mirror of
https://github.com/bobbimanners/Applecorn.git
synced 2025-02-21 09:29:02 +00:00
Merged JGH's memory reorganization changes.
This commit is contained in:
Bobbi Webber-Manners
parent
367d50454b
commit
39d6fad471
BIN
applecorn.po
BIN
applecorn.po
Binary file not shown.
20
applecorn.s
20
applecorn.s
@ -40,18 +40,6 @@ A2IRQV EQU $3FE
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MLI EQU $BF00
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* IO Buffer for reading file (1024 bytes)
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*IOBUF0 EQU $4000 ; For loading/saving, OSFILE, *.
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*IOBUF1 EQU $4400 ; Four open files for langs
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*IOBUF2 EQU $4800
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*IOBUF3 EQU $4C00
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*IOBUF4 EQU $5000
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*IOBUF0 EQU $5000 ; For loading/saving, OSFILE, *.
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*IOBUF1 EQU $5400 ; Four open files for langs
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*IOBUF2 EQU $5800
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*IOBUF3 EQU $5C00
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*IOBUF4 EQU $6000
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IOBUF0 EQU $0C00 ; For loading/saving, OSFILE, *.
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IOBUF1 EQU $1000 ; Four open files for langs
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IOBUF2 EQU $1400
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@ -59,11 +47,8 @@ IOBUF3 EQU $1800
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IOBUF4 EQU $1C00
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* 512 byte buffer sufficient for one disk block
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*BLKBUF EQU $5200
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*BLKBUFEND EQU $5400
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BLKBUF EQU $6200 ; Is this ever used at same time
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BLKBUFEND EQU $6400 ; as IOBUF0?
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BLKBUF EQU $5000 ; Can't use $400 as ProDOS uses
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BLKBUFEND EQU $5200 ; 'hidden' bytes within screen
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* Address in aux memory where ROM will be loaded
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AUXADDR EQU $8000
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@ -190,5 +175,6 @@ MAINZP MAC
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PUT AUXMEM.CHARIO
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PUT AUXMEM.MISC
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* Automatically save the object file:
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SAV APPLECORN
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167
auxmem.hostfs.s
167
auxmem.hostfs.s
@ -5,6 +5,8 @@
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* 29-Aug-2021 Generalised CHKERROR routone, checks for and
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* translates ProDOS errors into Acorn errors
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* Set &E0=&FF for testing to report ProDOS errors
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* 30-Aug-2021 FSC commands moved to here
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* Command line set by *RUN, and read by OSARGS
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FSXREG EQU $B0
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@ -13,6 +15,7 @@ FSAREG EQU $B2
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FSCTRL EQU FSXREG
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FSPTR1 EQU $B4
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FSPTR2 EQU $B6
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FSCMDLINE EQU $CE
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* OSFIND - open/close a file for byte access
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@ -100,31 +103,54 @@ OSBGETRET
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* OSARGS - adjust file arguments
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* On entry, A=action
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* Y<>0 A=FF Flush channel Y
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* A=00 Read PTR#Y
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* A=01 Write PTR#Y
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* A=02 Read EXT#Y
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* A=03 Write EXT#Y
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* Y=0 A=FF Flush all channels
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* A=00 Return filing system number in A
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* A=01 Read command line address
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* X=>4 byte ZP control block
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* Y=file handle
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ARGSHND PHA
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PHX
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* On exit, A=0 - implemented (except ARGS 0,0)
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* A - preserved=unimplemented
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* X,Y - preserved
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* control block updated for 'read' calls
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* control block preserved otherwise
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*
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ARGSHND PHX
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PHY
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PHA
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CPY #$00
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BNE :HASFILE
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CMP #$00 ; Y=0,A=0 => current file sys
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BNE :S1
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PLY
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PLX
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PLA
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LDA #105 ; 105=AppleFS filing system
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PLY
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PLX
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RTS
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:S1 CMP #$01 ; Y=0,A=1 => addr of CLI
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BNE :S2
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* TODO: Implement this for *RUN and *command
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JSR BEEP
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BRA :IEXIT
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LDA FSCMDLINE+0
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STA $00,X
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LDA FSCMDLINE+1
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STA $01,X
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LDA #$FF
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STA $02,X
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STA $03,X
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JMP OSARGSDONE ; Implemented
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:S2 CMP #$FF ; Y=0,A=FF => flush all files
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BNE :IEXIT
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>>> WRTMAIN
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STZ MOSFILE ; Zero means flush all
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>>> WRTAUX
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BRA :IFLUSH
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JMP :FLUSH
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:IEXIT JMP :EXIT ; Exit preserved
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:HASFILE >>> WRTMAIN
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STY MOSFILE ; File ref num
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STX MOSFILE+1 ; Pointer to ZP control block
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@ -135,8 +161,7 @@ ARGSHND PHA
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STZ MOSFILE+2 ; 0 means get pos
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>>> WRTAUX
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>>> XF2MAIN,TELL
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:IEXIT BRA :IEXIT2
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:IFLUSH BRA :FLUSH
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:S3 CMP #$01 ; Y!=0,A=1 => write seq ptr
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BNE :S4
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>>> WRTMAIN
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@ -148,25 +173,28 @@ ARGSHND PHA
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STA MOSFILE+4
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>>> WRTAUX
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>>> XF2MAIN,SEEK
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:IEXIT2 BRA :EXIT
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:S4 CMP #$02 ; Y!=0,A=2 => read file len
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BNE :S5
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>>> WRTMAIN
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STA MOSFILE+2 ; Non-zero means get len
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>>> WRTAUX
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>>> XF2MAIN,TELL
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:S5 CMP #$FF ; Y!=0,A=FF => flush file
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BNE :EXIT
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:FLUSH >>> XF2MAIN,FLUSH
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:EXIT PLY
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PLX
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PLA
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RTS
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OSARGSRET
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>>> ENTAUX
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:EXIT PLA ; Unimplemented
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PLY
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PLX
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RTS
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OSARGSRET >>> ENTAUX
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OSARGSDONE PLA
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LDA #0 ; Implemented
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PLY
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PLX
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PLA
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RTS
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@ -245,7 +273,7 @@ FILEHND PHX
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BEQ :LOAD ; A=FF -> LOAD
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CMP #$06
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BEQ :DELETE ; A=06 -> DELETE
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* BCC :INFO ; A=01-05 -> INFO
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BCC :JMPINFO ; A=01-05 -> INFO
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CMP #$08
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BEQ :MKDIR ; A=08 -> MKDIR
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* LDA #<OSFILEM ; If not implemented, print msg
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@ -261,13 +289,13 @@ FILEHND PHX
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PLY
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PLX
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RTS
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:INFO
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* TO DO >>> XF2MAIN,INFOFILE
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:JMPINFO JMP :INFO
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:SAVE >>> XF2MAIN,SAVEFILE
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:LOAD >>> XF2MAIN,LOADFILE
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:DELETE >>> XF2MAIN,DELFILE
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:MKDIR >>> XF2MAIN,MAKEDIR
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:INFO >>> XF2MAIN,INFOFILE
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* On return here, A<$20 return to caller, A>$1F ProDOS error
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OSFILERET
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@ -387,6 +415,37 @@ OSFSCM ASC 'OSFSC.'
