. In the case of compiled closures, it was returning
something else, causing the debugging tools to think that these
procedures had no closing frame.

1991-07-19 Arthur Gleckler <[email protected]>

* edwin/artdebug.scm[1.7], edwin/edwin.pkg[1.44],
edwin/evlcom.scm[1.26], edwin/make.scm[3.52]:
New Edwin debugger (commissioned for 6.001)

1991-07-19 Chris Hanson <[email protected]>

* runtime/unxdir.scm[14.7]:
Fix typo in last change.

* edwin/edwin.pkg[1.45]:
Eliminate now-unused variable.

* edwin/artdebug.scm[1.8]:
Eliminate spurious compiler warning.
Sharpen up documentation strings of variables.
Fix pagination.

* sf/make.scm[4.18], sf/reduct.scm[4.2]:
Fix bugs in reduction declarations.

1991-07-18 Arthur Gleckler <[email protected]>

* runtime/error.scm[14.16]:
Fix the pluralization of "argument" in the WRONG-NUMBER-OF-ARGUMENTS error.

1991-07-18 Mark Friedman <[email protected]>

* microcode/const.h[9.38], microcode/interp.c[9.63],
microcode/interp.h[9.34], microcode/step.c[9.29]:
Changed support for stepper hooks. Return hooks now work more or less
like the apply and eval hooks.

1991-07-17 Chris Hanson <[email protected]>

* runtime/unxdir.scm[14.6], runtime/unxdir.scm[14.5]:
Fix bug in DIRECTORY-READ: if the argument has any name component,
don't default other name components to 'WILD.

1991-07-16 Arthur Gleckler <[email protected]>

* runtime/version.scm[14.125]:
Hooks for running before restarts and debugger returns.

Debugger formatting improvements.

* runtime/debug.scm[14.28]:
Add a hook to run before doing a return command from the debugger.
Separate the printing of the components of subproblems and reductions
so they can be printed separately.

1991-07-16 Chris Hanson <[email protected]>

* edwin/paths.scm[1.10]:
Guarantee error if unable to find one of Edwin's system directories.

* compiler/machines/mips/rulflo.scm[1.4]:
Eliminate redundant instructions in flonum-cons rule.

1991-07-15 Arthur Gleckler <[email protected]>

* runtime/error.scm[14.15]:
Add a hook in INVOKE-RESTART-INTERACTIVELY between any interactive
prompting and the invocation of the restart effector.

* runtime/dbgutl.scm[14.13]:
Trivial formatting change.

1991-07-15 Chris Hanson <[email protected]>

* runtime/record.scm[1.10]:
Fix error message generated when object passed to a record accessor or
updater is a record of the wrong type.

1991-07-13 Chris Hanson <[email protected]>

* microcode/flonum.c[9.35]:
Catch error returns in calls to transcendental functions.

1991-07-12 Chris Hanson <[email protected]>

* runtime/version.scm[14.124]:
*** empty log message ***

* microcode/version.h[11.88]:
Various fixes to floating-point trap code.

* microcode/uxtrap.h[1.10]:
Add code to handle siginfo structure that is zero.

* microcode/uxtrap.c[1.13]:
Forgot to step loop counter in last change to find_signal_code_name.
Also add code to handle siginfo structure that is zero.

* microcode/cmpauxmd/mips.m4[1.4], microcode/cmpint.c[1.37],
microcode/cmpintmd/mips.h[1.9]:
Add initialization code to enable the IEEE traps.

* compiler/machines/mips/rulflo.scm[1.3]:
Change rule for predicates that compare against implicit zero.
Previously, these predicates were generating a zero by subtracting a
register from itself. This doesn't work if the register contains an
infinity or a NAN -- in that case it traps. The new code generates a
zero by explicitly zeroing the register.

* runtime/savres.scm[14.21], runtime/savres.scm[14.20]:
Change DISK-RESTORE to try explicit filename first before tacking on
".com".

1991-07-11 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/config[1.12]:
Add entry for HP 9000 series 400.

* microcode/cmpauxmd/hppa.m4[1.16], microcode/cmpintmd/hppa.h[1.22]:
Add initialization code that enables most of the IEEE floating-point
exceptions.

* microcode/version.h[11.87]:
*** empty log message ***

* microcode/x11color.c[1.2]:
Rewrite X-STORE-COLORS. Previously it had unpredictable effect since
the `flags' component of the XColor structures was not being
initialized.

* microcode/uxtrap.c[1.12], microcode/uxtrap.h[1.9]:
Change find_signal_code_name to be more customizable. Implement
customization that determines correct names for floating-point
exceptions on the HP Precision Architecture.

* microcode/uxtrap.h[1.8]:
Fix typo in HP 9000 series 800 trap codes.

1991-07-10 Chris Hanson <[email protected]>

* runtime/arith.scm[1.21]:
Handle (/ 0 X) specially to guarantee that result is exact zero even
when X is inexact.

1991-07-09 Chris Hanson <[email protected]>

* edwin/screen.scm[1.94]:
Fix bug in which CLEAR-RECTANGLE would erase the highlighting on mode
lines that were not full-screen width.

* edwin/comwin.scm[1.142]:
Fix SIGSEGV that occurred when deleting the selected window in
complicated combinations of windows.

* runtime/output.scm[14.10], runtime/runtime.pkg[14.112]:
Add FRESH-LINE procedure.

* edwin/make.scm[3.51]:
*** empty log message ***

1991-07-08 Chris Hanson <[email protected]>

* edwin/edwin.pkg[1.43]:
Import hook/repl-eval from the runtime system.

* edwin/bufwfs.scm[1.15]:
Fix bug that caused SIGSEGV or SIGBUS to happen when the line at the
bottom of the window had a continuation line that extended past the
bottom.

* microcode/x11graph.c[1.14]:
Fix typo in documentation string.

1991-07-06 Chris Hanson <[email protected]>

* microcode/wind.c[1.4]:
In `dstack_set_position', must unblock signals while the protector
runs, and re-block afterwards, in case the protector does something to
change the signal mask. Otherwise, the change to the signal mask will
be undone when the final call to unblock_signals is performed.

1991-07-05 Chris Hanson <[email protected]>

* microcode/version.h[11.86]:
Changes to fix `dstack_set_position' bug.

* microcode/uxsig.c[1.12]:
Change to use new `dstack_alloc_and_protect' procedure.

* microcode/intext.c[1.3], microcode/intext.h[1.2]:
Eliminate use of CATCH and THROW macros. Use position in `struct
interruptable_extent' to set the dstack after a throw. Guarantee that
signal mask is restored last when interrupting.

* microcode/dstack.h[1.2], microcode/wind.c[1.3]:
Implement new procedure `dstack_alloc_and_protect' that combines
`dstack_alloc' and `dstack_protect', saving space and improving
atomicity. Eliminate CATCH and THROW macros.

* edwin/evlcom.scm[1.25]:
Change evaluation commands to correctly bind current and repl output
ports to capture all output. Do this regardless of the value of
`enable-transcript-buffer'. Also change the evaluation commands to
use `hook/repl-eval' just like repls and `load'.

1991-07-03 Arthur Gleckler <[email protected]>

* microcode/uxsock.c[1.5]:
Handle interrupted UX_accept system call by retrying rather than
passing the error along to Scheme.

1991-07-03 Chris Hanson <[email protected]>

* microcode/psbmap.h[9.33], microcode/psbtobin.c[9.44]:
Psbtobin was underestimating the amount of space needed on machines
that have floating-point alignment constraints. Now it will
overestimate, but this is not harmful.

1991-07-03 Mark Friedman <[email protected]>

* microcode/x11graph.c[1.13]:
The cpp on altdorf seems to have problems with multiline string
constants as macro arguments.

* microcode/x11graph.c[1.12]:
Added X-BYTES-INTO-IMAGE which takes a vector-8b and an image and
sticks the bytes from the vector into the image.

1991-07-02 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.111]:
Change hardware traps to be errors. Eliminate MICROCODE-ASYNCHRONOUS
condition class.

* edwin/modwin.scm[1.38]:
Fix bug that left-justified the modeline for a non-left-justified
window.

* microcode/uxterm.c[1.17]:
Don't treat EACCES specially when opening pty -- this can happen and
in that case the pty should be ignored.

* microcode/unxutl/Attic/y300.lcl[1.18],
microcode/unxutl/Attic/ymkfile[1.46]:
Add Bintopsb and bchscheme to "all" rule.

* microcode/unxutl/Attic/ymkfile[1.45], microcode/version.h[11.85],
microcode/x11.h[1.9], microcode/x11base.c[1.22],
microcode/x11graph.c[1.11]:
Add JMiller's new X graphics primitives.

* microcode/uxsig.c[1.11], microcode/wind.c[1.2]:
Block all signals while performing dstack allocation and deallocation.

1991-06-26 Chris Hanson <[email protected]>

* runtime/dbgutl.scm[14.12]:
Use upper case to highlight procedure and special form names in
environment summary.

1991-06-24 Chris Hanson <[email protected]>

* runtime/uerror.scm[14.27]:
Change hardware traps to be errors. Eliminate MICROCODE-ASYNCHRONOUS
condition class.

* compiler/Attic/Makefile[1.7]:
Change tags table to include entries from all machine-specific
directories.

1991-06-24 Guillermo J. Rozas <[email protected]>

* runtime/runtime.pkg[14.110]:
Export intern-soft.

* runtime/scode.scm[14.12]:
Define find-symbol and intern-soft.

1991-06-22 Chris Hanson <[email protected]>

* microcode/interp.c[9.62], microcode/intext.c[1.2],
microcode/uxsig.c[1.10], microcode/version.h[11.84]:
Change `abort_to_interpreter' and `exit_interruptable_extent' to
restore the signal mask. This should have been done using `sigsetjmp'
and `siglongjmp', but a bug in Sony NEWS OS generates a segmentation
violation when those functions are used this way. The chosen solution
works, and is slightly more portable.

1991-06-21 Chris Hanson <[email protected]>

* microcode/gcloop.c[9.37]:
Change GC traps to do >= comparisons rather than ==.

* compiler/machines/mips/compiler.sf-big[1.2],
compiler/machines/mips/compiler.sf-little[1.2],
compiler/machines/mips/make.scm-big[4.86],
compiler/machines/mips/make.scm-little[4.86]:
Changes to configure for either little- or big-endian machines.

1991-06-21 Gerald Jay Sussman <[email protected]>

* microcode/x11graph.c[1.10]:
Implement primitives to map event coordinates to graphics window
coordinates.

1991-06-20 Chris Hanson <[email protected]>

* microcode/gcloop.c[9.36]:
Changes for sony mips.

1991-06-18 Arthur Gleckler <[email protected]>

* edwin/bufout.scm[1.5], edwin/make.scm[3.50], edwin/winout.scm[1.6]:
Make Edwin buffer and window output ports correctly support the
operation X-SIZE.

X-SIZE on a buffer output port now returns the character width of the
most narrow window showing the port's buffer, or 79 if no window shows
the buffer.

X-SIZE on a window output port now returns the character width of the
window.

1991-06-17 Chris Hanson <[email protected]>

* compiler/machines/vax/lapgen.scm[4.11]:
Fix incorrect uses of `define-export'.

* compiler/machines/mips/assmd.scm[1.2],
compiler/machines/mips/compiler.pkg[1.3],
compiler/machines/mips/dassm2.scm[1.2],
compiler/machines/mips/dassm3.scm[1.2],
compiler/machines/mips/insmac.scm[1.2],
compiler/machines/mips/instr1.scm[1.2],
compiler/machines/mips/instr2a.scm[1.3],
compiler/machines/mips/lapgen.scm[1.4],
compiler/machines/mips/machin.scm[1.3],
compiler/machines/mips/make.scm-big[4.85],
compiler/machines/mips/make.scm-little[4.85],
compiler/machines/mips/rules1.scm[1.3],
compiler/machines/mips/rules3.scm[1.5]:
Changes to get compiler running on big-endian MIPS.

1991-06-15 Chris Hanson <[email protected]>

* microcode/Attic/oscond.h[1.5], microcode/cmpintmd/mips.h[1.8],
microcode/gccode.h[9.43], microcode/unxutl/Attic/config[1.11],
microcode/unxutl/Attic/ymkfile[1.44], microcode/ux.h[1.23],
microcode/uxctty.c[1.8], microcode/uxfile.c[1.6],
microcode/uxproc.c[1.11], microcode/uxsig.c[1.9],
microcode/uxsock.c[1.4], microcode/uxterm.c[1.16],
microcode/uxterm.c[1.15], microcode/uxtrap.c[1.11],
microcode/uxtrap.h[1.7]:
Changes for sony news laptop running news os 5.01.

* runtime/unpars.scm[14.22]:
Fix typo in previous change.

1991-06-14 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.109]:
Export `debugging-info/unknown-expression?' for use by debugger.

* microcode/version.h[11.83]:
Changes for sony news laptop running news os 5.01.

* compiler/fggen/fggen.scm[4.28], compiler/rtlgen/opncod.scm[4.44]:
Change the front end of the compiler to expand calls to
general-car-cdr if their second argument is a positive exact integer.
Remove the open-coding rule for general-car-cdr. The reason for this
change is that the open-coding of general-car-cdr does not work
correctly when type checking is turned on.

1991-06-14 Guillermo J. Rozas <[email protected]>

* runtime/framex.scm[14.15]:
Fix bug in method/combination-save-value. The wrong (or non-existent)
subexpression of a combination was being extracted as the relevant
subproblem.

1991-06-13 Chris Hanson <[email protected]>

* compiler/rtlgen/opncod.scm[4.43]:
For SYSTEM-VECTOR-SIZE, cannot assume that the type code of the length
field is zero, as we can for VECTOR-LENGTH.

1991-06-12 Chris Hanson <[email protected]>

* compiler/machines/bobcat/make.scm-68020[4.86],
compiler/machines/bobcat/make.scm-68040[4.86],
compiler/rtlgen/opncod.scm[4.42]:
Fix various bugs in generation of type and range checks.

* compiler/rtlgen/opncod.scm[4.41]:
Eliminate a situation where useless continuation entries were being
generated. The generation of these entries causes errors later on in
the compilation. This bug only occurs when type checking is turned
on.

1991-06-11 Chris Hanson <[email protected]>

* runtime/debug.scm[14.27]:
Fix a couple of logic errors in PRINT-SUBEXPRESSION.

1991-06-10 Guillermo J. Rozas <[email protected]>

* runtime/unpars.scm[14.21]:
Fix bug in unparse-tail by which (1 quote 2) was printing incorrectly.

* runtime/uproc.scm[1.2]:
Fix typo: set-entity-extra! was setting the wrong field.

1991-06-06 Chris Hanson <[email protected]>

* cref/Attic/triv.con[1.3]:
Make changes to correspond to recent changes to "cref.pkg".

1991-05-30 Chris Hanson <[email protected]>

* compiler/machines/mips/make.scm-big[4.84],
compiler/machines/mips/make.scm-little[4.84]:
Update to match current 680x0 sources.

1991-05-28 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/lapgen.scm[4.42],
compiler/machines/bobcat/machin.scm[4.25],
compiler/machines/bobcat/make.scm-68040[4.85],
compiler/machines/bobcat/rules1.scm[4.35],
compiler/machines/bobcat/rules3.scm[4.31]:
Change the value register to d6.
Add compiler hooks for the 68k family.
Fix a bug in the 68040 closure code.
Fix a couple of broken rules that manifested themselves with the value
register change.

* compiler/machines/bobcat/make.scm-68020[4.85],
microcode/cmpauxmd/mc68k.m4[1.20], microcode/cmpintmd/mc68k.h[1.27],
microcode/version.h[11.82]:
Change the value register to d6 on the 68k family.
Add more compiler hooks for the 68k family.

1991-05-27 Guillermo J. Rozas <[email protected]>

* compiler/etc/xcbfdir.scm[1.7]:
Give touch-created-file? an initial value so that if file-touch fails,
there will not be a secondary error in the unwind code.

1991-05-21 Chris Hanson <[email protected]>

* edwin/make.scm[3.49]:
Modify completion code to work reasonably both in normal and typein
windows.

* edwin/filcom.scm[1.157]:
Fix filename/pathname confusion bug in LOAD-FIND-FILE-INITIALIZATION.

* edwin/comint.scm[1.6], edwin/schmod.scm[1.20]:
Change completion code to use new generic support.

* edwin/edwin.pkg[1.42], edwin/prompt.scm[1.146]:
Implement generic support for completions.

1991-05-20 Chris Hanson <[email protected]>

* edwin/make.scm[3.48], edwin/schmod.scm[1.19], edwin/schmod.scm[1.18]:
*** empty log message ***

* edwin/schmod.scm[1.17]:
Add new command M-x scheme-complete-symbol.

* edwin/comint.scm[1.5]:
Change COMINT-LIST-FILENAME-COMPLETIONS -- discard the pop-up buffer
iff the user types a space.

* edwin/syntax.scm[1.73]:
Add new procedure: forward-prefix-chars.

* microcode/syntax.c[1.21], microcode/version.h[11.81]:
Add new primitive SCAN-FORWARD-PREFIX-CHARS.

* edwin/tagutl.scm[1.42]:
Fix bug in FIND-TAG-DEFAULT. This change requires new primitive
SCAN-FORWARD-PREFIX-CHARS, first installed in microcode 11.81.

* edwin/edwin.pkg[1.41]:
Export command definitions for tags package.

1991-05-18 Chris Hanson <[email protected]>

* edwin/bufwin.scm[1.295], edwin/editor.scm[1.205],
edwin/modwin.scm[1.37], edwin/wincom.scm[1.104]:
Eliminate last vestiges of "*" convention in variable documentation.

* edwin/wincom.scm[1.103]:
Change M-x scroll-other-window and M-x
scroll-other-window-several-screens to scroll the window containing a
pop-up buffer if one is popped up during minibuffer editing.

* edwin/prompt.scm[1.145]:
Change handling of default type INSERTED-DEFAULT -- now inserts the
default string only if it is not #f. Change PROMPT-FOR-STRING/PROMPT
to add ": " to prompt only if it doesn't end in " ". Change
PROMPT-FOR-NUMBER to display the default without quote marks. Change
PROMPT-FOR-CONFIRMATION? and PROMPT-FOR-YES-OR-NO? to behave like
Emacs when the user supplies an incorrect answer.

* edwin/evlcom.scm[1.24]:
Change Scheme expression prompting to display the default value with
appropriate quoting.

* edwin/edwin.pkg[1.40]:
Export all command and mode definitions from the prompt package.

* edwin/dired.scm[1.111]:
Improve write-strings-densely. Eliminate several unused procedures.

1991-05-17 Chris Hanson <[email protected]>

* edwin/strpad.scm[1.5]:
Improve write-strings-densely. Eliminate several unused procedures.

* edwin/syntax.scm[1.72]:
Fix fencepost error.

* edwin/editor.scm[1.204]:
Due to change in push-cmdl, it's now necessary to bind edwin's
internal error handler after creating the new cmdl.

* edwin/make.scm[3.47]:
*** empty log message ***

* edwin/bufwmc.scm[1.14]:
Add check to WINDOW-MARK-VISIBLE? to handle marks that fall outside
the display clipping limits.

* edwin/modlin.scm[1.10]:
Change modeline to use display limits when computing the "percentage"
field. Previously it used text limits, which caused errors when the
text limits were wider than the display limits.

* edwin/editor.scm[1.203], edwin/linden.scm[1.121],
edwin/linden.scm[1.120], edwin/prompt.scm[1.144],
edwin/regexp.scm[1.58], edwin/sercom.scm[1.59],
edwin/syntax.scm[1.71]:
Add syntax-table argument to `char->syntax-code' and related
procedures. Move definition of `standard-syntax-table' from regexp
package to edwin top-level package. Eliminate special initialization
of editor variable `syntax-table'.

* edwin/iserch.scm[1.13]:
Fix handling of nonincremental search option. Implement word search
option.

* edwin/sercom.scm[1.58]:
Define word-search commands. Fix various typos and bugs in other
search commands.

* edwin/edwin.pkg[1.39], edwin/prompt.scm[1.143]:
Create new entry point, prompt-for-string/prompt, that does standard
processing of string prompt, including insertion of default and
addition of trailing ": ".

* edwin/prompt.scm[1.142]:
Change prompt-for-string (and all associated prompt procedures) to
accept a prompt "string" that is a one-element list of strings. In
this case, the string that is the list's element is used verbatim as
the prompt string, without the normal processing that appends a
default and ": ".

* edwin/basic.scm[1.113]:
Change M-x execute-extended-command to use name of command character
as prompt. Take advantage of new feature in prompt-for-string to
eliminate automatic suffix of ": " on the prompt string.

* edwin/calias.scm[1.9]:
Change representation of character names to use "M-" instead of "ESC "
as prefix for meta characters. Also change "ESC C-" to "C-M-".

1991-05-16 Chris Hanson <[email protected]>

* edwin/info.scm[1.104]:
Fix a few minor bugs.

* edwin/fileio.scm[1.101]:
When reading a file into a buffer, guarantee that the modified flag
for that buffer is set, so that the modification code doesn't check to
see if the buffer's contents is consistent with the file it came from.

* edwin/prompt.scm[1.141], edwin/utils.scm[1.25]:
Eliminate incorrect case sensitivity in completion.

* edwin/make.scm[3.46]:
*** empty log message ***

* edwin/basic.scm[1.112], edwin/grpops.scm[1.14]:
Add detection and handling of file supercession threats.

1991-05-16 Hal Abelson <[email protected]>

* edwin/rmail.scm[1.5]:
Fix think-o in M-x rmail-reply.

1991-05-15 Chris Hanson <[email protected]>

* runtime/version.scm[14.123]:
Various improvements to the debugger.

* runtime/dbgcmd.scm[14.12]:
Bind a condition handler to catch and ignore errors that occur while
executing debugger commands.

* runtime/rep.scm[14.21], runtime/runtime.pkg[14.108]:
When starting a new CMDL, bind the list of condition handlers to '()
so that the handlers for the parent CMDL do not catch errors meant for
this CMDL.

* edwin/artdebug.scm[1.6], edwin/edwin.pkg[1.38]:
Implement variable continuation-browser-output-style to control how
the debugger displays its output. Bind k to the command that selects
and invokes a restart.

* edwin/bufout.scm[1.4]:
Add CLOSE operation that deallocates the port's output mark.

* runtime/debug.scm[14.26], runtime/rep.scm[14.20],
runtime/runtime.pkg[14.107]:
Implement control variable REPL:ALLOW-RESTART-NOTIFICATIONS?. Change
debugger to present restart notifications with same numbering as does
the REP loop.

* runtime/unpars.scm[14.20]:
Fix typo in last change.

* edwin/make.scm[3.45], runtime/version.scm[14.122]:
*** empty log message ***

* edwin/rmail.scm[1.4]:
Improve M-x undigestify-rmail-message so it doesn't recount all
messages in rmail file -- it just counts the messages that it
generated.

* edwin/filcom.scm[1.156]:
Change filename prompting to convert completion result to use "~"
notation where appropriate.

* edwin/unix.scm[1.17]:
Implement new procedure os/filename->display-string. Change
definition of os/filename-directory, to return false when there's no
directory component.

* runtime/debug.scm[14.25], runtime/runtime.pkg[14.106],
runtime/unpars.scm[14.19]:
Add control variable to allow limiting the amount of a string that is
printed when slashification is turned on. Use this variable in the
debugger.

* edwin/rmail.scm[1.3]:
Add new commands:
rmail-output
rmail-output-to-rmail-file
undigestify-rmail-message

* edwin/filcom.scm[1.155], edwin/fileio.scm[1.100]:
Eliminate duplicated "Saving file..." message.

* edwin/tagutl.scm[1.41]:
Fix think-o in M-x visit-tags-table.

* edwin/filcom.scm[1.154]:
Change prompt-for-pathname and friends to accept a filename as a
default. Previously they required a pathname.

1991-05-15 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/hppa.m4[1.15]:
Change generic_flonum_result because of a bug in the HP assembler!
LDO R'FLONUM_VECTOR_HEADER(7),7
was translated as if it had been
LDO R'FLONUM_VECTOR_HEADER(0),7

I've replaced it with an ADDI instruction.

1991-05-14 Chris Hanson <[email protected]>

* edwin/lincom.scm[1.113]:
Fix bug in M-x untabify: char-search doesn't set the match region.

* edwin/lincom.scm[1.112]:
Fix definition of M-x newline, which should always insert a newline
instead of sometimes moving forward onto a blank line.

* runtime/savres.scm[14.19]:
When DUMP-BAND primitive fails, setup 'RETRY restart for error.

* edwin/basic.scm[1.111], edwin/bufcom.scm[1.89],
edwin/filcom.scm[1.153], edwin/fileio.scm[1.99],
edwin/make.scm[3.44], edwin/rmail.scm[1.2], edwin/unix.scm[1.16]:
* Change save-some-buffers to accept two required arguments. New
second argument, if true, says that we're about to kill the editor.
In that case, buffer-local variable buffer-offer-save says what to
do with buffers that aren't visiting files.

* Change name of initialize-buffer! to normal-mode; this procedure now
takes two arguments. The second argument, if false, means use any
local variable specifications found in the buffer; otherwise, if
inhibit-local-variables is true, the user is asked for confirmation.

* Implement variables:
file-precious-flag
find-file-hooks
find-file-not-found-hooks
find-file-run-dired
write-file-hooks

* edwin/editor.scm[1.202]:
When an internal error occurs, just display its error message, without
the "internal error:" prefix.

* edwin/autosv.scm[1.27]:
Handle errors that occur during auto-save.

* edwin/simple.scm[1.38]:
Implement SLEEP-FOR.

1991-05-13 Chris Hanson <[email protected]>

* runtime/version.scm[14.121]:
*** empty log message ***

* runtime/uerror.scm[14.26]:
Extend list of file primitives to include a few that were missed.

1991-05-10 Chris Hanson <[email protected]>

* runtime/uenvir.scm[14.23]:
Fix bug -- compiled-code environment manipulation was not allowing the
global environment as a valid interpreter environment.

* edwin/modlin.scm[1.9]:
Change modeline control variables to be per-buffer.

* edwin/bufmnu.scm[1.116]:
Rename window-minimum- variables to window-min-. Change C-d to move
up after marking the buffer, instead of down.

* edwin/buffrm.scm[1.40]:
Rename window-minimum- variables to window-min-.

* edwin/wincom.scm[1.102]:
Change M-x recenter to treat C-u argument as meaning "center of
window". Rename window-minimum- variables to window-min-.

* edwin/regexp.scm[1.57], edwin/regexp.scm[1.56]:
Change PRESERVING-MATCH-DATA to save permanent marks instead of
indexes.

* edwin/edtstr.scm[1.16]:
Fix typo in last change.

* runtime/runtime.pkg[14.105]:
Definition CONDITION/REPORT-STRING.

* edwin/make.scm[3.43]:
*** empty log message ***

* edwin/lspcom.scm[1.152], edwin/modefs.scm[1.128],
edwin/schmod.scm[1.16]:
Rename various lisp definition and evaluation commands to match Emacs.

* edwin/motcom.scm[1.41]:
Change M-x goto-char from 0-based to 1-based indexing. Move M-x
goto-line and M-x goto-page from this file to "lincom.scm".

* edwin/lincom.scm[1.111]:
Change commands from 0-based to 1-based indexing: what-line,
goto-line, what-page, and goto-page. Change goto- commands to prompt
for number when no prefix argument. Change variable indent-tabs-mode
to be per-buffer. Redefine M-x delete-blank-lines to match
description in Emacs manual.

* edwin/hlpcom.scm[1.99]:
Rename M-x describe-command to M-x describe-function to match Emacs.
Change prompting and documentation for apropos commands to reflect
fact that their arguments are regular expressions.

* edwin/evlcom.scm[1.23]:
Change evaluation commands to bind nearest-repl/output-port to the
evaluation output port. Eliminate variable transcript-value-truncate,
introduce new variables transcript-list-depth-limit and
transcript-list-breadth-limit, which default to #f. Rename M-x
eval-definition to M-x eval-defun, and M-x eval-buffer to M-x
eval-current-buffer, both to match Emacs.

* edwin/wincom.scm[1.101]:
Change M-x what-cursor-position to report the cursor's position using
1-based (rather than 0-based) indexes.

* edwin/utils.scm[1.24]:
Eliminate WRITE-VALUE, which is no longer used by evaluation commands.

* edwin/edtstr.scm[1.15], edwin/kilcom.scm[1.63],
edwin/regcom.scm[1.19]:
Reimplement kill commands to be exactly like those of Emacs.

* edwin/dired.scm[1.110], edwin/edwin.pkg[1.37]:
Define variable dired-mode-hook. Add error-handling for various
file-system operations. Reimplement list-directory to use `ls' just
like dired.

* edwin/debuge.scm[1.42]:
Eliminate M-x debug-show-rings.

* edwin/bufset.scm[1.9]:
Change to make buffer names case-sensitive.

* edwin/strtab.scm[1.43]:
Change implementation of string tables to allow case-sensitive tables.
Change apropos operation to match against a regular expression rather
than a string.

* microcode/fasdump.c[9.51], microcode/uxfile.c[1.5],
microcode/version.h[11.80]:
Change FASDUMP not to do OS_file_remove_link before opening its output
file. DUMP-BAND is unchanged.

* runtime/error.scm[14.14], runtime/io.scm[14.25],
runtime/runtime.pkg[14.104], runtime/uerror.scm[14.25],
runtime/version.scm[14.120]:
* Change FILE-OPEN-OUTPUT-CHANNEL (and consequently all code to open
files) not to call FILE-REMOVE-LINK. Opening an existing output
file will consequently overwrite the file rather than deleting it
and then opening a new file.

* Add CONDITION-TYPE:DERIVED-FILE-ERROR and translate various system
call errors to that type.

* Define CONDITION/REPORT-STRING to capture common idiom.

1991-05-09 Chris Hanson <[email protected]>

* runtime/unxprm.scm[1.14]:
Fix typo in UNIX/USER-HOME-DIRECTORY.

* runtime/unxprm.scm[1.13]:
Fix typo.

* microcode/version.h[11.79], microcode/x11base.c[1.21],
runtime/x11graph.scm[1.9]:
Change X-WINDOW-GET-DEFAULT to X-DISPLAY-GET-DEFAULT.

* edwin/process.scm[1.7], edwin/shell.scm[1.4], edwin/tterm.scm[1.8]:
Change to handle #F as value from GET-ENVIRONMENT-VARIABLE.

* runtime/unxprm.scm[1.12], runtime/unxpth.scm[14.6],
runtime/version.scm[14.119]:
Change GET-ENVIRONMENT-VARIABLE to return #F if not found. Rename
GET-USER-HOME-DIRECTORY to UNIX/USER-HOME-DIRECTORY.

1991-05-09 Mark Friedman <[email protected]>

* edwin/comwin.scm[1.141]:
Fixed minor bug in %WINDOW-HAS-UP-NEIGHBOR?.

1991-05-08 Chris Hanson <[email protected]>

* edwin/decls.scm[1.21], edwin/ed-ffi.scm[1.11], edwin/edwin.ldr[1.16],
edwin/edwin.pkg[1.36], edwin/make.scm[3.42]:
Add RMAIL mode.

* edwin/filcom.scm[1.152]:
Reorganize code to read files, to make it more flexible. New RMAIL
mode takes advantage of this extra flexibility. Also write message to
typeout window when starting to write a large buffer.

* edwin/sendmail.scm[1.9]:
Must clip text when clearing headers in yanked message.

* edwin/simple.scm[1.37]:
Fix typo in INSERT-REGION.

1991-05-08 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/hppa.m4[1.14]:
Fix bug in multiply_fixnum introduced when re-written to work on the
700s.

1991-05-07 Chris Hanson <[email protected]>

* edwin/paths.scm[1.9]:
Add procedures to manage new "etc" library directory.

* edwin/sendmail.scm[1.8]:
Eliminate dummy rmail mode definition.

* edwin/bufcom.scm[1.88]:
Define M-x toggle-read-only here, not in "filcom.scm".

1991-05-07 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/hppa.m4[1.13]:
Reorder some operations so that overflowing computations in
multiply_fixnum will not trap.

* compiler/machines/spectrum/rules3.scm[4.30]:
Forgot to add the rule for INVOCATION:GLOBAL-LINK.

* compiler/machines/spectrum/rules3.scm[4.29]:
Update to match 68020 compiler version 4.84.
Add assembly-language hooks for generic arithmetic.

* compiler/machines/spectrum/lapgen.scm[4.36],
compiler/machines/spectrum/rgspcm.scm[4.2]:
Update to match 68020 compiler version 4.84.

* compiler/machines/spectrum/compiler.pkg[1.31],
compiler/machines/spectrum/make.scm[4.84]:
Update to match 68020 4.84 version.

* microcode/uxtrap.c[1.10]:
Change handling of bad linkage sections within the block finder to
avoid spuriously crashing after a trap.

* microcode/cmpintmd/hppa.h[1.21]:
Make cache-flushing code model dependent:
- On shared cache machines, there is no need to flush.
- On direct-mapped cache machines, there is no need to flush twice.

* microcode/cmpauxmd/hppa.m4[1.12]:
Add assembly language hooks for generic arithmetic to handle flonums.

* compiler/machines/bobcat/make.scm-68040[4.84]:
- New 68040 closure code.
- Open coding and hooks for quotient and remainder supported.
- Direct UUO links to the global environment supported.
- compiler:intersperse-rtl-in-lap?
- Fixed bug in closure analysis.
- Top-level LETs no longer compile arguments separately.
- Some support for static variables (not complete).

* compiler/machines/bobcat/dassm2.scm[4.18]:
- Add knowledge about new hooks.

* compiler/machines/bobcat/rules3.scm[4.30]:
- New 68040 closure code.
- Open coding and hooks for quotient and remainder supported.
- Global links supported.
- Constants block now includes global links and static variables.

* cref/forpkg.scm[1.6]:
Fix bug by which variable with no binding expressions in package with
multiple files was causing cref to lose.

1991-05-06 Chris Hanson <[email protected]>

* edwin/modefs.scm[1.127]:
Fix typo in last change.

* edwin/dired.scm[1.109]:
Dired mode should inherit from Read-only.

* edwin/keymap.scm[1.9]:
Fix bug: MAX requires at least one argument.

* runtime/io.scm[14.24]:
Eliminate costly call to WITH-CHANNEL-BLOCKING in the input-buffer
operations that read/discard delimited strings.

* runtime/global.scm[14.23], runtime/make.scm[14.29],
runtime/runtime.pkg[14.103], runtime/utabs.scm[14.6],
runtime/version.scm[14.117]:
Fix various dependency problems in cold-load sequence.

* runtime/uenvir.scm[14.22]:
Eliminate unused bound variable.

* runtime/record.scm[1.9]:
If type-name of a record is a string, don't wrap it with doublequote
characters when it is displayed.

* edwin/utils.scm[1.23]:
New procedure LIST-OF-STRINGS?.

* edwin/comint.scm[1.4], edwin/comtab.scm[1.59],
edwin/comtab.scm[1.58], edwin/info.scm[1.103],
edwin/intmod.scm[1.38], edwin/sendmail.scm[1.7]:
Change DEFINE-KEY to automatically define prefix keys as needed.

* edwin/regexp.scm[1.55]:
Fix bug: local binding of STRING interfered with reference intended
for global procedure definition.

* edwin/decls.scm[1.20], edwin/ed-ffi.scm[1.10]:
Change "comtab.scm" to use edwin-syntax-table.

* edwin/basic.scm[1.110], edwin/hlpcom.scm[1.98]:
Rename M-x ^r-bad-command to M-x undefined.

* edwin/artdebug.scm[1.5], edwin/bufmnu.scm[1.115],
edwin/info.scm[1.102], edwin/modefs.scm[1.126]:
Define new major modes READ-ONLY and READ-ONLY-NOARG to support
various modes like Dired and Buffer-Menu.

1991-05-06 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/rgspcm.scm[4.2],
compiler/rtlgen/opncod.scm[4.40]:
Add open codings for quotient and remainder.

* compiler/machines/bobcat/compiler.pkg[1.32]:
Export *interned-global-links*, *interned-static-variables*, and
compiler:intersperse-rtl-in-lap?

* compiler/machines/bobcat/lapgen.scm[4.41]:
- Add hooks and codes for quotient and remainder.

* compiler/back/bittop.scm[1.14]:
Add support for COMMENT LAP pseudo-op.

* compiler/back/lapgn3.scm[4.5]:
- Generate more meaningful label names for the constant block.
- Add support for global uuo links and static variables.

* compiler/back/lapgn1.scm[4.11]:
- Add use of compiler:intersperse-rtl-in-lap?
- Pass *interned-global-links* and *interned-static-variables* to
generate/constants-block.

* compiler/base/switch.scm[4.16]:
Add compiler:intersperse-rtl-in-lap?

* compiler/base/toplev.scm[4.34]:
Initialize *interned-global-links* and *interned-static-variables* and
clear them on recursive compilations.

* compiler/rtlgen/rgcomb.scm[4.16]:
Make (access foo ()) in the operator position generate a global uuo link.

* compiler/rtlbase/rtlexp.scm[4.17], compiler/rtlbase/rtlty1.scm[4.18],
compiler/rtlopt/rcse1.scm[4.21], compiler/rtlopt/rinvex.scm[1.5]:
Add invocation:global-link rtl type.

* compiler/fggen/fggen.scm[4.27]:
Hack to make (access foo ()) in the operator position of a combination
be handled as a UUO link to the global environment.

* compiler/fggen/canon.scm[1.9]:
Top-level lets do not have their arguments compiled in separate blocks
when compiler:compile-by-procedures? is true.

* sf/gconst.scm[4.11], sf/make.scm[4.17], sf/usiexp.scm[4.9]:
Add primitives quotient and remainder.

* microcode/cmpauxmd/mc68k.m4[1.19]:
Add hooks for quotient and remainder.
Change 68040 closure code to be cheaper (single parameter passed now).

* microcode/cmpintmd/mc68k.h[1.26], microcode/generic.c[9.36],
microcode/version.h[11.78]:
Add hooks for quotient and remainder.

* runtime/arith.scm[1.20], runtime/version.scm[14.118]:
- Add trampolines for quotient, remainder, and modulo.
- Redefine user-visible quotient, remainder, and modulo so that the
compiler will do a better job.

1991-05-05 Guillermo J. Rozas <[email protected]>

* microcode/hppacach.c[1.3]:
Add a -printall option.
Make it print somewhat better.

* compiler/fgopt/closan.scm[4.16]:
Improve compatibility-class. Pending undriftings cause COMPATIBILITY,
not APPLY-COMPATIBILITY. In other words, if we are forcing every
candidate to be a closure for compatibility, we can still in-line the
call if the arities match.

* microcode/lookup.c[9.46]:
Add support for caches directly linked to specific frames.

* microcode/cmpint.c[1.36]:
Add support for execute caches directly linked to the global
environment.

Teach the linker about arity dispatcher entities.

Add generic hooks for quotient, remainder, and modulo.

* microcode/bchdmp.c[9.55], microcode/bchgcl.c[9.41],
microcode/bchpur.c[9.53], microcode/boot.c[9.70],
microcode/cmpgc.h[1.16], microcode/fasload.c[9.62],
microcode/gcloop.c[9.35], microcode/purify.c[9.46],
microcode/purutl.c[9.41], microcode/uxtrap.c[1.9],
microcode/version.h[11.77]:
Add support for GLOBAL_OPERATOR_LINKAGE_KIND.

* microcode/fasdump.c[9.50]:
Make third argument to fasdump meaningful. It specifies how
environment objects should be handled.

* microcode/utabmd.scm[9.57]:
Add GENERIC_TRAMPOLINE_QUOTIENT, GENERIC_TRAMPOLINE_REMAINDER,
GENERIC_TRAMPOLINE_MODULO, and ARITY_DISPATCHER_TAG slots to the
fixed-objects vector.

* microcode/fixobj.h[9.30]:
Add GENERIC_TRAMPOLINE_QUOTIENT, GENERIC_TRAMPOLINE_REMAINDER,
GENERIC_TRAMPOLINE_MODULO, and ARITY_DISPATCHER_TAG.

1991-05-04 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.146]:
If looking for local value of variable in buffer other than the
current one, and the variable doesn't appear in the buffer's local
bindings, must search the current buffer's local bindings too.

* edwin/malias.scm[1.2]:
Disallow null arguments to M-x define-mail-alias.

* edwin/replaz.scm[1.70], edwin/tagutl.scm[1.40]:
Allow null replacement string in replacement commands.

* runtime/uenvir.scm[14.21]:
Fix bug: stack frames that consist of multiple subproblems -- where
there are no return addresses because the compiler knew them -- must
be treated as a unit when searching for static links or closures.

1991-05-04 Guillermo J. Rozas <[email protected]>

* sicp/compat.scm[1.4]:
Fix implode and explode to handle arbitrary objects and fix the
handling of strings.

1991-05-03 Arthur Gleckler <[email protected]>

* runtime/load.scm[14.22], runtime/savres.scm[14.18]:
Move command-line-processing code from (RUNTIME SAVE/RESTORE) package
to (RUNTIME LOAD) package. Change INITIALIZE-PACKAGE! so that Scheme
initialization file is loaded before command line is processed. This
allows initialization file to add command-line options.

1991-05-02 Chris Hanson <[email protected]>

* edwin/input.scm[1.89]:
Eliminate unused variable binding.

* edwin/argred.scm[1.30], edwin/autold.scm[1.50],
edwin/autosv.scm[1.26], edwin/basic.scm[1.109],
edwin/bufcom.scm[1.87], edwin/buffer.scm[1.145],
edwin/bufmnu.scm[1.114], edwin/comred.scm[1.86],
edwin/edwin.pkg[1.35], edwin/filcom.scm[1.151],
edwin/fileio.scm[1.98], edwin/fill.scm[1.50], edwin/kilcom.scm[1.62],
edwin/lincom.scm[1.110], edwin/macros.scm[1.52],
edwin/make.scm[3.41], edwin/modefs.scm[1.125],
edwin/motcom.scm[1.40], edwin/prompt.scm[1.140],
edwin/replaz.scm[1.69], edwin/sendmail.scm[1.6],
edwin/shell.scm[1.3], edwin/struct.scm[1.78], edwin/tagutl.scm[1.39],
edwin/undo.scm[1.48], edwin/wincom.scm[1.100]:
* Complete redesign of command argument code. New code more closely
resembles that of Emacs, with some differences, but most importantly
the argument state is stored in a single object that can be passed
around.

* Rename M-x backward-delete-char to M-x delete-backward-char to match
Emacs.

* Add BACKUP-MODE argument to WRITE-BUFFER-INTERACTIVE and
SAVE-BUFFER, to control the creation of backup files.

* New procedures give absolute limits of buffer, independent of
current narrowing:
GROUP-ABSOLUTE-START
GROUP-ABSOLUTE-END
MARK-ABSOLUTE-START
MARK-ABSOLUTE-END
BUFFER-ABSOLUTE-START
BUFFER-ABSOLUTE-END

* New procedures
WITH-GROUP-UNDO-DISABLED
LAST-COMMAND-CHAR

* Extend REF-VARIABLE macro to take optional second arg: a buffer,
meaning the buffer-local value of the variable in that buffer.

* Replace WITH-NARROWED-REGION! with the slightly more useful
WITH-TEXT-CLIPPED. Add new procedures TEXT-CLIP and GROUP-TEXT-CLIP
to round out the set of text clipping procedures.

1991-05-02 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/hppa.h[1.20]:
Define PUSH_D_CACHE_REGION that uses the new cache_flush_region.

* microcode/boot.c[9.69]:
const -> CONST for non-ansi compilers.

* microcode/cmpauxmd/hppa.m4[1.11]:
Modify cache_flush_region to accept an additional argument specifying
which caches to flush.

* microcode/cmpint.c[1.35]:
Add a comment about improving the cache flushing code in
enter_compiled_expression.

* compiler/back/lapgn1.scm[4.10]:
Undo optimization by which blocks with no free references were not
linked.
They must be linked only to get the appropriate section of the D-cache
flushed!

1991-04-29 Chris Hanson <[email protected]>

* edwin/replaz.scm[1.68]:
M-x replace-string and M-x replace-regexp are supposed to leave point
at the end of the last replacement.

* edwin/regexp.scm[1.54]:
REPLACE-MATCH now returns a mark pointing to the end of the
replacement rather than the start.

* edwin/process.scm[1.6]:
Provide unwind-protect to delete a synchronous process if the process
is aborted.

* edwin/edwin.pkg[1.34], edwin/make.scm[3.40], edwin/xterm.scm[1.18]:
Implement asynchronous ^G detection for X, using the real-time
interrupt. New procedures X-TIMER-INTERVAL and SET-X-TIMER-INTERVAL!
allow control over the interrupt's interval, which is initially one
second.

* edwin/process.scm[1.5]:
Allow FIND-PROGRAM's second argument, DEFAULT-DIRECTORY, to be #F
meaning none.

* edwin/regexp.scm[1.53]:
Fix typo in REPLACE-MATCH.

1991-04-27 Chris Hanson <[email protected]>

* microcode/gpio.c[1.9], microcode/ux.c[1.8], microcode/uxio.c[1.14],
microcode/version.h[11.76]:
Eliminate use of INTERRUPTABLE_EXTENT on read and write system calls.
This doesn't work as the system call might finish and then check for
signals just before returning with a valid answer (and thereby losing
data).

This code should work OK for 4.3BSD, POSIX, and SYSV systems.
Unfortunately there's no good way to make it work for 4.2BSD -- which
probably means some hairy kludge will be needed to get ^G interrupts
to work on that system. This will require identifying when we go into
an input wait on the console.

1991-04-26 Chris Hanson <[email protected]>

* edwin/make.scm[3.39], edwin/xterm.scm[1.17]:
Changes to match microcode version 11.75 -- cannot be used with
earlier microcode versions.

* microcode/version.h[11.75], microcode/x11base.c[1.19],
microcode/x11graph.c[1.9], microcode/x11term.c[1.15]:
This version of the microcode cannot be used with Edwin versions
before 3.39.

Improvements to X window event handling. The purpose of these
improvements is to permit Scheme to read X events from the queue
without immediately performing their actions; this supports looking
ahead in the queue to find interrupt characters in Edwin.

* X-DISPLAY-PROCESS-EVENTS no longer does anything special for
configure and exposure events that are received by xterm windows.
New primitives XTERM-RECONFIGURE and XTERM-DUMP-RECTANGLE must be
invoked by the Scheme event handler to get the same effect. New
event type `event_type_expose' is used to return exposure events.

* The coordinates and sizes returned in event objects are now in X
pixel units. New primitives XTERM-MAP-{X,Y}-{COORDINATE,SIZE} are
used to translate these units into xterm character coordinates.

* edwin/make.scm[3.38]:
*** empty log message ***

* edwin/tagutl.scm[1.38]:
Change M-x tags-query-replace to do regexp search.

* edwin/replaz.scm[1.67]:
Implement M-x query-replace-regexp and M-x replace-regexp. Change
interface to REPLACE-STRING procedure to accomplish this.

* edwin/edwin.pkg[1.33], edwin/regexp.scm[1.52]:
Implement new procedures PRESERVING-MATCH-DATA and
RE-SUBSTITUTE-REGISTERS. Reimplement REPLACE-MATCH to have same
functionality as that procedure in GNU Emacs.

* runtime/arith.scm[1.19]:
Fix bug: check type of arguments to MAKE-RECTANGULAR and MAKE-POLAR,
allowing exactly those numbers that satisfy REAL?.

1991-04-26 Mark Friedman <[email protected]>

* microcode/x11base.c[1.20]:
Added control, shift and meta button events.

1991-04-25 Mark Friedman <[email protected]>

* runtime/events.scm[14.2]:
Made sure that the lock on an event distributor is restored if you
throw out of or into process-events!

1991-04-24 Chris Hanson <[email protected]>

* microcode/uxterm.c[1.14]:
Add missing `static' declarations to OS_open_pty_master.

* edwin/decls.scm[1.19], edwin/ed-ffi.scm[1.9], edwin/edwin.ldr[1.15],
edwin/edwin.pkg[1.32], edwin/make.scm[3.37], edwin/sendmail.scm[1.5]:
Implement mail aliases and ~/.mailrc file.

* edwin/edwin.pkg[1.31]:
Export `group-extract-and-delete-string!'.

* edwin/grpops.scm[1.13], edwin/sendmail.scm[1.4]:
Fix typo.

* edwin/buffer.scm[1.144]:
Change `group-un-clip!' to `group-widen!'.

* edwin/regops.scm[1.83]:
Change `mark-right-char' and `mark-left-char' to return #F at the
buffer limits. New procedures `group-narrow!' and `group-widen!'.
Eliminate `group-un-clip!'.

* edwin/fill.scm[1.49]:
Change message generated by M-x set-fill-column to match Emacs.

* edwin/simple.scm[1.36]:
Eliminate `match-string'. New procedures `narrow-to-region' and
`widen'.

* edwin/kilcom.scm[1.61]:
Eliminate reference to `match-string'.

* edwin/info.scm[1.101]:
Eliminate reference to `group-un-clip!'.

* edwin/grpops.scm[1.12]:
New procedure group-extract-and-delete-string!.

* edwin/basic.scm[1.108]:
Change prompting for prefix chars to be more like that of Emacs.
Update some variable documentation strings. Make comment-column be
per-buffer.

1991-04-23 Chris Hanson <[email protected]>

* edwin/fill.scm[1.48], edwin/make.scm[3.36], edwin/regexp.scm[1.51],
edwin/schmod.scm[1.15], edwin/search.scm[1.149],
edwin/sendmail.scm[1.3], edwin/sendmail.scm[1.2],
edwin/tparse.scm[1.66]:
* Change arguments to string and regexp search procedures. New
arguments are (PATTERN MARK END #!OPTIONAL CASE-FOLD-SEARCH).

* Reimplement paragraph and region filling commands, to fix bugs and
create new functionality. Default region filling is now done by
paragraphs rather than treating the entire region as a single
paragraph.

* Implement M-x mail-fill-yanked-message.

* edwin/fileio.scm[1.97], edwin/hlpcom.scm[1.97],
edwin/info.scm[1.100], edwin/iserch.scm[1.12],
edwin/lincom.scm[1.109], edwin/replaz.scm[1.66],
edwin/sercom.scm[1.57], edwin/syntax.scm[1.70],
edwin/tagutl.scm[1.37]:
Always supply LIMIT argument to search procedures.

* edwin/comman.scm[1.67]:
When a variable value validity test is failed, signal an editor error
instead of a Scheme error.

* edwin/filcom.scm[1.150]:
Fix bug in M-x set-visited-file-name -- couldn't unset buffer's file
name.

* edwin/buffer.scm[1.143]:
Fix think-o in `set-buffer-pathname!'.

1991-04-21 Chris Hanson <[email protected]>

* edwin/dired.scm[1.108]:
Dired of a wildcard specification didn't work -- now fixed.

* edwin/autosv.scm[1.25], edwin/buffer.scm[1.142],
edwin/bufinp.scm[1.4], edwin/bufmnu.scm[1.113],
edwin/cinden.scm[1.5], edwin/comint.scm[1.3], edwin/comman.scm[1.66],
edwin/debuge.scm[1.41], edwin/decls.scm[1.18],
edwin/dired.scm[1.107], edwin/ed-ffi.scm[1.8], edwin/edwin.ldr[1.14],
edwin/edwin.pkg[1.30], edwin/filcom.scm[1.149],
edwin/fileio.scm[1.96], edwin/fill.scm[1.47], edwin/hlpcom.scm[1.96],
edwin/info.scm[1.99], edwin/kilcom.scm[1.60],
edwin/lincom.scm[1.108], edwin/macros.scm[1.51],
edwin/make.scm[3.35], edwin/modefs.scm[1.124],
edwin/process.scm[1.4], edwin/regexp.scm[1.50],
edwin/search.scm[1.148], edwin/sercom.scm[1.56],
edwin/shell.scm[1.2], edwin/simple.scm[1.35], edwin/struct.scm[1.77],
edwin/things.scm[1.80], edwin/undo.scm[1.47], edwin/unix.scm[1.15],
edwin/utils.scm[1.22], runtime/rgxcmp.scm[1.106]:
* Implement mail sending.

* Implement M-x append-to-file, M-x tabify, C-u M-x indent-region.

* Change M-x undo to move point to the location of the most recent
undone change. This restores the behavior that was in effect before
the last change to undo.

* Implement variable `enable-emacs-write-file-message', by default
true, which changes file-output messages to be like Emacs.

* Fix simple bugs in auto save code, local variable binding.

* Add new slot to buffer, LOCAL-BINDINGS-INSTALLED?, that speeds up
the test to determine if the buffer's local bindings are the ones
currently installed in the variable value cells.

* Reimplement character search, character match, and string match.
New implementation does not use regular expression primitives.
A new set of low-level search and match primitives provides more
power than the old ones did.

* Implement `run-synchronous-process'. Reimplement `shell-command'
and `shell-command-region' in terms of this new procedure.

* Implement `insert-region', which copies text directly from one
buffer to another without making an intermediate copy.

* edwin/screen.scm[1.93]:
Optimize drawing of highlighted lines. Previously, without
optimization, almost any change would cause a complete redrawing of
the mode line.

* edwin/curren.scm[1.92]:
Change procedures that set point and mark to copy their argument.
This is necessary in case the argument is a permanent mark that is
later made temporary.

1991-04-20 Chris Hanson <[email protected]>

* sf/gconst.scm[4.10], sf/make.scm[4.16], sf/usicon.scm[4.2]:
Can't integrate scode-eval any longer, since it's now a compound
procedure. This was overlooked by accident because "usicon" used
scode-constant? to test whether the constants in "gconst" were
reasonable -- and this predicate returns true for compiled procedures.
Now the predicate used is something more discriminating, which should
not permit unreasonable values in the .bin file.

1991-04-18 Mark Friedman <[email protected]>

* runtime/runtime.pkg[14.102]:
Added hooks for syntax-expression and scode-eval.

* runtime/Attic/syntax.scm[14.16]:
Added hook for syntax-expression.

* runtime/global.scm[14.22]:
Added hook for scode-eval.

1991-04-15 Guillermo J. Rozas <[email protected]>

* compiler/base/toplev.scm[4.33],
compiler/machines/bobcat/compiler.pkg[1.31],
compiler/machines/bobcat/make.scm-68040[4.83]:
Rename compile-scode to compile-scode/internal.
Define and export compile-scode.
Make compiled code blocks generated by calls to compile-procedure and
compile-scode contain the debugging information (rather than have it
dropped).

* runtime/Attic/syntax.scm[14.15], runtime/infutl.scm[1.21],
runtime/load.scm[14.21], runtime/runtime.pkg[14.101],
runtime/version.scm[14.116], runtime/xeval.scm[1.4]:
Add hook/extended-scode-eval so that expressions can be integrated or
compiled before they are evaluated.

Change compiled-code-block/dbg-info to correctly handle compiled code
blocks whose debugging slot holds a dbg-info structure.

* microcode/x11graph.c[1.8]:
Casts to make it run under SunOS 4.03 when compiled by Sun cc.

1991-04-13 Chris Hanson <[email protected]>

* edwin/fill.scm[1.46]:
Change interface of `fill-region' procedure to allow caller to supply
fill prefix and column as arguments.

* edwin/autosv.scm[1.24], edwin/unix.scm[1.14]:
Change interface of `os/auto-save-pathname' so that it will generate a
correct result for buffers that have no visited pathname.

1991-04-12 Arthur Gleckler <[email protected]>

* sicp/graphics.scm[1.3]:
Make CLEAR-POINT, DRAW-LINE-TO, DRAW-POINT, GRAPHICS-TEXT, and
POSITION-PEN all automatically call INIT-GRAPHICS if graphics hasn't
already been initialized. CLEAR-GRAPHICS already does this.

1991-04-12 Chris Hanson <[email protected]>

* edwin/make.scm[3.34]:
*** empty log message ***

* edwin/fileio.scm[1.95], edwin/hlpcom.scm[1.95], edwin/info.scm[1.98]:
Add third argument to `read-buffer?', which prevents updating the
buffer's pathname and modification flags if it is false.

* edwin/filcom.scm[1.148]:
Change `revert-buffer' and `set-visited-file-name' commands to
recognize and handle auto-save files correctly. Improve performance
of filename completion by eliminating incompatible "feature" of
further completion when a directory contains only a single file (which
never happens in unix).

* edwin/edwin.pkg[1.29], edwin/undo.scm[1.46]:
Don't clear buffer-modification flag unless the buffer's contents
match the contents of the file on disk. Only move point when undoing
records whose type is BOUNDARY or NOT-UNDOABLE.

* edwin/unix.scm[1.13]:
Rewrite directory-listing procedures to use new primitives -- REQUIRES
MICROCODE VERSION 11.74 OR LATER. Implement procedure
`file-readable?'.

* edwin/lincom.scm[1.107]:
Fix missing argument in `reindent-then-newline-and-indent'.

* edwin/grpops.scm[1.11]:
Make sure that undo recording happens before any changes -- this is
assumed and required by the undo code.

* edwin/c-mode.scm[1.46]:
Fix name mismatches on two key bindings for C mode. Add flashing of
matching delimiter for close paren and close curly brace.

* edwin/buffer.scm[1.141]:
Change buffer `auto-save-modified' flag to `auto-save-state'. This
change allows us to recognize when a valid auto-save file has been
saved for the current editing session, which is needed to correctly
implement `revert-buffer'.

* edwin/autosv.scm[1.23]:
Implement procedure `rename-auto-save-file!'. Implement command
`do-auto-save'.

* microcode/osfs.h[1.2], microcode/prosfs.c[1.3],
microcode/uxfs.c[1.4], microcode/version.h[11.74]:
Add new primitives `directory-open-noread' and
`directory-read-matching', to facilitate filename completion.

1991-04-11 Chris Hanson <[email protected]>

* runtime/output.scm[14.9], runtime/runtime.pkg[14.100],
runtime/version.scm[14.115]:
Implement new I/O port operations READ-SUBSTRING and WRITE-SUBSTRING
that do block I/O to or from part of a given string.

* edwin/make.scm[3.33]:
Various changes. Requires runtime version 14.115 or later.

* edwin/tterm.scm[1.7]:
Implement cost analysis to estimate when scrolling is likely to be
more expensive than just redrawing, and forbid scrolling in those
cases. This eliminates nasty problem of C-v doing very slow scrolling
operation to save two lines that could be redrawn in much less time.

* edwin/edwin.pkg[1.28], edwin/screen.scm[1.92]:
When drawing a new line over an old one that is known to be blank,
don't draw either leading or trailing spaces; previously was drawing
leading spaces in this case. Also implement procedure to estimate the
cost of drawing a specific screen line, for use in scrolling
optimization.

* edwin/dired.scm[1.106]:
Change dired to use an `ls' subprocess rather than built-in
primitives. This is both faster and somewhat more flexible. Also
implement most of the dired commands that were missing from Edwin.
Still missing: compression commands and view mode command.

* edwin/process.scm[1.3]:
Change `shell-command' and `shell-command-region' to accept any mark
as the output mark, and convert it into an appropriate left-inserting
mark.

* edwin/simple.scm[1.34]:
Re-enable parenthesis matching in typein window. Change "off-window"
matching message to be prefixed by "Matching ".

1991-04-08 Chris Hanson <[email protected]>

* runtime/version.scm[14.114]:
*** empty log message ***

* runtime/defstr.scm[14.17]:
Eliminate unused variable.

* runtime/x11graph.scm[1.8]:
Cache default display so that the trivial dumb use of this procedure
does not result in multiple connections to the X server.

1991-04-06 Guillermo J. Rozas <[email protected]>

* sicp/compat.scm[1.3]:
Define student-pp that understands old-style arguments.

* sicp/studen.scm[1.8]:
Make pp be bound to student-pp.

* sicp/studen.scm[1.7]:
Patch syntax table so that MAKE-ENVIRONMENT works.

* sicp/studen.scm[1.6]:
Fix bug with making [] extended alphabetic.

char-set/atom-delimiters must be changed in the parser to exclude [].
Otherwise the parser goes into an infinite loop since when peeking any
of them, we will read until a delimiter is found, but it will work as
a delimiter, so the empty string will be interned, and we will
dispatch on the peeked char again, ...

1991-04-03 Chris Hanson <[email protected]>

* edwin/bufwin.scm[1.294]:
Fix bug that prevented override message from being written at the
right time in some circumstances.

* edwin/linden.scm[1.119]:
Fix bug that made C-u TAB work incorrectly under some conditions.

* edwin/evlcom.scm[1.22], edwin/evlcom.scm[1.21]:
Catch errors that happen while reading expressions from a buffer.

* edwin/bufmnu.scm[1.112]:
When marking buffers for deletion, use D instead of K.

* edwin/bufwin.scm[1.293]:
Fix bug that prevented the typein window from being correctly updated
when a message was erased.

* edwin/bufwfs.scm[1.14]:
Fix fencepost error in `scroll-lines-up'.

* compiler/rtlgen/rtlgen.scm[4.26]:
`block/next-continuation-offset', when it found that the next thing up
on the stack was an "always-known" continuation, failed to take that
continuation's offset into account when determining the distance to
the continuation above that.

* edwin/process.scm[1.2]:
In `shell-command-region', if the region is empty, must close the
input channel of the subprocess.

* edwin/make.scm[3.32], edwin/make.scm[3.31]:
*** empty log message ***

* edwin/grpops.scm[1.10]:
Fix think-o in `group-delete!'.

1991-04-02 Chris Hanson <[email protected]>

* edwin/bufwin.scm[1.292], edwin/bufwiu.scm[1.19],
edwin/bufwmc.scm[1.13], edwin/fileio.scm[1.94],
edwin/grpops.scm[1.9], edwin/regops.scm[1.82],
edwin/struct.scm[1.76]:
Change mark data structure to store index instead of position.
Eliminate `mark-position' operation, which is no longer useful.

These changes require microcode version 11.73 or later.

* microcode/edwin.h[1.5], microcode/rgxprim.c[1.9],
microcode/version.h[11.73]:
Update description of Edwin mark structure to match change in Edwin
version 3.31. Previous versions of Edwin will not work correctly with
this microcode.

* compiler/machines/bobcat/make.scm-68040[4.82],
compiler/rtlgen/rtlgen.scm[4.25]:
In `block/next-continuation-offset', if the next continuation is
always known, then it won't be pushed and the offset must include the
distance to the next continuation after that.

* edwin/bufwfs.scm[1.13]:
Fix bugs associated with continuation lines: when scrolling, lines
that are continued off the top or bottom of the window must be redrawn
instead of scrolled. Also fix typo in last change that caused
continued lines to draw only their last line in most cases.

1991-04-01 Chris Hanson <[email protected]>

* edwin/bufwiu.scm[1.18]:
In `maybe-scroll', if the lines are being scrolled off the window,
don't forget to deallocate the structures used to describe them.

* edwin/bufwfs.scm[1.12]:
Fix bug: lines that were clipped at a window's top were not being
drawn correctly.

* edwin/bufwfs.scm[1.11], edwin/bufwin.scm[1.291],
edwin/bufwiu.scm[1.17], edwin/bufwmc.scm[1.12],
edwin/edtfrm.scm[1.84], edwin/edwin.pkg[1.27],
edwin/image.scm[1.128], edwin/make.scm[3.30], edwin/modlin.scm[1.8],
edwin/modwin.scm[1.36], edwin/screen.scm[1.91],
edwin/utlwin.scm[1.57]:
* Redesign redisplay to get line-contents strings from the screen
abstraction and write directly on those strings, thus avoiding much
intermediate copying and the consequent computation. Eliminate as
much intermediate consing as possible from the image-generation
code.

* Eliminate `string-base' window class, which was storing too much
information for each buffer line. Instead, use new `outline'
abstraction, which keeps track of two pieces of information for each
line: the number of characters in the line and the height of the
line's image on the screen. This is all that is needed when
computing what needs to be redrawn -- all other information is
already being stored in the screen abstraction.

* New `outline' and `o3' objects are explicitly managed for each
window. Instead of being discarded after use, they are saved for
reuse later, preventing the generation of garbage during most
redisplay.

* Fix bug in redisplay: if the image of the last line in a window
extends past the bottom of the window, and the point moves, we must
check to see if it has gone offscreen, even if it is on a displayed
line.

* edwin/struct.scm[1.75]:
If a buffer has a `display-start' mark, and the buffer is narrowed,
the `display-start' must be eliminated if it is outside the narrowed
region.

* edwin/unix.scm[1.12]:
Fix bug that prevented "//" at end of pathname string from meaning
"/".

* edwin/filcom.scm[1.147]:
Fix bug that caused dired buffer of "/" to have the name "*random*".

1991-03-29 Guillermo J. Rozas <[email protected]>

* compiler/documentation/porting.guide[1.19]:
Add JMiller's comments and make some edits incorporating some
suggestions by JMiller, MarkF, and Arthur.

1991-03-28 Chris Hanson <[email protected]>

* edwin/simple.scm[1.33]:
Don't use temporary messages to flash matching parentheses in the
minibuffer.

1991-03-28 Guillermo J. Rozas <[email protected]>

* microcode/boot.c[9.68]:
Make the compiler interface reset itself after restarting a dumped
scheme. On some machines, the cache description needs to be recached.

* microcode/version.h[11.72]:
Some patches for the NeXT, and other cacheing 68040s.

* microcode/cmpintmd/mc68k.h[1.25]:
Change NeXT cache flushing code because "trap #2" does not preserve
%d0.

* microcode/cmpauxmd/mc68k.m4[1.18]:
Eliminate unnecessary parentheses that were confusing Asmcvt.

* microcode/m/Attic/hp9k400.h[1.2]:
Bump symbol table size for HP C compiler.

* microcode/uxio.c[1.13]:
Fix initialization of aggregate variable to accommodate the HP C
compiler.

* microcode/m/Attic/hp9k300.h[1.7]:
The HP compiler can't handle x11base.c unless the symbol table size is
bumped.

* microcode/unxutl/Attic/y300.lcl[1.17]:
Add jinxscheme that includes the dump-world primitive.

* microcode/cmpintmd/mc68k.h[1.24]:
Add some site conditionalization so that the same binaries will work
for both 7.0 and 7.05 (the sources already did).

Change #error into #include "error:.." because HP's cpp does not
understand it even though it is in the ANSI standard.

* microcode/cmpint.c[1.34]:
Change #error into #include "error:.." because HP's cpp does not
understand it even though it is in the ANSI standard.

* microcode/uxsig.c[1.8]:
Fix non-portable cpp hack in the definition of sighnd_stop.

1991-03-27 Chris Hanson <[email protected]>

* edwin/comint.scm[1.2]:
Fix thinko in `make-comint'.

1991-03-26 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/mc68k.m4[1.17], microcode/version.h[11.71]:
Add handling of floating point in assembly language for generic
arithmetic.

* microcode/cmpintmd/mc68k.h[1.23]:
Starting loop boundary on heap-clearing loop in allocate_closure was
incorrect.

1991-03-25 Mark Friedman <[email protected]>

* runtime/defstr.scm[14.16]:
Fixed bug about boa-constructors of record types.

1991-03-24 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/instr2.scm[1.18]:
Fix bug in CMP and CMPI instructions.

* compiler/machines/bobcat/lapgen.scm[4.40],
compiler/machines/bobcat/machin.scm[4.24],
compiler/machines/bobcat/make.scm-68040[4.81],
compiler/machines/bobcat/rules3.scm[4.29]:
Conditionalization and changes for 68040 format closures.

* microcode/m/Attic/next.h[1.3]:
Choose alternate MC68k closure format that works on the MC68040.

* microcode/psbtobin.c[9.43]:
read_a_char was not handling \t and \b correctly.

* microcode/cmpintmd/mc68k.h[1.22]:
Fix a problem with allocate_closure: All words must be initialized in
order to make the heap parseable. This is needed by relocate_block
after disk-restore.

* microcode/bintopsb.c[9.48]:
Specifying ci_version or ci_processor imply upgrade_cc.
This makes the command lines used for the cross-compiler much terser.

* microcode/bchmmg.c[9.61]:
Cast pointer to avoid compiler warning.

* microcode/cmpintmd/mc68k.h[1.21]:
Fix allocate_closure.

1991-03-23 Chris Hanson <[email protected]>

* edwin/bufwmc.scm[1.11]:
Fix typo in `predict-start-line'.

* runtime/uerror.scm[14.24]:
Supply missing case in unassigned variable trap.

1991-03-22 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.140], edwin/buffrm.scm[1.39],
edwin/bufwfs.scm[1.10], edwin/bufwin.scm[1.290],
edwin/bufwiu.scm[1.16], edwin/bufwmc.scm[1.10],
edwin/decls.scm[1.17], edwin/ed-ffi.scm[1.7], edwin/edwin.ldr[1.13],
edwin/edwin.pkg[1.26], edwin/evlcom.scm[1.20],
edwin/fileio.scm[1.93], edwin/image.scm[1.127],
edwin/iserch.scm[1.11], edwin/kilcom.scm[1.59],
edwin/lincom.scm[1.106], edwin/make.scm[3.29], edwin/modlin.scm[1.7],
edwin/motion.scm[1.83], edwin/regops.scm[1.81],
edwin/screen.scm[1.90], edwin/struct.scm[1.74],
edwin/things.scm[1.79], edwin/utlwin.scm[1.56]:
* Each group object now has a unique associated buffer, and vice
versa. This allows low-level group operations to access
buffer-local variables associated with the group, such as
`tab-width'. New procedures: `group-buffer', `mark-buffer', and
`group-tab-width'.

* Handling of `truncate-lines' and `tab-width' buffer-local variables
is fixed.

* Extensive rewriting of redisplay, screen, and image code to squeeze
a little more performance from it.

* Eliminate truncating buffer output ports, because they were unused,
and depended on a feature that is no longer viable.

* Code to read files into buffers is redesigned. Previously it read
the file into a string, and then inserted the string into the
buffer. Now it reads the file directly into the buffer.

* Fix representation of characters in the range 200 to 377 octal.
Their images are now four-character octal sequences; previously the
images were the characters themselves.

* edwin/simple.scm[1.32]:
Add new procedure `extract-and-delete-string', which combines
`extract-string' and `delete-string' into a single operation.

* edwin/grpops.scm[1.8]:
Slight tweak of `group-extract-string' to improve performance.

* edwin/filcom.scm[1.146]:
Eliminate commented-out printing commands. These will be rewritten
later.

1991-03-22 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/mc68k.h[1.20]:
Move cache flushing code out of the 68040 region since it is needed
even when using the 68020 format.

* microcode/cmpgc.h[1.15], microcode/cmpint.c[1.33]:
Move NOP macro from cmpint.c to cmpgc.h since it is also needed
elsewhere.

* microcode/cmpintmd/mc68k.h[1.19]:
Make it compile under HP-UX when
(COMPILER_PROCESSOR_TYPE == COMPILER_MC68040_TYPE).

1991-03-21 Chris Hanson <[email protected]>

* compiler/rtlopt/rcompr.scm[1.11]:
Add two new cases of foldable expressions, to permit certain string
operations to be folded.

1991-03-21 Guillermo J. Rozas <[email protected]>

* microcode/bchmmg.c[9.60], microcode/cmpauxmd/mc68k.m4[1.16],
microcode/cmpgc.h[1.14], microcode/cmpint.c[1.32],
microcode/cmpintmd/mc68k.h[1.18], microcode/const.h[9.37],
microcode/fasload.c[9.61], microcode/memmag.c[9.46],
microcode/version.h[11.70]:
Changes for MC68040.
Ansification of cmpint.c.

1991-03-18 Guillermo J. Rozas <[email protected]>

* microcode/bchmmg.c[9.59]:
Fix bug in Clear_Memory introduced when constant space overwriting
hack was added. It was fixed in memmag.c, but not here!

1991-03-16 Chris Hanson <[email protected]>

* edwin/make.scm[3.28]:
Some performance improvements in the redisplay code.

* edwin/screen.scm[1.89], edwin/tterm.scm[1.6], edwin/xterm.scm[1.16]:
Change screen object: remove operation/preempt-update? and replace it
with preemption-modulus and operation/discretionary-flush. Use this
to speed up inner loop of screen-update.

* edwin/bufwin.scm[1.289], edwin/bufwiu.scm[1.15],
edwin/bufwmc.scm[1.9]:
Implement `predict-y-limited' and use it in place of `predict-y' to
guarantee that the bounds on predictions are related to the size of
the window rather than the size of the buffer.

* edwin/autosv.scm[1.22], edwin/basic.scm[1.107],
edwin/buffer.scm[1.139], edwin/bufset.scm[1.8],
edwin/comred.scm[1.85], edwin/curren.scm[1.91],
edwin/decls.scm[1.16], edwin/ed-ffi.scm[1.6],
edwin/editor.scm[1.201], edwin/edtstr.scm[1.14],
edwin/edwin.ldr[1.12], edwin/edwin.pkg[1.25],
edwin/filcom.scm[1.145], edwin/input.scm[1.88],
edwin/intmod.scm[1.37], edwin/kmacro.scm[1.33], edwin/make.scm[3.27],
edwin/modlin.scm[1.6], edwin/screen.scm[1.88],
edwin/simple.scm[1.31], edwin/tterm.scm[1.5],
edwin/window.scm[1.154], edwin/xterm.scm[1.15]:
This version of Edwin requires microcode version 11.69 and runtime
version 14.113.

* Implement Emacs-style subprocesses, RCS support, and Shell mode.

* Add code to M-x save-buffers-kill-edwin to request confirmation when
there are modified buffers or active processes.

* Change default handling of Scheme errors that occur while Edwin is
running (i.e. errors in the Edwin implementation): such errors are
now caught, causing a message to be written to the minibuffer, and
aborting the current command. This behavior may be overridden by
the Scheme variable `debug-internal-errors?' or the Edwin variable
`debug-on-internal-error'.

* Change M-x find-alternate-file not to signal an error if the current
buffer is not visiting a file.

* Change Scheme Interaction mode to have input history with same
commands as Shell mode; both are based on Olin Shivers' comint mode.

* Change buffer to have default-directory field that is separate from
the pathname and truename fields. All buffers have a default
directory, even if they aren't visiting files. Change the `cd'
command to change a buffer's default directory. New command `pwd'
shows you the default directory of the current buffer.

* Fix bug in `variable-local-value'. Rewrite implementation of local
variable bindings to improve performance.

* Change filename prompting and completion procedures to make them
more flexible and modular.

1991-03-15 Chris Hanson <[email protected]>

* edwin/comman.scm[1.65]:
Rewrite `invoke-variable-assignment-daemons!' to improve performance.

* edwin/bufwin.scm[1.288], edwin/bufwiu.scm[1.14]:
Fix bug in redisplay: when narrowing or widening a buffer, its windows
sometimes got confused, which could produce various errors.

* edwin/c-mode.scm[1.45], edwin/cinden.scm[1.4],
edwin/dired.scm[1.105], edwin/info.scm[1.97], edwin/loadef.scm[1.8],
edwin/tagutl.scm[1.36]:
Change most auto-loading files to be loaded when Edwin is built. Only
a few rarely used files remain auto-loading now.

* edwin/struct.scm[1.73]:
New procedures provide support for side-effects on permanent marks:
set-mark-index!
move-mark-to!
mark-right-inserting-copy
mark-left-inserting-copy

* edwin/ring.scm[1.10]:
Use `modulo' instead of `remainder' to force ring indexes into the
right range. `remainder' is incorrect if the argument is negative.

* runtime/rgxcmp.scm[1.105]:
Fix fencepost error in `re-compile-char-set'.

* edwin/regexp.scm[1.49]:
Add operations to do regular-expression search and match on strings.

* edwin/macros.scm[1.50]:
* Fix `define-named-structure' to make the definitions of slot indices
integrable.

* Change `define-command' to give a meaningful debugging name to the
procedure that implements the command.

* Change `define-variable' to accept an optional fourth argument,
which is a value validity test.

1991-03-14 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/ymkfile[1.43], microcode/uxio.c[1.12],
microcode/version.h[11.69], microcode/x11base.c[1.18]:
Change callers of `UX_select_input' to call it when the operating
system makes it available. Previously they attempted to predict when
it would be needed, which sometimes failed and is in general
unmodular.

* runtime/process.scm[1.12]:
Delete all subprocesses when exiting Scheme.

* runtime/io.scm[14.23], runtime/process.scm[1.11],
runtime/runtime.pkg[14.99], runtime/version.scm[14.113]:
Add support to send SIGHUP (hangup) signal to subprocesses.
Use of this support requires microcode 11.68 or later (but if not used
older microcodes will work.)

* runtime/rep.scm[14.19]:
Don't print hash number for value that is a number.

* runtime/uerror.scm[14.23]:
Fix typo.

* microcode/osproc.h[1.5], microcode/osterm.h[1.7],
microcode/prosio.c[1.6], microcode/prosproc.c[1.8],
microcode/prosterm.c[1.9], microcode/unxutl/Attic/ymkfile[1.42],
microcode/uxio.c[1.11], microcode/uxproc.c[1.10],
microcode/uxterm.c[1.13], microcode/version.h[11.68],
microcode/x11base.c[1.17]:
* New primitives `process-hangup' and `pty-master-hangup' support
sending of SIGHUP to subprocesses.

* Bug fixes for channel registering and selection.

1991-03-12 Arthur Gleckler <[email protected]>

* sicp/studen.scm[1.5]:
Include RESTART in the list of USER-GLOBAL-NAMES, variables available
after (DISABLE-LANGUAGE-FEATURES). This means students will have
access to it.

1991-03-11 Chris Hanson <[email protected]>

* runtime/io.scm[14.22], runtime/process.scm[1.10],
runtime/runtime.pkg[14.98], runtime/version.scm[14.112]:
Add new procedures for microcode 11.67: `channel-register',
`channel-unregister', `channel-registered?',
`channel-select-then-read', and `subprocess-global-status-tick'.

* microcode/osio.h[1.7], microcode/osproc.h[1.4],
microcode/prosio.c[1.5], microcode/prosproc.c[1.7],
microcode/uxio.c[1.10], microcode/uxio.h[1.2],
microcode/uxproc.c[1.9], microcode/version.h[11.67],
microcode/x11base.c[1.16]:
* New primitives `channel-register', `channel-unregister', and
`channel-registered?' allow registering of a set of channels that is
to be watched for input at certain points.

* New primitive `channel-select-then-read' is like `channel-read', but
returns #T if the given channel has no input but some other
registered channel has some input instead.

* Primitive `x-display-process-events' now returns #T if there are no
input events but a registered channel has some input.

* Primitive `make-subprocess' now permits the "inheritance" of
Scheme's control terminal even when there is none.

* New primitive `process-status-sync-all' synchronizes the status of
all subprocesses: it returns #T iff some status has changed since
the last call to this primitive.

* runtime/uerror.scm[14.22]:
Fix typo in handler for system-call errors.

* runtime/error.scm[14.13]:
Fix typo in `error:divide-by-zero'.

* edwin/display.scm[1.4], edwin/edtstr.scm[1.13],
edwin/edwin.pkg[1.24], edwin/input.scm[1.87], edwin/iserch.scm[1.10],
edwin/lspcom.scm[1.151], edwin/make.scm[3.26],
edwin/screen.scm[1.87], edwin/simple.scm[1.30], edwin/tterm.scm[1.4],
edwin/window.scm[1.153], edwin/winout.scm[1.5],
edwin/xterm.scm[1.14]:
Change keyboard input to use special operations defined by the
display, rather than input ports with standard input operations.

1991-03-10 Chris Hanson <[email protected]>

* runtime/io.scm[14.21], runtime/runtime.pkg[14.97],
runtime/uerror.scm[14.21], runtime/version.scm[14.111]:
Change method by which port errors are signalled. Previously a
condition handler was bound for every I/O operation, which made I/O
painfully slow as each binding cost at least one hundred machine
instructions. Now, an I/O channel can have an associated port, and
when a system-call error occurs, the file descriptor associated with
the error is mapped back to the associated port, if any, and a port
error is signalled instead.

* edwin/edwin.sf[1.9]:
Don't generate full cref by default.

* microcode/utabmd.scm[9.56], microcode/ux.h[1.22]:
Add `syscall_select'.

1991-03-09 Chris Hanson <[email protected]>

* runtime/process.scm[1.9], runtime/runtime.pkg[14.96],
runtime/version.scm[14.110]:
Subprocess support in this version requires microcode version 11.66 or
later.

* Subprocess abstraction changed to use microcode's new process status
synchronization. The procedure `subprocess-status' causes the
status information to be synchronized; subsequently
`subprocess-exit-reason' returns the reason corresponding to that
status. Likewise, the new procedure `subprocess-status-tick'
returns an object representing the time-stamp associated with this
status; when the status changes, the tick is changed to a new value.
Ticks are unique objects that are comparable using `eq?'; they are
not ordered.

* New procedure `subprocess-remove!' removes a property from a
subprocess (maybe this is a bad name?).

* microcode/osproc.h[1.3], microcode/prosproc.c[1.6],
microcode/uxproc.c[1.8], microcode/uxproc.h[1.3],
microcode/version.h[11.66]:
* Process status now synchronized as follows: new primitive
`process-status-sync' freezes the status and exit reason, returning
#T if it has changed since the last synchronization, or #F if it
hasn't changed. Primitives `process-status' and `process-reason'
return the frozen status information but do not affect the
synchronization.

* Primitives `process-wait' and `process-continue-foreground' no
longer return a value. Previously they returned the process status.

1991-03-08 Chris Hanson <[email protected]>

* microcode/prosproc.c[1.5], microcode/uxproc.c[1.7]:
Permit a process to be deleted regardless of its status.

* runtime/process.scm[1.8], runtime/runtime.pkg[14.95]:
Change procedures that return a process status to return just the
status and not the exit reason. Add new procedure
`subprocess-exit-reason' to get that information.

* microcode/prosproc.c[1.4], microcode/uxproc.c[1.6]:
Change `process-reason' primitive to return 0 when the process is
running, rather than signalling an error.

* microcode/osterm.h[1.6], microcode/prosterm.c[1.8],
microcode/uxterm.c[1.12], microcode/version.h[11.65]:
Add new primitive `have-ptys?'.

1991-03-07 Chris Hanson <[email protected]>

* runtime/process.scm[1.7], runtime/runtime.pkg[14.94]:
Retain `filename' and `arguments' fields of process in subprocess
structure, and provide accessors to get them. Add a properties list
to the subprocess structure.

1991-03-06 Chris Hanson <[email protected]>

* runtime/emacs.scm[14.8], runtime/rep.scm[14.18],
runtime/runtime.pkg[14.93]:
Don't show hash number when REPL value is an interned symbol.

* microcode/comutl.c[1.20]:
Fix stack-address primitives to work on machines that don't have
a trivial mapping between address and datum.

* sicp/sbuild.scm[1.3], sicp/studen.scm[1.4]:
Update for new error system and changes to REPL names.

* runtime/option.scm[14.11]:
Don't load option files more than once.

* runtime/error.scm[14.12], runtime/runtime.pkg[14.92],
runtime/version.scm[14.109]:
Add new procedure `bind-default-condition-handler'.

* runtime/arith.scm[1.18]:
Change an instance of `error:bad-range-argument' to
`error:divide-by-zero'.

* compiler/machines/bobcat/make.scm-68040[4.80],
compiler/machines/mips/make.scm-big[4.80],
compiler/machines/mips/make.scm-little[4.80],
compiler/machines/spectrum/make.scm[4.80],
compiler/rtlgen/fndvar.scm[1.6]:
Fix bug: RTL generation of return statement whose value is a constant
or a trivially-closed procedure was incorrect. Part of the code
generation assumed that the value would be used directly, while
another part assumed that it would be stored in a register and then
the register would be referenced. Now both parts agree that the value
is used directly in this case.

* microcode/bignum.c[9.35], microcode/version.h[11.64]:
Fix typo in bignum =.

1991-03-06 Guillermo J. Rozas <[email protected]>

* compiler/documentation/porting.guide[1.18]:
Fix typo and add ADD-PSEUDO-REGISTER-ALIAS!

1991-03-05 Guillermo J. Rozas <[email protected]>

* compiler/documentation/porting.guide[1.17]:
Merge in some of Arthur's and Markf's comments. Tag the rest.

1991-03-02 Guillermo J. Rozas <[email protected]>

* runtime/site.scm.unix[1.5]:
Make call/cc more obvious.

1991-03-01 Chris Hanson <[email protected]>

* compiler/machines/bobcat/compiler.sf[1.13]:
Don't generate full cref by default.

* runtime/io.scm[14.20], runtime/io.scm[14.19]:
Fix other input-buffer operations to recover gracefully when the
buffer's channel is closed.

* cref/cref.pkg[1.4], cref/forpkg.scm[1.5], cref/make.scm[1.7],
cref/toplev.scm[1.4]:
* Add new procedure, CREF/GENERATE-CREF-UNUSUAL, that writes a ".cref"
file containing only the unusual cref information, such as unbound
variables or multiple definitions. Change
CREF/GENERATE-CONSTRUCTORS to call this procedure.

* Rewrite cref formatting code to improve performance. The
improvement seems only slight.

* runtime/version.scm[14.108]:
*** empty log message ***

* runtime/advice.scm[14.9]:
Fix typo in last change.

* runtime/io.scm[14.18], runtime/list.scm[14.13],
runtime/process.scm[1.6], runtime/runtime.pkg[14.91]:
* New subprocess design requires microcode 11.63 or later.

* New procedures `make-pipe', `weak-delq!'.

* Procedures for constructing generic I/O ports and for manipulating
I/O channels are now exported to the global environment.

* Automatically close input channels when EOF is encountered.

* runtime/runtime.sf[14.6]:
Use `cref/generate-constructors' instead of `cref/generate-all'.

* microcode/extern.h[9.40], microcode/hooks.c[9.42],
microcode/interp.c[9.61], microcode/osio.h[1.6],
microcode/osproc.h[1.2], microcode/osscheme.c[1.2],
microcode/osscheme.h[1.3], microcode/prims.h[9.38],
microcode/prosfile.c[1.2], microcode/prosio.c[1.4],
microcode/prosproc.c[1.3], microcode/utabmd.scm[9.55],
microcode/utils.c[9.49], microcode/ux.c[1.7], microcode/ux.h[1.21],
microcode/uxctty.c[1.7], microcode/uxio.c[1.9],
microcode/uxproc.c[1.5], microcode/uxproc.h[1.2],
microcode/uxsig.c[1.7], microcode/version.h[11.63]:
* New primitive `make-pipe'.

* Redesign of subprocess primitives. New primitives are lower-level,
permitting more flexibility, and support job control properly.

1991-03-01 Guillermo J. Rozas <[email protected]>

* compiler/documentation/porting.guide[1.16]:
First draft is finished.

* compiler/documentation/porting.guide[1.15]:
Add text describing fixnums and calls to the interface.

1991-02-28 Guillermo J. Rozas <[email protected]>

* compiler/documentation/porting.guide[1.14]:
Add text describing hairy invocation rules.

* compiler/documentation/porting.guide[1.13]:
First cut at RTL statement rules.

1991-02-27 Guillermo J. Rozas <[email protected]>

* compiler/documentation/porting.guide[1.12]:
Documentation for predicate rules.

* compiler/documentation/porting.guide[1.11],
compiler/documentation/porting.guide[1.10]:
New delta.

1991-02-26 Chris Hanson <[email protected]>

* microcode/bchpur.c[9.52], microcode/unxutl/Attic/ymkfile[1.41]:
"bchpur.c" must include "zones.h".

* microcode/bchmmg.c[9.58]:
Fix broken function definitions.

1991-02-26 Guillermo J. Rozas <[email protected]>

* compiler/documentation/porting.guide[1.9]:
Yet more text.

* compiler/documentation/porting.guide[1.8]:
Yet more text

1991-02-24 Guillermo J. Rozas <[email protected]>

* compiler/documentation/porting.guide[1.7]:
Yet more text.

* microcode/bchmmg.c[9.57], microcode/bchpur.c[9.51],
microcode/boot.c[9.67], microcode/default.h[9.36],
microcode/fasload.c[9.60], microcode/memmag.c[9.45],
microcode/purify.c[9.45], microcode/purutl.c[9.40],
microcode/stack.h[9.29], microcode/uxtrap.c[1.8]:
Put a little patch in uxtrap.c and the memory management to detect
cases when the stack has overflowed and constant space has been
overwritten.

Ansify various memory management files.

1991-02-23 Guillermo J. Rozas <[email protected]>

* compiler/documentation/porting.guide[1.6]:
Initial description of all assembler files.

* compiler/documentation/porting.guide[1.5]:
Some more text.

* compiler/documentation/porting.guide[1.4]:
Yet more text.

