; DIRPAT v3.40 Copyright S. Kluger - ESKAY SOFTWARE
; All Rights Reserved
;
; A TurboDOS directory dump/patch utility
;
z80
request timedif
request syslib ;use SYSLIB3 to assemble/link
;
cr equ 0dh
lf equ 0ah
dfcb equ 5ch
dbuf equ 80h ;default dma
;
curdk equ 25 ;return current disk
rrand equ 33 ;read random
wrand equ 34 ;write random
fsize equ 35 ;compute filesize
gtime equ 105 ;get time
parse equ 152 ;parse filename
;
tdos equ 50h ;TD system call entry point
stabo equ 8 ;set abort address
fxmap equ 11 ;fix disk map
vers equ 12 ;version number
flush equ 26 ;flush disk buffers
lockd equ 25 ;lock drive function
fxdir equ 42 ;fix directory
;
; SYSLIB equates
;
extrn f$open,f$close,scanner
extrn print,cin,cout,phl4hc,eval16,eval10
extrn bbline,crlf,bdos,phlfdc,comphd,pa2hc
extrn fname,capin,pstr,condin,initfcb
;
cseg
;
begin: jr ..strt
;
cls: db 1bh,'E',0,0,0,0 ; clear screen
curpos: db 1bh,'F',0,0,0,0 ; cursor pos
xory: db 0 ; 0=xy, nz=yx
coffs: db 32 ; cursor offset
timeon: db 0ffh ; time on/off flag
wyse: db 0 ; delay flag
;
.strt: ld sp,stack
ld c,stabo
ld de,abort
call tdos
ld c,gtime ; get time
ld de,datim
call bdos
call atoh
ld (sttime+6),hl
ld a,(mmm)
call atoh
ld (sttime+3),hl
ld a,(hhh)
call atoh
ld (sttime),hl
ld a,(5ch)
ld (dirfcb),a ; set drive
or a
jr nz,.ncd.
ld c,25
call bdos
inc a
ncd.: add a,40h
ld (cdrv),a
ld (cdrv1),a
rstrt: call clrscr
call print
db 9,9,'+------------------------------------+',cr,lf
db 9,9,'| DIRPAT ver 3.40 01/23/86 (c) ESKAY |',cr,lf
db 9,9,'| TurboDOS directory patch utility |',cr,lf
db 9,9,'+------------------------------------+',cr,lf,lf,0
xor a
ld (frsttm),a
ld (wrtn),a
ld (hash),a
ld (force),a
ld (dfcb),a
ld l,a
ld h,a
ld (curs),hl
ld c,vers
call tdos ;get version number
ld a,c
cp 13h
call z,unrel
bit 7,b
jp z,noprv ;not privileged
call print
db 'Do you wish to lock drive '
cdrv: db 'A: (Y/N) ? [ ]',8,8,0
ld a,1
call bbline
call crlf
ld a,(hl)
cp 'Y'
ld a,0
jr nz,nolock
ld c,curdk
call bdos
ld e,a
ld (curd),a
ld d,-1
ld c,lockd
call tdos ;lock this drive
or a
jp nz,busy
ld a,0ffh
nolock: ld (locked),a
ld de,dirfcb ;open directory file
call f$open
or a
jp nz,direrr
ld c,fsize
call bdos
ld hl,(rec)
ld (tots),hl
call fillbf
ld a,(dbuf+12)
ld (hash),a
ld bc,12*256+18
call gotoxy
call print
'Press RETURN to display directory and begin',0
;
; This is the main command loop
;
cloop: ld hl,(curs) ;get current sector
ld (rec),hl ;stash it away
ld a,(frsttm)
or a
ld a,1
ld (frsttm),a
ld (dcall),a
call nz,dsply
xor a
ld (dcall),a
ld bc,16*256+20
call gotoxy
call print
db 'Command (or ? for help) [ ]',8,8,0
gtcc.: ld bc,16*256+45
call gotoxy
call condin ; see if input
jr nz,.gotc. ; yes, process it
call putt
jr .gtcc.