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DB $00
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* FSC Command Table
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*******************
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* These are commands specific to the filing system that can't be
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* called via OSFILE, OSFSC, etc.
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*
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FSCCOMMAND ASC 'CHDIR'
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DB $C0
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DW FSCCHDIR-1 ; Change directory, XY=>params
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ASC 'CD'
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DB $C0
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DW FSCCHDIR-1 ; Change directory, XY=>params
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ASC 'DIR'
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DB $C0
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DW FSCCHDIR-1 ; Change directory, XY=>params
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* TO DO, CHDIR should be $80 for LPTR=>params
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ASC 'DRIVE'
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DB $80
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DW FSCDRIVE-1 ; Select drive, LPTR=>params
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ASC 'FREE'
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DB $80
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DW FSCFREE-1 ; FREE (<drive)>, LPTR=>params
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ASC 'ACCESS'
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DB $80
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DW FSCACCESS-1 ; ACCESS <obj> <access), LPTR=>params
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ASC 'TITLE'
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DB $80
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DW FSCTITLE-1 ; TITLE (<drive>) <title>, LPTR=>params
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*
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DB $FF ; Terminator
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* OSFSC - miscellanous file system calls
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*****************************************
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* On entry, A=action, XY=>command line
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@ -397,33 +456,35 @@ OSFSCM ASC 'OSFSC.'
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*
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* TO DO: use jump table
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FSCHND
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CMP #$40
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BEQ FSCCHDIR
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CMP #$41
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BEQ FSCDRIVE
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CMP #$42
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BEQ FSCFREE
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CMP #$43
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BEQ FSCACCESS
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CMP #$42
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BEQ FSCTITLE
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* CMP #$40
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* BEQ FSCCHDIR
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* CMP #$41
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* BEQ FSCDRIVE
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* CMP #$42
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* BEQ FSCFREE
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* CMP #$43
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* BEQ FSCACCESS
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* CMP #$42
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* BEQ FSCTITLE
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CMP #$0C
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BEQ FSCREN ; A=12 - *RENAME
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CMP #$00
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BEQ FSOPT ; A=0 - *OPT
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CMP #$01
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BEQ CHKEOF ; A=1 - Read EOF
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CMP #$02
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BEQ FSCRUN ; A=2 - */filename
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CMP #$03
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BEQ FSC03 ; A=3 - *command
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CMP #$04
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BEQ FSCRUN ; A=4 - *RUN
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CMP #$05
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BEQ FSCCAT ; A=5 - *CAT
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BEQ JMPCAT ; A=5 - *CAT
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CMP #$09
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BEQ FSCCAT ; A=9 - *EX
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BEQ JMPCAT ; A=9 - *EX
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CMP #$0A
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BEQ FSCCAT ; A=10 - *INFO
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BEQ JMPCAT ; A=10 - *INFO
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CMP #$0C
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BEQ FSCREN ; A=12 - *RENAME
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FSCDRIVE
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FSCFREE
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FSCACCESS
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@ -435,8 +496,29 @@ FSCUKN PHA
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PLA
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FSCNULL RTS
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JMPCAT JMP FSCCAT
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FSC03 JSR XYtoLPTR
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LDX #<FSCCOMMAND
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LDY #>FSCCOMMAND
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JSR CLILOOKUP
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BEQ FSCNULL
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JSR LPTRtoXY
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*
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FSCRUN STX OSFILECB ; Pointer to filename
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STY OSFILECB+1
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JSR XYtoLPTR
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FSCRUNLP LDA (OSLPTR),Y ; Look for command line
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INY
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CMP #'!'
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BCS FSCRUNLP
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DEY
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JSR SKIPSPC
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JSR LPTRtoXY
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STX FSCMDLINE+0 ; Set CMDLINE=>command line
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STY FSCMDLINE+1 ; Collected by OSARGS 1,0
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*
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* *BUG* OSFILE &FF should give error if trying to load a directory!
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LDA #$FF ; OSFILE load flag
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STA OSFILECB+6 ; Use file's address
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LDX #<OSFILECB ; Pointer to control block
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@ -445,12 +527,12 @@ FSCRUN STX OSFILECB ; Pointer to filename
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JSR :CALL
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LDA #$00 ; A=0 on return
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RTS
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:CALL JMP (OSFILECB+6) ; Jump to EXEC addr
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RTS
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:CALL LDA #$01 ; A=1 - entering code
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SEC ; Not from RESET
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JMP (OSFILECB+6) ; Jump to EXEC addr
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FSCREN JSR XYtoLPTR ; Pointer to command line
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JSR RENAME
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RTS
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JMP RENAME
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FSCCHDIR STX ZP1+0
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STY ZP1+1
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@ -811,14 +893,15 @@ MKERROR4
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* $55 - Volume Control Block table full.