1991-02-22 Chris Hanson <[email protected]>

* runtime/make.scm[14.28]:
Initialize the condition system a little later. It depends on the
lambda abstraction being initialized.

* runtime/uerror.scm[14.20], runtime/uerror.scm[14.19]:
Fix typo in error name. This would have been caught by type-checking
in compiled code.

1991-02-22 Guillermo J. Rozas <[email protected]>

* compiler/documentation/porting.guide[1.3]:
Yet more text.

1991-02-21 Guillermo J. Rozas <[email protected]>

* compiler/documentation/porting.guide[1.2]:
Some more text...

* microcode/bignum.c[9.34]:
bignum_trim did not produce 0-length bignums even when there were no
bits set.

1991-02-19 Chris Hanson <[email protected]>

* runtime/make.scm[14.27], runtime/option.scm[14.10],
runtime/runtime.pkg[14.90], runtime/version.scm[14.107]:
Change subprocess code to be a loadable option.

1991-02-16 Guillermo J. Rozas <[email protected]>

* cref/cref.sf[1.3]:
Allow cref to generate itself correctly the first time by using the
triv.* files.

* microcode/fixnum.c[9.33], microcode/version.h[11.62]:
Fix bug in fixnum-lsh. It was behaving like an arithmetic shift
rather than a logical shift.

* compiler/machines/vax/rulfix.scm[1.5]:
Improve fixnum->object to use a temporary register if necessary.
This allows it to be targetted to the stack or heap.

* compiler/machines/vax/rulfix.scm[1.4]:
Fix bug by which fixnum-lsh was actually fixnum-ash (arithmetic shift
rather than logical).

1991-02-15 Chris Hanson <[email protected]>

* compiler/base/toplev.scm[4.32], compiler/base/toplev.scm[4.31],
compiler/etc/stackp.scm[1.6], compiler/etc/xcbfdir.scm[1.6],
compiler/machines/bobcat/make.scm-68040[4.79],
compiler/machines/mips/make.scm-big[4.79],
compiler/machines/mips/make.scm-little[4.79],
compiler/machines/spectrum/make.scm[4.79], edwin/artdebug.scm[1.4],
edwin/autold.scm[1.49], edwin/basic.scm[1.106],
edwin/bufwin.scm[1.287], edwin/comman.scm[1.64],
edwin/comred.scm[1.84], edwin/comwin.scm[1.140],
edwin/editor.scm[1.200], edwin/edwin.pkg[1.23],
edwin/evlcom.scm[1.19], edwin/filcom.scm[1.144],
edwin/fileio.scm[1.92], edwin/info.scm[1.96], edwin/iserch.scm[1.9],
edwin/make.scm[3.25], edwin/paths.scm[1.8], edwin/utils.scm[1.21],
runtime/rgxcmp.scm[1.104]:
Changes for new error system in runtime 14.106.

* runtime/Attic/syntax.scm[14.14], runtime/advice.scm[14.8],
runtime/arith.scm[1.17], runtime/contin.scm[14.5],
runtime/dbgcmd.scm[14.11], runtime/debug.scm[14.24],
runtime/dragon4.scm[1.6], runtime/emacs.scm[14.7],
runtime/error.scm[14.11], runtime/gc.scm[14.6],
runtime/global.scm[14.21], runtime/hashtb.scm[1.2],
runtime/infstr.scm[1.4], runtime/infutl.scm[1.20],
runtime/input.scm[14.12], runtime/intrpt.scm[14.6],
runtime/io.scm[14.17], runtime/lambda.scm[14.8],
runtime/load.scm[14.20], runtime/make.scm[14.26],
runtime/numpar.scm[14.7], runtime/pathnm.scm[14.11],
runtime/process.scm[1.5], runtime/record.scm[1.8],
runtime/rep.scm[14.17], runtime/runtime.pkg[14.89],
runtime/scode.scm[14.11], runtime/scomb.scm[14.10],
runtime/uerror.scm[14.18], runtime/unsyn.scm[14.11],
runtime/unxprm.scm[1.11], runtime/version.scm[14.106],
runtime/where.scm[14.9], runtime/x11graph.scm[1.7],
runtime/xeval.scm[1.3]:
Changes to error system:

* Complete redesign of the error system. Conditions now have named
fields like records, and an interface similar to that of the record
abstraction. Condition types have single inheritance instead of
multiple inheritance; the latter can be implemented with some small
effort should someone need it. Significantly richer taxonomy of
condition types. New "restart" mechanism like that of Common Lisp.
Hooks for overriding default handlers for errors and warnings.

* The special forms `error' and `bkpt' have been changed to be
procedures.

* `error:datum-out-of-range' no longer accepts a second argument; use
new procedure `error:bad-range-argument' instead.

* `error:illegal-datum' has been eliminated; use either
`error:wrong-type-datum' or `error:wrong-type-argument' instead.

Changes to REPL:

* ";Value" message produced by REPL now prints out a hash number if
the value is a pointer object.

* New procedure `ve' starts a sub-REPL in a given environment.

* New procedure `restart' selects a restart option and invokes it. If
invoked with no arguments, it presents a list of options and prompts
for the user to select one by number; otherwise it is called with
one argument, an option number.

* The variable `cmdl-interrupt/abort-top-level/reset?' has been
eliminated.

* Eliminated "proceed points" and "proceed continuations". These are
replaced by new "restarts" mechanism.

* `cmdl-message/active' now passes the current cmdl object as an
argument to the actor procedure.

* The procedures `abort-to-nearest-driver',
`abort-to-previous-driver', and `abort-to-top-level-driver' have
been eliminated. The procedures `abort->nearest',
`abort->previous', and `abort->top-level' have been generalized to
accept a string as an argument; use these in place of the eliminated
procedures.

Other changes:

* Debugger has a new command, K, that chooses a restart option and
invokes it.

* New predicates `interned-symbol?' and `uninterned-symbol?'.

* compiler/rtlgen/rtlgen.scm[4.24]:
Continuations that are closed in IC environments save their closing
environment on the stack. The next-continuation-offset must account
for that environment; previously it wasn't.

* compiler/etc/asm.scm[1.2]:
Eliminate syntax phase for assembly since assembler now directly
accepts LAP.

* compiler/machines/bobcat/make.scm-68040[4.78],
compiler/machines/mips/make.scm-big[4.75],
compiler/machines/mips/make.scm-little[4.75],
compiler/machines/spectrum/make.scm[4.77]:
Minor bug fixes.

1991-02-15 Guillermo J. Rozas <[email protected]>

* compiler/machines/vax/make.scm[4.78]:
Update to match 68k version after CPH's fix of top-level "illegal
return address" bug.

* microcode/s/Attic/ultrix.m4[1.4]:
Enhance to allow for command line definitions. This makes it easier
to share a source that works for pcc, gcc, and Vax-11 C (VMS).

* compiler/machines/vax/assmd.scm[4.6],
compiler/machines/vax/compiler.cbf[1.4],
compiler/machines/vax/compiler.pkg[1.6],
compiler/machines/vax/compiler.sf[1.3],
compiler/machines/vax/dassm1.scm[4.5],
compiler/machines/vax/dassm2.scm[4.10],
compiler/machines/vax/decls.scm[4.5],
compiler/machines/vax/dsyn.scm[1.7],
compiler/machines/vax/instr3.scm[1.9],
compiler/machines/vax/insutl.scm[4.3],
compiler/machines/vax/lapgen.scm[4.10],
compiler/machines/vax/machin.scm[4.7],
compiler/machines/vax/make.scm[4.46],
compiler/machines/vax/rules1.scm[4.7],
compiler/machines/vax/rules2.scm[4.4],
compiler/machines/vax/rules3.scm[4.8],
compiler/machines/vax/rules4.scm[4.3],
compiler/machines/vax/rulfix.scm[1.3], microcode/m/Attic/vax.h[1.3]:
Update for 7.1 port.

1991-02-14 Guillermo J. Rozas <[email protected]>

* compiler/base/crstop.scm[1.8]:
Change default extensions for the cross compiler to avoid "double
extensions" that confuse shells.

* compiler/back/lapgn2.scm[1.19]:
Fix with-register-copy-alias! and register-copy-if-available to handle
machine registers as `source' as well as pseudo registers.
This is required by the new, smaller, rule set.

1991-02-12 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/rules3.scm[4.28]:
Eliminate dlink-procedure-header, no longer necessary after
entry:compiler-interrupt-dlink was written.

1991-02-06 Guillermo J. Rozas <[email protected]>

* compiler/base/crsend.scm[1.5], compiler/base/crstop.scm[1.7]:
Change default extensions to make shell-level tools easier to write.

* compiler/etc/xcbfdir.scm[1.5]:
Fix bug in last patch.

* compiler/etc/xcbfdir.scm[1.4]:
Change extension for cross-compiler so that shell tools will work more
easily.

1991-02-05 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/machin.scm[4.23]:
Fix typo: gcd-fixnum appeared as gc-fixnum.

1991-01-31 Hal Abelson <[email protected]>

* runtime/equals.scm[14.3]:
Fix bug in eqv? and equal? by which = numbers represented differently
(eg. fixnum vs. bignum) were deemed unequal.

* microcode/bitstr.c[9.47]:
Fix off-by-one error in bit-string->unsigned-integer.
If the bit-string has exactly FIXNUM_LENGTH bits, it still
falls in the fixnum range.

1991-01-30 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/lapgen.scm[4.39],
compiler/machines/bobcat/lapgen.scm[4.38]:
Fossil removal.

1991-01-28 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/rules3.scm[4.27]:
Eliminate some unused incorrect code.

1991-01-26 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.88], runtime/uerror.scm[14.17],
runtime/utabs.scm[14.5], runtime/version.scm[14.105]:
Make changes to handle new system-call errors that are generated by
microcode version 11.61. This runtime system will continue to work
with older microcode versions.

* runtime/unxprm.scm[1.10]:
Define `make-directory'.

1991-01-24 Chris Hanson <[email protected]>

* microcode/prosio.c[1.3]:
Flush obsolete file-output primitives.

* microcode/errors.h[9.37]:
Fix typo in comment.

* microcode/gpio.c[1.8], microcode/ostop.h[1.3],
microcode/prosenv.c[1.4], microcode/pruxfs.c[9.44],
microcode/unxutl/Attic/ymkfile[1.40], microcode/utabmd.scm[9.54],
microcode/utils.c[9.48], microcode/ux.c[1.6], microcode/ux.h[1.20],
microcode/ux.h[1.19], microcode/ux.h[1.18], microcode/uxenv.c[1.3],
microcode/uxfile.c[1.4], microcode/uxfs.c[1.3],
microcode/uxio.c[1.8], microcode/uxproc.c[1.4],
microcode/uxsock.c[1.3], microcode/uxterm.c[1.11],
microcode/uxtop.c[1.8], microcode/version.h[11.61]:
Implement mechanism to pass system-call name and error code to Scheme
error handler when system-call errors occur.

* microcode/fixobj.h[9.29]:
Add slots for system call names and error codes.

* microcode/errors.h[9.36]:
Add system-call error.

* microcode/types.h[9.32]:
Add record type.

1991-01-23 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/rules1.scm[4.34]:
Fix a bug in statement rule for

(ASSIGN (OFFSET (REGISTER (? address)) (? offset))
(BYTE-OFFSET-ADDRESS (OFFSET (REGISTER (? address)) (? offset))
(? n)))

* compiler/documentation/cmpint.txt[1.8]:
Fix bad reference.

* compiler/documentation/cmpint.txt[1.7]:
Fix bug. First entry for STORE_EXECUTE_CACHE_CODE should have been an
entry for STORE_EXECUTE_CACHE_ADDRESS.

1991-01-19 Chris Hanson <[email protected]>

* rcs/Attic/make.scm[1.2], rcs/Attic/rcs.sf[1.2], rcs/format.scm[1.2],
rcs/logmer.scm[1.2], rcs/object.scm[1.2], rcs/rcs.pkg[1.2]:
Changes for new parser, which corresponds to RCS 5.5.

1991-01-18 Guillermo J. Rozas <[email protected]>

* microcode/generic.c[9.35], microcode/version.h[11.60]:
Fix bug in INDIRECT_TEST_1 and INDIRECT_TEST_2 by adding a use of
BOOLEAN_TO_OBJECT.

1991-01-16 Chris Hanson <[email protected]>

* microcode/Attic/oscond.h[1.4], microcode/s/Attic/nextos.h[1.3],
microcode/ux.h[1.17], microcode/uxtrap.c[1.7]:
Add conditionalization to distinguish versions 1.0 and 2.0 of NeXT OS.

1991-01-16 Guillermo J. Rozas <[email protected]>

* compiler/documentation/cmpint.txt[1.6]:
Document new macros and make some minor changes.

1991-01-15 Chris Hanson <[email protected]>

* microcode/version.h[11.59.1.1]:
Fixes to terminal interface for NeXT.

* edwin/tterm.scm[1.3]:
Change to use `tty-x-size' and `tty-y-size' instead of termcap's
values for these numbers. This is because termcap uses static data,
while the primitives use dynamic data if available.

* microcode/uxtty.c[1.5]:
Add simple support for TIOCGWINSZ.

* edwin/screen.scm[1.86]:
Flush two unused slots in the `screen' data structure.

* edwin/buffrm.scm[1.38]:
When splitting a window, don't try to update the `truncate-lines' slot
unless the window's buffer has been set.

1991-01-11 Mark Friedman <[email protected]>

* runtime/defstr.scm[14.15]:
Added support for RECORD type structures (i.e. structures with records
as their underlying type). In some sense of course this is redundant
since records and untyped structures are both tagged vectors, but this
allows you to use DEFINE-STRUCTURE to generate the constructor,
accessor, settor and predicate definitions while also allowing you to
interrogate the record for those procedures.

1991-01-08 Chris Hanson <[email protected]>

* microcode/cmpauxmd/mc68k.m4[1.15]:
Disable signalling NaNs on 68881.

1991-01-07 Chris Hanson <[email protected]>

* microcode/ux.c[1.5], microcode/ux.h[1.16], microcode/uxctty.c[1.6],
microcode/uxterm.c[1.10], microcode/uxterm.h[1.3],
microcode/uxutil.c[1.2]:
Change terminal-interface code to handle ^S/^Q (and several related
problems) on Ultrix and BSD.

1991-01-05 Chris Hanson <[email protected]>

* microcode/uxterm.c[1.9]:
In nonbuffered input mode, disable ^S and ^V (and all other special
characters) on BSD systems.

1991-01-02 Chris Hanson <[email protected]>

* microcode/m/Attic/next.h[1.2]:
NeXT needs 6-bit type code.

1990-12-30 Chris Hanson <[email protected]>

* microcode/uxtrap.c[1.6]:
Patch around NeXT's missing "etext".

1990-12-29 Chris Hanson <[email protected]>

* microcode/bignum.c[9.33]:
Fix bugs in standalone code.

* microcode/unxutl/Attic/config[1.10],
microcode/unxutl/Attic/config[1.9], microcode/ux.h[1.15]:
Update conditionalizations for NeXT.

1990-12-28 Hal Abelson <[email protected]>

* runtime/conpar.scm[14.21]:
Fix fencepost error in hardware traps.

1990-12-11 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/makefile[1.11]:
Fix weird bug in Makefile.

* microcode/unxutl/Attic/ymkfile[1.39]:
Eliminate "dmpwrld.c" -- it will require more careful integration.

* microcode/Attic/posixtyp.h[1.3]:
Add changes for SunOS 4.1.

1990-12-10 Chris Hanson <[email protected]>

* microcode/version.h[11.59]:
Change release string to indicate beta test.

1990-12-01 Chris Hanson <[email protected]>

* microcode/cmpintmd/hppa.h[1.19], microcode/hppacach.c[1.2],
microcode/hppacach.h[1.3], microcode/unxutl/Attic/ymkfile[1.38],
microcode/version.h[11.58]:
Change HP-PA caching mechanism to use a single database file, stored
in the library directory, that contains entries indexed by model type.
The `hppacache' program now updates that database by adding new
entries to it. The filename of the database is given as an explicit
argument.

* microcode/option.c[1.8], microcode/option.h[1.2]:
Make the `search_path_for_file' procedure be non-static.

1990-11-30 Chris Hanson <[email protected]>

* microcode/cmpintmd/hppa.h[1.18]:
Don't need to define C_SCHEME.

1990-11-29 Chris Hanson <[email protected]>

* edwin/tterm.scm[1.2]:
Fix thinko in `console-scroll-lines-up'.

* microcode/m/Attic/mips.h[1.4]:
Pass "-w" switch to compiler to eliminate needless warning messages.

* microcode/s/Attic/ultrix.h[1.12]:
"-YPOSIX" must be given both for compiling and linking.

* compiler/machines/mips/lapgen.scm[1.3]:
Eliminate use of syntactic keyword as variable name.

* microcode/bchdmp.c[9.54], microcode/bchdmp.c[9.53]:
Pre-ANSI compilers don't handle automatic arrays declared as [].

1990-11-28 Chris Hanson <[email protected]>

* microcode/obstack.h[1.3]:
Work around HP-PA compiler bug: can't have conditional expression with
one arm of type void, even if entire expression is in effect position.

* microcode/dmpwrld.c[9.36]:
Don't define `CANNOT_UNEXEC' for spectrum.

* compiler/machines/mips/make.scm-big[4.74],
compiler/machines/mips/make.scm-little[4.74]:
*** empty log message ***

* compiler/machines/mips/rules3.scm[1.4]:
Eliminate several misplaced commas.

* compiler/machines/mips/instr2a.scm[1.2]:
Fix bug in definition of bgezal and bltzal instructions.

* compiler/machines/mips/lapgen.scm[1.2]:
Fix typo in `fp-copy'.

* microcode/unxutl/Attic/ymkfile[1.37]:
Don't include "dmpwrld.c" except for certain machines on which it is
known to work.

* microcode/dmpwrld.c[9.35]:
Fix typo in symbol name.

* microcode/os.h[1.2], microcode/unxutl/Attic/ymkfile[1.36]:
Don't include "posixtype.h" unless "oscond.h" is included first.

* microcode/obstack.c[1.2], microcode/obstack.h[1.2]:
Various changes from FSF.

* microcode/option.c[1.7]:
Add extra include file required by Ultrix; technically HP-UX requires
this also, but HP-UX doesn't get upset if it isn't given.

1990-11-27 Chris Hanson <[email protected]>

* microcode/option.c[1.6]:
Fix bug in library path parser. Also add code to transform relative
library directories into absolute form.

* microcode/version.h[11.57]:
*** empty log message ***

* microcode/Attic/config.h[9.59]:
Adjust comment for i386.

* microcode/unxutl/Attic/cf-dist.h[1.13]:
Add processor type for i386.

* microcode/scheme.h[9.34]:
Eliminate illegal `#include SITE_INCLUDE_FILE'.

* microcode/unxutl/Attic/config[1.8]:
Add entry for i386 running SysV.

* microcode/interp.c[9.60], microcode/lookup.c[9.45],
microcode/object.h[9.36]:
Fix illegal `#if'.

1990-11-26 Guillermo J. Rozas <[email protected]>

* microcode/utabmd.scm[9.53]:
Add UNKNOWN-PRIMITIVE-CONTINUATION error, and PRIMITIVE-CONTINUE
return code.

1990-11-21 Chris Hanson <[email protected]>

* edwin/hlpcom.scm[1.94]:
Fix bug in code that initialize the TUTORIAL file.

* edwin/filcom.scm[1.143]:
Catch file errors when loading "ffi" database.

1990-11-21 Guillermo J. Rozas <[email protected]>

* microcode/findprim.c[9.43]:
Ansi-fy all procedure headers.

* microcode/ppband.c[9.42]:
Fix fixnum printing.

Fix NMV data printing.

Make NMV data print as characters as well as in hex.

* microcode/bchdmp.c[9.52], microcode/bintopsb.c[9.47],
microcode/dump.c[9.32], microcode/errors.h[9.35],
microcode/fasdump.c[9.49], microcode/fasload.c[9.59],
microcode/interp.c[9.59], microcode/load.c[9.30],
microcode/ppband.c[9.41], microcode/prosfs.c[1.2],
microcode/psbtobin.c[9.42], microcode/returns.h[9.39],
microcode/version.h[11.56]:
Fasload and Fasdump now handle channels as well as files.

A primitive suspension mechanism has been implemented (prmcon.[ch])
and is used by fasload to continue if a GC is needed, rather than
aborting and starting from scratch.

* microcode/unxutl/Attic/ymkfile[1.35]:
Add prmcon.c and dependencies on prmcon.h .

1990-11-20 Chris Hanson <[email protected]>

* microcode/uxsig.c[1.6]:
Change interactive keyboard interrupt's help message to advertise
option characters that are consistent with GNU Emacs interface.

1990-11-19 Chris Hanson <[email protected]>

* compiler/base/lvalue.scm[4.19], compiler/base/proced.scm[4.17],
compiler/fgopt/delint.scm[1.3], compiler/fgopt/order.scm[4.15],
compiler/machines/bobcat/make.scm-68040[4.77]:
Fix bug: `delete-integrated-parameters' was deleting parameter's in a
procedure's interface only when the `procedure-interface-optimizible?'
said that it was OK to do so. However, `lvalue-integrated?', used in
many places, would return #t for variables in that interface,
independent of `procedure-interface-optimizible?'. The fix gets
rid of `procedure-interface-optimizible?' and alters
`lvalue-integrated?' to take the procedure interface restrictions into
account.

* runtime/version.scm[14.104]:
*** empty log message ***

* runtime/load.scm[14.19]:
Various formatting changes.

* runtime/option.scm[14.9]:
Don't use `system-library-pathname'. Instead use
`system-library-directory-pathname' to find the options directory, and
then load the option file from there.

1990-11-16 Arthur Gleckler <[email protected]>

* microcode/ppband.c[9.40]:
- Inhibit checksums in load.c
- Merge with OS/2 microcode.
- ANSIfy function headers.

1990-11-16 Chris Hanson <[email protected]>

* edwin/lincom.scm[1.105]:
`indent-relative' changed to take no interactive arguments, since it
is always called that way when used as value of
`indent-line-procedure'.

* edwin/paths.scm[1.7], edwin/paths.scm[1.6]:
Change to use new system-library pathname procedures. Requires runtim
14.103 or later.

1990-11-15 Chris Hanson <[email protected]>

* runtime/pathnm.scm[14.10], runtime/savres.scm[14.17]:
Change `system-library-pathname' so that it signals an error if it
can't find the file.

* runtime/pathnm.scm[14.9]:
Change `system-library-directory-pathname' so that it signals an error
if its argument is #F and none of the directories in the library path
exist.

* edwin/make.scm[3.24], edwin/paths.scm[1.5], sicp/studen.scm[1.3]:
Change to use new system-library pathname procedures. Requires runtim
14.103 or later.

* runtime/make.scm[14.25], runtime/option.scm[14.8],
runtime/pathnm.scm[14.8], runtime/runtime.pkg[14.87],
runtime/savres.scm[14.16], runtime/version.scm[14.103]:
Use new primitive `microcode-library-path', if present, to get a
sequence of library directory names.

Change `system-library-directory-pathname' to search through this
sequence; also change it to accept an argument which is the name of a
subdirectory to look for.

New procedure `system-library-pathname' searches for a given file in
one of the library directories.

`load-option' and `disk-restore' changed to use
`system-library-pathname'.

* microcode/unxutl/Attic/y300.lcl[1.16]:
Link "dmpwrld" into Scheme.

* microcode/unxutl/Attic/ymkfile[1.34]:
Link "dmpwrld" into Scheme.
Fix up several incorrect dependency sets.

* microcode/fasload.c[9.58]:
Change `reload-band-name' to return `option_band_file' if no
`disk-restore' has been performed since Scheme was started.

* microcode/boot.c[9.66]:
Add new primitive `microcode-library-path'.

* runtime/infutl.scm[1.19]:
Permit a compiled-code block's debugging-info to be #F. In
that case, assume there is no debugging-info available.

* runtime/rep.scm[14.16], runtime/runtime.pkg[14.86]:
Change GE and GST to change top-level defaults only if in the
top-level REPL. Eliminate VE, VST, %GE, %VE, %GST, %VST, %IN, %OUT.
Change RE to clobber the reader history with the thing it is
re-evaluating. Change prompt-for-confirmation to print out invalid
characters.

* microcode/option.c[1.5]:
Fix another typo.

* compiler/machines/spectrum/instr3.scm[1.2]:
Eliminate use of `cond' as variable name.

* compiler/machines/spectrum/make.scm[4.76],
microcode/version.h[11.55]:
*** empty log message ***

* microcode/uxterm.c[1.8]:
For cooked input, don't turn on ECHO or CRMOD unless they were on when
Scheme was started. For cooked output, don't turn on OPOST (turn off
LLITOUT) unless it was on (off) when Scheme was started.

* microcode/uxsig.c[1.5]:
Disable SIGPIPE. This can happen under a variety of circumstances,
and we almost never want Scheme to terminate (a possible exception
being when it happens on stdout). According to HP-UX documentation,
disabling this signal causes the system calls that would have
generated it to return EPIPE instead, which requires no special work
for us to handle.

1990-11-14 Chris Hanson <[email protected]>

* compiler/machines/spectrum/rulfix.scm[4.37], microcode/option.c[1.4],
microcode/prosterm.c[1.7], microcode/pruxsock.c[1.3],
microcode/x11term.c[1.14]:
Gaak! Fix nasty typo.

* edwin/input.scm[1.86]:
Generate meaningful error if EOF encountered in keyboard input port.

* edwin/editor.scm[1.199], edwin/edwin.pkg[1.22]:
Make `edwin' be an alias for `edit'.

* sicp/compat.scm[1.2], sicp/genenv.scm[1.2], sicp/graphics.scm[1.2],
sicp/sbuild.scm[1.2], sicp/studen.scm[1.2]:
Various small cleanups for 7.1 release.

* microcode/dmpwrld.c[9.34]:
Eliminate conflicting external declaration.

* microcode/boot.c[9.65]:
Add new primitives to save and restore a string through a
disk-restore. Change `get-unused-command-line' to return the unused
arguments on the first call, and #F on subsequent calls.

* microcode/option.c[1.3]:
Fix handling of standard filename options. Must not perform library
search on absolute pathnames.

* runtime/savres.scm[14.15]:
Check for unused command-line arguments when Scheme starts.

* runtime/io.scm[14.16], runtime/runtime.pkg[14.85]:
New operations on input-buffer for saving and restoring the contents
of the buffer. These are used by the console input port to preserve
the buffer's contents through a disk-restore.

* runtime/global.scm[14.20]:
Change `fasdump' to return `unspecific'.

* microcode/unxutl/Attic/y300.lcl[1.15]:
OK to make kitscheme now.

* microcode/version.h[11.54], runtime/version.scm[14.102]:
*** empty log message ***

* microcode/s/Attic/hpux.h[1.8]:
Don't define _HPUX_SOURCE.

* microcode/mul.c[9.30], microcode/unxutl/Attic/ymkfile[1.33]:
Use MC68010 instead of MC68020.

* microcode/Attic/config.h[9.58]:
Use DISABLE_HISTORY instead of COMPILE_HISTORY.
Use MC68010 instead of MC68020.

* microcode/history.h[9.27], microcode/hooks.c[9.41],
microcode/unxutl/Attic/cf-dist.h[1.12]:
Use DISABLE_HISTORY instead of COMPILE_HISTORY.

* microcode/option.c[1.2]:
Fix typo in output format.

1990-11-13 Arthur Gleckler <[email protected]>

* runtime/runtime.pkg[14.84]:
Export CLOSE-TCP-SERVER-SOCKET to initial environment.

1990-11-13 Chris Hanson <[email protected]>

* microcode/Attic/config.h[9.57], microcode/bchmmg.c[9.56],
microcode/boot.c[9.64], microcode/default.h[9.35],
microcode/dmpwrld.c[9.33], microcode/extern.h[9.39],
microcode/hooks.c[9.40], microcode/hppacach.h[1.2],
microcode/osscheme.h[1.2], microcode/term.c[1.4],
microcode/unxutl/Attic/ymkfile[1.32], microcode/ux.h[1.14],
microcode/uxsig.c[1.4], microcode/uxtop.c[1.7],
microcode/uxtrap.c[1.5], microcode/uxtty.c[1.4],
microcode/version.h[11.53]:
* Consolidate command-line option processing. Several new options:
-large, -edwin, -library, -option-summary. Each major option now
has a two-step default: first an environment variable is checked,
and if that doesn't exist, a built-in default is used.

The point of these changes is to permit a Scheme executable program
to have sufficient flexibility that it can be installed at many
sites without modification to the built-in defaults.

* Move all option defaults and option specifications to new file
"option.c".

* New primitive `get-unused-command-line' returns only that part of
the command line that was left unused by the option-processing code.

* Rename `parent_process_is_emacs' to `option_emacs_subprocess'.

* Move all specialized exit handling to "term.c".

* Move several macro defaults from "default.h" to the files in which
they are referenced.

1990-11-12 Chris Hanson <[email protected]>

* microcode/osio.h[1.5], microcode/uxfile.c[1.3]:
Add new channel types for character and block devices.

* runtime/io.scm[14.15]:
Eliminate overlong line. Change iterative algorithm to recursive.

* runtime/io.scm[14.14]:
Add `character-device' and `block-device' file types.

1990-11-11 Chris Hanson <[email protected]>

* microcode/uxctty.c[1.5]:
Initialize file descriptors of `struct terminal_state_recording'
variables.

1990-11-10 Arthur Gleckler <[email protected]>

* runtime/io.scm[14.13]:
Fix braino in change making INPUT-BUFFER/READ-UNTIL-DELIMITER a linear
time algorithm.

1990-11-10 Guillermo J. Rozas <[email protected]>

* microcode/unxutl/Attic/y300.lcl[1.14]:
Update kitscheme to use libndvio, rather than libdvio. This solves
the problems with the GNU linker.

1990-11-09 Arthur Gleckler <[email protected]>

* runtime/io.scm[14.12]:
Change INPUT-BUFFER/READ-UNTIL-DELIMITER to a linear time algorithm.
Previously was quadratic time when more than one buffer-full was read through.

* runtime/socket.scm[1.2]:
Change OPEN-TCP-SERVER-SOCKET to take a service name, not a port number.

1990-11-09 Chris Hanson <[email protected]>

* microcode/uxio.c[1.7], runtime/input.scm[14.11]:
Fix stupid think-o from last change.

* edwin/bufinp.scm[1.3], edwin/make.scm[3.23]:
Change peek-char, read-char, and read-string operations to return EOF
objects when they reach the end of the input region. This is an
incompatible change required by runtime system version 14.101.

* runtime/input.scm[14.10], runtime/io.scm[14.11],
runtime/make.scm[14.24], runtime/parse.scm[14.13],
runtime/process.scm[1.4], runtime/runtime.pkg[14.83],
runtime/strnin.scm[14.3], runtime/unxprm.scm[1.9],
runtime/version.scm[14.101]:
Requires microcode 11.52 or later.

* Reimplement subprocess abstraction to match new microcode support.

* Implement socket abstraction.

* Create new "generic channel" input and output ports. These share
operations with file and console ports.

* Add `buffer-size' and `set-buffer-size' operations to file and
console input ports.

* Add `eof?' operation to file input port.

* Add `channel' operation to file input and output ports.

* Change input and output buffer abstractions to permit a buffer-size
of zero. Input buffer treats this the same as a buffer size of one,
since at least one character of buffering is needed to implement the
peek-char operation.

* Change the peek-char and read-char input port operations to return
an EOF object at end of file, or #F if no characters are available
and the input port is set to non-blocking mode. This is an
incompatible change.

* Change the read-string input port operation to return an EOF object
at end of file. This is an incompatible change.

* Change the read-string and discard-chars input-port operations to
for their input channels into blocking mode.

* Add new channel types: TCP-SERVER-SOCKET and DIRECTORY.

* Change the file-opening code to signal a range error if an attempt
is made to open a channel of type DIRECTORY or UNKNOWN.

* Remove error check from `open-pty-master'; the primitive now takes
care of this.

* Add new operations on PTY masters: pty-master-kill, pty-master-stop,
pty-master-continue, pty-master-interrupt, and pty-master-quit.

* Change the input-buffer abstraction to handle non-blocking channels
correctly.

* Use new microcode primitive `file-mod-time-indirect' to implement
`file-modification-time'.

1990-11-08 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/y300.lcl[1.13]:
Don't compile kitscheme -- it doesn't compile successfully so this is
a waste of time.

* microcode/version.h[11.52]:
Bug fixes and enhancement of socket and subprocess code.

* microcode/unxutl/Attic/ymkfile[1.31]:
Edit dependencies -- many missing dependencies in operating system
files.

* microcode/uxtop.c[1.6]:
(OS_initialize): Initialize processes after initializing signals,
otherwise assignment to `subprocess_death_hook' is lost.

* microcode/osterm.h[1.5], microcode/uxterm.c[1.7]:
* (OS_job_control_p): New procedure.

* (OS_open_pty_master): Signal error if none available.

* (OS_pty_master_send_signal): Conditionalize use of TIOCSIGSEND on
that symbol, not on _HPUX.

* (OS_pty_master_kill, OS_pty_master_stop, OS_pty_master_continue,
OS_pty_master_interrupt, OS_pty_master_quit): New procedures.

* microcode/uxsock.c[1.2], microcode/uxsock.h[1.2]:
* (OS_open_tcp_stream_socket): Change `host' argument to be `char *',
and don't assume that it is the same length as a `long'.

* (OS_get_host_by_name): Change interface to return `char **', and
eliminate `struct host_addresses'. Assume that all addresses are
`sizeof (struct in_addr)' in length.

* (OS_open_server_socket, OS_server_connection_accept): New procedures
support server sockets.

* microcode/uxproc.c[1.3]:
* (OS_make_subprocess): Permit 0 as environment pointer argument,
meaning use value of `environ'. Fix a couple of bugs in the child
process initialization sequence.

* (OS_process_stop, OS_process_continue): Don't check to see if job
control is available -- just do it.

* microcode/ux.h[1.13]:
Support for server sockets.

* microcode/uxio.c[1.6]:
* (UX_channel_close_all): Don't signal errors -- this is run when
there is no runtime system to field them, and in any case they can
be safely ignored here.

* (OS_channel_close_on_abort): New utility procedure.

* microcode/uxfile.c[1.2]:
* (fd_channel_type): Don't signal error if the system call fails, just
return unknown type. Add case for directory type.

* (OS_open_load_file, OS_open_dump_file): Permit only files and FIFOs.

* microcode/pruxsock.c[1.2]:
* (host-address-length): New primitive specifies the size of a host
name in characters.

* (get-host-by-name): Changes to match `OS_get_host_by_name'.

* (open-tcp-server-socket, tcp-server-connection-accept): New
primitives permit Scheme to act as a TCP server.

* microcode/pruxfs.c[9.43]:
(file-mod-time, file-mod-time-indirect): New primitives to obtain the
modification time of a file.

* microcode/prosterm.c[1.6]:
* (os-job-control?): New primitive tells the runtime system whether or
not the operating system supports job control. This is needed when
hacking subprocesses.

* (open-pty-master): Close the channel if allocation forces GC.

* (pty-master-kill, pty-master-stop, pty-master-continue,
pty-master-interrupt, pty-master-quit): New primitives to send
standard signals down a PTY master.

* microcode/prosproc.c[1.2]:
* (make-subprocess): Now accepts #F as third arg, meaning
give Scheme's process environment to the subprocess.

* (scheme-environment): New primitive returns Scheme's process
environment in a form suitable for passing to `make-subprocess'.

* (convert_string_vector): Fix fencepost error.

* microcode/osio.h[1.4]:
(enum channel_type): New types for server sockets and directories.

1990-11-05 Chris Hanson <[email protected]>

* microcode/uxctty.c[1.4]:
Fix typo from last change.

* microcode/osterm.h[1.4], microcode/ostty.h[1.2],
microcode/prosterm.c[1.5], microcode/prostty.c[1.2],
microcode/sysprim.c[9.35], microcode/uxctty.c[1.3],
microcode/uxterm.c[1.6], microcode/uxterm.h[1.2],
microcode/uxtop.c[1.5], microcode/uxtty.c[1.3],
microcode/version.h[11.51]:
* Eliminate obsolete TTY I/O primitives. These have not been used for
several months now.

* If stdin or stdout is a terminal, save its state when entering
Scheme, and restore it when leaving, as is done with the control
terminal. Ignore any attempts to change the state if Scheme is not
in the foreground. This code helps prevent buggy Scheme programs
from screwing up the user's terminal.

* On machines with TERMIOS and BSD_JOB_CONTROL, such as HP-UX, alter
VSUSPC and t_suspc together. Altering one and not the other can
cause the change to be lost.

1990-11-02 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.138], edwin/buffrm.scm[1.37],
edwin/bufwfs.scm[1.9], edwin/bufwin.scm[1.286],
edwin/bufwiu.scm[1.13], edwin/bufwmc.scm[1.8],
edwin/comman.scm[1.63], edwin/comwin.scm[1.139],
edwin/debuge.scm[1.40], edwin/decls.scm[1.15],
edwin/display.scm[1.3], edwin/ed-ffi.scm[1.5],
edwin/editor.scm[1.198], edwin/edtfrm.scm[1.83],
edwin/edtstr.scm[1.12], edwin/edwin.ldr[1.11], edwin/edwin.pkg[1.21],
edwin/edwin.sf[1.8], edwin/hlpcom.scm[1.93], edwin/image.scm[1.126],
edwin/make.scm[3.22], edwin/modlin.scm[1.5], edwin/modwin.scm[1.35],
edwin/rename.scm[1.4], edwin/screen.scm[1.85],
edwin/utlwin.scm[1.55], edwin/wincom.scm[1.99],
edwin/window.scm[1.152], edwin/winren.scm[1.3],
edwin/xterm.scm[1.13]:
Requires microcode 11.50 and runtime 14.100.

* Implementation of update optimizer, and direct use of termcap rather
than the buggy curses.

* Extensive rewrite of display update code. New display update
scrolls lines in some cases, and is tuned to offset the added cost
of running the update optimizer.

* New display update event-tracing facility for debugging.

* If the last line of the buffer is empty, and the previous line is
completely visible, the modeline says that the bottom of the buffer
is visible.

* Editor variables can have value validity tests, which are applied
whenever the variable's value is altered. If the test fails, an
error is signalled, so that user code can depend on the variable's
contents satisfying the validity test.

* `(buffer-point (current-buffer))' now equivalent to
`(current-point)'.

* `window-redraw!' no longer takes a second argument. It's new
meaning is to force the window to be redrawn from scratch, without
affecting the window starting point or cursor position.

* Removed procedures:
window-end-index
window-redraw-preserving-point!

* Changed `window-start-index' to `window-start-mark'.

* Change terminal state control to use new I/O port operations that
extract channels, and perform the terminal controls directly on
those channels.

* Internal flag `debug-internal-errors?' facilitates debugging Edwin
if set true. Normally this is false.

* When first starting the editor, the default behavior is to try to
use Scheme's controlling terminal, and if that isn't available, to
use X. If Scheme is started under Emacs, it has no controlling
terminal, and therefore it will use X.

* edwin/struct.scm[1.72]:
Tuning. Fix bug in mark comparison operations. Add operations to get
display text limits.

* edwin/motion.scm[1.82], edwin/search.scm[1.147]:
Tuning.

* edwin/kmacro.scm[1.32]:
Use the `recenter' command rather than the procedure `window-redraw!'.

* edwin/clscon.scm[1.4]:
Don't warn about redefining class if the new definition appears to be
the same as the original.

* runtime/dbgcmd.scm[14.10], runtime/input.scm[14.9],
runtime/io.scm[14.10], runtime/output.scm[14.8],
runtime/rep.scm[14.15], runtime/runtime.pkg[14.82],
runtime/version.scm[14.100]:
Requires microcode version 11.50 or later.

Many changes to provide for smooth control of terminal state:

* Procedures `make-cmdl' and `push-cmdl' each take additional argument
that specifies how to spawn a child CMDL object -- a good default
for this argument is `make-cmdl'. `make-cmdl' should not be used
except by this "spawning" operation -- always use `(cmdl/spawn-child
cmdl)' to do that. Command loops should be extended to have generic
operations for reading input, evaluating, writing results,
prompting, etc. This would simplify switching between the editor
and user code.

* Command loops now temporarily switch input and output modes of
terminals to appropriate values when doing input or output. Thus
REP loops and the debugger need not worry about what state the
terminal is in -- the user can change it arbitrarily.

* New procedures `input-port/channel' and `output-port/channel' return
a port's underlying channel if known, else #F. This is not yet
completely implemented, but since it is only used for terminals it
is OK for now.

* New procedures `terminal-get-state' and `terminal-set-state' can be
used to save and restore a terminal's state.

* Renamed procedures:
terminal-buffered? terminal-cooked-input?
terminal-buffered terminal-cooked-input
terminal-nonbuffered terminal-raw-input

* Eliminated procedure `make-repl'. Most instances of this should
have been `push-repl' instead.

* Eliminated procedures `input-port/immediate-mode' and
`input-port/normal-mode'. Eliminated output-port operations
`raw-mode' and `cooked-mode'. Eliminated port operation
`baud-rate'.

* Eliminated ill-advised `fresh-line' operation on output ports. This
should be supplied directly by each type of port.

1990-11-01 Chris Hanson <[email protected]>

* microcode/prosterm.c[1.4]:
Fix typo.

* microcode/osterm.h[1.3], microcode/prosterm.c[1.3],
microcode/term.c[1.3], microcode/ux.c[1.4], microcode/ux.h[1.12],
microcode/uxctty.c[1.2], microcode/uxterm.c[1.5],
microcode/version.h[11.50]:
* New primitives `terminal-get-state' and `terminal-set-state' allow
Scheme programs to get an object representing a terminal's state
structure, and to restore the terminal's state from such an object.

* When Scheme is terminated, restore the control terminal state.
Previously this was done only when suspending Scheme.

* On machines that have it, disable `t_dsuspc' (the delayed suspend
character). Save this and any other TIOCGLTC state in the terminal
state structure. Previously POSIX machines ignored this state even
if it was present.

1990-10-25 Chris Hanson <[email protected]>

* microcode/x11term.c[1.13]:
When scrolling part of an X terminal window, don't redraw the cursor
unless it is within the part of the window that is being overwritten.

1990-10-24 Chris Hanson <[email protected]>

* sf/usiexp.scm[4.8]:
Provide expanders for `values' and `with-values' that avoid expensive
rest arguments and calls to eval.

1990-10-19 Chris Hanson <[email protected]>

* sf/usiexp.scm[4.7], sf/usiexp.scm[4.6]:
* Expand CHAR=? to EQ?.

* Don't signal errors during expansion -- let them happen later.

1990-10-17 Gerald Jay Sussman <[email protected]>

* microcode/unxutl/Attic/y300.lcl[1.12]:
Update the 6003 and Toolkit microcodes.

Rename scmkit to kitscheme.

1990-10-17 Guillermo J. Rozas <[email protected]>

* runtime/load.scm[14.18]:
Provide load/loading? flag, true while loading, false otherwise, and
load/push-hook! to add a hook to execute after loading the current
file.

* runtime/runtime.pkg[14.81]:
Export load/loading? and load/push-hook! from (runtime load).

1990-10-16 Chris Hanson <[email protected]>

* sf/gconst.scm[4.9], sf/make.scm[4.15], sf/usiexp.scm[4.5]:
Provide expansions for fixnum comparison operators:

(FIX:= X Y) ---> (EQ? X Y)
(FIX:ZERO? X) ---> (EQ? X 0)
(FIX:<= X Y) ---> (NOT (FIX:> X Y))
(FIX:>= X Y) ---> (NOT (FIX:< X Y))

* runtime/io.scm[14.9], runtime/record.scm[1.7],
runtime/runtime.pkg[14.80], runtime/version.scm[14.99]:
This runtime requires microcode 11.49 or later.

* Take advantage of new primitives for terminals by adding operations
to console input and output that use them.

* Define new arithmetic operations:

FIX:<=
FIX:>=
INT:<=
INT:>=

* Change record package so that record types do not contain
procedures. This is needed to permit records and record types to be
fasdumped.

* microcode/osterm.h[1.2], microcode/prosterm.c[1.2],
microcode/s/Attic/bsd4-2.h[1.5], microcode/s/Attic/bsd4-3.h[1.2],
microcode/s/Attic/hpux.h[1.7], microcode/s/Attic/nextos.h[1.2],
microcode/s/Attic/sunos3.h[1.2], microcode/s/Attic/sunos4.h[1.2],
microcode/s/Attic/ultrix.h[1.11], microcode/s/Attic/umax.h[1.3],
microcode/unxutl/Attic/ymkfile[1.30], microcode/ux.c[1.3],
microcode/ux.h[1.11], microcode/uxterm.c[1.4],
microcode/version.h[11.49], microcode/x11term.c[1.12]:
* Flush curses support, add new primitives for termcap and terminfo.

* Add new primitives to control terminals:

TERMINAL-GET-ISPEED
TERMINAL-GET-OSPEED
BAUD-INDEX->RATE
BAUD-RATE->INDEX
TERMINAL-COOKED-OUTPUT?
TERMINAL-COOKED-OUTPUT
TERMINAL-RAW-OUTPUT

* Change X line scrolling so that it does not clear the region that
the lines are being scrolled out of. The update optimizer will take
care of this if it needs to.

1990-10-10 Chris Hanson <[email protected]>

* runtime/parse.scm[14.12], runtime/parse.scm[14.11]:
Fix parsing of octal escape sequences in strings.

* microcode/s/Attic/ultrix.h[1.10]:
Add "-YPOSIX" to compiler switches.

1990-10-10 Guillermo J. Rozas <[email protected]>

* compiler/etc/xcbfdir.scm[1.3]:
Add CPH's changes to check the date/time of the last compilation, and
avoid if unnecessary.

1990-10-09 Chris Hanson <[email protected]>

* edwin/bufwfs.scm[1.8], edwin/decls.scm[1.14], edwin/display.scm[1.2],
edwin/ed-ffi.scm[1.4], edwin/editor.scm[1.197],
edwin/edtstr.scm[1.11], edwin/edwin.ldr[1.10], edwin/edwin.pkg[1.20],
edwin/filcom.scm[1.142], edwin/modlin.scm[1.4],
edwin/screen.scm[1.84], edwin/wincom.scm[1.98],
edwin/xterm.scm[1.12]:
* The "-in-new-screen" commands have been replaced with
"-other-screen" commands. This is more analogous to the
"-other-window" commands.

* New editor variable `use-multiple-screens', if set true, causes
various window commands to use multiple screens instead of multiple
windows. Affected commands include C-x o, C-M-v, C-x 4, and
commands that pop-up buffers. This needs more work but is an
interesting first cut.

* With multiple X screens, the selected screen is distinguished by
having a cursor -- a screen's cursor is erased when it is
deselected. This is desirable because it is no longer the case that
the selected screen and the focus screen are always the same.

* Modeline formats have been extended to allow procedures as elements.
Such a procedure is called with the modeline's window as an
argument, and is expected to produce another modeline-format element
which is used in its place.

* Selecting a window in a screen other than the selected screen will
also select that screen.

* New procedure `other-screen' will choose a different screen if one
is available.

* New screen operations `screen-scroll-lines-down!' and
`screen-scroll-lines-up!' return a flag saying whether they
performed the scrolling. Redisplay code tries to use them when it
scrolls, and repaints if they don't work. Currently these
operations are implemented for X screens but not for curses.

* The `screen-write-substrings!' operation is now written in terms of
the `screen-write-substring!' operation, so that it need not be
implemented separately for each screen abstraction.

* The display-type abstraction has been redesigned so that it has no
internal state -- the current display type is now part of the editor
structure. Most of the operations have been renamed. The procedure
`editor-display-type' has been eliminated, the procedure
`editor-display-types' now returns display-type objects rather than
their names.

* Each display-type now indicates whether it supports multiple
screens. This information is returned by procedure
`multiple-screens?'.

* The buffer that appears in the typein window when no typein is
occurring is now different than the level-0 typein buffer. This
means that, under normal circumstances, only one typein window shows
the typein buffer when typein is occurring. The previous method of
obscuring the typein buffer with an override message on non-selected
screens is no longer used.

* The file "winmis" has been eliminated.

* The procedure `using-screen' has been eliminated.

* edwin/bufcom.scm[1.86], edwin/curren.scm[1.90]:
* The "-in-new-screen" commands have been replaced with
"-other-screen" commands. This is more analogous to the
"-other-window" commands.

* New editor variable `use-multiple-screens', if set true, causes
various window commands to use multiple screens instead of multiple
windows. Affected commands include C-x o, C-M-v, C-x 4, and
commands that pop-up buffers. This needs more work but is an
interesting first cut.

* With multiple X screens, the selected screen is distinguished by
having a cursor -- a screen's cursor is erased when it is
deselected. This is desirable because it is no longer the case that
the selected screen and the focus screen are always the same.

* Modeline formats have been extended to allow procedures as elements.
Such a procedure is called with the modeline's window as an
argument, and is expected to produce another modeline-format element
which is used in its place.

* Selecting a window in a screen other than the selected screen will
also select that screen.

* New procedure `other-screen' will choose a different screen if one
is available.

* New screen operations `screen-scroll-lines-down!' and
`screen-scroll-lines-up!' return a flag saying whether they
performed the scrolling. Redisplay code tries to use them when it
scrolls, and repaints if they don't work. Currently these
operations are implemented for X screens but not for curses.

* The `screen-write-substrings!' operation is now written in terms of
the `screen-write-substring!' operation, so that it need not be
implemented separately for each screen abstraction.

* The display-type abstraction has been redesigned so that it has no
internal state -- the current display type is now part of the editor
structure. Most of the operations have been renamed. The procedure
`editor-display-type' has been eliminated, the procedure
`editor-display-types' now returns display-type objects rather than
their names.

* Each display-type now indicates whether it supports multiple
screens. This information is returned by procedure
`multiple-screens?'.

* The buffer that appears in the typein window when no typein is
occurring is now different than the level-0 typein buffer. This
means that, under normal circumstances, only one typein window shows
the typein buffer when typein is occurring. The previous method of
obscuring the typein buffer with an override message on non-selected
screens is no longer used.

* The file "winmis" has been eliminated.

* The procedure `using-screen' has been eliminated.

1990-10-07 Chris Hanson <[email protected]>

* microcode/version.h[11.48], microcode/x11term.c[1.11]:
Change `xterm-erase-cursor' and `xterm-draw-cursor' primitives to be
direct calls to do exactly that. Add new primitive
`xterm-enable-cursor' which enables or disables the drawing of the
cursor.

1990-10-06 Chris Hanson <[email protected]>

* edwin/window.scm[1.151]:
Implement `%set-inferior-start!' that does not force redisplay.

* edwin/buffrm.scm[1.36], edwin/curren.scm[1.89],
edwin/editor.scm[1.196], edwin/edtfrm.scm[1.82],
edwin/edtstr.scm[1.10], edwin/edwin.pkg[1.19], edwin/input.scm[1.85],
edwin/prompt.scm[1.139], edwin/screen.scm[1.83], edwin/xcom.scm[1.6],
edwin/xterm.scm[1.11]:
* Add new procedure `window-override-message' that returns the
override message, or #F if none. This is used to implement
`current-message', which operates on the current typein window.
`clear-message!' renamed to `clear-current-message!'.
`set-message!', renamed to `set-current-message!', now accepts #F as
an argument, in which case it acts like `clear-current-message!'.

* Split `select-buffer-in-new-screen' into two parts: a procedure
`make-screen' that generates a new screen, and a call to
`select-screen'. The new procedure `make-screen' replaces the
procedure of the same name which is now considered internal to the
screen abstraction.

* Change `select-screen' not to abort to top level, to run the
`select-buffer-hook', and to transfer the typein override message
from the previously-selected screen to the newly-selected one. The
X screen event handler now does the abort to top level, since it is
still needed in that case.

* Eliminate the typein bufferset -- typein buffers are shared by all
screens. Display of the typein buffers is suppressed in
non-selected screens by a blank override message. This has the
drawback that direct update of the typein window does not work if
there are multiple screens, which makes typein feel sluggish.

* Implement procedures `screen0', `screen1+', `screen-1+', and
`screen+' for moving around the screen list.

* `buffer-list' no longer copies its result -- don't clobber it!

* New procedure `change-selected-buffer' makes the handling of buffer
selection more uniform.

* Eliminate cacheing of `editor-input-port' from "input.scm". Just
extract the input port from `current-editor' every time. Change the
keyboard reader to use `input-port/read-char' instead of
`read-char', since the former is faster.

* Redesign the `button' abstraction to make it cleaner and more
general. Rename the `buttonN-down' and `buttonN-up' variables to
`x-buttonN-down' and `x-buttonN-up'. Change button-handling code so
that up buttons don't beep if they aren't bound to commands.

* Updating of an X screen is now terminated if a non-keypress event
arrives while checking for update preemption. This is done by
throwing out of the update. I believe this test only happens in
places where it is safe to do this.

* Make screen highlight control independent of the screen type.
Change screen abstractions so that screens support two operations,
one to turn on highlighting, and the other to turn it off.

* edwin/tagutl.scm[1.35]:
Fix bug in `find-tag-default': don't use `re-search-forward' to find
the end of the current symbol, use `re-match-forward' instead.

1990-10-05 Chris Hanson <[email protected]>

* runtime/rgxcmp.scm[1.103]:
* `hack-fastmap' needed to call `syntax-table/entries' because
the syntax-table abstraction has changed since it was written.

* Fixed bug in `re-disassemble-pattern' that showed the wrong syntax
class for syntax operators.

* edwin/bufwin.scm[1.285]:
Fix bug: `line-inferiors-changed!' must update the `inferiors'
instance variable even if `override-message' is set.

* edwin/modwin.scm[1.34]:
Eliminate compiler warning.

* cref/Attic/triv.con[1.2], cref/anfile.scm[1.4], cref/cref.pkg[1.3],
cref/make.scm[1.6], cref/redpkg.scm[1.3]:
Use one ".free" file to cache data for entire package model. Compress
the data stored in this file by eliminating duplicates and using
vectors instead of lists.

1990-10-05 Guillermo J. Rozas <[email protected]>

* microcode/version.h[11.47]:
Add checksumming code. Binary files dumped by Psbtobin or fasdump
have checksums in the header. If the checksum field is SHARP_F, the
checksum is ignored on the way in.

Currently bchscheme's fasdump does not dump files with checksums.
This should be fixed.

* microcode/fasl.h[9.32]:
Add checksum field in header.

* microcode/dump.c[9.31], microcode/fasload.c[9.57],
microcode/load.c[9.29]:
Add checksumming code.

* microcode/bintopsb.c[9.46]:
Inhibit checksum check within Bintopsb.

1990-10-04 Chris Hanson <[email protected]>

* cref/object.scm[1.3]:
Use one ".free" file to cache data for entire package model. Compress
the data stored in this file by eliminating duplicates and using
vectors instead of lists.

* runtime/global.scm[14.19], runtime/record.scm[1.6],
runtime/record.scm[1.5], runtime/runtime.pkg[14.79]:
Change to use `error:illegal-datum' and `error:datum-out-of-range'.

1990-10-03 Chris Hanson <[email protected]>

* edwin/basic.scm[1.105], edwin/bufcom.scm[1.85],
edwin/buffer.scm[1.137], edwin/buffrm.scm[1.35],
edwin/bufwin.scm[1.284], edwin/c-mode.scm[1.44],
edwin/comred.scm[1.83], edwin/curren.scm[1.88],
edwin/decls.scm[1.13], edwin/ed-ffi.scm[1.3],
edwin/editor.scm[1.195], edwin/edtfrm.scm[1.81],
edwin/edtstr.scm[1.9], edwin/edwin.pkg[1.18],
edwin/filcom.scm[1.141], edwin/info.scm[1.95], edwin/input.scm[1.84],
edwin/iserch.scm[1.8], edwin/loadef.scm[1.7], edwin/make.scm[3.21],
edwin/midas.scm[1.15], edwin/modefs.scm[1.123],
edwin/modlin.scm[1.3], edwin/modwin.scm[1.33],
edwin/pasmod.scm[1.43], edwin/prompt.scm[1.138],
edwin/schmod.scm[1.14], edwin/scrcom.scm[1.3],
edwin/screen.scm[1.82], edwin/texcom.scm[1.33],
edwin/tximod.scm[1.13], edwin/wincom.scm[1.97], edwin/xcom.scm[1.5],
edwin/xterm.scm[1.10]:
* X terminal interface extensively changed to use new event-handling
model -- this requires microcode 11.45 or later.

* `delete-screen' command now works. `create-new-screen' command
removed.

* `save-buffers-kill-scheme' command now prompts for confirmation.

* Changed all "event" hook variables to have event distributors as
their values. Users get access to an event by adding themselves to
the event distributor.

* X screens now update their window and icon names under the control
of the new variables `x-screen-name-format' and
`x-screen-icon-name-format'.

Changes to programming interface:

* Changed names:

current-screen selected-screen
all-windows window-list (replacing old definition)
all-screens screen-list
create-new-frame select-buffer-in-new-screen
screen-window screen-root-window
change-screen select-screen

* `typein-window?' is now true if the window is a typein window of any
screen. Previously it was only true of the typein window of the
selected screen.

* `select-window' and `select-cursor' now work for windows in any
screen, rather than just for the selected screen.

* Changed `make-buffer' to use `editor-default-mode' for new buffers,
rather than `fundamental-mode'.

* New procedure `typein-edit-other-window' returns the non-typein
window that was active immediately before the current typein edit
began.

* New procedure `format-modeline-string' permits more general use of
the formatting language used for `mode-line-format'.

* Implemented `command-reader/reset-and-execute', which aborts to the
top-level command reader and executes a thunk there before reading
the next command. This mechanism replaces the
`set-reader-do-before-next-read!' procedure.

Internal changes:

* Modeline events for each window are now passed to the window's
screen, in case the screen needs them.

* Guaranteed that `buffer-modified' modeline event is only signalled
when the "modified" bit of the buffer changes.

* Eliminated `cursor-moved' modeline event.

* Screens now cache their dimensions. X screens use this cached
information to determine when a screen's size has changed.

* Removed `reader-continuation' stuff, which was commented out anyway.
Current assumption is that, no matter how many screens there are,
there is only one input port. For X, this means that all screens
are on the same display.

* Editor-frame operations are now subsumed by screen operations.
There are no editor-frame operations in the (edwin) package.

* Many references to `update-screens!' changed to be calls to
`update-selected-screen!'.

* Incremental search bullet-proofed to remove its message when it is
aborted by any means.

* `standard-editor-initialization' bullet-proofed against aborts.

* Typein edits must consistenly use `current-typein-bufferset' for
typein buffers.

* Eliminated "rescrn" by moving `toggle-screen-width' into "wincom".

* runtime/input.scm[14.8]:
Remove most of the calls to `guarantee-input-port'. This is overkill,
and the performance penalty is undesirable.

* microcode/sgraph_a.c[1.13]:
Update to match new X interface. Also reformat to fit on 80x80 pages.

1990-10-03 Guillermo J. Rozas <[email protected]>

* runtime/version.scm[14.98]:
Update handler for error COMPILED-CODE-ERROR, and add handler for
return code COMPILER-ERROR-RESTART.

* runtime/uerror.scm[14.16]:
Update handler for COMPILED-CODE-ERROR.

* runtime/conpar.scm[14.20], runtime/framex.scm[14.14]:
Add handler for COMPILER-ERROR-RESTART.

* microcode/interp.c[9.58]:
Add handler for RC_COMP_ERROR_RESTART.

* microcode/version.h[11.46]:
Add comutil_primitive_error and associated changes (new return code,
and re-use ERR_COMPILED_CODE_ERROR).

* microcode/cmpint.c[1.31]:
Change ERR_BAD_COMBINATION to ERR_COMPILED_CODE_ERROR.
Change how comutil_primitive_error works, and add comp_error_restart.

* microcode/returns.h[9.38]:
Add RC_COMP_ERROR_RESTART.

* microcode/utabmd.scm[9.52]:
Add COMPILER-ERROR-RESTART.

* microcode/extern.h[9.38], microcode/interp.c[9.57],
microcode/storage.c[9.47]:
Remove compiled_code_error_code, no longer used.

* microcode/errors.h[9.34]:
Disable ERR_BAD_COMBINATION.

1990-10-02 Chris Hanson <[email protected]>

* microcode/starbasx.c[1.4], microcode/unxutl/Attic/ymkfile[1.29],
microcode/version.h[11.45], microcode/x11.h[1.8],
microcode/x11base.c[1.15], microcode/x11graph.c[1.7],
microcode/x11term.c[1.10]:
Extensive rewrite of X11 interface. New event-handling model, cleanup
of several bugs, general reformatting of code.

Requires runtime version 14.97 or later, and edwin 3.21 or later.

* runtime/version.scm[14.97], runtime/x11graph.scm[1.6]:
Change X graphics to match new event-handling in microcode.

* runtime/intrpt.scm[14.5]:
Don't use obsolete primitive `setup-timer-interrupt'.

1990-10-02 Guillermo J. Rozas <[email protected]>

* microcode/gpio.c[1.7]:
Make gpio primitives interruptible.

* microcode/cmpauxmd/mc68k.m4[1.14], microcode/cmpintmd/mc68k.h[1.17]:
Add asm_primitive_error.

* microcode/cmpint.c[1.30]:
Add comutil_primitive_error.

1990-10-01 Chris Hanson <[email protected]>

* microcode/uxenv.c[1.2]:
`OS_process_timer_clear' must not signal errors, even if
`OS_process_timer_set' isn't defined.

1990-10-01 Guillermo J. Rozas <[email protected]>

* compiler/documentation/safety.txt[1.3]:
Arthur's fixes to some text.

* compiler/documentation/safety.txt[1.2]:
Add a note about integrations.

1990-09-28 Arthur Gleckler <[email protected]>

* runtime/input.scm[14.7]:
Added (guarantee-input-port port) where necessary to improve type
safety.

1990-09-27 Chris Hanson <[email protected]>

* runtime/pp.scm[14.13]:
Pretty printer didn't handle #() correctly.

1990-09-20 Guillermo J. Rozas <[email protected]>

* microcode/bitstr.c[9.46]:
Add nbits = 0 case to copy_bits to compensate for division bug in gcc.
The bug arises when dividing by OBJECT_LENGTH inside
BIT_STRING_INDEX_TO_WORD. The division is optimized into an unsigned
left shift that works for non-negative values, but not for -1, used
when the number of bits is 0!

1990-09-19 Chris Hanson <[email protected]>

* runtime/pp.scm[14.12], runtime/unpars.scm[14.18],
runtime/version.scm[14.96]:
Fix pretty printer's handling of custom pair and vector unparsers.

* runtime/boot.scm[14.4], runtime/gdatab.scm[14.5],
runtime/global.scm[14.18]:
Alter `unparser/tagged-pair-method' and
`unparser/tagged-vector-method' to disallow futures as tags.

1990-09-17 Guillermo J. Rozas <[email protected]>

* microcode/lookup.c[9.44]:
Fix recaching bug in extend_frame when the root of the chain is not
the global environment and there is no cell being shadowed.
Compiler_uncache was not called so shadowing_recache called from
higher levels was called on the wrong shadowed cell. There is no
shadowed cell in this case so we use the cell containing the
unbound_trap_object. This makes compiler_uncache and compiler_recache
punt the caching operation.

1990-09-14 Chris Hanson <[email protected]>

* runtime/version.scm[14.95]:
*** empty log message ***

1990-09-13 Chris Hanson <[email protected]>

* runtime/pp.scm[14.11]:
Teach pretty-printer to respect the list depth and breadth limits.

* runtime/debug.scm[14.23], runtime/debug.scm[14.22]:
Change subproblem marker to "###".

* runtime/debug.scm[14.21], runtime/runtime.pkg[14.78]:
Add list depth and breadth limiting to the debugger. Export the
debugger's control variables to the global environment.

* runtime/output.scm[14.7], runtime/runtime.pkg[14.77],
runtime/unpars.scm[14.17]:
Implement new `fresh-line' operation.

* runtime/runtime.pkg[14.76], runtime/strout.scm[14.4]:
Add new procedure `with-output-string-port'.

* runtime/dragon4.scm[1.5]:
Recognize infinities and NaNs, and print them out specially.

1990-09-12 Chris Hanson <[email protected]>

* edwin/artdebug.scm[1.3], edwin/edwin.pkg[1.17],
edwin/edwin.pkg[1.14.1.2]:
Update continuation browser to match changes in the debugger.

* runtime/dbgcmd.scm[14.9], runtime/debug.scm[14.20]:
Fix typo in `debug'. Change `command/return' so that the $ option
doesn't unsyntax and then resyntax the expression.

* runtime/framex.scm[14.13]:
For the compiler's `COMBINATION-OPERAND' return type, index zero means
the operator.

* compiler/back/asmmac.scm[1.7], compiler/base/toplev.scm[4.30],
edwin/input.scm[1.83], edwin/kmacro.scm[1.31], edwin/xform.scm[1.8],
edwin/xform.scm[1.7], edwin/xform.scm[1.6]:
Fix a number of instances of syntactic keywords being used as
variables.

1990-09-12 Guillermo J. Rozas <[email protected]>

* compiler/documentation/cmpint.txt[1.5]:
Some minor rewordings.

1990-09-12 Mark Friedman <[email protected]>

* edwin/make.scm[3.20]:
Support for multiple screens.
Support for new runtime debugger stuff.
Uses apply-hooks instead of entities.

* edwin/scrcom.scm[1.2]:
delete-screen doesn't yet work.

* edwin/edwin.ldr[1.9]:
entity.scm is now obsolete. Apply hooks are used instead.

1990-09-11 Chris Hanson <[email protected]>

* runtime/lambda.scm[14.7], runtime/lambdx.scm[14.3],
runtime/scan.scm[14.4], runtime/scode.scm[14.10],
runtime/scomb.scm[14.9], runtime/unsyn.scm[14.10]:
Fix a number of instances of syntactic keywords being used as
variables.

* runtime/arith.scm[1.16], runtime/dragon4.scm[1.4],
runtime/global.scm[14.17], runtime/numpar.scm[14.6],
runtime/runtime.pkg[14.75]:
Add new procedures to signal wrong type and bad range errors.

* runtime/dbgutl.scm[14.11]:
Tweak presentation.

* runtime/version.scm[14.94]:
*** empty log message ***

* runtime/Attic/syntax.scm[14.13], runtime/advice.scm[14.7],
runtime/conpar.scm[14.19], runtime/dbgcmd.scm[14.8],
runtime/dbgutl.scm[14.10], runtime/debug.scm[14.19],
runtime/emacs.scm[14.6], runtime/framex.scm[14.12],
runtime/lambda.scm[14.6], runtime/pp.scm[14.10],
runtime/runtime.pkg[14.74], runtime/udata.scm[14.15],
runtime/uenvir.scm[14.20], runtime/unpars.scm[14.16],
runtime/unsyn.scm[14.9], runtime/where.scm[14.8]:
* Advice package now signals error if the user attempts to advise
anything but an compound procedure.

* Continuation parser keeps track of the type of the previous stack
frame. This information is used as context in some situations.
This mechanism replaces special-purpose flag `allow-next-extended?'.

* Continuation parser slightly reorganized and commented to make it
easier to understand.

* Debugger modified to provide more flexible control over use of
history information, to provide more detailed information about
stack frames, and to make it more self-explanatory. Also knows
about "simulated" compiled-code environment frames, and ignores
them.

* The environment inspector has been modified to make it more
self-explanatory. The N command has been replaced by an O command
like that of the debugger.

* `pretty-print' now has additional optional argument that specifies
an indentation for the printed expression. If given, the output is
indented by that many columns.

* The emacs interface now has a hook for evaluating arbitrary
emacs-lisp expressions. This is used to provide a better debugger
interface.

**** This requires "xscheme.el" version 1.26 or later. ****

* `stack-frame/debugging-info' now returns a third value,
"subexpression", which indicates the subexpression of the expression
that the next later subproblem is evaluating.

* The lambda abstraction now forces the use of internal lambda
expressions for auxiliary variables. This is required for correct
semantics of `letrec'.

* `make-lambda' now does error-checking on its parameter-list
arguments, which disallows duplicates in the parameter lists.

* The `procedure' abstraction has been split off into a separate file.
`procedure-arity' has been modified to handle entities correctly.
A new datatype, `apply-hook', is like entities except that it
doesn't pass itself to the handler. `compound-procedure' operations
have been removed from the global environment; use generic
operations instead.

* The unsyntaxer has a new entry point, `unsyntax-with-substitutions',
which allows subexpressions of an expression to be replaced in the
output with arbitrary objects.

* Removed `dynamic-state-let' from `system-global-syntax-table'.

* The syntaxer now disallows the use of syntactic keywords as
variables. This applies to references, bindings, and definitions.

* The syntaxer signals an error if the name of a named `let' is also
one of its bound variables.

* The syntaxer signals an error if there are duplicates in the
parameters of a lambda expression.

* Compiled-code environments that do not have interpreter-compatible
ancestors now simulate such ancestors for debugging convenience.
The simulated ancestor is the closing environment of the compiled
code, if known, otherwise it is the system global environment.

* microcode/version.h[11.44], microcode/x11base.c[1.14]:
Change `x-window-read-event-flags!' to mask its result so that only
the least significant 3 bits are returned.

* edwin/decls.scm[1.10.1.1], edwin/edwin.ldr[1.7.1.1],
edwin/edwin.pkg[1.14.1.1], edwin/make.scm[3.19.1.2],
edwin/make.scm[3.19.1.1]:
Eliminate uses of `entity' datatype. Use new `apply-hook' datatype
instead.

* microcode/x11base.c[1.13]:
Change some EMPTY_LIST references to SHARP_F.

1990-09-09 Chris Hanson <[email protected]>

* runtime/prgcop.scm[1.2]:
Fix typo.

* runtime/arith.scm[1.15]:
Fix typo and rename lambda parameter.

1990-09-08 Chris Hanson <[email protected]>

* microcode/artutl.c[1.5]:
Use `FIXNUM_TO_LONG' in definition of `fixnum_to_long'.

* microcode/Attic/config.h[9.56], microcode/bitstr.c[9.45],
microcode/boot.c[9.63], microcode/cmpintmd/hppa.h[1.17],
microcode/cmpintmd/mc68k.h[1.16], microcode/cmpintmd/mips.h[1.7],
microcode/default.h[9.34], microcode/object.h[9.35],
microcode/scheme.h[9.33], microcode/term.c[1.2],
microcode/version.h[11.43], microcode/wsize.c[9.30]:
* Eliminate BELL, USHORT_SIZE, ULONG_SIZE, DBFLT_SIZE, UNSIGNED_SHIFT,
FLONUM_EXPT_SIZE, FLONUM_MANTISSA_BITS, MAX_FLONUM_EXPONENT, quick.

* Rename `Exit_Scheme' macros to upper case.

* New macro UNSIGNED_SHIFT_BUG has opposite meaning of old
UNSIGNED_SHIFT -- it says that the compiler uses arithmetic right
shift on the `unsigned long' type.

* Redo MIPS configuration to handle non-DEC machines.

* Add configurations for i386 and NeXT.

* Eliminate `term_type' definition -- HP's compiler no longer has this
problem.

* Change `FIXNUM_TO_LONG' to use more efficient conversion suggested
by Aubrey Jaffer.

1990-09-07 Chris Hanson <[email protected]>

* compiler/machines/bobcat/lapgen.scm[4.37],
compiler/machines/bobcat/lapgen.scm[4.36]:
Fix typos in methods for `fixnum-quotient' and `fixnum-remainder'.

* edwin/autold.scm[1.48], edwin/decls.scm[1.12], edwin/ed-ffi.scm[1.2],
edwin/edwin.pkg[1.16]:
Eliminate uses of `entity' datatype. Use new `apply-hook' datatype
instead.

* runtime/advice.scm[14.6]:
Eliminate variables named `lambda'. Pull all empty variable
definitions to the beginning of the file.

* runtime/parse.scm[14.10]:
Make reader accept "#*" as a valid, zero-length bit string.

1990-09-06 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/config[1.7]:
Add configuration information for NeXT.

1990-08-31 Mark Friedman <[email protected]>

* edwin/bufcom.scm[1.84], edwin/curren.scm[1.87],
edwin/decls.scm[1.11], edwin/editor.scm[1.194],
edwin/edtfrm.scm[1.80], edwin/edtstr.scm[1.8], edwin/edwin.ldr[1.8],
edwin/edwin.pkg[1.15], edwin/filcom.scm[1.140],
edwin/input.scm[1.82], edwin/prompt.scm[1.137],
edwin/scrcom.scm[1.1], edwin/xcom.scm[1.4], edwin/xterm.scm[1.9]:
Support for multiple screens.

1990-08-27 Chris Hanson <[email protected]>

* microcode/uxsig.c[1.3]:
When stopping Scheme, use signal that was used to tell us we needed to
stop. Previously, we always used SIGTSTP.

1990-08-27 Guillermo J. Rozas <[email protected]>

* compiler/fgopt/reuse.scm[1.6]:
Fix a bug in the interaction between multi-closures and frame reusing.
The shared closure block was not considered when determining whether a
slot could be rewritten or not.

1990-08-25 Guillermo J. Rozas <[email protected]>

* runtime/conpar.scm[14.18]:
Fix edti bug from last set of changes.

1990-08-24 Guillermo J. Rozas <[email protected]>

* compiler/fgopt/offset.scm[4.8],
compiler/machines/bobcat/make.scm-68040[4.76],
compiler/rtlgen/rgrval.scm[4.17]:
Fix two bugs in multiclosure code:

- non-canonical multi-closure entries appearing in letrecs were
computed incorrectly. The context offset is not the context after
binding since the code has not finished pushing.

- referencing a closure from within itself cannot bypass the variable
lookup code if the closure for environment is not the closure for
value. This only affects machines where closures are canonicalized
for environment.

1990-08-23 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/make.scm[4.75]:
Change internal procedure format words to look like return addresses
so that the debugger can parse the stack.

1990-08-22 Guillermo J. Rozas <[email protected]>

* compiler/machines/mips/rules3.scm[1.3],
compiler/machines/spectrum/rules3.scm[4.28]:
Make open procedures look like return addresses to the debugger.

1990-08-21 Guillermo J. Rozas <[email protected]>

* runtime/conpar.scm[14.17], runtime/debug.scm[14.18],
runtime/framex.scm[14.11], runtime/infutl.scm[1.18],
runtime/runtime.pkg[14.73], runtime/udata.scm[14.14],
runtime/uenvir.scm[14.19], runtime/version.scm[14.93]:
Modify the stack parser and environment utilities to handle interrupt
frames from compiled code in which the return address is a procedure.

* compiler/rtlbase/rtlobj.scm[4.9], compiler/rtlgen/rtlgen.scm[4.23]:
Add next-continuation-offset field to rtl-procedures so that internal
procedures can be represented as return addresses for the debugger.

* compiler/machines/bobcat/rules3.scm[4.26]:
Fix broken comment.

* compiler/machines/bobcat/make.scm-68040[4.75],
compiler/machines/bobcat/rules3.scm[4.25]:
Replace internal code words with return address code words so the
debugger will not get confused about internal procedures and interrupt
frames in compiled code.

1990-08-17 Guillermo J. Rozas <[email protected]>

* compiler/documentation/cmpint.txt[1.4]:
Update the list of missing macros to document.

* microcode/cmpint.c[1.29]:
Split cache flusing code from STORE_EXECUTE_CACHE_ADDRESS, since it is
not needed at GC time because the whole cache is flushed immediately
afterwards.

The flushing code is now in FLUSH_I_CACHE_REGION, used explicitly by
store_uuo_link in cmpint.c

* microcode/cmpintmd/hppa.h[1.16], microcode/cmpintmd/mips.h[1.6]:
Split cache flusing code from STORE_EXECUTE_CACHE_ADDRESS, since it is
not needed at GC time.

The flushing code is now in FLUSH_I_CACHE_REGION, used explicitly by
store_uuo_link in cmpint.c

1990-08-17 Mark Friedman <[email protected]>

* microcode/unxutl/Attic/ymkfile[1.28]:
Added dependency of x11base.o on ux.h to match the includes in x11base.c

* microcode/ux.h[1.10]:
Made definition of HAVE_SELECT be posix independent.

1990-08-16 Chris Hanson <[email protected]>

* microcode/fasload.c[9.56], microcode/uxtop.c[1.4]:
Export `execute_reload_cleanups' and call it when resuming after a
`dump-world'.

* microcode/ux.c[1.2], microcode/ux.h[1.9]:
Add memoization to `UX_SC_CLK_TCK'.

* runtime/version.scm[14.92]:
Don't use `event:before-exit' to tell the microcode to clean itself
up. There is now a new hook at the microcode level that delays this
cleanup until the `disk-restore' is committed.

* runtime/x11graph.scm[1.5]:
Don't call `x-close-all-displays' before disk-restoring.

* runtime/io.scm[14.8]:
Don't call `close-all-open-files' before disk-restoring.

* microcode/fasload.c[9.55], microcode/version.h[11.42]:
Implement new `reload_cleanup' facility to provide a hook for cleaning
up various things before a disk-restore.

* microcode/x11base.c[1.12]:
Use new `add_reload_cleanup' facility to close all the display
connections.

* microcode/x11.h[1.7]:
Change declarations of `x_malloc' and `x_realloc' to use `PTR' instead
of `char *'.

* microcode/uxio.c[1.5]:
Change `OS_channel_close_all' to internal definition and use new
`add_reload_cleanup' facility to install it.

* microcode/osio.h[1.3]:
Delete `OS_channel_close_all'.

* microcode/extern.h[9.37]:
Export `add_reload_cleanup'.

1990-08-16 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/hppa.h[1.15]:
Add cache-flushing call to STORE_TRAMPOLINE_ENTRY .

* microcode/fasload.c[9.54]:
Wrap call to read_file_start inside of LOAD-BAND in a transaction to
undo initial read.

* microcode/utils.c[9.47]:
Change some error death messages.

* microcode/debug.c[9.37]:
Add paranoia check for inconsistent stack.

* runtime/savres.scm[14.14]:
Make disk-restore invoke canonicalize-input-filename before invoking
event:before-exit.

* microcode/uxtrap.h[1.6]:
Add missing C-macro continuation lines from mips version of
DECLARE_UX_SIGNAL_CODES.

1990-08-14 Chris Hanson <[email protected]>

* microcode/cmpauxmd/mips.m4[1.3], microcode/s/Attic/ultrix.m4[1.3],
microcode/uxtrap.h[1.5]:
Update from jmiller.

1990-08-10 Chris Hanson <[email protected]>

* microcode/ux.h[1.8], microcode/uxio.c[1.4]:
Move non-blocking I/O definitions to "ux.h".

* microcode/Attic/oscond.h[1.3]:
Recent versions of ultrix are mostly POSIX-compliant.

* microcode/uxtop.c[1.3]:
Forgot some arguments to fprintf.

1990-08-09 Guillermo J. Rozas <[email protected]>

* microcode/uxtrap.c[1.4]:
Fix casting bug.

* microcode/uxtrap.c[1.3]:
Change the code to accomodate:

- Machines where the Scheme stack pointer and the C stack pointer do
not live in the same register.

- The "new" compiled code interface, where C code (including
primitives) always executes on the C stack, except for the couple of
instructions each way.

* microcode/uxtrap.h[1.4]:
Add definition of FULL_SIGCONTEXT_SCHSP for machines where the Scheme
stack pointer and the C stack pointer are separate registers.

* runtime/site.scm.unix[1.4]:
Add /scheme/850 directories to rewrite rules.

* microcode/cmpintmd/mips.h[1.5]:
Fix bug in STORE_ABSOLUTE_ADDRESS by which large addresses in the
26-bit range where being relocated incorrectly on band-load.

1990-08-08 Chris Hanson <[email protected]>

* runtime/conpar.scm[14.16], runtime/histry.scm[14.3],
runtime/version.scm[14.91]:
When the continuation parser makes a transition from interpreted to
compiled frames or vice-versa, the history subproblem must be stepped.
The reasons for this are that:

1. When interpreted code is called from compiled code, a new history
subproblem is pushed. This subproblem must be discarded when making
the transition back to the compiled code stack frame.

2. When compiled code is called from interpreted code, the existing
history subproblem is preserved for use if the compiled code
tail-recurses back into interpreted code. This subproblem must be
discarded when making the transition back to the interpreted code
stack frame.

1990-08-08 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/hppa.h[1.14]:
Fix error message when the cache information file is not found.

* microcode/unxutl/Attic/ymkfile[1.27]:
Add hppacache.h to Spectrum GC_HEAD_FILES.
Add XTRA_TARGETS for architecture-dependent files, and make
Spectrum XTRA_TARGETS be hppacache.

* microcode/cmpintmd/hppa.h[1.13]:
Add definition of ENTRY_PREFIX_LENGTH .
Add cache-flushing code to guarantee consistency between the D-cache
and the I-cache after instructions are copied, moved, or created in
Scheme data space.

* microcode/cmpauxmd/hppa.m4[1.10]:
Fix type declaration for cache_flush_all.
Make cache_flush_region round up rather than truncate when determining
how many blocks to flush.

1990-08-07 Chris Hanson <[email protected]>

* runtime/uenvir.scm[14.18]:
Temporarily disable consistency check in `stack-ccenv/normal-closure',
because it fails for certain cases of multi-closures.

1990-08-07 Guillermo J. Rozas <[email protected]>

* microcode/debug.c[9.36]:
Fix occurrences of old names of renamed variables.

* microcode/bkpt.c[9.24]:
Add definition of sp_nil .

* microcode/cmpauxmd/hppa.m4[1.9]:
- Add new hooks for compiled code:
store_closure_entry
multiply_fixnum
fixnum_quotient
fixnum_remainder
fixnum_lsh

- Add debugging code (under control of an M4 definition).

- Add cache flushing instructions to store_closure_code (shared by
store_closure_entry).

- Add cache flushing subroutines:
cache_flush_region (address, count_in_lwords)
cache_flush_all (cache_set, cache_info)

1990-08-05 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/rules3.scm[4.27]:
Fix bug in cons-closure-entry by which branch-expanded LDOs were
causing problems: the ADDIL was being executed immediately after the
BLE, the LDO on return, and thus the address stored in the closure was
bogus.

* compiler/machines/spectrum/instr2.scm[1.3]:
Add PCR-HOOK pseudo-op for the closure creation code.

1990-07-30 Guillermo J. Rozas <[email protected]>

* microcode/ux.h[1.7]:
Make Ultrix and SunOS describe themeselves as such.

* microcode/Attic/oscond.h[1.2], microcode/s/Attic/ultrix.h[1.9]:
Include ultrix conditionalization in oscond.h rather than s/ultrix.h .

* microcode/ux.h[1.6]:
Fix ifdefs for HPUX after ULTRIX changes.

* microcode/version.h[11.41]:
Merge in Jmiller's changes for the MIPS.

* microcode/ux.h[1.5]:
Remove dangling #endif left over from previous edit.

* microcode/Attic/posixtyp.h[1.2], microcode/cmpauxmd/mips.m4[1.2],
microcode/cmpintmd/mips.h[1.4], microcode/s/Attic/ultrix.h[1.8],
microcode/ux.h[1.4], microcode/uxsig.c[1.2], microcode/uxtrap.h[1.3]:
Merge in Jmiller's last changes.

* runtime/uerror.scm[14.15]:
Remove reference to primitive file-read-char (gone), and use new names
for file primitives.

* runtime/savres.scm[14.13]:
Move the call to reset-gc-after-restore! from disk-save/kernel to
setup-image, since both disk-save and dump-world must take care of it.

1990-07-28 Guillermo J. Rozas <[email protected]>

* microcode/unxutl/Attic/y300.lcl[1.11]:
Make scmkit work again (under HP-UX 7.0) by invoking gld with the
-noinhibit-exec option.

* microcode/boot.c[9.62], microcode/dmpwrld.c[9.32],
microcode/ostop.h[1.2], microcode/unxutl/Attic/y300.lcl[1.10],
microcode/unxutl/Attic/ymkfile[1.26], microcode/ux.h[1.3],
microcode/uxio.c[1.3], microcode/uxproc.c[1.2],
microcode/uxterm.c[1.3], microcode/uxtop.c[1.2],
microcode/version.h[11.40]:
Resurrect dmpwrld.c .
Install hooks in various places so that IO descriptors, etc. are OK
after resuming execution.

1990-07-27 Guillermo J. Rozas <[email protected]>

* microcode/unexec.c[9.23]:
New version of unexec from emacs 18.55 .

* runtime/site.scm.unix[1.3]:
Fix pathnames after making altdorf the Switzerland server.

1990-07-26 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/rules3.scm[4.26]:
Fix bug in zero-entry multi closures. The allocation was done incorrectly.

1990-07-24 Chris Hanson <[email protected]>

* microcode/version.h[11.39], microcode/x11.h[1.6],
microcode/x11base.c[1.11], microcode/x11graph.c[1.6]:
Fix `graphics-clear' of X window to respect the clip rectangle.

1990-07-23 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/rulfix.scm[4.36]:
fixnum-pred-2->cc was renamed to fixnum-pred->cc. Remove left-over reference.

1990-07-22 Guillermo J. Rozas <[email protected]>

* compiler/machines/mips/compiler.pkg[1.2],
compiler/machines/mips/decls.scm[1.2],
compiler/machines/mips/machin.scm[1.2],
compiler/machines/mips/make.scm-big[4.73],
compiler/machines/mips/make.scm-little[4.73],
compiler/machines/mips/rules1.scm[1.2],
compiler/machines/mips/rules3.scm[1.2],
compiler/machines/mips/rulflo.scm[1.2]:
Merge in Jmiller's changes for multi-closures.

* compiler/machines/spectrum/dassm3.scm[1.2]:
Replace uses of land and quotient with fix:and and fix:quotient,
respectively.
Note: Uses of fix:quotient should be replaced with uses of fix:lsh.

* compiler/machines/spectrum/dassm2.scm[4.17]:
Fix minor bugs in disassembly (some instructions were missing the
completer).

* compiler/machines/spectrum/dassm1.scm[4.15]:
Fix bug in compiler:disassemble by which only half of the variable
caches was being displayed.

* compiler/machines/spectrum/compiler.pkg[1.30],
compiler/machines/spectrum/decls.scm[4.27],
compiler/machines/spectrum/lapgen.scm[4.35],
compiler/machines/spectrum/machin.scm[4.22],
compiler/machines/spectrum/make.scm[4.74],
compiler/machines/spectrum/rules1.scm[4.33],
compiler/machines/spectrum/rules3.scm[4.25],
compiler/machines/spectrum/rulfix.scm[4.35],
compiler/machines/spectrum/rulrew.scm[1.3]:
Update to version match 68k compiler version 4.74.
Multi closures.
Bit-wise fixnum operations.
Add out-of-line multiply and divide (quotient and remainder) routines
that use the floating-point co-processor.

* microcode/prosio.c[1.2]:
Fix missing end-of-line back-slash in the documentation string for
FILE-FILL-INPUT-BUFFER.

* microcode/x11base.c[1.10]:
Fix unitialized variable bug in xw_wait_for_window_event.
Typo in the previous check-in.

* microcode/x11base.c[1.9]:
Fix unitialized variable bug in xw_wait_for_window_event.

1990-07-20 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/lapgen.scm[4.35]:
Improve code sequence for constant second argument to
FIXNUM-REMAINDER.

* runtime/version.scm[14.90]:
Improve copy-program, and move it to a separate file (prgcop) and
package (runtime program-copier).

* runtime/runtime.pkg[14.72]:
Add package definition for package (runtime program-copier).

* runtime/make.scm[14.23]:
Add initialization for package (runtime program-copier).

* runtime/global.scm[14.16]:
Remove copy-program. It now lives in prgcop.scm .

1990-07-19 Guillermo J. Rozas <[email protected]>

* runtime/scomb.scm[14.8]:
Add fixnum-lsh to list of primitives that can be constant-folded.

* microcode/fixnum.c[9.32]:
Take word size into account. Shifts past fixnum size always return
0.

* compiler/machines/spectrum/instr1.scm[1.2]:
Add the NV condition to extract-deposit-condition.

1990-07-18 Chris Hanson <[email protected]>

* runtime/version.scm[14.89]:
Handle EOF on the console input.

1990-07-16 Chris Hanson <[email protected]>

* runtime/gc.scm[14.5], runtime/runtime.pkg[14.71],
runtime/savres.scm[14.12], runtime/version.scm[14.88]:
Change restart sequence so that bands dumped from Emacs will restore
correctly.

1990-07-16 Guillermo J. Rozas <[email protected]>

* microcode/gpio.c[1.6]:
Enable io_burst mode. It speeds up small transfers significantly.