;
gotc.: cp 'a'
jr c,.nlcs.
and 5fh
nlcs.: call cout
ld hl,fcntbl
ld b,nmbfcn
slfcn: cp (hl)
inc hl
jr z,.gofcn
inc hl
inc hl
djnz .slfcn
cp cr
ld a,7
call nz,cout
jp cloop
;
gofcn: ld a,(hl)
inc hl
ld h,(hl)
ld l,a
jp (hl)
;
fcntbl: db '>'
dw nxtact
db '!'
dw home
db '?'
dw help
db 'Q'
dw quit
db '+'
dw advanc
db '='
dw advanc
db '-'
dw decrem
db 'A'
dw again
db 'D'
dw drives
db 'R'
dw fillb
db 'W'
dw purgbf
db 'G'
dw goto
db 'H'
dw dohash
db 'F'
dw find
db 'L'
dw fasc
db 'E'
dw erasef
db 'U'
dw unera
db 'S'
dw edit
db 'X'
dw hextgl
nmbfcn equ ($-fcntbl)/3
;
find: ld bc,16*256+20
call gotoxy
call print
db ' Enter hex to be found, RET to stop',cr,lf,0
ld de,tmpbf
ld b,0
fhl: call print
db cr,lf,'Hex : ',0
ld a,1
call bbline
or a
jr z,fhd
push de
call eval16
ld a,e
pop de
ld (de),a
inc de
inc b
jr fhl
;
fhd: ld a,b
or a
jp z,cloop
ld (vecl),a
ld hl,tmpbf
ld (vect),hl
jr fntry
;
fasc: ld bc,16*256+20
call gotoxy
call print
db ' Enter filename to be found : ',0
ld a,1
call bbline
or a
jp z,cloop
cp 16
jr nc,fasc
ld de,dfcb ; parse filename
call fname
jr z,fasc
ld a,c ; get user number flag
cp 0ffh
ld a,'?' ; preload false
jr z,..fau. ; skip if no user number
ld a,c ; else get user #
.fau.: ld (de),a ; and store in fcb
ld hl,previ
push de
ld bc,12
ex de,hl
ldir
pop de
.fa: ld (vect),de
ld a,12 ; file name is 12 chars
ld (vecl),a
ld hl,(curs)
ld (temp),hl
xor a
fntry: ld (ascis),a
floop: call fillbf
nofas: ld a,(vecl)
ld c,a
ld hl,dbuf
ld de,(vect)
ld b,127
call scan
jr z,found
ld hl,(curs) ;get current sector
inc hl ;advance to next
ld de,(tots) ;get total sectors
call comphd ;check if we're at the end
jr z,notfd ;not found.
ld (curs),hl
jr floop
;
found: ld a,l
and 7fh
ld (fbyt),a
ld a,1
ld (loctd),a
ld hl,(curs)
jp fillb
;
notfd: call print
db cr,lf,lf
db 9,9,'*** end of file ***',cr,lf,7,0
call delay
ld hl,(temp)
ld (curs),hl
call fillbf
jp cloop
;
scan: ld a,(ascis)
or a
jp nz,scanner
ld hl,dbuf
.sl1: res 7,(hl)
inc l
jr nz,..sl1
ld hl,dbuf
ld de,20h
ld bc,5ch
.sm1: push hl
push bc
.sm2: ld a,(bc)
cp '?'