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* $56 - Bad buffer address.
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* $57 - Duplicate volume.
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* ($58) $27 - I/O error
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* ($59) $28 - No device connected Disk not present
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* ($58) $27 - I/O error (disk not formatted)
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* ($59) $28 - No device connected (drive not present) Disk not present
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* $5A ($29) - Bit map disk address is impossible. Sector not found
|
||||
* $5B $2A -
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* ($5C) $2B - Disk write protected. Disk write protected
|
||||
* $5D ($2C) - (EOF during load or save) Data lost
|
||||
* $5E ($2D) - (Couldn't open to save) Can't save
|
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* ($5F) $2E - Disk switched Disk changed
|
||||
* $2F - Device is offline (drive empty)
|
||||
*
|
||||
|
||||
* AcornOS ProDOS
|
||||
|
||||
158
auxmem.oscli.s
158
auxmem.oscli.s
@ -43,19 +43,20 @@ CMDTABLE ASC 'CAT' ; Must be first command so matches '*.'
|
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ASC 'CDIR'
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DB $88
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DW STARFILE-1 ; CDIR -> OSFILE 08, CBLK=>filename
|
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* other filing commands
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ASC 'CHDIR'
|
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DB $C0
|
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DW STARFSC-1 ; Should be a FSC 3 call, XY=>params
|
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ASC 'CD'
|
||||
DB $C0
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DW STARFSC-1 ; Should be a FSC 3 call, XY=>params
|
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ASC 'DIR'
|
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DB $C0
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DW STARFSC-1 ; Should be a FSC 3 call, XY=>params
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ASC 'DRIVE'
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DB $C1
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DW STARFSC-1 ; Should be a FSC 3 call, XY=>params
|
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* filing-system-specific commands
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||||
* Moved to HostFS
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* ASC 'CHDIR'
|
||||
* DB $C0
|
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* DW STARFSC-1 ; Should be a FSC 3 call, XY=>params
|
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* ASC 'CD'
|
||||
* DB $C0
|
||||
* DW STARFSC-1 ; Should be a FSC 3 call, XY=>params
|
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* ASC 'DIR'
|
||||
* DB $C0
|
||||
* DW STARFSC-1 ; Should be a FSC 3 call, XY=>params
|
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* ASC 'DRIVE'
|
||||
* DB $C1
|
||||
* DW STARFSC-1 ; Should be a FSC 3 call, XY=>params
|
||||
* FREE (<drive>)
|
||||
* ACCESS <file> <access>
|
||||
* TITLE (<drive>) <title>
|
||||
@ -83,7 +84,79 @@ CMDTABLE ASC 'CAT' ; Must be first command so matches '*.'
|
||||
* TYPE <file>
|
||||
* BUILD <file>
|
||||
* terminator
|
||||
DB $00
|
||||
DB $FF
|
||||
|
||||
|
||||
* Command table lookup
|
||||
* On entry, (OSLPTR)=>command string
|
||||
* XY=>command table
|
||||
* On exit, A=0 done, command called
|
||||
* A<>0 no match
|
||||
*
|
||||
* Search command table
|
||||
CLILOOKUP STX OSTEXT+0 ; Start of command table
|
||||
STY OSTEXT+1
|
||||
LDX #0 ; (ZP,X)=>command table
|
||||
CLILP4 LDY #0 ; Start of command line
|
||||
CLILP5 LDA (OSTEXT,X)
|
||||
BMI CLIMATCH ; End of table string
|
||||
EOR (OSLPTR),Y
|
||||
AND #$DF ; Force upper case match
|
||||
BNE CLINOMATCH
|
||||
JSR CLISTEP ; Step to next table char
|
||||
INY ; Step to next command char
|
||||
BNE CLILP5 ; Loop to check
|
||||
|
||||
CLINOMATCH LDA (OSLPTR),Y
|
||||
CMP #'.' ; Abbreviation?
|
||||
BEQ CLIDOT
|
||||
CLINEXT JSR CLISTEP ; No match, step to next entry
|
||||
BPL CLINEXT
|
||||
CLINEXT2 JSR CLISTEP ; Step past byte, address
|
||||
JSR CLISTEP
|
||||
JSR CLISTEP
|
||||
BPL CLILP4 ; Loop to check next
|
||||
RTS ; Exit, A>$7F
|
||||
|
||||
CLIDOT LDA (OSTEXT,X)
|
||||
BMI CLINEXT2 ; Dot after full word, no match
|
||||
CLIDOT2 JSR CLISTEP ; Step to command address
|
||||
BPL CLIDOT2
|
||||
INY ; Step past dot
|
||||
BNE CLIMATCH2 ; Jump to this command
|
||||
|
||||
CLIMATCH LDA (OSLPTR),Y
|
||||
CMP #'.'
|
||||
BEQ CLINEXT ; Longer abbreviation, eg 'CAT.'
