Dream On Associates has recently announced the Type 5
Utility.
A natural extension of Type 3 and Type 4 programs, Type 5
programs are "hyper relocatable", fitting themselves in between
Type 1, 3 and 4 resident code (which may now therefore be
considered obsolete).
Type 5's load into fragmented RAM by scanning the resident
code to determine free memory. A Type 5 file uses TSA "damage
control" code (see below) to compute the CRC of its loaded
fragments and if it is found to be damaged (by program loads
following the original invocation) an attempt is made to reload
into the current environment (after removal of the damaged code).
If this fails, TSA (Top Secret Algorithm) reallocates resident
code to make room for the new request. Eventually, of course,
TSA decides which Type 5 has to go and loads the new Type 5 into
the released RAM.
DRL (Dream On Relocatable) files may be generated with DOA's
Public Domain Hyper Virtual Assembler. TSA.ZRL, TSA.Z80
assembled as a Type 4 program, must be loaded first.
With Type 5, all Type 1-4 code (save TSA.ZRL) may now be
considered obsolete.
For further information, contact DOA directly.
Dream On Associates
545A 14th Street
Ogden, UT 84408