jr z,..smw
cp (hl)
jr nz,..smn
.smw: inc hl
inc bc
ld a,68h
cp c
jr nz,..sm2
pop bc
pop hl
ret
;
.smn: pop bc
pop hl
add hl,de
ld a,l
or a
jr nz,..sm1
inc a
ret
;
home: ld de,0
jp secok
;
hextgl: ld a,(hexfl)
cpl
ld (hexfl),a
jp cloop
;
; go to specified sector
;
goto: ld bc,23*256+0
call gotoxy
call print
db 'Enter sector number to jump to (in decimal) : ',0
call bbline
or a
jp z,cloop
ld bc,20*256+0
call cleol
ld bc,23*256+0
call cleol
call eval10
ld hl,(tots)
dec hl
call comphd
jr nc,secok
ld bc,20*256+27
call gotoxy
call print
db 'Sector number out of range',7,0
jr goto
;
secok: dec de
ld (curs),de
jp advanc
;
; display current sector
;
dsply: ld a,1
ld (dison),a
call clrscr
call print
9,'Sec [',0
ld hl,(curs)
call prthl
call print
'] Hash=O',0
ld a,(hash)
or a
jr nz,..hs.
call print
'FF',0
jr ..hx.
;
.hs.: call print
'N',0
.hx.: call print
' Size ',0
ld hl,(tots)
call prthl
call print
' sectors ',0
ld a,(wrtn)
or a
ld a,' '
jr z,..nwr.
ld a,'W'
.nwr.: call cout
ld a,(locked)
or a
ld a,' '
jr z,..nlk.
ld a,'L'
.nlk.: call cout
call print
db ' '
cdrv1: db 'A:',0
ld hl,loctd
ld a,(hl)
ld (hl),0
or a
jr z,..nlcd
call print
' Found: byte ',0
ld a,(fbyt)
call pa2hc
push af
and 0fh
ld b,a
pop af
and 0f0h
rra
rra
rra
rra
add a,3
ld h,a
ld c,3
ld a,-3
clh..: add a,c
dec b
jp p,.clh..
add a,6
ld l,a
ld (editpt),hl
ld a,1
ld (dcall),a
call ..nlcd
xor a
ld (dcall),a
jp edlp
;
.nlcd: ld hl,dbuf ;hl=buffer pointer
call print
db cr,lf
db 'ADDR 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F'
db ' 0123456789ABCDEF',cr,lf,0
lp10: call crlf
push hl
res 7,l ;reset bit for display
call phl4hc ;print address
pop hl
call spc
call spc
push hl ;save for ascii display
lpln: ld a,(hl)
call pa2hc
call spc
inc l
ld a,l
and 0fh ;done this line?
jr nz,lpln
call spc
pop hl ;back for ascii
asclp: ld a,(hl)
and 7fh
cp 7fh
jr z,noprc
cp ' '
jr nc,prasc
noprc: ld a,'.'
prasc: call cout
inc l
jr z,ddone
ld a,l
and 0fh
jr z,lp10
jr asclp
;
spc: ld a,' '
jp cout
;
ddone: call crlf
ld a,(dcall)
or a
ret nz
jp cloop
;
decrem: ld hl,(curs) ;get current sector
ld a,h
or l
dec hl
jr nz,nonda ;skip if not at start
ld hl,(tots) ;get total sectors
dec hl ;minus 1 (0..end)
jr nonda
;
advanc: ld hl,(curs) ;get current sector
inc hl ;advance to next
ld de,(tots) ;get total sectors
call comphd ;check if we're at the end
jr nz,nonda ;skip if not at end
wrp..: ld hl,0 ;go to start (wrap around)
nonda: ld (curs),hl ;save new sector
fillb: call fillbf
jp cloop
;
; got to next active dir sector
;
nxtact: ld hl,(curs)
inc hl
ld de,(tots)
call comphd
jr z,.wrp..
ld (curs),hl
call fillbf ;get buffer
ld hl,80h
ld de,20h
ld b,4
.nx..: ld a,(hl)
cp 0e5h
jr nz,fillb
add hl,de
djnz ..nx..