|
||||
CMP #'A'
|
||||
BCS CLINEXT ; More letters, eg 'HELPER'
|
||||
CLIMATCH2 JSR CLIMATCH3 ; Call the routine
|
||||
LDA #0
|
||||
RTS ; Return A=0 to claim
|
||||
|
||||
CLIMATCH3 JSR SKIPSPC ; (OSLPTR),Y=>parameters
|
||||
LDA (OSTEXT,X) ; Command byte
|
||||
PHA
|
||||
JSR CLISTEP ; Address low byte
|
||||
STA OSTEMP
|
||||
JSR CLISTEP ; Address high byte
|
||||
PLX ; Get command byte
|
||||
PHA ; Push address high
|
||||
LDA OSTEMP
|
||||
PHA ; Push address low
|
||||
TXA ; Command byte
|
||||
PHA
|
||||
ASL A ; Drop bit 7
|
||||
BEQ CLICALL ; If $80 don't convert LPTR
|
||||
JSR LPTRtoXY ; XY=>parameters
|
||||
CLICALL PLA ; A=command parameter
|
||||
CLIDONE RTS ; Call command routine
|
||||
|
||||
CLISTEP INC OSTEXT+0,X ; Point to next table byte
|
||||
BNE CLISTEP2
|
||||
INC OSTEXT+1,X
|
||||
CLISTEP2 LDA (OSTEXT,X) ; Get next byte
|
||||
RTS
|
||||
|
||||
|
||||
* OSCLI HANDLER
|
||||
@ -113,56 +186,11 @@ CLILP2 LDA (OSLPTR),Y
|
||||
DEY
|
||||
JSR LPTRtoXY ; Add Y to LPTR
|
||||
JSR XYtoLPTR ; LPTR=>start of actual command
|
||||
*
|
||||
* Search command table
|
||||
LDX #0 ; Start of command table
|
||||
CLILP4 LDY #0 ; Start of command line
|
||||
CLILP5 LDA CMDTABLE,X
|
||||
BEQ CLIUNKNOWN ; End of command table
|
||||
BMI CLIMATCH ; End of table string
|
||||
EOR (OSLPTR),Y
|
||||
AND #$DF ; Force upper case match
|
||||
BNE CLINOMATCH
|
||||
INX ; Step to next table char
|
||||
INY ; Step to next command char
|
||||
BNE CLILP5 ; Loop to check
|
||||
|
||||
CLINOMATCH LDA (OSLPTR),Y
|
||||
CMP #'.' ; Abbreviation?
|
||||
BEQ CLIDOT
|
||||
CLINEXT INX ; No match, step to next entry
|
||||
LDA CMDTABLE,X
|
||||
BPL CLINEXT
|
||||
CLINEXT2 INX ; Step past byte, address
|
||||
INX
|
||||
INX
|
||||
BNE CLILP4 ; Loop to check next
|
||||
|
||||
CLIDOT LDA CMDTABLE,X
|
||||
BMI CLINEXT2 ; Dot after full word, no match
|
||||
CLIDOT2 INX ; Step to command address
|
||||
LDA CMDTABLE,X
|
||||
BPL CLIDOT2
|
||||
INY ; Step past dot
|
||||
BNE CLIMATCH2 ; Jump to this command
|
||||
|
||||
CLIMATCH LDA (OSLPTR),Y
|
||||
CMP #'.'
|
||||
BEQ CLINEXT ; Longer abbreviation, eg 'CAT.'
|
||||
CMP #'A'
|
||||
BCS CLINEXT ; More letters, eg 'HELPER'
|
||||
CLIMATCH2 JSR SKIPSPC ; (OSLPTR),Y=>parameters
|
||||
LDA CMDTABLE+2,X ; Push destination address
|
||||
PHA
|
||||
LDA CMDTABLE+1,X
|
||||
PHA
|
||||
LDA CMDTABLE+0,X ; A=command parameter
|
||||
PHA
|
||||
ASL A ; Drop bit 7
|
||||
BEQ CLICALL ; If $80 don't convert LPTR
|
||||
JSR LPTRtoXY ; XY=>parameters
|
||||
CLICALL PLA ; A=command parameter
|
||||
CLIDONE RTS
|
||||
LDX #<CMDTABLE ; XY=>command table
|
||||
LDY #>CMDTABLE
|
||||
JSR CLILOOKUP ; Look for command
|
||||
BNE CLIUNKNOWN ; No match
|
||||
RTS
|
||||
|
||||
CLISLASH JSR SKIPSPC
|
||||
BEQ CLIDONE ; */<cr>
|
||||
@ -347,7 +375,7 @@ STARHELP1 LDX #0
|
||||
JSR OSWRCH
|
||||
STARHELPLP1 LDY #10
|
||||
LDA CMDTABLE,X
|
||||
BEQ STARHELP4
|
||||
BMI STARHELP4
|
||||
STARHELPLP2 LDA CMDTABLE,X
|
||||
BMI STARHELP3
|
||||
JSR OSWRCH
|
||||
|
||||
14
import
Executable file
14
import
Executable file
@ -0,0 +1,14 @@
|
||||
#!/bin/bash
|
||||
|
||||
# For importing JGH's files into Github
|
||||
|
||||
for i in *.s; do
|
||||
fromdos $i
|
||||
sed -i s/^\;/\*/ $i
|
||||
cadius outdentfile $i
|
||||
cadius sethighbit $i
|
||||
mv $i $i#040000
|
||||
cadius deletefile applecorn.po /APPLECORN/$i
|
||||
cadius addfile applecorn.po /APPLECORN $i#040000
|
||||
done
|
||||
|
||||
3
loader.s
3
loader.s
@ -6,8 +6,9 @@
|
||||
* Loads Acorn ROM file (16KB) from disk and writes it
|
||||
* to aux memory starting at $08000. Copies Applecorn MOS
|
||||
* to aux memory starting at AUXMOS1 and jumps to it.
|
||||
* (Note that the MOS code will relocate itself to $D000.)
|
||||
* (Note that the MOS code will copy itself to $D000.)