1990-07-16 Mark Friedman <[email protected]>

* microcode/version.h[11.38]:
New treatment of X events.

There is now a global X event queue which can be accessed by scheme
primitives.

Added select() in ux.h

* microcode/ux.h[1.2]:
Added select().

* microcode/x11.h[1.5], microcode/x11base.c[1.8],
microcode/x11graph.c[1.5], microcode/x11term.c[1.9]:
New treatment of X events.

There is now a global X event queue which can be accessed by scheme
primitives.

1990-07-15 Guillermo J. Rozas <[email protected]>

* sf/gconst.scm[4.8]:
Add fix:lsh

* compiler/machines/bobcat/lapgen.scm[4.34],
compiler/rtlgen/opncod.scm[4.39], microcode/fixnum.c[9.31],
microcode/version.h[11.37], microcode/version.h[11.36]:
Add fixnum-lsh.

1990-07-13 Guillermo J. Rozas <[email protected]>

* microcode/gpio.c[1.5]:
Add io_timeout_ctl to gpio-open.

1990-07-12 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/dassm1.scm[4.15]:
Fix bug in disassembler/write-linkage-section by which only
even-numbered variable caches were being printed.

1990-07-03 Mark Friedman <[email protected]>

* runtime/version.scm[14.87]:
Added dynamic-state-let (in syntax.scm), which is like fluid-let
except that it allows an arbitrary dynamic state space as an argument.

* runtime/Attic/syntax.scm[14.12]:
Added dynamic-state-let, which is like fluid-let except that it allows
an arbitrary dynamic state space as an argument.

1990-06-28 Guillermo J. Rozas <[email protected]>

* runtime/scomb.scm[14.7]:
Rename fixnum and flonum entries to use the microcode primitive name,
rather than the convenient name.

* microcode/uxtrap.c[1.2]:
Fix trap_handler so that the saved_* parameters are set up correctly
before invoking trap_recover. This fixes the bug by which all traps
were reported as "User microcode reset".

Add find_signal_code_name to generate a string for the signal code
using DECLARE_UX_SIGNAL_CODES defined in uxtrap.h .

Modify setup_trap_frame to use find_signal_code_name .

Fix find_block_address_in_area to not run into an infinite loop (it
was not incrementing the area pointer on most objects).

* microcode/uxtrap.h[1.2]:
Add definition of DECLARE_UX_SIGNAL_CODES to allow better reporting of
hardware traps.

* microcode/unxutl/Attic/ymkfile[1.25]:
Fix dependencies for uxtrap.o .

* microcode/purify.c[9.44]:
Fix consistency test after the second phase of purify. It no longer
depends on FLOATING_ALIGNMENT and only on whether constant space was
not overrun by the purification.

* microcode/purutl.c[9.39]:
Change find_constant_space_block to return the address of the first
word of the block where the object is found, rather than the address
of the last word of the previous block.

Change impurify to never impurify flonums.

Remove extraneous conditionalization on FLOATING_ALIGNMENT.

* microcode/cmpgc.h[1.13]:
Change the definition of PLAUSIBLE_CC_BLOCK_P to handle two cases:
expression blocks, and single procedure blocks generated when the
compiler compiles by procedures.

* microcode/cmpintmd/mc68k.h[1.15]:
Define ENTRY_PREFIX_LENGTH for use in cmpgc.h .
This allows PLAUSIBLE_CC_BLOCK_P to answer true to blocks with single
procedures.

* runtime/conpar.scm[14.15], runtime/runtime.pkg[14.70]:
Export two more hardware trap utilities for the error handler.

* runtime/conpar.scm[14.14], runtime/error.scm[14.10]:
Better reporting of hardware traps.

* runtime/infutl.scm[1.17]:
compiled-entry/block is the identity on compiled code blocks.

* runtime/version.scm[14.86]:
Better reporting of hardware traps.
compiled-entry/block is the identity on compiled code blocks.
Fixnum operations can now be constant folded by the syntaxer.

1990-06-27 Guillermo J. Rozas <[email protected]>

* runtime/scomb.scm[14.6]:
Add fixnum and flonum operations to the list of procedures that can be
constant-folded by the runtime system.

* compiler/base/utils.scm[4.16]:
Add bit-wise boolean operations to the list of functions the compiler
can open-code and whose results can be shared.

Change the date.

* compiler/base/utils.scm[4.15]:
Add bit-wise boolean operations to the list of functions the compiler
can open-code and whose results can be shared.

1990-06-26 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/lapgen.scm[4.33],
compiler/machines/bobcat/make.scm-68040[4.74],
compiler/rtlgen/opncod.scm[4.38]:
Add open coding for bit-wise boolean operations, and
primitive-object-ref/set! .

Enable the open coding of fixnum-quotient and fixnum-remainder.

Add optimizations for these operations when the second operand is a
power of 2 (tricky, see GLS's paper "Arithmetic shifting considered
harmful").

1990-06-25 Guillermo J. Rozas <[email protected]>

* runtime/version.scm[14.85], sf/gconst.scm[4.7], sf/make.scm[4.14]:
Add fixnum bit-wise operations.

* microcode/gpio.c[1.4]:
Change gpio-read-string and gpio-write-string to take position and
count parameters, rather than just count parameters. This speeds up
output when it is divided into chunks.

* microcode/unxutl/Attic/y300.lcl[1.9]:
Add "rm -f" lines to the rules for scm6003, scmkit, and scmLYN to
guarantee the correct ownership on the file.

* microcode/unxutl/Attic/ymkfile[1.24]:
Add "rm -f" lines to the scheme and bchscheme rules to guarantee the
correct ownership on the file.

* microcode/fixnum.c[9.30], microcode/version.h[11.35]:
Add bit-wise fixnum operations.

1990-06-22 Chris Hanson <[email protected]>

* microcode/uxfs.c[1.2]:
In `OS_file_remove_link', delete regular files no matter how many
links they have.

* runtime/emacs.scm[14.5], runtime/intrpt.scm[14.4],
runtime/runtime.pkg[14.69], runtime/version.scm[14.84]:
Implement `check-and-clean-up-input-channel' in runtime system --
microcode no longer provides this service.

1990-06-21 Chris Hanson <[email protected]>

* runtime/datime.scm[14.3]:
Use new `get-decoded-time' primitive.

* microcode/prosenv.c[1.3], microcode/prosenv.c[1.2]:
Forgot to convert elements of `get-decoded-time' to Scheme integers.

* runtime/io.scm[14.7], runtime/runtime.pkg[14.68],
runtime/version.scm[14.83]:
Change console-input-port so that it always buffers the input.
Because of this change there is no need to use the special terminal
input primitives -- these should be flushed from the microcode.
All buffered input channels now support the `interval' argument of the
`char-ready?' operation.

* microcode/utils.c[9.46]:
Patch to `Restore_History' from JMiller.

* microcode/osio.h[1.2], microcode/uxio.c[1.2],
microcode/uxterm.c[1.2], microcode/uxtty.c[1.2],
microcode/version.h[11.34]:
Change `OS_channel_read' and `OS_channel_write' to be interruptable,
so that any I/O can be interrupted by the user typing ^G. Fix minor
thinko in `OS_channel_close' that caused the console I/O channels to
be marked as closed even though they were still open.

* microcode/unxutl/Attic/makefile[1.10]:
.DEFAULT hack doesn't work very well, so disable it.

1990-06-21 Guillermo J. Rozas <[email protected]>

* microcode/unxutl/Attic/y300.lcl[1.8]:
Add dependencies on OS_PRIM_SOURCES for all usrdef.* .

* microcode/ppband.c[9.39]:
Fix bogus type declaration in Load_Data (FILE * -> SCHEME_OBJECT *).

1990-06-20 Chris Hanson <[email protected]>

* edwin/debuge.scm[1.39], edwin/editor.scm[1.193],
edwin/make.scm[3.19]:
Changes to match runtime system 14.82.

* edwin/edwin.sf[1.7], edwin/edwin.sf[1.6]:
Generate a .cref file when resyntaxing Edwin.

* runtime/dbgcmd.scm[14.7], runtime/emacs.scm[14.4],
runtime/input.scm[14.6], runtime/io.scm[14.6],
runtime/load.scm[14.17], runtime/make.scm[14.22],
runtime/output.scm[14.6], runtime/pathnm.scm[14.7],
runtime/rep.scm[14.14], runtime/runtime.pkg[14.67],
runtime/sfile.scm[14.4], runtime/uenvir.scm[14.17],
runtime/uerror.scm[14.14], runtime/version.scm[14.82]:
* Changes to operating system interface to match those introduced in
microcode version 11.33, which is required for this runtime system
version.

* The low-level channel abstraction has been changed -- it now
contains only a microcode channel descriptor and the channel type.
The microcode no longer knows the format of channels.

* Subprocess support has been temporarily removed. New subprocess
support is being designed to accompany changes in the microcode.

* The file-copy primitive is now written in Scheme using lower-level
file system and I/O operations.

* Use `input-port/immediate-mode' and `input-port/normal-mode' to
switch terminal mode. The operations `read-char-immediate' and
`peek-char-immediate' are now obsolete. REP loops force the input
port into normal mode, while the debugger forces it into immediate
mode.

* I/O buffering for input files, output files, and the console output
is now done in Scheme. The microcode provides no buffering.
These ports understand `buffer-size' and `set-buffer-size' operations
to control the amount of buffering. A buffer size of 0 disables
buffering entirely.

* `read-start!' and `read-finish!' are now optional operations on
input ports.

* An input or output port will now report the set of operations that
it responds to.

* microcode/Attic/config.h[9.55], microcode/bchdmp.c[9.51],
microcode/bchdmp.c[9.50], microcode/bchgcc.h[9.37],
microcode/bchmmg.c[9.55], microcode/bchmmg.c[9.54],
microcode/bchpur.c[9.50], microcode/bkpt.h[9.28],
microcode/boot.c[9.61], microcode/cmpauxmd/mc68k.m4[1.13],
microcode/cmpint.c[1.28], microcode/cmpint.h[10.4],
microcode/cmpintmd/mc68k.h[1.14], microcode/const.h[9.36],
microcode/daemon.c[9.28], microcode/debug.c[9.35],
microcode/default.h[9.33], microcode/dmpwrld.c[9.31],
microcode/extern.h[9.36], microcode/fasdump.c[9.48],
microcode/fasl.h[9.31], microcode/fasload.c[9.53],
microcode/fhooks.c[9.32], microcode/futures.h[9.27],
microcode/generic.c[9.34], microcode/history.h[9.26],
microcode/hooks.c[9.39], microcode/intercom.c[9.28],
microcode/interp.c[9.56], microcode/interp.h[9.33],
microcode/intrpt.h[1.8], microcode/m/Attic/hp9k800.h[1.5],
microcode/m/Attic/sun3.h[1.3], microcode/m/Attic/sun4.h[1.2],
microcode/memmag.c[9.44], microcode/mul.c[9.29],
microcode/ppband.c[9.38], microcode/prename.h[1.4],
microcode/prims.h[9.37], microcode/pruxfs.c[9.42],
microcode/purify.c[9.43], microcode/s/Attic/bsd4-2.h[1.4],
microcode/s/Attic/hpux.h[1.6], microcode/s/Attic/ultrix.h[1.7],
microcode/s/Attic/umax.h[1.2], microcode/scheme.h[9.32],
microcode/stack.h[9.28], microcode/step.c[9.28],
microcode/storage.c[9.46], microcode/sysprim.c[9.34],
microcode/unxutl/Attic/cf-dist.h[1.11],
microcode/unxutl/Attic/config[1.6],
microcode/unxutl/Attic/ymkfile[1.23], microcode/utils.c[9.45],
microcode/version.h[11.33], microcode/version.h[11.32],
microcode/x11term.c[1.8], microcode/xdebug.c[9.27],
microcode/zones.h[9.24]:
* Complete redesign of the operating-system interface. I/O is more
uniform and is able to take advantage of things like sockets, pipes,
ptys, etc. All I/O buffering is moved into the runtime system for
better performance with Scheme compiler code. Strong knowledge of
POSIX.1 should make porting to VMS easy once VMS supports POSIX.1.

* Change operating system conditionalizations to standard form
suggested by POSIX.1.

* Add FSF macros to support ANSI declarations.

* Add dynamic-stack package and obstacks.

* Provide higher-level utilities for parsing command line options.

* Instead of `Back_To_Eval', there is now a procedure
`abort_to_interpreter' which knows about everything that needs to be
cleaned up.

* Change names of some macros:

Pop STACK_POP
Push STACK_PUSH
Push_From STACK_LOCATIVE_PUSH
Pop_Into STACK_LOCATIVE_POP (similar)
Stack_Ref STACK_REF
Top_Of_Stack() STACK_REF(0)
Simulate_Popping STACK_LOC
Simulate_Pushing STACK_LOC (similar)
Stack_Distance STACK_LOCATIVE_DIFFERENCE (similar)
Pop_Primitive_Frame POP_PRIMITIVE_FRAME
Metering_Apply_Primitive PRIMITIVE_APPLY
Export_Regs_Before_Primitive EXPORT_REGS_BEFORE_PRIMITIVE
Import_Regs_After_Primitive IMPORT_REGS_AFTER_PRIMITIVE

* Sun assembler can't handle a constant used in "cmpaux-mc68k.m4", so
provide an option to rewrite that instruction as two instructions.

* Some compilers won't cast a function to an integer, so kludge around
it by mis-declaring the external function as an integer, taking it the
integer's address, and casting THAT to an integer.

* Move critical section code and termination code to their own files.

1990-06-14 Guillermo J. Rozas <[email protected]>

* microcode/bignum.c[9.32]:
Fix a bug in bignum_destructive_scale_up by which the most significant
digit of a bignum was not being scaled.

* microcode/bitstr.c[9.44]:
Fix more bugs in bit_string_to_bignum.

* microcode/bitstr.c[9.43], microcode/version.h[11.31.1.1]:
Fix bug in bit_string_to_bignum by which the top digit was not masked
according to the number of valid bits. Thus the result was larger
under certain conditions.

* runtime/unsyn.scm[14.8]:
Not all uses of lambda-list had been updated to pass four parameters
instead of three.

* runtime/scomb.scm[14.5]:
Add sequence-immediate-actions that does not flatten the structure.

* runtime/runtime.pkg[14.66.1.1], runtime/unsyn.scm[14.7]:
Add a unsyntaxer:macroize? flag to the unsyntaxer to get a more
"truthfull" result.

* runtime/version.scm[14.81]:
Add a unsyntaxer:macroize? flag to get a more "truthfull" result.

1990-06-13 Guillermo J. Rozas <[email protected]>

* sf/make.scm[4.13], sf/pardec.scm[4.3]:
Allow specification of arity for the INTEGRATE-PRIMITIVE-PROCEDURES
declaration.

* microcode/gpio.c[1.3]:
Add missing pair of parenthesis (how come gcc did not catch it?).

* microcode/gpio.c[1.2]:
Add new style primitives (multiple byte transfers, string based).
Add control primitives.
Add locking of the interface.

* microcode/unxutl/Attic/y300.lcl[1.7]:
Add rule for gpio.c .

1990-06-12 Guillermo J. Rozas <[email protected]>

* microcode/unxutl/Attic/y300.lcl[1.6]:
Remove scmkit from install.world.

* microcode/unxutl/Attic/makefile[1.9],
microcode/unxutl/Attic/y300.lcl[1.5]:
Add a .DEFAULT entry that re-invokes make on the target using
xmakefile.

* microcode/unxutl/Attic/y300.lcl[1.4]:
Add Franklyn's microcode and a microcode for hacking the toolkit. It
is a standard microcode plus gpio primitives.

1990-06-11 Guillermo J. Rozas <[email protected]>

* sf/xform.scm[4.3]:
Fix transform/definition to allow non-scanned top-level definitions.
The arise due to in-package.

* sf/make.scm[4.12]:
Fix transform/definition in xform.scm to allow non-scanned top-level
definitions. The arise due to in-package.

1990-06-07 Chris Hanson <[email protected]>

* compiler/back/bittop.scm[1.13], compiler/base/crsend.scm[1.4],
compiler/base/toplev.scm[4.29], runtime/global.scm[14.15],
runtime/udata.scm[14.13], sf/subst.scm[4.6]:
Rename references to primitives that have been renamed in the
microcode.

1990-06-04 Chris Hanson <[email protected]>

* runtime/load.scm[14.16], runtime/load.scm[14.15]:
When loading a .scm file, fetch the repl environment and syntax table
at the beginning of the load rather than for each expression in the
file. This means that changing the repl environment or syntax table
in the file will have no effect on the load.

1990-05-16 Chris Hanson <[email protected]>

* microcode/bignum.c[9.31], microcode/version.h[11.31]:
In bignum division when doing add-back because initial guess was too
large: if the add-back causes a carry it must be discarded.

1990-05-10 Chris Hanson <[email protected]>

* runtime/Attic/syntax.scm[14.11]:
`in-package' must not scan out the defines in its body.

1990-05-08 Chris Hanson <[email protected]>

* microcode/m/Attic/sun3.h[1.2]:
Use 6-bit type codes.

1990-05-07 Guillermo J. Rozas <[email protected]>

* compiler/machines/mips/make.scm-big[4.65],
compiler/machines/mips/make.scm-little[4.65]:
*** empty log message ***

1990-05-06 Guillermo J. Rozas <[email protected]>

* compiler/fgopt/subfre.scm[1.7]:
Fix one more problem in the interaction between multiclosures and
subproblem free variables.

1990-05-04 Guillermo J. Rozas <[email protected]>

* compiler/fgopt/subfre.scm[1.6]:
Fix a bug in walk-procedure that manifested itself in sf/subst.
The free variables in closures are determined exclusively by the
closure block, not by the free variables of the procedure block.

1990-05-03 Guillermo J. Rozas <[email protected]>

* compiler/fggen/fggen.scm[4.26]:
Change generate/sequence to process forms in order (left to right).
In this way, compilation by procedures compiles the procedures in the
order in which they appear in the file, producing predictable output.

* compiler/base/blocks.scm[4.13], compiler/base/infnew.scm[4.8],
compiler/base/lvalue.scm[4.18], compiler/base/proced.scm[4.16],
compiler/base/switch.scm[4.15], compiler/fgopt/blktyp.scm[4.15],
compiler/fgopt/closan.scm[4.15], compiler/fgopt/envopt.scm[1.7],
compiler/fgopt/offset.scm[4.7], compiler/fgopt/sideff.scm[1.7],
compiler/fgopt/subfre.scm[1.5], compiler/fgopt/varind.scm[1.4],
compiler/machines/bobcat/compiler.pkg[1.30],
compiler/machines/bobcat/dassm2.scm[4.17],
compiler/machines/bobcat/decls.scm[4.27],
compiler/machines/bobcat/lapgen.scm[4.32],
compiler/machines/bobcat/machin.scm[4.22],
compiler/machines/bobcat/make.scm-68040[4.73],
compiler/machines/bobcat/rules1.scm[4.33],
compiler/machines/bobcat/rules3.scm[4.24],
compiler/machines/bobcat/rules4.scm[4.12],
compiler/machines/bobcat/rulrew.scm[1.3],
compiler/rtlbase/rtlcon.scm[4.21], compiler/rtlbase/rtlexp.scm[4.16],
compiler/rtlbase/rtlty1.scm[4.17], compiler/rtlbase/rtlty2.scm[4.9],
compiler/rtlgen/fndblk.scm[4.11], compiler/rtlgen/fndvar.scm[1.5],
compiler/rtlgen/opncod.scm[4.37], compiler/rtlgen/rgcomb.scm[4.15],
compiler/rtlgen/rgproc.scm[4.12], compiler/rtlgen/rgrval.scm[4.16],
compiler/rtlgen/rgstmt.scm[4.15], compiler/rtlopt/rdflow.scm[1.2],
compiler/rtlopt/rinvex.scm[1.4]:
Add support for multi-closures, ie. closures with multiple (or no)
entry points that share the environment "frame".

* compiler/base/toplev.scm[4.28]:
Fix the lap->code example.
procedure-variables are now cleaned up after phase/setup-block-types
rather than phase/identify-closure-limits, since the multi-closure
code in phase/setup-block-types needs this information.

* compiler/back/symtab.scm[1.44]:
Increase the size of symbol tables. Symbol tables should be growing
(re-hashing) hash tables, but are currently fixed. The previous value
was too small for large compilation units. The current one may be too
large for small units, but oh well.

1990-04-27 Guillermo J. Rozas <[email protected]>

* microcode/pruxfs.c[9.41]:
One more step of making file-touch work better in a distributed
environment. Some changes for NFS (addition of special handling of
ESTALE), and better handling of some other conditions.

1990-04-23 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/hppa.h[1.12], microcode/cmpintmd/mips.h[1.3]:
Add ADJUST_CLOSURE_AT_CALL.

* microcode/cmpauxmd/mc68k.m4[1.12]:
Remove the interrupt multiclosure register setup and special entry
point.

* microcode/cmpintmd/mc68k.h[1.13]:
Add ADJUST_CLOSURE_AT_CALL.
Remove the interrupt multiclosure register setup.

* microcode/cmpint.c[1.27]:
Eliminate comutil_interrupt_multiclosure. It was not correct.
Modify comutil_interrupt_closure to accomodate closures in machines
where the environment pointer does not match the entry point.
This is done using a new macro ADJUST_CLOSURE_AT_CALL from
cmpint-xxx.h

1990-04-21 Guillermo J. Rozas <[email protected]>

* runtime/infutl.scm[1.16], runtime/runtime.pkg[14.66],
runtime/udata.scm[14.12], runtime/uenvir.scm[14.16],
runtime/version.scm[14.80]:
New information in closure dbg blocks to accomodate multiclosures and
make the accessors/mutators architecture independent.

1990-04-21 Jim Miller <[email protected]>

* microcode/cmpint.c[1.26]:
Fixed bug in comutil_interrupt_dlink (passing 2 instead of 3 arguments
to compiler_interrupt_common).

1990-04-19 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/mc68k.m4[1.11]:
- Change "link.l" into "link" because Asmcvt does not understand it.
- Change "jmp(%a0)" into "jmp (%a0)" because Asmcvt does not parse
it correctly.

1990-04-17 Chris Hanson <[email protected]>

* microcode/version.h[11.30]:
*** empty log message ***

* microcode/s/Attic/hpux.h[1.5]:
For hp-ux 7.0, must define _HPUX_SOURCE if the compiler is ANSI C.

* microcode/bintopsb.c[9.45], microcode/ppband.c[9.37],
microcode/pruxfs.c[9.40], microcode/psbtobin.c[9.41]:
Eliminate (now incorrect) declarations for various procedures defined
in the C library.

* microcode/sgraph_a.c[1.12]:
Fix conversion of Scheme argument to fopen.

* microcode/unxutl/Attic/ymkfile[1.22]:
"bignum.o" depends on "limits.h".

1990-04-13 Mark Friedman <[email protected]>

* runtime/version.scm[14.79]:
Added LOAD-LATEST and FASLOAD-LATEST to load the most recently
modified of the LOAD/DEFAULT-TYPES (or FASLOAD/DEFAULT-TYPES). Also
added a LOAD/DEFAULT-FIND-PATHNAME-WITH-TYPE variable which LOAD and
FASLOAD will use (indirectly) to determine what file type to load. See
the rcs log for load.scm for more info.

1990-04-12 Chris Hanson <[email protected]>

* runtime/conpar.scm[14.13]:
Don't treat `restore-value' frame as a subproblem.

1990-04-12 Guillermo J. Rozas <[email protected]>

* microcode/pruxfs.c[9.39]:
Rewrite file_touch to use fstat after open rather than stat and then
open. This seems to reduce the problems with stale NFS handles, and
should affect nothing else.

* microcode/version.h[11.29]:
Add multi closure interrupt support.
Merge in some MIPS changes (bug fix to bitstrings, and file_touch).

* microcode/cmpint.c[1.25]:
Add comutil_interrupt_multiclosure.

* microcode/cmpauxmd/mc68k.m4[1.10], microcode/cmpintmd/mc68k.h[1.12]:
Add asm_interrupt_multiclosure.

* microcode/bitstr.h[1.7]:
Fix a bug in BIT_STRING_INDEX_PAIR_TO_INDEX for machines with vax byte
order.

* microcode/s/Attic/ultrix.h[1.6]:
Forgot to change the copyright date.

* microcode/s/Attic/ultrix.h[1.5]:
Add `#undef ultrix' for unknown reasons -- JMiller.

* microcode/Attic/config.h[9.54]:
Bump the default space parameters on the MIPS when there is compiler
support.

* microcode/m/Attic/mips.h[1.3]:
Add 6 bit type codes and an optimizer switch to be able to handle
interp.c

1990-04-12 Mark Friedman <[email protected]>

* runtime/load.scm[14.14]:
Oops, forgot some initializations for the LOAD-LATEST stuff. See the
log for the last version for more info.

* runtime/load.scm[14.13], runtime/runtime.pkg[14.65]:
Added LOAD-LATEST and FASLOAD-LATEST to load the most recently
modified version among the LOAD/DEFAULT-TYPES.

Added a variable LOAD/DEFAULT-FIND-PATHNAME-WITH-TYPE which may be set
to a procedure which tells load how to decide which file type to use.
The procedure accepts a pathname and a list of file type strings
(usually this will be LOAD/DEFAULT-TYPES) and should return the
complete pathname for load to use.

1990-04-10 Chris Hanson <[email protected]>

* microcode/version.h[11.28]:
Change `file-open-channel' primitive to permit opening a file in
append mode. The second argument to this primitive is now interpreted
as follows:

#F => open for input
#T => open for output
else => open for append

* runtime/io.scm[14.5], runtime/runtime.pkg[14.64],
runtime/version.scm[14.78]:
Add optional second argument to `open-output-file': if supplied and
not false, the file is opened for append.

* runtime/numint.scm[1.2]:
Rename local variable to prevent confusion during debugging.

* runtime/Attic/syntax.scm[14.10]:
Detect and signal error for `(let 3 4)'.

* runtime/load.scm[14.12], sf/make.scm[4.11], sf/toplev.scm[4.7]:
Force top-level syntax definitions to be local to the file in which
they appear.

1990-04-09 Chris Hanson <[email protected]>

* compiler/machines/spectrum/instr2.scm[1.2]:
Fix broken movb and movib instruction definitions.

* compiler/machines/spectrum/rules3.scm[4.24]:
Fix broken qualifier.

* compiler/machines/spectrum/lapgen.scm[4.30]:
Fix definition of type-scale-factor.

1990-04-09 Guillermo J. Rozas <[email protected]>

* microcode/cmpgc.h[1.12]:
Fix macro definition from last change.

* microcode/bchmmg.c[9.53], microcode/cmpgc.h[1.11],
microcode/cmpintmd/mips.h[1.2], microcode/fasload.c[9.52],
microcode/memmag.c[9.43]:
Add code to flush the I-cache at the right times: After storing an
execute cache entry, and after major relocations (GC and
disk-restore).

1990-04-04 Guillermo J. Rozas <[email protected]>

* compiler/etc/xcbfdir.scm[1.2]:
Remove check window by using file-touch, that returns #t or #f
depending on whether the file existed or not.

* microcode/pruxfs.c[9.38], runtime/unxprm.scm[1.8]:
Change file-touch to return #t if the file did not exist previously
and was succesfully created, #f if it existed, and was succesfully
modified, and an error string otherwise.

* runtime/unxprm.scm[1.7]:
Change file-touch to give an error only if the result of the primitive
is an error string.

1990-04-03 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/insmac.scm[1.126]:
Allow (pseudo) instructions to expand into no code.

* compiler/machines/bobcat/instr3.scm[1.17]:
Make BSR to the following instruction cause an error at assembly time.

* compiler/back/linear.scm[4.11]:
Prevent the diamond rule for pblocks from generating the same block on
both branches, the assembler will then complain because of duplicate
labels.

* microcode/bitstr.c[9.42]:
Forgot to change > to != in last change.

* microcode/bitstr.c[9.41]:
Eliminate dependency on byte order from BIT-SUBSTRING-FIND-NEXT-SET-BIT.
Use INC_BIT_STR_PTR rather than pre-decrementing.

* compiler/machines/spectrum/make.scm[4.72]:
Fix load-interface-args! which was clearing the wrong registers.

Fix rulrew which was constant folding object->type and object->datum
incorrectly.

Improve code sequences generated for inline-coded generic arithmetic
in reduction position when arguments are constant.

Make compiler declarations propagate when compile-by-procedures? is
on.

* compiler/machines/spectrum/lapgen.scm[4.29]:
Fix load-interface-args! which was clearing the wrong registers.

* compiler/rtlgen/opncod.scm[4.36]:
Patch inline code so that inliners that call out of line will see
constant operands rather than stack locations.

* compiler/machines/bobcat/rulrew.scm[1.2],
compiler/machines/spectrum/rulrew.scm[1.2]:
Fix broken rewrite rules by which generic arithmetic with a constant
argument was always calling off-line.

* compiler/base/toplev.scm[4.27], compiler/fggen/canon.scm[1.8],
compiler/fggen/fggen.scm[4.25]:
Make top level declarations propagate when compile-by-procedures is
turned on.

* compiler/machines/bobcat/make.scm-68040[4.72]:
Fix bugs in rulrew by which generic arithmetic with a constant
argument was always calling off-line.

Make top level declarations propagate when compile-by-procedures is
turned on.

* microcode/unxutl/Attic/ymkfile[1.21]:
Add MIPS compiler support, and remove nesting of #if's on PROC_TYPE.

* microcode/cmpgc.h[1.10]:
Add typedef of format_word when not HAS_COMPILER_SUPPORT.
It should never be used, but the macro stubs should guarantee this.

1990-04-02 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/make.scm[4.71]:
Update to match 68k.

lap:make-unconditional-branch returns an instruction sequence rather
than a single instruction because on machines with branch delay slots
and no nullification, a NOP must appear as well.

Comment out uses of expt, since compiler declarations don't work with
compile-by-procedures?

Add a test on endianness to expand-fields so that the same macros can
be used for all RISC machines.

* compiler/machines/spectrum/insmac.scm[1.2]:
Add a test on endianness to expand-fields so that the same macros can
be used for all RISC machines.

* compiler/machines/spectrum/machin.scm[4.21],
compiler/machines/spectrum/rulfix.scm[4.34]:
Comment out uses of expt, since compiler declarations don't work with
compile-by-procedures?

* compiler/machines/spectrum/lapgen.scm[4.28]:
lap:make-unconditional-branch returns an instruction sequence rather
than a single instruction because on machines with branch delay slots
and no nullification, a NOP must appear as well.

Comment out uses of expt, since compiler declarations don't work with
compile-by-procedures?

1990-04-01 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.71]:
Major change:

- New drifting/undrifting code and closure analysis.

Minor changes:

- lap:make-uncoditional-branch now returns a sequence of instructions,
rather than a single instruction.

- Uses of `expt' in machin and lapgen have temporarily been commented
out because the `usual-definition' declaration does not work when
`compile-by-procedures?' is turned on.

- letrec-value now gives only a warning when binding a trivial
closure.

- close-procedure! in blktyp now only gives a warning when a
non-trivial closure becomes trivial.

* compiler/machines/bobcat/machin.scm[4.21]:
Substitute constants for expressions computed with `expt'. The expt
constant-folding declaration is currently ignored (because of
compile-by-procedures? breaking compiler declarations) and since the
values are integrated, they were being computed in a zillion places.

* compiler/back/linear.scm[4.10],
compiler/machines/bobcat/lapgen.scm[4.31]:
lap:make-unconditional-branch now returns a sequence rather than a
single instructions. On machines with branch delay slots and no
nullification, a nop must be returned in addition to the branch
instruction.

* compiler/rtlgen/rgproc.scm[4.11]:
letrec-value no longer errors if a binding is a trivial closure.
There are perfectly legal programs where this happens, although they
are written in poor style. It now just gives a warning.

* compiler/fgopt/closan.scm[4.14]:
Nth revision of this code.

Improve the closing and undrifting code significantly. Many of the
procedures that were (needlessly) closed by the previous version are
no longer closed.

Undrifting constraints are computed more precisely.

Additionally, closing checks connectivity of the environment chain
(generating undrifting constraints as necessary) to ensure that all
the free variables captured are in fact available, and it also ensures
that disowned children (spliced out by the drifting code) are
undrifted if they depend on the closed-over variables.

One potential non-improvement introduced: Undrifting any procedure
forces its compatibility class to close, in order to avoid a harder
analysis. This is a cop-out for now.

* compiler/fgopt/envopt.scm[1.6]:
Get rid of funny drifting rules. Let-like procedures and others that
were previously not allowed to drift are now allowed to. The
undrifting code takes care of them.

* compiler/fgopt/blktyp.scm[4.14]:
It's OK for a non-trivial closure to become trivial, not the other way
around. The previous error is now split into a warning (in the
unexpected but bad case), and an error (in the bad case).

* microcode/bchdmp.c[9.49], microcode/bchgcc.h[9.36],
microcode/bchgcl.c[9.40], microcode/bchmmg.c[9.52],
microcode/bchpur.c[9.49]:
Fix bch system to run on machines with floating alignment.

* microcode/Attic/config.h[9.53]:
Add MIPS compiler support.

1990-03-28 Guillermo J. Rozas <[email protected]>

* compiler/rtlgen/fndvar.scm[1.4], compiler/rtlgen/rgstmt.scm[4.14]:
Add new method for finding variable that is used by stack-overwrite
mechanism. This new method does not use any tricks like variable
indirection to find the value, but produces a locative for that
particular variable.

* compiler/fgopt/closan.scm[4.13]:
Undrifting constraints must propagate transitively to free callers.
Undrifted procedures must be re-analyzed for Exporting.

1990-03-27 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/make.scm[4.70]:
Move switch.scm back to compiler/base, so it can be shared.
Update to match 68k version.

1990-03-26 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/compiler.pkg[1.28]:
Add compiler:noisy?
Move switch.scm back to compiler/base, so it can be shared.
Update to match 68k version.

* compiler/base/switch.scm[4.14], compiler/base/toplev.scm[4.26],
compiler/machines/bobcat/compiler.pkg[1.29]:
Add compiler:noisy?

* compiler/machines/spectrum/decls.scm[4.26]:
Move switch.scm back to compiler/base, so it can be shared.
Update to match 68k version.

* compiler/machines/spectrum/compiler.sf[1.12]:
Move switch.scm back to compiler/base, so it can be shared.

* sf/make.scm[4.10], sf/sf.pkg[4.6], sf/toplev.scm[4.6]:
Add sf:noisy? flag, and syntax&integrate global procedure.

* runtime/gcstat.scm[14.3]:
Modify gc-statistic/meter so that gcnote will not be confused.

* runtime/gcstat.scm[14.2], runtime/runtime.pkg[14.63]:
Add gc-timestamp for data structures that need to be updated after
gcs, but not necessarily after each gc.

1990-03-24 Guillermo J. Rozas <[email protected]>

* runtime/process.scm[1.3]:
Add arities to primitive definitions so that the file will syntax and
load in systems with no process primitives.

* compiler/machines/spectrum/rulfix.scm[4.33]:
Fix register*constant methods for plus-fixnum and minus-fixnum.
When adding 0 with overflow tests, they were not loading the target.

1990-03-21 Chris Hanson <[email protected]>

* compiler/fgopt/closan.scm[4.12], compiler/fgopt/sideff.scm[1.6],
compiler/machines/bobcat/make.scm-68040[4.70],
compiler/rtlgen/rgstmt.scm[4.13]:
When accessing `block-procedure', make sure it is a procedure before
using it as such; it might be an expression instead.

1990-03-16 Chris Hanson <[email protected]>

* runtime/process.scm[1.2]:
Fix unbound variable in `delete-process'. The `process/to-port' is an
output port, not an input port, so use the appropriate operation to
close it. Also do some slight reformatting.

1990-03-14 Chris Hanson <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.69]:
*** empty log message ***

* compiler/machines/bobcat/dassm3.scm[4.8]:
In `decode-ordinary-floating-instruction', always specify at least two
operands in the result, because the assembler does not understand the
one-operand syntax.

* compiler/machines/bobcat/lapgen.scm[4.30]:
In `two-arg-register-operation', don't delete reused alias of first
operand until the second operand's reference has been computed. This
prevents the reused alias from being mistakenly re-allocated for use
by the second operand.

1990-03-13 Chris Hanson <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.68]:
*** empty log message ***

* compiler/machines/bobcat/lapgen.scm[4.29]:
Conditionalize floating-point register load instructions to give
source type if loading from memory.

1990-03-12 Chris Hanson <[email protected]>

* compiler/machines/bobcat/lapgen.scm[4.28]:
Conditionalize binary floating-point open-coded operations on whether
the source is a register or not.

* compiler/machines/spectrum/lapgen.scm[4.27]:
Remove duplicate entry for fp6 from the list of initially available
registers.

1990-03-08 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/cf-dist.h[1.10]:
Add sun4 processor type.

1990-03-05 Guillermo J. Rozas <[email protected]>

* microcode/version.h[11.27]:
Add ^B ^X ^U ^G to the ^C handler.

1990-03-02 Mark Friedman <[email protected]>

* microcode/version.h[11.26], runtime/version.scm[14.77]:
Added subprocess support.

1990-02-27 Mark Friedman <[email protected]>

* runtime/make.scm[14.21], runtime/runtime.pkg[14.62]:
Added support for subprocesses.

* runtime/io.scm[14.4]:
Added support for subprocesses to OPEN-CHANNEL-WRAPPER.

* microcode/unxutl/Attic/ymkfile[1.20]:
Added support for unix subprocesses.

* microcode/unxutl/Attic/cf-dist.h[1.9]:
Added compiler flag ENABLE_SUBPROCESSES.

1990-02-25 Chris Hanson <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.67],
runtime/version.scm[14.76]:
*** empty log message ***

1990-02-24 Chris Hanson <[email protected]>

* compiler/rtlgen/opncod.scm[4.35]:
Open-code vector-8b ref and set operations.

1990-02-23 Chris Hanson <[email protected]>

* compiler/machines/bobcat/lapgen.scm[4.27]:
Don't use arithmetic right shift for division.

* runtime/defstr.scm[14.14]:
Eliminate some potential name conflicts in the expansion of a
`define-structure' macro.

1990-02-21 Guillermo J. Rozas <[email protected]>

* runtime/uerror.scm[14.13]:
Add more handlers for INTERNAL-APPLY-VAL types. Somehow some were
missed last time around.

1990-02-20 Guillermo J. Rozas <[email protected]>

* runtime/dbgutl.scm[14.9]:
Make debugger evaluation commands print out more like normal
evaluations in a rep-loop.

* runtime/gensym.scm[14.3]:
Allow strings as arguments to generate-uninterned-symbol.

1990-02-14 Chris Hanson <[email protected]>

* runtime/list.scm[14.12]:
Add definition of `alist?' that detects circularity.

1990-02-14 Guillermo J. Rozas <[email protected]>

* runtime/list.scm[14.11]:
Fix definition of list? to terminate even in the presence of circular
structure, as required by the standard.

1990-02-13 Chris Hanson <[email protected]>

* microcode/fasload.c[9.51]:
Initialize `Prev_Restore_History_Stacklet' to NULL rather than
SHARP_F.

* microcode/extern.c[9.30], microcode/hooks.c[9.38]:
Add \n\ to newlines in comments.

1990-02-12 Chris Hanson <[email protected]>

* microcode/flonum.c[9.34]:
Fix minor bug in last change.

1990-02-11 Chris Hanson <[email protected]>

* microcode/bignum.c[9.30], microcode/fasload.c[9.50],
microcode/flonum.c[9.33]:
Changes from JMiller that are needed to get this stuff running on the
DECStation 3100.

1990-02-10 Chris Hanson <[email protected]>

* runtime/option.scm[14.7], runtime/runtime.pkg[14.61],
runtime/version.scm[14.75]:
Add new hash-table abstraction; this is loaded by

(load-option 'hash-table)

This abstraction is very similar to that of Common Lisp.

1990-02-09 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.60], runtime/scode.scm[14.9]:
Define `symbol-hash-mod'.

1990-02-08 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/ymkfile[1.19]:
"fixnum.o" should depend on "mul.c", not "os.o".

* microcode/mul.c[9.28]:
Add changes to support gcc on the vax.

* runtime/make.scm[14.20], runtime/record.scm[1.4],
runtime/runtime.pkg[14.59], runtime/runtime.pkg[14.58]:
Fix cold-load problems.

1990-02-07 Chris Hanson <[email protected]>

* runtime/version.scm[14.74]:
*** empty log message ***

* runtime/record.scm[1.3]:
Implement new record proposal.

1990-02-07 Guillermo J. Rozas <[email protected]>

* microcode/unxutl/Attic/config[1.5]:
Add in sun4 (sparc) descriptions for Morry Katz.

1990-02-06 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/mc68k.m4[1.9], microcode/m/Attic/hp9k300.h[1.6]:
Changes by JMiller to make it work under HP cc and Sun cc (PCC?).
Structure returns are different for those two compilers and GCC.

1990-02-06 Panayotis Skordos <[email protected]>

* microcode/sgraph_a.c[1.11]:
*** empty log message ***

1990-02-02 Chris Hanson <[email protected]>

* compiler/back/lapgn2.scm[1.18], compiler/back/regmap.scm[4.10],
compiler/base/ctypes.scm[4.15], compiler/base/debug.scm[4.13],
compiler/base/lvalue.scm[4.17], compiler/fggen/fggen.scm[4.24],
compiler/fgopt/order.scm[4.14], compiler/fgopt/reuse.scm[1.5],
compiler/machines/bobcat/compiler.pkg[1.28],
compiler/machines/bobcat/decls.scm[4.26],
compiler/machines/bobcat/make.scm-68040[4.66],
compiler/rtlbase/regset.scm[1.3], compiler/rtlgen/rgproc.scm[4.10],
compiler/rtlgen/rgstmt.scm[4.12]:
* Add new operations to register allocator that determine whether
allocation will cause unloading or spilling of registers. Change the
operation `standard-register-reference' to use these operations when
deciding whether or not to refer to a register's home rather than
allocation a new alias for it.

* For an inline-coded procedure (e.g. LET), create an association
between each parameter of that procedure and the FG node that supplies
that parameter's value in the call. This association is used to
optimize the initialization of variables that will be stored in cells:
the cell for such a variable is created during the call rather than
after it. Previously, a stack-allocated parameter was initialized by
pushing its initial value, and then the contents of the stack location
were removed, placed in a new cell, and the cell stored back into the
stack location. Now, the parameter's value is wrapped in a cell
before being pushed.

* RTL output files have been changed to print uninterned symbols by
name.

* The code generated for assignments in value position has been
slightly changed to guarantee the correct order of events.
Previously, the order of the computation of the new value and the
fetching of the old value was indeterminate; now it is guaranteed that
the new value is computed before the old value is fetched.

* The bit-string representation of register sets has been restored.
This has a time penalty for small register sets, but guarantees that
access to the register sets is independent of the number of registers.
Certain programs with large numbers of registers were being
unreasonably penalized by the list-based representation. Also, the
dependencies for the file "rtlbase/regset" were adjusted to reflect
the files that actually refer to it.

* The RTL generated for cached variable assignments has been changed
to precompute the value of the assignment and store it in a pseudo
register. Previously, the code was replicated.

* runtime/arith.scm[1.14]:
New definition of `complex:acos' preserves more precision and is more
efficient. This one also does not introduce inexact real or imaginary
zero components in certain (important) boundary cases, such as:

(acos 2)
;Value: 0.+1.3169578969248166i

1990-01-31 Guillermo J. Rozas <[email protected]>

* microcode/fasdump.c[9.47], microcode/version.h[11.25]:
Fix bug in fasdump by which zero length files were left around when
the fasdump failed.

* runtime/load.scm[14.11]:
Fix bug in load/internal by which empty files caused an error in the
fasl check. peek-char returned an eof-object, and char->ascii barfed
on that.

Now, if the file is empty, it is loaded as a source file, whatever
that means.

1990-01-30 Guillermo J. Rozas <[email protected]>

* microcode/interp.c[9.55], microcode/version.h[11.24]:
Fix bug in Prepare_Apply_Interrupt noticed after last set of changes
(addition of RC_INTERNAL_APPLY_VAL).

1990-01-29 Guillermo J. Rozas <[email protected]>

* microcode/interp.c[9.54]:
Add the INTERNAL-APPLY-VAL return code. It replaces the procedure
with the current value of Val and then proceeds to apply. Apply
errors use this return code rather than INTERNAL-APPLY to restart.
Under normal operation there is no change since a POP-RETURN-ERROR
return code (which restores Val) is pushed as well, so to make use of
this feature the top few frames of the stack must be eliminated before
invoking the continuation.

* compiler/machines/spectrum/compiler.pkg[1.27],
compiler/machines/spectrum/compiler.sf[1.11],
microcode/returns.h[9.37], microcode/utabmd.scm[9.51],
microcode/version.h[11.23], runtime/conpar.scm[14.12],
runtime/framex.scm[14.10], runtime/uerror.scm[14.12],
runtime/version.scm[14.73]:
Add the INTERNAL-APPLY-VAL return code.

1990-01-25 Guillermo J. Rozas <[email protected]>

* compiler/machines/spectrum/assmd.scm[1.30],
compiler/machines/spectrum/coerce.scm[1.5],
compiler/machines/spectrum/dassm1.scm[4.14],
compiler/machines/spectrum/dassm2.scm[4.16],
compiler/machines/spectrum/decls.scm[4.25],
compiler/machines/spectrum/lapgen.scm[4.26],
compiler/machines/spectrum/machin.scm[4.20],
compiler/machines/spectrum/make.scm[4.65],
compiler/machines/spectrum/rgspcm.scm[4.1],
compiler/machines/spectrum/rules1.scm[4.32],
compiler/machines/spectrum/rules2.scm[4.12],
compiler/machines/spectrum/rules3.scm[4.23],
compiler/machines/spectrum/rules4.scm[4.11],
compiler/machines/spectrum/rulfix.scm[4.32],
compiler/machines/spectrum/rulflo.scm[4.32]:
New compiler port.

1990-01-24 Guillermo J. Rozas <[email protected]>

* runtime/savres.scm[14.11]:
Make setup-image do what the comment at the top of the file says when
identify is #f.

1990-01-23 Chris Hanson <[email protected]>

* compiler/rtlopt/rcseht.scm[4.11]:
`hash-table-copy', when copying the elements in a hash bucket, was
copying each element and then setting its previous-hash link to that
of the original element rather than its copy. Don't entirely
understand why this wasn't noticed before.

1990-01-23 Gerald Jay Sussman <[email protected]>

* microcode/bchmmg.c[9.51]:
Fix bug by which current_disk_position was not reset from the last
gc-like operation. When the files were swapped for fasdump, the
system might not lseek thinking that the pointer into the file was at
the correct place while it doesn't. Typical failure would be
"Could not read into the scan buffer" since the file was shorter than
expected.

1990-01-23 Guillermo J. Rozas <[email protected]>

* microcode/version.h[11.22]:
Conditionalize constant space sizes for the Spectrum.
Fix floating alignment bugs.
Fix bchdmp bug.

* microcode/psbtobin.c[9.40]:
Fix floating alignment.

* microcode/fasdump.c[9.46]:
Add floating alignment back.

1990-01-22 Chris Hanson <[email protected]>

* compiler/base/infnew.scm[4.7],
compiler/machines/bobcat/compiler.pkg[1.27],
compiler/machines/bobcat/make.scm-68040[4.65]:
Make changes to use more space-efficient representation for dbg-label
objects. These changes require runtime version 14.72 or later.

* runtime/infstr.scm[1.3], runtime/version.scm[14.72]:
Add new representation for `dbg-label', that is optimized for minimum
space consumption. Make the dbg-label operations generic so that they
handle both the old and new representations. By default, the
constructor makes the old representation. These changes are
upwards-compatible for old programs and old versions of the compiler.

* runtime/graphics.scm[1.3], runtime/starbase.scm[1.4]:
Change `operation/open' to handle #F as a result from
`starbase-open-device'.

1990-01-22 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/hppa.m4[1.8]:
Make gr2 be compile code's val register.
Fix trampoline_to_interface.
Fix the number of NOPs before hook_jump_table.
Fix the closure code.
Fix various comments.

* microcode/cmpintmd/hppa.h[1.11]:
Fix hppa_extract_absolute_address, hppa_store_absolute_address,
CLOSURE_SKIPPED_CHECK_OFFSET, and various comments.

* microcode/m/Attic/hp9k800.h[1.4]:
Version with compiler modifications.

* microcode/Attic/config.h[9.52]:
Bump the constant space and compiled constant space sizes for the
spectrum. Compiled binaries are 50% larger than on bobcats.

* microcode/bintopsb.c[9.44]:
Fix typo. print_a_bignum used && rather than &, causing all sorts of
problems.

* compiler/back/lapgn2.scm[1.17]:
Add missing ,@ in load-machine-register!

1990-01-21 Guillermo J. Rozas <[email protected]>

* microcode/version.h[11.21]:
Fix relocation bug in fasload.c

* microcode/fasload.c[9.49]:
Re-check in previous version since checked in on spectrum by mistake,
using built-in ci, rather than locally hacked version.

* microcode/fasload.c[9.48]:
Fix bug in fasload by which closures and linkage sections were not
being relocated correctly on machines where datums are not addresses.

1990-01-20 Chris Hanson <[email protected]>

* compiler/back/lapgn2.scm[1.16]:
Fix stupid editing mistake.

* microcode/gcloop.c[9.34]:
Add a debugging facility that keeps a history of `Scan' and `To'
during the GC loop. Conditionalize this and the trap-on-scan/free
facility on a new compiler switch, `ENABLE_GC_DEBUGGING_FEATURES'.

* compiler/back/lapgn2.scm[1.15],
compiler/machines/bobcat/rules4.scm[4.11]:
When forcing something into a specific machine register, as is done
for interpreter calls, make sure that anything cached in that register
is saved to a temporary first, if it's not needed.

1990-01-18 Chris Hanson <[email protected]>

* compiler/back/bittop.scm[1.12], compiler/back/bitutl.scm[1.4],
compiler/back/insseq.scm[4.3], compiler/back/lapgn1.scm[4.9],
compiler/back/lapgn2.scm[1.14], compiler/back/linear.scm[4.9],
compiler/back/regmap.scm[4.9], compiler/back/syntax.scm[1.25],
compiler/base/crsend.scm[1.3], compiler/base/crstop.scm[1.6],
compiler/base/debug.scm[4.12], compiler/base/macros.scm[4.10],
compiler/base/switch.scm[4.13], compiler/base/toplev.scm[4.25],
compiler/fgopt/subfre.scm[1.4],
compiler/machines/bobcat/compiler.pkg[1.26],
compiler/machines/bobcat/compiler.sf[1.12],
compiler/machines/bobcat/decls.scm[4.25],
compiler/machines/bobcat/lapgen.scm[4.26],
compiler/machines/bobcat/machin.scm[4.20],
compiler/machines/bobcat/make.scm-68040[4.64],
compiler/machines/bobcat/rules1.scm[4.32],
compiler/machines/bobcat/rules2.scm[4.12],
compiler/machines/bobcat/rules3.scm[4.23],
compiler/machines/bobcat/rules4.scm[4.10],
compiler/rtlbase/rgraph.scm[4.7], compiler/rtlbase/rtlcon.scm[4.20],
compiler/rtlbase/rtlexp.scm[4.15], compiler/rtlbase/rtlreg.scm[4.5],
compiler/rtlbase/rtlty1.scm[4.16], compiler/rtlbase/rtlty2.scm[4.8],
compiler/rtlbase/valclass.scm[1.2], compiler/rtlgen/opncod.scm[4.34],
compiler/rtlgen/rgrval.scm[4.15], compiler/rtlgen/rgstmt.scm[4.11],
compiler/rtlopt/rcompr.scm[1.10], compiler/rtlopt/rcse1.scm[4.20],
compiler/rtlopt/rcse2.scm[4.13], compiler/rtlopt/rcseep.scm[4.6],
compiler/rtlopt/rcseht.scm[4.10], compiler/rtlopt/rinvex.scm[1.3]:
* Disable early-syntaxing mechanism, and change back end to generate
LAP instead of assembler directives. The assembler is now responsible
for converting the LAP to assembler directives.

* Change RTL and LAP output options to cause RTL and LAP files to be
written as the information is generated. ".brtl" files are no longer
generated.

* Add concept of "suffix instructions" to the LAP generator.

* Disassociate per-instruction "dead registers" set from the set of
registers that need to be deleted after the instruction is generated.
This is needed because the LAP generator sometimes needs to know which
registers are dead _after_ the dead registers have been deleted.

* Many of the high-level register allocator operations have been
generalized so that they work for both machine and pseudo registers.
This simplifies the writing of powerful rules in the LAP generator.

* The LAP linearizer has been improved to notice certain common graph
patterns and generate them in a fixed way. For example, if one of the
branches of a conditional goes to a block that is a dead end, the
linearizer will now force the dead-end block to come before the other
branch; this has the advantage that it usually minimizes the branch
distance, and prevents that dead-end block from being far away from
the conditional.

* The value-class abstraction has been generalized to have more
classes, and the use of this information has been made more uniform
and complete.

* The cross-compiler now forces the per-procedure compilation switch
off.

* The `define-rule' macro has been generalized to allow it to be used
with user-defined rulesets.

* The RTL definition macros have been changed to collect the RTL
expression names in sets that indicate their type.

* The compiler now treats self-referential top-level definitions as
static by default.

* New RTL optimization passes perform limited dataflow analysis and
rewriting of the RTL. These permit the LAP-generation rules to be
tuned to more fully take advantage of the target machine's instruction
set.

* The subproblem free-variable analysis pass has been changed to
memoize information at every CFG node. The previous memoization
scheme had quadratic time complexity for certain programs.

* The RTL expression simplifier has been changed to force the use of
pseudo registers for all subexpressions, except the right-hand side of
a pseudo-register assignment. This guarantees the uniformity of the
code-generator's output, permitting the LAP-generator rules to be
reduced to a small minimal set.

* The RTL `unassigned-test' and `true-test' predicate types have been
replaced by `eq-test' with the appropriate argument.

* The RTL `constant' expression type has been replaced (in many
instances) by the new `machine-constant' type. The former is now used
only when the result is a Scheme object, while the latter is used to
represent constant fields of words. A `machine-constant' always has
an exact integer value.

* The RTL `offset' expression type has been changed so that it no
longer requires its first argument to be a register; now that may be
an arbitrary RTL expression.

* The RTL code compressor has been improved to handle many more
instruction types, and to permit stack-slot reference expressions to
be moved over stack pushes, adjusting their offsets in the process.

* The RTL CSE was not copying its state correctly, and as a result was
not doing as good a job as possible across certain conditional
branches.

* microcode/starbase.c[1.4], microcode/version.h[11.20]:
Suppress error messages when opening a graphics device, so that we can
use this primitive to test for the availability of the device. Also
fix typo in `starbase-write-image-file'.

* microcode/unxutl/Attic/y300.lcl[1.3]:
Change configuration of 6.003 Scheme to eliminate old graphics code
and to include standard starbase device driver libraries.

* microcode/sgraph_a.c[1.10]:
Eliminate `box-clear' primitive.

1990-01-17 Chris Hanson <[email protected]>

* runtime/starbase.scm[1.2]:
Fix typo in character-attribute setting routines.

1990-01-17 Gerald Jay Sussman <[email protected]>

* runtime/starbase.scm[1.3]:
*** empty log message ***

1990-01-17 Guillermo J. Rozas <[email protected]>

* runtime/bitstr.scm[14.2]:
Fix bug in signed-integer->bit-string by which it was not checking
whether the number would fit in the specified number of bits or not.

1990-01-16 Chris Hanson <[email protected]>

* microcode/s/Attic/hpux.h[1.4], microcode/unxutl/Attic/makefile[1.8],
microcode/unxutl/Attic/y300.lcl[1.2],
microcode/unxutl/Attic/ymkfile[1.18]:
Add new target `install' to simplify installation of Scheme binaries.

* microcode/fasload.c[9.47], microcode/version.h[11.19]:
Fix fencepost error in `disk-restore': when allocating space for a C
string, must allocate one more byte than the string's length to
account for trailing \0.

1990-01-15 Chris Hanson <[email protected]>

* runtime/dragon4.scm[1.3], runtime/runtime.pkg[14.57],
runtime/version.scm[14.71]:
Add new variable `flonum-unparser-cutoff', which controls the flonum
printer's precision. Acceptable values of this variable are:

NORMAL use all available precision
(RELATIVE <n>) <n> digits of precision
(ABSOLUTE <n>) <n> digits of precision after the decimal point

1990-01-15 Panayotis Skordos <[email protected]>

* microcode/array.c[9.42], microcode/image.c[9.31]:
*** empty log message ***

1990-01-12 Chris Hanson <[email protected]>

* microcode/bignum.c[9.29], microcode/version.h[11.18]:
Fix stupid bug in division that caused quotient to be off by one in
rare cases.

* microcode/generic.c[9.33], microcode/version.h[11.17]:
Make generic arithmetic primitives perform fixnum arithmetic as a
special case. This makes a factor of 10 difference for (fib 20) on an
interpreted system.

1990-01-11 Chris Hanson <[email protected]>

* runtime/arith.scm[1.13]:
Correct for scaling overshoot in `ratnum->flonum'.

1990-01-10 Chris Hanson <[email protected]>

* runtime/scode.scm[14.8]:
Fix typo from last edit.

* runtime/runtime.sf[14.5], runtime/version.scm[14.70]:
*** empty log message ***

* runtime/defstr.scm[14.13]:
Now that `vector-set!' is defined to return unspecific value we don't
need to force it into effect position.

1990-01-10 Hal Abelson <[email protected]>

* runtime/arith.scm[1.12]:
Fix case bug in `complex:expt'.

1990-01-04 Chris Hanson <[email protected]>

* runtime/scode.scm[14.7]:
Add error checking to symbol operations.

1990-01-02 Panayotis Skordos <[email protected]>

* microcode/fft.c[9.29], microcode/image.c[9.30]:
*** empty log message ***

1989-12-29 Chris Hanson <[email protected]>

* runtime/arith.scm[1.11]:
Fix definitions of `complex:acos' and `complex:angle' to handle
boundary conditions.

1989-12-29 Panayotis Skordos <[email protected]>

* microcode/array.c[9.41]:
*** empty log message ***

1989-12-20 Chris Hanson <[email protected]>

* compiler/machines/vax/rulfix.scm[1.2]:
Change definitions of 2/3-operand register-allocation procedures.

* compiler/machines/vax/lapgen.scm[4.9]:
Flush 2/3-operand register allocation procedures.

1989-12-20 Panayotis Skordos <[email protected]>

* microcode/array.c[9.40], microcode/fft.c[9.28],
microcode/sgraph_a.c[1.9]:
graphics and debug changes

1989-12-19 Chris Hanson <[email protected]>

* runtime/debug.scm[14.17]:
Change format used by the "Y" command.

1989-12-14 Chris Hanson <[email protected]>

* runtime/advice.scm[14.5]:
In `trace-display', no-argument case was putting close bracket at
beginning of empty line, when it should have been at the end of the
previous line.

1989-12-11 Chris Hanson <[email protected]>

* compiler/machines/bobcat/dassm2.scm[4.16],
compiler/machines/bobcat/lapgen.scm[4.25],
compiler/machines/bobcat/make.scm-68040[4.63],
compiler/machines/bobcat/rules1.scm[4.31],
compiler/machines/bobcat/rules2.scm[4.11],
compiler/machines/bobcat/rules3.scm[4.22],
compiler/machines/bobcat/rules4.scm[4.9]:
* Take advantage of new entry points in compiled code interface.
These changes require microcode 11.16 or later.

* Use BFEXTU instruction to extract type field. This instruction is
both faster and smaller than the previous sequence, for both 6 and 8
bit types. Use BFTST instruction to test for zero types.
Conditionalize use of the bit-field instructions on the new flag
`use-68020-instructions?'; I don't believe that we're using any other
68020-specific instructions besides these.

* Add rule for 1-arg fixnum predicates that tries to take advantage of
the preceding LSL.L instruction to test the number, rather than
emitting a redundant TST.L; this new rule is always used in generic
arithmetic expansions.

1989-12-10 Chris Hanson <[email protected]>

* microcode/cmpauxmd/mc68k.m4[1.8], microcode/cmpintmd/mc68k.h[1.11],
microcode/version.h[11.16]:
In the 680x0 compiled-code interface, added entry points for many
common entries; also added special entries for `apply' of small frame
sizes. These entry points save space in the compiled code,
eliminating the code expansion caused by the recent upgrade of the
compiled-code interface.

1989-12-08 Chris Hanson <[email protected]>

* runtime/unxprm.scm[1.6], runtime/version.scm[14.69]:
Add new primitive `file-attributes-indirect' that uses `stat' instead
of `lstat'. Change `file-modification-time' to use it.

* microcode/pruxfs.c[9.37], microcode/version.h[11.15]:
Add new primitive `file-attributes-indirect' that uses `stat' instead
of `lstat'.

1989-12-07 Chris Hanson <[email protected]>

* microcode/version.h[11.14]:
Cause floating-overflow traps to signal at all times. Change hardware
trap frames to contain the "code" passed into the signal handler.

* sf/toplev.scm[4.5]:
Make sure that time reports appear in decimal notation.

* runtime/conpar.scm[14.11], runtime/version.scm[14.68]:
Adjust parser for hardware trap frames to account for extra object
pushed by microcode.

* runtime/runtime.pkg[14.56], runtime/uerror.scm[14.11]:
If a microcode error is missing a handler, report the error without
special handling for the irritants.

* microcode/cmpint.c[1.24]:
Fix masking bug in `compiled_entry_type'.

1989-12-06 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/hppa.h[1.10]:
Modify comments to match the compiler and cmpaux-hppa.h

* microcode/cmpauxmd/hppa.m4[1.7]:
Add store_closure_code hook to save code space.

* microcode/bchdmp.c[9.48], microcode/bchgcl.c[9.39],
microcode/bchpur.c[9.48]:
Fix bug in code that detects whether the manifest closure count can be read.
The area forced to memory did not in fact include the count, so the
count read was garbage.

1989-12-05 Chris Hanson <[email protected]>

* compiler/rtlbase/rtlexp.scm[4.14]:
Don't consider `cons-closure' to be a trivial RTL expression.

* compiler/machines/bobcat/rules3.scm[4.21]:
Typo.

* compiler/machines/bobcat/lapgen.scm[4.24]:
Force use of address registers for indirection. If the register is
used once, the cost is about the same in both space and time.
However, if it is used more than once, this is both faster and
smaller.

* compiler/back/lapgn2.scm[1.13]:
Split `machine-register-reference' to create new procedure
`guarantee-alias-register!'. This new procedure is like
`load-alias-register!' except that it accepts a machine register as an
argument and handles it appropriately.

* compiler/rtlgen/rgcomb.scm[4.14]:
When compiling a reduction whose caller uses a dynamic link, don't
output link comparison code unless the callee is known to be an
internal procedure.

* compiler/machines/bobcat/rules3.scm[4.20]:
Change `move-frame-up' rule to use "mov" rather than "lea" when the
source is an address register.

1989-12-05 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.62]:
- Conditionalize open coding according to the port.
There is now a machine-dependent list
(compiler:primitives-with-no-open-coding) in machin.scm which disables
individual primitives.

- Extend fixnum and flonum operations with an overflow? flag.

- Force use of address registers for indirection.

- Don't emit dynamic-link comparison unless the called procedure is
known to be internal.

* compiler/machines/bobcat/rules1.scm[4.30],
compiler/rtlbase/rtlcon.scm[4.19], compiler/rtlbase/rtlty1.scm[4.15]:
Extend fixnum and flonum operations with an overflow? flag.

* compiler/machines/bobcat/machin.scm[4.19],
compiler/rtlgen/opncod.scm[4.33]:
Conditionalize open coding according to the port.
There is now a machine-dependent list
(compiler:primitives-with-no-open-coding) in machin.scm which disables
individual primitives.

1989-12-04 Guillermo J. Rozas <[email protected]>

* microcode/version.h[11.13]:
New compiled code interface.

* compiler/back/lapgn2.scm[1.12]:
Add three operand utilities for Vax, RISC, etc.

Add copy-to-special-register.

1989-12-03 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/hppa.m4[1.6], microcode/cmpintmd/hppa.h[1.9]:
Add scheme_to_interface_ble that falls through to
trampoline_to_interface. GR3 now holds the address of
scheme_to_interface_ble.

1989-12-02 Chris Hanson <[email protected]>

* compiler/fgopt/closan.scm[4.11]:
Don't undrift a procedure if the only reason for doing so is contagion
from trivial closures.

* compiler/base/toplev.scm[4.24]:
Force compilation times to be written out in decimal notation.

1989-11-30 Chris Hanson <[email protected]>

* runtime/arith.scm[1.10]:
Fix bug in `expt': zero raised to an integer power always returned
one. Fix bug in `asin': real arguments of magnitude larger than one
should be handled specially.

1989-11-30 Guillermo J. Rozas <[email protected]>

* microcode/unxutl/Attic/ymkfile[1.17]:
Add compiler support for spectrum, and change compiler support to use
the C version.

* compiler/machines/bobcat/dassm2.scm[4.15],
compiler/machines/bobcat/lapgen.scm[4.23],
compiler/machines/bobcat/machin.scm[4.18],
compiler/machines/bobcat/rules3.scm[4.19],
compiler/machines/bobcat/rules4.scm[4.8]:
New compiled code interface written in C.

Old hooks have been removed and the register block has been
restructured.

* compiler/rtlbase/rtlobj.scm[4.8], compiler/rtlgen/rtlgen.scm[4.22]:
New compiled code interface written in C.

rtl-procedures now included a field that specifies whether they
need a dynamic link so that the interrupt handler can be determined at
compile time.

* compiler/machines/bobcat/make.scm-68040[4.61]:
New compiled code interface written in C.

* microcode/cmpintmd/mc68k.h[1.10]:
Clean up machine dependent initialization. The assembly language
hooks are now set up by a procedure in this code.

* microcode/cmpauxmd/mc68k.m4[1.7]:
- Remove temporary compatibility code and old initialization code.
The hooks are now set up by code in cmpint-mc68k.h .

- Add an initialization procedure to diddle with the 68881.

* microcode/cmpint.c[1.23]:
Clean up machine dependent initialization.

* microcode/bintopsb.c[9.43]:
Fix bug in Do_Compiled_Entry: OBJECT_NEW_DATUM was incorrectly used
for MAKE_OBJECT, and thus all compiled entries were being dumped as
nulls with non-zero datum fields.

* microcode/Attic/config.h[9.51], microcode/bchmmg.c[9.50],
microcode/boot.c[9.60], microcode/dump.c[9.30],
microcode/memmag.c[9.42], microcode/object.h[9.34],
microcode/ppband.c[9.36], microcode/psbmap.h[9.32],
microcode/storage.c[9.45], microcode/version.h[11.12],
microcode/wsize.c[9.29]:
Fix bug in boot.c by which GC_Reserve was set after MemTop was
computed in Clear_Memory. GC_Reserve is now set by Clear_Memory.

Rename Heap_In_Low_Memory to HEAP_IN_LOW_MEMORY.

Clean up Spectrum stuff and remove previous version of the quad bit
kludge which forced 8 bit type codes to be used.

1989-11-28 Chris Hanson <[email protected]>

* runtime/sysclk.scm[14.2]:
When interconverting ticks and seconds, represent seconds as inexact
numbers and ticks as exact integers.

1989-11-28 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/hppa.h[1.8]:
Add a comment about a future improvement to eliminate the delay slot
nullification in execute cache cells.

* compiler/documentation/cmpint.txt[1.3]:
Document trampolines and interrupt checks.

* microcode/cmpintmd/hppa.h[1.7]:
Make EXTRACT_ABSOLUTE_ADDRESS and STORE_ABSOLUTE_ADDRESS call
out-of-line procedures which use bit fields rather than masks.

* microcode/cmpint.c[1.22]:
Add a IN_CMPINT_C flag so that cmpint2.h can insert code.

* microcode/cmpauxmd/hppa.m4[1.5]:
Fix segment and subsegment directives.
Fix table load instruction to use short pointer-specified segment.

* microcode/cmpint.c[1.21]:
Add a missing + sign in the computation of REGBLOCK_SIZE.

* microcode/cmpintmd/hppa.h[1.6]:
Fix the encoding of the space register on the instructions that take
a 3-bit space register code.

Remove COMPILER_HOOK_SIZE, no longer needed.

Remove ASM_REGBLOCK and ASM_RESET_HOOK.

1989-11-27 Guillermo J. Rozas <[email protected]>

* microcode/bintopsb.c[9.42]:
Fix a bug in bignum printing.

* microcode/cmpint.c[1.20]:
Conditionalize according to HAS_COMPILER_SUPPORT and insert the code
previously in compiler.c for the case when there is no support.

* microcode/cmpintmd/hppa.h[1.5], microcode/cmpintmd/mc68k.h[1.9]:
Remove casts from scalars on the left hand side of assignments. GCC
understands that, but the HP C compiler does not.

* microcode/cmpint.c[1.19]:
Change all variables assigned by EXTRACT_EXECUTE_CACHE_ADDRESS, etc.
to have consisten types.

* microcode/cmpauxmd/hppa.m4[1.4], microcode/cmpauxmd/mc68k.m4[1.6],
microcode/cmpgc.h[1.9]:
Fix the comment specifying where further documentation may be found.

* microcode/cmpintmd/hppa.h[1.4], microcode/cmpintmd/mc68k.h[1.8]:
Fix typo.

* microcode/cmpintmd/hppa.h[1.3]:
Fix the LDIL assembly and disassembly. The bits are not contiguous!

* microcode/cmpauxmd/hppa.m4[1.3]:
Add save/restore code for registers 15-18, also callee-saves.

* microcode/cmpintmd/hppa.h[1.2]:
Finish translating to Spectrum instruction set.

* microcode/cmpauxmd/hppa.m4[1.2]:
Make R3 hold trampoline_to_interface rather than scheme_to_interface.
scheme_to_interface is 4 bytes beyond trampoline_to_interface, so
it can be reached from the same register.

Fix the space register in the BLE instruction that invokes the
handler. We are jumping into code space, and the BLE instruction
does not understand short pointers.

* microcode/cmpgc.h[1.8], microcode/cmpint.c[1.18],
microcode/cmpintmd/mc68k.h[1.7]:
Clean up the mess with machine_word.

1989-11-26 Guillermo J. Rozas <[email protected]>

* microcode/bchdmp.c[9.47], microcode/bchgcl.c[9.38],
microcode/bchpur.c[9.47], microcode/fasdump.c[9.45],
microcode/fasload.c[9.46], microcode/gcloop.c[9.33],
microcode/purify.c[9.42], microcode/version.h[11.11]:
Clean up the mess with machine_word.

* microcode/cmpintmd/mc68k.h[1.6]:
Fix comment in header.

1989-11-23 Guillermo J. Rozas <[email protected]>

* compiler/documentation/cmpint.txt[1.2]:
Update to match the newer cmpint-md.h

* microcode/cmpauxmd/mc68k.m4[1.5]:
Change the comment at the beginning to make it a little clearer and
general.

Add shortcircuit_apply.

Reorganize the code so that the core, the optimizations, and the
backwards compatibility code are clearly separated.

1989-11-22 Guillermo J. Rozas <[email protected]>

* microcode/cmpint.c[1.17]:
Fix a bug backing out of apply. The procedure and number of arguments
were not being pused on the stack consistently, so there were some
paths that could not restart on interrupt, for example.

1989-11-21 Chris Hanson <[email protected]>

* runtime/infutl.scm[1.15]:
If `fasload' fails to load debugging information for some reason,
recover and pretend that the debugging info doesn't exist.

1989-11-21 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/mc68k.m4[1.4]:
Remove the patch in comentry_lexpr_apply used to temporarily overcome
the fact that dynamic links were not correctly preserved.
The compiler has been fixed, and the patch is no longer necessary.

* microcode/cmpint.c[1.16]:
Fix a bug in comutil_operator_lexpr_trap.
The number of arguments stored in the trampoline is 1 greater than the
number of actual arguments passed, but the primitive convention
expects the correct number.

* compiler/machines/bobcat/make.scm-68040[4.60],
compiler/rtlgen/rgcomb.scm[4.13], compiler/rtlgen/rgproc.scm[4.9]:
Fix a bug in local lexprs. The dynamic link register was not
preserved accross the call to lexpr-apply. On the 68k, a gc in
lexpr-apply would corrupt the dynamic link. On the portable
interface, it was always corrupted.

1989-11-20 Guillermo J. Rozas <[email protected]>

* microcode/cmpauxmd/mc68k.m4[1.3]:
Simple changes:

- Fix a bug: interface_to_C was not restoring the registers saved by
C_to_interface.

- Add scheme_to_interface_jsr entry point.

- Add a temporary patch to lexpr_apply to prevent the dynamic link
register from being clobbered.

- Add some conditionally assembled code to keep a limited history of
calls from compiled code to the interface.

* microcode/cmpint.c[1.15]:
Fix a small bug in compiler_interrupt_common: state was not being
restored when the interrupt was dismissed.

1989-11-15 Chris Hanson <[email protected]>

* runtime/arith.scm[1.9], runtime/version.scm[14.67]:
Add several missing `int:' prefixes to `ratnum->flonum'. Fix argument
order to `real:atan2' in `complex:angle'. Fix exact integer argument
test in `real:atan2'. Add code to perform exact `expt' when the first
argument is a recnum and the second is an exact integer.

* sf/gconst.scm[4.6]:
Define `int:>' as an integrable constant.

* compiler/machines/bobcat/make.scm-68040[4.59],
compiler/machines/bobcat/rules1.scm[4.29]:
Rules that perform index->fixnum conversions must use arithmetic left
shift so that proper testing for overflow can occur. The reason:
these rules also get invoked by generic arithmetic because the code
compressor sees them and combines instruction pairs to use them.

1989-11-11 Guillermo J. Rozas <[email protected]>

* microcode/fasload.c[9.45], microcode/unxutl/Attic/makefile[1.7],
microcode/unxutl/Attic/ymkfile[1.16], microcode/version.h[11.10],
microcode/x11term.c[1.7]:
Add a heuristic check to fasload so that it won't get into an infinite
loop trying to load something when there is no space.

Merge in Mike Clarkson's changes to x11term.c

Add a new file: x11xtra.c which includes some additional x11 xterm
functionality (scrolling and screen saving/restoring).

1989-11-10 Mark Friedman <[email protected]>

* edwin/unix.scm[1.11]:
Fixed os/trim-pathname-string() to have "end" point to the end of the
string, not to one past the end. The old behavior caused it to barf
when presented with a string with a slash at the end (it barfed on the
string-ref in "... ((memv ..."

1989-11-09 Gerald Jay Sussman <[email protected]>

* runtime/option.scm[14.6], runtime/runtime.pkg[14.55],
runtime/version.scm[14.65]:
Add optional arithmetic-interface code.

1989-11-09 Guillermo J. Rozas <[email protected]>

* runtime/arith.scm[1.8], runtime/version.scm[14.66]:
Fix bug in *, t he call to reduce was incorrect.

1989-11-07 Guillermo J. Rozas <[email protected]>

* microcode/cmpint.c[1.14]:
Fix a bug in compiled_entry_type by which lexprs were classified as
random entries. The min arity was read as the max, and viceversa.

1989-11-06 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/mc68k.h[1.5]:
Second batch of fixes to get scheme up:

Fix EXECUTE_CACHE_ENTRIES_TO_COUNT: It was using the free variable
count rather than the parameter entries.

* microcode/cmpint.c[1.13]:
Second batch of fixes to get scheme up:

- Fix the error backouts: They cannot use the expression register for
recovery information since the interpreter bashes it with the size of
the compiled code stack segment.

- Fix a couple of problems with the linker:
on restart it must restore the env register.
the recovery count was saved incorrectly (bad macro).

* microcode/lookup.c[9.43]:
Fix bug in force_definition to return error code when attempting to
force a definition in the empty environment.

* microcode/cmpgc.h[1.7]:
First batch of changes to run scheme:

Add MAKE_LINKAGE_SECTION_HEADER definition.

* microcode/cmpauxmd/mc68k.m4[1.2]:
First batch of changes to run scheme:

Add all the hooks needed for compatibility with the current compiler.

Add an ext.l in comentry_apply.

Add an entry in the register block for trampoline_to_interface.

Clean up the comentry_interrupt_procedure heuristic by invoking two
different comutils: comutil_interrupt_procedure (no dlink) and
comutil_interrupt_dlink.

* microcode/cmpintmd/mc68k.h[1.4]:
First batch of changes to run scheme:

Add ASM_REGISTER_BLOCK definition and ASM_RESET_HOOK.

A6_OFFSET was incorrect. It corresponded to scheme_to_interface, not
trampoline_to_interface.

Change the definitions of FORMAT_BYTE_MUMBLE and FORMAT_WORD_MUMBLE to
not depend on signed numbers being correctly cast.

* microcode/cmpint.c[1.12]:
First batch of changes to run scheme:

- Fix syntax problems.

- The trampoline arity table was accessed incorrectly. The incorrect
index was being computed.

- open_gap had an off-by-one error: The procedure is not on the stack,
so it does not need to be moved.

1989-11-02 Chris Hanson <[email protected]>

* compiler/base/toplev.scm[4.23], compiler/fgopt/varind.scm[1.3],
compiler/machines/bobcat/make.scm-68040[4.58],
compiler/machines/bobcat/rules1.scm[4.28],
compiler/rtlopt/rcompr.scm[1.9]:
* Change variable-indirection pass to occur after closure analysis.
Disable variable-indirection if either the source or target variable
is closed-over.

* Change RTL code-compression to permit compression of
`offset-address' expressions across multiple instructions. Add two
new rules needed to accomplish this for the standard static-link setup
code. The goal of this modification is to permit the use of the "pea"
instruction when pushing static-links.

1989-11-02 Guillermo J. Rozas <[email protected]>

* microcode/bchmmg.c[9.49], microcode/version.h[11.9]:
Fix bug in bchmmg.c by which weak pairs whose cars were compiled
procedures would not be updated correctly.

* microcode/unxutl/Attic/makefile[1.6]:
Add an extra line to remove junk.c before generating xmakefile.

1989-11-01 Guillermo J. Rozas <[email protected]>

* microcode/cmpintmd/mc68k.h[1.3]:
Add the instruction typedef (moved here from cmpint.c).

* microcode/cmpint.c[1.11]:
Remove the instruction typedef (in cmpint2.h now).

* microcode/cmpgc.h[1.6]:
Insert cmpgc-stub.h after conditionalizing according to
HAS_COMPILER_SUPPORT .

Rename to cmpgc.h from cmpgc-portable.h

1989-10-31 Chris Hanson <[email protected]>

* runtime/arith.scm[1.7]:
Reimplement flonum->ratnum conversion to guarantee that the ratnum
chosen is the closest representation possible; this is required by
definition of `inexact->exact'. Previously we used `rationalize' to
find "best" answer in a given range, which is not strictly correct by
the definition.

* runtime/arith.scm[1.6], runtime/version.scm[14.64]:
Reimplement ratnum->flonum conversion to guarantee that the flonum
chosen is the closest representation possible. Also extend
`number->string' to handle a few more of the old formats, specifically
the radix conversion formats.

1989-10-31 Guillermo J. Rozas <[email protected]>

* microcode/vector.c[9.33], microcode/version.h[11.8]:
Fix bug in vector-cons by which it was not checking for GC.

1989-10-30 Chris Hanson <[email protected]>

* runtime/dragon4.scm[1.2]:
Force the output to have a decimal point even when it can be written
without one. This is explicitly required by the text of the report.

1989-10-28 Chris Hanson <[email protected]>

* microcode/missing.c[9.26]:
Fix some random bugs in frexp that should have been caught when it was
written.

* compiler/rtlopt/rcse1.scm[4.19]:
Must discard CSE information at any kind of unknown invocation.

* runtime/numpar.scm[14.5]:
Fix bug which caused "1e100" to be rejected as number syntax.

* runtime/arith.scm[1.5]:
Fix `real:expt' so that it correctly handles negative base. Add
special case for flonum base and integer exponent.

* microcode/flonum.c[9.32]:
Remove restriction from first argument of primitive `flonum-expt'.
Rely on runtime system (or user) to provide correct restrictions.

1989-10-28 Guillermo J. Rozas <[email protected]>

* microcode/bchdmp.c[9.46], microcode/bchgcc.h[9.35],
microcode/bchgcl.c[9.37], microcode/bchpur.c[9.46],
microcode/bintopsb.c[9.41], microcode/fasdump.c[9.44],
microcode/fasload.c[9.44], microcode/gc.h[9.30],
microcode/gccode.h[9.42], microcode/gcloop.c[9.32],
microcode/interp.c[9.53], microcode/memmag.c[9.41],
microcode/purify.c[9.41], microcode/purutl.c[9.38],
microcode/unxutl/Attic/ymkfile[1.15], microcode/version.h[11.7]:
Various changes to the garbage collector and other relocators to
accomodate machines where jsr-style instructions do not encode the
target address directly and contiguously.

Some changes to cmp68kgc.h to better match the portable version,
cmpgc-portable.h .

Split the defaulting of various macros from gccode.h into
cmpgc-stub.h . gccode.h includes cmpgc.h which should be a copy of (or
link to) cmp68kgc.h, cmpvaxgc.h, cmpgc-portable.g, or cmpgc-stub.h

* microcode/cmpintmd/mc68k.h[1.2]:
Change COMPILED_CLOSURE_ENTRY_SIZE to be in machine_word s. The
closure entries may be packed tighter than objects.

* microcode/cmpgc.h[1.5]:
Change MANIFEST_CLOSURE_COUNT, FIRST_MANIFEST_CLOSURE_ENTRY, and
MANIFEST_CLOSURE_END to accomodate BCHSCHEME.

1989-10-27 Chris Hanson <[email protected]>

* runtime/arith.scm[1.4]:
Fix typo in `real:min'.

* compiler/fgopt/varind.scm[1.2],
compiler/machines/bobcat/make.scm-68040[4.57]:
Don't perform variable-indirection optimization on variables that are
introduced to model continuations.

* runtime/arith.scm[1.3], runtime/arith.scm[1.2]:
In `number->string', handle a radix argument of '(heur).

* runtime/unpars.scm[14.15]:
Don't call `compiled-procedure/name' on a compiled-entry unless that
entry is known to be a procedure type.

* runtime/uenvir.scm[14.15]:
Fix bug finding parent of stack-environment when there is a
continuation block between the starting block and the parent block.

* runtime/version.scm[14.63]:
*** empty log message ***

* runtime/runtime.pkg[14.54]:
Forgot to export `denominator'.

* runtime/numpar.scm[14.4]:
When parsing a badly-formed number with a #i prefix, don't blindly
attempt to map the result to inexact; test to see if the number is
well-formed first.

1989-10-27 Guillermo J. Rozas <[email protected]>

* microcode/cmpgc.h[1.4]:
Change the way that closure and execute cache entry points are
extracted to accomodate machines that have the addresses "smeared out"
over multiple instructions.

Change the way that closures with multiple entry points are detected.

* microcode/cmpint.c[1.10]:
Update to match latest version of cmp68020, ie. make the numeric hooks
apply the values contained in the fixed objects vector.

1989-10-26 Chris Hanson <[email protected]>

* microcode/Attic/config.h[9.50], microcode/boot.c[9.59],
microcode/fixobj.h[9.28], microcode/generic.c[9.32],
microcode/intprm.c[1.3], microcode/utabmd.scm[9.50],
microcode/version.h[11.6]:
* Change generic arithmetic primitives to be trampolines into some
procedures that are stored in the fixed objects vector. This permits
some upwards compatibility of new R4RS arithmetic and gives the
compiler a method for invoking the binary arithmetic operators which
are normally not available in the global environment. It also
provides a solution to the problem of making generic arithmetic
available during the cold load. The compiled-code interface bypasses
the primitive interface and directly applies these trampolines, thus
avoiding the overhead of the interface when the trampoline is also
compiled.

* Increase the default constant size of the regular band to 400, and
the heap size of the compiler band to 1000.

* compiler/back/lapgn1.scm[4.8], compiler/back/lapgn2.scm[1.11],
compiler/back/linear.scm[4.8], compiler/back/syntax.scm[1.24],
compiler/base/blocks.scm[4.12], compiler/base/cfg1.scm[4.4],
compiler/base/cfg2.scm[4.3], compiler/base/cfg3.scm[4.4],
compiler/base/crstop.scm[1.5], compiler/base/ctypes.scm[4.14],
compiler/base/debug.scm[4.11], compiler/base/infnew.scm[4.6],
compiler/base/lvalue.scm[4.16], compiler/base/object.scm[4.8],
compiler/base/proced.scm[4.15], compiler/base/toplev.scm[4.22],
compiler/base/utils.scm[4.14], compiler/fggen/fggen.scm[4.23],
compiler/fgopt/blktyp.scm[4.13], compiler/fgopt/closan.scm[4.10],
compiler/fgopt/contan.scm[4.9], compiler/fgopt/delint.scm[1.2],
compiler/fgopt/operan.scm[4.7], compiler/fgopt/order.scm[4.13],
compiler/fgopt/param.scm[1.2], compiler/fgopt/reuse.scm[1.4],
compiler/fgopt/simple.scm[4.6], compiler/fgopt/subfre.scm[1.3],
compiler/machines/bobcat/compiler.pkg[1.25],
compiler/machines/bobcat/dassm1.scm[4.14],
compiler/machines/bobcat/dassm2.scm[4.14],
compiler/machines/bobcat/decls.scm[4.24],
compiler/machines/bobcat/insmac.scm[1.125],
compiler/machines/bobcat/insutl.scm[1.8],
compiler/machines/bobcat/lapgen.scm[4.22],
compiler/machines/bobcat/make.scm-68040[4.56],
compiler/machines/bobcat/rules1.scm[4.27],
compiler/machines/bobcat/rules2.scm[4.10],
compiler/machines/bobcat/rules3.scm[4.18],
compiler/machines/bobcat/rules4.scm[4.7],
compiler/rtlbase/rgraph.scm[4.6], compiler/rtlbase/rtlcfg.scm[4.8],
compiler/rtlbase/rtlcon.scm[4.18], compiler/rtlbase/rtlexp.scm[4.13],
compiler/rtlbase/rtline.scm[4.10], compiler/rtlbase/rtlty2.scm[4.7],
compiler/rtlgen/fndvar.scm[1.3], compiler/rtlgen/opncod.scm[4.32],
compiler/rtlgen/rgcomb.scm[4.12], compiler/rtlgen/rgretn.scm[4.13],
compiler/rtlgen/rgrval.scm[4.14], compiler/rtlgen/rtlgen.scm[4.21],
compiler/rtlopt/rcse2.scm[4.12], compiler/rtlopt/rcseht.scm[4.9]:
* Rewrite the flonum lap-generation rules to perform register-reusing,
as is already the case for fixnum rules. Generalize some tools so
that most code can be shared between fixnum and flonum rules.

* Implement assorted changes to conform to new R4RS arithmetic.

* Redesign closure-analysis/procedure-undrifting. New design should
perform better than old, and I believe that this one is substantially
more correct.

* Add "variable indirections", which come into play when the a
variable is known to be bound to the value of another variable which
is bound in an ancestor frame of the first variable (i.e. the first
variable can be considered an alias for the second).

* Don't inline-code procedures with rest variables.

* New pass notices when two returns are equivalent, and merges them.
Another new pass notices when the tails of two basic blocks are
equivalent, and merges them. These two work together to eliminate
multiple copies of suffixes in various cases (most notably
predicates).

* Introduce concept that certain procedures are "boolean-valued" and
can be treated specially if they appear in the predicate of a
disjunction.

* Disconnect registerizable-parameter code because it introduces
instability in the three-stage compilation test. This code doesn't
seem to be doing much right now anyway.

* Fix bug in "remote links": must use another addressing-mode when the
offset is too large to fit in 16 bits.

* Add rule to permit static-links to be pushed in two instructions
instead of three on the 68020.

* Change RTL constructors to reduce the number of intermediate
registers generated for trivial expressions. Improve definition of
"trivial expression" to include certain kinds of constants.

* Change open-coded combinations in the case where they appear in
reduction position, and where the open-coding of the combination will
include a close-coded call. The new strategy is to setup the
arguments as if the combination was close-coded, then open-code
assuming the arguments are in those positions. This has the advantage
of allowing the internal close-coded call to be transformed into a
jump with no clumsy argument manipulation required.

* Change RTL CSE to treat small (8-bit) numeric constants as cheaper
than registers.