jr nxtact
;
fillbf: ld hl,(curs)
ld (rec),hl
ld c,rrand
rdwr: ld de,dirfcb
call bdos
or a
ret z
call print
db cr,lf,lf,7
db 'Read/write error code ',0
call pa2hc
call print
db '.',cr,lf,'Ignoring error.',cr,lf,0
jp delay
;
purgbf: ld a,(locked)
or a
jr nz,purg1
ld bc,23*256+10
call gotoxy
call print
db 7,'WARNING - DRIVE NOT LOCKED - PROCEED (Y/N) ? ',0
ld a,1
call bbline
ld bc,23*256+0
call cleol
ld a,(hl)
cp 'Y'
jr z,purg1
jp cloop
;
purg1: ld hl,(curs)
ld (rec),hl
ld c,wrand
call rdwr
ld a,1
ld (wrtn),a
jp cloop
;
dohash: ld hl,0
ld (curs),hl
call fillbf
ld bc,23*256+10
call gotoxy
call print
db 'Hash directory after exiting (Y=YES) ? ',0
ld a,1
ld (force),a
call bbline
ld bc,23*256+0
call cleol
ld a,(hl)
cp 'Y'
ld a,80h
jr z,yhash
xor a
yhash: ld (dbuf+0ch),a
ld (hash),a
jp purgbf
;
; delete all directory entries of a file
; (unless already deleted)
; report count
;
erasef: call print
db cr,lf,lf
db 'Enter filename (no user # = all entries,',cr,lf
db 'else only entries in that user) RET=quit : ',0
ld a,0e5h
ld (eracmd),a
ld a,1
call bbline
or a
jp z,cloop
ld (pfcb),hl ;save hl
ld hl,sfcb
ld (pfcb+2),hl
ld c,parse
ld de,pfcb
call bdos
ld a,(sfcb+15)
or a
jr z,nofu
ld a,(sfcb+13)
inc a
nofu: dec a
ld (sfcb),a
inc a
jp nz,noall
call print
db cr,lf
db 'WARNING - you are about to delete ALL those',cr,lf
db 'directory entries. Say "NO" to change your mind : ',0
ld a,1
call bbline
ld a,(hl)
cp 'N'
jp z,cloop
noall: ld hl,0
ld (curs),hl ;set current sector to 0
erasl: call fillbf ;get buffer
ld ix,dbuf ;ix=pointer to buffer
ld de,32 ;de=increment count
ld c,4 ;c=field counter
xor a
ld (noche),a ;set no change erase flag
erasl1: ld hl,sfcb ;hl=fcb ptr
ld b,12 ;b=byte counter
push ix ;move ix...
pop iy ;...to iy
ld a,(hl)
inc a
jr nz,erasl2
inc ix
inc hl
dec b
erasl2: ld a,'?'
cp (hl)
jr z,..qmk
ld a,(ix+0)
and 7fh
cp (hl)
jr nz,eranxt
.qmk: inc ix
inc hl
djnz erasl2
ld a,(eracmd) ; get erase/unerase byte
ld (iy+0),a
ld a,0ffh
ld (noche),a
eranxt: dec c
jr z,eradun
push iy
pop ix
add ix,de
jr erasl1
;
eradun: ld hl,(curs)
ld (rec),hl
ld c,wrand
ld a,(noche)
or a
jr z,nowrt
ld (dcall),a
call dsply
ld a,(eracmd)
cp 0e5h
jr z,..due
call print
cr,lf
'UN-DELETE FILE(S) above? ',0
ld a,1
call bbline
or a
jr z,nowrt
ld a,(hl)
cp 'Y'
jr nz,nowrt
.due: xor a
ld (dcall),a
call rdwr
nowrt: ld a,1
ld (wrtn),a
ld hl,(curs) ;get current sector
inc hl ;advance to next
ld (curs),hl
ld de,(tots) ;get total sectors
call comphd ;check if we're at the end
jp z,cloop
jp erasl
;
unera: ld c,32
ld e,0ffh
call bdos
ld (eracmd),a ; current user #
ld a,(locked)
or a
jr nz,..unel
call print
cr,lf,lf,7
'WARNING: drive is not locked - proceed anyway? ',0
ld a,1
call bbline
or a
jp z,cloop
ld a,(hl)
cp 'Y'
jp nz,cloop
.unel: call print
cr,lf,lf
'File will be undeleted to current user area. NOTE that multiple',cr,lf
'occurrences of the same filename can ALSO be unerased causing',cr,lf
'garbled information.',cr,lf
'Enter name of file to be undeleted (RET=quit) : ',0
ld a,1
call bbline
or a
jp z,cloop
ld (pfcb),hl
ld hl,sfcb
ld (pfcb+2),hl
ld c,parse
ld de,pfcb
call bdos
ld hl,sfcb
ld (hl),65h ; E5 and 7F
inc hl
ld a,'?'