|
||||
START JSR ROMMENU
|
||||
|
||||
STZ :BLOCKS
|
||||
LDX #$00
|
||||
:S1 JSR CROUT
|
||||
|
||||
260
mainmem.s
260
mainmem.s
@ -9,9 +9,33 @@
|
||||
* 27-Aug-2021 Delete and MkDir return ProDOS result to caller
|
||||
* 29-Aug-2021 All calls (seem to) return ProDOS result to caller
|
||||
* Set ?&E0=255 for testing to report ProDOS result
|
||||
* 30-Aug-2021 INFOFILE semi-implemented, UPDFB returns moddate
|
||||
* Lots of tidying up possible once confirmed code working
|
||||
* *BUG* LOAD loads full 512 bytes from last sector even when < 512
|
||||
|
||||
|
||||
* ProDOS string buffers
|
||||
RTCBUF EQU $0200 ; Use by RTC calls, 40 bytes
|
||||
* ; $0228-$023D
|
||||
DRVBUF1 EQU $023E
|
||||
DRVBUF2 EQU $023F ; Prefix on current drive, len+64
|
||||
CMDPATH EQU $0280 ; Path used to start Applecorn
|
||||
|
||||
* Filename string buffers
|
||||
MOSFILE1 EQU $0300 ; length + 64 bytes
|
||||
MOSFILE2 EQU $0341 ; length + 64 bytes
|
||||
MOSFILE EQU MOSFILE1
|
||||
* $0382 ; $3C bytes here
|
||||
*
|
||||
FILEBLK EQU $03BE
|
||||
FBPTR EQU FILEBLK+0 ; Pointer to name (in aux)
|
||||
FBLOAD EQU FILEBLK+2 ; Load address
|
||||
FBEXEC EQU FILEBLK+6 ; Exec address
|
||||
FBSIZE EQU FILEBLK+10 ; Size
|
||||
FBSTRT EQU FILEBLK+10 ; Start address for SAVE
|
||||
FBATTR EQU FILEBLK+14 ; Attributes
|
||||
FBEND EQU FILEBLK+14 ; End address for SAVE
|
||||
|
||||
* ProDOS MLI command numbers
|
||||
QUITCMD EQU $65
|
||||
GTIMECMD EQU $82
|
||||
@ -49,20 +73,20 @@ SETPRFX LDA #GPFXCMD
|
||||
:L1 JSR MLI
|
||||
:OPC7 DB $00
|
||||
DW GSPFXPL
|
||||
LDX $0300
|
||||
LDX DRVBUF1 ; was $0300
|
||||
BNE RTSINST
|
||||
LDA $BF30
|
||||
STA ONLNPL+1 ; Device number
|
||||
JSR MLI
|
||||
DB ONLNCMD
|
||||
DW ONLNPL
|
||||
LDA $0301
|
||||
LDA DRVBUF2 ; was $0301
|
||||
AND #$0F
|
||||
TAX
|
||||
INX
|
||||
STX $0300
|
||||
STX DRVBUF1 ; was $0300
|
||||
LDA #$2F
|
||||
STA $0301
|
||||
STA DRVBUF2 ; was $0301
|
||||
DEC :OPC7
|
||||
BNE :L1
|
||||
RTSINST RTS
|
||||
@ -88,16 +112,16 @@ DISCONN LDA $BF98
|
||||
BPL :L1
|
||||
BMI :S1
|
||||
:S3 LDA $BF32,Y
|
||||
STA $0302
|
||||
STA DRVBUF2+1 ; was $0302
|
||||
:L2 LDA $BF33,Y
|
||||
STA $BF32,Y
|
||||
BEQ :S4
|
||||
INY
|
||||
BNE :L2
|
||||
:S4 LDA $BF26
|
||||
STA $0300
|
||||
STA DRVBUF1 ; was $0300
|
||||
LDA $BF27
|
||||
STA $0301
|
||||
STA DRVBUF2 ; was $0301
|
||||
LDA $BF10
|
||||
STA $BF26
|
||||
LDA $BF11
|
||||
@ -147,11 +171,24 @@ COPYAUXBLK
|
||||
CLI
|
||||
RTS
|
||||
|
||||
* TO DO: All OSFILE calls combined and dispatch in here
|
||||
* All start with PREPATH, UPDFB, COPYFB then branch
|
||||
* to relevent routine.
|
||||
|
||||
|
||||
INFOFILE >>> ENTMAIN
|
||||
* TO DO: call PREPATH to check for drive, up, etc
|
||||
JSR UPDFB ; Update FILEBLK
|
||||
JSR COPYFB ; Copy back to aux mem
|
||||
>>> XF2AUX,OSFILERET
|
||||
|
||||
|
||||
* ProDOS file handling to delete a file
|
||||
* Called by AppleMOS OSFILE
|
||||
* Return A=0 no object, A=1 file deleted, A=2 dir deleted
|
||||
* A>$1F ProDOS error
|
||||
DELFILE >>> ENTMAIN
|
||||
* TO DO: call PREPATH to check for drive, up, etc
|
||||
JSR UPDFB ; Update FILEBLK
|
||||
JSR COPYFB ; Copy back to aux mem
|
||||
PHA ; Save object type
|
||||
@ -190,23 +227,26 @@ DESTROY LDA #<MOSFILE ; Attempt to destroy file
|
||||
* Return A=02 on success (ie: 'directory')
|
||||
* A>$1F ProDOS error, translated by OSFILE handler
|
||||
MAKEDIR >>> ENTMAIN
|
||||
* TO DO: call PREPATH to check for drive, up, etc
|
||||
JSR UPDFB ; Update FILEBLK
|
||||
JSR COPYFB ; Copy back to aux mem
|
||||
CMP #$02
|
||||
BEQ :EXIT ; Dir already exists
|
||||
* Make into a subroutine
|
||||
LDA #$0D ; 'Directory'
|
||||
STA CREATEPL+7 ; ->Storage type
|
||||
LDA #$0F ; 'Directory'
|
||||
STA CREATEPL+4 ; ->File type
|
||||
* subroutine....
|
||||
LDA #<MOSFILE
|
||||
STA CREATEPL+1
|
||||
LDA #>MOSFILE
|
||||
STA CREATEPL+2
|
||||
LDA #$C3 ; 'Default access'
|
||||
STA CREATEPL+3 ; ->Access
|
||||
LDA #$0F ; 'Directory'
|
||||
STA CREATEPL+4 ; ->File type
|
||||
STZ CREATEPL+5 ; Aux type LSB
|
||||
STZ CREATEPL+6 ; Aux type MSB
|
||||
LDA #$0D ; 'Directory'
|
||||
STA CREATEPL+7 ; ->Storage type
|
||||
* Don't we have to make a call to update BF90-BF93?
|
||||
LDA $BF90 ; Current date
|
||||
STA CREATEPL+8
|
||||
LDA $BF91
|
||||
@ -216,6 +256,7 @@ MAKEDIR >>> ENTMAIN
|
||||
LDA $BF93
|
||||
STA CREATEPL+11
|
||||
JSR CRTFILE
|
||||
* ...