* runtime/advice.scm[14.4], runtime/conpar.scm[14.10],
runtime/debug.scm[14.16], runtime/equals.scm[14.2],
runtime/gcnote.scm[14.6], runtime/gensym.scm[14.2],
runtime/histry.scm[14.2], runtime/infutl.scm[1.14],
runtime/input.scm[14.5], runtime/list.scm[14.10],
runtime/make.scm[14.19], runtime/numpar.scm[14.3],
runtime/parse.scm[14.9], runtime/pp.scm[14.9],
runtime/random.scm[14.3], runtime/rep.scm[14.13],
runtime/runtime.pkg[14.53], runtime/runtime.sf[14.4],
runtime/scomb.scm[14.4], runtime/stream.scm[14.6],
runtime/system.scm[14.7], runtime/uerror.scm[14.10],
runtime/unpars.scm[14.14], runtime/unxprm.scm[1.5],
runtime/version.scm[14.62], runtime/x11graph.scm[1.4]:
* All-new arithmetic and number I/O conforms with R4RS.

* The variable

(access flonum-unparser-hook (->environment '(runtime number)))

accepts two arguments (the flonum and the radix), and returns either
the string representation or #f.

* `*unparser-radix*' is recognized only when it is one of (2 8 10 16),
and it affects only exact rationals. Inexact numbers and non-rational
complex numbers are always printed in base 10. The radix prefix is
suppressed in base 10, or in the other bases when the number's
absolute value is less than the radix.

* Written representation of compiled entries changed to show the
"block number".

* `pp' no longer accepts hash numbers as arguments; use #@ if you want
that effect (you will need to type '#@ for scode objects).

* `trace'/`break' output changed to show arguments more clearly.

* sf/gconst.scm[4.5], sf/make.scm[4.9], sf/sf.sf[4.5],
sf/subst.scm[4.5], sf/usiexp.scm[4.4]:
A variety of changes to complement the installation of the R4RS
arithmetic system in the runtime system. Most of these changes add
new expansions for arithmetic operations.

1989-10-26 Guillermo J. Rozas <[email protected]>

* microcode/cmpgc.h[1.3]:
Minor reorganization.

* microcode/cmpint.c[1.9]:
Write the initialization code.
Add the SCHEME_UTILITY table and define the TRAMPOLINE_K_ numbers.

1989-10-24 Guillermo J. Rozas <[email protected]>

* microcode/cmpint.c[1.8]:
More cleaning of the trampoline code so that the assembly language
is easier to write.

1989-10-23 Guillermo J. Rozas <[email protected]>

* microcode/cmpint.c[1.7]:
Some cleanup of the trampoline code.

* microcode/cmpgc.h[1.2]:
Update to use new microcode types and macros.

* microcode/cmpint.c[1.6]:
Add missing SCHEME_UTILITYs.
Fix a bug in comutil_link, and make the restart block match the 68k
and vax versions.
Reorganize and reformat slightly.

* microcode/cmpint.c[1.5]:
Change the way that SCHEME_UTILITYs are invoked, and add all of the
utilities currently being used by the compiler.

1989-10-20 Guillermo J. Rozas <[email protected]>

* microcode/unxutl/Attic/cf-dist.h[1.8]:
Add proc_type for the IBM RT.

* microcode/psbmap.h[9.31]:
Remove static keyword from the declaration of memory_base. GCC does
not like something to be declared both extern and static, and it is
declared extern in object.h, included here.

1989-10-14 Guillermo J. Rozas <[email protected]>

* runtime/Attic/syntax.scm[14.9]:
Fix syntax/cond so that:
a: (cond) is legal.
b: (cond 3) gives a reasonable error message.

1989-10-11 Guillermo J. Rozas <[email protected]>

* microcode/generic.c[9.31], microcode/version.h[11.5]:
Fix a bug in the error exits for &> .

* runtime/site.scm.unix[1.2]:
Add a global call/cc .

1989-10-10 Chris Hanson <[email protected]>

* runtime/conpar.scm[14.9]:
`stack-frame/ref' needs to be able to address elements in subsequent
stack frames as well as the given one.

* runtime/uenvir.scm[14.14]:
`environment-parent' wasn't skipping over intermediate static-links
correctly.

1989-10-04 Chris Hanson <[email protected]>

* sf/gconst.scm[4.4]:
Add new integer and flonum primitives. Delete arithmetic ops that
will no longer be primitives.

1989-10-03 Chris Hanson <[email protected]>

* runtime/version.scm[14.61]:
*** empty log message ***

* runtime/infutl.scm[1.13]:
Fix bug which prevented correct recognition of debugging info for the
root block of a multiple-block compilation.

* runtime/uenvir.scm[14.13]:
Add handling for dbg-variables with type `indirect'.

1989-09-29 Chris Hanson <[email protected]>

* compiler/Attic/Makefile[1.6]:
Change order of source directories to match order in which files are
compiled by "comp.cbf".

1989-09-28 Chris Hanson <[email protected]>

* runtime/version.scm[14.60]:
Add global definitions for selected flonum and integer-generic
primitives.

* microcode/fixnum.c[9.29], microcode/version.h[11.4]:
Add primitives `fixnum-quotient' and `fixnum-remainder'.

1989-09-25 Chris Hanson <[email protected]>

* microcode/findprim.c[9.42]:
Fix bug in `grow_data_buffer': forgot to update the pointers into the
reallocated structure.

* microcode/artutl.c[1.4], microcode/extern.h[9.35],
microcode/flonum.c[9.31], microcode/flonum.c[9.30],
microcode/version.h[11.3]:
Add new primitive `flonum-denormalize'.

1989-09-25 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.55],
compiler/machines/bobcat/rules1.scm[4.26]:
Add missing rule.

1989-09-24 Chris Hanson <[email protected]>

* microcode/artutl.c[1.3]:
Fix definition of `flonum_normalize'.

* runtime/runtime.pkg[14.52]:
Export `microcode-id/floating-epsilon'.

* microcode/Attic/config.h[9.49], microcode/boot.c[9.58],
microcode/flonum.c[9.29], microcode/intprm.c[1.2],
microcode/object.h[9.33], microcode/psbtobin.c[9.39],
microcode/psbtobin.c[9.38], microcode/scheme.h[9.31],
microcode/unxutl/Attic/ymkfile[1.14],
microcode/unxutl/Attic/ymkfile[1.13]:
Eliminate hand-coded flonum parameters in favor of those in "float.h".
These new parameters can be generated by hard-params, or if the system
has <float.h> we can use that instead.

* microcode/utabmd.scm[9.49], microcode/utabmd.scm[9.48],
runtime/utabs.scm[14.4]:
fixed-objects-vector now contains flonum-epsilon instead of
flonum-exponent-bits.

* runtime/utabs.scm[14.3], runtime/version.scm[14.59]:
Microcode's fixed-objects-vector now contains flonum-epsilon instead
of flonum-exponent-bits; change microcode table code to accomodate.

* microcode/artutl.c[1.2], microcode/extern.h[9.34],
microcode/flonum.c[9.28], microcode/unxutl/Attic/ymkfile[1.12],
microcode/version.h[11.2]:
Add primitives to normalize flonums, and to produce the key flonum
parameters: number of bits in significand, and smallest number which
can be added to one and still produce different result.

* compiler/machines/bobcat/make.scm-68040[4.54]:
*** empty log message ***

* compiler/base/toplev.scm[4.21]:
Don't set `*info-output-filename*' or `*rtl-output-pathname*' in
`compiler:reset!'; they are fluid-bound instead.

* compiler/fgopt/blktyp.scm[4.12]:
Change criterion used to decide whether or not to close procedures.
New criterion is to examine `procedure-closure-context', which will be
set to #t by the closure analysis iff it decides that the procedure
needs to be closed.

* compiler/fgopt/closan.scm[4.9]:
Change code back to clobber the procedure-block's parent when a
procedure is undrifted. If this is not done the operations
`block-ancestor-or-self?' and `block-nearest-common-ancestor' return
the wrong answers, and consequently must be replaced with new
operations that take the undrifting into account (yet another set of
nearly-identical operations!).

Rather than do this, I attacked the problem of why clobbering the
parent causes problems. The losing scenario seems to be as follows:
procedure A is a child of procedure B; procedure B and procedure C are
siblings; procedure A is a free-caller of procedure C (and so is
procedure B by transitivity); procedure B has drifted up one or more
blocks, while A and C have not drifted at all.

The problem occurs when A is examined before B for undrifting: because
C is not accessible from A (due to B's drifting), it is undrifted.
Later, B is also undrifted (because it is also a free-caller of C);
note that had B been undrifted before we looked at A there would have
been no reason to undrift A. Finally, `setup-block-types!' closes
both A and B because they have been undrifted, which allows them both
to reference their free variables; this reference is possible
-because- the original parent was not changed when the undrifting
occurred. Had the original parent been changed at that time, the
closing would have failed.

Now many times the only reason that A and B are being closed is
because of the undrifting -- there is really no reason for them to be
closed at all (in these cases, we would have been better off never
having tried to drift procedure A in the first place). Furthermore,
because this closing is bypassing the normal closing mechanism, some
other inconsistencies are introduced, in particular the
`virtual-closure?' bit is not cleared (it was the bug caused by this
inconsistency which forced me to reexamine this code in the first
place).

OK, so let's try this again. Suppose we -don't- close undrifted
procedures unless there's some other reason to do so (which we can
detect by looking at the `closure-context' or `closure-reasons').
Then the way to avoid the losing scenario above is to guarantee that
we undrift B before considering A for undrifting. This is easily
accomplished by performing a topological sort on the `free-callers'.
This sorting is sufficient because the decision to undrift A can only
depend on ancestors who are also members of the `free-callers' set.

So that's the story: I've added a topological sort of
`procedure-free-callers', changed `undrift-procedure!' to immediately
update the `procedure-closing-block', and changed `setup-block-types!'
to base the closing decision on `procedure-closure-context' rather
than (the now inaptly named) `close-procedure?'.

1989-09-22 Chris Hanson <[email protected]>

* microcode/missing.c[9.25]:
Fix a few random bugs.

* microcode/Attic/config.h[9.48], microcode/missing.c[9.24],
microcode/psbmap.h[9.30], microcode/unxutl/Attic/ymkfile[1.11],
microcode/unxutl/Attic/ymkfile[1.10]:
Add new switch `HAS_MODF', and conditionalize "missing.c" to use it.
Change makefile to include "missing.o".

1989-09-21 Chris Hanson <[email protected]>

* microcode/psbtobin.c[9.37]:
Work around bug in portable representation of flonums: the flonum 0.0
is written as "06 + 0". But this program always reads two numbers
after the sign, and furthermore treats the first one as the exponent,
and the -second- as the size in bits. This caused it to gobble up the
type code of the next word by accident.

* microcode/primutl.c[9.52]:
Fix typo which caused segmentation violation on disk-restore.

* microcode/unxutl/Attic/cf-dist.h[1.7]:
*** empty log message ***

* compiler/etc/comcmp.scm[1.2]:
Upgrade to handle split compiled-code files. Improve constants
comparison.

1989-09-20 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/makefile[1.5]:
*** empty log message ***

* microcode/Attic/config.h[9.47], microcode/array.c[9.39],
microcode/array.h[9.31], microcode/bchdmp.c[9.45],
microcode/bchgcc.h[9.34], microcode/bchgcl.c[9.36],
microcode/bchmmg.c[9.48], microcode/bchpur.c[9.45],
microcode/bignum.c[9.28], microcode/bignum.h[9.25],
microcode/bintopsb.c[9.40], microcode/bitstr.c[9.40],
microcode/bitstr.h[1.6], microcode/bkpt.c[9.23],
microcode/bkpt.h[9.27], microcode/boot.c[9.57],
microcode/breakup.c[9.22], microcode/char.c[9.28],
microcode/cmpint.h[10.3], microcode/comutl.c[1.19],
microcode/const.h[9.35], microcode/daemon.c[9.27],
microcode/debug.c[9.34], microcode/default.h[9.32],
microcode/dmpwrld.c[9.30], microcode/dump.c[9.29],
microcode/edwin.h[1.4], microcode/extern.c[9.29],
microcode/extern.h[9.33], microcode/fasdump.c[9.43],
microcode/fasl.h[9.30], microcode/fasload.c[9.43],
microcode/fft.c[9.27], microcode/fhooks.c[9.31],
microcode/findprim.c[9.41], microcode/fixnum.c[9.28],
microcode/flonum.c[9.27], microcode/future.c[9.27],
microcode/futures.h[9.26], microcode/gc.h[9.29],
microcode/gccode.h[9.41], microcode/gcloop.c[9.31],
microcode/generic.c[9.30], microcode/history.h[9.25],
microcode/hooks.c[9.37], microcode/hunk.c[9.26],
microcode/image.c[9.29], microcode/image.h[9.23],
microcode/intercom.c[9.27], microcode/intern.c[9.51],
microcode/interp.c[9.52], microcode/interp.h[9.32],
microcode/intrpt.h[1.7], microcode/list.c[9.28],
microcode/load.c[9.28], microcode/locks.h[9.24],
microcode/lookprm.c[1.4], microcode/lookup.c[9.42],
microcode/lookup.h[9.44], microcode/memmag.c[9.40],
microcode/missing.c[9.23], microcode/mul.c[9.27],
microcode/object.h[9.32], microcode/ppband.c[9.35],
microcode/prename.h[1.3], microcode/prim.c[9.33],
microcode/prim.h[9.41], microcode/prims.h[9.36],
microcode/primutl.c[9.51], microcode/pruxfs.c[9.36],
microcode/psbmap.h[9.29], microcode/psbtobin.c[9.36],
microcode/purify.c[9.40], microcode/purutl.c[9.37],
microcode/regex.c[1.9], microcode/regex.h[1.4],
microcode/returns.h[9.36], microcode/rgxprim.c[1.8],
microcode/sample.c[9.24], microcode/scheme.h[9.30],
microcode/scode.h[9.24], microcode/sdata.h[9.31],
microcode/sgraph.h[1.5], microcode/sgraph_a.c[1.8],
microcode/sgx.c[1.7], microcode/sgx11.c[1.2],
microcode/stack.h[9.27], microcode/starbase.c[1.3],
microcode/starbasx.c[1.3], microcode/step.c[9.27],
microcode/storage.c[9.44], microcode/string.c[9.33],
microcode/syntax.c[1.20], microcode/syntax.h[1.7],
microcode/sysprim.c[9.33], microcode/trap.h[9.42],
microcode/types.h[9.31], microcode/unexec.c[9.22],
microcode/unxutl/Attic/ymkfile[1.9], microcode/utils.c[9.44],
microcode/vector.c[9.32], microcode/version.h[11.1],
microcode/winder.h[9.24], microcode/wsize.c[9.28],
microcode/x11.h[1.4], microcode/x11base.c[1.7],
microcode/x11graph.c[1.4], microcode/x11term.c[1.6],
microcode/xdebug.c[9.26]:
Massive rewrite of microcode. All new object macros and organization.
New number primitives to support R4RS-compatible number system.
This microcode requires runtime version 14.58 or later.

* runtime/version.scm[14.58]:
Microcode version 11 requires this runtime version.

* runtime/stream.scm[14.5]:
Change algorithm used to compute prime numbers to make it more
efficient.

* runtime/hash.scm[14.2], runtime/io.scm[14.3], runtime/list.scm[14.9]:
Eliminate dependency on return value of modifier.

1989-09-20 Guillermo J. Rozas <[email protected]>

* compiler/base/toplev.scm[4.20], compiler/fggen/fggen.scm[4.22],
compiler/machines/bobcat/make.scm-68040[4.53]:
Fix another bug in first class environment code when combined with
compile-by-procedures.

1989-09-19 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/cf-dist.h[1.6]:
Add Harris HCX type.

1989-09-15 Guillermo J. Rozas <[email protected]>

* runtime/prop1d.scm[14.4], runtime/runtime.pkg[14.51],
runtime/version.scm[14.57]:
Fix bug in 1d-table/alist, and add 1d-table/for-each.

* compiler/fggen/fggen.scm[4.21],
compiler/machines/bobcat/make.scm-68040[4.52]:
Patch remaining bug in interaction between compile-by-procedures? and
first class environment decomposition.

For the time being, compile-by-procedures? is disabled within non top
level first class blocks (ie. in-package and make-environment).
This should ultimately be fixed.

1989-09-13 Guillermo J. Rozas <[email protected]>

* compiler/fggen/canon.scm[1.7], compiler/fggen/fggen.scm[4.20],
compiler/machines/bobcat/make.scm-68040[4.51]:
Fix bugs in fggen/{canon,fggen}.scm introduced when
compiler:compile-by-procedure? was added.

1989-09-05 Arthur Gleckler <[email protected]>

* compiler/base/switch.scm[4.12],
compiler/machines/bobcat/machin.scm[4.17],
compiler/machines/vax/machin.scm[4.6],
compiler/rtlgen/opncod.scm[4.31]:
Create switch COMPILER:OPEN-CODE-FLOATING-POINT-ARITHMETIC? in order to ensure
Bobcat floating-point open-coding is only attempted for Bobcats.

1989-08-29 Chris Hanson <[email protected]>

* edwin/decls.scm[1.10]:
Fix bug in last change.

* edwin/comred.scm[1.82], edwin/evlcom.scm[1.18], edwin/make.scm[3.18],
edwin/utils.scm[1.20]:
Setup error-handling when re-evaluating arguments (as in
repeat-complex-command), and also when reading expressions from the
keyboard.

1989-08-28 Chris Hanson <[email protected]>

* compiler/base/utils.scm[4.13],
compiler/machines/bobcat/assmd.scm[1.36],
compiler/machines/bobcat/compiler.sf[1.11],
compiler/machines/bobcat/decls.scm[4.23],
compiler/machines/bobcat/instr1.scm[1.67],
compiler/machines/bobcat/instr2.scm[1.17],
compiler/machines/bobcat/insutl.scm[1.7],
compiler/machines/bobcat/lapgen.scm[4.21],
compiler/machines/bobcat/machin.scm[4.16],
compiler/machines/bobcat/make.scm-68040[4.50],
compiler/machines/bobcat/rules1.scm[4.25],
compiler/machines/bobcat/rules2.scm[4.9],
compiler/machines/bobcat/rules3.scm[4.17],
compiler/machines/bobcat/rules4.scm[4.6]:
* Add Jinx's changes to support 6 bit type codes.

* microcode/Attic/config.h[9.46], microcode/bchmmg.c[9.47],
microcode/bignum.c[9.27], microcode/char.c[9.27],
microcode/const.h[9.34], microcode/edwin.h[1.3],
microcode/extern.h[9.32], microcode/gctype.c[9.30],
microcode/intern.c[9.50], microcode/list.c[9.27],
microcode/lookup.h[9.43], microcode/m/Attic/hp9k300.h[1.5],
microcode/memmag.c[9.39], microcode/object.h[9.31],
microcode/ppband.c[9.34], microcode/prim.c[9.32],
microcode/prims.h[9.35], microcode/psbmap.h[9.28],
microcode/psbtobin.c[9.35], microcode/syntax.c[1.19],
microcode/syntax.h[1.6], microcode/trap.h[9.41],
microcode/types.h[9.30], microcode/utils.c[9.43],
microcode/version.h[10.88], microcode/wsize.c[9.27]:
* Add Jinx's changes to support 6 bit type codes. Make these the
default for HP 9000 series 300.

* Update Ppband to handle compiled code.

* Significant rewrite of parts of the bignum code. This is the
beginning of a redesign of this code.

* Regularize some of the object selector macros.

1989-08-22 Chris Hanson <[email protected]>

* microcode/sample.c[9.23]:
*** empty log message ***

1989-08-21 Chris Hanson <[email protected]>

* compiler/back/lapgn1.scm[4.7], compiler/base/crsend.scm[1.2],
compiler/base/crstop.scm[1.4], compiler/base/debug.scm[4.10],
compiler/base/infnew.scm[4.5], compiler/base/switch.scm[4.11],
compiler/base/toplev.scm[4.19], compiler/fggen/canon.scm[1.6],
compiler/fggen/fggen.scm[4.19], compiler/fgopt/simapp.scm[4.5],
compiler/machines/bobcat/compiler.pkg[1.24],
compiler/machines/bobcat/compiler.sf[1.10],
compiler/machines/bobcat/dassm1.scm[4.13],
compiler/machines/bobcat/make.scm-68040[4.49],
compiler/machines/bobcat/rules3.scm[4.16],
compiler/rtlbase/rtline.scm[4.9], compiler/rtlbase/rtlobj.scm[4.7],
compiler/rtlgen/rtlgen.scm[4.20]:
Change the compiler so that each top-level procedure in the input
expression is compiled separately, producing a different compiled-code
block for each. The load-time linking is removed from the sub-blocks
to be performed in the code for the top-level expression, thus
allowing it to be discarded after the expression is evaluated; only
the code needed by the procedures is retained.

The old behavior of the compiler can be obtained by setting the switch
`compiler:compile-by-procedures?' to #f.

1989-08-18 Chris Hanson <[email protected]>

* runtime/make.scm[14.18], runtime/version.scm[14.56]:
Change the cold-load to do purification differently -- this is needed
to guarantee that as much as possible gets purified, without purifying
storage that is temporary for the cold-load. This is done by leaving
everything in the heap until the cold-load is essentially finished,
then purifying everything at once.

* runtime/load.scm[14.10]:
Abstract out the operation that decides how to purify compiled code,
call it `load/purification'. This is used by the cold-loader.

* runtime/infutl.scm[1.12]:
(fasload/update-debugging-info): Change this so that it makes a single
copy of the new filename which is shared among all of the
compiled-code blocks in the file. For per-top-level-procedure
compilation, this makes a big difference.

1989-08-17 Chris Hanson <[email protected]>

* runtime/infutl.scm[1.11]:
Make `load-debugging-info-on-demand?' affect only
`compiled-procedure/name'.

* runtime/load.scm[14.9]:
Fix classic bug: incorrect interaction between stream and side-effect.

* sf/butils.scm[4.3], sf/butils.scm[4.2]:
(sf-conditionally): Don't echo "up to date" message unless
specifically requested to.

* runtime/infutl.scm[1.10], runtime/load.scm[14.8],
runtime/runtime.pkg[14.50], runtime/scode.scm[14.6],
runtime/version.scm[14.55]:
* Compiler now knows how to emit a different form of
`dbg-info-vector', which contains not only the compiled-code blocks
(as before), but also a pointer which is the root to be used if the
code is to be purified. The runtime system needed to be changed to
accomodate this.

* Change default for `load-debugging-info-on-demand?' back to false.

* Fix `scode-constant?' to handle compiled-code-entry objects
correctly.

* runtime/global.scm[14.14]:
Change "FASDumping" message to "Dumping", to match change to
"FASLoading" message.

* runtime/make.scm[14.17]:
Must replicate export from `(package)' here.

* runtime/list.scm[14.8]:
Recode procedures that use `caar', `cadr', etc. to use sequences of
`car' and `cdr'. This produces more efficient code since `sf' won't
inline-code these procedures in this file because they are defined
here.

1989-08-16 Chris Hanson <[email protected]>

* runtime/unsyn.scm[14.6]:
Optionally allow comments to appear with bogus syntax.

* runtime/parse.scm[14.8]:
For #@<n> -- if the object referred to is SCode, quote it so that
evaluating the result of the parse produces the object.

1989-08-15 Chris Hanson <[email protected]>

* runtime/defstr.scm[14.12]:
Fix stupid typo.

* runtime/contin.scm[14.4], runtime/gc.scm[14.4],
runtime/gcdemn.scm[14.3], runtime/gcnote.scm[14.5],
runtime/global.scm[14.13], runtime/infutl.scm[1.9],
runtime/load.scm[14.7], runtime/pp.scm[14.8], runtime/rep.scm[14.12],
runtime/runtime.pkg[14.49], runtime/savres.scm[14.10],
runtime/stream.scm[14.4], runtime/udata.scm[14.11],
runtime/uenvir.scm[14.12], runtime/unsyn.scm[14.5],
runtime/version.scm[14.54]:
* Implement `entity' data abstraction to manipulate the microcode's
data type of that name. Change everything to use it.

* Implement new procedure `gc-clean' that interleaves `gc-flip' and
`trigger-secondary-gc-daemons!' until everything is reclaimed. Change
`disk-save' to use it. Cause this operation to be invoked when
running out of memory.

* Add secondary GC daemons to clean up debugging info, and to reset
`prime-number-stream'.

* Extend the procedures `procedure-lambda' and `procedure-environment'
to handle compiled procedures by using debugging information if it is
available.

* Extend all the procedure operations to handle entities.

* Change `pp', `pa', and `->environment' to accept any procedure as an
argument; previously these only accepted compound procedures.

* Change the unsyntaxer to handle compiled expressions by using their
debugging source code if it is available.

* Change name of `*compiler-info/load-on-demand?*' to
`load-debugging-info-on-demand?', and make it be #T by default.

* Change `load' to print "loading..." message for source files as well
as binary files. These messages are controlled by
`load/suppress-loading-message?'.

* Change `environment-bound-names' to ignore the binding which is used
to hold an environment's package.

* Fix bug in `make-null-interpreter-environment' which prevented it
from being called more than once.

* compiler/base/scode.scm[4.7], compiler/fggen/canon.scm[1.5],
compiler/fggen/fggen.scm[4.18],
compiler/machines/bobcat/make.scm-68040[4.48]:
Canonicalization of expressions causes certain expressions to be
rewritten in a form that is unsuitable for use as the debugging source
code. Change the canonicalization code to save the original code.
Change the fg-generator to use the original code as the debugging
source instead of the code that it is compiling.

* runtime/xeval.scm[1.2]:
Special case: don't bother generating a new environment when
evaluating a constant.

* microcode/bchmmg.c[9.46]:
Bug report from Jinx: `prealloc' may change the file pointer, so the
hp-ux code that uses it must check.

1989-08-14 Chris Hanson <[email protected]>

* edwin/make.scm[3.17]:
*** empty log message ***

* edwin/bufwin.scm[1.283], edwin/edwin.pkg[1.14],
edwin/modwin.scm[1.32], edwin/wincom.scm[1.96]:
Move some of the window-control variables to the files in which they
are used. Rename `cursor-centering-threshold' to `scroll-step' for
compatibility with Emacs. Delete the disfunctional command
`toggle-screen-video'.

* edwin/prompt.scm[1.136]:
Suppress redisplay of minibuffer messages during keyboard-macro
execution.

* edwin/edwin.pkg[1.13]:
Export variable `completion-auto-help' to (edwin) package.

* edwin/hlpcom.scm[1.92]:
Sort list of key bindings before printing it.

* edwin/bufwfs.scm[1.7], edwin/bufwin.scm[1.282],
edwin/bufwiu.scm[1.12], edwin/bufwmc.scm[1.7], edwin/calias.scm[1.8],
edwin/comtab.scm[1.57], edwin/decls.scm[1.9], edwin/edwin.pkg[1.12],
edwin/grpops.scm[1.7], edwin/hlpcom.scm[1.91],
edwin/image.scm[1.125], edwin/keymap.scm[1.8], edwin/loadef.scm[1.6],
edwin/modefs.scm[1.122], edwin/motion.scm[1.81],
edwin/struct.scm[1.71], edwin/utils.scm[1.19],
edwin/utlwin.scm[1.54], edwin/window.scm[1.150],
runtime/rgxcmp.scm[1.102]:
* Rewrite core group operations, image operations, window operations,
and the regular-expression compiler to use fixnum arithmetic. This
has a pronounced performance effect.

* Change "decls" to pass integrable-procedure definitions between a
few crucial files.

* New variable `enable-emacs-key-names' controls whether keys are
displayed using Emacs-style names or Scheme-style names. The default
is Emacs-style.

* C-h C-b now runs `describe-bindings' as in Emacs.

* edwin/autold.scm[1.47]:
Change file-loading prompts to use trailing dots.

1989-08-13 Chris Hanson <[email protected]>

* compiler/machines/bobcat/rules1.scm[4.24]:
When subtracting register A from register B, where register B is not
dead, must always allocate a new alias. Stupid trick that was being
pulled involving `exg' instruction could never have worked.

1989-08-12 Chris Hanson <[email protected]>

* edwin/autold.scm[1.46], edwin/basic.scm[1.104],
edwin/buffer.scm[1.136], edwin/comred.scm[1.81],
edwin/curren.scm[1.86], edwin/decls.scm[1.8],
edwin/editor.scm[1.192], edwin/edtstr.scm[1.7], edwin/edwin.ldr[1.7],
edwin/edwin.pkg[1.11], edwin/evlcom.scm[1.17],
edwin/filcom.scm[1.139], edwin/hlpcom.scm[1.90],
edwin/input.scm[1.81], edwin/make.scm[3.16], edwin/modefs.scm[1.121],
edwin/rename.scm[1.3], edwin/unix.scm[1.10], edwin/utils.scm[1.18],
edwin/xcom.scm[1.3], edwin/xterm.scm[1.8]:
* Change internal names of various user procedures to correspond to
the external names:

edwin edit
edwin-discard-state! reset-editor
edwin-reset create-editor
edwin-reset-args create-editor-args
edwin-set-display! set-editor-display-type!

The external interface to Edwin now consists of the following
procedures:

(EDIT)
(RESET-EDITOR)
(RESET-EDITOR-WINDOWS)
As before.

(EDITOR-DISPLAY-TYPE)
Returns the display-type of the current editor. This is
either a symbol or #F.

(EDITOR-DISPLAY-TYPES)
Returns the names of all the known display types, in a list.

(CREATE-EDITOR DISPLAY-TYPE . ARGS)
Initializes a display of the given type, passing the args to
the screen-construction code.

CREATE-EDITOR-ARGS
This variable is a list of arguments to be passed to
`create-editor' if it is necessary for `edit' to call it.

* Add new command `define-command', which is solely a placeholder for
the documentation string it possesses.

* Implement editor variable `inhibit-startup-message' -- see the
documentation string.

* `enable-transcript-buffer' is now #F by default -- it is normally
enabled in Scheme-Interaction mode only.

* Change the definitions of the commands `set-environment' and
`set-syntax-table' to set the editor variables `scheme-environment'
and `scheme-syntax-table'. The old behavior of these commands is
available via the new commands `set-repl-environment' and
`set-repl-syntax-table'. Other new commands are
`set-default-environment' and `set-default-syntax-table'.

* Change definition of `scheme-syntax-table', allowing it to be a
symbol which is regarded as a variable to be evaluated relative to the
evaluation environment.

* Add init files, which are found in "~/.edwin". The new global
variable `inhibit-editor-init-file?' (defined in the system global
environment), prevents your init file from being loaded if it is true.

* Add new "find-file initialization" hack: this is invoked whenever
`find-file' or `revert-buffer' is done. The reason for this hack is
to allow a database file to contain evaluation environment and
syntax-table information for the editor.

When a `find-file' (or `revert-buffer') is done, the editor looks in
the directory of the file for one of two files:

1. If the file's name is "foo.scm", the editor looks for a
file "foo.ffi" (-only- if the type is ".scm"). Otherwise,

2. The editor looks for the file ".edwin-ffi".

If one of these files are found, it is loaded into the editor (if the
first file is found, the second is ignored). The loading is performed
in the (edwin) package with `edwin-syntax-table'. The result of
loading the file must be a Scheme procedure which accepts no
arguments; this procedure will be added to the buffer's
initializations, to be performed the next time the buffer is selected.

The procedure `standard-scheme-find-file-initialization' is useful in
this regard.

It should be straightforward to automatically generate these files
from the package-modeller.

* The binding for `describe-command' has been changed from `C-h d' to
`C-h f' for compatibility with Emacs.

* Under some circumstances, files in the user's home directory tree
will be displayed using the "~/" notation.

* Implement overlooked command `x-set-position'.

----------------------------------------------------------------------

* Change definition of `load-edwin-file' procedure to make it more
generally useful for loading files into the editor. Similar changes
to the `load-file' and `load-library' commands.

* Bullet-proof the evaluation environment and syntax-table code so
that they signal an editor-error if unable to be resolved to the
appropriate kind of object.

----------------------------------------------------------------------

* Cause a modeline-event to occur whenever a buffer's clipping is
changed.

* Change handling of `edwin-initialization' so that the code is run
inside the command-reader loop -- thus making sure that all of the
editor's dynamic-state is bound.

* Fix bug in command-reader: undo boundaries were not being marked
when they should have been.

* Change `kill-buffer' to pick a different replacement buffer for each
of its windows, if possible.

* runtime/vector.scm[14.5]:
* Change `environment-link-name' to call `->environment' on its two
environment arguments.

* Move `vector-binary-search' to the global environment. Fix a bug in
it -- a confusion between the < used for comparing integers, and that
for comparing keys.

* New variable `load/suppress-loading-message?' prevents the file
loader from printing the "loading -- done" messages.

* Implement `pathname-relative?' which accepts two pathnames; if the
second has a directory part which is a "prefix" of the first, this
returns a copy of the first pathname with the "prefix" removed.
Example:

(pathname-relative? (->pathname "/usr/bin")
(->pathname "/usr/"))
==> #[pathname 5 "bin"]

* runtime/global.scm[14.12], runtime/infutl.scm[1.8],
runtime/load.scm[14.6], runtime/pathnm.scm[14.6],
runtime/runtime.pkg[14.48], runtime/version.scm[14.53]:
* Change `environment-link-name' to call `->environment' on its two
environment arguments.

* Move `vector-binary-search' to the global environment. Fix a bug in
it -- a confusion between the < used for comparing integers, and that
for comparing keys.

* New variable `load/suppress-loading-message?' prevents the file
loader from printing the "loading -- done" messages.

* Implement `pathname-relative?' which accepts two pathnames; if the
second has a directory part which is a "prefix" of the first, this
returns a copy of the first pathname with the "prefix" removed.
Example:

(pathname-relative? (->pathname "/usr/bin")
(->pathname "/usr/"))
==> #[pathname 5 "bin"]

* sf/gconst.scm[4.3]:
environment-link-name is no longer a primitive.

1989-08-11 Chris Hanson <[email protected]>

* edwin/comred.scm[1.80], edwin/editor.scm[1.191]:
Cause `edwin-initialization' to be executed inside the command loop so
that all of the editor's dynamic-state is bound.

* edwin/buffer.scm[1.135], edwin/buffrm.scm[1.34],
edwin/bufmnu.scm[1.111], edwin/bufwfs.scm[1.6],
edwin/bufwin.scm[1.281], edwin/bufwiu.scm[1.11],
edwin/comman.scm[1.62], edwin/comtab.scm[1.56],
edwin/debuge.scm[1.38], edwin/editor.scm[1.190],
edwin/edtfrm.scm[1.79], edwin/edtstr.scm[1.6], edwin/edwin.pkg[1.10],
edwin/macros.scm[1.49], edwin/make.scm[3.15], edwin/struct.scm[1.70],
edwin/wincom.scm[1.95], edwin/xcom.scm[1.2]:
* Arrange for local bindings of current buffer to be undone when
leaving the editor; this prevents the local bindings from becoming
global when (reset-editor) is done. Perhaps it might be useful to
remember the original global binding, and reset each variable to that?

* Change the commands `list-buffers' and `buffer-menu' to accept a
prefix arg which limits their listings to buffers that are visiting
files. Perhaps buffer-menu mode should define the g key as Dired
does?

* Change mouse button events to invoke commands in the normal way,
binding a `current-button-event' to tell the commands where the mouse
was when they occurred; this event defaults to the location of point
so that these commands make sense when invoked by other means. Cause
the editor to beep and do nothing if a mouse button is not bound to
any command, and if the button is located in the "decoration" of some
editor window (i.e. the modeline or vertical border).

* Change `define-key' to accept command-names (or commands) as
arguments when defining mouse buttons. Change `define-key',
`define-prefix-key', and `define-default-key' to accept mode objects
as well as mode-names.

* Add new commands:
debug-clean-marks
debug-show-standard-marks

* Change the buffer redisplay code so that buffer-cursor-y is set only
when a buffer is disconnected from a window. Further, save point's
index with the coordinate, and ignore the information if point changes
before the information is used.

* Implement new operation `mark-temporary!', which removes a permanent
mark from the marks list. Use this operation to get rid of the marks
used by buffer-windows when they are no longer in use. In order for
this to work, change the buffer-window code so that it never passes
one of these marks to anyone. The only user-visible change is to
replace the operations `window-start-mark' and `window-end-mark' with
`window-start-index' and `window-end-index'.

* Add new procedure `clean-group-marks!' to delete GC'ed marks from
the marks list.

* edwin/modwin.scm[1.31]:
Undo recent change which tried to replicate Emacs' algorithm for
deciding when to use inverse-video in the modeline. The attempt
failed, and I don't see an obvious way to make it work.

* edwin/modlin.scm[1.2]:
Use new procedure `integer-round' when computing the buffer position
percentage for the modeline.

* edwin/basic.scm[1.103], edwin/comred.scm[1.79],
edwin/filcom.scm[1.138], edwin/info.scm[1.94],
edwin/strtab.scm[1.42], edwin/utils.scm[1.17]:
Formatting.

* runtime/gc.scm[14.3], runtime/make.scm[14.16],
runtime/packag.scm[14.9], runtime/runtime.pkg[14.47],
runtime/version.scm[14.52]:
Implement `(flush-purification-queue!)', which tries to purify
anything that is in the purification queue. When this procedure
returns, the queue should be empty. Call this procedure after the
cold load, and after the "system-loader", to guarantee that the items
loaded are purified before being used.

* compiler/machines/bobcat/make.scm-68040[4.47]:
*** empty log message ***

* compiler/machines/bobcat/dassm1.scm[4.12]:
(disassembler/write-compiled-code-block): don't require debugging info.
The disassembler can run without it.

1989-08-10 Chris Hanson <[email protected]>

* runtime/defstr.scm[14.11]:
Fix bug in previous changes.

* compiler/fggen/fggen.scm[4.17]:
Fix longstanding bug in compilation of predicates. Expressions like
this

(if (if (bar numerator)
(foo denominator)
(not (foo denominator)))
numerator
denominator)

would compile incorrectly by making both calls to `foo' have the same
continuation. This should have been noticed as an error because the
continuation entry hooks for that continuation were attached to both
expressions: when they were combined with the call to `bar' the hooks
were used to attach the continuation to the enclosing expression --
but each side of the test was attached twice. Error checking in the
node-attachment code would have caught this one at compile time.

The new code generates a new continuation for the call to `foo' whose
result is inverted, and then codes the `not' using a PCFG and two
constants -- all of which gets folded out later, resulting in the
desired code.

* compiler/base/blocks.scm[4.11], compiler/base/ctypes.scm[4.13],
compiler/base/enumer.scm[4.3], compiler/base/lvalue.scm[4.15],
compiler/base/object.scm[4.7], compiler/base/proced.scm[4.14],
compiler/base/rvalue.scm[4.6], compiler/base/subprb.scm[4.7],
compiler/rtlbase/rtlobj.scm[4.6], compiler/rtlopt/rcseht.scm[4.8],
compiler/rtlopt/rcserq.scm[4.5]:
Change unparsers so that type names are printed in the standard case
for symbols.

* runtime/runtime.pkg[14.46], runtime/version.scm[14.51]:
Add new operations to do integer division followed by a rounding
operation. They are like a combination of / and the respective
rounding operation, except that there are no non-integer intermediate
results.

* edwin/window.scm[1.149]:
(inferior-containing-coordinates): the maximum addressable coordinate
of a window is one less than the size of the window.

* edwin/buffer.scm[1.134], edwin/comman.scm[1.61],
edwin/modes.scm[1.25]:
Change unparser methods for buffers, commands, variables, and modes to
show the object's name.

1989-08-09 Chris Hanson <[email protected]>

* edwin/buffer.scm[1.133], runtime/defstr.scm[14.10]:
Fix typo in previous change.

* edwin/artdebug.scm[1.2], edwin/autold.scm[1.45],
edwin/bufcom.scm[1.83], edwin/buffer.scm[1.132],
edwin/bufout.scm[1.3], edwin/comman.scm[1.60],
edwin/comred.scm[1.78], edwin/curren.scm[1.85], edwin/decls.scm[1.7],
edwin/edwin.ldr[1.6], edwin/edwin.pkg[1.9], edwin/evlcom.scm[1.16],
edwin/image.scm[1.124], edwin/info.scm[1.93], edwin/intmod.scm[1.36],
edwin/iserch.scm[1.7], edwin/make.scm[3.14], edwin/modefs.scm[1.120],
edwin/modes.scm[1.24], edwin/modwin.scm[1.30],
edwin/prompt.scm[1.135], edwin/schmod.scm[1.13], edwin/unix.scm[1.9],
edwin/utils.scm[1.16], edwin/winout.scm[1.4]:
* Major overhaul of evaluation commands. Now the transcript buffer is
used more uniformly, and by default it is turned on. The name and
mode of the transcript buffer can be set by variables, which are
initially set to use "*scratch*" in scheme-interaction mode.
Appropriate hooks have been added to allow scheme-interaction to share
virtually all of the evaluation and transcript code with the rest of
the evaluation commands. The end result of all of these changes is
that the evaluation commands work much more like the Emacs/Scheme
interface.

New command `select-transcript-buffer' is bound to C-c C-s.

* Implement `mode-line-format'; see that variable's documentation for
details. Change "Info" to use it. Also implement associated
variables:
global-mode-string
mode-line-buffer-identification
mode-line-modified
mode-line-procedure
mode-line-process

* Rewrite the image code to allow the starting index and column to be
specified. This will be used later when horizontal scrolling is
implemented. Change name of `make-image' to `string->image'.
Implement new operations:
(string-head->image string start start-column)
(string-representation string start-column)
(substring-representation string start end start-column)

* Change `prompt-for-expression' and `prompt-for-expression-value' so
that #F is a valid default value. The default value argument is now
optional, and the only way to have no default is to call the
procedures without that argument.

* Implement `fresh-line' operations for output-ports to marks and to
the current point. Add new procedures to support them:
(fresh-line #!optional port)
(fresh-lines n #!optional port)
(mark->output-port mark #!optional buffer)

* Change `prompt-for-yes-or-no?' to erase the input if it is neither
"yes" or "no". This is now consistent with Emacs.

* Change command-history display to use new feature in runtime system
that unparses objects such that they can be read back in.

* Implement new procedures:
(scode-eval-with-history scode environment)
(string->temporary-buffer string name)
(current-buffer? buffer)
(->command object)
(->variable object)
(->mode object)

* edwin/bufwmc.scm[1.6]:
Fix editing error from last changes.

* runtime/boot.scm[14.3], runtime/runtime.pkg[14.45],
runtime/unpars.scm[14.13], runtime/version.scm[14.50]:
Implement new flag `*unparse-with-maximum-readability?*' which causes
the unparser to output `#@<n>' for things that would otherwise print
out as unreadable representations.

Fix some bugs in the `define-structure' constructor options.

* edwin/edwin.sf[1.5]:
*** empty log message ***

1989-08-09 Panayotis Skordos <[email protected]>

* microcode/sgraph_a.c[1.7]:
*** empty log message ***

1989-08-08 Chris Hanson <[email protected]>

* runtime/defstr.scm[14.9]:
Fix some inconsistencies in the constructor option interactions.

* edwin/utlwin.scm[1.53]:
Don't call `subscreen-clear!' if the rectangle has zero area.

* edwin/basic.scm[1.102], edwin/buffer.scm[1.131],
edwin/buffrm.scm[1.33], edwin/bufwin.scm[1.280],
edwin/bufwiu.scm[1.10], edwin/bufwmc.scm[1.5], edwin/calias.scm[1.7],
edwin/comman.scm[1.59], edwin/comred.scm[1.77],
edwin/curren.scm[1.84], edwin/editor.scm[1.189],
edwin/edtfrm.scm[1.78], edwin/edtstr.scm[1.5], edwin/edwin.pkg[1.8],
edwin/fill.scm[1.45], edwin/lincom.scm[1.104],
edwin/macros.scm[1.48], edwin/make.scm[3.13],
edwin/modefs.scm[1.119], edwin/sercom.scm[1.55],
edwin/utlwin.scm[1.52], edwin/wincom.scm[1.94]:
* Implement `save-buffers-kill-edwin' which kills Edwin and returns to
Scheme. This is bound to C-x c in fundamental mode.

* Change `unmap-alias-char' to leave the following characters
unchanged: tab, linefeed, page, return, altmode. This compensates for
the previous change to `ascii-controlified?'.

* Implement `editor-frame-windows' which returns all of the
buffer-frames which are inferiors of an editor-frame.

* Implement `all-screens', `all-editor-frames', and `all-windows',
which return lists of all of the respective objects.

* The procedure `(window-redraw! window redraw-type)' has been
changed. Now, it delays the actual work until update time, and
`redraw-type' can be one of:

value meaning
----- -------
'START preserve the start position of the window
'POINT preserve the point position of the window
'BUFFER-CURSOR-Y move point to last known position, or recenter
y move point to the y'th row
other center the point vertically in the window

* Implementation of `truncate-lines' functionality. The following
changes are in support of this:

* Implementation of editor variable "assignment daemons" which allow
some arbitrary code to be executed whenever a specific variable is
assigned.

* Significant overhaul of local-variable binding:

** Implementation of "per-buffer" variables; that is, variables which
become buffer-local whenever they are set. The new special form
`define-variable-per-buffer' supports this functionality. The
following variables are defined as "per-buffer":

fill-column
left-margin
tab-width
case-fold-search
truncate-lines

** Implementation of new operations to access the local and default
value of a variable:

(variable-local-value? buffer variable)
(variable-local-value buffer variable)
(set-variable-local-value! buffer variable value)
(variable-default-value variable)
(set-variable-default-value! variable value)

* runtime/uenvir.scm[14.11]:
Fix typo in `stack-ccenv/parent'.

* runtime/conpar.scm[14.8]:
*** empty log message ***

* compiler/rtlgen/rtlgen.scm[4.19]:
In `continuation/next-continuation-offset', check to see if
popping-limit corresponds to continuation that is always known. If
so, keep searching up the stack for another continuation.

1989-08-07 Chris Hanson <[email protected]>

* edwin/basic.scm[1.101], edwin/calias.scm[1.6],
edwin/comred.scm[1.76], edwin/decls.scm[1.6], edwin/dired.scm[1.104],
edwin/editor.scm[1.188], edwin/edwin.ldr[1.5], edwin/edwin.pkg[1.7],
edwin/evlcom.scm[1.15], edwin/filcom.scm[1.137],
edwin/input.scm[1.80], edwin/make.scm[3.12], edwin/modefs.scm[1.118],
edwin/schmod.scm[1.12], edwin/unix.scm[1.8]:
* Implemented new editor-based debugger, which uses the standard
debugger to generate its presentations (by means of new hooks in the
runtime system). The debugger can be invoked manually by the command
`browse-continuation', or automatically by setting one of the
following variables true:

debug-on-evaluation-error error during evaluation
debug-on-editor-error editor error (user error)
debug-on-internal-error editor bug

Normally `debug-on-evaluation-error' is true and the others are false.

* Controlification redone so that controlification of all ASCII
control characters is uniform. Previously characters such as newline
and page were handled specially. The net result of this is that
controlification of an ASCII control character has no effect.

* C-x C-c is now bound to a command which exits Scheme and returns to
the unix shell.

* All messages are cleared immediately after reading the first
character of a command key sequence. This is similar to the action of
GNU Emacs, and prevents non-temporary messages from sticking around
for a long time.

* Dired now handles symbolic links specially, showing the file linked
to in the usual way.

* Bug fix in `clear-message': this procedure now preserves the
command-prompt; previously it was clearing both the message and the
command-prompt.

* Bug fix in "cterm": the `move-cursor!' operation must move the
cursor immediately if an update is not in effect.

* Bug fix in `revert-buffer': can't assume that the buffer being
reverted is current.

* Bug fix: `with-output-to-string' had incorrect indentation method.

* Bug fix: typo in dired sorting routine.

* runtime/dbgcmd.scm[14.6], runtime/dbgutl.scm[14.8],
runtime/debug.scm[14.15], runtime/emacs.scm[14.3],
runtime/global.scm[14.11], runtime/make.scm[14.15],
runtime/packag.scm[14.8], runtime/pp.scm[14.7],
runtime/rep.scm[14.11], runtime/runtime.pkg[14.44],
runtime/system.scm[14.6], runtime/version.scm[14.49],
runtime/where.scm[14.7]:
* Major rewrite of `debug' and `where' to allow their code to be used
as a presentation mechanism for the editor. The basic new design has
these features:

** All commands now accept a state argument, which they manipulate,
allowing the entire debugger state to be passed around easily.

** All output from the commands is wrapped by the procedure
`presentation', which can be grabbed to control the presentation
characteristics. For example, the editor uses this hook to clear the
debugger buffer, change current-output-port to go to that buffer, and
then reset the modified flag after the presentation is complete.

** "Failure" conditions generated by the debugger are signalled
through the new procedure `debugger-failure', which can be grabbed.
The editor grabs this and binds it to `editor-failure'.

** Advisory messages generated by the debugger are signalled through
the new procedure `debugger-message', which can be grabbed. The
editor grabs this and binds it to `editor-message'.

* The contracts for `prompt-for-confirmation?' and
`prompt-for-expression' have been changed to make them compatible with
the editor's versions of these procedures.

* The package loader no longer offers the "load interpreted?" option.
This is controlled by a flag which can be set should this option be
desired. Similarly, the cold-loader no longer offers this option --
in that case you must move or delete the ".com" files to get an
interpreted cold-load.

* A new operation `pretty-print' is similar to `pp' except that it
doesn't print a prefix newline and it does nothing special about hash
numbers or named structures.

* microcode/pruxfs.c[9.35]:
`file-attributes' should use lstat instead of stat.

1989-08-06 Chris Hanson <[email protected]>

* cref/anfile.scm[1.3]:
Enable memoization -- it's a great time saver.

1989-08-04 Chris Hanson <[email protected]>

* edwin/basic.scm[1.100]:
Fix `suspend-scheme' command so that it properly exits the editor
before leaving Scheme.

* edwin/dired.scm[1.103], edwin/unix.scm[1.7]:
In Dired, sort files in standard unix fashion.
Change directory readers to use new primitive `directory-close' to
guarantee that the directory reader is cleaned up correctly.

* runtime/uerror.scm[14.9]:
Change error message from "Bound variable" to "Illegal to rebind
variable".

* runtime/unsyn.scm[14.4]:
Teach unsyntaxer to recognize named LET and unsyntax it as such.

* runtime/unxdir.scm[14.4]:
Use new primitive `directory-close' to guarantee that the
directory-reader is correctly cleaned up when aborted.

* microcode/version.h[10.87]:
Add new primitive `directory-close'.

1989-08-03 Chris Hanson <[email protected]>

* compiler/machines/bobcat/compiler.sf[1.9], edwin/edwin.sf[1.4],
sf/sf.sf[4.4]:
Don't generate ".cref" file by default.

* edwin/autold.scm[1.44], edwin/hlpcom.scm[1.89], edwin/info.scm[1.92],
edwin/loadef.scm[1.5], edwin/paths.scm[1.4]:
Change library pathnames to be relative to
`(system-library-directory-pathname)' so that they will dynamically
changed depending on the microcode's defaults.

* cref/cref.sf[1.2]:
Don't generate "cref.cref" by default.

* cref/toplev.scm[1.3]:
`cref/generate-constructors' should write the ".glob" file also.

* cref/anfile.scm[1.2], cref/make.scm[1.5]:
Don't generate ".free" files by default.

* runtime/runtime.sf[14.3]:
Don't generate "runtim.cref" by default.

* runtime/version.scm[14.48]:
Extend debugger to allow arbitrary evaluation in compiled code
environments. This is done by the trick of rewriting SCode, replacing
references to compiled-code variables with combinations that do the
reference.

Fix bug in compiled-code frame parser.

Change `print-gc-statistics' to show info about constant and heap
space in use.

New operation `system-library-directory-pathname' provides standard
way to find run-time library files.

* runtime/runtime.pkg[14.43]:
Add new operations:

environment-assign!
environment-assignable?
make-null-interpreter-environment
extended-scode-eval
system-library-directory-pathname

* runtime/make.scm[14.14]:
Add initialization for new operation `extended-scode-eval'.

* runtime/udata.scm[14.10]:
Add new operation to clobber compiled-closure frames.

* runtime/option.scm[14.5], runtime/pathnm.scm[14.5]:
Add new operation `system-library-directory-pathname' which
standardizes where to find various run-time library files.

* runtime/gcnote.scm[14.4]:
Change `print-gc-statistics' to show the current amount of constant
and heap in use.

* runtime/dbgcmd.scm[14.5], runtime/debug.scm[14.14],
runtime/global.scm[14.10], runtime/rep.scm[14.10],
runtime/where.scm[14.6]:
Allow compiled-code environments to be used in evaluation and REP
loops.

* runtime/uenvir.scm[14.10]:
Add new operations `environment-assignable?' and `environment-assign!'
which allow individual variables in an environment to be assigned.

* microcode/m/Attic/hp9k800.h[1.3]:
Add default Starbase device driver.

* microcode/s/Attic/ultrix.h[1.4]:
Add defininition required to fix Ultrix X11 library bug.

* microcode/unxutl/Attic/ymkfile[1.8]:
Rearrange the definitions comprising X_LIB so that they can be used to
fix the Ultrix -lX11 bug.

* edwin/edwin.pkg[1.6]:
Export `message-args->string' to (edwin) package.

* edwin/info.scm[1.91], edwin/make.scm[3.11]:
Extensive changes to permit use of indirect Info files.

* edwin/basic.scm[1.99]:
Implement variable `debug-on-editor-error' which causes editor errors
to be signalled as Scheme errors for debugging.

* edwin/loadef.scm[1.4]:
Move definitions of `info-tags-table-{start,end}' to "info.scm".

* edwin/comred.scm[1.75]:
For "s" interactive command letter, allow null string to be returned.

1989-08-02 Chris Hanson <[email protected]>

* microcode/Attic/config.h[9.45]:
Adjust "umax" processor entry.

* microcode/unxutl/Attic/cf-dist.h[1.5]:
Add NS32K processor type.

* microcode/unxutl/Attic/config[1.4]:
Add Encore Multimax.

* edwin/paths.scm[1.3]:
Adjust paths to be consistent with rest of release.

* compiler/machines/vax/make.scm[4.45]:
Initialize disassembler macros.

* microcode/s/Attic/bsd4-2.h[1.3]:
Add definition of `ALTERNATE_M4'.

* microcode/s/Attic/ultrix.m4[1.2]:
CSH doesn't need to have $ doubled when it is wrapped in single
quotes.

1989-08-01 Chris Hanson <[email protected]>

* compiler/machines/vax/lapgen.scm[4.8]:
Bug: code to extract ASCII from a char object was assuming that the
machine was big-endian, rather than little-endian, and thus extracted
the type code rather than the ASCII code.

1989-07-30 Panayotis Skordos <[email protected]>

* microcode/array.c[9.38]:
*** empty log message ***

1989-07-27 Chris Hanson <[email protected]>

* microcode/m/Attic/hp9k300.h[1.4], microcode/s/Attic/ultrix.h[1.3],
microcode/unxutl/Attic/makefile[1.4],
microcode/unxutl/Attic/ymkfile[1.7]:
Eliminate dependencies based on the version of cpp used to process
this file. Don't define rules in macros -- use shell scripts and
override the program names instead.

* microcode/unxutl/Attic/ymkfile[1.6]:
For now, don't try to use -lddsox11.

* microcode/unxutl/Attic/ymkfile[1.5]:
Don't doubly define -g.

* microcode/m/Attic/hp9k300.h[1.3]:
Allow definition of STARBASE_DEVICE_DRIVERS to be overridden.

1989-07-26 Chris Hanson <[email protected]>

* microcode/m/Attic/hp9k300.h[1.2], microcode/m/Attic/hp9k800.h[1.2],
microcode/s/Attic/hpux.h[1.3]:
Move -ltermcap definition to hpux system file.

* microcode/unxutl/Attic/ymkfile[1.4]:
Include C_DEBUG_SWITCH in CFLAGS.

* microcode/unxutl/Attic/config[1.3]:
Add "mips-ultrix" configuration type.

* microcode/m/Attic/mips.h[1.2], microcode/s/Attic/hpux.h[1.2]:
Rename LIBS_DEBUG to LIB_DEBUG.

* microcode/unxutl/Attic/cf-dist.h[1.4]:
Add new options SUPPRESS_C_OPTIMIZER and SUPPRESS_C_DEBUGGING to
control the -O and -g flags to the compiler, and the associated -lg
flag to the linker.

* microcode/unxutl/Attic/ymkfile[1.3]:
Rename LIBS_DEBUG to LIB_DEBUG. Add new options SUPPRESS_C_OPTIMIZER
and SUPPRESS_C_DEBUGGING to control the -O and -g flags to the
compiler, and the associated -lg flag to the linker.

* microcode/unxutl/Attic/makefile[1.3]:
Don't delete "*.s" in "clean" as this is a loser on Sun3.

* microcode/x11.h[1.3], microcode/x11base.c[1.6]:
Change (void *) pointer to (char *) since the former isn't supported
on all compilers yet.

* microcode/unxutl/Attic/makefile[1.2]:
Add make target for Breakup.

* microcode/unxutl/Attic/cf-dist.h[1.3]:
Add PROC_TYPE_MIPS.

* microcode/m/Attic/vax.h[1.2]:
Move M4 rule from "m/vax.h" to "s/ultrix.h".
Remove conditionalized definition of LIBS_MACHINE.

* microcode/s/Attic/ultrix.h[1.2]:
Move M4 rule from "m/vax.h" to "s/ultrix.h".

1989-07-25 Arthur Gleckler <[email protected]>

* compiler/back/lapgn2.scm[1.10], compiler/back/regmap.scm[4.8],
compiler/base/macros.scm[4.7.1.2],
compiler/machines/bobcat/compiler.pkg[1.23],
compiler/machines/bobcat/compiler.sf[1.8],
compiler/machines/bobcat/dassm2.scm[4.13],
compiler/machines/bobcat/dassm3.scm[4.7],
compiler/machines/bobcat/decls.scm[4.22],
compiler/machines/bobcat/lapgen.scm[4.20],
compiler/machines/bobcat/machin.scm[4.15],
compiler/machines/bobcat/make.scm-68040[4.46],
compiler/machines/bobcat/rules1.scm[4.23],
compiler/machines/bobcat/rules2.scm[4.8],
compiler/rtlbase/rgraph.scm[4.5], compiler/rtlbase/rtlcon.scm[4.17],
compiler/rtlbase/rtlexp.scm[4.12], compiler/rtlbase/rtlty1.scm[4.14],
compiler/rtlgen/opncod.scm[4.30], compiler/rtlopt/rcse1.scm[4.18]:
Open-coding of floating-point arithmetic.

* compiler/rtlopt/rinvex.scm[1.2]:
Open-coding of floating-point arithmetic. Extend invertible expression
elimination to detect invertible expression pairs of the form
(a (b (c x))) ==> x
where a and b together cancel c, or b and c together cancel a.

1989-07-25 Chris Hanson <[email protected]>

* microcode/bintopsb.c[9.39], microcode/fasload.c[9.42]:
Alignment fixes.

1989-07-24 Chris Hanson <[email protected]>

* microcode/unxutl/Attic/config[1.2]:
Move the sun-specific files to subdirectories.

* microcode/unxutl/Attic/cf-dist.h[1.2]:
Define `C_SWITCH_FEATURES' here, and add comment regarding some
interesting values.

* microcode/unxutl/Attic/ymkfile[1.2]:
Make `C_SWITCH_FEATURES' have some effect.

* microcode/s/Attic/bsd4-2.h[1.2]:
On SunOS at least, can't do M4_RULE macro.

* compiler/back/lapgn3.scm[4.4]:
Don't use `intern' for constant labels.

1989-07-20 Chris Hanson <[email protected]>

* cref/forpkg.scm[1.4]:
Eliminate "unreferenced bound variable" warning.

1989-07-18 Chris Hanson <[email protected]>

* compiler/fgopt/simple.scm[4.5]:
Bug: `walk/node' was being called with an incorrect number of
arguments.

* runtime/version.scm[14.47]:
*** empty log message ***

1989-07-14 Chris Hanson <[email protected]>

* microcode/x11base.c[1.5]:
Spectrum compiler won't allow casts on lvalues.

1989-07-13 Chris Hanson <[email protected]>

* runtime/debug.scm[14.13], runtime/framex.scm[14.9],
runtime/runtime.pkg[14.42]:
Fix bug: can't assume that argument to `debugging-info/noise' is a
pair.

1989-07-12 Chris Hanson <[email protected]>

* compiler/fgopt/desenv.scm[4.3],
compiler/machines/bobcat/compiler.sf[1.7.1.1]:
*** empty log message ***

1989-07-11 Chris Hanson <[email protected]>

* compiler/machines/vax/compiler.cbf[1.3],
compiler/machines/vax/compiler.pkg[1.5],
compiler/machines/vax/compiler.sf[1.2]:
*** empty log message ***

1989-07-05 Chris Hanson <[email protected]>

* microcode/intrpt.h[1.6]:
Fix incorrectly written call to `critical_section_hook'.

* microcode/x11base.c[1.4]:
Eliminate random use of & on character array.

* microcode/intern.c[9.49]:
Add \n\ as appropriate to documentation strings of primitives.

* microcode/bitstr.c[9.39]:
Missing assigment in bit-substring-find-next-set-bit.

* microcode/gc.h[9.28]:
Can't use #error because not all cpp's support it.

1989-07-02 Chris Hanson <[email protected]>

* microcode/bintopsb.c[9.38]:
Two problems with print_a_char: was not checking character
to see if it was in domain of character type predicates, and extended
character representation didn't match what Psbtobin is looking for --
used hex instead of decimal.

1989-07-01 Chris Hanson <[email protected]>

* microcode/version.h[10.86]:
Prepare for beta test 7.0.0

* microcode/x11term.c[1.5]:
Merge from branch 1.4.1.3

1989-06-27 Chris Hanson <[email protected]>

* runtime/graphics.scm[1.2]:
Fix bug in sense of graphics buffering. Previously it worked
correctly by default, but the enable/disable operations had the wrong
sense. Also, flush the buffer when it is disabled.

* runtime/x11graph.scm[1.3]:
Implement `get-default' operation on X graphics windows, and allow a
string to be used as a display argument when opening a window.

* microcode/x11base.c[1.3], microcode/x11graph.c[1.3],
microcode/x11term.c[1.4.1.3]:
Change resource handling to use property names similar to those used
by GNU Emacs.

* microcode/x11.h[1.2]:
Export procedure `x_get_default'.

1989-06-23 Chris Hanson <[email protected]>

* runtime/x11graph.scm[1.2]:
Conditionalize running of x-close-all-displays on its being
implemented.

* microcode/x11base.c[1.2]:
Change X resource names to conform to (what appear to be) standards.

1989-06-23 ojn <[email protected]>

* runtime/runtime.pkg[14.41]:
Export the x-graphics operations to the global package. Shouldn't
have deleted them in the first place.

1989-06-23 Panayotis Skordos <[email protected]>

* microcode/array.c[9.37]:
*** empty log message ***

1989-06-22 Chris Hanson <[email protected]>

* runtime/make.scm[14.13], runtime/option.scm[14.4],
runtime/runtime.pkg[14.40], runtime/version.scm[14.46]:
Installation of new graphics operations. This requires support
available as of microcode version 10.85. Documentation to follow
shortly.

* microcode/sgx.c[1.6]:
Change name of primitive to prevent conflict with new X11 stuff.

* microcode/version.h[10.85]:
*** empty log message ***

1989-06-22 Panayotis Skordos <[email protected]>

* microcode/array.c[9.36], microcode/array.h[9.30],
microcode/fft.c[9.26], microcode/image.c[9.28]:
New 6003 system under construction

1989-06-21 Chris Hanson <[email protected]>

* edwin/comtab.scm[1.55]:
`comtab-entry' was missing one place where it needed to special case
buttons.

* microcode/starbase.c[1.2], microcode/starbasx.c[1.2],
microcode/x11graph.c[1.2]:
Add \n\ to ends of documentation lines.

* edwin/make.scm[3.10], edwin/xterm.scm[1.7]:
Redesign for changes to microcode X11 interface. Add new commands (to
control color, size, etc.) of X windows. Add Markf's mouse-button
enhancements.

* edwin/edwin.pkg[1.5]:
Add new file "xcom". Add Markf's mouse-button enhancements.

* edwin/edwin.ldr[1.4]:
Add new file "xcom."

* edwin/window.scm[1.148]:
Rewrite `inferior-containing-coordinates' to be faster. Make optional
argument be required. Eliminate mixing of single- and multiple-value
returns, which doesn't work.

* edwin/edtfrm.scm[1.77]:
Change calling conventions for mouse-button commands. Limit the
coordinates to the buffer-frame's area, although probably the code
should be changed to ignore events that occur over the modelines.
Change the button-table initialization stuff so it isn't done at load
time. Eliminate a few things that weren't being used.

* edwin/decls.scm[1.5]:
Add new file "xcom".

* edwin/comtab.scm[1.54]:
Change comtabs to have a separate slot for mouse-button bindings.
These are treated differently because mouse-buttons aren't bound to
commands but instead to procedures with a certain calling protocol.

* microcode/x11term.c[1.4.1.2]:
Extensive redesign: abstraction of portions of this code that is also
needed to support X graphics windows. Inclusion of Markf's
mouse-handling code.

* edwin/comwin.scm[1.138], edwin/comwin.scm[1.137]:
*** empty log message ***

1989-06-20 Mark Friedman <[email protected]>

* edwin/comtab.scm[1.53]:
Command tables now associate on buttons as well as characters.

* edwin/comwin.scm[1.136]:
Added method :leaf-containing-coordinates in support of mouse buttons.

* edwin/decls.scm[1.4.1.1]:
Added x-mouse.scm in support of X mouse buttons.

* edwin/edtfrm.scm[1.76]:
Support for mouse buttons. The support is not complete, but it does
more or less work. See x-mouse.scm for soem examples.

There is no support for chording (with multiple buttons, or with
button and key combos), multiple clicking, or dragging.

There is also no buffering of button events beyond the buffering done
by X itself. I'm not sure how much of a problem this is.

There is a small timing problem on edwin startup, where you can't
use a mouse button until a key has been pressed. I think that the
solution to this involves including mouse events (at least the button
events) in the input port abstraction.

1989-06-19 Mark Friedman <[email protected]>

* edwin/edwin.ldr[1.3.1.1]:
I needed to move edtfrm around a little bit. It seems to work, but
the whole thing is a little fragile.

* edwin/edwin.pkg[1.4.1.1], edwin/macros.scm[1.47]:
Added a VALUES-LET macro for binding multiple values.

* edwin/struct.scm[1.69]:
Fixed bug in MARK-PERMANENT!.

* edwin/window.scm[1.147]:
Added a procedure to find an inferior containing a given x,y
coordinate. Used in support of mouse button stuff.

* edwin/xterm.scm[1.6]:
Support for mouse buttons. The support is not complete, but it does
more or less work. See x-mouse.scm for soem examples.

There is no support for chording (with multiple buttons, or with
button and key combos), multiple clicking, or dragging.

There is also no buffering of button events beyond the buffering done
by X itself. I'm not sure how much of a problem this is.

There is a small timing problem on edwin startup, where you can't
use a mouse button until a key has been pressed. I think that the
solution to this involves including mouse events (at least the button
events) in the input port abstraction.

1989-06-16 Chris Hanson <[email protected]>

* microcode/intern.c[9.48], microcode/intern.c[9.47]:
Change the string hashing algorithm one more time. This one looks
like more of a winner than the previous one.

* microcode/x11term.c[1.4.1.1]:
Delete definition of `UNSPECIFIC', which is now defined in "const.h".

* microcode/version.h[10.84]:
Significant changes to symbol interning code. Various other related
changes.

* microcode/intern.c[9.46]:
Significant rewrite -- changed algorithm used for string hashing,
altered interfaces of utility procedures. Eliminated character-list
primitives, which are no longer used. Added new primitive,
`find-symbol', which is like `symbol->string' except that it returns
#F if the symbol was not already in the obarray.

* microcode/fasload.c[9.41]:
Change reference to `Intern' to refer to `intern_symbol'. The latter
is a replacement for the former, with somewhat different interface.

* microcode/xdebug.c[9.25]:
Change code that previously referenced `Find_Symbol' to use the
replacement procedure `find_symbol'. Reformat primitives to use up to
date argument and value macros.

* microcode/extern.h[9.31]:
Delete export of `Find_Symbol', which has been deleted.

* microcode/const.h[9.33]:
Add definition for `UNSPECIFIC'.
Delete definition of parameters for string-hashing algorithm.

* compiler/rtlgen/rgcomb.scm[4.11]:
Fix bug in calling sequence of known lexprs: when callee needs a
static link, the number of arguments pushed is one less than the frame
size. Previously this case was not being handled specially, and the
resulting code worked only because the compiled code interface had a
bug which caused the wrong number of arguments to be popped.

1989-06-13 Chris Hanson <[email protected]>

* runtime/udata.scm[14.9]:
Fix formatting of error message in `make-primitive-procedure'.

1989-06-13 Guillermo J. Rozas <[email protected]>

* microcode/cmpint.c[1.4]:
Add most linking code and a few other procedures.

1989-06-12 Guillermo J. Rozas <[email protected]>

* microcode/boot.c[9.56]:
Change the normal termination message.

* microcode/version.h[10.83]:
Fix comentry_lexpr_apply. The number of arguments passed to it does
not include the procedure, while invoke_lexpr expects it to be
included.

Bump the compiler's default constant space size.

Change the normal termination message.

* microcode/Attic/config.h[9.44]:
Bump constant space size for the compiler.

1989-06-10 Guillermo J. Rozas <[email protected]>

* compiler/base/toplev.scm[4.18]:
Fix trivial bug to recursive-compilation-results. Entries in
*recursive-compilation-results* are vectors, not lists!

1989-06-09 Chris Hanson <[email protected]>

* sf/make.scm[4.8], sf/sf.pkg[4.5], sf/toplev.scm[4.4]:
Add new global variable, `sf/default-declarations', which defines
extra declarations to be used in addition to those inside each file.

* runtime/gdatab.scm[14.4], runtime/global.scm[14.9],
runtime/io.scm[14.2], runtime/runtime.pkg[14.39],
runtime/savres.scm[14.9], runtime/version.scm[14.45]:
Add new event-receiver, `event:before-exit', which is invoked before
Scheme is killed and before a disk-restore is performed. This allows
cleaning up of any state, such as open files, that relates the runtime
system to the external world.

1989-06-08 Guillermo J. Rozas <[email protected]>

* microcode/bchdmp.c[9.44], microcode/bchgcl.c[9.35],
microcode/bchmmg.c[9.45], microcode/bchpur.c[9.44],
microcode/fasdump.c[9.42], microcode/gc.h[9.27],
microcode/gccode.h[9.40], microcode/gcloop.c[9.30],
microcode/interp.c[9.51], microcode/memmag.c[9.38],
microcode/purify.c[9.39], microcode/purutl.c[9.36],
microcode/version.h[10.82]:
Add new flags to the microcode:

BAD_TYPES_INNOCUOUS
If a bad type is seen, the system treats it as a non-pointer for most
purposes.

BAD_TYPES_LETHAL
If a bad type is seen, kill Scheme with TERM_INVALID_TYPE_CODE.

The default is BAD_TYPES_LETHAL when there is no compiler support,
BAD_TYPES_INNOCUOUS when there is.

1989-06-07 Chris Hanson <[email protected]>

* runtime/vector.scm[14.4]:
Fix stupid bugs introduced in `vector-map'.

1989-06-07 Guillermo J. Rozas <[email protected]>

* compiler/machines/vax/dassm2.scm[4.9]:
Add primitive uuo link disassembly.

* compiler/machines/bobcat/dassm1.scm[4.11],
compiler/machines/vax/dassm1.scm[4.4]:
Supply missing argument to compiled-code-block/dbg-info from
compiler:disassemble.

* microcode/version.h[10.81]:
Make SIGUSR2 renice scheme.

1989-06-07 Mark Friedman <[email protected]>

* compiler/fgopt/desenv.scm[4.2]:
Take into account the case where a variable is in a register (i.e. not
on the stack).
Delete-integrated-parameters is now done in a separate phase.

1989-06-06 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.38], runtime/version.scm[14.44]:
Add new operations `append-map', `append-map*', `append-map!',
`append-map*!', and `1d-table/alist'.

* runtime/list.scm[14.7]:
Add new operations `append-map', `append-map*'; these are respectively
like `mapcan' and `mapcan*' but using `append' instead of `append!'.
Rename `mapcan' and `mapcan*' to `append-map!' and `append-map*!',
respectively. Keep old names for compatibility.

* runtime/vector.scm[14.3]:
Add new operation `for-each-vector-element'.

* runtime/prop1d.scm[14.3]:
Add new operation `1d-table/alist'.

1989-06-06 Guillermo J. Rozas <[email protected]>

* microcode/cmpint.c[1.3]:
Wrote comutil_link.

1989-06-03 Guillermo J. Rozas <[email protected]>

* microcode/cmpint.c[1.2]:
Finished comutil_apply.

1989-06-02 Guillermo J. Rozas <[email protected]>

* microcode/boot.c[9.55], microcode/version.h[10.80]:
Fix "infinite" GC bug when a bad type code is encountered in the gc.
Split a part of Microcode_Termination off into
attempt_termination_backout.

1989-05-31 Guillermo J. Rozas <[email protected]>

* compiler/base/utils.scm[4.12], compiler/fgopt/order.scm[4.12],
compiler/machines/bobcat/make.scm-68040[4.45],
compiler/rtlgen/rgcomb.scm[4.10], compiler/rtlgen/rtlgen.scm[4.18]:
Remove the concept of safe primitives since the microcode now takes
care of them.

Add primitive uuo link unparsing to the disassembler.

* compiler/machines/bobcat/dassm2.scm[4.12.2.1]:
New branch until Arthur is done.
Add the primitive uuo link offsets to the disassembler.

* microcode/bchmmg.c[9.44], microcode/bchpur.c[9.43],
microcode/const.h[9.32], microcode/dmpwrld.c[9.29],
microcode/fasload.c[9.40], microcode/fhooks.c[9.30],
microcode/futures.h[9.25], microcode/hooks.c[9.36],
microcode/intercom.c[9.26], microcode/interp.c[9.50],
microcode/lookup.h[9.42], microcode/memmag.c[9.37],
microcode/prims.h[9.34], microcode/purify.c[9.38],
microcode/step.c[9.26], microcode/utils.c[9.42],
microcode/version.h[10.79]:
Make unsafe primitives back out of compiled code so that they don't
have to be treated specially by the compiler or the compiled code
interface. This allows UUO linking of primitives, and applying
primitives from compiled code without going to the interpreter.

"Unsafe" primitives must use the new macro
PRIMITIVE_CANONICALIZE_CONTEXT before they start manipulating the
interpreter's state.

This macro will allow them to proceed if they have been invoked from
the interpreter, or will cause them to back into the interpreter and
restart if they have been invoked from compiled code.

* microcode/findprim.c[9.40]:
Make Prim_Inexistent (last entry in the primitive table) have "lexpr"
arity so that the apply code in the compiler interface can avoid
checking whether a primitive is implemented in the common case.

1989-05-26 Guillermo J. Rozas <[email protected]>

* microcode/version.h[10.78]:
Fix many little bugs found when porting to the PMAX and at various
other times.

* microcode/errors.h[9.33]:
0x19 + 1 = 0x1a, not 0x20!

1989-05-25 Chris Hanson <[email protected]>

* runtime/Attic/syntab.scm[14.3], runtime/runtime.pkg[14.37]:
Add operation to extract defined names from a syntax table.

* runtime/uenvir.scm[14.9], runtime/uenvir.scm[14.8]:
*** empty log message ***

1989-05-24 Guillermo J. Rozas <[email protected]>

* microcode/wsize.c[9.26]:
Make Wsize output the few remaining definitions required by config.h.

* microcode/object.h[9.30]:
Add a comment about consistency between object.h and Wsize.c.

* microcode/utils.c[9.41]:
Fix bug in debugging version of Apply_Primitive. The macro
INTERNAL_APPLY_PRIMITIVE was being called with only one argument.

* microcode/Attic/config.h[9.43]:
Add PMAX (MIPS) definitions.

* microcode/debug.c[9.33]:
Add missing extern declaration.

* microcode/const.h[9.31]:
Fix edit bug. MINIMUM_LENGTH must include the other fields!

* compiler/machines/vax/dassm2.scm[4.8]:
Improve the heuristic disassembly so that the disassembler can win
when there is no .binf file.

* compiler/machines/vax/dassm1.scm[4.3]:
Fix bug in disassembler/write-compiled-code-block by which the
dbg-info/labels were being extracted even if there was no info structure.

1989-05-22 Guillermo J. Rozas <[email protected]>

* compiler/machines/vax/compiler.cbf[1.2]:
Remove crsend which has moved to compiler/etc.

1989-05-21 Guillermo J. Rozas <[email protected]>

* compiler/machines/vax/compiler.pkg[1.4],
compiler/machines/vax/compiler.pkg[1.3]:
Fix pathname for global-definitions.

* compiler/machines/vax/compiler.pkg[1.2],
compiler/machines/vax/decls.scm[4.4],
compiler/machines/vax/make.scm[4.44],
compiler/machines/vax/make.scm[4.5]:
Upgrade to Liar 4.44 because of many bug fixes.

* runtime/make.scm[14.12]:
Allow for the possibility of purifying the bcon file, although it is
currently turned off for space reasons.

* runtime/uenvir.scm[14.7]:
Rewrite definition of system-global-environment/bound-names to use
obarray->list.

* runtime/version.scm[14.43]:
Increment version number after some bug fixes by various people.

* runtime/global.scm[14.8]:
Add a new global procedure, obarray->list so that symbols can be
filtered, etc.

* runtime/packag.scm[14.7]:
Allow for the possibility of the bcon file being purified, although it
currently is not because of space reasons.

* compiler/machines/bobcat/make.scm-68040[4.44]:
Minor changes to reflect VAX needs.

Add base/crstop to compiler files.

The compiler system name now includes the processor kind (Motorola
MC68020), (DEC VAX), etc.

* compiler/machines/bobcat/compiler.pkg[1.22.1.1],
compiler/machines/bobcat/decls.scm[4.21.1.1]:
New branch until arthur unlocks.

* runtime/debug.scm[14.12]:
Fix bug in terse-print-expression. This procedure was checking for
debugging-info on the wrong expression!

* compiler/fgopt/reuse.scm[1.3]:
Fix bug in node/noop?. variable-assigned? can't be used because it is
set up by phase/design-environment-frames which runs AFTER
phase/subproblem-ordering which is using this procedure.

* compiler/machines/vax/rules1.scm[4.6]:
Fix broken rule. To set the type it was using BICL rather than BISL!

* compiler/machines/vax/lapgen.scm[4.7]:
Fix inverted conditional clauses in constant->ea.

* compiler/base/crstop.scm[1.3]:
Eliminate unreferenced variable warning caused by last edit.

* compiler/base/crstop.scm[1.2]:
Eliminate double fasdump in cross-compile-bin-file-end.

1989-05-19 Guillermo J. Rozas <[email protected]>

* compiler/machines/vax/dassm2.scm[4.7]:
Fix external label disassembly. The disassembler was only printing the
first word correctly, and then it was printing the second as an
instruction.

1989-05-17 Guillermo J. Rozas <[email protected]>

* compiler/back/bittop.scm[1.11]:
Compiled code block NMV header is now inserted as an object so that
the cross compiler can dump the resulting compiled code block.
Some reorganization of the final phase.

* compiler/machines/vax/assmd.scm[4.5],
compiler/machines/vax/coerce.scm[1.4],
compiler/machines/vax/dassm1.scm[4.2],
compiler/machines/vax/dassm2.scm[4.6],
compiler/machines/vax/dassm3.scm[1.3],
compiler/machines/vax/decls.scm[4.3],
compiler/machines/vax/dsyn.scm[1.6],
compiler/machines/vax/inerly.scm[1.5],
compiler/machines/vax/insmac.scm[1.12],
compiler/machines/vax/instr1.scm[1.6],
compiler/machines/vax/instr2.scm[1.5],
compiler/machines/vax/instr3.scm[1.8],
compiler/machines/vax/insutl.scm[4.2],
compiler/machines/vax/lapgen.scm[4.6],
compiler/machines/vax/machin.scm[4.5],
compiler/machines/vax/make.scm[4.4],
compiler/machines/vax/rgspcm.scm[4.2],
compiler/machines/vax/rules1.scm[4.5],
compiler/machines/vax/rules2.scm[4.3],
compiler/machines/vax/rules3.scm[4.7],
compiler/machines/vax/rules4.scm[4.2]:
New VAX port, May 1989.

1989-05-16 Chris Hanson <[email protected]>

* edwin/schmod.scm[1.11]:
Use new syntax-entry "p" bit to properly describe the Scheme prefix
character actions.

* microcode/syntax.c[1.18], microcode/syntax.c[1.17],
microcode/syntax.c[1.16], microcode/syntax.c[1.15],
microcode/syntax.h[1.5], microcode/version.h[10.77]:
Add new syntax_entry bit, "p", which indicates that the character is a
prefix character. A combination of `syntaxcode_whitespace' and this
bit is equivalent to `syntaxcode_quote' -- except that the new bit can
be used in combination with other codes to provide new functionality.

1989-05-16 Guillermo J. Rozas <[email protected]>

* microcode/bintopsb.c[9.37]:
Add a hack for easy cross compilation to machines with a different endianness.

1989-05-15 Guillermo J. Rozas <[email protected]>

* microcode/bintopsb.c[9.36]:
Allow TC_COMPILED_CODE_BLOCK when the allow_cc option is given.

1989-05-12 Henry M. Wu <[email protected]>

* runtime/defstr.scm[14.8]:
Fixed slot option parsing to check for missing arguments.

1989-05-11 Arthur Gleckler <[email protected]>

* compiler/back/lapgn2.scm[1.9.1.2], compiler/back/regmap.scm[4.7.1.3],
compiler/machines/bobcat/compiler.pkg[1.14.1.2],
compiler/machines/bobcat/compiler.sf[1.6.1.2],
compiler/machines/bobcat/dassm2.scm[4.12.1.2],
compiler/machines/bobcat/dassm3.scm[4.6.1.2],
compiler/machines/bobcat/decls.scm[4.18.1.2],
compiler/machines/bobcat/lapgen.scm[4.18.1.2],
compiler/machines/bobcat/machin.scm[4.13.1.2],
compiler/machines/bobcat/rules1.scm[4.18.1.2],
compiler/machines/bobcat/rules2.scm[4.7.1.2],
compiler/rtlbase/rgraph.scm[4.4.1.2],
compiler/rtlbase/rtlcon.scm[4.15.1.2],
compiler/rtlbase/rtlexp.scm[4.10.1.2],
compiler/rtlbase/rtlty1.scm[4.13.1.2],
compiler/rtlgen/opncod.scm[4.22.2.2],
compiler/rtlopt/rcse1.scm[4.17.1.2]:
Open-coding of floating-point primitives.

1989-05-10 Arthur Gleckler <[email protected]>

* microcode/flonum.c[9.26]:
Changed floating-point predicates to return booleans, not one and zero.

1989-05-10 Chris Hanson <[email protected]>

* compiler/fgopt/closan.scm[4.8]:
Don't update the procedure's closing-block in this pass -- fix it in
the next pass. See the comment in the code for more details.

1989-05-10 Guillermo J. Rozas <[email protected]>

* runtime/stream.scm[14.3]:
Fix the definition of head and tail to check for a proper stream.

1989-05-08 Chris Hanson <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.43]:
*** empty log message ***

* compiler/base/toplev.scm[4.17]:
Use `sf/pathname-defaulting' to predict where `sf' will put its
output file.

* sf/sf.pkg[4.4]:
Make `sf/pathname-defaulting' available for users of `sf' to predict
where the output files will go.

* compiler/base/contin.scm[4.8], compiler/base/ctypes.scm[4.12],
compiler/base/proced.scm[4.13], compiler/fgopt/operan.scm[4.6]:
If the last application of a procedure is deleted, make sure that the
procedure no longer satisfies `procedure-always-known-operator?'.

1989-05-04 Guillermo J. Rozas <[email protected]>

* runtime/error.scm[14.9]:
Remove fossil introduced while making previous change.

* runtime/error.scm[14.8]:
Fix bugs in condition/environment and condition/substitute-environment?

* runtime/make.scm[14.11]:
Fix order problem: intern was used before it was defined.

* microcode/primutl.c[9.50]:
Fix references to _toupper.

1989-05-03 Chris Hanson <[email protected]>

* microcode/findprim.c[9.39]:
Don't use _toupper() since it doesn't exist in non-HP OS.

1989-05-03 Guillermo J. Rozas <[email protected]>

* microcode/syntax.c[1.14]:
Add a cast from enum_type to int so it can be used to index an array.

1989-05-01 Chris Hanson <[email protected]>

* edwin/clscon.scm[1.3]:
Associate new operation `object-description' with object tags so that
inspection tools understand how to examine class-system instances.

* edwin/class.scm[1.70]:
Add operation `object-description' which is to be used by inspection
tools to examine class-system instances.

* microcode/regex.c[1.8], microcode/regex.h[1.3],
microcode/syntax.c[1.13], microcode/syntax.h[1.4]:
Update copyright notice on regular-expression and syntax-table code to
detail the relationship between this code and the original GNU Emacs
code from which it was derived. Warn users that they may be
restricted by the GNU license in this case.

1989-04-28 Chris Hanson <[email protected]>

* edwin/argred.scm[1.29], edwin/autold.scm[1.43],
edwin/autosv.scm[1.21], edwin/basic.scm[1.98],
edwin/bufcom.scm[1.82], edwin/buffer.scm[1.130],
edwin/buffrm.scm[1.32], edwin/bufinp.scm[1.2],
edwin/bufmnu.scm[1.110], edwin/bufout.scm[1.2],
edwin/bufset.scm[1.7], edwin/bufwfs.scm[1.5],
edwin/bufwin.scm[1.279], edwin/bufwiu.scm[1.9],
edwin/bufwmc.scm[1.4], edwin/c-mode.scm[1.43], edwin/calias.scm[1.5],
edwin/cinden.scm[1.3], edwin/class.scm[1.69], edwin/clscon.scm[1.2],
edwin/clsmac.scm[1.2], edwin/comman.scm[1.58],
edwin/comred.scm[1.74], edwin/comtab.scm[1.52],
edwin/comwin.scm[1.135], edwin/curren.scm[1.83],
edwin/debuge.scm[1.37], edwin/dired.scm[1.102],
edwin/editor.scm[1.187], edwin/edtfrm.scm[1.75],
edwin/edtstr.scm[1.4], edwin/evlcom.scm[1.14],
edwin/filcom.scm[1.136], edwin/fileio.scm[1.91],
edwin/fill.scm[1.44], edwin/grpops.scm[1.6], edwin/hlpcom.scm[1.88],
edwin/image.scm[1.123], edwin/info.scm[1.90], edwin/input.scm[1.79],
edwin/intmod.scm[1.35], edwin/iserch.scm[1.6], edwin/keymap.scm[1.7],
edwin/kilcom.scm[1.58], edwin/kmacro.scm[1.30],
edwin/lincom.scm[1.103], edwin/linden.scm[1.118],
edwin/loadef.scm[1.3], edwin/lspcom.scm[1.150],
edwin/macros.scm[1.46], edwin/midas.scm[1.14],
edwin/modefs.scm[1.117], edwin/modes.scm[1.23],
edwin/modwin.scm[1.29], edwin/motcom.scm[1.39],
edwin/motion.scm[1.80], edwin/nvector.scm[1.7],
edwin/pasmod.scm[1.42], edwin/prompt.scm[1.134],
edwin/reccom.scm[1.13], edwin/regcom.scm[1.18],
edwin/regexp.scm[1.48], edwin/regops.scm[1.80],
edwin/rename.scm[1.2], edwin/replaz.scm[1.65], edwin/ring.scm[1.9],
edwin/schmod.scm[1.10], edwin/screen.scm[1.81],
edwin/search.scm[1.146], edwin/sercom.scm[1.54],
edwin/simple.scm[1.29], edwin/strpad.scm[1.4],
edwin/strtab.scm[1.41], edwin/struct.scm[1.68],
edwin/syntax.scm[1.69], edwin/tagutl.scm[1.34],
edwin/texcom.scm[1.32], edwin/things.scm[1.78],
edwin/tparse.scm[1.65], edwin/tximod.scm[1.12], edwin/undo.scm[1.45],
edwin/unix.scm[1.6], edwin/utils.scm[1.15], edwin/utlwin.scm[1.51],
edwin/wincom.scm[1.93], edwin/window.scm[1.146],
edwin/winout.scm[1.3], edwin/winren.scm[1.2], edwin/xform.scm[1.5],
edwin/xterm.scm[1.5], runtime/rgxcmp.scm[1.101]:
Add GNU License warning to copyright headers.