ld b,11
.xxx: cp (hl)
jp nz,noall
inc hl
djnz ..xxx
call print
cr,lf,7
'ERROR: cannot undelete *.*!',cr,lf,0
call delay
jp cloop
;
help: call clrscr
call print
db cr,lf
db 'DIRPAT COMMANDS (single commands only, no stacking) :'
db cr,lf,lf
db '! = HOME (go to sector 0)',cr,lf
db '? = this message',cr,lf
db 'D = change logged drive',cr,lf
db 'E = delete (Erase) all entries of one file',cr,lf
db 'F = find hex data in directory',cr,lf
db 'G = goto record (prompting for decimal number)',cr,lf
db 'H = set hashed status (effective after exit)',cr,lf
db 'L = locate a file name',cr,lf
db 'Q = quit to TurboDOS',cr,lf
db 'R = re-read current record and display',cr,lf
db 'S = substitute onscreen (hex/ASCII edit)',cr,lf
db 'U = UNDELETE a deleted file',cr,lf
db 'W = write current record',cr,lf
db 'X = toggle hex/decimal sector DISPLAY',cr,lf
db '+ = advance pointer to next record and display',cr,lf
db '- = move pointer to previous record and display',cr,lf,lf
db 'Use this program with extreme caution!',cr,lf,lf
db '----> press any key to continue <----',0
call cin
call clrscr
jp cloop
;
prthl: ld a,(hexfl)
or a
jp z,phl4hc
jp phlfdc
;
busy: call print
db cr,lf,lf,7
db 'ERROR - cannot lock drive. Cause all other users to',cr,lf
db 'log off and try again',cr,lf,0
rst 0
;
direrr: call print
db cr,lf,lf,lf
db 'FATAL ERROR - $.DIR NOT FOUND.',cr,lf
db 'Are you not running under TurboDOS?',cr,lf,lf,0
quit: ld de,dirfcb
call f$close
ld a,(wrtn)
or a
jr nz,fixit
jp noth
;
fixit: ld a,(locked)
or a
jr nz,fixok
call print
db cr,lf,lf
db 9,'WARNING - UNABLE TO FIX UNLOCKED DRIVE',cr,lf
db 9,'YOU MUST RUN FIXMAP AND FIXDIR MANUALLY',7,cr,lf,lf,0
jp noth
;
fixok: call print
db cr,lf
db 'Now rebuilding disk map - stand by',0
ld a,(curd) ;get current disk
ld e,a
ld c,fxmap
call tdos
or a
jp nz,nofm ;error...