|
||||
BCS :EXIT ; Failed, exit with ProDOS result
|
||||
JSR UPDFB ; Update FILEBLK
|
||||
JSR COPYFB ; Copy FILEBLK to aux mem
|
||||
@ -245,10 +286,15 @@ DORENAME LDA #<MOSFILE
|
||||
OFILE >>> ENTMAIN
|
||||
PHA ; Preserve arg for later
|
||||
* TO DO: Mustn't write to a directory
|
||||
* TO DO: call PREPATH to check for drive, up, etc
|
||||
CMP #$80 ; Write mode
|
||||
BNE :S0
|
||||
JSR DESTROY
|
||||
* Make into a subroutine
|
||||
LDA #$01 ; Storage type - file
|
||||
STA CREATEPL+7
|
||||
LDA #$06 ; Filetype BIN
|
||||
STA CREATEPL+4
|
||||
LDA #<MOSFILE ; Attempt to create file
|
||||
STA CREATEPL+1
|
||||
STA OPENPL+1
|
||||
@ -257,14 +303,10 @@ OFILE >>> ENTMAIN
|
||||
STA OPENPL+2
|
||||
LDA #$C3 ; Access unlocked
|
||||
STA CREATEPL+3
|
||||
LDA #$06 ; Filetype BIN
|
||||
STA CREATEPL+4
|
||||
LDA #$00 ; Auxtype
|
||||
STA CREATEPL+5
|
||||
LDA #$00
|
||||
STA CREATEPL+6
|
||||
LDA #$01 ; Storage type - file
|
||||
STA CREATEPL+7
|
||||
LDA $BF90 ; Current date
|
||||
STA CREATEPL+8
|
||||
LDA $BF91
|
||||
@ -274,7 +316,7 @@ OFILE >>> ENTMAIN
|
||||
LDA $BF93
|
||||
STA CREATEPL+11
|
||||
JSR CRTFILE
|
||||
|
||||
* ...
|
||||
:S0 LDA #$00 ; Look for empty slot
|
||||
JSR FINDBUF
|
||||
STX BUFIDX
|
||||
@ -474,12 +516,14 @@ TELL >>> ENTMAIN
|
||||
>>> MAINZP ; Alt ZP off, ROM back in
|
||||
BRA :EXIT
|
||||
|
||||
|
||||
* ProDOS file handling for MOS OSFILE LOAD call
|
||||
* Invoked by AppleMOS OSFILE
|
||||
* Return A=01 if successful (meaning 'file')
|
||||
* A>$1F ProDOS error, translated by FILERET
|
||||
* TO DO: If object not a file, return $46 - File not found
|
||||
LOADFILE >>> ENTMAIN
|
||||
* TO DO: call PREPATH to check for drive, up, etc
|
||||
STZ :BLOCKS
|
||||
LDA #<MOSFILE
|
||||
STA OPENPL+1
|
||||
@ -530,6 +574,8 @@ LOADFILE >>> ENTMAIN
|
||||
INC
|
||||
DEX
|
||||
BRA :L2
|
||||
* *BUG* This is copy all 512 bytes of last block instead of
|
||||
* just the bytes used
|
||||
:S2 STA A4H
|
||||
SEC ; Main -> AUX
|
||||
JSR AUXMOVE
|
||||
@ -574,6 +620,7 @@ COPYFB PHA
|
||||
* A>$1F ProDOS error translated by FILERET
|
||||
* TO DO: If dir exists, return $41
|
||||
SAVEFILE >>> ENTMAIN
|
||||
* TO DO: call PREPATH to check for drive, up, etc
|
||||
* TO DO: MUSTN'T OVERWITE A DIRECTORY
|
||||
LDA #<MOSFILE ; Attempt to destroy file
|
||||
STA DESTPL+1
|
||||
@ -584,6 +631,11 @@ SAVEFILE >>> ENTMAIN
|
||||
DW DESTPL
|
||||
STZ :BLOCKS
|
||||
* TO DO: Make this a subroutine
|
||||
LDA #$01 ; Storage type - file
|
||||
STA CREATEPL+7
|
||||
LDA #$06 ; Filetype BIN
|
||||
STA CREATEPL+4
|
||||
* subroutine....
|
||||
LDA #<MOSFILE
|
||||
STA CREATEPL+1
|
||||
STA OPENPL+1
|
||||
@ -592,14 +644,10 @@ SAVEFILE >>> ENTMAIN
|
||||
STA OPENPL+2
|
||||
LDA #$C3 ; Access unlocked
|
||||
STA CREATEPL+3
|
||||
LDA #$06 ; Filetype BIN
|
||||
STA CREATEPL+4
|
||||
LDA FBLOAD ; Auxtype = load address
|
||||
STA CREATEPL+5
|
||||
LDA FBLOAD+1
|
||||
STA CREATEPL+6
|
||||
LDA #$01 ; Storage type - file
|
||||
STA CREATEPL+7
|
||||
LDA $BF90 ; Current date
|
||||
STA CREATEPL+8
|
||||
LDA $BF91
|
||||
@ -609,6 +657,7 @@ SAVEFILE >>> ENTMAIN
|
||||
LDA $BF93
|
||||
STA CREATEPL+11
|
||||
JSR CRTFILE
|
||||
* ...
|
||||
BCS :FWD1 ; :CANTOPEN error
|
||||
JSR OPENFILE
|
||||
BCS :FWD1 ; :CANTOPEN error
|
||||
@ -728,8 +777,10 @@ UPDFB LDA #<MOSFILE
|
||||
JSR MLI ; Call GET_FILE_INFO
|
||||
DB GINFOCMD
|
||||
DW GINFOPL
|
||||
BCS :ERR
|
||||
LDA GINFOPL+5 ; Aux type LSB
|
||||
BCC :UPDFB1
|
||||
JMP CHKNOTFND
|
||||
|
||||
:UPDFB1 LDA GINFOPL+5 ; Aux type LSB
|
||||
STA FBLOAD
|
||||
STA FBEXEC
|
||||
LDA GINFOPL+6 ; Aux type MSB
|
||||
@ -739,6 +790,7 @@ UPDFB LDA #<MOSFILE
|
||||
STZ FBEXEC+2
|
||||
STZ FBLOAD+3
|
||||
STZ FBEXEC+3
|
||||
*
|
||||
LDA GINFOPL+3 ; Access byte
|
||||
CMP #$40 ; Locked?