* edwin/make.scm[3.9]:
*** empty log message ***

* edwin/grpops.scm[1.5], edwin/utils.scm[1.14]:
Change group deletion operation to limit the gap length to a
particular size, given by the new parameter `gap-maximum-extra'. This
change requires microcode 10.76 or later, as it uses the new primitive
`set-string-maximum-length!' to avoid consing a new string.

* edwin/linden.scm[1.117]:
Fix "double body indent" feature of special forms so that it works in
all cases.

* edwin/iserch.scm[1.5]:
Always clear the minibuffer message after an incremental search.

* edwin/regcom.scm[1.17]:
Fix typo in `insert-register' command.

* edwin/struct.scm[1.67]:
Change `mark-{right,left}-inserting' to be the same as
`mark-permanent!' if the argument is (respectively) {right,left}
inserting.

* microcode/string.c[9.32], microcode/version.h[10.76]:
Implement new primitive: `set-string-maximum-length!'.

1989-04-27 Chris Hanson <[email protected]>

* compiler/machines/bobcat/rules1.scm[4.22]:
Fix bug in rules to push or cons fixnums, so that they use temporary
hardware register in which to box the fixnum. Previously they were
just clobbering the source register.

1989-04-26 Chris Hanson <[email protected]>

* edwin/editor.scm[1.186], edwin/edwin.pkg[1.4]:
Add variable `edwin-reset-args' which is passed to `edwin-reset' on
its first call.

* edwin/filcom.scm[1.135], edwin/fileio.scm[1.90], edwin/make.scm[3.8],
edwin/tagutl.scm[1.33]:
Change `find-file' and friends to check file-modification-time when a
buffer already exists for that file, and offer to revert the buffer if
the time is not consistent.

* compiler/machines/bobcat/compiler.pkg[1.22],
compiler/machines/bobcat/make.scm-68040[4.42]:
Add new RTL optimization pass: `invertible-expression-elimination'.

* compiler/base/toplev.scm[4.16]:
Add new phase to find pairs of invertible RTL expressions and
eliminate them.

* compiler/machines/bobcat/decls.scm[4.21]:
Add new file "rtlopt/rinvex". Remove all integration dependencies
"base/constr".

1989-04-25 Chris Hanson <[email protected]>

* edwin/dired.scm[1.101]:
Fix bug which occurred when moving to last line of Dired buffer.

* edwin/xterm.scm[1.4]:
Improve performance problem introduced in last revision.

* microcode/x11term.c[1.4]:
Fix drastic performance loss caused by previous revision's bug fix.

* microcode/version.h[10.75], microcode/x11term.c[1.3]:
Change `xterm-read-chars': if called with non-false interval, and an
event flag is set during that interval, return immediately. If no
characters have been received, return the amount of the interval which
remains, so the primitive can be continued by reentering it with this
number as its argument.

* edwin/make.scm[3.7]:
Various changes. This version requires microcode version 10.75 or
later.

* edwin/intmod.scm[1.34]:
Change name of `interaction' mode to be `scheme-interaction'.

* edwin/edtstr.scm[1.3], edwin/modefs.scm[1.116]:
Generate variable to hold mode object of initial buffer. Move this
variable and `initial-buffer-name' to "modefs".

* edwin/simple.scm[1.28]:
Implement new procedures `guarantee-newline' and
`guarantee-newlines', which are like `insert-newline' and
`insert-newlines' respectively, except that they output one fewer
newline if point is at the beginning of a line.

* edwin/unix.scm[1.5]:
`os/make-dired-line' now returns #F if it is unable to get the file's
attributes.

* edwin/dired.scm[1.100]:
`os/make-dired-line' can now return #F if it is unable to get the
file's attributes. Do something reasonable when that happens.

Rewrite the code that generates the buffer contents to improve
performance.

* edwin/xterm.scm[1.3]:
Changes because `xterm-read-chars' can now return an integer, which
means that there were no characters, some other kind of event was
received, and the timeout hasn't yet finished. When this occurs,
process the events and finish waiting the appropriate amount of time.

* edwin/winout.scm[1.2]:
Call `keyboard-active?' in the `flush-output' operation, to allow the
screen to process input events periodically. This isn't the "right
thing", but it will help.

* runtime/unxprm.scm[1.4]:
Fix stupid bug in `file-writable?'.

* runtime/version.scm[14.42]:
*** empty log message ***

1989-04-24 Chris Hanson <[email protected]>

* runtime/unxprm.scm[1.3]:
Don't call `pathname->input-truename' for primitives that are going to
do file probes themselves. Just canonicalize the filename and pass it
in.

1989-04-23 Chris Hanson <[email protected]>

* edwin/make.scm[3.6]:
*** empty log message ***

* runtime/unxprm.scm[1.2]:
Fix error in definition of `unix/current-file-time'.

* edwin/struct.scm[1.66]:
Rewrite mark comparisons for increased speed. Redesign permanent mark
handling to permit reuse of previously recorded permanent marks.
Rewrite permanent mark list scanning to increase speed.

* edwin/utils.scm[1.13]:
Fix bug in `y-or-n?'.

* edwin/wincom.scm[1.92]:
Update some documentation strings.

* edwin/prompt.scm[1.133]:
In `repeat-complex-command', range check the argument correctly.

* edwin/iserch.scm[1.4]:
Handle #\return character correctly in incremental search.

* edwin/intmod.scm[1.33]:
Change interaction mode to be more like scheme-interaction mode in
Emacs.

* edwin/grpops.scm[1.4]:
Change name `%set-mark-position!' to `set-mark-position!'.

* edwin/fill.scm[1.43], edwin/reccom.scm[1.12], edwin/things.scm[1.77]:
Change usage of `mark-permanent!'.

* edwin/curren.scm[1.82]:
Change definition of `guarantee-mark' to make it more like other
`guarantee-FOO' procedures in the runtime system.

* edwin/comred.scm[1.73]:
Add argument to `dispatch-on-command' to force recording of command in
command-history.

* edwin/bufwiu.scm[1.8]:
Rewrite changes and clip daemons to reduce consing and runtime.

* edwin/bufwin.scm[1.278]:
Change `%window-y-center' to restrict its result to the proper range.

* edwin/basic.scm[1.97]:
Add argument to `dispatch-on-command' to force recording of command in
command-history. Also change use of `mark-permanent!'.

* edwin/autosv.scm[1.20]:
Enable `delete-auto-save-files' by default. Update names and
documentation of variables.

1989-04-21 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.36]:
Export new procedures `weak-list->list' and `list->weak-list'.

* runtime/list.scm[14.6]:
Return unspecific value for weak-pair side-effects. Write new
procedures `weak-list->list' and `list->weak-list'.

1989-04-21 Mark Friedman <[email protected]>

* compiler/base/blocks.scm[4.10], compiler/base/lvalue.scm[4.14],
compiler/base/proced.scm[4.12], compiler/base/toplev.scm[4.15],
compiler/fggen/fggen.scm[4.16], compiler/fgopt/blktyp.scm[4.11],
compiler/fgopt/delint.scm[1.1], compiler/fgopt/reuse.scm[1.2],
compiler/machines/bobcat/compiler.pkg[1.21],
compiler/machines/bobcat/decls.scm[4.20],
compiler/rtlgen/fndvar.scm[1.2], compiler/rtlgen/rgproc.scm[4.8]:
Support for passing arguments in registers.

* compiler/fgopt/order.scm[4.11]:
Support for passing arguments to procedures in registers.

* compiler/machines/bobcat/make.scm-68040[4.41]:
New version of compiler which includes support for passing arguments
to procedures in registers.

1989-04-20 Chris Hanson <[email protected]>

* edwin/make.scm[3.5]:
*** empty log message ***

* edwin/decls.scm[1.4]:
Make sure that "make" is resyntaxed.

* edwin/unix.scm[1.4]:
Add new operations `os/file-directory?', `os/make-filename', and
`os/filename-as-directory'. These operations replicate the action of
existing operations, but they allow the performance of filename
completion to be improved significantly over what could previously be
achieved.

Add new operation `os/completion-ignored-extensions' which is used to
initialize the variable of that name.

Change `os/directory-list-completions' to special case the null-string
prefix for added performance.

* edwin/schmod.scm[1.9]:
Add indentation methods for `there-exists?' and `for-all?'.

* edwin/prompt.scm[1.132]:
Don't sort the strings returned by the `list-completions' operation.
That operation is now responsible for determining the order. This
allows customization of the sorting.

* edwin/filcom.scm[1.134]:
Implement `completion-ignored-extensions'. When directories appear in
a completion list, display them with trailing slashes.

* edwin/bufwin.scm[1.277]:
Trivial rewriting of some code.

* edwin/iserch.scm[1.3]:
Treat ALL ascii control characters specially when deciding whether or
not to exit incremental search. "Wrapped" should not appear when the
search direction is reversed.

* microcode/x11term.c[1.2]:
Fix bug: C range checks don't work the way I foolishly thought they
did, but because C makes no distinction between booleans and integers,
there was no error message to indicate that I was doing something
wrong.

* runtime/pathnm.scm[14.4]:
Don't simplify the directory "./" to the null string.

1989-04-19 Arthur Gleckler <[email protected]>

* microcode/version.h[10.74], microcode/version.h[10.70.1.2]:
Make floating-point spill area.

1989-04-18 Chris Hanson <[email protected]>

* edwin/edwin.sf[1.3]:
Improve script so that it will work from bare sources.

* sf/object.scm[4.2]:
Eliminate use of `make-named-tag', which has been flushed from the
runtime system.

* runtime/Attic/syntax.scm[14.8], runtime/defstr.scm[14.7],
runtime/lambda.scm[14.5], runtime/make.scm[14.10],
runtime/parse.scm[14.7], runtime/runtime.pkg[14.35],
runtime/scan.scm[14.3], runtime/scode.scm[14.5]:
Update runtime system to use lower case as the canonical case for
interned symbols.

* compiler/rtlgen/opncod.scm[4.29]:
It's OK to assume that the GC header of an object passed to
`vector-length' contains a zero type code.

* runtime/udata.scm[14.8]:
Update copyright date.

* microcode/primutl.c[9.49]:
*** empty log message ***

* microcode/primutl.c[9.48], microcode/version.h[10.73],
runtime/udata.scm[14.7]:
Change `get-primitive-name' to return a string instead of a symbol.
This concentrates knowledge of symbols' internal case in the runtime
system.

1989-04-17 Chris Hanson <[email protected]>

* edwin/macros.scm[1.45]:
Eliminate references to `string->symbol'.

* edwin/syntax.scm[1.68]:
Don't need special structure tag for `syntax-table' any more -- normal
tag will do.

* compiler/base/ctypes.scm[4.11]:
Fix typo.

* compiler/machines/bobcat/compiler.pkg[1.20]:
Repackage the operator-analysis code.

* compiler/fgopt/operan.scm[4.5]:
Now that continuations have their `continuation/combinations' field
correctly initialized, there is no need to do it here. Additionally,
repackage this code.

* compiler/base/proced.scm[4.11]:
Make the `continuation/combinations' field of a procedure be
initialized properly at creation.

* compiler/base/ctypes.scm[4.10]:
Fix typo in `combination/constant!'. Also add some code to make the
result more consistent.

1989-04-15 Chris Hanson <[email protected]>

* microcode/findprim.c[9.38], microcode/findprim.c[9.37],
microcode/primutl.c[9.47], microcode/version.h[10.72]:
Eliminate case sensitivities in the primitive lookup mechanism.

* compiler/back/lapgn3.scm[4.3], compiler/back/syntax.scm[1.23],
compiler/base/debug.scm[4.9], compiler/base/lvalue.scm[4.13],
compiler/base/pmlook.scm[1.7], compiler/base/scode.scm[4.6],
compiler/base/utils.scm[4.11], compiler/fggen/canon.scm[1.4],
compiler/machines/bobcat/make.scm-68040[4.40],
compiler/rtlbase/rtlcfg.scm[4.7], compiler/rtlgen/rtlgen.scm[4.17]:
Rewrite all case-sensitive symbol operations to be case-insensitive.

* runtime/uenvir.scm[14.6]:
Fix bug in lookup of integrated stack-allocated compiled-code
variables.

* runtime/version.scm[14.41]:
*** empty log message ***

* runtime/runtime.pkg[14.34]:
Export new procedure `%make-combination' to the debugging-info
package.

* runtime/framex.scm[14.8]:
Use new procedure `%make-combination' to construct the combinations
being returned. This is needed because one of those combinations
might have failed because of a bad operand, and `make-combination'
might try to constant fold the combination. The new procedure doesn't
try to perform any constant folding.

* runtime/scomb.scm[14.3]:
Create procedure `%make-combination' that does not attempt to constant
fold the combination before constructing it.

* runtime/scode.scm[14.4]:
Change `symbol->string' so that it returns a lower-case string for
normal interned symbols.

* edwin/argred.scm[1.28], edwin/autold.scm[1.42],
edwin/autosv.scm[1.19], edwin/basic.scm[1.96],
edwin/bufcom.scm[1.81], edwin/buffer.scm[1.129],
edwin/buffrm.scm[1.31], edwin/bufmnu.scm[1.109],
edwin/bufwin.scm[1.276], edwin/c-mode.scm[1.42],
edwin/cinden.scm[1.2], edwin/class.scm[1.68], edwin/comman.scm[1.57],
edwin/comred.scm[1.72], edwin/comtab.scm[1.51],
edwin/curren.scm[1.81], edwin/debuge.scm[1.36], edwin/decls.scm[1.3],
edwin/dired.scm[1.99], edwin/editor.scm[1.185],
edwin/edtfrm.scm[1.74], edwin/edtstr.scm[1.2], edwin/edwin.ldr[1.3],
edwin/edwin.pkg[1.3], edwin/edwin.sf[1.2], edwin/evlcom.scm[1.13],
edwin/filcom.scm[1.133], edwin/fileio.scm[1.89],
edwin/fill.scm[1.42], edwin/grpops.scm[1.3], edwin/hlpcom.scm[1.87],
edwin/info.scm[1.89], edwin/input.scm[1.78], edwin/intmod.scm[1.32],
edwin/iserch.scm[1.2], edwin/keymap.scm[1.6], edwin/kilcom.scm[1.57],
edwin/kmacro.scm[1.29], edwin/lincom.scm[1.102],
edwin/linden.scm[1.116], edwin/loadef.scm[1.2],
edwin/lspcom.scm[1.149], edwin/macros.scm[1.44], edwin/make.scm[3.4],
edwin/midas.scm[1.13], edwin/modefs.scm[1.115],
edwin/modes.scm[1.22], edwin/modwin.scm[1.28],
edwin/motcom.scm[1.38], edwin/pasmod.scm[1.41],
edwin/prompt.scm[1.131], edwin/reccom.scm[1.11],
edwin/regcom.scm[1.16], edwin/regexp.scm[1.47],
edwin/replaz.scm[1.64], edwin/schmod.scm[1.8],
edwin/screen.scm[1.80], edwin/sercom.scm[1.53],
edwin/simple.scm[1.27], edwin/strtab.scm[1.40],
edwin/syntax.scm[1.67], edwin/tagutl.scm[1.32],
edwin/texcom.scm[1.31], edwin/things.scm[1.76],
edwin/tparse.scm[1.64], edwin/tximod.scm[1.11], edwin/undo.scm[1.44],
edwin/unix.scm[1.3], edwin/utils.scm[1.12], edwin/wincom.scm[1.91],
runtime/rgxcmp.scm[1.100]:
Many changes for GNU Emacs compatibility:

Change names of all commands, variables and modes; the new names are
symbols. All command names match those of Emacs; many variable names
also match.

Redesign command invocation code: new design uses `interactive'
specification nearly identical to that of Emacs. This permits
implementation of [repeat-complex-command]. The redesign necessitated
reworking some of the command prompting to make it fit the model.

Completion has been redesigned to work just like Emacs. The
performance of filename completion has been significantly improved.

Tags table stuff has been changed to be more like Emacs.

The performance of incremental search has been improved. Incremental
regexp search is now implemented.

The `recenter' command now clears the screen and redraws it if there
is no argument.

Scheme mode indentation is now like that in Emacs.

Keyboard interrupts are disabled while reading most characters.

[find-file] will call Dired if the argument is a directory.

The "Reading file ..." message is suppressed. Set the variable
`read-file-message' to true if you want it as it used to be.

The "override-message" (which is used to display messages and errors
in the typein window) now moves the typein window's cursor to the end
of the message. This results in the cursor moving to the end of the
message when an override-message overlays a typein in progress.

The prompting for [query-replace] and associated commands has been
changed to resemble Emacs'.

* microcode/syntax.c[1.12], microcode/version.h[10.71]:
Fix typo in `scan-sexps-forward'.

1989-04-06 Arthur Gleckler <[email protected]>

* microcode/version.h[10.70.1.1]:
New spill area for regular and floating-point registers in compiled code.

* compiler/machines/bobcat/dassm2.scm[4.12.1.1]:
Disassemble new compiler temporary references.

1989-04-05 Chris Hanson <[email protected]>

* edwin/make.scm[3.3]:
*** empty log message ***

* edwin/utils.scm[1.11]:
Modify `char-controlify' and `char-control-metafy' to use new
procedure `ascii-controlified?' when determining whether or not to set
the control bit in the result.

* edwin/tagutl.scm[1.31]:
Update to reflect changes in `find-file-noselect'.

* edwin/paths.scm[1.2]:
Update pathnames to reflect current installation. Add new pathname
for tutorial file.

* edwin/hlpcom.scm[1.86]:
Rewrite handling of tutorial so that the file pathnames are correct.

* edwin/filcom.scm[1.132], edwin/fileio.scm[1.88]:
Change `find-file', `read-buffer', and related procedures to separate
out certain functionality in new procedure `after-find-file'. This
new procedure sets the read-only bit, puts up any special messages
regarding the read/write status of the file, and does mode
initialization. In addition, `find-file' now catches file errors and
recovers from them in a reasonably graceful way.

* edwin/calias.scm[1.4]:
Create procedure `ascii-controlified?' which is true of characters
which are ASCII control characters (not counting things like RET, LFD,
TAB, etc.).

* edwin/bufwiu.scm[1.7]:
In direct-update, must wrap the redrawing code with
`with-screen-in-update!' so that the screen gets flushed correctly.

* edwin/autold.scm[1.41]:
Change `load-edwin-file' to default the directory of the input
pathname to the library directory.

* runtime/runtime.pkg[14.33], runtime/uerror.scm[14.8]:
Make file-system errors have a common generalization.

* runtime/framex.scm[14.7]:
Random typo in previous change.

* runtime/version.scm[14.40]:
Organize handling of file system errors so that they share a common
generalization type.

* runtime/pathnm.scm[14.3]:
Use proper error-type to signal open file error.

* runtime/unxpth.scm[14.5]:
Move unix primitives elsewhere.

* runtime/framex.scm[14.6]:
Can't use `po' in the runtime system -- it is strictly a part of the
compiler. Use `pp' instead.

1989-04-03 Chris Hanson <[email protected]>

* compiler/fgopt/subfre.scm[1.2]:
When a procedure appears in the operator position, the free variables
of all of its callees, as well as itself, must be collected.

1989-03-30 Guillermo J. Rozas <[email protected]>

* edwin/buffrm.scm[1.30], edwin/bufwiu.scm[1.6], edwin/decls.scm[1.2],
edwin/editor.scm[1.184], edwin/edwin.ldr[1.2], edwin/edwin.pkg[1.2],
edwin/grpops.scm[1.2], edwin/intmod.scm[1.31], edwin/make.scm[3.2],
edwin/screen.scm[1.79], edwin/wincom.scm[1.90], edwin/xterm.scm[1.2]:
1) Add support for ordinary terminals by using the curses library.

2) Eliminate some interrupt windows in direct output.

3) Add operations to the screen data structure to accomodate curses.

4) Add a new structure, a display, which consists of a keyboard and a screen.

5) Conditions not trapped by edwin now revert to the user in a
reasonable way, ie. the terminal should be in the same state that it
was before edwin was entered.

6) Reentering edwin after an unhandled condition updates the display.

7) The interaction buffer prompt is now inserted in the "exit" thunk
of the dynamic unwind, so that an abort will insert it as well.

8) Fix wrong number of args bug in ^R Screen Video.

1989-03-29 Guillermo J. Rozas <[email protected]>

* compiler/rtlgen/opncod.scm[4.28]:
Fix a trivial bug in the open coding of SYSTEM-VECTOR-SIZE and
VECTOR-LENGTH. The header's type code field must be cleared before
or'ing in the new type.

* runtime/conpar.scm[14.7], runtime/debug.scm[14.11],
runtime/error.scm[14.7], runtime/framex.scm[14.5],
runtime/gc.scm[14.2], runtime/runtime.pkg[14.32],
runtime/version.scm[14.39]:
Add support for trap recovery:
- New condition types for hardware traps have been added.
- The stack parser knows how to parse (heuristically) the trap
recovery information.
- The debugger prints a description of the context of the trap.
- hardware-trap-frame/print-registers and
hardware-trap-frame/print-stack can be used on stack-frames of type
hardware-trap to display more information.
- The debugger's Y command (new) prints the stack frame structure
corresponding to the current subproblem.

1989-03-29 Panayotis Skordos <[email protected]>

* microcode/array.c[9.35]:
array-cons-reals: use double precision as much as possible

1989-03-28 Arthur Gleckler <[email protected]>

* compiler/base/cfg3.scm[4.3]:
Deleted second copy of copyright message.

1989-03-28 Guillermo J. Rozas <[email protected]>

* microcode/interp.c[9.49]:
Registers[REGBLOCK_PRIMITIVE] is now cleared when a primitive aborts
with a non-error/interrupt code.

1989-03-27 Guillermo J. Rozas <[email protected]>

* microcode/Attic/config.h[9.42], microcode/bchmmg.c[9.43],
microcode/bchpur.c[9.42], microcode/bkpt.h[9.26],
microcode/boot.c[9.54], microcode/const.h[9.30],
microcode/default.h[9.31], microcode/errors.h[9.32],
microcode/fasload.c[9.39], microcode/fixobj.h[9.27],
microcode/hooks.c[9.35], microcode/interp.c[9.48],
microcode/interp.h[9.31], microcode/intrpt.h[1.5],
microcode/memmag.c[9.36], microcode/purify.c[9.37],
microcode/purutl.c[9.35], microcode/returns.h[9.35],
microcode/sysprim.c[9.32], microcode/utabmd.scm[9.47],
microcode/utils.c[9.40], microcode/version.h[10.70]:
Trap recovery has been changed. The microcode attempts to determine
how much state is valid and then saves all the pertinent information
(pc, registers, etc) so that the context of the trap and the rest of
the stack can be examined from scheme.

Primitives for reading/setting/enabling the keyboard interrupt
characters have been added. There is now a single C keyboard
interrupt handler which dispatches according to the signal received
and what the current handler is supposed to do.

Scheme tty input has been rewritten for the NTH time. reader_context
and reader_state structures have been merged.

1989-03-23 Guillermo J. Rozas <[email protected]>

* runtime/utabs.scm[14.2]:
Add optional filename argument to read-microcode-tables! to specify
a users own filename from scheme.

1989-03-21 Arthur Gleckler <[email protected]>

* compiler/machines/bobcat/rules2.scm[4.7.1.1],
compiler/rtlopt/rcse1.scm[4.17.1.1]:
New branch for inlining floating-point arithmetic.

1989-03-20 Arthur Gleckler <[email protected]>

* compiler/machines/bobcat/dassm3.scm[4.6.1.1]:
Add floating-point instruction disassembly.

1989-03-15 Chris Hanson <[email protected]>

* edwin/unix.scm[1.2]:
Changes to make Dired work better.

* edwin/tagutl.scm[1.30]:
Changes to make this work with Emacs' tags tables.

* edwin/fileio.scm[1.87]:
Change `read-buffer' to correctly update the read-only flag. Also fix
some bugs which might have occurred if the truename was #F.

* edwin/filcom.scm[1.131]:
Change `current-default-pathname' and `pathname->buffer-name' to
support dired better. Add new operation `prompt-for-directory' to
help out as well.

* edwin/evlcom.scm[1.12]:
When evaluation errors occur, pop up buffer with error message in it.

* edwin/dired.scm[1.98]:
A number of changes to accomodate the unix environment.

* edwin/buffer.scm[1.128]:
Remove `writeable?' flag; define writability in terms of
`group-read-only?'.

* edwin/autold.scm[1.40]:
Don't echo fasloads to REPL when loading libraries.

* compiler/machines/bobcat/make.scm-68040[4.39], edwin/edwin.cbf[1.2],
edwin/make.scm[3.1]:
*** empty log message ***

1989-03-14 Chris Hanson <[email protected]>

* compiler/machines/bobcat/compiler.pkg[1.19]:
Changes to repackage the environment optimizer.

* compiler/fgopt/closan.scm[4.7]:
`undrift-procedure!' must set the block-parent of the procedure's
block to match the new closing-limit. Also: change the handling of
the closing-limit to guarantee that it is always either the same as
the closing-block, or #F; reorganize the code a bit.

* compiler/fgopt/envopt.scm[1.5]:
Rule which prevents lifting procedures of some "LET-like" procedures
is too general. Should not prevent trivial closures from being lifted
as far as they can.

* compiler/fgopt/sideff.scm[1.5]:
Can't pass a context to `make-return', because it expects a block.
This is because this procedure is usually called from fggen, and the
contexts are constructed later. Change this code to pass the block
and then clobber it.

* compiler/rtlgen/rgretn.scm[4.12]:
The `block/procedure' of a block is not always a procedure (it might
be an expression). Sometimes must check it to make sure.

* runtime/runtime.pkg[14.31]:
Export `condition/message' for use in error-reporting handlers.

* microcode/syntax.c[1.11]:
Fix another trivial bug.

* edwin/argred.scm[1.27], edwin/autold.scm[1.39],
edwin/autosv.scm[1.18], edwin/basic.scm[1.95],
edwin/bufcom.scm[1.80], edwin/buffer.scm[1.127],
edwin/buffrm.scm[1.29], edwin/bufmnu.scm[1.108],
edwin/bufset.scm[1.6], edwin/bufwfs.scm[1.4],
edwin/bufwin.scm[1.275], edwin/bufwiu.scm[1.5],
edwin/bufwmc.scm[1.3], edwin/c-mode.scm[1.41], edwin/calias.scm[1.3],
edwin/class.scm[1.67], edwin/comman.scm[1.56],
edwin/comred.scm[1.71], edwin/comtab.scm[1.50],
edwin/comwin.scm[1.134], edwin/curren.scm[1.80],
edwin/debuge.scm[1.35], edwin/dired.scm[1.97],
edwin/editor.scm[1.183], edwin/edtfrm.scm[1.73],
edwin/evlcom.scm[1.11], edwin/filcom.scm[1.130],
edwin/fileio.scm[1.86], edwin/fill.scm[1.41], edwin/hlpcom.scm[1.85],
edwin/image.scm[1.122], edwin/info.scm[1.88], edwin/input.scm[1.77],
edwin/intmod.scm[1.30], edwin/keymap.scm[1.5],
edwin/kilcom.scm[1.56], edwin/kmacro.scm[1.28],
edwin/lincom.scm[1.101], edwin/linden.scm[1.115],
edwin/lspcom.scm[1.148], edwin/macros.scm[1.43],
edwin/midas.scm[1.12], edwin/modefs.scm[1.114],
edwin/modes.scm[1.21], edwin/modwin.scm[1.27],
edwin/motcom.scm[1.37], edwin/motion.scm[1.79],
edwin/nvector.scm[1.6], edwin/pasmod.scm[1.40],
edwin/prompt.scm[1.130], edwin/reccom.scm[1.10],
edwin/regcom.scm[1.15], edwin/regexp.scm[1.46],
edwin/regops.scm[1.79], edwin/replaz.scm[1.63], edwin/ring.scm[1.8],
edwin/schmod.scm[1.7], edwin/screen.scm[1.78],
edwin/search.scm[1.145], edwin/sercom.scm[1.52],
edwin/simple.scm[1.26], edwin/strpad.scm[1.3],
edwin/strtab.scm[1.39], edwin/struct.scm[1.65],
edwin/syntax.scm[1.66], edwin/tagutl.scm[1.29],
edwin/texcom.scm[1.30], edwin/things.scm[1.75],
edwin/tparse.scm[1.63], edwin/tximod.scm[1.10], edwin/undo.scm[1.43],
edwin/utils.scm[1.10], edwin/utlwin.scm[1.50],
edwin/wincom.scm[1.89], edwin/window.scm[1.145],
edwin/xform.scm[1.4], runtime/rgxcmp.scm[1.99]:
Initial working version for C-Scheme.

* runtime/unxpth.scm[14.4]:
Don't use vector-ref on result of file-attributes.

* runtime/version.scm[14.38]:
*** empty log message ***

* runtime/sfile.scm[14.3]:
Change `delete-file' to return #F if the file does not exist, instead
of signalling an error.

* runtime/unxpth.scm[14.3]:
Add new operations to support Edwin:
file-modes
set-file-modes!
unix/file-access
file-writable?
unix/current-uid
unix/current-gid

* runtime/savres.scm[14.8]:
Change `identify-world' to accept an output port as its optional
argument, rather than a cmdl.

* microcode/version.h[10.69]:
Various changes to support Edwin.

* microcode/pruxfs.c[9.34]:
Implement new primitives to support Edwin:
file-modes
set-file-modes!
file-access
current-uid
current-gid

* microcode/syntax.c[1.10]:
Fix some random typos.

1989-03-10 Chris Hanson <[email protected]>

* compiler/machines/bobcat/rules1.scm[4.21]:
Add rule for

(ASSIGN (BYTE-OFFSET (REGISTER (? address)) (? offset))
(REGISTER (? source)))

1989-03-07 Chris Hanson <[email protected]>

* runtime/version.scm[14.37]:
*** empty log message ***

* runtime/uerror.scm[14.7]:
Add handlers for other errors that can be signalled by
`environment-link-name'.

* runtime/list.scm[14.5]:
Add `weak-memq'. Make compound car/cdr operations type-safe.

1989-03-06 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.30]:
Export new operations to global environment.

* runtime/rep.scm[14.9]:
Add new operations `with-cmdl/{in,out}put-port'.

* runtime/wind.scm[14.3]:
Add new operation `object-component-binder'.

* runtime/output.scm[14.5]:
Add new operation `set-current-output-port!'.

* runtime/input.scm[14.4]:
Add new operation `set-current-input-port!'.

1989-03-02 Chris Hanson <[email protected]>

* edwin/autold.scm[1.38], edwin/basic.scm[1.94],
edwin/buffrm.scm[1.28], edwin/bufwfs.scm[1.3],
edwin/bufwin.scm[1.274], edwin/bufwiu.scm[1.4],
edwin/bufwmc.scm[1.2], edwin/calias.scm[1.2], edwin/class.scm[1.66],
edwin/comman.scm[1.55], edwin/comred.scm[1.70],
edwin/comwin.scm[1.133], edwin/curren.scm[1.79],
edwin/editor.scm[1.182], edwin/edtfrm.scm[1.72],
edwin/filcom.scm[1.129], edwin/info.scm[1.87], edwin/input.scm[1.76],
edwin/intmod.scm[1.29], edwin/linden.scm[1.114],
edwin/modwin.scm[1.26], edwin/motion.scm[1.78],
edwin/regexp.scm[1.45], edwin/regops.scm[1.78],
edwin/search.scm[1.144], edwin/simple.scm[1.25],
edwin/struct.scm[1.64], edwin/syntax.scm[1.65], edwin/undo.scm[1.42],
edwin/utlwin.scm[1.49], edwin/window.scm[1.144],
runtime/rgxcmp.scm[1.98]:
*** empty log message ***

1989-03-01 Gerald Jay Sussman <[email protected]>

* microcode/sgx.c[1.5]:
Add \n\ to end of each line in primitive procedure documentation
strings.

1989-02-28 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.29]:
Add "record" package from JAR.

* runtime/defstr.scm[14.6]:
Allow stored description of named structure to be either a defstruct
structure description, or a procedure. In the latter case the
procedure is just called to produce the description.

* runtime/record.scm[1.2], runtime/version.scm[14.36]:
*** empty log message ***

* runtime/datime.scm[14.2]:
Fencepost error in `zellers-congruence' caused day of week to be
incorrect in February.

* runtime/error.scm[14.6]:
`proceed' from an error, with an argument, wasn't skipping the first
subproblem frame.

1989-02-24 Chris Hanson <[email protected]>

* runtime/version.scm[14.35]:
*** empty log message ***

* runtime/runtime.pkg[14.28]:
Add support for X11 graphics on HP machines.

1989-02-22 Chris Hanson <[email protected]>

* runtime/pp.scm[14.6]:
Don't treat data lists like combinations.

1989-02-19 Guillermo J. Rozas <[email protected]>

* microcode/findprim.c[9.36]:
Fix a problem whereby invalid C was generated when there were no primitives.

* microcode/fft.c[9.25]:
Fix problem with duplicate definition of PI.

* microcode/Attic/config.h[9.41], microcode/array.c[9.34],
microcode/array.h[9.29], microcode/fixnum.c[9.27],
microcode/mul.c[9.26], microcode/sgraph_a.c[1.6],
microcode/version.h[10.68]:
Some changes to unix.c to remove most conditionalization by machine
and OS type. Most of the code is now conditionalized according to
flags like HAS_<mumble> or macros defined by the included files.

mul.c is now included by fixnum.c, and all the assembly language
versions have been moved to mul.c.

1989-02-17 Guillermo J. Rozas <[email protected]>

* microcode/mul.c[9.25]:
Fix a declaration in Mul.

1989-02-15 Guillermo J. Rozas <[email protected]>

* microcode/Attic/config.h[9.40]:
Fix some documentation on flags, and add sun4 info.

* microcode/wsize.c[9.25]:
Improve mantissa bit computation so that it takes round-off into account.

* microcode/wsize.c[9.24]:
Some enhancements for floating alignment and error checking.

1989-02-14 Guillermo J. Rozas <[email protected]>

* microcode/ppband.c[9.33]:
Fix uninitialized variable bug.

1989-02-10 Guillermo J. Rozas <[email protected]>

* runtime/contin.scm[14.3]:
Fix within-continuation and rewrite invocation-method/reentrant to
perform the state space motion after the control throw.

* runtime/version.scm[14.34]:
Add #@ to read back hashed objects.
Fix within-continuation and rewrite invocation-method/reentrant to
perform the state space motion after the control throw.

* runtime/parse.scm[14.6]:
Add #@ to read back hashed objects.

1989-02-09 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.27]:
Pretty-printer needs definition of `unparse-list/prefix-pair?' from
unparser.

* runtime/version.scm[14.33]:
*** empty log message ***

* runtime/pp.scm[14.5], runtime/unpars.scm[14.12]:
Unparser now treats QUASIQUOTE, UNQUOTE, and UNQUOTE-SPLICING
specially.

1989-02-08 Chris Hanson <[email protected]>

* runtime/defstr.scm[14.5]:
`define-structure' macro should return the name of the structure which
was defined.

1989-01-30 Chris Hanson <[email protected]>

* microcode/comutl.c[1.18], microcode/debug.c[9.32]:
Eliminate C compiler warning.

1989-01-21 Chris Hanson <[email protected]>

* compiler/rtlopt/rcse1.scm[4.17]:
Eliminate unreferenced variable warning.

* compiler/machines/bobcat/make.scm-68040[4.38]:
*** empty log message ***

* compiler/machines/bobcat/compiler.pkg[1.18]:
Define `combination/inline/simple?'.

* compiler/machines/bobcat/rules1.scm[4.20]:
Add several new rules which are needed because of changes to the
expression simplifier in the RTL generator. Rewrite the rules for
handling string manipulation: the previous rules weren't complete or
accurate.

* compiler/rtlbase/rtlcon.scm[4.16]:
Change the expression-simplification to generate temporaries for more
kinds of expressions. This provides more intermediate values for the
CSE to work on, allowing it to do a better job, but assumes that the
code compressor will eliminate them later.

* compiler/rtlgen/rtlgen.scm[4.16]:
Implement more aggressive compression of the RTL, because the
intermediate swell caused by having one RTL instruction per bblock
object finally exceeded the available memory for a reasonable file.
The current solution, which compresses the instructions associated
with each FG node as they are generated, saves a considerable amount
of space.

* compiler/rtlgen/opncod.scm[4.27]:
Open coding of primitives: flesh out the type and range checking,
which was previously a little spotty (e.g. general-car-cdr had no type
checking). Improve handling of `string-ref' and `string-set!' so that
they inline code in the computed index case. Flush inline coding of
`char->ascii', which was incorrect anyway since it didn't check to see
if the character was in the ASCII range.

* compiler/fgopt/simple.scm[4.4]:
Change simplicity analysis: previously all inline coded combinations
were treated as simple, now there are some (e.g. generic arithmetic)
which are not. There is still a problem relating to type checking
which could cause problems: if a type or range check fails in an
otherwise simple inlined combination, the exception handling is not
simple. This should be fixed without making the entire combination
non-simple.

* compiler/rtlopt/rcse1.scm[4.16], compiler/rtlopt/rcse2.scm[4.11],
compiler/rtlopt/rcsesr.scm[4.2]:
Change CSE to record expressions as their values are pushed on the
stack; previously these expressions weren't recorded until their first
reference. Fix `insert-stack-destination!' which was not setting up
the quantity associated with a stack slot correctly. Fix stack model
which was not invalidating things correctly when pops occurred.
Change method for `invocation:special-primitive' to forget the
contents of all pseudo registers.

1989-01-18 Chris Hanson <[email protected]>

* compiler/machines/bobcat/decls.scm[4.19]:
Remove all dependencies on "rtlbase/rtlcon".

* compiler/machines/bobcat/lapgen.scm[4.19]:
Fix stupid typo in `increment-machine-register'.

* compiler/machines/bobcat/machin.scm[4.14]:
Add definitions of `address-units-per-object' and
`address-units-per-packed-char', which are more convenient numbers to
manipulate when doing index arithmetic.

* compiler/machines/bobcat/rules1.scm[4.19]:
Fix bug in rule for this expression:

(ASSIGN (OFFSET (REGISTER (? a)) (? n)) (FIXNUM->OBJECT (REGISTER (? source))))

There was a non-obvious order of argument evaluation problem here.

1989-01-07 Chris Hanson <[email protected]>

* compiler/rtlgen/opncod.scm[4.26]:
Bug in interaction of continuation-entry setup code and invocation of
primitive for which the continuation-entry was created: the push of
extra items (e.g. dynamic link) was happening before the arguments to
the primitive were stashed in registers. The result was that
arguments that depended on the stack pointer were gobbling up the
wrong stuff.

* runtime/conpar.scm[14.6]:
Fix several bugs in the stack-frame->continuation unparser.
It now seems to work on compiled code as well.

1989-01-06 Chris Hanson <[email protected]>

* runtime/debug.scm[14.10]:
Fix bug in Z command. Change G command so that it doesn't needlessly
load debugging information for frames that aren't displayed.

* runtime/debug.scm[14.9]:
Extend V and Z commands to allow lookup of symbols in compiled code
environments.

* runtime/dbgcmd.scm[14.4]:
Redefine `debug/eval' so that it will lookup symbols in compiled code
environments. Remove call to `hook/repl-environment' which seems
unnecessary.

* runtime/dbgutl.scm[14.7], runtime/debug.scm[14.8],
runtime/framex.scm[14.4], runtime/infstr.scm[1.2],
runtime/infutl.scm[1.7], runtime/runtime.pkg[14.26],
runtime/uenvir.scm[14.5], runtime/unpars.scm[14.11],
runtime/version.scm[14.32]:
Change handling of debugging information to match changes in compiler
version 4.37. Add facilities for accessing source code from debugging
info. Add where commands `p' and `s' to debugger, moving the old
commands bound to those keys. Change debugger display formats a bit.

* compiler/base/infnew.scm[4.4], compiler/base/subprb.scm[4.6],
compiler/fggen/fggen.scm[4.15],
compiler/machines/bobcat/compiler.pkg[1.17],
compiler/machines/bobcat/make.scm-68040[4.37]:
Change debugging output again; add slot to continuations and
procedures to hold pointer to original source code (SCode). Change
FG generator to save this information so it can be included in the
debugging output.

Change variable names in debugging information to record other facts:
Is the variable a cell? Is it integrated, and if so, what is its
value?

1989-01-05 Chris Hanson <[email protected]>

* microcode/comutl.c[1.17], microcode/version.h[10.67]:
`stack-address-offset' primitive had sign bug.

1988-12-31 Chris Hanson <[email protected]>

* compiler/etc/stackp.scm[1.5]:
Adjust for changes in continuation parser code.

* runtime/make.scm[14.9]:
Fix site loading mechanism; previous try didn't work.

* runtime/dbgutl.scm[14.6]:
Adjust frame display to look better on regular console.

* runtime/infutl.scm[1.6], runtime/make.scm[14.8],
runtime/make.scm[14.7]:
Add mechanism to allow normalization of directory prefixes. Add
"site" file mechanism to cold load to allow this to be performed in a
site-specific manner.

1988-12-30 Chris Hanson <[email protected]>

* runtime/dbgutl.scm[14.5], runtime/debug.scm[14.7],
runtime/infutl.scm[1.5], runtime/make.scm[14.6],
runtime/runtime.pkg[14.25], runtime/runtime.pkg[14.24],
runtime/savres.scm[14.7]:
Fix some bugs related to compiled code debugging when no debugging
info is available. Change cold load to cause updating of debugging
information for the runtime system. Fix demand loading so that, when
disabled, procedure names are shown when the debugging information is
already loaded. Discard debugging info before doing disk-save.

* compiler/base/infnew.scm[4.3], compiler/base/toplev.scm[4.14],
compiler/fgopt/blktyp.scm[4.10],
compiler/machines/bobcat/compiler.pkg[1.16],
compiler/machines/bobcat/dassm1.scm[4.10],
compiler/machines/bobcat/dassm2.scm[4.12],
compiler/machines/bobcat/make.scm-68040[4.36],
compiler/machines/bobcat/rules3.scm[4.15],
compiler/machines/bobcat/rules4.scm[4.5],
compiler/rtlgen/opncod.scm[4.25], compiler/rtlgen/rgproc.scm[4.7],
compiler/rtlgen/rgrval.scm[4.13], compiler/rtlgen/rgstmt.scm[4.10],
compiler/rtlgen/rtlgen.scm[4.15]:
Flesh out debugging information. This goes along with changes
introduced in runtime system version 14.31.

* runtime/advice.scm[14.3], runtime/conpar.scm[14.5],
runtime/cpoint.scm[14.3], runtime/dbgutl.scm[14.4],
runtime/debug.scm[14.6], runtime/framex.scm[14.3],
runtime/infutl.scm[1.4], runtime/lambda.scm[14.4],
runtime/load.scm[14.5], runtime/packag.scm[14.6],
runtime/runtime.pkg[14.23], runtime/stream.scm[14.2],
runtime/udata.scm[14.6], runtime/uenvir.scm[14.4],
runtime/uerror.scm[14.6], runtime/unpars.scm[14.10],
runtime/vector.scm[14.2], runtime/version.scm[14.31],
runtime/where.scm[14.5]:
Extensive changes to utilize compiled code debugging information:

* The stack parser now knows how to parse individual compiled code
subproblem frames.

* The compiler-info package has been updated to match the new compiled
code info format.

* The environment abstraction has been generalized to handle compiled
code stack and closure frames, when debugging info is available to
describe them.

* The `debug' and `where' presentation formats have been adjusted
somewhat to allow compiled code information to be presented
reasonably.

* `debug' has been extended to provide the common `A' command from
`where'; there should be little need to invoke `where' from `debug'.

1988-12-29 Chris Hanson <[email protected]>

* microcode/version.h[10.66]:
Change definition of `compiled-entry-kind' for return addresses. Now,
the second element is a subtype: 0 means that the offset to the next
return address is fixed and known; 1 means that the next element on
the stack is a dynamic link, which points at the next return address;
and 2 means that this is the "return-to-interpreter" return address.
The third element is either a non-negative offset (for subtypes 0 and
2) or -1 (for subtype 1).

1988-12-28 Chris Hanson <[email protected]>

* microcode/Attic/config.h[9.39]:
Adjust floating point formats for pyramid.

1988-12-23 Chris Hanson <[email protected]>

* cref/forpkg.scm[1.3], cref/make.scm[1.4]:
Don't bother putting out cref information for global and primitive
references. For a program like the compiler, these comprise about
half the total cref, and are of little use.

* compiler/rtlbase/rtlobj.scm[4.5]:
Add `next-continuation-offset' slot, which is either the stack offset
to the next continuation, or false indicating that a dynamic link is
in use.

* microcode/comutl.c[1.16], microcode/comutl.c[1.15],
microcode/version.h[10.65]:
Fix definition of `stack-top-address' to make it consistent with
definition of `object-datum' (which will be used to extract the
address value of a stack address). Implement new primitive
`stack-address-offset' which computes the offset (in objects) between
the stack-address argument and the top of stack.

1988-12-20 Chris Hanson <[email protected]>

* compiler/base/ctypes.scm[4.9], compiler/fgopt/sideff.scm[1.4]:
If combination has a `continuation-push', prevent that continuation
from being pushed when the combination is constant folded in any way.

* sf/subst.scm[3.8.1.1]:
Do not perform automagic integrations by default. This optimization
caused a bug in the runtime system version 13.108 where event
distributors ignored the internal `receivers' binding and used the
empty list instead.

1988-12-19 Chris Hanson <[email protected]>

* microcode/version.h[10.32.1.1], microcode/version.h[10.2.1.3]:
Change from using `stty/gtty' to ioctls. Eliminate operating system
dependence on C-g synchronization.

* compiler/machines/bobcat/make.scm-68040[4.35]:
*** empty log message ***

* compiler/fggen/fggen.scm[4.14], compiler/fggen/fggen.scm[4.13]:
Rewrite the handling of SCode quotation expressions to allow `car' to
be constant folded by the compiler.

* compiler/fgopt/contan.scm[4.8]:
Tweak popping-limits computation once again: the external block is not
necessarily one of the limits, and assuming that it is forces the use
of dynamic links in many common situations.

* compiler/machines/bobcat/compiler.pkg[1.15]:
Repackage constant folding code.

* compiler/fgopt/folcon.scm[4.7]:
Do not require `object-immutable?' of arguments to constant folding
operations. Because of the rule which says that constants appearing
in program text must be immutable, we can freely constant fold
anything that we can get our hands on, provided that we never constant
fold anything to does a cons-like operation.

* compiler/base/utils.scm[4.10]:
Add references such as `car' and `vector-length' to set of constant
foldable "functions".

1988-12-16 Chris Hanson <[email protected]>

* compiler/fgopt/blktyp.scm[4.9]:
Delete reference to `block-frame', which has been made obsolete.

* compiler/base/blocks.scm[4.9], compiler/base/contin.scm[4.7],
compiler/base/proced.scm[4.10], compiler/base/rvalue.scm[4.5],
compiler/rtlbase/rtlobj.scm[4.4], compiler/rtlgen/rtlgen.scm[4.14]:
Add hooks for debugging info.

* compiler/base/object.scm[4.6], compiler/base/subprb.scm[4.5],
compiler/rtlopt/rcseht.scm[4.7], compiler/rtlopt/rcserq.scm[4.4]:
No longer need to use `set-type-object-description!'.

1988-12-15 Arthur Gleckler <[email protected]>

* compiler/machines/bobcat/compiler.pkg[1.14.1.1]:
Changes for open-coding of floating-point arithmetic.

1988-12-15 Chris Hanson <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.34]:
*** empty log message ***

* compiler/rtlopt/rlife.scm[1.60]:
Fix bug in `instruction-dead?': an assignment whose RHS contains side
effects cannot be considered dead.

* compiler/rtlgen/rtlgen.scm[4.13]:
Introduce new algorithm to delete unreachable nodes from the RTL
graph.

* compiler/fgopt/folcon.scm[4.6]:
Change (commented-out) code that used to use lvalue marking mechanism
to now use new mechanism.

* compiler/fgopt/contan.scm[4.7]:
Improve popping limits computation -- new algorithm should eliminate
dynamic links in many situations.

* compiler/base/lvalue.scm[4.12], compiler/base/macros.scm[4.9]:
Add generation and alist slots to lvalue objects, similar in form and
purpose to those used in CFG nodes. Remove the now-obsolete marks
slot.

* compiler/base/proced.scm[4.9]:
Change procedure unparser to show the label in a more palatable way.

* compiler/base/blocks.scm[4.8]:
Change block unparser to show the type, and to show the associated
procedure's label in a more palatable way.

* compiler/back/mermap.scm[1.3]:
In the merged register map, if there are multiple aliases of the same
type for a given register, eliminate all but one of the aliases.

* compiler/machines/bobcat/compiler.pkg[1.14]:
Repackage lifetime-analysis and register-allocation code.

* compiler/machines/bobcat/compiler.sf[1.7]:
Eliminate fluid let to patch SF since the latter has now been fixed.
Introduce use of `->environment'.

1988-12-14 Chris Hanson <[email protected]>

* compiler/base/blocks.scm[4.7]:
(block-partial-ancestry): allow ancestor to be same as starting block.

* compiler/rtlgen/opncod.scm[4.24]:
Fix another case which was generating dangling code.

1988-12-13 Arthur Gleckler <[email protected]>

* compiler/machines/bobcat/compiler.sf[1.6.1.1],
compiler/machines/bobcat/decls.scm[4.18.1.1]:
Changes for open-coding floating-point arithmetic.

1988-12-13 Chris Hanson <[email protected]>

* compiler/fgopt/sideff.scm[1.3]:
When generating new code, must use contexts instead of blocks.

* compiler/machines/bobcat/rules2.scm[4.7]:
Rule for (OVERFLOW-TEST) must return some code. Before, it was
winning entirely by accident.

* compiler/fgopt/sideff.scm[1.2]:
Change `block' to `context'.

* compiler/base/lvalue.scm[4.11]:
Delete `variable-auxiliary!'.

* compiler/rtlgen/rgretn.scm[4.11]:
*** empty log message ***

* compiler/machines/bobcat/make.scm-68040[4.33]:
Lots of changes to implement frame reuse stuff. See the individual
log entries.

* sf/make.scm[4.7]:
Delete all of the system predicate expansions: variable?, etc.

* runtime/version.scm[14.30]:
Change modifiers to return `unassigned'. This will result in superior
compiled code as the compiler will not attempt to produce the original
value of the location being modified.

* compiler/rtlgen/rgretn.scm[4.10]:
Frame reuse changes. Also add change to prevent noop from pop-frames.

* compiler/fgopt/envopt.scm[1.4]:
* Change `block' to `context' where needed.

* New abstractions support owning and disowning of block children.

* compiler/fgopt/closan.scm[4.6]:
* Guarantee that `combination/model!' is always defined.

* Change `block' to `context' where needed.

* compiler/fgopt/blktyp.scm[4.8]:
* Make changes to convert `block' to `context'.

* Update multiple value stuff.

* Move `original-block-parent' to "base/blocks.scm".

* Add pass which runs afterwards to find closures and install the
correct reference context for each.

* compiler/machines/bobcat/decls.scm[4.18]:
* Fix bug in `syntax-files!': was not causing circularly dependent
files to recompile one another when needed.

* Add declarations for new files.

* compiler/base/utils.scm[4.9]:
* Change `discriminate-items' to guarantee that the order of the
results is the same as the order of the argument.

* Update multiple value stuff.

* compiler/base/toplev.scm[4.13]:
* Add new passes to setup frame adjustments of combinations, compute
subproblem free variables, and recompute closure contexts.

* compiler/base/proced.scm[4.8]:
* Change `block' to `context' where needed.

* Define `procedure-arity-encoding'.

* Delete `set-procedure-closing-block!'.

* Redefine `procedure/type' to discriminate closure and
trivial-closure types.

* compiler/base/object.scm[4.5]:
`tagged-vector/subclass-predicate' should use `vector-tag?' predicate
rather than `pair?'.

* compiler/base/lvalue.scm[4.10]:
* Add new lvalue slots: `initial-{for,back}ward-links'. These
correspond to `initial-values' in that they are the first order links
of the DFG.

* Delete `popping-limits' slot from variables.

* Change `variable-in-known-location?' to accept a context rather than
a block.

* compiler/base/ctypes.scm[4.8]:
* Change `block' fields to `context' where appropriate.

* Add two new items to combinations: `frame-adjustment' and
`reuse-existing-frame?'.

* Add `context' field to `true-test' node.

* Add new node type: `stack-overwrite'.

* Delete `node/offset'. Offsets are now stored in reference contexts.

* compiler/machines/bobcat/compiler.pkg[1.13]:
Significant repackaging.

* compiler/base/blocks.scm[4.6]:
Redefine `block-original-parent' to be `original-block-parent' in
keeping with changes to closure analysis.

* compiler/fgopt/contan.scm[4.6]:
Change analysis in two ways: (1) static link computation now uses
`initial-backward-links' to get much more precise notion of when
parent is the stack link. (2) dynamic link computation stores all of
the popping limits in the caller block for use by the combination code
generator.

1988-12-12 Chris Hanson <[email protected]>

* compiler/machines/bobcat/decls.scm[4.16.1.2]:
* Fix bug in `syntax-files!': was not causing circularly dependent
files to recompile one another when needed.

* Add declarations for new files.

* compiler/rtlopt/rcompr.scm[1.8]:
Fix some bugs: (1) was allowing volatile expressions to be moved
around; (2) was moving stack references over assignments to the same
stack location.

* compiler/rtlbase/rtlexp.scm[4.11]:
New definitions:
rtl:invocation-prefix?
rtl:volatile-expression?
rtl:stack-reference-expression?
rtl:expression-contains?

* compiler/fgopt/simapp.scm[4.4]:
Change to store the initial links as well as the transitive closure.

* compiler/base/macros.scm[4.8]:
* Add two new slots to lvalue type.

* Change vector modification definitions to return `unspecific' rather
than the original value.

* compiler/rtlgen/rtlgen.scm[4.12],
compiler/rtlgen/rtlgen.scm[4.11.1.2]:
New type: stack-overwrite. Remove changes to delete unreachable
nodes, as this code was buggy. No longer needed because of changes to
code generator, but we'll replace it soon anyway.

* compiler/rtlgen/rgstmt.scm[4.9], compiler/rtlgen/rgstmt.scm[4.8.1.2]:
Block->context changes. Improve handling of static links. New type:
stack-overwrite.

* compiler/rtlgen/rgrval.scm[4.12],
compiler/rtlgen/rgrval.scm[4.11.1.2]:
Multiple value changes. Block->context changes.

* compiler/rtlgen/rgretn.scm[4.8.1.2]:
Frame reuse changes. Also add change to prevent noop from pop-frames.

* compiler/rtlgen/rgproc.scm[4.6], compiler/rtlgen/rgproc.scm[4.5.1.2]:
Many changes for frame reuse stuff.

* compiler/rtlgen/rgcomb.scm[4.9], compiler/rtlgen/rgcomb.scm[4.8.1.2]:
Significant changes for frame reuse stuff.

* compiler/rtlgen/opncod.scm[4.23],
compiler/rtlgen/opncod.scm[4.22.1.2]:
* Change `block' to `context' where needed.

* Change open coding stuff to avoid generating code that will be
dangling in the output.

* compiler/rtlgen/fndblk.scm[4.10],
compiler/rtlgen/fndblk.scm[4.9.1.2]:
* Move everything except the core block search stuff to another file.

* Update to use reference contexts.

* compiler/fgopt/simple.scm[4.3], compiler/fgopt/simple.scm[4.2.1.2]:
Many changes: see the diff.

* compiler/fgopt/order.scm[4.10], compiler/fgopt/order.scm[4.9.1.2]:
Major changes to accomodate frame reuse.

* compiler/fgopt/offset.scm[4.6], compiler/fgopt/offset.scm[4.5.1.2]:
Significant changes: see the diff.

* compiler/fgopt/envopt.scm[1.1.1.2]:
* Change `block' to `context' where needed.

* New abstractions support owning and disowning of block children.

* compiler/fgopt/contan.scm[4.5.1.2]:
Change analysis in two ways: (1) static link computation now uses
`initial-backward-links' to get much more precise notion of when
parent is the stack link. (2) dynamic link computation stores all of
the popping limits in the caller block for use by the combination code
generator.

* compiler/fgopt/conect.scm[4.4], compiler/fgopt/conect.scm[4.3.1.2]:
Add new node type: `stack-overwrite'

* compiler/fgopt/closan.scm[4.4.1.2]:
* Guarantee that `combination/model!' is always defined.

* Change `block' to `context' where needed.

* compiler/fgopt/blktyp.scm[4.5.1.2]:
* Make changes to convert `block' to `context'.

* Update multiple value stuff.

* Move `block-original-parent' elsewhere.

* Add pass which runs afterwards to find closures and install the
correct reference context for each.

* compiler/fggen/fggen.scm[4.12], compiler/fggen/fggen.scm[4.11.1.2]:
* Make necessary changes to convert `block' to `context'.

* Initialize the contexts at the end of FG generation.

* compiler/base/utils.scm[4.6.1.2]:
* Change `discriminate-items' to guarantee that the order of the
results is the same as the order of the argument.

* Update multiple value stuff.

* compiler/base/toplev.scm[4.11.1.2]:
* Add new passes to setup frame adjustments of combinations, compute
subproblem free variables, and recompute closure contexts.

* compiler/base/subprb.scm[4.4], compiler/base/subprb.scm[4.3.1.2]:
* Add `free-variables' slot to subproblem objects.

* Define `continuation*/type' and `set-continuation*/type!'.

* Define `continuation*/context'.

* Change `block' to `context' in virtual continuations.

* compiler/base/rvalue.scm[4.4], compiler/base/rvalue.scm[4.3.1.2]:
Change `block' to `context' where needed.

* compiler/base/proced.scm[4.6.1.2]:
* Change `block' to `context' where needed.

* Define `procedure-arity-encoding'.

* Delete `set-procedure-closing-block!'.

* Redefine `procedure/type' to discriminate closure and
trivial-closure types.

* compiler/base/object.scm[4.3.1.2]:
`tagged-vector/subclass-predicate' should use `vector-tag?' predicate
rather than `pair?'.

* compiler/base/lvalue.scm[4.7.1.2]:
* Add new lvalue slots: `initial-{for,back}ward-links'. These
correspond to `initial-values' in that they are the first order links
of the DFG.

* Delete `popping-limits' slot from variables.

* Change `variable-in-known-location?' to accept a context rather than
a block.

* compiler/base/debug.scm[4.8], compiler/base/debug.scm[4.7.1.2]:
* Add new node type: `stack-overwrite'.

* compiler/base/ctypes.scm[4.6.1.2]:
* Change `block' fields to `context' where appropriate.

* Add two new items to combinations: `frame-adjustment' and
`reuse-existing-frame?'.

* Add `context' field to `true-test' node.

* Add new node type: `stack-overwrite'.

* Delete `node/offset'. Offsets are now stored in reference contexts.

* compiler/base/contin.scm[4.6], compiler/base/contin.scm[4.5.1.2]:
Delete popping-limit stuff from continuations. Also delete
`reduction-continuation/block' which was never used.

* compiler/base/blocks.scm[4.5], compiler/base/blocks.scm[4.4.1.2]:
* Add `popping-limits' components to block.

* Change `ic-block?' to be non-integrable.

* Change `block-ancestry' to eliminate random extra argument.

* Define new procedure `block-partial-ancestry' which is like
`block-ancestry' except that it stops at a given ancestor.

* Make `stack-block/static-link?' be more sophisticated: static link
is not needed unless the block has some free variables. Also, for IC
parent, check to see if lookup is being used on the parent.

* Define new procedures `block-original-parent', and
`{dis,}own-block-child!'.

* compiler/machines/bobcat/compiler.pkg[1.11.1.2]:
Significant repackaging.

* sf/usiexp.scm[4.3]:
Delete all of the system predicate expansions: variable?, etc.

1988-12-12 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/dassm2.scm[4.11],
microcode/version.h[10.64]:
UUO links to entities and some procedures with optional arguments have
been improved.

1988-12-11 Chris Hanson <[email protected]>

* runtime/defstr.scm[14.4]:
Change modifiers to return `unassigned'. This will result in superior
compiled code as the compiler will not attempt to produce the original
value of the location being modified.

1988-12-08 Chris Hanson <[email protected]>

* microcode/hooks.c[9.34]:
Missing \n\ in documentation string.

1988-12-07 Arthur Gleckler <[email protected]>

* compiler/base/macros.scm[4.7.1.1],
compiler/base/toplev.scm[4.12.1.1]:
New branch for inlining floating-point arithmetic.

1988-12-06 Arthur Gleckler <[email protected]>

* compiler/back/lapgn2.scm[1.9.1.1], compiler/back/regmap.scm[4.7.1.2],
compiler/back/regmap.scm[4.7.1.1],
compiler/machines/bobcat/lapgen.scm[4.18.1.1],
compiler/machines/bobcat/machin.scm[4.13.1.1],
compiler/machines/bobcat/rules1.scm[4.18.1.1],
compiler/rtlbase/rgraph.scm[4.4.1.1],
compiler/rtlbase/rtlcon.scm[4.15.1.1],
compiler/rtlbase/rtlexp.scm[4.10.1.1],
compiler/rtlbase/rtlty1.scm[4.13.1.1],
compiler/rtlgen/opncod.scm[4.22.2.1]:
New branch for inlining floating-point arithmetic.

1988-12-06 Chris Hanson <[email protected]>

* compiler/base/debug.scm[4.7.1.1], compiler/fgopt/conect.scm[4.3.1.1],
compiler/fgopt/offset.scm[4.5.1.1],
compiler/fgopt/simple.scm[4.2.1.1],
compiler/machines/bobcat/decls.scm[4.16.1.1],
compiler/rtlgen/rtlgen.scm[4.11.1.1]:
*** empty log message ***

1988-12-06 Guillermo J. Rozas <[email protected]>

* compiler/base/ctypes.scm[4.7], compiler/base/lvalue.scm[4.9],
compiler/base/object.scm[4.4], compiler/base/proced.scm[4.7],
compiler/base/switch.scm[4.10], compiler/base/toplev.scm[4.12],
compiler/base/utils.scm[4.8], compiler/fggen/declar.scm[1.5],
compiler/fgopt/blktyp.scm[4.7], compiler/fgopt/closan.scm[4.5],
compiler/fgopt/envopt.scm[1.3], compiler/fgopt/folcon.scm[4.5],
compiler/fgopt/outer.scm[4.5],
compiler/machines/bobcat/decls.scm[4.17],
compiler/machines/bobcat/make.scm-68040[4.32],
compiler/rtlgen/rgretn.scm[4.9]:
Rewrite constant folding and closure analysis phases.
Write two new phases: compute-call-graph and side-effect-analysis.

* compiler/machines/bobcat/compiler.pkg[1.12]:
Add a couple of fg optimizer phases:
- compute call graph
- side effect analysis

1988-12-05 Chris Hanson <[email protected]>

* compiler/base/toplev.scm[4.11.1.1],
compiler/fgopt/contan.scm[4.5.1.1]:
*** empty log message ***

1988-12-05 Guillermo J. Rozas <[email protected]>

* runtime/Attic/syntax.scm[14.7]:
Add a list? check to syntax-expression and some paranoia to syntax-sequence.

1988-12-02 Chris Hanson <[email protected]>

* compiler/base/contin.scm[4.5.1.1], compiler/base/lvalue.scm[4.7.1.1],
compiler/fgopt/envopt.scm[1.1.1.1]:
*** empty log message ***

1988-12-01 Chris Hanson <[email protected]>

* compiler/base/object.scm[4.3.1.1],
compiler/fggen/fggen.scm[4.11.1.1],
compiler/fgopt/blktyp.scm[4.5.1.1],
compiler/rtlgen/opncod.scm[4.22.1.1],
compiler/rtlgen/rgretn.scm[4.8.1.1]:
*** empty log message ***

1988-11-30 Chris Hanson <[email protected]>

* compiler/base/blocks.scm[4.4.1.1], compiler/base/ctypes.scm[4.6.1.1],
compiler/base/proced.scm[4.6.1.1], compiler/base/rvalue.scm[4.3.1.1],
compiler/base/subprb.scm[4.3.1.1],
compiler/rtlgen/fndblk.scm[4.9.1.1],
compiler/rtlgen/rgproc.scm[4.5.1.1],
compiler/rtlgen/rgrval.scm[4.11.1.1],
compiler/rtlgen/rgstmt.scm[4.8.1.1]:
*** empty log message ***

1988-11-29 Chris Hanson <[email protected]>

* compiler/base/utils.scm[4.6.1.1], compiler/fgopt/closan.scm[4.4.1.1],
compiler/fgopt/order.scm[4.9.1.1],
compiler/machines/bobcat/compiler.pkg[1.11.1.1],
compiler/rtlgen/rgcomb.scm[4.8.1.1]:
*** empty log message ***

1988-11-17 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.31]:
Fix a bug in blktyp, and allow envopt to keep data structures when desired.

* compiler/fgopt/blktyp.scm[4.6]:
1) Integrated parameters are filtered before we design the closure
block. This fixes a bug by which closures with no free variables were
created.

2) Add paranoia checks to make sure that a trivial closure remains
trivial after its closure block is computed. This is important
because if it was previously considered trivial, it may already have
been integrated into some other closure. This check would have caught
the bug fixed in 1.

* compiler/fgopt/envopt.scm[1.2]:
free callers and callees lists are preserved if
compiler:preserve-data-structures? is true.

1988-11-15 Guillermo J. Rozas <[email protected]>

* compiler/base/lvalue.scm[4.8], compiler/base/utils.scm[4.7],
compiler/fggen/declar.scm[1.4], compiler/fgopt/folcon.scm[4.4],
compiler/fgopt/outer.scm[4.4],
compiler/machines/bobcat/make.scm-68040[4.30]:
Improve constant folding:
- Mutable objects can now be known values of variables, although
operations will not be open coded over them.
- The outer analysis has been changed to have passed-out and passed-in
counters rather than flags. In this way it is easy to recompute their
values value after an operation has been constant folded, and decide
whether further propagation can occur or not.
- Non-primitive operations can now be constant folded. There is a new
declaration: USUAL-DEFINITION which allows the variables to which it
applies to be constant folded to their usual (global) definition.
Examples of this are ATAN, GCD, etc.
- Fix bug in base/utils.scm by which temporary label names were being
interned. This would cause the compiler to run out of storage after
many compilations.

1988-11-12 Chris Hanson <[email protected]>

* runtime/version.scm[14.29]:
Add `flush-output' operation to file output ports. This change
requires microcode 10.63 or later.

* microcode/pruxfs.c[9.33], microcode/version.h[10.63]:
Rewrite unix file opening code to be really careful about what kinds
of files can be opened, and how. As of now, only regular files and
character special files are allowed; symbolic links are detected when
opening output files and deleted, thus overwriting the link rather
than writing through it.

Implement new primitive `file-flush-output' which is needed since we
changed file I/O to use buffered stdio some time ago.

1988-11-10 Guillermo J. Rozas <[email protected]>

* microcode/interp.c[9.47], microcode/version.h[10.62]:
Fix self evaluation of compiled entries which are not compiled
expressions.

1988-11-09 Chris Hanson <[email protected]>

* compiler/Attic/Makefile[1.5]:
Change to use `for' loop on subdirectories.

1988-11-08 Chris Hanson <[email protected]>

* compiler/machines/bobcat/lapgen.scm[4.18],
compiler/machines/bobcat/rules3.scm[4.14]:
Generalize rule for `cons-closure' so that it handles more types of
target expressions.

* compiler/machines/bobcat/dassm2.scm[4.10],
compiler/machines/bobcat/machin.scm[4.13],
compiler/machines/bobcat/make.scm-68040[4.29],
compiler/machines/bobcat/rules3.scm[4.13],
compiler/rtlbase/rtlexp.scm[4.10], compiler/rtlbase/rtlty1.scm[4.13],
compiler/rtlbase/rtlty2.scm[4.6], compiler/rtlgen/rgproc.scm[4.5],
compiler/rtlgen/rgrval.scm[4.11], compiler/rtlopt/rcse1.scm[4.15]:
Change `cons-closure' from a statement to an expression. This allows
us more freedom in choosing the target register.

* microcode/comutl.c[1.14], microcode/version.h[10.61]:
Add new primitive, `compiled-closure->entry'.

* compiler/etc/stackp.scm[1.4]:
(rcd): Fix case where there is no error continuation. Allow
specification of continuation without filename.

* runtime/udata.scm[14.5], runtime/unpars.scm[14.9],
runtime/version.scm[14.28]:
Add new primitive `compiled-closure->entry', and new predicate
`compiled-closure?'. Change the unparser to print compiled code
entries differently, showing their offset and absolute address for
better debugging. Closures show this information for their entry
point, and additionally show the address of the closure itself.

1988-11-08 Guillermo J. Rozas <[email protected]>

* compiler/base/utils.scm[4.6]:
Add fix:<mumble> to the list of constant-foldable-primitives.

1988-11-07 Chris Hanson <[email protected]>

* compiler/back/lapgn1.scm[4.6]:
Kill dead registers when not doing control merge.

* compiler/back/mermap.scm[1.2]:
Fix incorrect reference.

* compiler/back/regmap.scm[4.7]:
Fix unbound variable bug. Delete unused variable.

* compiler/back/lapgn1.scm[4.5]:
Substantial rewrite of code that computes register map of a basic
block with multiple "previous" edges. The algorithm is roughly as
follows:

* Wait until all of the "previous" nodes have been generated. This
depends on the absence of explicit loops in the graph, and will
require some rethinking when we introduce these loops.

* Compute a "weighted average" register map (the target map) from the
maps of the "previous" nodes. This is a heuristic computation, but it
seems to have about the right effect for simple cases.

* Separate the "previous" maps into equivalence classes, where all the
maps in an equivalence class can be converted to the target map with
an identical sequence of instructions. This could be made
substantially more sophisticated, but for now it will do.

* For each edge, insert code to coerce the "previous" map into the
target map. Heed the equivalence classes that were just computed, and
causes all maps in a given equivalence class to share a single code
sequence.

* compiler/machines/bobcat/compiler.pkg[1.11]:
Add new file: "back/mermap".

* compiler/back/lapgn2.scm[1.9]:
(delete-dead-registers!): Rewrite to accomodate change to
`delete-pseudo-registers'.

* compiler/rtlbase/rtlcfg.scm[4.6]:
(bblock-compress!): when counting previous edges to determine if this
is the beginning of a basic block, we must include edges which have no
left node.

* compiler/back/regmap.scm[4.6]:
Fix bugs in previously unused `coerce-map-instructions'. Add new
procedures `register-map:keep-live-registers' and `map-equal?'.

* compiler/machines/bobcat/decls.scm[4.16]:
Add dependency for new file: "back/mermap".

1988-11-06 Chris Hanson <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.28]:
Improve generic arithmetic by adding branch preferences to type,
range, and overflow tests. These preferences cause the linearizer to
attempt to optimize for the preferred branch.

* compiler/machines/bobcat/compiler.pkg[1.10]:
Export switches to global environment.

* compiler/back/linear.scm[4.7], compiler/rtlbase/rtline.scm[4.8]:
Heed branch preferences when deciding which branch to generate in line.

* compiler/rtlgen/opncod.scm[4.22]:
Specify branch preferences for things like type, range, and overflow
checks; the linearizer will heed these when making decisions about
which branch falls through. Recode string operations to do type and
range checks if these are enabled.

* compiler/rtlbase/rtlcfg.scm[4.5]:
Add operations to allow specification of branch preference in pblocks.

1988-11-06 Guillermo J. Rozas <[email protected]>

* compiler/fgopt/folcon.scm[4.3]:
An lvalue whose only backward link is itself may be known.
This is a patch. General loops should work as well.

1988-11-05 Chris Hanson <[email protected]>

* compiler/machines/bobcat/decls.scm[4.15]:
"machines/bobcat/dassm1" now uses the compiler syntax table.

* compiler/machines/bobcat/dassm1.scm[4.9]:
Fix unbound variable error.

* sf/subst.scm[4.4]:
Efficiency improvement to last change.

* runtime/version.scm[14.27]:
*** empty log message ***

* compiler/rtlgen/opncod.scm[4.21]:
Last change was a little too ambitious. Back off a bit.

* compiler/rtlopt/rcse1.scm[4.14]:
Must adjust stack pointer for special primitive invocations.

1988-11-04 Chris Hanson <[email protected]>

* compiler/rtlgen/opncod.scm[4.20]:
Change code generation for `&=' to significantly improve output code.
Many minor editing changes also.

* compiler/machines/bobcat/rules1.scm[4.18]:
Fix typo introduced in last changes.

* compiler/machines/bobcat/rules1.scm[4.17]:
Patch up several rules to capture common abstractions. Add a couple
of new rules which are conglomerates of existing rules, and which can
be more efficiently generated as a unit.

* compiler/rtlgen/opncod.scm[4.19], compiler/rtlgen/opncod.scm[4.18]:
Add declarations to eliminate "unreferenced bound variable" warnings.

* compiler/machines/bobcat/lapgen.scm[4.17]:
Define procedures to capture the object->{type,datum,address}
conversions.

* compiler/rtlgen/opncod.scm[4.17], compiler/rtlgen/rgcomb.scm[4.8],
compiler/rtlgen/rgretn.scm[4.8], compiler/rtlgen/rgrval.scm[4.10],
compiler/rtlgen/rgstmt.scm[4.8]:
Define new procedure `load-temporary-register' which abstracts the
idea of loading a temporary with the value of some expression, and
then using the temporary for something. This is important because of
the timing problems associated with `rtl:make-assignment'. Most
usages of the latter are now translated into usages of the new
procedure.

* compiler/rtlbase/rtlcon.scm[4.15]:
Delete random definition of `rtl:make-address->fixnum'. This was a
duplicate definition, but what is worse, it caused incorrect code to
be generated. This happened because `object->fixnum' gets elided in
certain places, in particular the places where `address->fixnum' is
used.

* compiler/machines/bobcat/lapgen.scm[4.16]:
Conversion of a fixnum to an address must be a logical right shift,
not an arithmetic right shift. This is because an address is an
unsigned quantity; thus a fixnum representing an address must also be
treated as unsigned.

1988-11-04 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/compiler.pkg[1.9],
compiler/machines/bobcat/dassm1.scm[4.8],
compiler/machines/bobcat/dassm2.scm[4.9]:
Rename disassembler/write-compiled-entry to compiler:disassemble,
export it to the global package, and add some cleverness about
printing linkage sections.

1988-11-03 Chris Hanson <[email protected]>

* compiler/machines/bobcat/decls.scm[4.14]:
Don't run second pass unless there are some circularly dependent files
being resyntaxed.

* microcode/pruxfs.c[9.32], microcode/version.h[10.60]:
Don't use the `utime()' or `utimes()' system calls to touch files,
because they are subject to clock skew problems when used on remote
NFS files. Also, add check for file type to file touching code.

* compiler/machines/bobcat/decls.scm[4.13]:
*** empty log message ***

* compiler/machines/bobcat/decls.scm[4.12]:
Echo file deletions, and show passes.

* compiler/machines/bobcat/decls.scm[4.11]:
Echo message informing user when files are being touched. Fix big:
was touching file with no type! Must touch files that SF outputs.
Always touch .bin file, conditionally touch .ext and .unf files.

* compiler/machines/bobcat/lapgen.scm[4.15]:
Redefine `invert-cc-noncommutative'. This was originally designed to
be like `invert-cc'. However, it is used to adjust the condition code
for the situation of reversing the arguments to a conditional, while
`invert-cc' is used to adjust for reversing the branches. These are
quite different.

* compiler/rtlopt/rcse1.scm[4.13]:
Because special primitive invocations may now have `next' nodes, it is
necessary to invalidate at least the value register and free pointer.
Perhaps we need to invalidate other things as well?

* compiler/machines/bobcat/machin.scm[4.12]:
Define these procedures:
interpreter-value-register
interpreter-environment-register
interpreter-environment-register?

* compiler/machines/bobcat/decls.scm[4.10]:
Reset the set of source nodes whenever the compiler band is reloaded.
This should help prevent problems with non-existent files. Also,
during second pass to resyntax files that have circular dependencies,
touch the dependents that have been syntaxed in the first pass, so
that they have the proper time relationships to the resyntaxed files.

1988-11-02 Chris Hanson <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.27]:
Eliminate random unreferenced labels from RTL and LAP output.
Eliminate dead branches to continuations. Implement declarations to
disable detection of traps in cached variable references and
assignments.

* compiler/machines/bobcat/lapgen.scm[4.14]:
(reference->register-transfer): When source was an address register
this compared it to target, succeeding when target was a data
register.

* compiler/fggen/declar.scm[1.3]:
Use definition of `compiler:default-top-level-declarations'. Add new
class of variables: `assigned'. Add two new declarations:
`ignore-assignment-traps' and `ignore-reference-traps'.

* compiler/base/switch.scm[4.9]:
Add definition of `compiler:default-top-level-declarations', used by
declaration processor. This is used to force defaults, and may also
be fluid bound to provide special defaults.

* compiler/rtlbase/rgraph.scm[4.4]:
Redefine `add-rgraph-entry-node!' to be `add-rgraph-entry-edge!',
because the caller needs an edge to that node, and we wish to avoid
creation of duplicate edges.

* compiler/back/linear.scm[4.6], compiler/rtlbase/rtline.scm[4.7]:
Be more careful when `sblock-continuation' is known. If the
continuation has already been generated, we were previously generating
a jump to the continuation at this point. This jump was dead code
because nobody referenced it.

* compiler/rtlgen/rgrval.scm[4.9]:
Implement `ignore-reference-traps' declaration on free variables.

* compiler/rtlgen/rgstmt.scm[4.7]:
Implement `ignore-assignment-traps' declaration on free variables.

* compiler/rtlgen/rtlgen.scm[4.11]:
(generate/rgraph): Make only a single edge for the entry of each
rgraph. This is important because the linearizer looks at the number
of edges to determine when labels are needed.

1988-11-02 Guillermo J. Rozas <[email protected]>

* runtime/unpars.scm[14.8]:
Fix bug by which attempting to print a bogus object would kill Scheme.
It now prints #[UNDEFINED-TYPE:<n> <datum>] and does NOT hash the object.

1988-11-01 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/rules3.scm[4.12]:
Fix missing label bug. OPEN-PROCEDURE-HEADERS define both the
internal and external entry points always.

* compiler/base/blocks.scm[4.4], compiler/base/ctypes.scm[4.6],
compiler/base/lvalue.scm[4.7], compiler/base/macros.scm[4.7],
compiler/base/proced.scm[4.6], compiler/base/switch.scm[4.8],
compiler/base/toplev.scm[4.11], compiler/fggen/canon.scm[1.3],
compiler/fggen/fggen.scm[4.11], compiler/fgopt/blktyp.scm[4.5],
compiler/fgopt/closan.scm[4.4], compiler/fgopt/offset.scm[4.5],
compiler/fgopt/order.scm[4.9],
compiler/machines/bobcat/compiler.pkg[1.8],
compiler/machines/bobcat/compiler.sf[1.6],
compiler/machines/bobcat/dassm2.scm[4.8],
compiler/machines/bobcat/decls.scm[4.9],
compiler/machines/bobcat/make.scm-68040[4.26],
compiler/machines/bobcat/rules3.scm[4.11],
compiler/rtlbase/rtlexp.scm[4.9], compiler/rtlbase/rtlty1.scm[4.12],
compiler/rtlgen/fndblk.scm[4.9], compiler/rtlgen/opncod.scm[4.16],
compiler/rtlgen/rgcomb.scm[4.7], compiler/rtlgen/rgproc.scm[4.4],
compiler/rtlgen/rgrval.scm[4.8], compiler/rtlopt/rcse1.scm[4.12]:
- "Self consistent closing": A group of procedures whose only free
variables represent each other will be represented as trivial closures
that reference each other by direct pc offsets.

- Known trivial closure variables are now integrated.

- Similar procedures used in operator position may not be closed.
There is a notion of a virtual closure: A closure whose environment is
known, but whose code pointer is not.

- Procedures now remember why they were closed.

- Once-only assignments to top-level or completely free variables are
done with local-assignment rather than with assignment caches.

- Variuos fixes to the closure analysis. Lambda expressions in
operand position are closed only if they are escaping their context.
This was broken when the uniform closing strategy (all closures close
to the top) was introduced in the front end.

1988-10-30 Guillermo J. Rozas <[email protected]>

* sf/pardec.scm[4.2], sf/sf.pkg[4.3], sf/toplev.scm[4.3]:
Add sf/usual-integrations-default-deletions.

1988-10-29 Chris Hanson <[email protected]>

* runtime/defstr.scm[14.3], runtime/lambda.scm[14.3],
runtime/make.scm[14.5], runtime/packag.scm[14.5],
runtime/pathnm.scm[14.2], runtime/rep.scm[14.8],
runtime/runtime.pkg[14.22], runtime/version.scm[14.26]:
Change `define-structure' macro to handle `named' option better,
allowing it to be a constant which is used as the tag. This allows
redefinition of several structures in the runtime system, making them
fasdumpable. Change handling of packages to attach a package to its
environment if that environment is not already attached to another
package. Change the rep loop to show this package name when the
package is changed; also add command `pe' to return the current
package.

* sf/make.scm[4.6], sf/sf.pkg[4.2], sf/sf.sf[4.3], sf/toplev.scm[4.2],
sf/usiexp.scm[4.2], sf/xform.scm[4.2]:
Add expansion rules for predicates like `vector?', `char?', etc. that
expand into code that the compiler can open code pretty well. Add new
global variables `sf/default-syntax-table' and
`sf/top-level-definitions', the latter being a list of names which
should not be treated specially by `usual-integrations'.

1988-10-29 Guillermo J. Rozas <[email protected]>

* compiler/Attic/Makefile[1.4]:
Add stage3 and merge with markf's makefile.

1988-10-28 Chris Hanson <[email protected]>

* cref/cref.pkg[1.2], cref/make.scm[1.3], cref/object.scm[1.2],
cref/redpkg.scm[1.2]:
Several changes to make package model objects fasdumpable.

1988-10-28 Mark Friedman <[email protected]>

* compiler/machines/bobcat/lapgen.scm[4.13]:
Fixed bug when multiplying a number by itself.

1988-10-27 Chris Hanson <[email protected]>

* compiler/etc/stackp.scm[1.3]:
Don't forget to output the return codes with their frames.

* microcode/debug.c[9.31], microcode/version.h[10.59]:
More debugging support.

1988-10-26 Chris Hanson <[email protected]>

* microcode/debug.c[9.30], microcode/version.h[10.58]:
Add several new entries to support debugging of compiled code.

* microcode/returns.h[9.34]:
Adjust `RETURN_NAME_TABLE' to contain all current return address
names; some were missing.

* compiler/etc/stackp.scm[1.2]:
Update for new runtime system. Much simpler now that stack parser
does most of the work.

* microcode/version.h[10.57]:
(compiled_entry_to_block): `suba.w' instruction sign extends its first
argument, which in this case is exactly the wrong thing. Rewrite this
to zero extend the 16 bit offset.

1988-10-26 Mark Friedman <[email protected]>

* compiler/rtlgen/rtlgen.scm[4.10]:
Merged 4.9 with 4.8.1.2.

1988-10-25 Chris Hanson <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.23.1.4]:
Continuation can still be sometimes known even when it is passed out.
This was causing bug where continuation was "never known", but because
the return application knew it, it was assuming "sometimes known".

1988-10-24 Chris Hanson <[email protected]>

* compiler/fgopt/operan.scm[4.4]:
Continuation can still be sometimes known even when it is passed out.
This was causing bug where continuation was "never known", but because
the return application knew it, it was assuming "sometimes known".

1988-10-21 Arthur Gleckler <[email protected]>

* compiler/rtlbase/rtlcon.scm[4.14]:
Two copies of the copyright message at beginning of file; removed one.

* compiler/machines/bobcat/rules1.scm[4.16]:
Removed extra copyright message; had two copies of it at the beginning of the
file.

1988-10-21 Chris Hanson <[email protected]>

* runtime/unxdir.scm[14.3], runtime/version.scm[14.25]:
Change directory reader to default the name/type/version to WILD, and
to be faster for that default case. Also add optional second argument
to disable sorting of output. These changes combine to give a fairly
fast interface to the underlying directory reader.

* runtime/unpars.scm[14.7]:
If slashification is turned off, it is still necessary to slashify
non-ASCII characters because the output port probably won't have any
representation for them.

* microcode/boot.c[9.53], microcode/version.h[10.56]:
Make sure that TERM_SIGNAL control variables are initialized correctly
even when `dump-world' or job control is used. Also, force control-g
synchronization under Emacs for all unix operating systems.

* runtime/version.scm[14.24]:
Several changes to make unix signals work right.

* runtime/intrpt.scm[14.3]:
Change this code to use the new `clear-interrupts!' primitive to
disable interrupt bits when the interrupt handlers are invoked.

* runtime/savres.scm[14.6]:
(disk-save): Unless IDENTIFY is a string, return a boolean value.

* runtime/savres.scm[14.5]:
Fix bug in `disk-save': when the IDENTIFY argument is #F, we should
return #F just after the save, and #T after a restore.

* microcode/boot.c[9.52], microcode/dmpwrld.c[9.28],
microcode/hooks.c[9.33], microcode/sysprim.c[9.31],
microcode/version.h[10.55]:
Fix some problems with unix signals: (1) Emacs uses SIGHUP to kill a
process when its buffer is killed, so treat SIGHUP differently if
under Emacs -- also don't print messages in this case as the buffer is
dead; (2) don't ask for core dump if signal received.

Also define new primitive `clear-interrupts!'; change
`get-next-interrupt-character' and `setup-timer-interrupt' so they
don't clear the interrupt bit. It is now the responsibility of the
runtime system to clear the bit when it gets the interrupt.

1988-10-21 Mark Friedman <[email protected]>

* compiler/rtlopt/rcse1.scm[4.11.1.1]:
Added method for OVERFLOW-TEST in support of generic arithmetic.

1988-10-20 Chris Hanson <[email protected]>

* microcode/pruxfs.c[9.31], microcode/version.h[10.54]:
Improved version of `file-touch' is smarter, will win in more cases
than previous version.

1988-10-20 Mark Friedman <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.25]:
Another stab at open coded generic arithmetic (stiil no floating point yet).

* compiler/rtlbase/rtlexp.scm[4.8.1.1]:
Added FIXNUM->ADDRESS and ADDRESS->FIXNUM as non-object-valued-expressions.

* compiler/base/toplev.scm[4.10]:
Transferred version 4.8.1.1 onto the main trunk, essentially undoing
4.9 because we no longer use an expansion phase.

* compiler/machines/bobcat/rules2.scm[4.6]:
Added rule for OVERFLOW-TEST in support of generic arithmetic.

* compiler/machines/bobcat/rules1.scm[4.15]:
Changed a bunch of fixnum procedures. Fixnums are now shifted 8 bit to
the left before the operations (except multiply, where only one of the
operands is shifted) so that overflow detection gets done
automatically by the hardware.
Also fixed a bug in the fixnum register*register rule which was
manifested when the two source registers were the same and we could
alias them with the target.

* compiler/rtlbase/rtlty1.scm[4.11]:
Added generic arithmetic rtl types and overflow-test predicate.
Added fixnum->address and address->fixnum since we have changed the
way fixnum's are handled (i.e. we shift them to the left by 8 bits now).
Removed rtl-constructor stuff since we don't have the expand phase anymore.

* compiler/rtlgen/rtlgen.scm[4.9]:
In the open coding of generic arithmetic it is possible to create some
cfg node which are in the rtl-graph but turn out not to be reachable
from the entry edge of the rtl-graph (this happens when we are
creating a pcfg for a type test but the object we are testing is a
constant, for example). We need to make sure that rgraph/compress!
removes these unreachable cfg nodes, because there are some algorithms
which depened on all of node's predecessors being on a path from an
entry edge of the rtl-graph.

* compiler/rtlbase/rtlcon.scm[4.13]:
Added expression methods for generic arithmetic RTL types.

* compiler/rtlgen/opncod.scm[4.15]:
Fixed bugs in generic arithmetic open coding.

* compiler/machines/bobcat/lapgen.scm[4.12]:
Changed a bunch of fixnum procedures. Fixnums are now shifted 8 bit to
the left before the operations (except multiply, where only one of the
operands is shifted) so that overflow detection gets done
automatically by the hardware.