ld a,(force)
or a
jr nz,forcef
ld a,(hash)
or a
jr z,noth
forcef: call print
db cr,lf
db 'Now reorganizing directory - DO NOT ABORT',cr,lf,lf,0
ld a,(curd)
ld e,a
ld c,fxdir
call tdos
or a
jp nz,nofd
noth: call print
db cr,lf,lf
9,9,' Time spent in DIRPAT: ',0
ld c,gtime
ld de,datim
call bdos
call atoh
ld (entime+6),hl
ld a,(mmm)
call atoh
ld (entime+3),hl
ld a,(hhh)
call atoh
ld (entime),hl
call timdif##
ld hl,elaptm
call pstr
call print
cr,lf,lf
9,' Thanks for using DIRPAT, an ESKAY product',cr,lf,lf,0
ld c,lockd ;unlock drive
ld d,0
ld a,(curd)
ld e,a
call tdos
ld c,flush ;flush buffers
ld a,(curd)
ld e,a
ld d,80h
call tdos
rst 0
;
nofd: call print
db cr,lf,lf,7
db 'ERROR - cannot reorganize directory, aborting',cr,lf,0
rst 0
;
nofm: call print
db cr,lf,lf,7
db 'ERROR - cannot fix disk map, aborting.',cr,lf,0
rst 0
;
noprv: call print
db cr,lf,lf,7
db 'Not authorized to use DIRPAT',cr,lf,0
rst 0
;
unrel: push psw
call print
db cr,lf,7
db 'NOTE: Operation under TurboDOS 1.3 has not been fully',cr,lf
db 'tested. Directory size is reported as 0 and system may',cr,lf
db 'crash on exit. Proceed at your own risk.',cr,lf,lf,0
pop psw
abort: ret
;
delay: push bc
ld a,10
ld bc,0
...d.: dec c
push hl
pop hl
jr nz,....d.
djnz ....d.
dec a
jr nz,....d.
pop bc
ret
;
delay1: ld a,(wyse)
or a
ret z
push bc
ld bc,1000
..d1.: dec c
jr nz,...d1.
djnz ...d1.
pop bc
ret
;
; a to h
;
atoh: push af
ld hl,3030h
and 0fh
or h
ld h,a
pop af
and 0f0h
rra
rra
rra
rra
or l
ld l,a
ret
;
ahlo: call atoh
ld a,l
call cout
ld a,h
jp cout
;
; edit command
;
edit: ld a,(dison)
dec a
jr z,.eact.
ld a,7
call cout
jp cloop
;
eact.: ld bc,3*256+6 ; beginning of field
ld (editpt),bc
edlp: ld bc,(editpt)
call gotoxy
xor a
ld (frsttm),a
call condin
jr nz,.char.
call putt
jr edlp
;
char.: cp 'a'
jr c,..nl..
and 5fh
.nl..: cp 3 ; exit
jp z,cloop
cp 'E'-40h ; ^E = up
jr z,.edup.
cp 'X'-40h ; ^X = down
jr z,.eddn.
cp 'S'-40h ; ^S = left
jr z,.edlf.
cp 'D'-40h ; ^D = right
jr z,.edrt.
cp 27h ; check '
jp z,.edasc ; edit ascii
call nybble ; see if nybble
jp nc,.edda. ;
it is, edit data
ld a,7
call cout
jr edlp
;
edup.: ld a,(editpt+1) ; get row
dec a
cp 2
jr nz,.esnt.
ld a,10 ; set bottom
esnt.: ld (editpt+1),a
jr edlp
;
eddn.: ld a,(editpt+1)
inc a
cp 11
jr nz,.esnt.
ld a,3
jr .esnt.
;
edlf.: ld a,(editpt)
sub 3
cp 3
jr nz,.eslt.
ld a,51
ld (editpt),a
jr .edup.
;
eslt.: ld (editpt),a
jp edlp
;
edrt.: ld a,(editpt)
add a,3
cp 54
jr nz,.eslt.
ld a,6
ld (editpt),a
jr .eddn.