|
||||
AND #$03 ; ------wr
|
||||
@ -753,8 +805,37 @@ UPDFB LDA #<MOSFILE
|
||||
ORA #$08 ; --wrl---
|
||||
:UPDFB2 ORA FBATTR+0 ; --wrl-wr
|
||||
STA FBATTR+0
|
||||
STZ FBATTR+1 ; TO DO: get mdate
|
||||
STZ FBATTR+2
|
||||
*
|
||||
LDA GINFOPL+11 ; yyyyyyym
|
||||
PHA
|
||||
ROR A ; ?yyyyyyy m
|
||||
LDA GINFOPL+10 ; mmmddddd m
|
||||
PHA
|
||||
ROR A ; mmmmdddd
|
||||
LSR A ; -mmmmddd
|
||||
LSR A ; --mmmmdd
|
||||
LSR A ; ---mmmmd
|
||||
LSR A ; ----mmmm
|
||||
STA FBATTR+2
|
||||
PLA ; mmmddddd
|
||||
AND #31 ; ---ddddd
|
||||
STA FBATTR+1
|
||||
PLA ; yyyyyyym
|
||||
SEC
|
||||
SBC #81*2 ; Offset from 1981
|
||||
BCS :UPDFB3 ; 1981-1999 -> 00-18
|
||||
ADC #100*2 ; 2000-2080 -> 19-99
|
||||
:UPDFB3 PHA ; yyyyyyym
|
||||
AND #$E0 ; yyy-----
|
||||
ORA FBATTR+1 ; yyyddddd
|
||||
STA FBATTR+1
|
||||
PLA ; yyyyyyym
|
||||
AND #$FE ; yyyyyyy0
|
||||
ASL A ; yyyyyy00
|
||||
ASL A ; yyyyy000
|
||||
ASL A ; yyyy0000
|
||||
ORA FBATTR+2 ; yyyymmmm
|
||||
STA FBATTR+2
|
||||
STZ FBATTR+3
|
||||
|
||||
JSR OPENFILE ; Open file
|
||||
@ -777,9 +858,9 @@ UPDFB LDA #<MOSFILE
|
||||
LDA #$01 ; Prepare A=file
|
||||
LDX GINFOPL+7
|
||||
CPX #$0D ; Is it a directory?
|
||||
BNE :UPDFB3
|
||||
BNE :UPDFB5
|
||||
LDA #$02 ; Return A=directory
|
||||
:UPDFB3 RTS
|
||||
:UPDFB5 RTS
|
||||
|
||||
:ERR
|
||||
CHKNOTFND CMP #$44 ; Convert ProDOS 'not found'
|
||||
@ -838,35 +919,7 @@ CATALOGRET
|
||||
* dir/file.ext filesystem, so '..' means parent dir (eg: '../SOMEDIR')
|
||||
* Also allows '^' as '^' is illegal character
|
||||
* Carry set on error, clear otherwise
|
||||
* TO DO: drv: prefix, drv:/dir/file
|
||||
PREPATH LDX MOSFILE ; Length
|
||||
BEQ :EXIT ; If zero length
|
||||
LDA MOSFILE+1 ; 1st char of filename
|
||||
CMP #$3A ; Is it ':'?
|
||||
BNE :NOTCLN ; Nope
|
||||
CPX #$03 ; Len at least 3?
|
||||
BCC :ERR ; Nope!
|
||||
LDA MOSFILE+3 ; Drive
|
||||
SEC
|
||||
SBC #'1'
|
||||
TAX
|
||||
LDA MOSFILE+2 ; Slot
|
||||
SEC
|
||||
SBC #'0'
|
||||
JSR DRV2PFX ; Slt/Drv->pfx in MOSFILE2
|
||||
JSR DEL1CHAR ; Delete ':' from MOSFILE
|
||||
JSR DEL1CHAR ; Delete the two digits
|
||||
JSR DEL1CHAR
|
||||
LDA MOSFILE ; Is there more?
|
||||
BEQ :APPEND ; Only ':sd'
|
||||
CMP #$02 ; Len at least 2?
|
||||
BCC :ERR ; Nope!
|
||||
LDA MOSFILE+1 ; 1st char of filename
|
||||
CMP #$2F ; '/'
|
||||
BNE :ERR
|
||||
JSR DEL1CHAR ; Delete '/' from MOSFILE
|
||||
BRA :APPEND
|
||||
:NOTCLN JSR GETPREF ; Current pfx -> MOSFILE2
|
||||
PREPATH JSR GETPREF ; Current pfx -> MOSFILE2
|
||||
:REENTER LDA MOSFILE+1 ; First char of dirname
|
||||
CMP #'.'
|
||||
BEQ :UPDIR1
|
||||
@ -874,7 +927,7 @@ PREPATH LDX MOSFILE ; Length
|
||||
BEQ :CARET ; If '^'
|
||||
CMP #$2F ; '/' char - abs path
|
||||
BEQ :EXIT ; Nothing to do
|
||||
BRA :APPEND
|
||||
BRA :PARENT
|
||||
|
||||
:UPDIR1 LDA MOSFILE+2
|
||||
CMP #'.' ; '..'
|
||||
@ -883,7 +936,7 @@ PREPATH LDX MOSFILE ; Length
|
||||
:CARET JSR DEL1CHAR ; Delete '^' from MOSFILE
|
||||
JSR PARENT ; Parent dir -> MOSFILE2
|
||||
LDA MOSFILE ; Is there more?