* compiler/machines/bobcat/instr2.scm[1.16]:
fixed shift intructions with dynamic bit counts.

* compiler/base/cfg3.scm[4.2]:
fixed pcfg*scfg->cfg!

1988-10-19 Chris Hanson <[email protected]>

* compiler/Attic/Makefile[1.3]:
Use /. suffix on directory names that are targets of mv commands.

1988-10-17 Chris Hanson <[email protected]>

* runtime/unxpth.scm[14.2]:
Add most remaining unix primitives, including new `file-touch'.

* microcode/pruxfs.c[9.30], microcode/version.h[10.53]:
Add new primitive `file-touch'.

1988-10-15 Chris Hanson <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.23.1.3],
compiler/machines/bobcat/rules3.scm[4.10.1.1]:
Add missing rule for `invocation-prefix:dynamic-link'.

* runtime/char.scm[14.2], runtime/parse.scm[14.5],
runtime/string.scm[14.2], runtime/strott.scm[14.3],
runtime/strout.scm[14.3], runtime/unpars.scm[14.6],
runtime/version.scm[14.23]:
Change `char->string' to `string'. `char->string' still defined as
alias.

1988-10-13 Chris Hanson <[email protected]>

* runtime/version.scm[14.22]:
*** empty log message ***

* compiler/base/contin.scm[4.5],
compiler/machines/bobcat/make.scm-68040[4.23.1.2],
compiler/rtlgen/rgstmt.scm[4.6], compiler/rtlgen/rtlgen.scm[4.8.1.2]:
When dynamic link is in use, it must be pushed even if the
continuation is always known.

1988-10-12 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.21]:
Make pathname parser/unparser packages inherit from pathname package.

* runtime/runtime.sf[14.2], sf/sf.sf[4.2]:
Add code to load the package modeller if needed.

* runtime/runtime.pkg[14.20]:
Hide these definitions from the global environment:

parse-pathname
pathname-unparse
pathname-unparse-name

1988-10-07 Chris Hanson <[email protected]>

* runtime/debug.scm[14.5]:
Fix bug in `h' command when first subproblem had wraparound in
reductions.

* runtime/runtime.pkg[14.19]:
Export `reduce-right' to the global environment.

* runtime/list.scm[14.4]:
Rename `reduce-reversed' to `reduce-right'.

1988-10-06 Chris Hanson <[email protected]>

* runtime/list.scm[14.3]:
Redefine `reduce' to perform its reduction in a manner compatible with
Common Lisp. Define `reduce-reversed' to perform a right-associative
reduction.

1988-10-06 Guillermo J. Rozas <[email protected]>

* microcode/pruxfs.c[9.29]:
Add a SYSTEM primitive which invokes a shell to execute a command.
Add documentation strings to the primitives in this file.

1988-10-04 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/instr3.scm[1.16]:
Add missing clause to instr3.scm

* compiler/fgopt/order.scm[4.8]:
Make wrong number of arguments errors proceedable. Extra arguments
are dropped, arguments not present are defaulted to unassigned.

* microcode/fasdump.c[9.41]:
Make DUMP-BAND always dump from the low heap so that the probability
of falling on the same addresses (and avoiding relocation) on restore
increases.

1988-10-03 Guillermo J. Rozas <[email protected]>

* compiler/fgopt/order.scm[4.7]:
Fix 2 bugs:
- Known procedures (which are not always known operators) with
optional parameters have their values defaulted at the call point in
the known locations.
- Known lexpr trivial closures are invoked as closures.

1988-09-29 Guillermo J. Rozas <[email protected]>

* microcode/boot.c[9.51], microcode/fasload.c[9.38],
microcode/fhooks.c[9.29], microcode/interp.c[9.46],
microcode/locks.h[9.23], microcode/lookprm.c[1.3],
microcode/lookup.c[9.41], microcode/lookup.h[9.41],
microcode/utils.c[9.39], microcode/version.h[10.52]:
Numerous changes:

- Incremental definition recaches compiled code caches rather than
uncaching them and having them be recached at first reference.

- Bands are not relocated if there is no need.

- Suggestions for size parameters are printed if the image is too large.

- cmp68020.s now works with m4 on sysV and bsd.

- -recover is a new command line option which informs the microcode
that it should attempt recovery immediately after a trap, rather than
prompting for confirmation.

- Fixed some bugs having to do with deep dynamic binding.

1988-09-27 Chris Hanson <[email protected]>

* microcode/findprim.c[9.35]:
Fix quoting within documentation strings.

* microcode/extern.c[9.28]:
Add \n\ sequences to multiline document strings.

1988-09-22 Joe Marshall <[email protected]>

* sf/subst.scm[4.3]:
(force (delay x)) ==> x (new optimization)

1988-09-15 Chris Hanson <[email protected]>

* compiler/back/linear.scm[4.5], compiler/rtlbase/rtline.scm[4.6]:
Tuning to increase performance.

* compiler/back/linear.scm[4.4], compiler/rtlbase/rtline.scm[4.5]:
Label basic blocks that have multiple previous edges, even if those
edges do not have nodes attached to them. Also reorganized to
guarantee that the labelling side effects are ordered correctly.

* compiler/machines/bobcat/decls.scm[4.6.1.2]:
Tell the user why each file is being syntaxed.

* compiler/machines/bobcat/make.scm-68040[4.23.1.1]:
When determining whether an lvalue has a known value, backward links
to the lvalue itself must be ignored.

If the continuation of a combination is always known, do not record it
as the invocation continuation. This is because the object will not
exist, and thus its label will never be defined.

Must generate assignment to continuation's register for continuations
whose type is `PREDICATE', if they are ever known operators.

* runtime/system.scm[14.5], runtime/version.scm[14.21]:
Allow strings and lists for version numbers in systems.

1988-09-14 Chris Hanson <[email protected]>

* compiler/fgopt/folcon.scm[4.2.1.1]:
When determining whether an lvalue has a known value, backward links
to the lvalue itself must be ignored.

* compiler/rtlgen/rgcomb.scm[4.6]:
If the continuation of a combination is always known, do not record it
as the invocation continuation. This is because the object will not
exist, and thus its label will never be defined.

* compiler/rtlgen/rtlgen.scm[4.8.1.1]:
Must generate assignment to continuation's register for continuations
whose type is `PREDICATE', if they are ever known operators.

1988-09-07 Chris Hanson <[email protected]>

* compiler/rtlopt/ralloc.scm[1.16]:
Remove code to delete basic blocks list from rgraphs. This is now
handled by the compiler top level.

* compiler/back/linear.scm[4.3], compiler/base/toplev.scm[4.8.1.1],
compiler/machines/bobcat/compiler.pkg[1.6.1.1],
compiler/rtlbase/rtline.scm[4.4]:
Add new analysis to determine how RTL basic blocks are related by
continuations. Attempt to order the linearized RTL and LAP so that
continuations come out nearer to where they are referenced. A unique
continuation (very common) tries to come out immediately following the
invocation of the procedure that returns to it.

* compiler/rtlbase/rtlcfg.scm[4.4]:
Add new slots to descriptor lists of basic blocks.

1988-09-02 Chris Hanson <[email protected]>

* microcode/generic.c[9.29], microcode/version.h[10.51]:
Change `/' operation to return an exact integer result when the
arguments are both exact integers, and the second argument divides the
first. Otherwise a flonum is returned.

1988-09-02 Mark Friedman <[email protected]>

* compiler/base/switch.scm[4.7]:
Added switch to control generation of open coded type checking.

* compiler/rtlbase/rtlexp.scm[4.8]:
Fixed rtl:expand-statement (you gotta be careful with "reverse!"!)

1988-09-01 Mark Friedman <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.24]:
Added open coding of generic arithmetic (without open-coding of
floating point, though the stubs are there).

* compiler/machines/bobcat/decls.scm[4.8]:
Merged generic stuff with version 4.6.1.1

* compiler/rtlbase/rtlty1.scm[4.10]:
Merged generic stuff with version 4.7.1.1

* compiler/rtlgen/opncod.scm[4.14]:
Fixed some generic arithmetic stuff and merged back with version 4.10.

1988-08-31 Chris Hanson <[email protected]>

* compiler/rtlbase/rtlcfg.scm[4.3]:
Add slots to bblock structure to facilitate better linearization.

* compiler/machines/bobcat/decls.scm[4.6.1.1]:
Change `syntax-files!' to delete the ".ext" files of the nodes it has
decided to resyntax, before doing anything else. Then, resyntax the
nodes with circular _after_ resyntaxing all the nodes once in the
usual dependency order. This order of events should guarantee that no
old integrations are around, and should also guarantee that the
circularly dependent nodes are syntaxed once while all their
dependencies exist.

* compiler/machines/bobcat/compiler.sf[1.5]:
Add comments and copyright. Separate out loading of assembler
database so that it can be easily evaluated in a working compiler
band. Attempt to reorganize so that this file can be loaded into a
working compiler and have the right effect.

* compiler/machines/bobcat/make.scm-68040[4.23]:
Change back end of compiler to not join bit strings that will be
adjacent in the output code. This loses slightly on space but avoids
costly bit string copying.

Also extend RTL constructors to handle `offset' locative with constant
base address.

* compiler/back/syntax.scm[1.22]:
Change `cons-syntax' and `append-syntax!' so that they do not attempt
to join bit strings, but just cons them together into lists. This
will improve the speed of compilation with a small increase in space.

* compiler/back/syerly.scm[1.7]:
Change expander for `instruction->instruction-sequence' to use the
primitive `cons' rather than an absolute reference to that name.

* compiler/back/insseq.scm[4.2]:
Change `append-instruction-sequences!' so that it does not attempt to
join two bit strings that are adjacent in the resulting sequence. The
compiler spends alot of time joining such bit strings, with only small
space savings.

* compiler/Attic/Makefile[1.2]:
Change rule for `locked' to check top level directory, and to use
definition of `SOURCES' macro.

* compiler/machines/bobcat/inerly.scm[1.6]:
Change `define-ea-database' macro to side effect the variable
`early-ea-database' rather than defining it. Define this variable
separately so that cref can see it.

* compiler/machines/bobcat/coerce.scm[1.10]:
Remove references to `define-coercion'. Use explicit definition which
will prevent cref from having undefined references.

* compiler/machines/bobcat/assmd.scm[1.35]:
Make sure that the constant parts of this file are integrated as
constants in the rest of the compiler.

* compiler/rtlbase/rtlcon.scm[4.12]:
Handle case where base address of an `offset' locative is a constant.

1988-08-30 Chris Hanson <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.22]:
Many changes to improve code at both RTL and LAP levels. Major
highlights: improved handling of continuations that are sometimes
known; improved instruction combination algorithm; better register
spilling in LAP generator; better handling of registers for fixnum
operations.

* compiler/rtlopt/rcompr.scm[1.7]:
Teach how to combine stack references.

1988-08-29 Chris Hanson <[email protected]>

* compiler/rtlopt/rcompr.scm[1.6]:
Rewrite this pass to be a more powerful instruction combiner. This is
still not a general solution, but now it is smart about moving the
value register and constant expressions over multiple instructions.

* compiler/rtlopt/rcseht.scm[4.6]:
Redefine expression-cost computation to be mostly machine independent.

* compiler/rtlopt/rcseep.scm[4.5]:
Flush `expression-non-object?' since that is now defined elsewhere.

* compiler/rtlgen/rtlgen.scm[4.8]:
Fix stupid bug involving missing call to `scfg*scfg->scfg!'.

* compiler/rtlgen/rgretn.scm[4.7]:
Must not pop return address unless it has been pushed.

* compiler/rtlbase/rtlexp.scm[4.7]:
Merge concepts of `address' and `fixnum' register into `non-object'
register. Implement operations to detect substitutable register
within a given expression, and to substitute subexpressions for those
registers. Implement predicate to determine if an expression is
constant. All of these new operations are used by the improved
register combiner.

Simplify `rtl:trivial-expression?' by disallowing stack references.
This causes some inefficiencies that must be corrected elsewhere, but
reveals more intermediate values to the CSE.

* compiler/rtlbase/rgraph.scm[4.3], compiler/rtlbase/rtlcon.scm[4.11],
compiler/rtlbase/rtlreg.scm[4.4], compiler/rtlopt/rcse2.scm[4.10]:
Merge concepts of `address' and `fixnum' register into `non-object'
register.

* compiler/machines/bobcat/rules4.scm[4.4]:
Change references to `coerce->any' into calls to
`standard-register-reference'.

* compiler/machines/bobcat/rules3.scm[4.10]:
Use `move-to-temporary-register!' to correctly reuse a data register
for a particular rule. Previously was doing something ad hoc.

* compiler/machines/bobcat/rules1.scm[4.14],
compiler/machines/bobcat/rules2.scm[4.5]:
Many many changes.

* compiler/machines/bobcat/machin.scm[4.11]:
Define fixnum constant limits more carefully. Redefine expression
cost computation -- most is now machine-independent. Change
`address-register' concept to be `non-object-register'. Delete
`pseudo-register=?'. Define `interpreter-value-register?'.

* compiler/machines/bobcat/lapgen.scm[4.11]:
Too many changes to list them all. See the code.

* compiler/machines/bobcat/dassm3.scm[4.6]:
Fix order of events bug in disassembly of bit field instructions.

* compiler/base/debug.scm[4.7]:
Change names of two state variables for `show-fg', because one of them
conflicted with another variable in the compiler package.

* compiler/back/regmap.scm[4.5]:
Force register allocator to reuse registers on an LRU basis.
Previously it was somewhat random, and usually MRU. Teach the
allocator to spill values to registers of other types when allocating
a register of a particular type. This often wins grossly on the
68020. Also implement predicates to determine whether particular
aliases have unique values.

* compiler/back/lapgn2.scm[1.8]:
Many changes. Add documentation comments to most of the procedures in
this file. Improve functionality of existing procedures in a variety
of ways, and add new procedures to implement new functionality.

* compiler/back/lapgn1.scm[4.4]:
Break out procedure to pattern match RTL against rules database. This
procedure can be used as a predicate by the RTL optimizer to determine
if particular instructions are valid. In particular, this is used by
the instruction combiner.

1988-08-29 Mark Friedman <[email protected]>

* compiler/rtlgen/opncod.scm[4.13]:
No change. made a mistake.

1988-08-26 Joe Marshall <[email protected]>

* runtime/version.scm[14.20]:
fix named let

* runtime/Attic/syntax.scm[14.6]:
(let loop ((x loop)) x) worked when it shouldn't have.
has been fixed so that the name is not visible to the init forms.

1988-08-25 Chris Hanson <[email protected]>

* compiler/rtlbase/rtlty1.scm[4.7.1.1]:
Change `object->address' and `object->type' to have arbitrary
expressions as arguments, rather than just registers. This is true in
practice but the component names were misleading.

Add new operation `object->unsigned-fixnum' for situations in which
the object is known to be a nonnegative fixnum. The generated code
for this can be more efficient than for the signed case.

* compiler/rtlgen/opncod.scm[4.12]:
Undo changes introduced with version 4.10, to facilitate
parallel development.

1988-08-25 Mark Friedman <[email protected]>

* compiler/machines/bobcat/rules2.scm[4.4.1.1]:
Added rule for rtl predicate OVERFLOW-TEST, in support of generic arithmetic.

* compiler/rtlbase/rtlexp.scm[4.6.1.1]:
Added rtl:expand-statement.

* compiler/machines/bobcat/machin.scm[4.10.1.1]:
Added Support for generic arithmetic in rtl:expression-cost.

1988-08-24 Chris Hanson <[email protected]>

* compiler/machines/bobcat/compiler.sf[1.4]:
Guarantee that "comp.bcon" is constructed if it doesn't already exist.

* compiler/machines/bobcat/compiler.sf[1.3]:
Load cref if not already loaded.

* compiler/machines/bobcat/compiler.sf[1.2]:
Guarantee that the ".bin" version of each file is loaded. Otherwise,
an existing ".com" could override the changes to a given file.

1988-08-24 Mark Friedman <[email protected]>

* compiler/rtlbase/rtlty1.scm[4.9]:
Just forgot a few things for the rtl-constructor stuff.

* compiler/machines/bobcat/decls.scm[4.7]:
Added expand.scm in support of the new rtl expansion phase.

1988-08-23 Chris Hanson <[email protected]>

* compiler/back/syerly.scm[1.6]:
Make error messages a bit more informative.

1988-08-23 Mark Friedman <[email protected]>

* compiler/machines/bobcat/compiler.pkg[1.7]:
Added support for a new expansion phase, which is essentially open
coding done after common subexpression elimination.

1988-08-22 Chris Hanson <[email protected]>

* compiler/machines/bobcat/compiler.pkg[1.6]:
Export `lap-generator/match-rtl-instruction' to (compiler) package so
that it can be used by RTL optimizer.

* compiler/back/lapgn2.scm[1.7.1.1]:
Define `*dead-registers*' here.

* compiler/back/lapgn1.scm[4.3]:
Split off pattern matching part of LAP generator to allow it to be
used by the RTL optimizer. Move definition of `*dead-registers*' to
another file.

* compiler/fgopt/contan.scm[4.5]:
Fix documentation.

1988-08-22 Mark Friedman <[email protected]>

* compiler/base/toplev.scm[4.9]:
There's a new expansion phase to support the open coding of generic
arithmetic. It is essentially there to allow for the open coding of
rtl that you want to be treated as a single statement or expression by
the common subexpression eliminator.

* compiler/base/macros.scm[4.6]:
The rtl constructor macros now place entries in a table that maps from
rtl types to rtl contructors.

* compiler/rtlbase/rtlcon.scm[4.10], compiler/rtlbase/rtlty1.scm[4.8]:
Added support for the open coding of generic arithmetic.

* compiler/rtlgen/opncod.scm[4.11]:
Made the vector stuff more robust (with some more open coded checks).
Added support for the open coding of generic arithmetic (the actual
code for floating point is not yet there, although the hooks are).

1988-08-18 Chris Hanson <[email protected]>

* compiler/rtlgen/rgretn.scm[4.6]:
(return-operator/pop-frames) Must pop `extra' off stack in all cases.

* compiler/rtlgen/rgretn.scm[4.5]:
Random editing to clean up code a bit. No change in functionality.

* compiler/fgopt/conect.scm[4.3]:
Test to determine if a continuation is direct linked must be more
sophisticated now that RTL generator is direct linking more kinds of
continuations.

* compiler/fggen/fggen.scm[4.10]:
Fix editing error.

* compiler/machines/bobcat/compiler.pkg[1.5]:
Export `syntax-files!' to the compiler package.

* compiler/base/contin.scm[4.4], compiler/base/ctypes.scm[4.5],
compiler/fggen/fggen.scm[4.9], compiler/fgopt/conect.scm[4.2],
compiler/fgopt/offset.scm[4.4], compiler/fgopt/operan.scm[4.3],
compiler/machines/bobcat/make.scm-68040[4.21],
compiler/rtlgen/fndblk.scm[4.8], compiler/rtlgen/opncod.scm[4.10],
compiler/rtlgen/rgretn.scm[4.4], compiler/rtlgen/rgstmt.scm[4.5],
compiler/rtlgen/rtlgen.scm[4.7], compiler/rtlgen/rtlgen.scm[4.6]:
Improve code generated for inputs like the following:

(if (if (and (object-type? (ucode-type fixnum) r)
(object-type? (ucode-type fixnum) l))
(fix:> r l)
(> r l))
...)

Previously, the code generated for the call to `fix:>' was deficient
in that it pushed a continuation, performed the inline coded
comparison, then did a pop-return. In fact, since the continuation is
known at that point, and is not being passed anywhere, there's no
reason to push anything on the stack. These changes implement this.

1988-08-16 Mark Friedman <[email protected]>

* microcode/generic.c[9.28], microcode/version.h[10.50]:
Slight typo in &= definition fixed.

1988-08-15 Chris Hanson <[email protected]>

* microcode/extern.c[9.27]:
Update documentation strings.

* runtime/savres.scm[14.4]:
Cause `disk-save' to run `event:after-restart' when given #T as a
second argument.

* runtime/version.scm[14.19]:
Parameterize `pp' to print uninterned symbols by name.
Define `primitive-procedure-documentation'.

* runtime/global.scm[14.7]:
Define `primitive-procedure-documentation'.

* runtime/pp.scm[14.4]:
Add parameterization to print uninterned symbols by name.

* microcode/Attic/config.h[9.38], microcode/array.c[9.33],
microcode/array.h[9.28], microcode/bchdmp.c[9.43],
microcode/bchgcc.h[9.33], microcode/bchgcl.c[9.34],
microcode/bchmmg.c[9.42], microcode/bchpur.c[9.41],
microcode/bignum.c[9.26], microcode/bignum.h[9.24],
microcode/bitstr.c[9.38], microcode/bitstr.h[1.5],
microcode/bkpt.c[9.22], microcode/bkpt.h[9.25],
microcode/bltdef.h[1.2], microcode/boot.c[9.50],
microcode/char.c[9.26], microcode/cmpint.h[10.2],
microcode/comlin.c[1.4], microcode/comlin.h[1.2],
microcode/comutl.c[1.13], microcode/const.h[9.29],
microcode/daemon.c[9.26], microcode/debug.c[9.29],
microcode/dmpwrld.c[9.27], microcode/dump.c[9.28],
microcode/edwin.h[1.2], microcode/errors.h[9.31],
microcode/extern.c[9.26], microcode/extern.h[9.30],
microcode/fasdump.c[9.40], microcode/fasl.h[9.29],
microcode/fasload.c[9.37], microcode/fft.c[9.24],
microcode/fhooks.c[9.28], microcode/findprim.c[9.34],
microcode/fixnum.c[9.26], microcode/fixobj.h[9.26],
microcode/flonum.c[9.25], microcode/future.c[9.26],
microcode/futures.h[9.24], microcode/gc.h[9.26],
microcode/gccode.h[9.39], microcode/gcloop.c[9.29],
microcode/gctype.c[9.29], microcode/generic.c[9.27],
microcode/history.h[9.24], microcode/hooks.c[9.32],
microcode/hunk.c[9.25], microcode/image.c[9.27],
microcode/image.h[9.22], microcode/intercom.c[9.25],
microcode/intern.c[9.45], microcode/interp.c[9.45],
microcode/interp.h[9.30], microcode/intrpt.h[1.4],
microcode/list.c[9.26], microcode/load.c[9.27],
microcode/locks.h[9.22], microcode/lookprm.c[1.2],
microcode/lookup.c[9.40], microcode/memmag.c[9.35],
microcode/missing.c[9.22], microcode/mul.c[9.24],
microcode/object.h[9.29], microcode/prim.c[9.31],
microcode/prim.h[9.40], microcode/prims.h[9.33],
microcode/primutl.c[9.46], microcode/pruxfs.c[9.28],
microcode/psbmap.h[9.27], microcode/purify.c[9.36],
microcode/purutl.c[9.34], microcode/regex.c[1.7],
microcode/regex.h[1.2], microcode/returns.h[9.33],
microcode/rgxprim.c[1.7], microcode/sample.c[9.22],
microcode/scheme.h[9.29], microcode/scode.h[9.23],
microcode/sdata.h[9.30], microcode/sgraph_a.c[1.5],
microcode/sgx.c[1.4], microcode/stack.h[9.26],
microcode/step.c[9.25], microcode/storage.c[9.43],
microcode/string.c[9.31], microcode/syntax.c[1.9],
microcode/syntax.h[1.3], microcode/sysprim.c[9.30],
microcode/trap.h[9.40], microcode/types.h[9.29],
microcode/usrdef.h[9.37], microcode/utils.c[9.38],
microcode/vector.c[9.31], microcode/version.h[10.49],
microcode/winder.h[9.23], microcode/xdebug.c[9.24],
microcode/zones.h[9.23]:
Change definition of `DEFINE_PRIMITIVE' macro to include extra fields
for minimum number of arguments and documentation. Add primitive to
access the documentation string. The min args slot is currently
unused. Change all definitions of primitives to use this macro.

The documentation strings should be filled in as time permits.

Partially update "sample.c" to reflect this. More work remains to be
done.

Update "Findprim.c" substantially, to handle these changes. Also
change all fixed size tables to be dynamically allocated.

Define new macros `EMPTY_LIST', `SHARP_F' and `SHARP_T'. All
references to `TRUTH' replaced by `SHARP_T'. Some references to `NIL'
changed to the appropriate macro, but many more remain; these should
be replaced as time permits.

Update several copyright notices to reflect new year.

Change name of "primitive.h" to "prims.h".

1988-08-11 Chris Hanson <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.20]:
Various bug fixes, also some efficiency improvements to the CSE.

* compiler/fggen/fggen.scm[4.8]:
Be more specific about what kind of combination is considered to be an
`error-combination'.

* compiler/rtlopt/rcse1.scm[4.11], compiler/rtlopt/rcse2.scm[4.9],
compiler/rtlopt/rcseep.scm[4.4], compiler/rtlopt/rcseht.scm[4.5],
compiler/rtlopt/rcserq.scm[4.3]:
Various efficiency and organization changes. Eliminate `copy-cache'
slot from `element' objects, reusing `cost' for that purpose during
the copy phase.

* compiler/back/bittop.scm[1.10]:
(assemble-objects!) Never use / when doing integer arithmetic. Use
quotient instead.

* runtime/runtime.pkg[14.18]:
Export `stack-frame/return-address' to global environment.

* runtime/uerror.scm[14.5], runtime/version.scm[14.18]:
Implement compiled code reference trap errors.

* compiler/base/scode.scm[4.5]:
Do not barf if error combination is malformed.

1988-08-10 Panayotis Skordos <[email protected]>

* microcode/image.c[9.26], microcode/sgraph_a.c[1.4]:
added halftoning routines: psam, ht-od, ht-bn, ht-ibn
added image-laplacian, image-double-by-interpolation,
write-image-2bint

1988-08-09 Chris Hanson <[email protected]>

* sf/subst.scm[4.2]:
Do not perform automagic integrations by default. This optimization
caused a bug in the runtime system version 13.108 where event
distributors ignored the internal `receivers' binding and used the
empty list instead.

* microcode/default.h[9.30], microcode/version.h[10.48]:
Disable downward coercion of flonums.

1988-08-09 Guillermo J. Rozas <[email protected]>

* microcode/dump.c[9.27]:
table_length and table_size are stored with Make_Non_Pointer, rather
than Make_Pointer, since they are integers rather than pointers.

1988-08-05 Chris Hanson <[email protected]>

* cref/toplev.scm[1.2]:
Change call to `pp' to match change in runtime system.

* runtime/version.scm[14.17]:
Introduce new variable `unspecific' which the compiler may assume an
arbitrary binding value for. Replace nearly all occurrences of
`*the-non-printing-object*' with this new variable. Flush special
handling for arguments to `error' special form, assuming that all code
is syntaxed with the new syntaxer.

* runtime/global.scm[14.6], runtime/output.scm[14.4]:
Repaginate.

* runtime/rep.scm[14.7]:
Extend `->environment' to handle package objects.

* runtime/Attic/syntax.scm[14.5], runtime/advice.scm[14.2],
runtime/dbgcmd.scm[14.3], runtime/error.scm[14.5],
runtime/format.scm[14.4], runtime/gcnote.scm[14.3],
runtime/global.scm[14.5], runtime/infutl.scm[1.3],
runtime/list.scm[14.2], runtime/load.scm[14.4],
runtime/output.scm[14.3], runtime/packag.scm[14.4],
runtime/parse.scm[14.4], runtime/pp.scm[14.3], runtime/rep.scm[14.6],
runtime/savres.scm[14.3], runtime/sfile.scm[14.2],
runtime/system.scm[14.4], runtime/uerror.scm[14.4],
runtime/unsyn.scm[14.3], runtime/where.scm[14.4]:
Replace occurrences of `*the-non-printing-object*' with `unspecific'.
Flush randomness dealing with old `error' macro, specifically because
it referred to `*the-non-printing-object*'.

* runtime/boot.scm[14.2]:
Move `*the-non-printing-object*' to "global" since it isn't really
needed at boot time.

* runtime/global.scm[14.4], sf/gconst.scm[4.2]:
Add variable `unspecific' which the compiler may treat as being bound
to any convenient value. This is used as the value of an expression
when that expression's value is unused.

* runtime/pp.scm[14.2]:
Regularize argument structure to `pp'. Extend to handle hash number
of object in addition to object itself. Extend to print out
components of named structures.

1988-08-05 Guillermo J. Rozas <[email protected]>

* compiler/rtlgen/rgrval.scm[4.4.1.1]:
Lexpr bug fix between 4.5 and 4.6 incorporated to 4.4 for BBN (which is not
going to 4.5 yet).

1988-08-02 Chris Hanson <[email protected]>

* runtime/version.scm[14.16]:
Change `procedure?' to handle entities specially, recursing on their
invocation method. Change `environment?' to be true of
`system-global-environment'. Add new procedures `ic-environment?' and
`system-global-environment?' to distinguish the interesting cases.

1988-08-01 Chris Hanson <[email protected]>

* runtime/dbgutl.scm[14.3], runtime/debug.scm[14.4],
runtime/rep.scm[14.5], runtime/runtime.pkg[14.17],
runtime/scode.scm[14.3], runtime/uenvir.scm[14.3],
runtime/where.scm[14.3]:
Change `environment?' to be true of `system-global-environment'. Add
new procedures `ic-environment?' and `system-global-environment?' to
distinguish the interesting cases.

* runtime/udata.scm[14.4]:
Change `procedure?' to handle entities specially, recursing on their
invocation method.

1988-07-22 Chris Hanson <[email protected]>

* runtime/uerror.scm[14.3], runtime/version.scm[14.15]:
For "operator" microcode error handlers, the irritants were not being
passed as a list, resulting in a different error being signalled
whenever such an error occurred.

1988-07-21 Chris Hanson <[email protected]>

* microcode/Attic/config.h[9.37], microcode/boot.c[9.49],
microcode/version.h[10.47]:
Put default pathnames in file "paths.h".

1988-07-20 Chris Hanson <[email protected]>

* compiler/fgopt/order.scm[4.6]:
It is now legal for a continuation to have a noop node as its entry,
provided that the noop node has no next. If it is a noop node,
connect to the next of the noop node rather than the entry of the
continuation.

* compiler/machines/bobcat/compiler.pkg[1.4],
compiler/machines/bobcat/decls.scm[4.6]:
Add new operation `sc' for running `sf' on compiler files.

* compiler/base/object.scm[4.3]:
Fix two bugs in the object unparsing code.

* compiler/fggen/fggen.scm[4.7],
compiler/machines/bobcat/make.scm-68040[4.19]:
Do not delete fg-noop nodes that are still needed. In the following
example, the entry node of the continuation passed to `bar' is needed
because it is referenced by the subproblem object for the let:

(let ((cos-total
(begin (bar)
cos7)))
cos-total)

1988-07-19 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.16]:
Implement primitive `print-graphics-inverse'.

* microcode/sgx.c[1.3]:
Grab X error hooks. When errors occur, signal Scheme primitive errors
rather than just terminating the process.

* compiler/machines/bobcat/compiler.pkg[1.3]:
Add imports for `compiler-entries-tag', which is defined by runtime
system now.

1988-07-16 Chris Hanson <[email protected]>

* compiler/base/toplev.scm[4.8]:
Procedure `condition/message' flushed. Use `condition/report-string'
in stead.

* compiler/machines/bobcat/dassm1.scm[4.7]:
Procedure `primitive-datum' now called `object-datum'.

* runtime/unpars.scm[14.5], runtime/version.scm[14.14]:
When unparsing `manifest-closure' objects, use `compiled-procedure' as
the type name.

* runtime/Attic/syntax.scm[14.4]:
Fix stupid bug in `cond' syntaxer.

* runtime/runtime.pkg[14.15]:
Starbase graphics: export procedures to control line style and drawing
mode.

* microcode/sgraph.h[1.4], microcode/sgx.c[1.2],
microcode/version.h[10.46]:
Correctly implement closing of graphics device. Make everyone close
an open device before opening the next one.

1988-07-16 Hal Abelson <[email protected]>

* compiler/base/ctypes.scm[4.4]:
Fix stupid bug involving `standard-unparser'; it requires 2 arguments,
the second is no longer optional. Check for other occurrences of
this.

1988-07-15 Chris Hanson <[email protected]>

* runtime/version.scm[14.13]:
Adjust handling of `=>' option to `cond' special form so that it
matches the definition in the standard.

Change unparser to handle character sets specially.

Implement octal ASCII escape sequences in strings, both for the parser
and unparser.

* runtime/parse.scm[14.3]:
Change string parser to allow escape sequence consisting of one to
three octal digits, which is translated into the ASCII equivalent.

* runtime/unpars.scm[14.4]:
Change string unparser to notice character sets and unparse them
specially. Also notice non-graphic characters in strings and, when
slashifying, unparse them using octal escape sequence.

* runtime/chrset.scm[14.3]:
Make `char-set?' more discriminating (previously it just looked for
strings of a particular length). Add `char-set:not-graphic' for use
by unparser.

* runtime/runtime.pkg[14.14]:
Eliminate `syntaxer/cond-=>-helper'. Add `char-set:not-graphic'.

* runtime/Attic/syntax.scm[14.3]:
Change handling of `=>' option to `cond' special form so that it
conforms to standard. Eliminate `syntaxer/cond-=>-helper' in favor of
using uninterned variable.

* microcode/utabmd.scm[9.46]:
Change `delayed' type name to be `promise'; make `delayed' be an
alternate alias.

* runtime/option.scm[14.3]:
Purify option files as they are loaded.

* microcode/sgraph.h[1.3], microcode/sgraph_a.c[1.3],
microcode/version.h[10.45]:
Add new file "SgX.c". Upgrade Starbase graphics to support X windows
(version 10).

* runtime/option.scm[14.2], runtime/runtime.pkg[14.13],
runtime/version.scm[14.12]:
Add starbase graphics primitives as option package.

1988-07-14 Chris Hanson <[email protected]>

* runtime/debug.scm[14.3], runtime/error.scm[14.4],
runtime/input.scm[14.3], runtime/load.scm[14.3],
runtime/output.scm[14.2], runtime/packag.scm[14.3],
runtime/rep.scm[14.4], runtime/runtime.pkg[14.12],
runtime/version.scm[14.11], runtime/where.scm[14.2]:
Change the names of the `standard-repl-{environment,syntax-table}'
operations to `nearest-repl/{environment,syntax-table}'. Add new
operations `{input,output}-port/operation'.

1988-07-13 Chris Hanson <[email protected]>

* runtime/parse.scm[14.2], runtime/partab.scm[14.3],
runtime/runtime.pkg[14.11], runtime/version.scm[14.10]:
Change `parser-table/set-entry!' to default its "collect-list"
argument by wrapping its "parse-object" argument with
`collect-list-wrapper'.

1988-07-13 Hal Abelson <[email protected]>

* runtime/emacs.scm[14.2]:
Change paranoid error hook so that it aborts the error without giving
the user any options.

1988-07-11 Chris Hanson <[email protected]>

* runtime/input.scm[14.2]:
Fix defaulting of `interval' argument in `char-ready?'.

* runtime/rep.scm[14.3]:
Make the default REPL value procedure write ";Value: " before the
value, to make this more like the Emacs interface.

1988-07-10 Panayotis Skordos <[email protected]>

* microcode/array.c[9.32]:
array-search-value-tolerance-from

1988-07-09 Chris Hanson <[email protected]>

* runtime/numpar.scm[14.2]:
Change default radix of `string->number' to decimal.

1988-07-09 Panayotis Skordos <[email protected]>

* microcode/array.h[9.27]:
modified the c_make_polar macro to return angle=0 for x,y=0,0

* microcode/array.c[9.31]:
1.array-make-polar returns angle=0 for x,y=0,0
2.added procs: array-accumulate, array-cons-reals, array-read-2bint-file

1988-07-08 Chris Hanson <[email protected]>

* microcode/version.h[10.44]:
Add new primitive to get memory usage statistics.
Change default size of constant space.

* microcode/sysprim.c[9.29]:
Add new primitive to get memory usage statistics.

1988-07-07 Chris Hanson <[email protected]>

* microcode/Attic/config.h[9.36]:
Change default size of constant space.

* runtime/unpars.scm[14.3]:
Change unparsing of compiled procedures and entries to more clearly
indicate when the source file is shown.

* runtime/make.scm[14.4], runtime/option.scm[14.1],
runtime/runtime.pkg[14.10], runtime/version.scm[14.9]:
Add option files and procedure `load-option' to load them.

* runtime/format.scm[14.3]:
Fix various bugs having to do with naming of low level output
operations.

* runtime/format.scm[14.2]:
Eliminate "unreferenced bound variable" warnings.

* runtime/format.scm[14.1]:
Initial release for version 14.

1988-07-06 Chris Hanson <[email protected]>

* runtime/rep.scm[14.2]:
In `make-cmdl', change the point at which the cmdl continuation is
saved so that aborting will disable interrupts again.

1988-06-30 Chris Hanson <[email protected]>

* runtime/version.scm[14.8]:
Change the handling of the microcode version so that it is updated
whenever the runtime system is restored.

* runtime/runtime.pkg[14.9], runtime/system.scm[14.3]:
Add procedures to modify the version and modification components of a
system.

1988-06-29 Arthur Gleckler <[email protected]>

* microcode/mul.c[9.23], microcode/version.h[10.43]:
Portable multiply function Mul() was broken because of lack of unsignedness
and a fencepost error.

1988-06-28 Arthur Gleckler <[email protected]>

* compiler/machines/bobcat/lapgen.scm[4.10]:
Procedure fixnum-constant didn't realize that maximum-positive-fixnum is one
less than the absolute value of the least (negative) fixnum.

1988-06-22 Chris Hanson <[email protected]>

* runtime/runtime.pkg[14.8]:
Export `condition/internal?' (not `condition-type/internal?') from
error handler package.

* runtime/conpar.scm[14.4], runtime/runtime.pkg[14.7],
runtime/version.scm[14.7], runtime/wind.scm[14.2]:
Change the stack parser to ignore frames of type
RESTORE-TO-STATE-POINT unless they contain a state point whose space
is the system state space.

1988-06-22 Joe Marshall <[email protected]>

* runtime/runtime.pkg[14.6]:
Export compiler-info/symbol-table from info-package.

* runtime/runtime.pkg[14.5]:
No changes.
e

1988-06-21 Chris Hanson <[email protected]>

* runtime/error.scm[14.3]:
*** empty log message ***

* runtime/version.scm[14.6]:
Variety of changes to condition system, to generalize error reporting
mechanism. Trivial change to continuation parser.

* runtime/runtime.pkg[14.4]:
Add new procedures:

condition-type/internal?
condition-type/reporter
condition/report-string
condition/reporter
condition/write-report

Change name of condition-type "dependencies" to "generalizations".

* runtime/debug.scm[14.2]:
`format-error-message' now takes a port as a third argument.

* runtime/error.scm[14.2]:
Change error reporting mechanism so that condition types have an
explicit reporting procedure. This procedure receives the condition
and an output port as arguments and can do anything it likes.

New procedure `condition/internal?' is used to filter out complicated
conditions. If handlers always ignore conditions satisfying this
predicate they will never have to do anything hairy.

`format-error-message' now takes a port as a third argument.

* runtime/conpar.scm[14.3]:
Add `stack-frame/return-address' operation. This will be more useful
when the stack parser is generalized to handle compiled code frames.

1988-06-16 Chris Hanson <[email protected]>

* runtime/version.scm[14.5]:
Change to use new procedure `add-identification!'.

* runtime/system.scm[14.2]:
Add procedure `add-identification!' which provides all the interesting
functionality needed by most programs now.

* runtime/scomb.scm[14.2]:
Increase the number of primitives that are constant folded.

* runtime/runtime.pkg[14.3]:
Move some items from () to other packages, then export them back to
(). Introduce some new stuff.

* runtime/make.scm[14.3]:
Add initialization for (runtime compiler-info).

* runtime/intrpt.scm[14.2]:
Comment out code for unused keyboard interrupts.

* runtime/infutl.scm[1.2]:
Several bug fixes.

* runtime/global.scm[14.3]:
Move several definitions from here to more appropriate places.

* runtime/Attic/syntax.scm[14.2], runtime/lambda.scm[14.2],
runtime/scan.scm[14.2], runtime/scode.scm[14.2]:
Flush occurrences of `make-named-tag'.

* runtime/gdatab.scm[14.3]:
Change method of recording named structure descriptions to something
that can be used at cold load time.

* runtime/defstr.scm[14.2]:
Flush occurrences of `make-named-tag'.

Change method of recording named structure descriptions to something
that can be used at cold load time.

1988-06-15 Joe Marshall <[email protected]>

* compiler/machines/bobcat/dassm1.scm[4.6]:
Changes to reflect changes in infutl

* compiler/machines/bobcat/compiler.pkg[1.2]:
Remove loading of base/infutl as it is now in the runtime system.

* runtime/unpars.scm[14.2]:
Change unparsing of compiled procedures to be more informative.

* runtime/runtime.pkg[14.2]:
Added compiler-info package.

* runtime/udata.scm[14.3]:
Add procedures DISCRIMINATE-COMPILED-ENTRY and
COMPILED-CODE-BLOCK/MANIFEST-CLOSURE?

1988-06-14 Chris Hanson <[email protected]>

* runtime/unsyn.scm[14.2]:
Do not unsyntax a `make-environment' special form unless the last
action in its body is `the-environment'.

* cref/make.scm[1.2]:
Always load compiled if possible. Adjust version to agree with RCS
version.

* cref/forpkg.scm[1.2]:
Adjust formatting of package filenames.

* compiler/base/switch.scm[4.6],
compiler/machines/bobcat/make.scm-68040[4.18],
compiler/rtlgen/opncod.scm[4.9]:
Merge in vector range checking.

* compiler/base/blocks.scm[4.3], compiler/base/contin.scm[4.3],
compiler/base/ctypes.scm[4.3], compiler/base/debug.scm[4.6],
compiler/base/enumer.scm[4.2], compiler/base/lvalue.scm[4.6],
compiler/base/macros.scm[4.5], compiler/base/object.scm[4.2],
compiler/base/pmerly.scm[1.7], compiler/base/pmlook.scm[1.6],
compiler/base/pmpars.scm[1.3], compiler/base/proced.scm[4.5],
compiler/base/rvalue.scm[4.3], compiler/base/scode.scm[4.4],
compiler/base/subprb.scm[4.3], compiler/base/switch.scm[4.5],
compiler/base/toplev.scm[4.7], compiler/base/utils.scm[4.5],
compiler/fggen/canon.scm[1.2], compiler/fggen/fggen.scm[4.6],
compiler/fgopt/offset.scm[4.3], compiler/fgopt/order.scm[4.5],
compiler/fgopt/simapp.scm[4.3],
compiler/machines/bobcat/assmd.scm[1.34],
compiler/machines/bobcat/dassm1.scm[4.5],
compiler/machines/bobcat/dassm2.scm[4.7],
compiler/machines/bobcat/decls.scm[4.5],
compiler/machines/bobcat/inerly.scm[1.5],
compiler/machines/bobcat/insmac.scm[1.124],
compiler/machines/bobcat/instr1.scm[1.66],
compiler/machines/bobcat/instr3.scm[1.15],
compiler/machines/bobcat/insutl.scm[1.6],
compiler/machines/bobcat/lapgen.scm[4.9],
compiler/machines/bobcat/machin.scm[4.10],
compiler/machines/bobcat/make.scm-68040[4.17],
compiler/machines/bobcat/rules1.scm[4.13],
compiler/machines/bobcat/rules2.scm[4.4],
compiler/machines/bobcat/rules3.scm[4.9],
compiler/machines/bobcat/rules4.scm[4.3],
compiler/rtlbase/regset.scm[1.2], compiler/rtlbase/rtlcon.scm[4.9],
compiler/rtlbase/rtline.scm[4.3], compiler/rtlbase/rtlobj.scm[4.3],
compiler/rtlbase/rtlty2.scm[4.5], compiler/rtlgen/fndblk.scm[4.7],
compiler/rtlgen/opncod.scm[4.8], compiler/rtlgen/rgcomb.scm[4.5],
compiler/rtlgen/rgretn.scm[4.3], compiler/rtlgen/rgrval.scm[4.7],
compiler/rtlgen/rgstmt.scm[4.4], compiler/rtlgen/rtlgen.scm[4.5],
compiler/rtlopt/ralloc.scm[1.15], compiler/rtlopt/rcompr.scm[1.5],
compiler/rtlopt/rcse1.scm[4.10], compiler/rtlopt/rcse2.scm[4.8],
compiler/rtlopt/rcseht.scm[4.4], compiler/rtlopt/rcserq.scm[4.2],
compiler/rtlopt/rlife.scm[1.59]:
First checkin for runtime system version 14.

* compiler/back/asmmac.scm[1.6], compiler/back/bittop.scm[1.9],
compiler/back/lapgn1.scm[4.2], compiler/back/linear.scm[4.2],
compiler/back/regmap.scm[4.4], compiler/back/syerly.scm[1.5],
compiler/back/syntax.scm[1.21]:
First checkin for runtime version 14.

1988-06-13 Chris Hanson <[email protected]>

* sf/butils.scm[4.1], sf/cgen.scm[4.1], sf/chtype.scm[4.1],
sf/copy.scm[4.1], sf/emodel.scm[4.1], sf/free.scm[4.1],
sf/gconst.scm[4.1], sf/gimprt.scm[4.1], sf/lsets.scm[4.1],
sf/make.scm[4.5], sf/object.scm[4.1], sf/pardec.scm[4.1],
sf/pthmap.scm[4.1], sf/reduct.scm[4.1], sf/sf.pkg[4.1],
sf/sf.sf[4.1], sf/subst.scm[4.1], sf/table.scm[4.1],
sf/tables.scm[4.1], sf/toplev.scm[4.1], sf/usicon.scm[4.1],
sf/usiexp.scm[4.1], sf/xform.scm[4.1]:
First checkin for runtime system version 14.

* runtime/Attic/syntab.scm[14.2], runtime/Attic/syntax.scm[14.1],
runtime/advice.scm[14.1], runtime/bitstr.scm[14.1],
runtime/boole.scm[14.2], runtime/boot.scm[14.1],
runtime/char.scm[14.1], runtime/chrset.scm[14.2],
runtime/codwlk.scm[14.2], runtime/conpar.scm[14.2],
runtime/contin.scm[14.2], runtime/cpoint.scm[14.2],
runtime/datime.scm[14.1], runtime/dbgcmd.scm[14.2],
runtime/dbgutl.scm[14.2], runtime/debug.scm[14.1],
runtime/defstr.scm[14.1], runtime/emacs.scm[14.1],
runtime/equals.scm[14.1], runtime/error.scm[14.1],
runtime/events.scm[14.1], runtime/framex.scm[14.2],
runtime/gc.scm[14.1], runtime/gcdemn.scm[14.2],
runtime/gcnote.scm[14.2], runtime/gcstat.scm[14.1],
runtime/gdatab.scm[14.2], runtime/gensym.scm[14.1],
runtime/global.scm[14.2], runtime/hash.scm[14.1],
runtime/histry.scm[14.1], runtime/input.scm[14.1],
runtime/intrpt.scm[14.1], runtime/io.scm[14.1],
runtime/lambda.scm[14.1], runtime/lambdx.scm[14.2],
runtime/list.scm[14.1], runtime/load.scm[14.2],
runtime/make.scm[14.2], runtime/msort.scm[14.1],
runtime/numpar.scm[14.1], runtime/output.scm[14.1],
runtime/packag.scm[14.2], runtime/parse.scm[14.1],
runtime/partab.scm[14.2], runtime/pathnm.scm[14.1],
runtime/poplat.scm[14.2], runtime/pp.scm[14.1],
runtime/prop1d.scm[14.2], runtime/prop2d.scm[14.2],
runtime/qsort.scm[14.1], runtime/queue.scm[14.2],
runtime/random.scm[14.2], runtime/rep.scm[14.1],
runtime/runtime.pkg[14.1], runtime/runtime.sf[14.1],
runtime/savres.scm[14.2], runtime/scan.scm[14.1],
runtime/scode.scm[14.1], runtime/scomb.scm[14.1],
runtime/sdata.scm[14.1], runtime/sfile.scm[14.1],
runtime/stream.scm[14.1], runtime/string.scm[14.1],
runtime/strnin.scm[14.2], runtime/strott.scm[14.2],
runtime/strout.scm[14.2], runtime/sysclk.scm[14.1],
runtime/sysmac.scm[14.2], runtime/system.scm[14.1],
runtime/udata.scm[14.2], runtime/uenvir.scm[14.2],
runtime/uerror.scm[14.2], runtime/unpars.scm[14.1],
runtime/unsyn.scm[14.1], runtime/unxdir.scm[14.2],
runtime/unxpth.scm[14.1], runtime/urtrap.scm[14.2],
runtime/utabs.scm[14.1], runtime/vector.scm[14.1],
runtime/version.scm[14.2], runtime/where.scm[14.1],
runtime/wind.scm[14.1], runtime/wrkdir.scm[14.2]:
First checkin for version 14.

* runtime/packag.scm[14.1], runtime/unxdir.scm[14.1],
runtime/version.scm[14.4], runtime/version.scm[14.3],
runtime/version.scm[14.1], runtime/wrkdir.scm[14.1]:
*** empty log message ***

* compiler/rtlgen/opncod.scm[4.7.1.3]:
Typo.

* compiler/rtlgen/opncod.scm[4.7.1.2]:
(range-check): Handle case where `error-finish' is false. This is
true for primitives whose continuation is 'EFFECT.

* compiler/base/switch.scm[4.4.1.2]:
By default, disable range checking on vector operations.

1988-06-10 Chris Hanson <[email protected]>

* microcode/version.h[10.42]:
Fix nasty bug in tty interrupt code. The symptom of the bug was:
typing ^G while the microcode was in `TYI_Immediate' caused the next
read from the tty to get EOF; subsequently Scheme signalled TERM_EOF.
The problem was that there was local storage in `TYI_Immediate', which
contained trash after the interrupt performed a `longjmp' back into
the procedure. According to the definition of `setjmp', it is illegal
to depend on such local storage. We are unlucky in that only a little
bit of the local storage was affected so it took a long time to notice
this problem.

This was fixed by introducing a fluid-binding mechanism to allocate
and deallocate local state. There may be a problem with the
interaction between `longjmp' and this mechanism. If we `longjmp'
past the deallocation routine the world will be messed up.

1988-06-09 Mark Friedman <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.16.1.1]:
Open coding of vector range checks

* compiler/base/switch.scm[4.4.1.1]:
A new switch (compiler:generate-range-checks?) controls whether
open-coding of vector operations includes range checking on the
index.

* compiler/rtlgen/opncod.scm[4.7.1.1]:
Open coding of vector-set! and vector-ref now includes range checking
on the index.

1988-06-08 Joe Marshall <[email protected]>

* microcode/version.h[10.41]:
Fix to bitstr.c

* microcode/bitstr.c[9.37]:
Attempt to fix one path through copy bits. I think this works,
but I make no claims about understanding why.

1988-06-05 Henry M. Wu <[email protected]>

* microcode/generic.c[9.26], microcode/version.h[10.40]:
Added complex number arithmetic (no trancendentals).

1988-06-04 Henry M. Wu <[email protected]>

* microcode/sdata.h[9.29]:
Added complex number abstraction.

1988-06-03 Chris Hanson <[email protected]>

* compiler/rtlopt/rcse1.scm[4.9]:
(cse/assign) Notice pops from stack and adjust stack pointer
accordingly. Can't understand why this wasn't noticed before.

* compiler/machines/bobcat/make.scm-68040[4.16]:
Variety of bug fixes. Also revert this file so that the names
exported from the compiler package are put directly in the global
environment, instead of the environment into which the file is loaded.

* compiler/rtlopt/rcseht.scm[4.3]:
(hash-table-insert!) If `hash' is false, do not link the resulting
element into a hash bucket -- just save it in the value chain.

* compiler/rtlopt/rcse2.scm[4.7]:
(invalidate-memory-destination!) Optimize this -- if both class and
hash are not given, don't bother to insert the element in the hash
table, because it will have no useful effect.

* compiler/rtlopt/rcse1.scm[4.8]:
(assignment-memory-insertion) Do not perform CSE on the memory
address. Doing that causes problems because the memory address cannot
be distinguished from a reference to that address. The RTL should be
fixed so that these things are distinguished, and then we can
re-enable memory address CSE.

* compiler/back/regmap.scm[4.3]:
(add-pseudo-register-alias) Delete the alias from the register map
first. This prevents the map from having two entries for the same
alias, one of which is incorrect.

* compiler/base/debug.scm[4.5]:
Change `compiler:write-rtl-file' to do defaulting of file type
differently, and to allow an optional output file argument.

1988-05-28 Chris Hanson <[email protected]>

* compiler/machines/bobcat/rules1.scm[4.12]:
Add new rule.

1988-05-20 Chris Hanson <[email protected]>

* runtime/Attic/syntab.scm[14.1], runtime/boole.scm[14.1],
runtime/chrset.scm[14.1], runtime/codwlk.scm[14.1],
runtime/conpar.scm[14.1], runtime/contin.scm[14.1],
runtime/cpoint.scm[14.1], runtime/dbgcmd.scm[14.1],
runtime/dbgutl.scm[14.1], runtime/framex.scm[14.1],
runtime/gcdemn.scm[14.1], runtime/gcnote.scm[14.1],
runtime/gdatab.scm[14.1], runtime/global.scm[14.1],
runtime/lambdx.scm[14.1], runtime/load.scm[14.1],
runtime/make.scm[14.1], runtime/partab.scm[14.1],
runtime/poplat.scm[14.1], runtime/prop1d.scm[14.1],
runtime/prop2d.scm[14.1], runtime/queue.scm[14.1],
runtime/random.scm[14.1], runtime/savres.scm[14.1],
runtime/strnin.scm[14.1], runtime/strott.scm[14.1],
runtime/strout.scm[14.1], runtime/sysmac.scm[14.1],
runtime/udata.scm[14.1], runtime/uenvir.scm[14.1],
runtime/uerror.scm[14.1], runtime/urtrap.scm[14.1]:
*** empty log message ***

1988-05-19 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/dassm2.scm[4.6]:
Fix bug in INTERPRETER-REGISTER. It now checks whether the offset is
a known offset directly, and if not, it tries the aligned version
instead. The bug was noticed because interpreter entries are 6 bytes
long, so only half of them are aligned, and the others were not found.

1988-05-19 Mark Friedman <[email protected]>

* compiler/machines/bobcat/lapgen.scm[4.8]:
Oops. Small bug with fixnum additions and subtractions of constants.

* compiler/machines/bobcat/make.scm-68040[4.15]:
open coded vector-ref and vector-set! for non-constant
indices.

* compiler/machines/bobcat/machin.scm[4.9]:
Added expression cost for FIXNUM->OBJECT.
Subtracted the boxing cost for the fixnum operations
because we now do the boxing explicitly via FIXNUM->OBJECT.

* compiler/machines/bobcat/lapgen.scm[4.7]:
Fixed code for fixnum operations involving constants.
Multiplication by a power of 2 becomes a shift.
If the fixnum operation is commutative and involves a
constant, better code may be generated by swaping the
order of the operands. This is now done.

* compiler/machines/bobcat/rules1.scm[4.11]:
Added support for FIXNUM->OBJECT rtl type.
Removed the implicit boxing of fixnum operations
because it is now done explicitly by FIXNUM->OBJECT.

* compiler/rtlbase/rtlcon.scm[4.8], compiler/rtlbase/rtlexp.scm[4.6],
compiler/rtlbase/rtlty1.scm[4.7]:
Added an explicit FIXNUM->OBJECT rtl type for eventual
support for reusing the unboxed results of fixnum operations

* compiler/rtlgen/opncod.scm[4.7]:
Open coded vector-ref and vector-set! with non-constant indices.
No index range checking yet.
Commented out code for open codinf of system-... functions with
side effects. These were causing an esoteric GC problem.

1988-05-17 Henry M. Wu <[email protected]>

* compiler/machines/bobcat/rules1.scm[4.10]:
Character Stuff.

1988-05-14 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/dassm2.scm[4.5],
compiler/machines/bobcat/dassm3.scm[4.5],
compiler/machines/bobcat/make.scm-68040[4.14]:
Disassembler changes:

- Fix unbound variable bugs in the disassembler.
- Fix symbolic/numeric register bug.
- Fix bug backing out of undefined instructions.
- Make bad 68020 extended forms back out instead of causing errors.
- Add handlers for 68020 32/64 bit multiplication and division.

1988-05-13 Chris Hanson <[email protected]>

* microcode/prename.h[1.2]:
Add aliases for `object-new-type' and `primitive-object-new-type'.

1988-05-12 Chris Hanson <[email protected]>

* microcode/purify.c[9.35]:
Conditionalize phase error test so that it is ignored if
FLOATING_ALIGNMENT is defined. This will eventually be fixed
correctly.

1988-05-11 Chris Hanson <[email protected]>

* microcode/prim.c[9.30], microcode/version.h[10.39]:
Bugs: `object-gc-type' was using `MAKE_UNSIGNED_FIXNUM' to compute its
result when in fact the result was signed. `object-set-type' was
going to `Microcode_Termination' when its first argument was an
unknown type code, rather than signalling a bad-range error.

1988-05-11 Guillermo J. Rozas <[email protected]>

* sf/make.scm[4.4], sf/pardec.scm[3.8], sf/subst.scm[3.10],
sf/usiexp.scm[3.8]:
Add a REDUCE-OPERATOR declaration so that users can get the same
functionality as the system already provides for +, -, list, etc.

Shorten some of the warning messages.

1988-05-10 Chris Hanson <[email protected]>

* microcode/version.h[10.38]:
Change type check on first argument to `dump-band' to include all
applicable types.

Change definitions of SMALLEST_FIXNUM and BIGGEST_FIXNUM to have
explicit casts to long type. Previously this was automatically true
but ANSI C forces such constants to be unsigned long instead.

* microcode/fasdump.c[9.39]:
Change type check on first argument to `dump-band' to include all
applicable types.

* microcode/object.h[9.28]:
Change definitions of SMALLEST_FIXNUM and BIGGEST_FIXNUM to have
explicit casts to long type. Previously this was automatically true
but ANSI C forces such constants to be unsigned long instead.

* microcode/fhooks.c[9.27], microcode/hooks.c[9.31],
microcode/version.h[10.37]:
Move `get-fluid-bindings' and `set-fluid-bindings!' into the normal
microcode. This allows the new runtime system to have the hooks for
fluid-bindings even if they aren't in use.

1988-05-10 Henry M. Wu <[email protected]>

* compiler/machines/bobcat/dassm2.scm[4.4],
compiler/machines/bobcat/dassm3.scm[4.4]:
Added knowledge of byte/char operations

* compiler/machines/bobcat/rules1.scm[4.9],
compiler/machines/bobcat/rules1.scm[4.8]:
CHAR/STRING open-coding, bug fix

1988-05-09 Henry M. Wu <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.13]:
CHAR/STRING open-coding

* compiler/machines/bobcat/lapgen.scm[4.6],
compiler/machines/bobcat/machin.scm[4.8],
compiler/machines/bobcat/rules1.scm[4.7],
compiler/rtlbase/rtlcon.scm[4.7], compiler/rtlbase/rtlexp.scm[4.5],
compiler/rtlbase/rtlty1.scm[4.6], compiler/rtlbase/rtlty2.scm[4.4],
compiler/rtlgen/opncod.scm[4.6], compiler/rtlopt/rcse2.scm[4.6],
compiler/rtlopt/rcseep.scm[4.3]:
Added string/char open-coding.

1988-05-06 Chris Hanson <[email protected]>

* runtime/input.scm[13.52]:
Default `load-noisily?' to false. People seem to prefer this.

* microcode/bchpur.c[9.40]:
Update `primitive-purify' to new interface. Forgot to do this one
when the regular version was updated.

1988-05-05 Chris Hanson <[email protected]>

* microcode/bintopsb.c[9.35]:
Eliminate random escape from string. Rename variable `string' to
`str' because `string' is a typedef. HP compiler works but this is
illegal combination.

* microcode/array.c[9.30]:
Illegal to take address of a variable that has been declared
`register'. HP's compiler never complained by GCC does.

* microcode/interp.c[9.44], microcode/purify.c[9.34],
microcode/version.h[10.36], runtime/gc.scm[13.44]:
Change interface of `primitive-purify' to take an extra argument,
`safety-margin' (which works like the argument to `garbage-collect'),
and returns an extra value (which is like the value of
`garbage-collect'). These changes will allow purify to be used
instead of gc when desired.

1988-05-04 Guillermo J. Rozas <[email protected]>

* microcode/boot.c[9.48], microcode/version.h[10.35]:
1) Change -compiler to default parameters, so that they can be
overriden with -band, -heap, etc.

2) Add double MC68881 code in hand-coded generic arithmetic for use by
compiled code.

* microcode/Attic/config.h[9.35]:
Increment COMPILER_CONSTANT_SIZE and COMPILER_HEAP_SIZE.

1988-05-03 Guillermo J. Rozas <[email protected]>

* microcode/lookup.c[9.39], microcode/lookup.h[9.40],
microcode/version.h[10.34]:
Implement environment-link-name.

Split lookup.c into lookup.c and lookprm.c which contains the
primitive procedures to invoke the lookup code.

* runtime/boot.scm[13.46], runtime/error.scm[13.51],
runtime/list.scm[13.43]:
Fix paranoia bug in list.scm (map, map*, and for-each were not
paranoid enough).

Add error handlers for environment-link-name.

* microcode/utabmd.scm[9.45]:
Restore bad-assignment error for environment-link-name.

1988-05-03 Henry M. Wu <[email protected]>

* compiler/machines/bobcat/lapgen.scm[4.5]:
Fixed bug with FIXNUM-CONSTANT not sign-extending.

* compiler/machines/bobcat/machin.scm[4.7],
compiler/machines/bobcat/machin.scm[4.6]:
Added information on FIXNUM size.

1988-05-02 Henry M. Wu <[email protected]>

* compiler/machines/bobcat/machin.scm[4.5]:
Added information on FIXNUM size.

1988-04-29 Mark Friedman <[email protected]>

* compiler/machines/bobcat/make.scm-68040[4.12]:
OOPS. Last version had a missinbg paren.

* compiler/machines/bobcat/make.scm-68040[4.11]:
Added support for open coding of fixnum arithmetic and predicates.

1988-04-27 Guillermo J. Rozas <[email protected]>

* microcode/fhooks.c[9.26]:
deep_lookup was being called with an extraneous fourth argument.

* compiler/machines/bobcat/make.scm-68040[4.10],
microcode/version.h[10.33]:
Fix a bug in local lexprs.

* microcode/returns.h[9.32]:
Remove RC_REPEAT_DISPATCH.

1988-04-27 Henry M. Wu <[email protected]>

* microcode/char.c[9.25]:
Removed default mapping between ascii and mit-ascii.

* runtime/char.scm[13.43]:
Fixed position of meta bit, added ASCII names.

1988-04-26 Chris Hanson <[email protected]>

* runtime/input.scm[13.51], runtime/rep.scm[13.44]:
Change `load' to interact better with Emacs interface. Dissect REP
loop slightly to allow its parts to be used independently by `load'.
Now whenever `load' prints a value it is also entered in the REP
printer history. Also, the value of the last file loaded is returned
to the REP loop as the value of the `load' expression.

All of this is useful for allowing Emacs to use `load' for zapping.
Now, zapping from a file is more or less equivalent to zapping through
a pipe. Before, there were significant differences, especially
noticeable in interaction with the printer history.

1988-04-26 Mark Friedman <[email protected]>

* compiler/rtlopt/rcompr.scm[1.4]:
Added a new test in optimize-rtl called rtl:optimizable?
Currently it is only used to prevent the optimization of
OBJECT->FIXNUM. This is done to prevent an explosion in the
number of rules necessary in the back end. See the commant in
optimize-rtl for more info.

* compiler/rtlopt/rcse1.scm[4.7]:
Added cse methods for FIXNUM-PRED-2-ARGS and FIXNUM-PRED-1-ARG.
This is in support of binary and unary open coded fixnum predicates.

* compiler/rtlopt/rcse2.scm[4.5]:
Added fixnums to non-object-invalidate. Someday we may not
need to do this. We may be able to keep these guys around.
See the log message for rtlbase/rtlcon.scm 4.6 for some more info.

* compiler/rtlbase/rtlcon.scm[4.6]:
Support added for the generation of rtl for open coded fixnum
arithmetic and predicates.
NOTE: Someday, when we have some support for the persistance of
untyped objects (i.e. when we have some way of saving unboxed
fixnums across GC calls) we can do some fancier things such as
eliminating the boxing of a fixnum calculation which is just going
to be unboxed and used in another fixnum calculation. My idea
for doing this is to add an explicit FIXNUM->OBJECT rtl expression
and when OBJECT->FIXNUM is simplified and its operand is FIXNUM->OBJECT
then cancel them out and return the operand of the FIXNUM->OBJECT.
The result of an fixnum expression expression will then have to be
considered an RTL:FIXNUM-VALUED-EXPRESSION? and OBJECT-NON-INVALIDATE
will have to be updated.

1988-04-25 Chris Hanson <[email protected]>

* microcode/comlin.c[1.3]:
Rename variable `string' to `str'; it conflicts with a typedef of the
same name. Change character constant '\=' to '='; former is undefined
escape sequence.

* microcode/psbtobin.c[9.34]:
Fix typo.

* microcode/fasl.h[9.28]:
Change conditionalization of `__GNU__' to `__GNUC__'. Fix bug in
`flush_input_buffer()' on USG systems: argument is `int', not `int *'.
Change file I/O to unbuffered; tty I/O remains buffered using stdio.
Opening fasl output file now deletes existing file first.

1988-04-25 Mark Friedman <[email protected]>

* compiler/rtlbase/rgraph.scm[4.2], compiler/rtlbase/rtlexp.scm[4.4],
compiler/rtlbase/rtlreg.scm[4.3]:
Added a FIXNUM type of register analagous to ADDRESS registers.
Their current use is to hold the results of OBJECT->FIXNUM expressions
and assignments of such registers to other registers. We have to tell
the cse code that such registers and expressions are invalid across
anything that can call the garbage collector. This is because the
garbage collector would currently barf on such values that have no
type codes (i.e. fixnums which have had their type codes removed).
In the future, FIXNUM registers may contain the reults of fixnum
arithmetic expressions, so that we are not doing so much boxing and
unboxing. Currently however, all such results are boxed into their
destinations.

* compiler/rtlbase/rtlty1.scm[4.5]:
Added the following RTL types for the support of fixnum operations:
FIXNUM-2-ARGS - for binary fixnum arithmetic operations
FIXNUM-1-ARG - for unary fixnum arithmetic operations
FIXNUM-PRED-2-ARGS - for binary fixnum predicates
FIXNUM-PRED-1-ARG - for unary fixnum-predicates
OBJECT->FIXNUM - for unboxing fixnum objects

1988-04-24 Chris Hanson <[email protected]>

* microcode/default.h[9.29]:
Remove random parens from end of #ifndef statements.

1988-04-23 Chris Hanson <[email protected]>

* compiler/machines/bobcat/rules3.scm[4.8]:
Add missing rule.

* sf/cgen.scm[3.6], sf/chtype.scm[1.3], sf/copy.scm[3.8],
sf/emodel.scm[3.5], sf/free.scm[3.4], sf/pardec.scm[3.7],
sf/subst.scm[3.9], sf/tables.scm[3.3], sf/toplev.scm[3.11],
sf/usicon.scm[3.4], sf/usiexp.scm[3.7], sf/xform.scm[3.8]:
Move all `integrate-external' declarations into the files, using
relative pathnames.

* sf/make.scm[4.3], sf/toplev.scm[3.10]:
Bind `sf/default-externs-pathname' to same directory as input file
when syntaxing a file. This is correct default for relative filenames
that appear in a file's declarations.

1988-04-22 Mark Friedman <[email protected]>

* compiler/machines/bobcat/instr2.scm[1.15]:
Fixed the MULS MULU DIVS and DIVU instructions; the operands were
reversed.
NOTE: The dissassembler totally screws up on these instructions.

* compiler/machines/bobcat/machin.scm[4.4]:
Added expression costs for fixnum expressions. These costs
are pretty rough. Someone who really understands the 68020
book should check them out.

* compiler/machines/bobcat/lapgen.scm[4.4],
compiler/rtlgen/opncod.scm[4.5]:
Added support for the open coding of fixnum arithmetic and fixnum predicates.

* compiler/machines/bobcat/rules1.scm[4.6],
compiler/machines/bobcat/rules2.scm[4.3]:
Added rules to support open coding of fixnum arithmetic.

1988-04-21 Guillermo J. Rozas <[email protected]>

* compiler/rtlgen/rgrval.scm[4.6]:
Fix a bug in "local lexprs". The arity encoding must include the
procedure object, even if it is only a virtual procedure object.

1988-04-15 Chris Hanson <[email protected]>

* microcode/version.h[10.32]:
Release 6.2.1

* microcode/gccode.h[9.38]:
Do not refer to `Scan' in `GC_NO_COMPILER_STMT', as it isn't defined
in all places that the macro is used.

* microcode/gccode.h[9.37]:
Fix compiled-code stubs to cast their value to some appropriate type.
Flush references to `To' since fasload does not define that variable.

1988-04-15 Guillermo J. Rozas <[email protected]>

* compiler/base/debug.scm[4.4], compiler/base/infnew.scm[4.2],
compiler/base/lvalue.scm[4.5], compiler/base/proced.scm[4.4],
compiler/base/scode.scm[4.3], compiler/base/switch.scm[4.4],
compiler/base/toplev.scm[4.6], compiler/base/utils.scm[4.4],
compiler/fggen/fggen.scm[4.5], compiler/fgopt/blktyp.scm[4.4],
compiler/fgopt/closan.scm[4.3],
compiler/machines/bobcat/dassm1.scm[4.4],
compiler/machines/bobcat/dassm3.scm[4.3],
compiler/machines/bobcat/decls.scm[4.4],
compiler/machines/bobcat/make.scm-68040[4.9],
compiler/rtlgen/rgproc.scm[4.3], compiler/rtlgen/rgrval.scm[4.5]:
Change the way first class environments are handled.
There is an extra phase at the front end which translates implicit
environment manipulation operations into explicit ones.

1988-04-12 Chris Hanson <[email protected]>

* compiler/rtlopt/ralloc.scm[1.14]:
Signal error if the number of temporary registers allocated exceeds
the number available for this machine.

1988-04-12 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/machin.scm[4.3.1.1]:
Add number-of-temporary-registers.

* runtime/boot.scm[13.45], sf/gconst.scm[3.7]:
Remove with-threaded-continuation and add copy-program.

1988-04-06 Chris Hanson <[email protected]>

* compiler/fgopt/closan.scm[4.2.1.1]:
Fix bug in closure-limit computation by simplifying closure limit to
trivial analysis. Later we will want to restore the full computation
by improving the closure invocation code. See the notes in this file
for details.

* compiler/base/debug.scm[4.3]:
Update `show-rtl-instruction' to know about new RTL statement types.

1988-04-03 Guillermo J. Rozas <[email protected]>

* microcode/fasdump.c[9.38], microcode/version.h[10.31]:
Fix bug backing out of fasdump when an environment object is
encountered.

1988-04-01 Chris Hanson <[email protected]>

* compiler/machines/bobcat/rules3.scm[4.7]:
Fix bug introduced in last change.

1988-03-31 Joe Marshall <[email protected]>

* microcode/string.c[9.30]:
allocate_string was allocating a word too many.

1988-03-31 Henry M. Wu <[email protected]>

* compiler/rtlgen/fndblk.scm[4.6]:
Trap trivial closures with error in `find-variable-internal'.

* compiler/rtlgen/opncod.scm[4.4]:
Add case to `subproblem->expression' for trivial closure consing.

1988-03-30 Chris Hanson <[email protected]>

* sf/make.scm[4.2], sf/toplev.scm[3.9], sf/toplev.scm[3.8],
sf/toplev.scm[3.7]:
Change time reports to match compiler.

1988-03-25 Brian A. LaMacchia <[email protected]>

* compiler/machines/vax/rules3.scm[4.6]:
Fixed direction of branch in rule.
It was backwards.

1988-03-25 Chris Hanson <[email protected]>

* compiler/back/lapgn2.scm[1.7],
compiler/machines/bobcat/lapgen.scm[4.3],
compiler/machines/bobcat/make.scm-68040[4.8],
compiler/machines/bobcat/rules1.scm[4.5],
compiler/machines/bobcat/rules3.scm[4.6]:
Add missing rule. Generalize `increment-anl' to
`increment-machine-register'. Generalize
`reuse-pseudo-register-alias!' to capture idea of reuse without making
assumptions about loading the target register from the source
register.

* sf/make.scm[4.1], sf/xform.scm[3.7]:
Really get these things working.

1988-03-24 Chris Hanson <[email protected]>

* microcode/boot.c[9.47], microcode/hooks.c[9.30],
microcode/prim.c[9.29], microcode/primutl.c[9.45],
microcode/utabmd.scm[9.44], microcode/version.h[10.30]:
* Delete `with-threaded-continuation' primitive.

* Implement `get-interrupt-enables' primitive.

* Split `primitive-type' and friends into two classes: one which is
gc-safe and touches arguments, the other non-safe with no touching.

* Implement primitive-procedure name aliasing in microcode. This
allows microcode name changes to reuse existing bands.

* Do not use "-q" ld switch. This causes lossage when Scheme is
loaded over NFS.

1988-03-23 Guillermo J. Rozas <[email protected]>

* microcode/interp.c[9.43]:
Add some overflow checking in entity apply code. It will not work in
fscheme/multischeme, but figuring out what the right thing to do there
is not easy.

1988-03-23 Joe Marshall <[email protected]>

* microcode/interp.c[9.42]:
Make Entity application check for interrupts to avoid blowing machine
away in the case of an entity's procedure being that entity.
This will allow you to abort if you are quick enough, but no stack
check is currently being done, so errors here would probably blow
scheme away anyhow.

1988-03-22 Joe Marshall <[email protected]>

* sf/subst.scm[3.8]:
Preserve the order of arguments in a let statement.

* sf/lsets.scm[1.2]:
Make set/adjoin not cons so much.

* sf/cgen.scm[3.5], sf/chtype.scm[1.2], sf/copy.scm[3.7],
sf/emodel.scm[3.4], sf/free.scm[3.3], sf/gconst.scm[3.6],
sf/make.scm[3.16], sf/object.scm[3.2], sf/pardec.scm[3.6],
sf/pthmap.scm[1.2], sf/subst.scm[3.7], sf/tables.scm[3.2],
sf/toplev.scm[3.6], sf/usicon.scm[3.3], sf/usiexp.scm[3.6],
sf/xform.scm[3.6]:
automagic-integrations

1988-03-21 Brian A. LaMacchia <[email protected]>

* compiler/machines/vax/rules2.scm[4.2]:
Had the right rule header, but wrong body.

* compiler/machines/vax/rules1.scm[4.4]:
Fixed more bugs.

* compiler/machines/vax/rules3.scm[4.5]:
fixed more bugs

* compiler/machines/vax/dassm2.scm[4.5]:
Fixed bug in offset symbols

1988-03-21 Guillermo J. Rozas <[email protected]>

* microcode/bchdmp.c[9.42], microcode/bchgcc.h[9.32],
microcode/bchgcl.c[9.33], microcode/bchmmg.c[9.41],
microcode/bchpur.c[9.39], microcode/comutl.c[1.12],
microcode/fasdump.c[9.37], microcode/fasload.c[9.36],
microcode/gccode.h[9.36], microcode/gcloop.c[9.28],
microcode/purify.c[9.33], microcode/version.h[10.29]:
Fix bchscheme to handle new representation of compiled procedures.
Add coerce-to-compiled-procedure primitive for inner loops.
Clean up some gc macros.

1988-03-14 Guillermo J. Rozas <[email protected]>

* compiler/back/lapgn2.scm[1.6], compiler/back/lapgn3.scm[4.2],
compiler/back/regmap.scm[4.2], compiler/base/lvalue.scm[4.4],
compiler/base/proced.scm[4.3], compiler/base/switch.scm[4.3],
compiler/base/toplev.scm[4.5], compiler/base/utils.scm[4.3],
compiler/fggen/fggen.scm[4.4], compiler/fgopt/blktyp.scm[4.3],
compiler/fgopt/order.scm[4.4],
compiler/machines/bobcat/decls.scm[4.3],
compiler/rtlbase/rtlcon.scm[4.5], compiler/rtlbase/rtlexp.scm[4.3],
compiler/rtlbase/rtlty1.scm[4.4], compiler/rtlbase/rtlty2.scm[4.3],
compiler/rtlgen/fndblk.scm[4.5], compiler/rtlgen/rgcomb.scm[4.4],
compiler/rtlgen/rgproc.scm[4.2], compiler/rtlgen/rgrval.scm[4.4],
compiler/rtlgen/rgstmt.scm[4.3], compiler/rtlgen/rtlgen.scm[4.4],
compiler/rtlopt/rcse1.scm[4.6], compiler/rtlopt/rcse2.scm[4.4]:
Change the representation of compiled procedures and other entries:
They are now just the address of an instruction with a gc offset
preceding the instruction and an arity/type word preceding that.
Compiled closures are done by creating a tiny fake compiled code block
which jumps to the right place and sets up the free variables for
reference.

Uuo style links are now just jump instructions to the correct address.
All relocators have been updated to reflect this change.

Variable caches have no type code. The relocators know about this.

New types:
TC_COMPILED_ENTRY
TC_MANIFEST_CLOSURE
TC_LINKAGE_SECTION

* compiler/machines/bobcat/dassm1.scm[4.3],
compiler/machines/bobcat/dassm2.scm[4.3],
compiler/machines/bobcat/instr2.scm[1.14],
compiler/machines/bobcat/lapgen.scm[4.2],
compiler/machines/bobcat/machin.scm[4.3],
compiler/machines/bobcat/make.scm-68040[4.7],
compiler/machines/bobcat/rules1.scm[4.4],
compiler/machines/bobcat/rules3.scm[4.5],
compiler/machines/bobcat/rules4.scm[4.2], runtime/unpars.scm[13.54],
runtime/utabs.scm[13.48]:
Change the representation of compiled procedures and other entries:
They are now just the address of an instruction with a gc offset
preceding the instruction and an arity/type word preceding that.
Compiled closures are done by creating a tiny fake compiled code block
which jumps to the right place and sets up the free variables for
reference.

Uuo style links are now just jump instructions to the correct address.
All relocators have been updated to reflect this change.

Variable caches have no type code. The relocators know about this.

Incorporate JRM's fix to signal to close interrupt gap in hp-ux.

New types:
TC_COMPILED_ENTRY
TC_MANIFEST_CLOSURE
TC_LINKAGE_SECTION

1988-03-13 Guillermo J. Rozas <[email protected]>

* microcode/interp.c[9.41]:
Forgot to add macro continuation lines to Apply_Error.

1988-03-12 Guillermo J. Rozas <[email protected]>

* microcode/bintopsb.c[9.34], microcode/comlin.c[1.2],
microcode/comutl.c[1.11], microcode/const.h[9.28],
microcode/errors.h[9.30], microcode/fasdump.c[9.36],
microcode/fasload.c[9.35], microcode/gccode.h[9.35],
microcode/gcloop.c[9.27], microcode/gctype.c[9.28],
microcode/interp.c[9.40], microcode/psbtobin.c[9.33],
microcode/purify.c[9.32], microcode/purutl.c[9.33],
microcode/returns.h[9.31], microcode/types.h[9.28],
microcode/utabmd.scm[9.43], microcode/utils.c[9.37],
microcode/version.h[10.28]:
Change the representation of compiled procedures and other entries:
They are now just the address of an instruction with a gc offset
preceding the instruction and an arity/type word preceding that.
Compiled closures are done by creating a tiny fake compiled code block
which jumps to the right place and sets up the free variables for
reference.

Uuo style links are now just jump instructions to the correct address.
All relocators have been updated to reflect this change.

Variable caches have no type code. The relocators know about this.

Incorporate JRM's fix to signal to close interrupt gap in hp-ux.

New types:
TC_COMPILED_ENTRY
TC_MANIFEST_CLOSURE
TC_LINKAGE_SECTION

1988-03-11 Arthur Gleckler <[email protected]>

* microcode/sgraph.h[1.2]:
Fixed screen dimensions by reducing STARBASE_XMAX and STARBASE_YMAX each by one.

1988-03-08 Brian A. LaMacchia <[email protected]>

* compiler/machines/vax/make.scm[4.3]:
Updated make file to include "CF" command
and match 68020 version.

* compiler/machines/vax/dassm2.scm[4.4]:
More bug fixes, dealing with word sizes and such.

1988-03-07 Brian A. LaMacchia <[email protected]>

* compiler/machines/vax/machin.scm[4.4]:
Added costs for ASSIGNMENT-CACHE and VARIABLE-CACHE.

1988-03-05 Chris Hanson <[email protected]>

* runtime/parse.scm[13.44]:
Fix weird bugs involving dot notation in lists. Unfortunately, the
fix fails to catch a class of error cases, namely

(1 . . (2))
(1 . . . ((2)))
etc.

Also install a switch to disable the feature of ignoring random close
parens from the console.

1988-03-02 Chris Hanson <[email protected]>

* microcode/pruxfs.c[9.27]:
Implement two new primitives, `file-directory?' and `file-symlink?'.
Change `file-attributes' to use `lstat' rather than `stat', and to
return more information about symbolic links.

1988-02-29 Chris Hanson <[email protected]>

* microcode/version.h[10.27]:
Reimplement unix I/O using buffered stdio instead of unbuffered
low-level I/O. The latter had bad performance on TTYs and possibly
other devices as well.

1988-02-28 Chris Hanson <[email protected]>

* sf/make.scm[3.15], sf/toplev.scm[3.5]:
Add new operation `sf/set-default-syntax-table!'.

1988-02-26 Chris Hanson <[email protected]>

* microcode/version.h[10.26]:
Reimplement `read' and `write' primitives to do retries in the case of
interrupts or premature completion.

1988-02-23 Brian A. LaMacchia <[email protected]>

* compiler/machines/vax/rules3.scm[4.4]:
Fixed bugs in dynamic link references (going
to wrong register and the like).

* compiler/machines/vax/rules1.scm[4.3]:
Added appropriate rules for dynamic links

* compiler/machines/vax/rgspcm.scm[4.1]:
Initial check-in for LIAR version 4...

* compiler/machines/vax/make.scm[4.2]:
Updated make to include disassembler-syntaxed
instruction files.

* compiler/machines/vax/machin.scm[4.3]:
Changed cost on (OBJECT->ADDRESS OBJECT->DATUM)

* compiler/machines/vax/insutl.scm[4.1]:
Initial check-in for LIAR 4.4...

* compiler/machines/vax/decls.scm[4.2]:
Fixed dependencies.

* compiler/machines/vax/assmd.scm[4.4]:
*** empty log message ***

1988-02-22 Guillermo J. Rozas <[email protected]>

* microcode/version.h[10.25]:
Fix bug in compiler_interrupt_procedure.

It was clobbering the dlink register, and this lost when gc was
disabled (and the gc interrupt ignored).

1988-02-21 Guillermo J. Rozas <[email protected]>

* runtime/intrpt.scm[13.48], runtime/system.scm[13.52]:
DISK-SAVE now returns false when dumped and true when restored.

the suspension interrupt handler uses this to exit after dumping but
not after restoring.

* microcode/version.h[10.24]:
SIGHUP causes suspension only when running in the forground.

SIGUSR1 causes suspension always.

1988-02-20 Guillermo J. Rozas <[email protected]>

* microcode/bchmmg.c[9.40], microcode/boot.c[9.46],
microcode/memmag.c[9.34], microcode/version.h[10.23]:
1) Patch compiler code interface problem:
Dynamic links were not saved when a procedure was interrupted.
The typical symptoms would be that the program would jump to
an unpredictable location after a garbage collection. This could
cause it do die with almost any signal, typically illegal instruction
and segmentation violation.

2) Add a gc counter for debugging purposes.

* microcode/bchdmp.c[9.41], microcode/bchgcc.h[9.31],
microcode/bchgcl.c[9.32], microcode/bchpur.c[9.38],
microcode/boot.c[9.45], microcode/fasdump.c[9.35],
microcode/gccode.h[9.34], microcode/gcloop.c[9.26],
microcode/interp.c[9.39], microcode/purify.c[9.31],
microcode/version.h[10.22]:
- Add code and data patch areas to cmp68020.s
- Clean up the display of interrupt character information in unix.c
- Change the interrupt characters in unix.c so it matches the sequences
used in emacs.
- Add a gc_death utility procedure which saves scan and free.

1988-02-19 Guillermo J. Rozas <[email protected]>

* compiler/back/bittop.scm[1.8], compiler/base/toplev.scm[4.4],
compiler/fgopt/contan.scm[4.4],
compiler/machines/bobcat/make.scm-68040[4.6],
compiler/machines/bobcat/rules1.scm[4.3],
compiler/machines/bobcat/rules3.scm[4.4]:
Fix a bug in the continuation analyzer which was causing the compiler
to avoid static links in cases where they were in fact needed.

Add a few missing code generation rules.

Make the compiler print its phase information in a nicer format.

Add a few top level utilities:

- cf (SFs your file first)

- compiler:batch-compile (not exported). In case of error it prints
the error information and aborts the current compilation, thus when
compiling multiple files (ie. compiling the compiler) it will continue
with the next one.

1988-02-18 Joe Marshall <[email protected]>

* runtime/unsyn.scm[13.49]:
*** empty log message ***

1988-02-17 Guillermo J. Rozas <[email protected]>

* compiler/back/bittop.scm[1.7],
compiler/machines/bobcat/assmd.scm[1.33],
compiler/machines/bobcat/make.scm-68040[4.5],
compiler/machines/bobcat/rules3.scm[4.3],
compiler/rtlbase/rtlty1.scm[4.3], compiler/rtlgen/rtlgen.scm[4.3],
compiler/rtlopt/rcse1.scm[4.5]:
1) Make assembler pad with ILLEGAL instructions.
2) Make the continuations for special primitive invocations not do a
heap/interrupt check.

1988-02-14 Panayotis Skordos <[email protected]>

* microcode/array.h[9.26]:
macro-improvements: macro local variables

* microcode/array.c[9.29]:
array-aperiodic-downsample dropped last element on odd lengths, fixed.

1988-02-12 Brian A. LaMacchia <[email protected]>

* compiler/machines/vax/lapgen.scm[4.5]:
Removed reference to frame pointer

1988-02-12 Guillermo J. Rozas <[email protected]>

* microcode/bchdmp.c[9.40], microcode/bchgcl.c[9.31],
microcode/bchpur.c[9.37], microcode/debug.c[9.28],
microcode/fasdump.c[9.34], microcode/gccode.h[9.33],
microcode/gcloop.c[9.25], microcode/gctype.c[9.27],
microcode/interp.c[9.38], microcode/ppband.c[9.32],
microcode/pruxfs.c[9.26], microcode/purify.c[9.30],
microcode/sdata.h[9.28], microcode/storage.c[9.42],
microcode/types.h[9.27], microcode/utabmd.scm[9.42],
microcode/version.h[10.21]:
1) Fix allocation bug in FILE-ATTRIBUTES.
2) Make some error messages nicer.
3) Add ENTITY and RATNUM types.
4) Add apply time support for ENTITYs.
5) Add a type code name table to types.h and storage.c .
6) Clean up some code in debug.c and Ppband.c .

1988-02-11 Brian A. LaMacchia <[email protected]>

* compiler/machines/vax/dassm2.scm[4.3],
compiler/machines/vax/machin.scm[4.2]:
Changed frame-pointer (which is no longer used) to dynamic-link (which
is)

* compiler/machines/vax/rules1.scm[4.2]:
Added ASSIGNMENT-CACHE rule (it was missing)

1988-02-10 Guillermo J. Rozas <[email protected]>

* runtime/error.scm[13.50]:
Add new fasload and fasdump errors from the microcode.
Make load-band (disk-restore) report some errors reasonably.

* microcode/bintopsb.c[9.33], microcode/fasload.c[9.34],
microcode/load.c[9.26], microcode/ppband.c[9.31],
microcode/psbmap.h[9.26], microcode/psbtobin.c[9.32]:
1) Update Psbtobin, Bintopsb, and Ppband to take care of compiled code
versions.
2) Make Psbtobin and Bintopsb use a new programmable command line
parser.

* microcode/fasl.h[9.27]:
Add conditionalization for load parameters.