;
edasc: call cin ; get ascii character
call pa2hc
jr ..asci
;
edda.: call hexo ; display high nybble
cp 'A'
jr c,...x
sub 7
..x: and 0fh
rla
rla
rla
rla
ld b,a ; save it
ede..: call capin
call nybble
jr c,.ede..
call hexo
cp 'A'
jr c,...y
sub 7
..y: and 0fh
or b ; a has byte now
.asci: push af
call calcbp ; calculate buffer pointer
pop af
ld (hl),a
ld a,l
and 0fh
add a,55
ld bc,(editpt)
ld c,a
call gotoxy
ld a,(hl)
and 7fh
cp 7fh
jr z,.ed...
cp ' '
jr nc,.edn..
cp 7fh
ed...: ld a,'.'
edn..: call cout
jp .edrt. ; go to next hex on same line
;
; calculate buffer from screen address
;
calcbp: ld hl,(editpt)
ld a,l ; get column
ld b,0
sub 6
div3.: inc b
sub 3
jr nc,.div3.
ld l,b
ld a,h
ld h,0
sub 3
rla
rla
rla
rla
add a,7fh
add a,l
ld l,a
ret
;
; test a if valid nybble
;
nybble: cp '0'
ret c
cp 'F'+1
ccf
ret c
cp '9'+1
ccf
ret nc
sub 7
cp '9'+1
ret
;
; hex out
;
hexo: cp '9'+1
jp c,cout
add a,7
jp cout
;
; position cursor. b=x, c=y
;
gotoxy: push hl
ld hl,curpos
call pstrg
ld a,(xory) ; check xy or yx
or a ; if zero, then xy
jr z,..xy
ld a,b
ld b,c
ld c,a ; exchange b and c
.xy: call delay1
ld a,(coffs) ; get cursor offset
push af ; save for next
add a,b
call cout
call delay1
pop af
add a,c
call cout
pop hl
ret
;
cleol: push hl
call gotoxy
ld b,79
ld a,' '
.ceol: call cout
djnz ..ceol
pop hl
ret
;
clrscr: push hl
ld hl,cls
call pstrg
pop hl
ret
;
pstrg: ld a,(hl)
or a
ret z
call cout
inc hl
jr pstrg
;
putt: ld a,(timeon)
or a
ret z
ld c,gtime
ld de,datim
call bdos
ld b,a
ld a,(lsec)
cp b
ret z
ld a,b
ld (lsec),a
ld bc,16*256+0
call gotoxy
ld a,(hhh)
call ahlo
ld a,':'
call cout
ld a,(mmm)
call ahlo
ld a,':'
call cout
ld a,(lsec)
jp ahlo
;
; select new drive
;
drives: call clrscr
call print
db cr,lf,lf
db 'Enter new drive (A..P, any other = no change) :',0
call capin
cp 'A'
jp c,cloop
cp 'Q'
jp nc,cloop
ld (cdrv),a
ld (cdrv1),a
push af
ld de,dirfcb
call f$close
call initfcb
pop af
sub 40h
ld (dirfcb),a
jp rstrt
;
; find again (repeat "l" command)
;
again: ld hl,previ
ld a,(hl)
inc a
jp z,cloop ; ignore if no previous fn
ex de,hl
jp ..fa
;
dseg
;
editpt: dw 0
;
sttime::db '00:00:00'
entime::db '00:00:00'
elaptm::db '00:00:00',0
dison: db 0
frsttm: db 0
locked: db 0 ;0=drive not locked
noche: db 0 ;no change (erase)
dcall: db 0 ;NZ=dsply called, else JMPed
curs: dw 0 ;current sector
tots: dw 0 ;total number of sectors
eracmd: db 0 ;E5 if erase, user # if unera
temp: dw 0
vect: dw 0
vecl: db 0
ascis: db 0 ;0=ascii search, nz=binary
wrtn: db 0 ;0=no changes made, else changes were made
hash: db 0 ;0=linear, 1=hashed
curd: db 0 ;current drive
lsec: db 0
hexfl: db 0
loctd: db 0
fbyt: db 0
force: db 0 ;force fixdir
dirfcb: db 0,'$ DIR',0
db 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
rec: db 0,0,0
sfcb: ds 36
pfcb: ds 4
tmpbf: ds 64 ;temp buffer space
;
previ: db 0ffh
ds 11
;
datim: dw 0
hhh: db 0
mmm: db 0
;
ds 80
stack equ $
end