1988-02-06 Guillermo J. Rozas <[email protected]>

* microcode/Attic/config.h[9.34], microcode/bchdmp.c[9.39],
microcode/boot.c[9.44], microcode/const.h[9.27],
microcode/dump.c[9.26], microcode/errors.h[9.29],
microcode/fasdump.c[9.33], microcode/fasl.h[9.26],
microcode/fasload.c[9.33], microcode/gccode.h[9.32],
microcode/load.c[9.25], microcode/ppband.c[9.30],
microcode/returns.h[9.30], microcode/storage.c[9.41],
microcode/utabmd.scm[9.41], microcode/version.h[10.20]:
1. Fix bug in relocation of entries into the compiler utilities
version.

2. Up the fasl version number. New format includes processor type,
compiled code interface version and band/"file" flag.

3. Fasdump complains when dumping an environment.

4. Error code names and various other items have been moved to
errors.h

1988-01-22 Chris Hanson <[email protected]>

* compiler/rtlbase/rtlcon.scm[4.4]:
`rtl:make-interpreter-call:cache-unassigned?' was defined with the
wrong number of arguments.

1988-01-18 Brian A. LaMacchia <[email protected]>

* compiler/machines/vax/dassm3.scm[1.2]:
*** empty log message ***

1988-01-15 Brian A. LaMacchia <[email protected]>

* compiler/machines/vax/lapgen.scm[4.4]:
Fixed entry points in calls to CCI routines

* compiler/machines/vax/dassm2.scm[4.2]:
Fixed entry points in calls to CCI routines.

1988-01-13 Brian A. LaMacchia <[email protected]>

* compiler/machines/vax/lapgen.scm[4.3]:
Popper code removed, comment added noting this

* compiler/machines/vax/lapgen.scm[4.2]:
*** empty log message ***

1988-01-12 Brian A. LaMacchia <[email protected]>

* compiler/machines/vax/rules3.scm[4.3]:
Fixed INVOCATION:PRIMITIVE and others

* compiler/machines/vax/assmd.scm[4.3]:
Fixed bug in instruction-insert!

1988-01-11 Brian A. LaMacchia <[email protected]>

* compiler/machines/vax/decls.scm[4.1]:
Initial check-in for version 4 compiler

1988-01-10 Panayotis Skordos <[email protected]>

* microcode/array.c[9.28]:
extended array-unary-function to do array-quantize (round, truncate)

1988-01-08 Brian A. LaMacchia <[email protected]>

* compiler/machines/vax/assmd.scm[4.2]:
Initial check-in for version 4 compiler

1988-01-07 Brian A. LaMacchia <[email protected]>

* compiler/machines/vax/dassm1.scm[4.1],
compiler/machines/vax/dassm2.scm[4.1],
compiler/machines/vax/machin.scm[4.1]:
Initial check-in for version 4 compiler

1988-01-07 Panayotis Skordos <[email protected]>

* microcode/array.c[9.27]:
trivia c_array_complex_multiply

* microcode/fft.c[9.23]:
added array-czt (chirp-z-transform)
added array-hanning (windowing)
fixed DFT definition to agree with Seibert

* microcode/array.h[9.25]:
added macro complex-multiply

1988-01-06 Brian A. LaMacchia <[email protected]>

* compiler/machines/vax/rules3.scm[4.2]:
Fixed some bugs...

1988-01-06 Chris Hanson <[email protected]>

* compiler/machines/bobcat/decls.scm[4.2]:
Must use ".bin" files rather than ".scm" files when enumerating
filenames, because the ".scm" files may not be present when loading
the compiler.

* compiler/machines/bobcat/make.scm-68040[4.4]:
Move "direct.scm" into the etc subdirectory.

1988-01-05 Brian A. LaMacchia <[email protected]>

* compiler/machines/vax/rules4.scm[4.1]:
Initial check-in for version 4 compiler

* compiler/machines/vax/lapgen.scm[4.1],
compiler/machines/vax/rules1.scm[4.1],
compiler/machines/vax/rules2.scm[4.1]:
Initial check-in for compiler version 4

* compiler/machines/vax/make.scm[4.1],
compiler/machines/vax/rules3.scm[4.1]:
Initial check-in for version 4 of compiler

1988-01-04 Chris Hanson <[email protected]>

* microcode/Attic/config.h[9.33], microcode/version.h[10.19]:
Fold several FASL types into one so that we can transfer compiled code
and other binary files between different machines with 68000 family
processors.

* microcode/bintopsb.c[9.32]:
Don't forget to set `compiled_p' flag when compiled code is found.

* microcode/psbtobin.c[9.31]:
Add changes to allow compiled code to appear in PSB files.

* compiler/fgopt/contan.scm[4.3]:
Static link analysis for reduction case was not exacting enough. Must
take into account the case where the places being reduced from are
invoked with different continuations.

1988-01-02 Chris Hanson <[email protected]>

* compiler/machines/bobcat/dassm3.scm[4.2]:
Fix bugs where immediate data and effective address were being read in
the wrong order.

* compiler/rtlgen/fndblk.scm[4.4]:
Fix bug -- locating closing block of closure whose parent is IC block.

* compiler/rtlgen/rgcomb.scm[4.3]:
Fix bug in invocation/lookup -- missing fetch.

* compiler/fgopt/offset.scm[4.2]:
Fix bug in codewalk -- was not looking at `procedure-values'.

* compiler/fggen/fggen.scm[4.3]:
Change generation of `delay' objects to use new format of promises
understood by the microcode. The compiled code directly generates a
promise object, which contains a compiled procedure of no arguments.
The microcode invokes this procedure to generate the result.

* compiler/machines/bobcat/make.scm-68040[1.46.1.3],
compiler/machines/bobcat/rules3.scm[1.18.1.1]:
Bug fixes to lexpr primitive calling sequence.

* runtime/where.scm[13.44]:
Change definitions and names of operations on objects whose type is
`delayed'. Old name for such objects was `delayed-evaluation', new
name is `promise'. The microcode has been extended to allow a new
kind of `promise', distinguished by a fixnum zero in its car, whose
cdr is a procedure of no arguments which is applied to get the value.
This is used to support compiled promises.

* microcode/hooks.c[9.29], microcode/version.h[10.18]:
Changes to `force' primitive to support compiled `delay'. Bug fixes
to "regex.c" from JRM.

1987-12-31 Chris Hanson <[email protected]>

* compiler/base/macros.scm[4.4]:
Change macros because of randomness in scode-optimizer.

* compiler/machines/bobcat/rules2.scm[4.2]:
Add missing rule for type-test of offset memory location.

* compiler/base/cfg1.scm[4.3], compiler/base/lvalue.scm[4.3],
compiler/base/macros.scm[4.3], compiler/base/rvalue.scm[4.2]:
Change particular constructors from procedures to macros so we can
inline code them as calls to `vector', rather than as lexpr primitives
which call `list->vector'.

* compiler/fgopt/order.scm[4.3],
compiler/machines/bobcat/rules1.scm[4.2],
compiler/rtlbase/rtlcon.scm[4.3], compiler/rtlbase/rtlexp.scm[4.2],
compiler/rtlbase/rtlty2.scm[4.2], compiler/rtlgen/fndblk.scm[4.3],
compiler/rtlgen/opncod.scm[4.3]:
Implement open coding of `vector' primitive. Change primitive open
coding so that arguments which are known constants or references to
known locations do not use intermediate registers if possible.

* compiler/rtlopt/rcse1.scm[4.4], compiler/rtlopt/rcse2.scm[4.3],
compiler/rtlopt/rcseep.scm[4.2]:
Change treatment of interpreter memory registers so that they do not
cause invalidation of random memory addresses. No other pointers will
ever point into that address block.

* compiler/machines/bobcat/dassm1.scm[4.2],
compiler/machines/bobcat/dassm2.scm[4.2]:
Change symbol table representation for disassembler so that it can
find multiple symbols with the same offset and print them. Also
needed to find when one of the symbols is external but not all of
them.

* compiler/rtlopt/rcse1.scm[4.3]:
Must invalidate memory for all assignments. Was losing in case where
destination of assignment was non-volatile and source was volatile.

1987-12-31 Panayotis Skordos <[email protected]>

* microcode/array.h[9.24]:
Changed the name of local variable in loop macros to
avoid conflict/shadowing of other variables.
"i" ----> "mcrindx".

1987-12-30 Chris Hanson <[email protected]>

* compiler/machines/bobcat/rules3.scm[4.2]:
Fix stupid bugs relating to invocation of lexpr primitives.

* compiler/rtlgen/rgrval.scm[4.3]:
The procedure's name is not a variable, just a symbol now.

* compiler/base/toplev.scm[4.3]:
*ic-procedure-headers* needs to associate with external labels, not
internal ones.

* compiler/machines/bobcat/make.scm-68040[4.3]:
Split alpha subdirectory into fggen and fgopt.

* compiler/machines/bobcat/make.scm-68040[4.2]:
Move butils to etc subdirectory.

* compiler/back/insseq.scm[4.1], compiler/back/lapgn1.scm[4.1],
compiler/back/lapgn3.scm[4.1], compiler/back/linear.scm[4.1],
compiler/back/regmap.scm[4.1], compiler/base/blocks.scm[4.2],
compiler/base/cfg1.scm[4.2], compiler/base/cfg2.scm[4.2],
compiler/base/cfg3.scm[4.1], compiler/base/contin.scm[4.2],
compiler/base/ctypes.scm[4.2], compiler/base/debug.scm[4.2],
compiler/base/infnew.scm[4.1], compiler/base/lvalue.scm[4.2],
compiler/base/macros.scm[4.2], compiler/base/proced.scm[4.2],
compiler/base/scode.scm[4.2], compiler/base/subprb.scm[4.2],
compiler/base/switch.scm[4.2], compiler/base/toplev.scm[4.2],
compiler/base/utils.scm[4.2], compiler/fggen/fggen.scm[4.2],
compiler/fgopt/blktyp.scm[4.2], compiler/fgopt/closan.scm[4.2],
compiler/fgopt/conect.scm[4.1], compiler/fgopt/contan.scm[4.2],
compiler/fgopt/folcon.scm[4.2], compiler/fgopt/offset.scm[4.1],
compiler/fgopt/operan.scm[4.2], compiler/fgopt/order.scm[4.2],
compiler/fgopt/outer.scm[4.3], compiler/fgopt/simapp.scm[4.2],
compiler/fgopt/simple.scm[4.2],
compiler/machines/bobcat/dassm1.scm[4.1],
compiler/machines/bobcat/dassm2.scm[4.1],
compiler/machines/bobcat/dassm3.scm[4.1],
compiler/machines/bobcat/decls.scm[4.1],
compiler/machines/bobcat/lapgen.scm[4.1],
compiler/machines/bobcat/machin.scm[4.2],
compiler/machines/bobcat/make.scm-68040[4.1],
compiler/machines/bobcat/rgspcm.scm[4.1],
compiler/machines/bobcat/rules1.scm[4.1],
compiler/machines/bobcat/rules2.scm[4.1],
compiler/machines/bobcat/rules3.scm[4.1],
compiler/machines/bobcat/rules4.scm[4.1],
compiler/rtlbase/rtlcfg.scm[4.2], compiler/rtlbase/rtlcon.scm[4.2],
compiler/rtlbase/rtline.scm[4.2], compiler/rtlbase/rtlobj.scm[4.2],
compiler/rtlbase/rtlreg.scm[4.2], compiler/rtlbase/rtlty1.scm[4.2],
compiler/rtlgen/fndblk.scm[4.2], compiler/rtlgen/opncod.scm[4.2],
compiler/rtlgen/rgcomb.scm[4.2], compiler/rtlgen/rgretn.scm[4.2],
compiler/rtlgen/rgrval.scm[4.2], compiler/rtlgen/rgstmt.scm[4.2],
compiler/rtlgen/rtlgen.scm[4.2], compiler/rtlopt/rcse1.scm[4.2],
compiler/rtlopt/rcse2.scm[4.2], compiler/rtlopt/rcseht.scm[4.2]:
Final check-in for version 4.1 of compiler.

1987-12-30 Joe Marshall <[email protected]>

* microcode/regex.c[1.6]:
re_compile_fastmap
1) regexpcode_exact_n grabbed wrong character (wrong index)
2) regexpcode_any_char fell into next case (no goto)

RE_SEARCH_FORWARD_FAST
Conditional backward

RE_SEARCH_BACKWARD_FAST
Conditional backward

1987-12-23 Chris Hanson <[email protected]>

* microcode/findprim.c[9.33]:
Implement `LEXPR' primitive arity, which translates to `-1'.

* runtime/vector.scm[13.45], sf/gconst.scm[3.5], sf/make.scm[3.14],
sf/usiexp.scm[3.5]:
Implement `vector' as primitive.

* microcode/vector.c[9.30]:
Implement `vector' primitive.

* microcode/version.h[10.17]:
Implement `vector' primitive. Add some machinery to facilitate
definition of other lexpr primitives.

* microcode/prims.h[9.32]:
Implement more argument macros. Implement two new macros, `ARG_LOC'
and `LEXPR_N_ARGUMENTS', to facilitate writing lexpr primitives.

* microcode/interp.h[9.29]:
Implement more powerful operations for manipulating stack locatives.
These are useful for writing lexpr primitives.

1987-12-18 Chris Hanson <[email protected]>

* compiler/machines/bobcat/make.scm-68040[1.46.1.2],
compiler/rtlgen/rtlgen.scm[1.20.1.1]:
If a predicate is known not to take one of its branches, do not
generate code for that branch. This prevents generation of dead code,
which subsequently screws up the compiler in later phases, due to the
existence of continuations which are never referenced.

* microcode/pruxfs.c[9.25], microcode/version.h[10.16]:
Alter `OS_tty_read_char' under unix so that it echoes the input if the
standard input is a file.

1987-12-17 Chris Hanson <[email protected]>

* runtime/string.scm[13.43], sf/gconst.scm[3.4]:
Define `string-hash-mod' in the global environment.

* microcode/vector.c[9.29]:
Typo in `subvector_move_prefix'.

1987-12-16 Chris Hanson <[email protected]>

* microcode/version.h[10.15]:
Fix several bugs in "vector.c" found by Morry Katz, mostly having to
do with indices not being checked to eliminate negative numbers.
Reorganize and update all of the code.

* microcode/vector.c[9.28]:
Fix several bugs found by Morry Katz, mostly having to do with indices
not being checked to eliminate negative numbers. Reorganize and
update all of the code.

1987-12-15 Chris Hanson <[email protected]>

* microcode/version.h[10.14]:
Make `arg_channel' be a public function per request of AAB.

1987-12-14 Chris Hanson <[email protected]>

* microcode/sysprim.c[9.28], microcode/version.h[10.13],
runtime/intrpt.scm[13.47], runtime/sysclk.scm[13.42]:
Change `System_Clock' to `OS_process_clock', scaling in milliseconds
instead of centiseconds. Implement `real-time-clock' primitive.
Implement "suspension" feature which generates special interrupt.
This feature is activated by SIGHUP.

1987-12-13 Chris Hanson <[email protected]>

* microcode/utabmd.scm[9.40]:
Update this to match microcode.

* microcode/intrpt.h[1.3]:
Add new interrupt code which means that the interpreter was
requested to exit by some external source.

* microcode/errors.h[9.28], microcode/storage.c[9.40]:
Add new termination code which means that the interpreter was
requested to exit by some external source.

* microcode/default.h[9.28], microcode/extern.h[9.29]:
Change `System_Clock' to `OS_process_clock', scaling in milliseconds
instead of centiseconds.

1987-12-13 Panayotis Skordos <[email protected]>

* microcode/array.c[9.26]:
fixed histogram

1987-12-12 Panayotis Skordos <[email protected]>

* microcode/array.c[9.25]:
Added array-read-ascii-file, array-write-ascii-file
Removed array-log! (covered by array-unary-function!).

* microcode/fft.c[9.22]:
*** empty log message ***

1987-12-11 Chris Hanson <[email protected]>

* runtime/defstr.scm[1.7]:
Fix mistaken bug fix of last revision.

1987-12-10 Chris Hanson <[email protected]>

* runtime/defstr.scm[1.6]:
The type object being constructed for named structures of type LIST
was incorrect.

1987-12-09 Guillermo J. Rozas <[email protected]>

* microcode/comutl.c[1.10], microcode/version.h[10.12]:
Add the STACK-TOP-ADDRESS primitive to comutl.c for use by the
compiled code debugger.

* runtime/debug.scm[13.46]:
Typo.

* runtime/debug.scm[13.45]:
Add hooks for the compiled code debugger.

* microcode/bchpur.c[9.36]:
Fix bug in purify

Under some circumstances (prob = 1/512) a bufferfull was lost between
the pure copy and the constant copy, because the header overflowed the
free buffer, and the free buffer dumping code assumed that the buffer
would be dumped when scan was dumped, but scan was reinitialized
immediately.

* compiler/machines/bobcat/make.scm-68040[1.46.1.1]:
1) Update the list of unsafe primitives to match the microcode.
2) Install JRM's changes to the debugging information code for use by
the debugger.

* compiler/base/utils.scm[1.92.1.1]:
Update the list of unsafe primitives to match the microcode.

1987-12-09 Joe Marshall <[email protected]>

* microcode/rgxprim.c[1.6]:
Fix RE-CHAR-SET-ADJOIN! to have arg_ascii_integer.

1987-12-08 Chris Hanson <[email protected]>

* runtime/defstr.scm[1.5]:
Implement error message for unrecognized slot options.

* compiler/rtlopt/rcse1.scm[4.1], compiler/rtlopt/rcse2.scm[4.1],
compiler/rtlopt/rcseep.scm[4.1], compiler/rtlopt/rcseht.scm[4.1],
compiler/rtlopt/rcserq.scm[4.1], compiler/rtlopt/rcsesr.scm[4.1]:
Major redesign of front end of compiler. Continuations are now
modeled more exactly by means of a CPS-style analysis. Poppers have
been flushed in favor of dynamic links, and optimizations have been
added that eliminate the use of static and dynamic links in many
cases.

* microcode/version.h[10.2.1.2], runtime/emacs.scm[13.47.1.1],
runtime/intrpt.scm[13.44.1.1]:
Changes to make Emacs control-g synchronization code compatible with
BSD and ptys.

1987-12-05 Chris Hanson <[email protected]>

* runtime/debug.scm[13.44], runtime/emacs.scm[13.50],
runtime/rep.scm[13.43], runtime/where.scm[13.43]:
Change Emacs interface to have special mode for `debug' and `where'.

1987-12-04 Chris Hanson <[email protected]>

* compiler/fgopt/blktyp.scm[4.1], compiler/fgopt/outer.scm[4.2]:
*** empty log message ***

* compiler/base/blocks.scm[4.1], compiler/base/cfg1.scm[4.1],
compiler/base/cfg2.scm[4.1], compiler/base/contin.scm[4.1],
compiler/base/ctypes.scm[4.1], compiler/base/debug.scm[4.1],
compiler/base/enumer.scm[4.1], compiler/base/lvalue.scm[4.1],
compiler/base/macros.scm[4.1], compiler/base/object.scm[4.1],
compiler/base/proced.scm[4.1], compiler/base/rvalue.scm[4.1],
compiler/base/scode.scm[4.1], compiler/base/sets.scm[4.1],
compiler/base/subprb.scm[4.1], compiler/base/switch.scm[4.1],
compiler/base/toplev.scm[4.1], compiler/base/utils.scm[4.1],
compiler/fggen/fggen.scm[4.1], compiler/fgopt/closan.scm[4.1],
compiler/fgopt/contan.scm[4.1], compiler/fgopt/desenv.scm[4.1],
compiler/fgopt/folcon.scm[4.1], compiler/fgopt/operan.scm[4.1],
compiler/fgopt/order.scm[4.1], compiler/fgopt/outer.scm[4.1],
compiler/fgopt/simapp.scm[4.1], compiler/fgopt/simple.scm[4.1],
compiler/machines/bobcat/machin.scm[4.1],
compiler/rtlbase/rgraph.scm[4.1], compiler/rtlbase/rtlcfg.scm[4.1],
compiler/rtlbase/rtlcon.scm[4.1], compiler/rtlbase/rtlexp.scm[4.1],
compiler/rtlbase/rtline.scm[4.1], compiler/rtlbase/rtlobj.scm[4.1],
compiler/rtlbase/rtlreg.scm[4.1], compiler/rtlbase/rtlty1.scm[4.1],
compiler/rtlbase/rtlty2.scm[4.1], compiler/rtlgen/fndblk.scm[4.1],
compiler/rtlgen/opncod.scm[4.1], compiler/rtlgen/rgcomb.scm[4.1],
compiler/rtlgen/rgproc.scm[4.1], compiler/rtlgen/rgretn.scm[4.1],
compiler/rtlgen/rgrval.scm[4.1], compiler/rtlgen/rgstmt.scm[4.1],
compiler/rtlgen/rtlgen.scm[4.1]:
Major redesign of front end of compiler. Continuations are now
modeled more exactly by means of a CPS-style analysis. Poppers have
been flushed in favor of dynamic links, and optimizations have been
added that eliminate the use of static and dynamic links in many
cases.

1987-12-04 Guillermo J. Rozas <[email protected]>

* microcode/bchdmp.c[9.38], microcode/bchmmg.c[9.39],
microcode/bkpt.h[9.24], microcode/boot.c[9.43],
microcode/const.h[9.26], microcode/debug.c[9.27],
microcode/dmpwrld.c[9.26], microcode/errors.h[9.27],
microcode/extern.c[9.25], microcode/fasdump.c[9.32],
microcode/fasload.c[9.32], microcode/findprim.c[9.32],
microcode/futures.h[9.23], microcode/gc.h[9.25],
microcode/intercom.c[9.24], microcode/interp.c[9.37],
microcode/interp.h[9.28], microcode/memmag.c[9.33],
microcode/object.h[9.27], microcode/prim.h[9.39],
microcode/prims.h[9.31], microcode/primutl.c[9.44],
microcode/step.c[9.24], microcode/storage.c[9.39],
microcode/utils.c[9.36], microcode/version.h[10.11]:
Some changes to make calling primitives from compiled code cheaper:

- Primitives back out in the interpreter, rather than directly.
- A table with the arity in bytes has been added to usrdef.c
- Primitive objects have two fields: a table index for invocation,
and a virtual number for bookkeeping purposes. The table index is
always valid, even for unimplemented primitives. In this case it
points to a procedure which causes an UNIMPLEMENTE-PRIMITIVE error
when invoked. The back out mechanism takes care

* compiler/machines/bobcat/rules3.scm[1.18]:
Patch because compiled-error-procedure is not a real primitive. It's
arity cannot be found.

* compiler/machines/bobcat/make.scm-68040[1.46],
compiler/machines/bobcat/rules3.scm[1.17]:
Get the compiler ready for "lexpr" primitives.

* microcode/version.h[10.10]:
Makefile 9.59
Findprim.c 9.31
unix.c 9.45
cmp68020.s 9.63

Update Makefile to match the new C compiler.
Add missing declaration in Findprim.c noticed in VMS.
Invert name of cpp option in unix.c .
Fix restarting bugs in cmp68020.s .

1987-12-03 Guillermo J. Rozas <[email protected]>

* microcode/findprim.c[9.31]:
Add declaration for VMS.

1987-12-01 Joe Marshall <[email protected]>

* microcode/syntax.c[1.8]:
Fix end of SCAN-SEXPS-FORWARD to return a valid object.

1987-11-25 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/lapgen.scm[1.191]:
Add reg:lexpr-primitive-arity and entry:compiler-primitive-lexpr-apply

1987-11-24 Guillermo J. Rozas <[email protected]>

* microcode/bchdmp.c[9.37]:
Fix a couple of minor (although fatal) bugs:

- lseek was being invoked with arguments in the wrong order.

- table_end was being used instead of table_top in the call to
initialize_primitive_table.

1987-11-24 Joe Marshall <[email protected]>

* runtime/unxpth.scm[1.8]:
Fix typo in PARSE-NAME that caused "." to parse into ".."

1987-11-23 Chris Hanson <[email protected]>

* microcode/version.h[10.9]:
Change `OS_working_dir_pathname' to attempt to use `getcwd' first,
then default to the user's home directory if that fails.

* microcode/pruxfs.c[9.24]:
Previous changes introduced dependency on "string.h".

* microcode/syntax.c[1.7]:
Shorten names of some files to allow Emacs version numbers to be used
on ATT file systems. Add alternative primitive definition macro which
works correctly with Emacs tags tables.

`STRING->SYNTAX-ENTRY' was not allowing trailing spaces in the
argument.

`SCAN-SEXPS-FORWARD' was returning #F under some circumstances,
instead of a state vector.

* microcode/bintopsb.c[9.31], microcode/bitstr.c[9.36],
microcode/boot.c[9.42], microcode/char.c[9.24],
microcode/findprim.c[9.30], microcode/intern.c[9.44],
microcode/pruxfs.c[9.23], microcode/psbtobin.c[9.30],
microcode/regex.c[1.5], microcode/rgxprim.c[1.5],
microcode/string.c[9.29], microcode/version.h[10.8]:
Shorten names of some files to allow Emacs version numbers to be used
on ATT file systems. Add alternative primitive definition macro which
works correctly with Emacs tags tables.

* microcode/prims.h[9.30]:
Add alternative primitive definition macro which works correctly with
Emacs tags tables.

* microcode/psbmap.h[9.25], microcode/scheme.h[9.28]:
Shorten names of some files to allow Emacs version numbers to be used
on ATT file systems.

1987-11-22 Chris Hanson <[email protected]>

* runtime/emacs.scm[13.49]:
Remove code for `check-and-clean-up-interrupt-channel'. This has been
moved to two places: (1) the buffer-flushing code has moved into the
microcode, and (2) the interrupt acknowledgement has been moved to the
interrupt system.

* runtime/intrpt.scm[13.46]:
Change ^G interrupt handler to signal Emacs indicating that the
interrupt has been received.

1987-11-21 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/make.scm-68040[1.45]:
Some bug fixes by CPH.
Change to make primitives be renumbered by the fasloader.
When make is loaded it now asks whether it should be loaded compiled
or interpreted.

* compiler/machines/bobcat/rules3.scm[1.16]:
Primitives are fecthed from the constant block, and passed as objects
to the appropriate microcode utility.

* compiler/back/lapgn3.scm[1.5]:
Abstract the constant object to label procedures.

* compiler/base/utils.scm[1.92]:
Primitives are no longer considered non-pointers by the compiler.
They must appear in the constant block (rather than as immediate
constants in the instruction stream) so the fasloader can renumber
them.

* runtime/msort.scm[13.42]:
Rewrite sort!, uncomment it, and make sort handle vectors and do some
argument checking.

* runtime/gensym.scm[13.42]:
Use number->string directly rather than write-to-string.

1987-11-20 Guillermo J. Rozas <[email protected]>

* microcode/bintopsb.c[9.30], microcode/hooks.c[9.28],
microcode/interp.c[9.36], microcode/interp.h[9.27],
microcode/intrpt.h[1.2], microcode/psbmap.h[9.24],
microcode/psbtobin.c[9.29], microcode/stack.h[9.25],
microcode/version.h[10.5]:
1) The version of memtop used by compiled code was being set to the
opposite value from that desired.

2) Eliminate all remaining uses of Request_Interrupt .

3) Clean up the eventual pushing stuff in interpret.c .

4) Fix a potential stacklet bug in error-procedure.

5) Make the compiled code interface always update memtop on interrupts
or gc.

6) Eliminate some code in non-stacklet version in interpret.c

7) Bintopsb and Psbtobin have been updated to handle compiled code.

1987-11-20 Panayotis Skordos <[email protected]>

* microcode/array.c[9.24]:
Array-Make-Histogram was using (n-1) bins when asked for n-bin
histogram. Fixed.

1987-11-18 Chris Hanson <[email protected]>

* compiler/machines/bobcat/rules1.scm[1.8]:
Fix bug in rule: target register being allocated BEFORE deletion of
dead registers rather than AFTER.

1987-11-18 Guillermo J. Rozas <[email protected]>

* microcode/boot.c[9.41], microcode/primutl.c[9.43],
microcode/version.h[10.4]:
Some changes for primitives accessed specially from compiled code
(arithmetic).

* microcode/extern.c[9.24], microcode/primutl.c[9.42]:
Allow #T as a parameter make tohe microcode version of
make-primitive-procedure.

1987-11-17 Chris Hanson <[email protected]>

* runtime/scan.scm[13.42]:
Fix bug in `scan-defines' in which an open-block whose body was
another open-block was not being scanned correctly. This resulted in
`sf' creating weird output when there were declarations being passed
to the compiler, that subsequently confused the compiler into
signalling an error.

1987-11-17 Guillermo J. Rozas <[email protected]>

* runtime/Attic/syntax.scm[13.51], runtime/emacs.scm[13.48],
runtime/error.scm[13.49], runtime/intrpt.scm[13.45],
runtime/system.scm[13.51], runtime/unpars.scm[13.53],
runtime/unsyn.scm[13.48], runtime/utabs.scm[13.47]:
There is now a single kind of primitive. Both mechanisms have been
merged.

* microcode/bchdmp.c[9.36]:
Forgot back-slashes in a C preprocessor macro.

* microcode/bchdmp.c[9.35], microcode/bchmmg.c[9.38],
microcode/bchpur.c[9.35], microcode/bignum.c[9.25],
microcode/bintopsb.c[9.29], microcode/bitstr.c[9.35],
microcode/boot.c[9.40], microcode/char.c[9.23],
microcode/comutl.c[1.9], microcode/const.h[9.25],
microcode/daemon.c[9.25], microcode/debug.c[9.26],
microcode/dump.c[9.25], microcode/errors.h[9.26],
microcode/extern.c[9.23], microcode/extern.h[9.28],
microcode/fasdump.c[9.31], microcode/fasl.h[9.25],
microcode/fasload.c[9.31], microcode/findprim.c[9.29],
microcode/fixnum.c[9.25], microcode/flonum.c[9.24],
microcode/future.c[9.25], microcode/gc.h[9.24],
microcode/gccode.h[9.31], microcode/gctype.c[9.26],
microcode/generic.c[9.25], microcode/hooks.c[9.27],
microcode/hunk.c[9.24], microcode/intern.c[9.43],
microcode/interp.c[9.35], microcode/interp.h[9.26],
microcode/list.c[9.25], microcode/load.c[9.24],
microcode/lookup.c[9.38], microcode/memmag.c[9.32],
microcode/ppband.c[9.29], microcode/prim.c[9.28],
microcode/prim.h[9.38], microcode/prims.h[9.29],
microcode/primutl.c[9.41], microcode/psbmap.h[9.23],
microcode/psbtobin.c[9.28], microcode/purify.c[9.29],
microcode/purutl.c[9.32], microcode/rgxprim.c[1.4],
microcode/scheme.h[9.27], microcode/sdata.h[9.27],
microcode/stack.h[9.24], microcode/step.c[9.23],
microcode/storage.c[9.38], microcode/string.c[9.28],
microcode/syntax.c[1.6], microcode/sysprim.c[9.27],
microcode/types.h[9.26], microcode/utabmd.scm[9.39],
microcode/utils.c[9.35], microcode/vector.c[9.27],
microcode/version.h[10.3], microcode/xdebug.c[9.23]:
1) There is now only one kind of primitive. External primitives have
disappeared, and "user" primitives have the same status as "built-in"
primitives.

2) bin files only contain those primitives actually referenced in the
file.

3) Strings now always use 32 bit counts.

4) Interrupt code and mask manipulation has been rewritten.

5) Findprim outputs the list of primitives sorted alphabetically by
the linkage name. This is used to advantage by the primitive
searching mechanism, which now uses binary sear

1987-11-12 Chris Hanson <[email protected]>

* microcode/version.h[10.2.1.1]:
Release version 6.1

1987-11-09 Chris Hanson <[email protected]>

* microcode/sysprim.c[9.26]:
Stupid typo.

* microcode/sysprim.c[9.25]:
Update the compiler memtop register when clearing timer interrupt.

1987-11-04 Chris Hanson <[email protected]>

* microcode/version.h[10.2]:
Conditionalize `tbuffer' definition in "vms.c" by means of an explicit
switch. This definition does not appear to depend on the VMS version.

Shorten some names to 31 characters to make VMS compiler happy.

* microcode/Attic/config.h[9.32]:
Conditionalize `tbuffer' definition in "vms.c" by means of an explicit
switch. This definition does not appear to depend on the VMS version.

* microcode/interp.c[9.34], microcode/lookup.c[9.37],
microcode/returns.h[9.29]:
Shorten names to 31 characters to make VMS compiler happy.

1987-10-28 Guillermo J. Rozas <[email protected]>

* microcode/prim.h[9.37]:
Make_Prim_Exts does not need to be available to everyone.

* microcode/sysprim.c[9.24]:
Fix a delcaration bug in SET-RUN-LIGHT!

* microcode/prim.c[9.27]:
Fix a grouping (parenthesis) bug in cell?

1987-10-27 Guillermo J. Rozas <[email protected]>

* microcode/findprim.c[9.28]:
Make Findprim sort the entries using the scheme linkage name as the
key. This allows for faster lookup.

1987-10-27 Joe Marshall <[email protected]>

* edwin/argred.scm[1.26], edwin/autold.scm[1.37],
edwin/autosv.scm[1.17], edwin/basic.scm[1.93],
edwin/bufcom.scm[1.79], edwin/buffer.scm[1.126],
edwin/buffrm.scm[1.27], edwin/bufmnu.scm[1.107],
edwin/bufset.scm[1.5], edwin/bufwfs.scm[1.2],
edwin/bufwin.scm[1.273], edwin/bufwiu.scm[1.3],
edwin/bufwmc.scm[1.1], edwin/c-mode.scm[1.40], edwin/calias.scm[1.1],
edwin/class.scm[1.65], edwin/comman.scm[1.54],
edwin/comred.scm[1.69], edwin/comtab.scm[1.49],
edwin/comwin.scm[1.132], edwin/curren.scm[1.78],
edwin/debuge.scm[1.34], edwin/dired.scm[1.96],
edwin/editor.scm[1.181], edwin/edtfrm.scm[1.71],
edwin/evlcom.scm[1.10], edwin/filcom.scm[1.128],
edwin/fileio.scm[1.85], edwin/fill.scm[1.40], edwin/hlpcom.scm[1.84],
edwin/image.scm[1.121], edwin/info.scm[1.86], edwin/input.scm[1.75],
edwin/intmod.scm[1.28], edwin/keymap.scm[1.4],
edwin/kilcom.scm[1.55], edwin/kmacro.scm[1.27],
edwin/lincom.scm[1.100], edwin/linden.scm[1.113],
edwin/lspcom.scm[1.147], edwin/macros.scm[1.42],
edwin/midas.scm[1.11], edwin/modefs.scm[1.113],
edwin/modes.scm[1.20], edwin/modwin.scm[1.25],
edwin/motcom.scm[1.36], edwin/motion.scm[1.77],
edwin/nvector.scm[1.5], edwin/pasmod.scm[1.39],
edwin/prompt.scm[1.129], edwin/reccom.scm[1.9],
edwin/regcom.scm[1.14], edwin/regexp.scm[1.44],
edwin/regops.scm[1.77], edwin/replaz.scm[1.62], edwin/ring.scm[1.7],
edwin/schmod.scm[1.6], edwin/screen.scm[1.77],
edwin/search.scm[1.143], edwin/sercom.scm[1.51],
edwin/simple.scm[1.24], edwin/strpad.scm[1.2],
edwin/strtab.scm[1.38], edwin/struct.scm[1.63],
edwin/syntax.scm[1.64], edwin/tagutl.scm[1.28],
edwin/texcom.scm[1.29], edwin/things.scm[1.74],
edwin/tparse.scm[1.62], edwin/tximod.scm[1.9], edwin/undo.scm[1.41],
edwin/utils.scm[1.9], edwin/utlwin.scm[1.48], edwin/wincom.scm[1.88],
edwin/window.scm[1.143], edwin/xform.scm[1.3],
runtime/rgxcmp.scm[1.97]:
initial revision

1987-10-24 Panayotis Skordos <[email protected]>

* microcode/array.c[9.23]:
Added array-unary-function! making available (for arrays) all HPUX
math functions.

1987-10-21 Panayotis Skordos <[email protected]>

* microcode/image.c[9.25]:
Fixed image-make-ring (typo in argument-range-checking).

1987-10-19 Panayotis Skordos <[email protected]>

* microcode/array.h[9.23]:
Rewrote some comments and trivia, and moved/added some macros for
arrays.

* microcode/array.c[9.22]:
Added array-division, rewrote some comments and trivia, and moved some
macros to array.h

1987-10-14 Chris Hanson <[email protected]>

* runtime/defstr.scm[1.4]:
Fix bug: missing integration declarations prevent proper inline coding
of structure accessors.

1987-10-13 Panayotis Skordos <[email protected]>

* microcode/image.c[9.24]:
Fixed typo in C_Image_Periodic_Shift: "-" should be "+" for negative
shifts. The bug had not detected because positive shifts worked just
fine.

1987-10-12 Chris Hanson <[email protected]>

* runtime/histry.scm[13.49]:
Fix bug introduced with removal of danger bits. EQ? cannot be used to
compare two reduction pointers or two vertebra pointers since they can
have different types.

1987-10-09 Chris Hanson <[email protected]>

* runtime/emacs.scm[13.47]:
Do not transmit "end-of-control-g" sequence back to emacs unless the
interrupt character is really a control g.

1987-10-09 Guillermo J. Rozas <[email protected]>

* microcode/version.h[10.1]:
New microcode version.

* microcode/bchmmg.c[9.37], microcode/bitstr.c[9.34],
microcode/boot.c[9.39], microcode/cmpint.h[10.1],
microcode/future.c[9.24], microcode/gc.h[9.23],
microcode/gccode.h[9.30], microcode/gctype.c[9.25],
microcode/history.h[9.23], microcode/hooks.c[9.26],
microcode/hunk.c[9.23], microcode/interp.c[9.33],
microcode/interp.h[9.25], microcode/list.c[9.24],
microcode/memmag.c[9.31], microcode/object.h[9.26],
microcode/ppband.c[9.28], microcode/prim.c[9.26],
microcode/purutl.c[9.31], microcode/returns.h[9.28],
microcode/scheme.h[9.26], microcode/sdata.h[9.26],
microcode/stack.h[9.23], microcode/storage.c[9.37],
microcode/types.h[9.25], microcode/utabmd.scm[9.38],
microcode/utils.c[9.34], microcode/version.h[9.103],
microcode/xdebug.c[9.22], runtime/boot.scm[13.44],
runtime/histry.scm[13.48], runtime/scode.scm[13.45],
sf/gconst.scm[3.3], sf/make.scm[3.13]:
Eliminate all remnants of danger bits.
- History now uses two distinct types for marked and unmarked versions.
- Stacklets/control points have a separate word used as the reuse flag.

1987-10-08 Guillermo J. Rozas <[email protected]>

* microcode/sysprim.c[9.23]:
Fix long standing bug in HALT. Restartable_Exit was being invoked
twice.

1987-10-05 Guillermo J. Rozas <[email protected]>

* microcode/lookup.c[9.36]:
Minor bug:
compiler_cache_assignment was passing the wrong kind argument to
compiler_cache_reference.

* compiler/back/lapgn1.scm[1.42], compiler/back/lapgn3.scm[1.4],
compiler/fggen/declar.scm[1.2], compiler/fgopt/folcon.scm[1.2],
compiler/fgopt/outer.scm[1.2],
compiler/machines/bobcat/dassm2.scm[1.2],
compiler/machines/bobcat/lapgen.scm[1.190],
compiler/machines/bobcat/machin.scm[1.51],
compiler/machines/bobcat/make.scm-68040[1.44],
compiler/machines/bobcat/rules1.scm[1.7],
compiler/machines/bobcat/rules3.scm[1.15],
compiler/rtlbase/rtlty1.scm[1.14], compiler/rtlgen/rgstmt.scm[1.9],
compiler/rtlopt/ralloc.scm[1.13]:
- Make assignments use their own caches, distinct from those use by
references.
- Turn uuo links on by default.
- Partly implement the CONSTANT declaration.
- Add some more declaration language (ALL and NONE).
- Make the variable set be computed at the right point during graph
construction.

* microcode/lookup.c[9.35]:
*** empty log message ***

* microcode/debug.c[9.25], microcode/errors.h[9.25],
microcode/fhooks.c[9.25], microcode/gccode.h[9.29],
microcode/gctype.c[9.24], microcode/interp.c[9.32],
microcode/lookup.h[9.39], microcode/object.h[9.25],
microcode/ppband.c[9.27], microcode/returns.h[9.27],
microcode/sdata.h[9.25], microcode/storage.c[9.36],
microcode/trap.h[9.39], microcode/types.h[9.24],
microcode/version.h[9.102]:
Change variable caches so assignments and references go through
different caches. This allows uuo links to be turned on by default.

1987-10-02 Henry M. Wu <[email protected]>

* microcode/bignum.c[9.24]:
Fixed bug in division.

1987-09-24 Chris Hanson <[email protected]>

* runtime/emacs.scm[13.46]:
Repaginate, make last set of changes clearer. Return value must
always be true (previously it was undefined in some cases).

1987-09-21 Guillermo J. Rozas <[email protected]>

* microcode/bchdmp.c[9.34], microcode/bintopsb.c[9.28],
microcode/fasdump.c[9.30], microcode/fasload.c[9.30],
microcode/gccode.h[9.28], microcode/psbtobin.c[9.27],
microcode/version.h[9.101]:
Fix relocation of stack environments on band restore.

1987-09-18 Gerald Jay Sussman <[email protected]>

* runtime/emacs.scm[13.45]:
To add emacs interface hacks to flush input on control-g. - Aab

1987-09-03 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/decls.scm[1.24],
compiler/machines/bobcat/lapgen.scm[1.189],
compiler/machines/bobcat/make.scm-68040[1.43],
compiler/machines/bobcat/rules3.scm[1.14],
compiler/rtlbase/rtlcon.scm[1.13], compiler/rtlbase/rtlexp.scm[1.3],
compiler/rtlbase/rtlty1.scm[1.13], compiler/rtlgen/rgcomb.scm[1.34],
compiler/rtlopt/rcse1.scm[1.114]:
Add a few special utilities for generic arithmetic.

1987-08-31 Chris Hanson <[email protected]>

* compiler/base/cfg3.scm[1.4]:
Fix typo from last change.

* compiler/rtlgen/rtlgen.scm[1.20]:
Delete noop nodes BEFORE compressing the bblocks. Otherwise the
bblock compressor will encounter them and get confused.

* compiler/base/cfg2.scm[1.3]:
Make new interface for using noop nodes that controls both allocation
and deletion of the nodes.

1987-08-28 Guillermo J. Rozas <[email protected]>

* compiler/back/lapgn2.scm[1.5]:
Define with-temporary-register-copy! for 3 operand instructions.

* microcode/version.h[9.100]:
Fix compiled_entry_to_block, which was branching on the wrong condition.

* compiler/back/lapgn2.scm[1.4]:
Add with-register-copy-alias! for the benefit of machines with 3
operand instructions.

1987-08-27 Chris Hanson <[email protected]>

* compiler/base/utils.scm[1.91]:
Delete `complete-garbage-collect' from set of unsafe primitives.
Delete structure references from set of constant foldable primitives.

1987-08-26 Chris Hanson <[email protected]>

* compiler/base/cfg3.scm[1.3]:
Fix bug which caused dangling nodes to be left around when true or
false pcfg's were connected to other things.

1987-08-25 Chris Hanson <[email protected]>

* runtime/numpar.scm[13.43]:
Fix bug which caused (string->number "2e-get") to signal an error
instead of returning #F.

1987-08-25 Guillermo J. Rozas <[email protected]>

* microcode/bchmmg.c[9.36], microcode/version.h[9.99]:
Fix bug in bchscheme. The current disk position was not being updated
in some cases.

* compiler/base/pmerly.scm[1.6]:
Fix bug in can-integrate?

1987-08-24 Chris Hanson <[email protected]>

* runtime/defstr.scm[1.3]:
Disable copier definitions by default.

1987-08-24 Guillermo J. Rozas <[email protected]>

* compiler/machines/vax/insutl.scm[1.7]:
Make-effective-address is no longer integrated because the early
instruction code expects it not to be integrated.

* compiler/machines/vax/insmac.scm[1.11]:
Missing comma in early expansion of operands.

* compiler/base/pmerly.scm[1.5]:
Missing argument in call to scode/combination-components.

* compiler/base/pmerly.scm[1.4]:
Fix integration of the result of applying early transformers.

* compiler/machines/vax/insmac.scm[1.10],
compiler/machines/vax/instr1.scm[1.5],
compiler/machines/vax/instr3.scm[1.7]:
Displacements are simplified. They no longer have to discriminate
between @PCO and @PCR.

* compiler/machines/vax/coerce.scm[1.3]:
Eliminating unused coercions.

1987-08-23 Guillermo J. Rozas <[email protected]>

* compiler/machines/vax/inerly.scm[1.4]:
Missing backquotes.

* compiler/machines/vax/inerly.scm[1.3]:
Unlexperize DEFINE-TRANSFORMER.

* compiler/machines/vax/inerly.scm[1.2],
compiler/machines/vax/insmac.scm[1.9]:
Fix immediate effective address early processing.

* compiler/machines/bobcat/decls.scm[1.23]:
Fix the directory where infutl lives.

1987-08-22 Guillermo J. Rozas <[email protected]>

* compiler/machines/vax/insmac.scm[1.8],
compiler/machines/vax/insmac.scm[1.7],
compiler/machines/vax/insutl.scm[1.6],
compiler/machines/vax/insutl.scm[1.5]:
Minor modifications for early instruction processing.

1987-08-21 Guillermo J. Rozas <[email protected]>

* compiler/machines/vax/insmac.scm[1.6]:
Fix displacements.

* compiler/machines/vax/instr3.scm[1.6]:
Fix PUSHA opcodes.

* compiler/machines/vax/dsyn.scm[1.5]:
Missing comma.

* compiler/machines/vax/dsyn.scm[1.4]:
Fix order of argument evaluation bug in make-instruction-parser.

1987-08-20 Chris Hanson <[email protected]>

* runtime/pathnm.scm[13.44]:
Reimplement pathname abstraction using vectors instead of
environments. Install truename code here because rest of completion
code is being deleted from the runtime system. If `pathname-newest'
is false, then NEWEST version number handling is disabled.

* runtime/unxpth.scm[1.7]:
Now if `pathname-newest' is false, it indicates that NEWEST versions
should not be used.

* runtime/sfile.scm[13.42]:
Move `file-exists?' into the pathname code since it is strongly
related to that.

* runtime/unxpth.scm[1.6]:
Define `pathname-newest' in terms of `truename-exists?'.

* runtime/unxpth.scm[1.5]:
Add `pathname-newest' operation.

1987-08-20 Guillermo J. Rozas <[email protected]>

* microcode/regex.c[1.4]:
Minor change to satisfy the VMS C compiler which does not like arrays
in registers.

* compiler/machines/vax/insutl.scm[1.4]:
& effective address was not being syntaxed correctly.

* compiler/machines/vax/insmac.scm[1.5]:
Operands were not being integrated into instruction stream correctly.

* compiler/machines/vax/instr2.scm[1.4],
compiler/machines/vax/instr3.scm[1.5]:
Add definition of DEFINE-TRIVIAL-INSTRUCTION.

* compiler/machines/vax/dsyn.scm[1.3]:
Fix expansion of DEFINE-INSTRUCTION.

* compiler/machines/vax/instr2.scm[1.3]:
Fix (CVT D F ...) opcode.

* compiler/machines/vax/dsyn.scm[1.2]:
Fix Typo.

1987-08-19 Guillermo J. Rozas <[email protected]>

* compiler/machines/vax/instr1.scm[1.4]:
Separate opcode from operand in BUG instruction.

1987-08-18 Guillermo J. Rozas <[email protected]>

* compiler/machines/vax/insmac.scm[1.4]:
Fix syntaxing of displacement fields.

* compiler/machines/vax/instr3.scm[1.4]:
Fix syntactic bug in definition of conditional branch (B) instruction.

* compiler/base/utils.scm[1.90.1.1]:
Eliminate complete-garbage-collect from the list of unsafe primitives.

* compiler/machines/vax/instr3.scm[1.3]:
Typo in field instructions.

* compiler/machines/vax/insutl.scm[1.3]:
Fix parenthesis mismatch.

* compiler/machines/vax/insmac.scm[1.3],
compiler/machines/vax/instr1.scm[1.2],
compiler/machines/vax/instr2.scm[1.2],
compiler/machines/vax/instr3.scm[1.2]:
Add redundant information for the benefit of the disassembler.

1987-08-17 Chris Hanson <[email protected]>

* runtime/scomb.scm[13.43]:
Do no constant fold operations on mutable structures.

1987-08-17 Guillermo J. Rozas <[email protected]>

* microcode/bitstr.c[9.33], microcode/bitstr.h[1.4],
microcode/version.h[9.98]:
Fix bug in read/write-bits! and make them work on the VAX.

1987-08-16 Guillermo J. Rozas <[email protected]>

* microcode/gccode.h[9.27]:
Patch for vax cpp bug.

1987-08-14 Guillermo J. Rozas <[email protected]>

* compiler/machines/vax/insutl.scm[1.2]:
Add self adjusting addressing modes.

* compiler/machines/vax/insmac.scm[1.2]:
Add variable width syllables.

1987-08-13 Guillermo J. Rozas <[email protected]>

* compiler/back/asmmac.scm[1.5], compiler/back/bittop.scm[1.6],
compiler/back/insseq.scm[1.3], compiler/back/syerly.scm[1.4],
compiler/back/syntax.scm[1.20],
compiler/machines/bobcat/assmd.scm[1.32]:
Make instruction sequencing independent of machine byte ordering.

* compiler/machines/vax/coerce.scm[1.2]:
Add displacement coercions.

1987-08-12 Guillermo J. Rozas <[email protected]>

* microcode/version.h[9.97]:
Change to OS_read_char_ready_p, OS_System_Clock, and
OS_real_time_clock for machines where there is no clock available.

1987-08-11 Chris Hanson <[email protected]>

* compiler/rtlbase/rgraph.scm[1.2]:
Allocate rgraphs with correct size.

* runtime/defstr.scm[1.2]:
Fix bug in defaulting of keyword constructor arguments.

1987-08-10 Guillermo J. Rozas <[email protected]>

* microcode/findprim.c[9.27]:
Remove signed character dependencies.

* microcode/version.h[9.96]:
Minor tuning of bchscheme parameters.

* microcode/bchmmg.c[9.35]:
Use prealloc to improve performance of sequential reads/writes.
Cache the current disk position to avoid lseek if the next read/write
is sequential.

* microcode/bchgcc.h[9.30]:
Tune the disk buffer size.

* runtime/bitstr.scm[13.46]:
Add bit-string-append-reversed for use by the compiler.

1987-08-10 Panayotis Skordos <[email protected]>

* microcode/image.c[9.23], microcode/image.c[9.22]:
Added READ-IMAGE-FROM-2BINT-FILE
2BINT := putw(nrows),putw(ncols), followed by
2byte integers (high order byte first).
Saves half space of previous CBIN-images (putw stores 4 bytes).
At some point I will throw away the old
read-image-from-cbin-file. --pas

1987-08-08 Chris Hanson <[email protected]>

* compiler/rtlbase/rtlcfg.scm[1.5]:
Mark the graph when compressing bblocks to prevent walking parts of it
twice. Also be more careful in pblock case since stashed value of
alternative could have been deleted from the graph by the compression
of the consequent.

* compiler/rtlgen/rtlgen.scm[1.19]:
Compress blocks with a separate set of node marks since that algorithm
must mark the graph.

* compiler/rtlbase/rtlcfg.scm[1.4]:
Discard information a bit more aggressively.

1987-08-07 Chris Hanson <[email protected]>

* compiler/machines/bobcat/rules4.scm[1.4]:
Implement rule for cache-unassigned? trap.

* compiler/machines/bobcat/decls.scm[1.22]:
*** empty log message ***

* compiler/machines/bobcat/instr4.scm[1.3]:
Fix typo.

* compiler/back/lapgn1.scm[1.41], compiler/back/lapgn3.scm[1.3],
compiler/base/cfg1.scm[1.150], compiler/base/cfg2.scm[1.2],
compiler/base/cfg3.scm[1.2], compiler/base/ctypes.scm[1.51],
compiler/base/macros.scm[1.61], compiler/base/rvalue.scm[1.5],
compiler/machines/bobcat/decls.scm[1.21],
compiler/machines/bobcat/make.scm-68040[1.42],
compiler/rtlbase/rtlcfg.scm[1.3], compiler/rtlgen/rgcomb.scm[1.33],
compiler/rtlgen/rtlgen.scm[1.18], compiler/rtlopt/ralloc.scm[1.12],
compiler/rtlopt/rcompr.scm[1.3], compiler/rtlopt/rcse1.scm[1.113],
compiler/rtlopt/rcserq.scm[1.4], compiler/rtlopt/rdebug.scm[1.2],
compiler/rtlopt/rlife.scm[1.58]:
Redesign RTL data structures. New structures have CFG nodes which
represent basic blocks. Each basic block contains one or more RTL
instructions. Resulting data structures use considerably less storage
than old representation.

1987-08-07 Guillermo J. Rozas <[email protected]>

* microcode/bintopsb.c[9.27], microcode/psbmap.h[9.22],
microcode/psbtobin.c[9.26]:
Make Psbtobin and Bintopsb handle bit strings.

1987-08-06 Chris Hanson <[email protected]>

* microcode/bchmmg.c[9.34], microcode/bchpur.c[9.34],
microcode/version.h[9.94]:
Fix weak pairs for bchscheme.

1987-08-06 Guillermo J. Rozas <[email protected]>

* microcode/findprim.c[9.26]:
Insert page breaks between blocks.

* microcode/bitstr.c[9.32], runtime/bitstr.scm[13.45]:
Add bit-string-xor! primitive.

* microcode/utabmd.scm[9.37]:
Add bit-string-xor! primitive.
Comment out Gator primitives.

* microcode/version.h[9.95]:
Fix typo in config.h
Add bit-string-xor! primitive.

* microcode/Attic/config.h[9.31]:
FALS_PYR ==> FASL_PYR

* microcode/Attic/config.h[9.30], microcode/bitstr.c[9.31],
microcode/bitstr.h[1.3], microcode/version.h[9.93],
microcode/wsize.c[9.23]:
- Make bitstr.c work on machines with "little indian" byte ordering
convention by parameterizing bitstr.h according to byte order.

- Make Wsize compute the byte ordering information.

- Add changes for Alliant.

* compiler/machines/bobcat/make.scm-68040[1.41]:
Fix bug in block->variable-names.

1987-08-05 Guillermo J. Rozas <[email protected]>

* microcode/string.c[9.27], microcode/version.h[9.92]:
Fix bug in allocate_string which was making impurify die.

1987-08-04 Chris Hanson <[email protected]>

* compiler/back/lapgn1.scm[1.40], compiler/base/ctypes.scm[1.50],
compiler/base/macros.scm[1.60], compiler/base/rvalue.scm[1.4],
compiler/rtlgen/rgcomb.scm[1.32], compiler/rtlgen/rtlgen.scm[1.17],
compiler/rtlopt/ralloc.scm[1.11], compiler/rtlopt/rcompr.scm[1.2],
compiler/rtlopt/rcse1.scm[1.112], compiler/rtlopt/rcserq.scm[1.3],
compiler/rtlopt/rlife.scm[1.57]:
Allocate RTL registers separately for each procedure (and quotation),
since no register is used in more than one procedure.

1987-08-03 Guillermo J. Rozas <[email protected]>

* microcode/version.h[9.91]:
Fix some bugs in uuo links, and reorganize the uuo link trap code.

1987-08-01 Guillermo J. Rozas <[email protected]>

* runtime/unpars.scm[13.52]:
- Make the environment abstraction handle all trap objects.
- Make compiled procedures print like #[COMPILED-PROCEDURE #x<datum>]

* microcode/hooks.c[9.25], microcode/intern.c[9.42],
microcode/version.h[9.90]:
- Set-fixed-objects-vector now errors when given a vector which is too
short.
- Fix bug in the debugging utility Find_Symbol.
- Partly rewrite primitives in hooks.c and intern.c to use PRIMITIVE_RETURN,
PRIMITIVE_ABORT, and signal_error_from_primitive.

1987-07-31 Chris Hanson <[email protected]>

* compiler/machines/bobcat/make.scm-68040[1.40]:
Include disassembler and 68020 instruction files.

* compiler/machines/bobcat/make.scm-68040[1.39]:
Export some procedures from the compiler-package to the global
environment. Do not change the default directory or environment or
syntax table when loading the compiler.

* compiler/rtlbase/rtlcon.scm[1.9.1.2],
compiler/rtlbase/rtlcon.scm[1.12]:
Allow dereferencing of constants in RTL.

1987-07-30 Guillermo J. Rozas <[email protected]>

* microcode/version.h[9.89]:
Make cmp68020.s understand 32 bit block offsets.

* compiler/back/bittop.scm[1.5], compiler/back/syerly.scm[1.3],
compiler/back/syntax.scm[1.19],
compiler/machines/bobcat/assmd.scm[1.31],
compiler/machines/bobcat/instr2.scm[1.13],
compiler/machines/bobcat/lapgen.scm[1.188],
compiler/machines/bobcat/make.scm-68040[1.38],
compiler/machines/bobcat/rules3.scm[1.13]:
Reimplement 32 bit offsets in compiled code blocks. They are now
implemented as a chain of 16 bit offsets, since parts of the system
depend on the fact that any given offset is only 16 bits long.

* microcode/comutl.c[1.8], microcode/version.h[9.88]:
Change the way 32 bit offsets are implemented.

* compiler/back/bittop.scm[1.4], compiler/back/bitutl.scm[1.3],
compiler/back/syntax.scm[1.18],
compiler/machines/bobcat/inerly.scm[1.4],
compiler/machines/bobcat/insmac.scm[1.123],
compiler/machines/bobcat/instr1.scm[1.65],
compiler/machines/bobcat/instr2.scm[1.12],
compiler/machines/bobcat/instr3.scm[1.14],
compiler/machines/bobcat/insutl.scm[1.5],
compiler/machines/bobcat/lapgen.scm[1.187],
compiler/machines/bobcat/make.scm-68040[1.37],
compiler/machines/bobcat/rules3.scm[1.12]:
Make the compiler handle 32 bit offsets.

* compiler/base/pmerly.scm[1.3]:
Add a kludge to disable the integration of the results of some
transformers applied early.

1987-07-29 Chris Hanson <[email protected]>

* runtime/Attic/syntax.scm[13.50.1.1], runtime/advice.scm[13.44.1.1],
runtime/bitstr.scm[13.44.1.1], runtime/boot.scm[13.43.1.1],
runtime/char.scm[13.42.1.1], runtime/datime.scm[13.41.1.1],
runtime/debug.scm[13.43.1.1], runtime/emacs.scm[13.44.1.1],
runtime/equals.scm[13.42.1.1], runtime/error.scm[13.48.1.1],
runtime/events.scm[13.42.1.1], runtime/format.scm[13.43.1.1],
runtime/gc.scm[13.43.1.1], runtime/gcstat.scm[13.44.1.1],
runtime/gensym.scm[13.41.1.1], runtime/hash.scm[13.46.1.1],
runtime/histry.scm[13.47.1.1], runtime/input.scm[13.50.1.1],
runtime/io.scm[13.45.1.1], runtime/lambda.scm[13.42.1.1],
runtime/list.scm[13.42.1.1], runtime/msort.scm[13.41.1.1],
runtime/numpar.scm[13.42.1.1], runtime/output.scm[13.46.1.1],
runtime/parse.scm[13.43.1.1], runtime/pathnm.scm[13.43.1.1],
runtime/pp.scm[13.44.1.1], runtime/qsort.scm[13.41.1.1],
runtime/rep.scm[13.42.1.1], runtime/scan.scm[13.41.1.1],
runtime/scode.scm[13.44.1.1], runtime/scomb.scm[13.42.1.1],
runtime/sdata.scm[13.43.1.1], runtime/sfile.scm[13.41.1.1],
runtime/stream.scm[13.41.1.1], runtime/string.scm[13.42.1.1],
runtime/sysclk.scm[13.41.1.1], runtime/system.scm[13.50.1.1],
runtime/unpars.scm[13.51.1.1], runtime/unsyn.scm[13.47.1.1],
runtime/unxpth.scm[1.4.1.1], runtime/utabs.scm[13.46.1.1],
runtime/vector.scm[13.44.1.1], runtime/where.scm[13.42.1.1],
runtime/wind.scm[13.42.1.1]:
*** empty log message ***

* microcode/version.h[9.87]:
Fix bug in "cmp68020.s": multiple variable cache initialization code
where D1 was not restored properly after calling into the interpreter.

* compiler/rtlgen/rtlgen.scm[1.16]:
When walking predicate nodes, must be able to handle case where either
the consequent or alternative is nonexistent. This is because we must
walk over incomplete graphs when generating code for operands.

1987-07-29 Guillermo J. Rozas <[email protected]>

* microcode/fasload.c[9.29]:
Fix off by one bug in Intern_Block.

1987-07-28 Chris Hanson <[email protected]>

* compiler/fgopt/simapp.scm[1.3]:
Change procedure application simulator to make unsupplied optional
(and required!) arguments be unknowable. We could actually do better
by making them be connected to an unassigned object but that isn't too
important right now.

* runtime/string.scm[13.42]:
Change definition of primitives to eliminate `in-package'.

1987-07-27 Chris Hanson <[email protected]>

* compiler/machines/bobcat/rules2.scm[1.3]:
Refix typo.

* runtime/bitstr.scm[13.44], runtime/char.scm[13.42]:
Change definition of primitives to eliminate `in-package'.

1987-07-27 Guillermo J. Rozas <[email protected]>

* microcode/generic.c[9.24]:
Fix bug in floor and ceil when not provided by the system.

* microcode/flonum.c[9.23]:
Fix bug in LN-FLONUM.

1987-07-26 Chris Hanson <[email protected]>

* compiler/rtlgen/rgrval.scm[1.13]:
Undo last change, it loses by attempting to close procedures in wrong
place.

1987-07-24 Chris Hanson <[email protected]>

* runtime/input.scm[13.50]:
*** empty log message ***

* runtime/input.scm[13.49]:
Disable sticky pathname defaulting. Leave hooks in place in case we
ever figure this out.

* compiler/rtlgen/rgrval.scm[1.12]:
Handle cases where vnodes have known values that are not constants.

1987-07-23 Chris Hanson <[email protected]>

* microcode/version.h[9.86]:
Implement numerous small changes to support new Xlib interface.

* microcode/vector.c[9.26]:
Add new C procedures for allocating vectors.

* microcode/utils.c[9.33]:
Add new procedure for converting fixnum arguments to C integers.

* microcode/string.c[9.26]:
Implement new procdures for allocating strings.

* microcode/prims.h[9.28]:
Implement more powerful primitive header and argument reference
interface.

* microcode/object.h[9.24]:
Add some useful macros.

* microcode/interp.h[9.24]:
Add `UNWIND_PROTECT' macro.

* microcode/generic.c[9.23]:
Add `object_to_long' which is like `Scheme_Integer_To_C_Integer' but a
bit more flexible.

1987-07-22 Chris Hanson <[email protected]>

* compiler/rtlgen/rgcomb.scm[1.27.1.1]:
In `generate-operands', handle case where number of operands exceeds
sum of required and optional parameters.

* compiler/rtlgen/rgcomb.scm[1.31]:
In `generate-operands', handle case where number of operands is less
than number or required plus number of optional parameters.

1987-07-22 Guillermo J. Rozas <[email protected]>

* microcode/bchmmg.c[9.33], microcode/comutl.c[1.7],
microcode/gccode.h[9.26], microcode/purutl.c[9.30],
microcode/version.h[9.85]:
The microcode now understands 32 bit block offsets in compiled code.

* compiler/back/asmmac.scm[1.4], compiler/back/bittop.scm[1.3],
compiler/back/bitutl.scm[1.2], compiler/back/syntax.scm[1.17],
compiler/machines/bobcat/inerly.scm[1.3],
compiler/machines/bobcat/insmac.scm[1.122],
compiler/machines/bobcat/instr3.scm[1.13],
compiler/machines/bobcat/make.scm-68040[1.36]:
The assembler now chooses the right length for branch instructions.

1987-07-21 Chris Hanson <[email protected]>

* microcode/gccode.h[9.25]:
Install missing defaults for case when there is no compiled code
support.

* compiler/rtlbase/rtlcon.scm[1.9.1.1],
compiler/rtlbase/rtlcon.scm[1.11]:
Fix order-of-events bug in open-coded consing.

* microcode/regex.c[1.3], microcode/rgxprim.c[1.3]:
Redo macro so that open-paren of macro is on same line as its name.

1987-07-21 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/coerce.scm[1.9],
compiler/machines/bobcat/insmac.scm[1.121],
compiler/machines/bobcat/instr1.scm[1.64],
compiler/machines/bobcat/insutl.scm[1.4],
compiler/machines/bobcat/make.scm-68040[1.35]:
Add new 68020 addressing modes.

* compiler/machines/bobcat/instr4.scm[1.2]:
Change transformer name.

1987-07-21 Henry M. Wu <[email protected]>

* compiler/machines/bobcat/rules3.scm[1.11]:
Added generation of debugging info filename.

1987-07-20 Chris Hanson <[email protected]>

* compiler/machines/bobcat/rules3.scm[1.10]:
Fix broken increment of frame-size for invocation:lookup rule.

1987-07-19 Chris Hanson <[email protected]>

* microcode/version.h[9.84]:
Forgot to update `SUBVERSION' for previous change.

* microcode/version.h[9.83]:
New release number "5.3.0".

* runtime/unxpth.scm[1.4]:
Typo in pathname parser.

* compiler/rtlbase/rtlty2.scm[1.2]:
Missing definition of `rtl:interpreter-call-result:cache-unassigned?'.

1987-07-18 Chris Hanson <[email protected]>

* microcode/pruxfs.c[9.22], microcode/version.h[9.82]:
Add a few new primitives to support more sophisticated file
manipulation.

* runtime/pathnm.scm[13.43], runtime/unxpth.scm[1.3]:
Reimplement pathname parsing stuff for new VMS parser.

1987-07-17 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/coerce.scm[1.8],
compiler/machines/bobcat/decls.scm[1.19],
compiler/machines/bobcat/insmac.scm[1.120],
compiler/machines/bobcat/instr1.scm[1.63],
compiler/machines/bobcat/instr2.scm[1.11],
compiler/machines/bobcat/instr3.scm[1.12],
compiler/machines/bobcat/insutl.scm[1.3],
compiler/machines/bobcat/make.scm-68040[1.33]:
Complete the 68020 instruction set.

1987-07-17 Henry M. Wu <[email protected]>

* compiler/machines/bobcat/decls.scm[1.20],
compiler/machines/bobcat/make.scm-68040[1.34]:
First release of debugging information generating utilities.

1987-07-16 Chris Hanson <[email protected]>

* microcode/syntax.c[1.5]:
Fix stupid typo from last change.

1987-07-16 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/make.scm-68040[1.32]:
Bug in generate-n-times. It now expects a thunk rather than an instruction.
Change branch types from S and L to B and W.
Bug in NMV header size.

* compiler/back/bittop.scm[1.2]:
Bug in NMV header size.

* compiler/machines/bobcat/instr3.scm[1.11]:
Change branch types from S and L to B and W.

* compiler/machines/bobcat/rules3.scm[1.9],
compiler/machines/bobcat/rules4.scm[1.3]:
Fix bug in generate-n-times. It now expects a thunk rather than an instruction.
Change branch types from S and L to B and W.

* compiler/machines/bobcat/lapgen.scm[1.186]:
Fix bug in generate-n-times. It now expects a thunk rather than an instruction.

1987-07-15 Chris Hanson <[email protected]>

* microcode/syntax.c[1.4]:
Can't use the identifier `entry' on VMS.

* microcode/bitstr.c[9.30], microcode/comutl.c[1.6],
microcode/interp.c[9.31], microcode/regex.c[1.2],
microcode/rgxprim.c[1.2], microcode/string.c[9.25]:
Shorten names to 31 characters for VMS.

1987-07-15 Guillermo J. Rozas <[email protected]>

* compiler/back/symtab.scm[1.43], compiler/back/syntax.scm[1.16],
compiler/machines/bobcat/decls.scm[1.18],
compiler/machines/bobcat/make.scm-68040[1.31]:
Add branch tensioning assembler.

1987-07-15 Henry M. Wu <[email protected]>

* compiler/machines/bobcat/lapgen.scm[1.185],
compiler/machines/bobcat/rules3.scm[1.8]:
*** empty log message ***

1987-07-14 Chris Hanson <[email protected]>

* microcode/syntax.h[1.2]:
Add macro to abstract the type of syntax tables. This is used by the
regular expression code.

* microcode/utabmd.scm[9.35], microcode/version.h[9.80]:
Implement regular expression primitives for Edwin.

1987-07-14 Henry M. Wu <[email protected]>

* microcode/comutl.c[1.5], microcode/utabmd.scm[9.36]:
Added primitive COMPILED-CODE-ADDRESS->OFFSET

* microcode/version.h[9.81]:
Upped version to reflect addition of primitive COMPILED-CODE-ADDRESS->OFFSET

1987-07-13 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/assmd.scm[1.30]:
Add maximum-padding-length definition.

1987-07-10 Chris Hanson <[email protected]>

* compiler/machines/bobcat/decls.scm[1.17]:
Change `filename-append' to make lists of absolute pathnames.

1987-07-10 Henry M. Wu <[email protected]>

* compiler/base/rvalue.scm[1.3]:
Fixed bug in MAKE-BLOCK.

1987-07-09 Henry M. Wu <[email protected]>

* compiler/rtlgen/rgcomb.scm[1.30]:
Made combinations pass their block to continuations.

* compiler/base/rvalue.scm[1.2]:
Added "block-frame" slot to hold on to debugging information.

* compiler/base/ctypes.scm[1.49]:
Added "block" slot to continuation objects.

1987-07-08 Guillermo J. Rozas <[email protected]>

* compiler/back/asmmac.scm[1.3], compiler/back/lapgn1.scm[1.39],
compiler/back/lapgn2.scm[1.3], compiler/back/lapgn3.scm[1.2],
compiler/back/regmap.scm[1.90], compiler/back/syntax.scm[1.15],
compiler/base/macros.scm[1.59], compiler/base/pmlook.scm[1.5],
compiler/base/pmpars.scm[1.2], compiler/base/utils.scm[1.90],
compiler/machines/bobcat/decls.scm[1.16],
compiler/machines/bobcat/insmac.scm[1.119],
compiler/machines/bobcat/instr1.scm[1.62],
compiler/machines/bobcat/instr2.scm[1.10],
compiler/machines/bobcat/instr3.scm[1.10],
compiler/machines/bobcat/lapgen.scm[1.184],
compiler/machines/bobcat/machin.scm[1.50],
compiler/machines/bobcat/make.scm-68040[1.30],
compiler/machines/bobcat/rules1.scm[1.6],
compiler/machines/bobcat/rules2.scm[1.2],
compiler/machines/bobcat/rules3.scm[1.7],
compiler/machines/bobcat/rules4.scm[1.2]:
The RTL is now translated directly to bits, rather than LAP.

* sf/make.scm[3.12]:
Up version number.

* sf/copy.scm[3.6], sf/emodel.scm[3.3], sf/make.scm[3.11],
sf/pardec.scm[3.5], sf/subst.scm[3.6], sf/usiexp.scm[3.4],
sf/xform.scm[3.5]:
Add operator expanders for compiler.

1987-07-07 Chris Hanson <[email protected]>

* compiler/machines/bobcat/rules3.scm[1.6]:
Redefine meaning of frame-size slot for `invocation:primitive'. Fix
bug in meaning of that slot for `invocation:uuo-link'.

* compiler/rtlgen/rgcomb.scm[1.29]:
Redefine meaning of frame-size slot for `invocation:primitive'.

* microcode/vector.c[9.25]:
Define `make_vector' procedure to facilitate construction of vectors.

* microcode/fasload.c[9.28]:
Add relocation hook for common lisp.

* microcode/intercom.c[9.23]:
Added two new primitives.

* microcode/interp.c[9.30]:
Add site-specific hooks to expression and return dispatches.

* microcode/version.h[9.79]:
*** empty log message ***

* runtime/Attic/syntax.scm[13.50]:
Update reference from `add-syntax!' to `syntax-table-define'.

* microcode/default.h[9.27]:
Add hooks for various extensions.

* microcode/futures.h[9.22]:
Define `FUTURE_VARIABLE_SPLICE' macro.

* microcode/scheme.h[9.25]:
Add site-specific include file.

* microcode/zones.h[9.22]:
Delete obsolete definitions. Define `Zone_Scheduler'.

1987-07-07 Guillermo J. Rozas <[email protected]>

* microcode/version.h[9.78]:
UUO link bugs.

* microcode/version.h[9.77]:
Minor changes to unix.c, future.c, default.h, and lookup.h .

* microcode/lookup.h[9.38]:
Add default Future_Variable_Splice.

* microcode/default.h[9.26], microcode/future.c[9.23]:
Move New_Future_Number to future.c

* microcode/wsize.c[9.22]:
Make Wsize work on machines which do not set ERANGE on floating point
overflow.

1987-07-06 Guillermo J. Rozas <[email protected]>

* compiler/base/utils.scm[1.88.1.3]:
Replace write-to-string with number->string.

* compiler/back/syntax.scm[1.14.1.3]:
make-coercion-name now uses symbol->string and number->string rather
than write-to-string.

1987-07-03 Chris Hanson <[email protected]>

* compiler/machines/bobcat/rules1.scm[1.5]:
Use correct type code for procedure entries.

* compiler/machines/bobcat/rules3.scm[1.5]:
Don't forget to setup the number of arguments in D0 for uuo-linked
invocations.

* microcode/version.h[9.76]:
`compiler_fake_uuo_link' was looking for the procedure in the wrong
place on the stack.

* compiler/machines/bobcat/make.scm-68040[1.29]:
Add declarations and uuo-link handling.

* compiler/machines/bobcat/rules3.scm[1.4]:
Add new invocation type for uuo-link invocations. Always output a
constants slot for the environment, even if it isn't used; this will
be taken advantage of if we use other slots near the end for other
purposes.

* compiler/rtlgen/rgcomb.scm[1.28]:
Use uuo-links for unknown reference-calls if the variable has a
declaration saying to do so.

* compiler/rtlbase/rtlcon.scm[1.10], compiler/rtlbase/rtlty1.scm[1.12],
compiler/rtlopt/rcse1.scm[1.111]:
Add new invocation type for uuo-link invocations.

1987-07-02 Chris Hanson <[email protected]>

* compiler/rtlbase/rtlty1.scm[1.11]:
Add new expression type 'UUO-LINK.

* compiler/machines/bobcat/decls.scm[1.15]:
Add new file "alpha/declar".

* compiler/base/lvalue.scm[1.2]:
Add slot to variable objects to allow attachment of declarations.

* sf/cgen.scm[3.4]:
Allow unused declarations to be passed through to next stage of
compilation. Fix bug that signalled warning twice for each such
declaration at top level.

* runtime/emacs.scm[13.44]:
Remap "Visiting->" prompt.

* runtime/emacs.scm[13.43]:
Remap some prompts to values that look better in the modeline.

1987-07-02 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/decls.scm[1.9.1.3]:
Add syntax dependencies of rules<n> files.

* compiler/machines/bobcat/make.scm-68040[1.21.1.2]:
Add rules<n> files.

* compiler/machines/bobcat/insmac.scm[1.118.1.4]:
Typo in parse-word. early -> early?

1987-07-01 Guillermo J. Rozas <[email protected]>

* compiler/back/asmmac.scm[1.2.1.2], compiler/back/insseq.scm[1.2],
compiler/back/syerly.scm[1.2], compiler/back/syntax.scm[1.14.1.2],
compiler/base/macros.scm[1.58.1.4], compiler/base/pmerly.scm[1.2],
compiler/base/utils.scm[1.88.1.2],
compiler/machines/bobcat/decls.scm[1.9.1.2],
compiler/machines/bobcat/inerly.scm[1.2],
compiler/machines/bobcat/insmac.scm[1.118.1.3],
compiler/machines/bobcat/instr3.scm[1.9.1.2],
compiler/machines/bobcat/insutl.scm[1.2],
compiler/machines/bobcat/lapgen.scm[1.179.1.2],
compiler/machines/bobcat/machin.scm[1.49.1.3],
compiler/machines/bobcat/rules1.scm[1.1.1.1],
compiler/machines/bobcat/rules2.scm[1.1.1.1],
compiler/machines/bobcat/rules3.scm[1.1.1.1],
compiler/machines/bobcat/rules4.scm[1.1.1.1]:
Done with early assembly.

* sf/copy.scm[3.5.1.2], sf/object.scm[3.1.1.3], sf/pardec.scm[3.4.1.4],
sf/xform.scm[3.4.1.4]:
Done with expander changes.

* microcode/ppband.c[9.26]:
Update to match fasl.h

* sf/emodel.scm[3.2.1.2]:
Add intern? option to block/lookup-names.

* sf/emodel.scm[3.2.1.1]:
Add intern? option to block/lookup-name.

* sf/make.scm[3.10.1.1]:
Allocat version number.

1987-06-30 Chris Hanson <[email protected]>

* sf/make.scm[3.10], sf/toplev.scm[3.4]:
Change `sf' so that it does sticky filename defaulting when given
multiple filenames.

* runtime/input.scm[13.48]:
Change `load' so that it does sticky filename defaulting when given
multiple filenames.

* runtime/unpars.scm[13.51]:
Change vector unparser to obey the variables
*unparser-list-breadth-limit*
*unparser-list-depth-limit*
as if it were a list.

* runtime/advice.scm[13.44]:
Fix advising of internal definitions, which has not been updated since
the changes to how internal definitions are scanned.

* runtime/unpars.scm[13.50]:
Change handling of lists whose car is 'QUOTE so that the list
(FOO QUOTE)
does not print out as
(FOO . (QUOTE))

* compiler/fgopt/simapp.scm[1.2]:
Fix another bug -- when connecting procedures to vnodes the attachment
must be propagated to the forward links.

* compiler/rtlopt/rcse1.scm[1.110]:
When walking a pnode that requires the copying of the state, that
state was being held onto longer than necessary.

1987-06-30 Guillermo J. Rozas <[email protected]>

* sf/pardec.scm[3.4.1.3]:
Remove PROCESS-OPERATOR declaration. Brain-damage!

* sf/pardec.scm[3.4.1.2]:
Add PROCESS-OPERATOR declaration.

* microcode/bchgcc.h[9.29]:
BSD has the file creation flags in a different include file.

* sf/object.scm[3.1.1.2]:
Block allocation was not creating a large enough block.

* sf/copy.scm[3.5.1.1], sf/object.scm[3.1.1.1], sf/subst.scm[3.5.1.7],
sf/usiexp.scm[3.3.1.7], sf/xform.scm[3.4.1.3]:
Blocks now carry environments within them.

1987-06-29 Chris Hanson <[email protected]>

* compiler/back/lapgn1.scm[1.38]:
Add test to guarantee that all continuations are code generated.

* microcode/version.h[9.75]:
Fix two bugs in the compiled code interface having to do with the
handling of interrupts.

1987-06-26 Chris Hanson <[email protected]>

* compiler/base/sets.scm[1.2]:
Add some operations for new regset abstraction.

* runtime/gcstat.scm[13.44]:
Guarantee that GC notifications are printed with correct radix.

1987-06-26 Guillermo J. Rozas <[email protected]>

* sf/subst.scm[3.5.1.6]:
Upgrade integrate/access-operator.

* sf/subst.scm[3.5.1.5]:
Export new definitions from package/integrate.

* sf/usiexp.scm[3.3.1.6]:
Use the correct global block when transforming after an scode level expansion.

* sf/subst.scm[3.5.1.4]:
Make the correct global block available when expanding.

* sf/xform.scm[3.4.1.2]:
Setup xform to use the correct global block when expanding.

* sf/usiexp.scm[3.3.1.5]:
Pass environment to expanders. Bug fix.

* sf/subst.scm[3.5.1.3], sf/usiexp.scm[3.3.1.4]:
Pass environment to expanders.

* sf/xform.scm[3.4.1.1]:
Make transform/top-level-1 take an optional environment argument.

* sf/usiexp.scm[3.3.1.3]:
Pass the operator to expanders so they can extract the correct block.
Fix a bug.

* sf/subst.scm[3.5.1.2], sf/usiexp.scm[3.3.1.2]:
Pass the operator to expanders so they can extract the correct block.

* runtime/pp.scm[13.44]:
Disallow *unparse-symbol integration to provide hook for canonicalization.

1987-06-25 Chris Hanson <[email protected]>

* compiler/machines/bobcat/decls.scm[1.14],
compiler/machines/bobcat/make.scm-68040[1.28]:
Split "rtypes" into two parts.

1987-06-25 Guillermo J. Rozas <[email protected]>

* runtime/unpars.scm[13.49]:
Provide a *unparse-symbol hook for canonicalization. Bug in previous
addition.

* runtime/unpars.scm[13.48]:
Provide a *unparse-symbol hook for canonicalization.

* compiler/back/regmap.scm[1.88.1.1],
compiler/back/syntax.scm[1.14.1.1],
compiler/base/macros.scm[1.58.1.3],
compiler/base/pmlook.scm[1.4.1.1], compiler/base/utils.scm[1.88.1.1],
compiler/machines/bobcat/decls.scm[1.9.1.1],
compiler/machines/bobcat/insmac.scm[1.118.1.2],
compiler/machines/bobcat/instr1.scm[1.61.1.3],
compiler/machines/bobcat/lapgen.scm[1.179.1.1],
compiler/machines/bobcat/machin.scm[1.49.1.2],
compiler/machines/bobcat/make.scm-68040[1.21.1.1]:
Syntax time instruction expansion.

* sf/usiexp.scm[3.3.1.1]:
Add scode level expander capability.

1987-06-24 Chris Hanson <[email protected]>

* compiler/back/symtab.scm[1.42]:
Change abstraction to use hash tables, to eliminate possible quadratic
behavior.

* compiler/base/utils.scm[1.89]:
Extend symbol hash table abstraction with new operations.

* compiler/machines/bobcat/decls.scm[1.13]:
Add additional integration dependencies for "back-end/laptop".

1987-06-24 Guillermo J. Rozas <[email protected]>

* runtime/input.scm[13.47]:
Make fasload default to extension bin. Fix a bug in previous attempt.

* runtime/input.scm[13.46]:
Make fasload default to extension bin.

1987-06-23 Chris Hanson <[email protected]>

* microcode/bchmmg.c[9.32], microcode/default.h[9.25],
microcode/extern.h[9.27], microcode/memmag.c[9.30],
microcode/stack.h[9.22], microcode/storage.c[9.35],
microcode/version.h[9.74]:
Define new variable `Constant_Top' to mark the upper limit of constant
space. Do not use unallocated parts of constant space for the stack;
the stack size is fixed at the beginning of time. This fixes a bug in
which the constant space overflowed into the stack space, without
signalling any error.

* compiler/rtlgen/rgproc.scm[1.5]:
Fix bugs in last revision.

* compiler/rtlgen/rgcomb.scm[1.27]:
Generate correct code for combinations whose operators are unknown
references.

* compiler/rtlgen/rgproc.scm[1.4]:
Generate code for letrec-bindings of IC procedures.

* compiler/rtlgen/rgstmt.scm[1.8]:
Generator for `assignment' statement was using `definition-rvalue'
instead of `assignment-rvalue' (an editing oversight).

1987-06-23 Guillermo J. Rozas <[email protected]>

* sf/pardec.scm[3.4.1.1], sf/subst.scm[3.5.1.1]:
Add sub-primitive expansion facility.

1987-06-22 Chris Hanson <[email protected]>

* microcode/boot.c[9.38]:
Change formatting of termination messages.

* microcode/interp.c[9.29]:
Save expression register when merging compiled code stack blocks.

* compiler/machines/bobcat/rules3.scm[1.3]:
In entry for IC procedure, equate the internal and external labels,
since all number of argument checks are performed by the interpreter.

* compiler/machines/bobcat/rules3.scm[1.2]:
Generate external label for IC procedures.

* compiler/rtlgen/rgproc.scm[1.3]:
Generate frame-pointer assignment for IC procedures.

1987-06-21 allen <[email protected]>

* runtime/vector.scm[13.44]:
Remove use of 'in-package' (not supported by the compiler), replacing
with 'local-assignment'

1987-06-19 Guillermo J. Rozas <[email protected]>

* microcode/prims.h[9.22.1.1], microcode/utils.c[9.24.1.1]:
VMS fix.

* microcode/Attic/config.h[9.29], microcode/interp.c[9.28],
microcode/returns.h[9.26], microcode/version.h[9.45.1.1],
microcode/version.h[9.73]:
Changes for VMS.

1987-06-18 Chris Hanson <[email protected]>

* compiler/machines/bobcat/rules1.scm[1.4]:
Add new rule.

1987-06-18 Guillermo J. Rozas <[email protected]>

* microcode/Attic/config.h[9.28], microcode/dmpwrld.c[9.25]:
Some changes for pyramids.

* microcode/bchdmp.c[9.33], microcode/boot.c[9.37],
microcode/fasdump.c[9.29], microcode/fhooks.c[9.24],
microcode/prims.h[9.27], microcode/syntax.c[1.3],
microcode/utils.c[9.32], microcode/version.h[9.72]:
Some changes for BBN and VMS.

* microcode/Attic/config.h[9.27]:
Some changes for VMS.

* microcode/default.h[9.24]:
Add main_type for VMS.

* microcode/default.h[9.23]:
Add Band_Dump_Exit_Hook for butterflys.

1987-06-17 Chris Hanson <[email protected]>

* runtime/output.scm[13.46], runtime/output.scm[13.45]:
Fix stupid error in last modification.

* runtime/format.scm[13.43], runtime/output.scm[13.44],
runtime/unpars.scm[13.47]:
Add new objects to set of things that do not print. Change
`unparse-object' (in `unparser-package') to require its third
argument.

* compiler/machines/bobcat/decls.scm[1.12],
compiler/machines/bobcat/make.scm-68040[1.27],
compiler/rtlbase/rtlty1.scm[1.10]:
Split files.

* compiler/machines/bobcat/decls.scm[1.11],
compiler/machines/bobcat/make.scm-68040[1.26]:
Split files into parts.

* microcode/version.h[9.71]:
Fix bug in purify by which the end of block marker was lost/garbled if it
overflowed the window into the gc file.

1987-06-16 Chris Hanson <[email protected]>

* microcode/bchpur.c[9.33]:
Fix bug in purify by which the end of block marker was lost/garbled if it
overflowed the window into the gc file.

* runtime/input.scm[13.45]:
`:read-string' operation for string input ports must move the position
index when it encounters end of string.

* runtime/parse.scm[13.43]:
Character parser must be careful near end of file.

* microcode/version.h[9.70], microcode/version.h[9.69]:
*** empty log message ***

1987-06-15 Chris Hanson <[email protected]>

* runtime/unpars.scm[13.46]:
Correctly fix unparser to detect unparsing of partially marked
vectors.

* microcode/comutl.c[1.4]:
Change `error_external_error' to correct name `error_external_return'.

* compiler/machines/bobcat/rules1.scm[1.3]:
Retract last change.

* compiler/machines/bobcat/rules1.scm[1.2]:
Use `reference-alias-register!' in some appropriate places. These
places were not properly loading alias registers under certain
circumstances.

* compiler/back/lapgn2.scm[1.2]:
Redefine `reference-alias-register!' to load the alias register rather
than just allocating it. This is almost always what is desired.

* compiler/machines/bobcat/lapgen.scm[1.183]:
In `indirect-reference!', need to load the alias register that is
allocated under certain circumstances.

* runtime/unpars.scm[13.45]:
Make vector unparser smarter about looking for nmv headers within the
vector so that we do not blindly unparse partially marked vectors.

* microcode/comutl.c[1.3]:
Change primitives to use new type code for compiled-code-block.
Change print name to match one in runtime system.

* runtime/input.scm[13.44]:
Fix logic for determining end-of-file in a buffered input port.

1987-06-15 Guillermo J. Rozas <[email protected]>

* microcode/version.h[9.68]:
Reason:
Make fasdump in bchscheme back out when the object being dumped is too large.
Files changed:
bchdmp.c
bchgcc.h
bchgcl.c
bchmmg.c
bchpur.c
TODO

* microcode/bchdmp.c[9.32], microcode/bchgcc.h[9.28],
microcode/bchgcl.c[9.30], microcode/bchmmg.c[9.31],
microcode/bchpur.c[9.32]:
Make fasdump in bchscheme back out when the object being dumped is too large.

1987-06-13 Chris Hanson <[email protected]>

* compiler/back/lapgn1.scm[1.37], compiler/base/cfg1.scm[1.149],
compiler/machines/bobcat/decls.scm[1.10],
compiler/machines/bobcat/make.scm-68040[1.25],
compiler/machines/bobcat/make.scm-68040[1.24]:
Break up files into smaller pieces for compilation.

* compiler/machines/bobcat/lapgen.scm[1.182]:
Break up file into smaller pieces for compilation.

* compiler/machines/bobcat/make.scm-68040[1.23]:
Initialize package structure.

* compiler/machines/bobcat/lapgen.scm[1.181]:
Missing whitespace.

* compiler/rtlgen/rgrval.scm[1.11]:
Change contents of `*ic-procedure-headers*' so that it can be
fasdumped.

* compiler/back/regmap.scm[1.89],
compiler/machines/bobcat/make.scm-68040[1.22]:
Restructure packaging to eliminate explicit make-environment in
"regmap".

* compiler/rtlgen/rgcomb.scm[1.26], compiler/rtlgen/rgproc.scm[1.2],
compiler/rtlgen/rgrval.scm[1.10], compiler/rtlgen/rgstmt.scm[1.7]:
Decisions to use variable cache mechanism are raised to a higher level
to allow special handling of IC procedure references.

* compiler/rtlgen/rgcomb.scm[1.25]:
When counting the operands of a combination, do not include operands
which do not push any values. This means that `length' is not
adequate for computing the number of operands. Instead use the new
procedure `count-operands'.

1987-06-12 Chris Hanson <[email protected]>

* compiler/rtlgen/rgcomb.scm[1.24]:
When generating code for combinations whose operator is known, use
original parameters to that procedure to determine which operands must
be pushed.

1987-06-11 Chris Hanson <[email protected]>

* microcode/version.h[9.67]:
Fix bugs in signalling of interrupts through the compiled code
interface to the lookup code.

* microcode/utils.c[9.31]:
Handle pathological error codes in `Do_Micro_Error'.

* runtime/error.scm[13.48]:
Pass error-code to error handlers as well as expression, since some
error handlers need to know this.

* compiler/machines/bobcat/lapgen.scm[1.180]:
`generate-invocation-prefix' now knows not to reallocate fixed
register arguments to invocations. In particular,
`cache-reference-apply' accepts A3 as an argument, and under certain
circumstances that register was being allocated as a temporary for the
`move-frame-up' invocation.

* compiler/back/lapgn1.scm[1.36]:
Add `need-registers!' operation.

1987-06-11 Guillermo J. Rozas <[email protected]>

* compiler/machines/bobcat/insmac.scm[1.118.1.1],
compiler/machines/bobcat/instr1.scm[1.61.1.2]:
Rewrite effective address transformers to make them work at syntax
time more easily.

1987-06-10 Chris Hanson <[email protected]>

* compiler/machines/bobcat/lapgen.scm[1.179]:
For `move-frame-up' invocation prefix, zero frame-size does not
indicate that nothing need be done.

* compiler/machines/bobcat/machin.scm[1.49.1.1]:
Use INSTRUCTIONS and INSTRUCTION macros to facilitate rewriting the
lap generation rules.

* compiler/machines/bobcat/lapgen.scm[1.178.1.1]:
Rewrite the lap generation rules using the INSTRUCTIONS and
INSTRUCTION macros.

* compiler/base/macros.scm[1.58.1.1]:
Add INSTRUCTIONS and INSTRUCTION macros to rewrite the lap generation
rules.

1987-06-10 Guillermo J. Rozas <[email protected]>

* compiler/base/macros.scm[1.58.1.2]:
Definition of rule-result-expression has changed, and
EVALUATE is now treated specially by the INSTRUCTIONS macro.

* compiler/back/asmmac.scm[1.2.1.1]:
Definition of rule-result-expression has changed.

* compiler/base/pmpars.scm[1.1.1.1]:
Add original bindings for transformers.

* compiler/machines/bobcat/instr1.scm[1.61.1.1],
compiler/machines/bobcat/instr2.scm[1.9.1.1],
compiler/machines/bobcat/instr3.scm[1.9.1.1]:
No qualifiers in LAP syntaxer rules.

1987-06-09 Chris Hanson <[email protected]>

* compiler/machines/bobcat/decls.scm[1.9],
compiler/machines/bobcat/make.scm-68040[1.21]:
Split some files up for compilation.

* compiler/rtlopt/rcse1.scm[1.109]:
Split into pieces for compilation.

* microcode/interp.c[9.27], microcode/version.h[9.66]:
Fix bug in assignment to compiler cached variables.

1987-06-08 Chris Hanson <[email protected]>

* compiler/machines/bobcat/lapgen.scm[1.178]:
`load-dnw' returns a single instruction, not a list.

1987-06-05 Chris Hanson <[email protected]>

* sf/make.scm[3.9], sf/xform.scm[3.4]:
Must treat error-combination specially here to prevent block from
being marked unsafe.

* runtime/system.scm[13.50]:
Fix stupid bug where files were not fasloaded in `load-system!'.

* microcode/bchpur.c[9.31]:
Renamed variable.

* runtime/system.scm[13.49]:
New microcode handles purification of compiled code blocks without
special treatment by the runtime system.

* microcode/bchpur.c[9.30], microcode/gccode.h[9.24],
microcode/gctype.c[9.23], microcode/purify.c[9.28],
microcode/purutl.c[9.29], microcode/types.h[9.23],
microcode/utabmd.scm[9.34], microcode/version.h[9.65]:
Define new type code for compiled code blocks to guarantee that they
are not put in pure space.

* runtime/system.scm[13.48]:
Do not put compiled code into pure space, just constant space. This
is a temporary hack until the microcode is fixed to recognize compiled
code blocks specially.

* microcode/comutl.c[1.2], microcode/utabmd.scm[9.33]:
Change definition and name of compiler address operations so that they
work on all kinds of compiled code addresses.

1987-06-05 Guillermo J. Rozas <[email protected]>

* microcode/Attic/config.h[9.26], microcode/bchdmp.c[9.31],
microcode/bintopsb.c[9.26], microcode/boot.c[9.36],
microcode/dump.c[9.24], microcode/extern.h[9.26],
microcode/fasdump.c[9.28], microcode/fasl.h[9.24],
microcode/fasload.c[9.27], microcode/load.c[9.23],
microcode/ppband.c[9.25], microcode/psbtobin.c[9.25],
microcode/storage.c[9.34], microcode/version.h[9.64]:
Fix a long standing bug in fasdump, fasload, band-dump, and band-load.
If a file write fails, a scheme error is reported. Similarly if a
read fails.

1987-06-04 Chris Hanson <[email protected]>

* runtime/histry.scm[13.47]:
Fix `unfold-and-reverse-rib' so that it properly handles both kinds of
dummy compiler reductions. Previously it was only handling those that
were generated by `New_Compiler_Subproblem' in the microcode.

* compiler/machines/bobcat/lapgen.scm[1.177]:
Add support for multiple cache-variable entries.

* runtime/error.scm[13.47]:
Add error handlers for compiled code unbound/unassigned variable
errors during lookup-apply operations.

1987-06-03 Chris Hanson <[email protected]>

* microcode/utabmd.scm[9.32]:
New primitive `return-address-block'.
Alias `return-code' for `return-address'.

* microcode/version.h[9.63]:
Create multiple cache-variable entries in the compiled code interface.

1987-06-02 Chris Hanson <[email protected]>

* compiler/rtlgen/rgcomb.scm[1.23]:
Change the frame-size for invocation:lookup to indicate the size of
the frame at application time rather than when it executes the
instruction.

* compiler/machines/bobcat/lapgen.scm[1.176]:
Optimize code being emitted for lookup-apply.

* compiler/base/ctypes.scm[1.48]:
Combination should be added to vnode-combinations of the operator
vnode, if any. Previously it was added to vnode-combinations of the
combination-value, completely incorrect.

* runtime/unsyn.scm[13.47]:
Change unsyntaxing of `error' and `bkpt', which now use absolute
references for the combination operator.

* runtime/Attic/syntax.scm[13.49]:
Change `error' and `bkpt' macros to use absolute references for the
operator of the expansion.

* microcode/version.h[9.62]:
Fix bugs in compiled code interface variable cache code.

* compiler/machines/bobcat/lapgen.scm[1.175]:
Fix bugs in rule for `invocation:cache-reference'.

* compiler/rtlbase/rtlcon.scm[1.9]:
Simplify `extension' argument to invocation:cache-reference.

* runtime/histry.scm[13.46]:
`history-transform' was returning '() at the end of a chain of
subproblems, instead of the value of `the-empty-history'. This caused
the debugger to signal an error when walking past the end of the
history.

* runtime/unsyn.scm[13.46]:
Change unsyntaxing of conditionals to handle case of (if (not x) y)
correctly.

1987-06-02 Guillermo J. Rozas <[email protected]>

* runtime/system.scm[13.47]:
Bug in dumpworld.

* microcode/bchpur.c[9.29]:
Treat weak pairs correctly.

* microcode/bchdmp.c[9.30], microcode/bchgcc.h[9.27],
microcode/bchgcl.c[9.29], microcode/bchmmg.c[9.30],
microcode/bchpur.c[9.28], microcode/dump.c[9.23],
microcode/fasdump.c[9.27], microcode/purify.c[9.27],
microcode/version.h[9.61]:
Add fasdump and purify to bchscheme.

1987-06-01 Chris Hanson <[email protected]>

* compiler/machines/bobcat/lapgen.scm[1.174]:
Implement rule for invocation:cache-reference.

* compiler/rtlgen/rgcomb.scm[1.22]:
Install better code for lookup-apply in the cached-variable case. Do
in-line coding of reference-trap type test.

* compiler/rtlopt/rcse1.scm[1.108]:
Canonicalize the destination of a memory assignment statement.
Rewrite the top level graph walker to mark nodes so that each node is
walked exactly once. Optimize the walking algorithm to reduce copying
of the state to a minimum.

* compiler/rtlgen/rgstmt.scm[1.6]:
Make copy of assignment to cell of cached variable assignment.
Otherwise the CSE cannot optimize because the assignment occurs at the
join of two control paths.

* compiler/rtlgen/rgrval.scm[1.9]:
Make copy of assignment to value of cached variable reference.
Otherwise the CSE cannot optimize because the assignment occurs at the
join of two control paths.

* microcode/version.h[9.60]:
Compiler variable cache initialization routines accept the offset of
the constant slot as a memory offset (in objects) rather than as a
vector index.

* compiler/machines/bobcat/machin.scm[1.49]:
Extend `rtl:expression-cost' to know about `variable-cache'
expression.

* compiler/machines/bobcat/lapgen.scm[1.173]:
Define rules for cached variable reference RTL forms.

* compiler/rtlgen/rgrval.scm[1.8]:
Change interpreter-call:cache-reference to extract the type of the
cache reference before testing it. For cached variable compilations,
do not include ic environments in the closure, it is already in the
compiled code block.

* compiler/rtlgen/rgstmt.scm[1.5]:
Change interpreter-call:cache-assignment to extract the type of the
cache reference before testing it.

* compiler/rtlopt/rcse1.scm[1.107]:
Change interpreter-call:cache-assignment/reference/unassigned? to
CSE their "name" argument.

* compiler/rtlbase/rtlcon.scm[1.8], compiler/rtlbase/rtlty1.scm[1.9]:
Change interpreter-call:cache-assignment/reference/unassigned? to
simplify their "name" argument during construction.

* compiler/machines/bobcat/lapgen.scm[1.172]:
Teach `expression->machine-register!' about (UNASSIGNED) expression.

* compiler/rtlbase/rtlty1.scm[1.8]:
Finish changing `rtl:make-constant' so that it notices SCode
unassigned objects.

1987-05-31 Chris Hanson <[email protected]>

* compiler/rtlgen/rgcomb.scm[1.21]:
Change lookup-apply code to use variable cache when appropriate.

* compiler/machines/bobcat/lapgen.scm[1.171],
compiler/machines/bobcat/machin.scm[1.48],
compiler/rtlbase/rtlcon.scm[1.7], compiler/rtlopt/rcse1.scm[1.106]:
Add new RTL types for cached variable lookup mechanism.

* compiler/rtlbase/rtlty1.scm[1.7]:
Add new RTL types for cached variable lookup mechanism. Change
constructor for constants to know about unassigned object.

* microcode/interp.c[9.26], microcode/returns.h[9.25],
microcode/storage.c[9.33], microcode/utabmd.scm[9.31],
microcode/version.h[9.59]:
Add several new compiled-code entry points with return addresses.

* microcode/boot.c[9.35]:
Redefine the Non_Object so that it is interned between bands.

* compiler/machines/bobcat/machin.scm[1.47]:
Add parameter describing where IC frame parameters are located within
the frame.

1987-05-30 Guillermo J. Rozas <[email protected]>

* microcode/version.h[9.58]:
Sun floating arithmetic bug fixed.

* microcode/Attic/config.h[9.25]:
Sun floating arithmetic fixed.

1987-05-29 Chris Hanson <[email protected]>

* compiler/machines/bobcat/lapgen.scm[1.170],
microcode/version.h[9.57]:
Split entry points block into two sections to make it compatible with
previous version.

* compiler/back/lapgn1.scm[1.35],
compiler/machines/bobcat/machin.scm[1.46],
compiler/rtlbase/rtlcon.scm[1.6], compiler/rtlbase/rtlty1.scm[1.6],
compiler/rtlgen/rgrval.scm[1.7], compiler/rtlgen/rgstmt.scm[1.4]:
Add stuff for variable cache entry points to interpreter.

* compiler/machines/bobcat/lapgen.scm[1.169]:
Change compiler entry points to account for new microcode with
variable cacheing entries. Change `indirect-reference!' to allow the
address part of an indirect register to reside in its home.

* microcode/utabmd.scm[9.30]:
Add new return codes for compiled code interface variable cache.

* runtime/Attic/syntax.scm[13.48]:
*** empty log message ***

* runtime/Attic/syntax.scm[13.47]:
Give better error message for badly formed pattern in `named-lambda'.

* runtime/unsyn.scm[13.45]:
In `unsyntax-shallow-FLUID-LET', turn lambda body into list of actions
before mapping over it.

1987-05-29 Guillermo J. Rozas <[email protected]>

* microcode/sgraph_a.c[1.2]:
Undefined procedure.

* microcode/bchdmp.c[9.29], microcode/boot.c[9.34],
microcode/extern.h[9.25], microcode/fasdump.c[9.26],
microcode/fasload.c[9.26], microcode/fhooks.c[9.23],
microcode/interp.c[9.25], microcode/lookup.h[9.37],
microcode/sdata.h[9.24], microcode/storage.c[9.32],
microcode/trap.h[9.38], microcode/version.h[9.56]:
Changes to make fast variable reference in compiled code work:
- New traps (TRAP_COMPILER_CACHED and dangerous).
- Support in lookup and interpret.
- Change to fasdump to generalize the fixed utility kludge.

1987-05-28 Chris Hanson <[email protected]>

* compiler/rtlopt/rcse1.scm[1.105]:
Do not cache assignments from a machine register to a pseudo register.

* compiler/rtlbase/rtlexp.scm[1.2]:
*** empty log message ***

* compiler/back/symtab.scm[1.41]:
In `symbol-table-bindings', return alist of values rather than binding
objects.

* compiler/back/symtab.scm[1.40]:
Add extra operation to extract bindings from symbol table.

* microcode/utils.c[9.30]:
Fix randomness in switch statements for wrong_type_arg and
bad_range_arg.

* microcode/returns.h[9.24], microcode/storage.c[9.31]:
Add entry points for variable caches and uuo links.

1987-05-28 Guillermo J. Rozas <[email protected]>

* microcode/findprim.c[9.25]:
Add JAR's changes for VMS.

* microcode/version.h[9.55]:
Cosmetic change to boot.c, some cleaning up of hardware trap code in unix.c.

* microcode/boot.c[9.33]:
Newline missing in end of computation termination.

1987-05-27 Chris Hanson <[email protected]>

* compiler/rtlgen/rgrval.scm[1.6]:
Guarantee that interpreter-call result registers are referenced
immediately after the interpreter-call occurs. Otherwise the lap
generator may reallocate them to some other purpose.

* microcode/boot.c[9.32], microcode/utils.c[9.29],
microcode/version.h[9.54], runtime/intrpt.scm[13.44]:
Interrupts that are out of range are now signalled through the last
slot in the interrupt vector.

1987-05-26 Chris Hanson <[email protected]>

* compiler/machines/bobcat/decls.scm[1.8],
compiler/machines/bobcat/make.scm-68040[1.20]:
Split file into two pieces.

* compiler/machines/bobcat/lapgen.scm[1.168]:
Record pop in these rules.

* compiler/back/syntax.scm[1.14], runtime/bitstr.scm[13.43]:
Add error check for positive arguments to signed integer coercion.

1987-05-26 Guillermo J. Rozas <[email protected]>

* runtime/hash.scm[13.46]:
Patch because primitive-datum is broken.

1987-05-23 Guillermo J. Rozas <[email protected]>

* microcode/prims.h[9.26]:
Add PRIMITIVE_ABORT.

* microcode/prims.h[9.25]:
Add PRIMITIVE_RETURN

1987-05-22 Chris Hanson <[email protected]>

* compiler/machines/bobcat/lapgen.scm[1.167]:
Add special lookup for compiler to do side-effect for value. Also
define rules to handle more cases for eq-test.

* compiler/base/utils.scm[1.88]:
Define more operations on SCode comments.

* compiler/rtlbase/rtlcon.scm[1.5], compiler/rtlbase/rtlty1.scm[1.5],
compiler/rtlgen/rgrval.scm[1.5]:
Add special lookup for compiler to do side-effect for value.

1987-05-21 Chris Hanson <[email protected]>

* microcode/returns.h[9.23], microcode/storage.c[9.30],
microcode/utabmd.scm[9.29], microcode/version.h[9.53]:
Add special lookup for compiler to do side-effect for value.

* runtime/Attic/syntax.scm[13.46], runtime/unsyn.scm[13.44]:
Undo FLUID-LET changes from last version.

* compiler/machines/bobcat/lapgen.scm[1.166]:
Fix bug in expansion of interpreter-call:enclose. When the number of
things being enclosed is sufficiently large, the generator was forcing
the allocation of D0 for use as a loop counter. This had the
unfortunate side effect that if D0 contained some unboxed object then
that object would be flushed to memory.

* compiler/rtlgen/rtlgen.scm[1.15]:
Delete the fg-entry of each procedure and quotation as it is
rtl-generated. Remove the time-ordering of the rtl generation as the
blecherous side-effect that required it has been removed as well.

* compiler/rtlgen/rgstmt.scm[1.3]:
Temporary registers no longer have a type, and need not be handled
specially for that. Implement handling for value-register type.

* compiler/rtlgen/rgrval.scm[1.4]:
Temporary registers no longer have a type, and need not be handled
specially for that.

* compiler/rtlgen/rgcomb.scm[1.20]:
Install special handling for close-coded combinations whose target is
a temporary. Such combinations must be followed by code to assign the
value register into the temporary. Also put in error check to
guarantee that this never happens in reduction position.

* compiler/base/macros.scm[1.58]:
Rewrite the expansion for the RTL construction procedures so that they
in-line code correctly. Previously they were lexprs, which do not
integrate very well.

1987-05-19 Chris Hanson <[email protected]>

* compiler/machines/bobcat/make.scm-68040[1.19]:
Move `mvalue' to the `base' directory. The `source' directory no
longer exists.

* compiler/back/regmap.scm[1.88]:
Change `add-pseudo-register-alias' so that it accepts an argument
`saved-into-home?'. This is used to initialize the map-entry slot of
the same name if the register has no other aliases.

* compiler/back/lapgn1.scm[1.34]:
Fix `move-to-alias-register!' so that when an alias is reused for a
register that has no other aliases, then that alias is marked as
needing to be saved into its home. Improve
`reuse-pseudo-register-alias!' so that it doesn't generate a move
instruction from a register to itself. Fix a bug which prevented the
clear-map instructions from being inserted when the next node had
already been generated.

* runtime/Attic/syntax.scm[13.45], runtime/unsyn.scm[13.43]:
Change shallow FLUID-LET not to use side-effect for value. This
improves the performance of compiled code. Also change one-armed IF
and COND without ELSE to use new constant marker for the unused
branch.

* runtime/scode.scm[13.44]:
Stupidity.

* runtime/scode.scm[13.43]:
Define `undefined-conditional-branch' constant which is used to build
two-armed IF statements and COND with no ELSE clause.

1987-05-18 Chris Hanson <[email protected]>

* compiler/machines/bobcat/decls.scm[1.7]:
`rcseep' no longer has any external definitions.

* compiler/rtlopt/rcseep.scm[1.5]:
Delete definitions of most predicates, since they are used in one
place only. They have been in-line coded in the appropriate places.

* compiler/rtlopt/rcse1.scm[1.104]:
Fix the memory-invalidation code for assignments to memory.
Assignments to non-varying addresses were not invalidating the
destination of the assignment! This was just screwed up.

* compiler/machines/bobcat/make.scm-68040[1.18]:
Not so fast!

* compiler/machines/bobcat/make.scm-68040[1.17]:
Delete `rcseep' from the files list.

* compiler/back/lapgn1.scm[1.33]:
Generalize `register-has-alias?' to handle machine registers also.

* compiler/rtlgen/rgcomb.scm[1.19]:
Guarantee that the `number-pushed' entry on lexpr invocations contains
the number of pushed operands +1 if the operator is pushed.

* compiler/machines/bobcat/lapgen.scm[1.165]:
Extend tests of registers to handle machine registers as well.

* compiler/rtlgen/rgrval.scm[1.3]:
Forgot to splice setup code into expansion for access.

1987-05-17 Chris Hanson <[email protected]>

* compiler/machines/bobcat/lapgen.scm[1.164]:
Due to changes in the top level of the compiler, determining the
number of parameters of a procedure is done differently.

1987-05-16 allen <[email protected]>

* compiler/machines/bobcat/lapgen.scm[1.163]:
Fix error in SETUP-LEXPR rule -- first arg to procedure-header was 'label';
should have been 'procedure'

1987-05-16 Chris Hanson <[email protected]>

* compiler/rtlgen/rgcomb.scm[1.18]:
For known calls to procedures that are not externally visible, do not
pass arguments that correspond to parameters that are integrated in
the body of the procedure.

* compiler/rtlbase/rtlcon.scm[1.4]:
Typo.

1987-05-15 Chris Hanson <[email protected]>

* compiler/back/lapgn1.scm[1.32], compiler/base/ctypes.scm[1.47],
compiler/base/utils.scm[1.87],
compiler/machines/bobcat/lapgen.scm[1.162],
compiler/rtlbase/rtlcon.scm[1.3], compiler/rtlbase/rtlty1.scm[1.4]:
Change all RTL constructs that contain pointers to compiler internal
data structures so that they only point to symbolic structures. This
means that all occurrences of continuation and procedure objects have
been replaced by the corresponding label. There is now a fairly fast
map from the labels to their objects.

This was done to make it possible to change the debugging file output
routines so that they fasdump rather than writing their output.

* compiler/rtlgen/rgstmt.scm[1.2]:
Case where value-register is assigned during a subproblem is actually
interesting. This needs to be better handled sometime.

* microcode/intern.c[9.41], microcode/utabmd.scm[9.28],
microcode/version.h[9.52]:
Implement new primitive `string-hash-mod' to enable efficient
string/symbol hashed tables to be implemented in Scheme.

1987-05-14 Chris Hanson <[email protected]>

* microcode/bitstr.c[9.29], microcode/bitstr.h[1.2],
microcode/char.c[9.22], microcode/fixnum.c[9.24],
microcode/hooks.c[9.24], microcode/object.h[9.23],
microcode/prims.h[9.24], microcode/string.c[9.24],
microcode/syntax.c[1.2], microcode/utils.c[9.28],
microcode/vector.c[9.24], microcode/version.h[9.51]:
Implement new primitive argument checking interface and argument error
signalling procedures. Start using convention that macro names are
all upper case.

* compiler/back/lapgn1.scm[1.31]:
Fix arguments to `reference-temporary-register!'.

1987-05-13 Chris Hanson <[email protected]>

* compiler/machines/bobcat/lapgen.scm[1.161]:
Fix broken eq-test generators.

* compiler/back/lapgn1.scm[1.30]:
Add operation to test whether a register has an alias.

1987-05-11 Chris Hanson <[email protected]>

* microcode/intern.c[9.40]:
Add hook to symbol interning code so users can keep track of the
symbols in the obarray. This is intended to allow maintaining data
structures for special purposes, e.g. completion of symbol names.

* microcode/version.h[9.50]:
Install new versions of Edwin syntax table primitives.

Add hook to symbol interning code so users can keep track of the
symbols in the obarray. This is intended to allow maintaining data
structures for special purposes, e.g. completion of symbol names.

1987-05-09 Chris Hanson <[email protected]>

* sf/make.scm[3.8]:
Implement new method for mapping pathnames to values. Reimplement
`sfu?' flag to match documentation for existing optimizer.

* sf/toplev.scm[3.3]:
Implement new method for mapping pathnames to values.

* sf/usiexp.scm[3.3]:
*** empty log message ***

* sf/gconst.scm[3.2], sf/usiexp.scm[3.2]:
Add fixnum arithmetic for use by compiled code.

* microcode/fixnum.c[9.23]:
Change primitives to signal errors when arguments are of wrong type.
Change predicates to return normal boolean values.

* compiler/rtlgen/rtlgen.scm[1.14]:
Split `generate/operand' out of `generate/subproblem' to facilitate
rewrite of primitive combination open-coding routines.

* compiler/rtlgen/rgcomb.scm[1.17]:
Restructure so that operator/operand code is generated before the
combination and passed through. This is because the primitive open
coders will examine the already-generated operands to determine things
about them.

* compiler/machines/bobcat/lapgen.scm[1.160]:
Add new rules for `eq-test', and change rule that pops into register
so that it uses machine registers.

* microcode/bitstr.c[9.28]:
Try a different fix for bignum_to_bit_string, as the other one seems
to be screwing things up.

* microcode/bitstr.c[9.27], microcode/version.h[9.49]:
Fix two bugs: (1) `unsigned-integer->bit-string' was not clearing out
those parts of the result which were not filled in by copying from a
bignum. (2) `bit-substring-find-next-set-bit' was not correctly
advancing the scan pointer for the last word of a multi-word string.

* compiler/base/ctypes.scm[1.46]:
Add predicates for examining a combination's compilation type.

* sf/make.scm[3.7]:
Exclude error-procedure combinations from the error generated by
encountering the-environment expressions. Delete `package/safe?'.

* sf/copy.scm[3.5]:
Exclude error-procedure combinations from the error generated by
encountering the-environment expressions.

1987-05-08 Chris Hanson <[email protected]>

* sf/make.scm[3.6]:
Change combination optimizations to eliminate bug caused by deleting
unreferenced parameters. Really need to do side effect analysis to
perform this optimization. Meanwhile, just deleting integrated
parameters should be sufficient.

Also flushed use of environment constructing load-system since
auxiliary variable compilation is now fixed.

* sf/pardec.scm[3.4]:
Add new operator to extract the integrated variables from a set of
declarations.

* sf/subst.scm[3.5]:
Change code that optimizes let-like combinations so that it only
removes parameters that are declared integrable, rather than
unreferenced parameters. This is a makeshift arrangement until we can
perform side effect analysis on the operands to determine which ones
are really needed.

1987-05-07 Chris Hanson <[email protected]>

* compiler/back/lapgn1.scm[1.29],
compiler/machines/bobcat/lapgen.scm[1.159]:
Add code to keep track of items pushed and popped on the stack, to
produce the offset between the frame-pointer and the stack-pointer
when it is needed. This is used to convert frame-pointer references
into stack-pointer references.

* compiler/rtlgen/rtlgen.scm[1.13]:
Guarantee that nodes are generated in the control flow ordering. This
is because a `combination-value' is converted into a `value-temporary'
by a side-effect when the combination is generated. So the
combination must be generated before any references to its value are.

* compiler/rtlgen/rgcomb.scm[1.16]:
The receiver-offset for message senders was including the pushed
operands of a call. Since we are now using a frame pointer, it need
only include the block frame size. The pushed operands will be taken
care of by the LAP generator.

* compiler/machines/bobcat/make.scm-68040[1.16]:
Rewrite of RTL generator to new structure, now using frame pointer
instead of stack pointer for frame references.

* compiler/rtlgen/rgcomb.scm[1.15], compiler/rtlgen/rgrval.scm[1.2],
compiler/rtlgen/rtlgen.scm[1.12]:
Rewrite of RTL generator. Flush `next-generator' mechanism, use
multiple value return and explicit gluing of CFGs. Flush offset
argument, use frame-pointer instead; offset will be computed at LAP
generation time.

* compiler/rtlopt/rcse1.scm[1.103], compiler/rtlopt/rcseep.scm[1.4],
compiler/rtlopt/rcseht.scm[1.3]:
Implement changes required by conversion of RTL generator to use of
frame pointer. Flush all special stack modeling.

* compiler/base/utils.scm[1.86]:
Implement `boolean=?'.

* compiler/machines/bobcat/machin.scm[1.45],
compiler/rtlbase/rtlty1.scm[1.3]:
Add frame-pointer register.

* compiler/rtlbase/rtlcon.scm[1.2]:
*** empty log message ***

* compiler/rtlbase/rtlcfg.scm[1.2]:
Add `frame-pointer-offset' slot to all rnodes, for use by
lap-generator so it can convert frame pointer references into
stack-pointer references.

* compiler/base/pmlook.scm[1.4]:
Split off application of result from main body of matcher to
facilitate timing measurements.

* compiler/machines/bobcat/decls.scm[1.6]:
Change dependencies to account for reorganization of RTL generator
into several files.

* compiler/base/ctypes.scm[1.45]:
Delete `continuation-delta'. Add `continuation-frame-pointer-offset'
for use by new frame-pointer code.

* compiler/base/cfg1.scm[1.148]:
Implement CFG combinators that are generic in the latter argument.

1987-05-06 Chris Hanson <[email protected]>

* runtime/advice.scm[13.43]:
If a lambda expression was traced twice, it was being added to the
advice population twice, despite the fact that it was already there.
However, only one copy of the trace advice would be installed. Then,
do untrace would cause a failure because the second time that the
lambda expression was looked at it would contain no advice of that type.

1987-05-04 Chris Hanson <[email protected]>

* sf/make.scm[3.5], sf/subst.scm[3.4]:
Implement special handling for variables of the form

(ACCESS <name> #F)

These are integrated regardless of the declarations given for the
program.

Also fix bug in `integrate/reference-operator' which caused the
optimizer to hang in a loop.

* sf/usicon.scm[3.2], sf/usiexp.scm[3.1]:
Implement special handling for variables of the form

(ACCESS <name> #F)

These are integrated regardless of the declarations given for the
program.

1987-05-03 Chris Hanson <[email protected]>

* compiler/rtlgen/rtlgen.scm[1.11]:
Split off expression stuff.

1987-04-30 Chris Hanson <[email protected]>

* microcode/version.h[9.48]:
In `Keyboard_Input_Procedure', the test for interrupts just before
calling `getchar' was only looking for `INT_Character'. Expand this
to include `INT_Timer' as well, since that was causing a problem for
Mitch Resnick. Why is this restricting which interrupts it looks at?
A priori, I would think it should look at all interrupts.

1987-04-29 Chris Hanson <[email protected]>

* compiler/rtlgen/rgcomb.scm[1.14]:
Split off handling of primitive combinations to another file.

* microcode/utils.c[9.27], microcode/utils.c[9.26]:
Change profile recording hook to use 32 bit C long arithmetic rather
than 24 bit fixnum arithmetic.

* microcode/utils.c[9.25]:
Define hook for recording primitive profiling information.

* runtime/utabs.scm[13.46]:
Define variables to contain maximum primitive numbers.

* microcode/boot.c[9.31]:
Cause generated fixed objects vector to have some extra slots for
expansion and debugging purposes.

* microcode/prims.h[9.23], microcode/version.h[9.47]:
Add hook for primitive procedure profiling.

* microcode/utabmd.scm[9.27]:
Add PRIMITIVE-PROFILING-TABLE slot to fixed objects vector.

1987-04-28 Chris Hanson <[email protected]>

* microcode/fixobj.h[9.25]:
Add slot for table to contain profiling information for primitives.

* microcode/scheme.h[9.24]:
Initialize `ENABLE_PRIMITIVE_PROFILING' flag when debugging features
are selected.

1987-04-27 Chris Hanson <[email protected]>

* sf/copy.scm[3.4]:
Fix bug in copying of declarations, where variable was passed to
`block/lookup-name' rather than the variable's name.

* compiler/machines/bobcat/instr1.scm[1.61]:
Turn on integration dependencies that were commented out here.

* compiler/machines/bobcat/decls.scm[1.5]:
Add integration dependency between the bobcat machine instruction
definition files.

* compiler/machines/bobcat/make.scm-68040[1.15]:
Do not use the "load" package any longer. Defaultly load some
compiled files.

* runtime/system.scm[13.46]:
Flush junk to put compiled code in constant space rather than pure
space. New compiler doesn't need that.

* compiler/rtlgen/rgcomb.scm[1.13]:
Change `apply-stack' prefix to subtract 1 from the n-levels, because
the innermost stack frame does not have a message receiver pushed.

* compiler/machines/bobcat/lapgen.scm[1.158]:
`make-non-pointer-literal' was not being careful to handle negative
`datum' values correctly, resulting in the type code of the literal
being off by one.

1987-04-25 Chris Hanson <[email protected]>

* microcode/bitstr.c[9.26], microcode/vector.c[9.23]:
Install new primitives.

* microcode/utabmd.scm[9.26], microcode/version.h[9.46]:
Install new primitives for vectors and bit strings.

* runtime/bitstr.scm[13.42], runtime/vector.scm[13.43]:
Install new built-in primitives for microcode 9.46.

* sf/gconst.scm[3.1]:
Add new primitives for microcode 9.46.

1987-04-25 Guillermo J. Rozas <[email protected]>

* runtime/output.scm[13.43], runtime/unpars.scm[13.44]:
Fix IO redirection bug.

1987-04-24 Chris Hanson <[email protected]>

* compiler/back/lapgn1.scm[1.28]:
Change rules database so that it is sorted by statement-type. Treat
ASSIGN specially since it is by far the most common type.

* compiler/rtlopt/rcse1.scm[1.102], compiler/rtlopt/rcseep.scm[1.3],
compiler/rtlopt/rcserq.scm[1.2]:
Change state implementation so that register quantities are allocated
on demand.

* runtime/pp.scm[13.43], runtime/sdata.scm[13.43],
runtime/unpars.scm[13.43]:
Change stack parser, unparser, and pretty-printer to handle
reference-trap objects specially, detecting them before they get
assigned to variables, and printing them in a reasonable way.

1987-04-22 Chris Hanson <[email protected]>

* compiler/rtlopt/rcseht.scm[1.2]:
Rewrite `hash-table-copy' so that it is O(n) instead of O(n^2) in the
number of elements.

* compiler/machines/bobcat/decls.scm[1.4]:
Forgot to add "rtlcon" and "rtlexp" to the integration dependency set.

1987-04-21 Chris Hanson <[email protected]>

* compiler/base/pmlook.scm[1.3]:
Change structure of closing block to aid compilation.

* compiler/machines/bobcat/decls.scm[1.3],
compiler/machines/bobcat/make.scm-68040[1.14]:
Split `front-end/rtl' into two files to aid compilation.

* microcode/version.h[9.45]:
A variety of small changes related to the GC out of space error.

* compiler/rtlgen/rgcomb.scm[1.12]:
Allow constant combinations to have any temporary as a target.

* microcode/utils.c[9.24]:
Change string_to_symbol to compute the correct argument to
Primitive_GC. Previously it was using (Memtop - Free) which could
have been negative (and we saw at least one case where something like
that had happened).

* microcode/interp.c[9.24]:
Change some error messages to go out to stderr.

* microcode/storage.c[9.29]:
Initialize `GC_Space_Needed' to a reasonable value.

* microcode/bchmmg.c[9.29], microcode/memmag.c[9.29]:
Cause all GCs to return through the return code RC_NORMAL_GC_DONE.

* compiler/base/ctypes.scm[1.44]:
Define new per-combination flag which indicates whether or not the
combination has been constant-folded.

* compiler/rtlgen/rgcomb.scm[1.11]:
Solution to constant folding problem is overly conservative. Earlier
change (which guaranteed that the combination-value became unknown
when the operator or operands were) is sufficient.

1987-04-20 Guillermo J. Rozas <[email protected]>

* microcode/version.h[9.44], microcode/version.h[9.43]:
Update the version: release.

1987-04-18 Chris Hanson <[email protected]>

* compiler/rtlgen/rtlgen.scm[1.10]:
When building a closure frame, do not attempt to lookup variables
which are integrated, as it will cause an error. This is probably not
needed given the change which has been made elsewhere which deletes
such variables from the closure block previous to this point.

* compiler/base/ctypes.scm[1.43]:
Change the analysis performed to determine whether a variable has been
assigned. Do not treat auxiliary bindings specially, except those
that have been identified as having constant or procedure values.

This unfortunately produces less efficient code, but guarantees that
there will be no troubles with the order of events when creating
closures.

* compiler/rtlgen/rgcomb.scm[1.10]:
If a combination's value is constant, do not replace it by the
constant value, because we have no side-effect analyzer to determine
whether that is safe.

* runtime/debug.scm[13.43]:
`goto-command', when selecting a subproblem with no reductions, tried
to set the reduction number to 1, rather than 0. This previously
"worked" because

(list-ref '() 1) ==> '()

instead of signalling an error as it now does.

1987-04-17 Chris Hanson <[email protected]>

* compiler/machines/bobcat/lapgen.scm[1.157]:
Add new rules for cases which arise when dead-code-elimination phase
is not performed.

* compiler/rtlopt/rlife.scm[1.56]:
Split into three files to aid in compilation.

* microcode/version.h[9.42]:
Two bugs:

1. When searching the formals list in `extend_frame', the variable
`scan' was not being incremented.

2. The primitive procedure `lexical-unassigned?' should signal an
error if the argument variable is unbound.

* compiler/rtlgen/rgcomb.scm[1.9]:
Forgot to add one (for GC header) to vector-ref index when
open-coding.

* compiler/base/utils.scm[1.85]:
External primitives are not safe.

* compiler/back/lapgn1.scm[1.27], compiler/base/macros.scm[1.57],
compiler/base/pmlook.scm[1.2],
compiler/machines/bobcat/decls.scm[1.2],
compiler/machines/bobcat/make.scm-68040[1.13],
microcode/version.h[9.41]:
*** empty log message ***

* microcode/bitstr.c[9.25]:
Prim_bit_string_zero_p had 2 as its arity rather than 1, causing the
stack to get out of sync.

* runtime/boot.scm[13.43]:
Eliminate use of `mapcar', clean up some other things too.

* runtime/histry.scm[13.45]:
Loop which was walking around reductions used `eq?' to test for
termination. Because the arguments to `eq?' were variables, the
variable lookup code was stripping the danger bits off of the values.
The new microcode does not do this so it was necessary to explicitly
strip the danger bits off in the appropriate places.

1987-04-17 Guillermo J. Rozas <[email protected]>

* microcode/psbtobin.c[9.24]:
Accommodate VMS (bug in VMS 4 scanf).

* microcode/findprim.c[9.24]:
Patch to accommodate a bug in the 4.2 bsd vax C compiler.

1987-04-16 Guillermo J. Rozas <[email protected]>

* microcode/prim.c[9.25]:
Primitive-type returns "safe" types.

* microcode/bintopsb.c[9.25]:
Eliminate reference to TC_STRING

* microcode/bchdmp.c[9.28]:
Declare external procedure Make_Prim_Exts.

* microcode/fasdump.c[9.25], microcode/primutl.c[9.40],
microcode/version.h[9.40]:
Move Make_Prim_Exts to primutl.c.

* microcode/sysprim.c[9.22]:
Make built-in primitive table be generated automatically.

* microcode/Attic/config.h[9.24], microcode/array.h[9.22],
microcode/bchdmp.c[9.27], microcode/bchgcl.c[9.28],
microcode/bchmmg.c[9.28], microcode/bchpur.c[9.27],
microcode/bignum.c[9.23], microcode/bintopsb.c[9.24],
microcode/bitstr.c[9.24], microcode/bkpt.h[9.23],
microcode/boot.c[9.30], microcode/char.c[9.21],
microcode/const.h[9.24], microcode/daemon.c[9.24],
microcode/debug.c[9.24], microcode/default.h[9.22],
microcode/dmpwrld.c[9.24], microcode/extern.c[9.22],
microcode/extern.h[9.24], microcode/fasdump.c[9.24],
microcode/fasload.c[9.25], microcode/findprim.c[9.23],
microcode/fixnum.c[9.22], microcode/flonum.c[9.22],
microcode/future.c[9.22], microcode/gccode.h[9.23],
microcode/generic.c[9.22], microcode/history.h[9.22],
microcode/hooks.c[9.23], microcode/hunk.c[9.22],
microcode/intercom.c[9.22], microcode/interp.c[9.23],
microcode/interp.h[9.23], microcode/list.c[9.23],
microcode/load.c[9.22], microcode/lookup.h[9.36],
microcode/memmag.c[9.28], microcode/mul.c[9.22],
microcode/object.h[9.22], microcode/prim.c[9.24],
microcode/prim.h[9.36], microcode/prims.h[9.22],
microcode/psbtobin.c[9.23], microcode/purify.c[9.26],
microcode/purutl.c[9.28], microcode/returns.h[9.22],
microcode/scheme.h[9.23], microcode/sdata.h[9.23],
microcode/stack.h[9.21], microcode/step.c[9.22],
microcode/storage.c[9.28], microcode/string.c[9.23],
microcode/trap.h[9.37], microcode/usrdef.h[9.36],
microcode/utabmd.scm[9.25], microcode/utils.c[9.23],
microcode/vector.c[9.22], microcode/version.h[9.39],
microcode/winder.h[9.22]:
Make built in primitive tables be generated automatically.
Attempt to fix OS_read_char_ready on bsd.
Some changes for VMS.

* microcode/intern.c[9.39], microcode/primutl.c[9.39]:
*** empty log message ***

1987-04-15 Chris Hanson <[email protected]>

* runtime/utabs.scm[13.45]:
Change error messages so that error message truncation does not
discard interesting information.

1987-04-13 Chris Hanson <[email protected]>

* compiler/base/utils.scm[1.84]:
Add `set-current-history!' to list of unsafe primitives.

* compiler/base/utils.scm[1.83]:
Delete `extended-fixnum' type.

* runtime/error.scm[13.46], runtime/gcstat.scm[13.43],
runtime/io.scm[13.45], runtime/rep.scm[13.42],
runtime/system.scm[13.45]:
*** empty log message ***

* runtime/utabs.scm[13.44]:
Update `object-type' to reflect changes in the type tables.

1987-04-12 Chris Hanson <[email protected]>

* compiler/rtlgen/rtlgen.scm[1.9]:
Forgot to wrap `fetch' around reference to stack pointer register.

* compiler/machines/bobcat/lapgen.scm[1.156],
compiler/machines/spectrum/lapgen.scm[1.137],
compiler/rtlbase/rtlty1.scm[1.2], compiler/rtlgen/rgcomb.scm[1.8],
compiler/rtlgen/rtlgen.scm[1.8], compiler/rtlopt/rcse1.scm[1.101]:
There are two kinds of "stack" procedure, which can be distinguished
by whether or not the parent frame of the procedure is a stack frame.
Split these two and handle them separately. See "emodel" for details
about the new classifications.

1987-04-11 Guillermo J. Rozas <[email protected]>

* microcode/dmpwrld.c[9.23]:
Use a new version of GNU Emacs's unexec, and make it work on Suns.

* microcode/unexec.c[9.21]:
Use a newer version from GNU Emacs.

* microcode/bignum.h[9.23], microcode/fasload.c[9.24]:
The encore's cpp doesn't like => in strings.

* microcode/version.h[9.38]:
Better conditionalization for dumpworld.

* microcode/pagesize.h[9.38]:
*** empty log message ***

1987-04-09 Guillermo J. Rozas <[email protected]>

* microcode/version.h[9.37]:
Various changes to make it run on the hp9000s500.

* microcode/dmpwrld.c[9.22]:
Add sun3 support.

1987-04-08 Guillermo J. Rozas <[email protected]>

* microcode/string.c[9.22]:
Fix casting bug which prevented it from compiling on the hp9000s500.

1987-04-07 Guillermo J. Rozas <[email protected]>

* microcode/bitstr.c[9.23]:
The 500's compiler complains if a (bigdigit *) is not cast to
(Pointer *) before using Make_Pointer on it.

1987-04-06 Guillermo J. Rozas <[email protected]>

* microcode/version.h[9.36]:
Change in lookup because of vax compiler bug, and fix of poetential
bug in bignums.

* microcode/bignum.c[9.22], microcode/bignum.h[9.22]:
Fix potential bug in Big_To_Fix.

* microcode/trap.h[9.36]:
Macroize ILLEGAL_OBJECT becuase of compiler bug on the vax.

1987-04-03 Guillermo J. Rozas <[email protected]>

* runtime/Attic/syntax.scm[13.44], runtime/error.scm[13.45],
runtime/histry.scm[13.44], runtime/sdata.scm[13.42],
runtime/system.scm[13.44], runtime/utabs.scm[13.43]:
Changes to match the rewrite of the variable lookup code in the
microcode and a few minor bug fixes.

* microcode/fhooks.c[9.22], microcode/lookup.h[9.35],
microcode/prim.h[9.35], microcode/trap.h[9.35],
microcode/usrdef.h[9.35]:
Rewrite of the variable lookup code and slight tuning of the interpreter.

* microcode/Attic/config.h[9.23], microcode/bchgcl.c[9.27],
microcode/bchmmg.c[9.27], microcode/bintopsb.c[9.23],
microcode/bkpt.h[9.22], microcode/boot.c[9.29],
microcode/const.h[9.23], microcode/daemon.c[9.23],
microcode/debug.c[9.23], microcode/dump.c[9.22],
microcode/errors.h[9.24], microcode/extern.h[9.23],
microcode/fasdump.c[9.23], microcode/fasl.h[9.23],
microcode/fasload.c[9.23], microcode/findprim.c[9.22],
microcode/fixobj.h[9.24], microcode/gc.h[9.22],
microcode/gccode.h[9.22], microcode/gcloop.c[9.24],
microcode/gctype.c[9.22], microcode/hooks.c[9.22],
microcode/interp.c[9.22], microcode/interp.h[9.22],
microcode/list.c[9.22], microcode/memmag.c[9.27],
microcode/object.h[9.21], microcode/ppband.c[9.24],
microcode/prim.c[9.23], microcode/prims.h[9.21],
microcode/psbtobin.c[9.22], microcode/purify.c[9.25],
microcode/purutl.c[9.27], microcode/scheme.h[9.22],
microcode/scode.h[9.22], microcode/sdata.h[9.22],
microcode/storage.c[9.27], microcode/types.h[9.22],
microcode/utabmd.scm[9.24], microcode/utils.c[9.22],
microcode/version.h[9.35]:
Rewrite of variable lookup code and some tuning of the interpreter.

1987-03-20 Chris Hanson <[email protected]>

* sf/cgen.scm[3.3], sf/copy.scm[3.3], sf/make.scm[3.4],
sf/subst.scm[3.3], sf/xform.scm[3.3]:
Change semantics of procedure's name so that it is not considered to
be a bound variable.

* compiler/machines/bobcat/make.scm-68040[1.12]:
Load `macros' into the correct package.

Implement changes to close mutually-recursive procedures correctly.

* compiler/base/utils.scm[1.82]:
Add some more scode operations.

* compiler/rtlgen/rtlgen.scm[1.7]:
Generate internal definitions differently. Now the procedure keeps
track of mutually-recursive internal definitions, which must have
their closure frames specially constructed in case there are cycles in
the environment/procedure graph.

* compiler/machines/bobcat/lapgen.scm[1.155]:
Add a rule which implements consing of unassigned objects.

* compiler/rtlopt/rcse1.scm[1.100]:
For interpreter calls, all pseudo registers are assumed to be pushed
on the stack, and must therefore contain Scheme objects. When one of
these operations is encountered, invalidate all expressions whose
values are not objects.

* compiler/rtlopt/rcseep.scm[1.2]:
Add `expression-not-object?', which is true of any expression whose
result is not a Scheme object.

1987-03-19 Chris Hanson <[email protected]>

* compiler/base/ctypes.scm[1.42]:
Definitions are side-effects to the variable also.

* compiler/base/ctypes.scm[1.41]:
Keep track of the number of side-effects to a variable. Somehow this
code was lost.

* sf/toplev.scm[3.2]:
Do something reasonable if the externs file does not exist.

* sf/pardec.scm[3.3]:
The `integrate-primitive-procedures' declaration was looking up the
name twice, resulting in a variable whose name was another variable.

* compiler/back/asmmac.scm[1.2], compiler/back/lapgn1.scm[1.26],
compiler/back/regmap.scm[1.87], compiler/back/symtab.scm[1.39],
compiler/back/syntax.scm[1.13], compiler/base/cfg1.scm[1.147],
compiler/base/ctypes.scm[1.40], compiler/base/macros.scm[1.56],
compiler/base/utils.scm[1.81],
compiler/machines/bobcat/assmd.scm[1.29],
compiler/machines/bobcat/coerce.scm[1.7],
compiler/machines/bobcat/insmac.scm[1.118],
compiler/machines/bobcat/instr1.scm[1.60],
compiler/machines/bobcat/instr2.scm[1.9],
compiler/machines/bobcat/instr3.scm[1.9],
compiler/machines/bobcat/lapgen.scm[1.154],
compiler/machines/bobcat/machin.scm[1.44],
compiler/machines/bobcat/make.scm-68040[1.11],
compiler/machines/spectrum/assmd.scm[1.29],
compiler/machines/spectrum/coerce.scm[1.4],
compiler/machines/spectrum/lapgen.scm[1.136],
compiler/machines/spectrum/machin.scm[1.41],
compiler/machines/spectrum/make.scm[1.3],
compiler/rtlgen/rgcomb.scm[1.7], compiler/rtlgen/rtlgen.scm[1.6],
compiler/rtlopt/ralloc.scm[1.10], compiler/rtlopt/rcse1.scm[1.99],
compiler/rtlopt/rlife.scm[1.55]:
Reorganize code for new directory structure. Break some large useful
files into smaller ones that can be compiled. Delete all
`using-syntax' occurrences and `Edwin Variables'.

1987-03-18 Chris Hanson <[email protected]>

* sf/pardec.scm[3.2]:
The info stored in operations is 2-valued and must be separated into
its components before being changed to the external representation.

1987-03-18 Guillermo J. Rozas <[email protected]>

* runtime/gc.scm[13.43]:
Making suspend-world reset! the primitive io system on restart.

* runtime/io.scm[13.44]:
Adding reset! to primitive io for the benefit of disk-restore.

1987-03-17 Chris Hanson <[email protected]>

* runtime/Attic/syntax.scm[13.43], runtime/advice.scm[13.42],
runtime/debug.scm[13.42], runtime/equals.scm[13.42],
runtime/error.scm[13.44], runtime/events.scm[13.42],
runtime/format.scm[13.42], runtime/gcstat.scm[13.42],
runtime/histry.scm[13.43], runtime/input.scm[13.43],
runtime/intrpt.scm[13.43], runtime/lambda.scm[13.42],
runtime/parse.scm[13.42], runtime/pp.scm[13.42],
runtime/scode.scm[13.42], runtime/scomb.scm[13.42],
runtime/system.scm[13.43], runtime/unsyn.scm[13.42],
runtime/unxpth.scm[1.2], runtime/vector.scm[13.42],
runtime/where.scm[13.42]:
Change runtime system so that a lambda's name is not considered a
bound variable. Eliminate all references to `#!false' and `#!true'.
Eliminate `canonicalize-filename-string', since pathname parsing is
now system-dependent. Install new quasiquote expander which does
vectors. Teach `eqv?' to handle null length vectors. Eliminate
`make-package' special form.

1987-03-13 Chris Hanson <[email protected]>

* sf/cgen.scm[3.2], sf/copy.scm[3.2], sf/emodel.scm[3.2],
sf/free.scm[3.2], sf/make.scm[3.3], sf/object.scm[3.1],
sf/pardec.scm[3.1], sf/subst.scm[3.2], sf/tables.scm[3.1],
sf/toplev.scm[3.1], sf/usicon.scm[3.1], sf/xform.scm[3.2]:
Externs files now are dumped in an internal form rather than by
converting them to SCode first. This speeds up the process of
re-interning them.

Also, `sf' now maintains a database which allows the user to
programmatically specify syntax table and global declarations on a
per-filename basis. This is used to eliminate `using-syntax' and
`integrate-external' occurrences in each file.

1987-03-12 Guillermo J. Rozas <[email protected]>

* microcode/fasload.c[9.22], microcode/storage.c[9.26],
microcode/utabmd.scm[9.23], microcode/version.h[9.34]:
Add RELOAD-BAND-NAME.

* microcode/bintopsb.c[9.22], microcode/fasl.h[9.22]:
Remove compatibility with older versions of fasl files.

* runtime/input.scm[13.42]:
Rename read-char-ready? to char-ready? as required by R^3RS.

* runtime/system.scm[13.42]:
Add init file.

* runtime/pathnm.scm[13.42]:
Split pathnm.scm into OS independent and OS dependent part for
portability.

1987-03-11 Guillermo J. Rozas <[email protected]>

* microcode/debug.c[9.22]:
OS_tty_tyi now returns ints.

* microcode/storage.c[9.25]:
Eliminate some fossil primitives from io.c

* microcode/version.h[9.33]:
Update unknown.c, flush fossil io.c and minor OS changes.

1987-03-10 Chris Hanson <[email protected]>

* sf/cgen.scm[3.1], sf/copy.scm[3.1], sf/emodel.scm[3.1],
sf/free.scm[3.1], sf/make.scm[3.2], sf/subst.scm[3.1],
sf/xform.scm[3.1]:
Add integrate-external declaration.

* sf/make.scm[3.1]:
Eliminate references to "beta".

* compiler/base/mvalue.scm[3.0], sf/cgen.scm[3.0], sf/copy.scm[3.0],
sf/emodel.scm[3.0], sf/free.scm[3.0], sf/gconst.scm[3.0],
sf/make.scm[3.0], sf/object.scm[3.0], sf/pardec.scm[3.0],
sf/subst.scm[3.0], sf/tables.scm[3.0], sf/toplev.scm[3.0],
sf/usicon.scm[3.0], sf/usiexp.scm[3.0], sf/xform.scm[3.0]:
*** empty log message ***

1987-03-10 Guillermo J. Rozas <[email protected]>

* microcode/version.h[9.32]:
Changes to unix.c and vms.c

1987-03-09 Chris Hanson <[email protected]>

* microcode/boot.c[9.28]:
Oops... losing typo.

* runtime/utabs.scm[13.42]:
Change to use named slots for microcode-identification table.

* microcode/fixobj.h[9.23], microcode/utabmd.scm[9.22]:
Add new microcode table: Identification_Vector.

* microcode/boot.c[9.27], microcode/version.h[9.30]:
Add new entries to ID vector: OS name and OS variant.

1987-03-09 Guillermo J. Rozas <[email protected]>

* microcode/version.h[9.31]:
Make the microcode work on the Vax.

1987-03-07 Chris Hanson <[email protected]>

* runtime/emacs.scm[13.42]:
When doing (read-char) from the terminal, check for any characters in
the input buffer before asking Emacs to read one.

* microcode/version.h[9.29]:
Fix read-char-ready? for hpux.

1987-02-27 Chris Hanson <[email protected]>

* runtime/Attic/syntax.scm[13.42]:
Change error signalling of declaration processing procedures so that
they can be called from outside of the syntaxer.

1987-02-20 Chris Hanson <[email protected]>

* runtime/unpars.scm[13.42]:
Change SCode variable objects to unparse their name as an object
rather than a symbol, so as to distinguish between uninterned and
interned symbols.

1987-02-15 Chris Hanson <[email protected]>

* runtime/error.scm[13.43], runtime/gc.scm[13.42],
runtime/hash.scm[13.45], runtime/histry.scm[13.42],
runtime/intrpt.scm[13.42], runtime/io.scm[13.43],
runtime/output.scm[13.42], runtime/wind.scm[13.42]:
Change name of `compilable-primitive-functions' and
`compilable-primitive-variables' to be
`integrate-primitive-procedures'.

* compiler/machines/spectrum/make.scm[1.2]:
Upgrade to match new compiler.

* compiler/machines/spectrum/lapgen.scm[1.135]:
Various typos.

1987-02-15 Guillermo J. Rozas <[email protected]>

* microcode/boot.c[9.26], microcode/version.h[9.28]:
Add a -utabmd command line option to Scheme.

1987-02-13 Chris Hanson <[email protected]>

* compiler/machines/spectrum/lapgen.scm[1.134],
compiler/machines/spectrum/machin.scm[1.40]:
Upgrade spectrum back end to reflect changes in compiler since
original implementation.

1987-02-12 Chris Hanson <[email protected]>

* runtime/hash.scm[13.44]:
*** empty log message ***

* runtime/hash.scm[13.43]:
Use `modulo' rather than `remainder' to compute index of bucket in the
hash table. Reorganize code presentation.

* compiler/rtlopt/rcse1.scm[1.98]:
Add new method for `unassigned-test' predicate type.

1987-02-12 Guillermo J. Rozas <[email protected]>

* microcode/bchdmp.c[9.26], microcode/bchgcc.h[9.26],
microcode/bchgcl.c[9.26], microcode/bchmmg.c[9.26],
microcode/bchpur.c[9.26]:
Entry for bchscheme (scheme with garbage collector to disk) added.

1987-02-11 Chris Hanson <[email protected]>

* compiler/rtlgen/rtlgen.scm[1.5]:
Rvalue expander for `access' was unable to expand its environment
component because it needed to know whether the ultimate result was an
SCFG or a PCFG. Reorganized `rvalue->expression' so that this
information was available.

* runtime/list.scm[13.42]:
Move list primitives to `boot.scm' because the compiler can't compile
the `in-package' that used to be in `list.scm' to perform this
function.

Also, change the implementation of a few of the list operations to
make them compile more efficiently (at the expense of space in some
cases).

* runtime/boot.scm[13.42]:
Move list primitives to `boot.scm' because the compiler can't compile
the `in-package' that used to be in `list.scm' to perform this
function.

* microcode/version.h[9.27]:
When sending `apply-closure' message to a `subproblem' receiver, the
receiver was left on the stack. Change so that it is removed instead.

1987-02-11 Guillermo J. Rozas <[email protected]>

* microcode/ppband.c[9.23]:
*** empty log message ***

1987-02-10 Chris Hanson <[email protected]>

* compiler/machines/bobcat/machin.scm[1.43]:
Fix incorrect subproblem receiver size.

1987-02-10 Guillermo J. Rozas <[email protected]>

* microcode/ppband.c[9.22]:
Added an option to print heaps when given the relevant parameters from
the command line.

1987-02-09 Chris Hanson <[email protected]>

* runtime/numpar.scm[13.42]:
Fix bug where radix passed explicitly to `string->number' was ignored.

1987-02-09 Guillermo J. Rozas <[email protected]>

* microcode/purify.c[9.24], microcode/purutl.c[9.26],
microcode/storage.c[9.24], microcode/version.h[9.26]:
Split purify.c into purify.c and purutl.c

1987-02-08 Guillermo J. Rozas <[email protected]>

* microcode/extern.h[9.22], microcode/gcloop.c[9.23],
microcode/memmag.c[9.26], microcode/purify.c[9.23],
microcode/version.h[9.25]:
Redo some extern declarations for new garbage collector.

* microcode/memmag.c[9.25]:
Unnecessary and incorrect reinitialization of Weak_Chain.

1987-02-07 Guillermo J. Rozas <[email protected]>

* microcode/version.h[9.24]:
Various trivial changes for the garbage collector to disk.

* microcode/boot.c[9.25], microcode/errors.h[9.23]:
Add TERM_SIGNAL for unix.c

* microcode/memmag.c[9.24]:
Various changes to accomodate the garbage collector to disk.

* microcode/boot.c[9.24]:
Add Reset_Memory to accomodate the garbage collector to disk.

1987-02-05 Chris Hanson <[email protected]>

* compiler/back/lapgn1.scm[1.25]:
Upgrade spectrum back end to reflect changes in compiler since
original implementation. This found some machine-dependent sections
of the "machine-independent" code.

1987-02-04 Guillermo J. Rozas <[email protected]>

* microcode/version.h[9.23]:
Some BBN changes afer the last merge.

* microcode/Attic/config.h[9.22]:
Remove comments around definition of BELL.

* microcode/const.h[9.22]:
BBN changes after the last merge. Conditionalize STACK_GUARD_SIZE.

* microcode/bitstr.c[9.22], microcode/string.c[9.21]:
Small changes due to "bugs" in the C compiler used by BBN.

1987-02-03 Guillermo J. Rozas <[email protected]>

* microcode/memmag.c[9.23], microcode/storage.c[9.23]:
Some primitives have changed homes.

* microcode/prim.c[9.22]:
gc-type has drifted here.

* microcode/boot.c[9.23]:
Clear_Memory and Setup_Memory have drifted to memmag.c

* microcode/version.h[9.22]:
New version. Memory management redistribution.

* microcode/purify.c[9.22]:
get-next-constant is now in this file. Redistributed.

* microcode/fasdump.c[9.22]:
*** empty log message ***

* microcode/gcloop.c[9.22]:
Redistribution. gcloop now only contains the gcloop procedure.

1987-02-02 Guillermo J. Rozas <[email protected]>

* microcode/boot.c[9.22], microcode/daemon.c[9.22],
microcode/errors.h[9.22], microcode/fixobj.h[9.22],
microcode/storage.c[9.22], microcode/utabmd.scm[9.21],
microcode/utils.c[9.21], microcode/version.h[9.21]:
*** empty log message ***

* runtime/error.scm[13.42], runtime/hash.scm[13.42],
runtime/io.scm[13.42]:
New version. Object hashing and file closing use weak pointers so the
daemons can be written in Scheme and need not look at old space after
a GC.

1987-01-23 Guillermo J. Rozas <[email protected]>

* runtime/Attic/syntax.scm[13.41], runtime/advice.scm[13.41],
runtime/bitstr.scm[13.41], runtime/boot.scm[13.41],
runtime/char.scm[13.41], runtime/datime.scm[13.41],
runtime/debug.scm[13.41], runtime/emacs.scm[13.41],
runtime/equals.scm[13.41], runtime/error.scm[13.41],
runtime/events.scm[13.41], runtime/format.scm[13.41],
runtime/gc.scm[13.41], runtime/gcstat.scm[13.41],
runtime/gensym.scm[13.41], runtime/hash.scm[13.41],
runtime/histry.scm[13.41], runtime/input.scm[13.41],
runtime/intrpt.scm[13.41], runtime/io.scm[13.41],
runtime/lambda.scm[13.41], runtime/list.scm[13.41],
runtime/msort.scm[13.41], runtime/numpar.scm[13.41],
runtime/output.scm[13.41], runtime/parse.scm[13.41],
runtime/pathnm.scm[13.41], runtime/pp.scm[13.41],
runtime/qsort.scm[13.41], runtime/rep.scm[13.41],
runtime/scan.scm[13.41], runtime/scode.scm[13.41],
runtime/scomb.scm[13.41], runtime/sdata.scm[13.41],
runtime/sfile.scm[13.41], runtime/stream.scm[13.41],
runtime/string.scm[13.41], runtime/sysclk.scm[13.41],
runtime/system.scm[13.41], runtime/unpars.scm[13.41],
runtime/unsyn.scm[13.41], runtime/utabs.scm[13.41],
runtime/vector.scm[13.41], runtime/where.scm[13.41],
runtime/wind.scm[13.41]:
*** empty log message ***

1987-01-22 Guillermo J. Rozas <[email protected]>

* microcode/Attic/config.h[9.21], microcode/array.c[9.21],
microcode/array.h[9.21], microcode/bignum.c[9.21],
microcode/bignum.h[9.21], microcode/bintopsb.c[9.21],
microcode/bitstr.c[9.21], microcode/bkpt.c[9.21],
microcode/bkpt.h[9.21], microcode/boot.c[9.21],
microcode/breakup.c[9.21], microcode/const.h[9.21],
microcode/daemon.c[9.21], microcode/debug.c[9.21],
microcode/default.h[9.21], microcode/dmpwrld.c[9.21],
microcode/dump.c[9.21], microcode/errors.h[9.21],
microcode/extern.c[9.21], microcode/extern.h[9.21],
microcode/fasdump.c[9.21], microcode/fasl.h[9.21],
microcode/fasload.c[9.21], microcode/fft.c[9.21],
microcode/fhooks.c[9.21], microcode/findprim.c[9.21],
microcode/fixnum.c[9.21], microcode/fixobj.h[9.21],
microcode/flonum.c[9.21], microcode/future.c[9.21],
microcode/futures.h[9.21], microcode/gc.h[9.21],
microcode/gccode.h[9.21], microcode/gcloop.c[9.21],
microcode/gctype.c[9.21], microcode/generic.c[9.21],
microcode/history.h[9.21], microcode/hooks.c[9.21],
microcode/hunk.c[9.21], microcode/image.c[9.21],
microcode/image.h[9.21], microcode/intercom.c[9.21],
microcode/interp.c[9.21], microcode/interp.h[9.21],
microcode/list.c[9.21], microcode/load.c[9.21],
microcode/locks.h[9.21], microcode/missing.c[9.21],
microcode/mul.c[9.21], microcode/ppband.c[9.21],
microcode/prim.c[9.21], microcode/pruxfs.c[9.21],
microcode/psbmap.h[9.21], microcode/psbtobin.c[9.21],
microcode/purify.c[9.21], microcode/returns.h[9.21],
microcode/sample.c[9.21], microcode/scheme.h[9.21],
microcode/scode.h[9.21], microcode/sdata.h[9.21],
microcode/step.c[9.21], microcode/storage.c[9.21],
microcode/sysprim.c[9.21], microcode/types.h[9.21],
microcode/vector.c[9.21], microcode/winder.h[9.21],
microcode/wsize.c[9.21], microcode/xdebug.c[9.21],
microcode/zones.h[9.21]:
Add RCS headers and update copyright notices.

1987-01-21 Guillermo J. Rozas <[email protected]>

* microcode/Attic/config.h[9.20], microcode/array.c[9.20],
microcode/array.h[9.20], microcode/bignum.c[9.20],
microcode/bignum.h[9.20], microcode/bintopsb.c[9.20],
microcode/bitstr.c[9.20], microcode/bkpt.c[9.20],
microcode/bkpt.h[9.20], microcode/boot.c[9.20],
microcode/breakup.c[9.20], microcode/char.c[9.20],
microcode/const.h[9.20], microcode/daemon.c[9.20],
microcode/debug.c[9.20], microcode/default.h[9.20],
microcode/dmpwrld.c[9.20], microcode/dump.c[9.20],
microcode/errors.h[9.20], microcode/extern.c[9.20],
microcode/extern.h[9.20], microcode/fasdump.c[9.20],
microcode/fasl.h[9.20], microcode/fasload.c[9.20],
microcode/fft.c[9.20], microcode/fhooks.c[9.20],
microcode/findprim.c[9.20], microcode/fixnum.c[9.20],
microcode/fixobj.h[9.20], microcode/flonum.c[9.20],
microcode/future.c[9.20], microcode/futures.h[9.20],
microcode/gc.h[9.20], microcode/gccode.h[9.20],
microcode/gcloop.c[9.20], microcode/gctype.c[9.20],
microcode/generic.c[9.20], microcode/history.h[9.20],
microcode/hooks.c[9.20], microcode/hunk.c[9.20],
microcode/image.c[9.20], microcode/image.h[9.20],
microcode/intercom.c[9.20], microcode/interp.c[9.20],
microcode/interp.h[9.20], microcode/list.c[9.20],
microcode/load.c[9.20], microcode/locks.h[9.20],
microcode/missing.c[9.20], microcode/mul.c[9.20],
microcode/object.h[9.20], microcode/ppband.c[9.20],
microcode/prim.c[9.20], microcode/prims.h[9.20],
microcode/pruxfs.c[9.20], microcode/psbmap.h[9.20],
microcode/psbtobin.c[9.20], microcode/purify.c[9.20],
microcode/returns.h[9.20], microcode/sample.c[9.20],
microcode/scheme.h[9.20], microcode/scode.h[9.20],
microcode/sdata.h[9.20], microcode/stack.h[9.20],
microcode/step.c[9.20], microcode/storage.c[9.20],
microcode/string.c[9.20], microcode/sysprim.c[9.20],
microcode/types.h[9.20], microcode/unexec.c[9.20],
microcode/utabmd.scm[9.20], microcode/utils.c[9.20],
microcode/vector.c[9.20], microcode/version.h[9.20],
microcode/winder.h[9.20], microcode/wsize.c[9.20],
microcode/xdebug.c[9.20], microcode/zones.h[9.20],
runtime/Attic/syntax.scm[13.40], runtime/advice.scm[13.40],
runtime/bitstr.scm[13.40], runtime/boot.scm[13.40],
runtime/char.scm[13.40], runtime/datime.scm[13.40],
runtime/debug.scm[13.40], runtime/emacs.scm[13.40],
runtime/equals.scm[13.40], runtime/error.scm[13.40],
runtime/events.scm[13.40], runtime/format.scm[13.40],
runtime/gc.scm[13.40], runtime/gcstat.scm[13.40],
runtime/gensym.scm[13.40], runtime/hash.scm[13.40],
runtime/histry.scm[13.40], runtime/input.scm[13.40],
runtime/intrpt.scm[13.40], runtime/io.scm[13.40],
runtime/lambda.scm[13.40], runtime/list.scm[13.40],
runtime/msort.scm[13.40], runtime/numpar.scm[13.40],
runtime/output.scm[13.40], runtime/parse.scm[13.40],
runtime/pathnm.scm[13.40], runtime/pp.scm[13.40],
runtime/qsort.scm[13.40], runtime/rep.scm[13.40],
runtime/scan.scm[13.40], runtime/scode.scm[13.40],
runtime/scomb.scm[13.40], runtime/sdata.scm[13.40],
runtime/sfile.scm[13.40], runtime/stream.scm[13.40],
runtime/string.scm[13.40], runtime/sysclk.scm[13.40],
runtime/system.scm[13.40], runtime/unpars.scm[13.40],
runtime/unsyn.scm[13.40], runtime/utabs.scm[13.40],
runtime/vector.scm[13.40], runtime/where.scm[13.40],
runtime/wind.scm[13.40]:
Merge with BBN

1987-01-15 Chris Hanson <[email protected]>

* runtime/debug.scm[1.84]:
`debug' had a hack where it used an uninterned symbol with a null
print name to cause the "procedure name" field of the H command to be
blank. When the printed representation of uninterned symbols changed,
this ceased to work. Fixed by using `*the-non-printing-object*'
instead.

1987-01-13 Chris Hanson <[email protected]>

* microcode/char.c[5.3], microcode/string.c[5.4]:
Change macro `Real_To_Upper' to procedure `char_upcase'; similarly for
`char_downcase'. This fixes a class of problems such as:

(Real_To_Upper (*scan++))

* microcode/utabmd.scm[1.2], runtime/utabs.scm[1.23]:
The microcode tables file now returns an identification string as a
value so that it can be determined what version is loaded.

* microcode/version.h[5.10]:
Remove version number from `UCODE_TABLES_FILENAME', to simplify
distribution. This may cause synchronization problems later!

1987-01-12 Chris Hanson <[email protected]>

* microcode/object.h[5.3], microcode/prims.h[5.2],
microcode/string.c[5.3], microcode/utils.c[5.2]:
Please refer to the ChangeLog file under the following entry for this
log message, which is too long for RCS to handle at present:

Mon Jan 12 17:11:49 1987 Chris Hanson (cph at kleph)

* microcode/char.c[5.2]:
Moby rewrite, which started out as some simple bug fixes.
Interesting points:

* New alternative names for some basic macros:

Type_Code --> pointer_type
Datum --> pointer_datum

* New predicates for certain types:

fixnum_p
character_p
string_p

* `Primitive_Error' and `Primitive_Interrupt' close-coded to save
space. For extra savings, the following new procedures are available
(where N ranges from 1 to 10):

void error_wrong_type_arg_N ()
void error_bad_range_arg_N ()
void error_external_return ()

* M

1987-01-11 Chris Hanson <[email protected]>

* microcode/string.c[5.2], microcode/version.h[5.9]:
Fix `substring-find-next-char-in-set' and
`substring-find-previous-char-in-set', which were losing on characters
with the #x80 bit set in the usual way.

* microcode/version.h[5.8]:
Primitive `file-write-char' was unable to write out the character
#\M-Rubout, because of the standard problem.

1987-01-10 Chris Hanson <[email protected]>

* compiler/machines/bobcat/lapgen.scm[1.153]:
Oops! Forgot to push return address for subproblems.
What a loser.

* compiler/machines/bobcat/lapgen.scm[1.152]:
Finish changes to poppers.

* compiler/machines/bobcat/lapgen.scm[1.151]:
Change type offsets to 16-byte intervals to match new microcode.

1987-01-09 Chris Hanson <[email protected]>

* compiler/machines/bobcat/lapgen.scm[1.150]:
Fix oversight in new popper code.

* compiler/machines/bobcat/lapgen.scm[1.149]:
Fix typo and adjust message receiver type bits to correct values.

* microcode/version.h[5.7]:
*** empty log message ***

* compiler/machines/bobcat/lapgen.scm[1.148]:
Update popper offsets to match new microcode.

* compiler/machines/bobcat/lapgen.scm[1.147]:
Change popper code to interpretive version to prevent screw with 68020
instruction cache.

* compiler/machines/bobcat/machin.scm[1.42]:
Change sizes of message receivers to reflect new interpretive
implementation.

* runtime/unpars.scm[1.69]:
Add special unparsing for pairs.

1987-01-08 Chris Hanson <[email protected]>

* runtime/numpar.scm[1.6]:
Fix bug in parsing of complex polar notation.

1987-01-07 Chris Hanson <[email protected]>

* runtime/numpar.scm[1.5]:
*** empty log message ***

* microcode/interp.c[5.2], microcode/version.h[5.6]:
Define `TC_COMPLEX' to self-evaluate.

* runtime/numpar.scm[1.4], runtime/unpars.scm[1.68]:
Add complex number syntax to reader and printer.

1987-01-06 Chris Hanson <[email protected]>

* microcode/stack.h[5.2]:
Turn off stack overflow interrupt during throw.

1987-01-05 Chris Hanson <[email protected]>

* microcode/version.h[5.5]:
*** empty log message ***

* microcode/const.h[5.2]:
Boost STACK_GUARD_SIZE to value which will allow stack overflow
interrupt to work correctly.

* runtime/gc.scm[1.92]:
Local stack overflow interrupt index incorrect.

* compiler/machines/bobcat/lapgen.scm[1.146]:
Revert previous change since experiment proved that this was
not the source of the bug being tracked down. Leave in the
other bug fix which apparently never was used before.

* compiler/machines/bobcat/lapgen.scm[1.145]:
Try not to generate instructions that depend on the order in
which effective address evaluation occurs.

1987-01-04 Chris Hanson <[email protected]>

* microcode/version.h[5.4]:
*** empty log message ***

1987-01-01 Chris Hanson <[email protected]>

* compiler/base/utils.scm[1.80]:
Eliminate references to `make-primitive-procedure'.

* compiler/rtlgen/rgcomb.scm[1.5], compiler/rtlgen/rtlgen.scm[1.4]:
Pass `rest-generator' as argument to all the generator quanta rather than
fluid-binding it to prevent infinite recursion problem.

* compiler/back/lapgn1.scm[1.24], compiler/base/macros.scm[1.55],
compiler/machines/bobcat/lapgen.scm[1.144],
compiler/rtlgen/rgcomb.scm[1.6]:
*** empty log message ***

1986-12-22 Chris Hanson <[email protected]>

* compiler/base/utils.scm[1.79]:
Change tagged vector object unparser so that the printing of a hash
number for the object can be suppressed. This is useful for writing out
RTL files because it makes it easier to compare before and after changes.

* compiler/rtlgen/rgcomb.scm[1.4]:
Fix bug in value of `number-pushed' being computed for stack calls.

1986-12-21 Chris Hanson <[email protected]>

* compiler/back/lapgn1.scm[1.23], compiler/back/lapgn1.scm[1.22],
compiler/base/cfg1.scm[1.146], compiler/base/cfg1.scm[1.145],
compiler/base/ctypes.scm[1.39], compiler/base/ctypes.scm[1.38],
compiler/base/macros.scm[1.54], compiler/base/utils.scm[1.78],
compiler/machines/bobcat/lapgen.scm[1.143],
compiler/rtlgen/rgcomb.scm[1.3], compiler/rtlgen/rtlgen.scm[1.3],
compiler/rtlgen/rtlgen.scm[1.2], compiler/rtlopt/rcse1.scm[1.97]:
*** empty log message ***

1986-12-20 Chris Hanson <[email protected]>

* compiler/back/lapgn1.scm[1.21], compiler/base/cfg1.scm[1.144],
compiler/machines/bobcat/lapgen.scm[1.142],
compiler/machines/bobcat/make.scm-68040[1.10],
compiler/rtlgen/rgcomb.scm[1.2], compiler/rtlopt/rlife.scm[1.54]:
*** empty log message ***

* compiler/machines/bobcat/instr1.scm[1.59]:
Change obsolete reference to `vector-size'.

* compiler/back/lapgn1.scm[1.20], compiler/base/cfg1.scm[1.143],
compiler/base/ctypes.scm[1.37], compiler/base/macros.scm[1.53],
compiler/base/utils.scm[1.77], compiler/rtlopt/ralloc.scm[1.9],
compiler/rtlopt/rcse1.scm[1.96], compiler/rtlopt/rlife.scm[1.53]:
Redesign of CFG data structures.

* runtime/output.scm[1.33]:
Update to use new primitive `tty-flush-output'.
Requires microcode 9.12 or later.

* microcode/storage.c[5.2], microcode/version.h[5.3]:
Implement new primitive `tty-flush-output'.

1986-12-18 Chris Hanson <[email protected]>

* compiler/machines/bobcat/lapgen.scm[1.141]:
*** empty log message ***

* compiler/rtlopt/rcse1.scm[1.95], compiler/rtlopt/rlife.scm[1.52]:
Fix algorithm so that it handles CFG joins correctly.

* compiler/base/cfg1.scm[1.142]:
Eliminate definitions of `foo-edit!' procedures.
Redesign `node-replace!' procedures.

* compiler/rtlopt/rlife.scm[1.51]:
Change implementation of `rtl-snode-delete!' so that it is more careful
about connecting and disconnecting nodes from one another.

* compiler/back/lapgn1.scm[1.19], compiler/back/regmap.scm[1.86],
compiler/base/utils.scm[1.76]:
Change names of set operations to indicate whether they use `eq?' or
`eqv?' to determine membership. Eliminate multiple copies of various
such operations.

* compiler/base/ctypes.scm[1.36]:
Fix bug in `continuation-entry'.

* compiler/base/cfg1.scm[1.141]:
Delete non-useful frame editor procedures.

1986-12-17 Chris Hanson <[email protected]>

* compiler/base/cfg1.scm[1.140], compiler/base/ctypes.scm[1.35]:
Change call-construction pass so that it uses special frame editing
procedures rather than modifying the CFGs and then attempting to write
them back into their frames. This prevents attempts to relink them
before they have been unlinked from the holding frames.

* microcode/bignum.c[5.3]:
Same random confusion between `=' and `=='! C Sux.

* compiler/base/utils.scm[1.75]:
Move `po' back to `toplev.scm'. Implement `->tagged-vector' and
`tagged-vector?' to aid in building good debugging tools.

* compiler/rtlopt/rcse1.scm[1.94]:
Fix incorrect definition of `define-assignment-method'.

* compiler/base/cfg1.scm[1.139]:
Fix problem in which hooks were getting dis/connected multiple times.
Required changing implementation of `hooks-union'. Also, add error
checking to the dis/connect operations to detect this lossage.

* microcode/Attic/config.h[5.2], microcode/bignum.h[5.3],
microcode/object.h[5.2]:
Changes to make FIXNUM_LENGTH_AS_BIGNUM visible to cpp.

* microcode/bignum.c[5.2], microcode/bignum.h[5.2],
microcode/version.h[5.2]:
Bignum code was not handling most negative fixnum right.
Altering definition of FIXNUM_LENGTH_AS_BIGNUM, plus some
extra care in Big_To_Fix, should solve this.

1986-12-16 Chris Hanson <[email protected]>

* compiler/base/utils.scm[1.74]:
Use user-level hash operators rather than primitives.

* compiler/base/utils.scm[1.73]:
Change `po' to accept a hash number as an argument and print
the unhash of that.

* compiler/base/ctypes.scm[1.34]:
Rewrite side-effecting operations on continuation cfg fields to
perform side-effects on the sframe rather than the continuation.

* compiler/base/cfg1.scm[1.138]:
Implement replacement operations on frames.
Implement SCFG insertion operation.
Implement :DESCRIBE methods for frames and holders.

* runtime/equals.scm[1.10], runtime/list.scm[1.64]:
Convert `or' to `if' where the value is a boolean.

* compiler/back/symtab.scm[1.38]:
Add `using-syntax' to grab compiler syntax.

* compiler/machines/bobcat/lapgen.scm[1.140]:
Fix type-extraction rules to use ROL instruction rather than LSR.

* compiler/base/utils.scm[1.72]:
Fix print wrapper to print hash number correctly.

* compiler/back/symtab.scm[1.37]:
Add new operation to extract the set of undefined names.

* compiler/rtlopt/rcse1.scm[1.93]:
Make sure that the stack pointer gets invalidated whenever it is changed.
Previously it was not explicitly invalidated when a push happened.

* microcode/Attic/config.h[5.1], microcode/array.c[5.1],
microcode/array.h[5.1], microcode/bignum.c[5.1],
microcode/bignum.h[5.1], microcode/bintopsb.c[5.1],
microcode/bitstr.c[5.1], microcode/bkpt.c[5.1],
microcode/bkpt.h[5.1], microcode/boot.c[5.1],
microcode/breakup.c[5.1], microcode/char.c[5.1],
microcode/const.h[5.1], microcode/daemon.c[5.1],
microcode/debug.c[5.1], microcode/default.h[5.1],
microcode/dmpwrld.c[5.1], microcode/dump.c[5.1],
microcode/errors.h[5.1], microcode/extern.c[5.1],
microcode/extern.h[5.1], microcode/fasdump.c[5.1],
microcode/fasl.h[5.1], microcode/fasload.c[5.1],
microcode/fft.c[5.1], microcode/fhooks.c[5.1],
microcode/findprim.c[5.1], microcode/fixnum.c[5.1],
microcode/fixobj.h[5.1], microcode/flonum.c[5.1],
microcode/future.c[5.1], microcode/futures.h[5.1],
microcode/gc.h[5.1], microcode/gccode.h[5.1],
microcode/gcloop.c[5.1], microcode/gctype.c[5.1],
microcode/generic.c[5.1], microcode/history.h[5.1],
microcode/hooks.c[5.1], microcode/hunk.c[5.1],
microcode/image.c[5.1], microcode/image.h[5.1],
microcode/intercom.c[5.1], microcode/interp.c[5.1],
microcode/interp.h[5.1], microcode/list.c[5.1],
microcode/load.c[5.1], microcode/locks.h[5.1],
microcode/missing.c[5.1], microcode/mul.c[5.1],
microcode/object.h[5.1], microcode/ppband.c[5.1],
microcode/prim.c[5.1], microcode/prims.h[5.1],
microcode/pruxfs.c[5.1], microcode/psbmap.h[5.1],
microcode/psbtobin.c[5.1], microcode/purify.c[5.1],
microcode/returns.h[5.1], microcode/sample.c[5.1],
microcode/scheme.h[5.1], microcode/scode.h[5.1],
microcode/sdata.h[5.1], microcode/stack.h[5.1],
microcode/step.c[5.1], microcode/storage.c[5.1],
microcode/string.c[5.1], microcode/sysprim.c[5.1],
microcode/types.h[5.1], microcode/unexec.c[5.1],
microcode/utils.c[5.1], microcode/vector.c[5.1],
microcode/version.h[5.1], microcode/winder.h[5.1],
microcode/wsize.c[5.1], microcode/xdebug.c[5.1],
microcode/zones.h[5.1], runtime/Attic/syntax.scm[1.236],
runtime/lambda.scm[1.50], runtime/list.scm[1.63],
runtime/msort.scm[1.6], runtime/numpar.scm[1.3],
runtime/output.scm[1.32], runtime/parse.scm[1.103],
runtime/pathnm.scm[1.44], runtime/pp.scm[1.188],
runtime/qsort.scm[1.6], runtime/rep.scm[1.363],
runtime/scan.scm[1.15], runtime/scode.scm[1.311],
runtime/scomb.scm[1.38], runtime/sdata.scm[1.31],
runtime/sfile.scm[1.4], runtime/stream.scm[1.53],
runtime/string.scm[1.32], runtime/sysclk.scm[1.5],
runtime/system.scm[1.15], runtime/unpars.scm[1.67],
runtime/unsyn.scm[1.240], runtime/utabs.scm[1.22],
runtime/vector.scm[1.27], runtime/where.scm[1.93],
runtime/wind.scm[1.89]:
initial revision

* runtime/intrpt.scm[1.68], runtime/io.scm[1.36]:
initial

* runtime/input.scm[1.49]:
foo

* runtime/advice.scm[1.83], runtime/bitstr.scm[1.27],
runtime/boot.scm[1.124], runtime/char.scm[1.36],
runtime/datime.scm[1.6], runtime/debug.scm[1.83],
runtime/emacs.scm[1.3], runtime/equals.scm[1.9],
runtime/error.scm[1.164], runtime/events.scm[1.5],
runtime/format.scm[1.31], runtime/gc.scm[1.91],
runtime/gcstat.scm[1.14], runtime/gensym.scm[1.4],
runtime/hash.scm[1.27], runtime/histry.scm[1.69]:
*** empty log message ***

1986-12-15 Chris Hanson <[email protected]>

* compiler/base/utils.scm[1.71]:
Add hash number to printed representation of compiler data structures
to facilitate debugging.

* compiler/back/lapgn1.scm[1.18], compiler/back/regmap.scm[1.85],
compiler/base/cfg1.scm[1.137], compiler/base/ctypes.scm[1.33],
compiler/base/utils.scm[1.70],
compiler/machines/bobcat/lapgen.scm[1.139],
compiler/machines/bobcat/machin.scm[1.41],
compiler/machines/bobcat/make.scm-68040[1.9],
compiler/rtlopt/ralloc.scm[1.8], compiler/rtlopt/rcse1.scm[1.92],
compiler/rtlopt/rlife.scm[1.50]:
*** empty log message ***

1986-12-13 Chris Hanson <[email protected]>

* compiler/machines/bobcat/make.scm-68040[1.8]:
Update to know about RCS header.

* compiler/machines/bobcat/make.scm-68040[1.7]:
Remove version numbers from filenames.

* compiler/back/lapgn1.scm[1.17], compiler/back/regmap.scm[1.84],
compiler/back/symtab.scm[1.36], compiler/back/syntax.scm[1.12],
compiler/base/cfg1.scm[1.136], compiler/base/ctypes.scm[1.32],
compiler/base/macros.scm[1.52], compiler/base/utils.scm[1.69],
compiler/machines/bobcat/assmd.scm[1.28],
compiler/machines/bobcat/coerce.scm[1.6],
compiler/machines/bobcat/insmac.scm[1.117],
compiler/machines/bobcat/instr1.scm[1.58],
compiler/machines/bobcat/instr2.scm[1.8],
compiler/machines/bobcat/instr3.scm[1.8],
compiler/machines/bobcat/lapgen.scm[1.138],
compiler/machines/bobcat/machin.scm[1.40],
compiler/machines/bobcat/make.scm-68040[1.6],
compiler/machines/spectrum/assmd.scm[1.28],
compiler/machines/spectrum/coerce.scm[1.3],
compiler/machines/spectrum/lapgen.scm[1.133],
compiler/machines/spectrum/machin.scm[1.39],
compiler/rtlopt/ralloc.scm[1.7], compiler/rtlopt/rcse1.scm[1.91],
compiler/rtlopt/rlife.scm[1.49]:
*** empty log message ***