|
||||
BEQ :APPEND ; Only '^'
|
||||
BEQ :PARENT ; Only '^'
|
||||
CMP #$02 ; Len at least two?
|
||||
BCC :ERR ; Nope!
|
||||
LDA MOSFILE+1 ; What is next char?
|
||||
@ -891,7 +944,7 @@ PREPATH LDX MOSFILE ; Length
|
||||
BNE :ERR ; Nope!
|
||||
JSR DEL1CHAR ; Delete '/' from MOSFILE
|
||||
BRA :REENTER ; Go again!
|
||||
:APPEND JSR APPMF2 ; Append MOSFILE->MOSFILE2
|
||||
:PARENT JSR APPMF2 ; Append MOSFILE->MOSFILE2
|
||||
JSR COPYMF2 ; Copy back to MOSFILE
|
||||
:EXIT CLC
|
||||
RTS
|
||||
@ -966,34 +1019,39 @@ PARENT LDX MOSFILE2 ; Length of string
|
||||
|
||||
* Convert slot/drive to prefix
|
||||
* Expect slot number (1..7) in A, drive (0..1) in X
|
||||
* Puts prefix (or empty string) in MOSFILE2
|
||||
DRV2PFX ASL
|
||||
ASL
|
||||
ASL
|
||||
ASL
|
||||
CPX #$00
|
||||
BEQ :S1 ; Drive 1
|
||||
ORA #$80 ; Drive 2
|
||||
:S1 STA ONLNPL+1 ; Device number
|
||||
* Puts prefix (or empty string) in MOSFILE
|
||||
DRV2PFX
|
||||
* ASL
|
||||
* ASL
|
||||
* ASL
|
||||
* ASL
|
||||
* STX :TEMP ; Gets 0SSS000D
|
||||
* ORA :TEMP ; Shouldn't this be DSSS00000 ?
|
||||
|
||||
CLC ; Cy=0 A=00000sss
|
||||
ROR A ; s 000000ss
|
||||
ROR A ; s s000000s
|
||||
ROR A ; s ss000000
|
||||
ROR A ; s sss00000
|
||||
CPX #1 ; d sss00000
|
||||
ROR A ; 0 dsss0000
|
||||
|
||||
STA ONLNPL+1 ; Device number
|
||||
JSR MLI ; Call ON_LINE
|
||||
DB ONLNCMD
|
||||
DW ONLNPL ; Buffer set to $301
|
||||
LDA $301 ; Slot/Drive/Length
|
||||
DW ONLNPL ; Buffer set to DRVBUF2 (was $301)
|
||||
LDA DRVBUF2 ; was $301 ; Slot/Drive/Length
|
||||
AND #$0F ; Mask to get length
|
||||
STA MOSFILE ; Store length
|
||||
TAX
|
||||
INC ; Plus '/' at each end
|
||||
INC
|
||||
STA MOSFILE2 ; Store length
|
||||
LDA #$2F ; '/'
|
||||
STA MOSFILE2+1
|
||||
STA MOSFILE2+2,X
|
||||
:L1 CPX #$00 ; Copy -> MOSFILE2
|
||||
:L1 CPX #$00 ; Copy -> MOSFILE
|
||||
BEQ :EXIT
|
||||
LDA $301,X
|
||||
STA MOSFILE2+1,X
|
||||
DEX
|
||||
LDA DRVBUF2,X ; was $301,X
|
||||
STA MOSFILE,X ; Should be able to read
|
||||
DEX ; directly to MOSFILE
|
||||
BRA :L1
|
||||
:EXIT RTS
|
||||
* :TEMP DB $00
|
||||
|
||||
* Delete first char of MOSFILE
|
||||
DEL1CHAR LDX MOSFILE ; Length
|
||||
@ -1088,10 +1146,10 @@ FLSHPL HEX 01 ; Number of parameters
|
||||
|
||||
ONLNPL HEX 02 ; Number of parameters
|
||||
DB $00 ; Unit num
|
||||
DW $301 ; Buffer
|
||||
DW DRVBUF2 ; was $301 ; Buffer
|
||||
|
||||
GSPFXPL HEX 01 ; Number of parameters
|
||||
DW $300 ; Buffer
|
||||
DW DRVBUF1 ; was $300 ; Buffer
|
||||
|
||||
GPFXPL HEX 01 ; Number of parameters
|
||||
DW MOSFILE2 ; Buffer
|
||||
@ -1129,25 +1187,25 @@ QUITPL HEX 04 ; Number of parameters
|
||||
DB $00
|
||||
DW $0000
|
||||
|
||||
* Buffer for Acorn MOS filename
|
||||
* Pascal string
|
||||
MOSFILE DS 65 ; 64 bytes max prefix/file len
|
||||
** Buffer for Acorn MOS filename
|
||||
** Pascal string
|
||||
*MOSFILE DS 65 ; 64 bytes max prefix/file len
|
||||
*
|
||||
** Buffer for second filename (for rename)
|
||||
** Pascal string
|
||||
*MOSFILE2 DS 65 ; 64 bytes max prefix/file len
|
||||
|
||||
* Buffer for second filename (for rename)
|
||||
* Pascal string
|
||||
MOSFILE2 DS 65 ; 64 bytes max prefix/file len
|
||||
|
||||
* Acorn MOS format OSFILE param list
|
||||
FILEBLK
|
||||
FBPTR DW $0000 ; Pointer to name (in aux)
|
||||
FBLOAD DW $0000 ; Load address
|
||||
DW $0000
|
||||
FBEXEC DW $0000 ; Exec address
|
||||
DW $0000
|
||||
FBSIZE
|
||||
FBSTRT DW $0000 ; Size / Start address for SAVE
|
||||
DW $0000
|
||||
FBATTR
|
||||
FBEND DW $0000 ; Attributes / End address for SAVE
|
||||
DW $0000
|
||||
** Acorn MOS format OSFILE param list
|
||||
*FILEBLK
|
||||
*FBPTR DW $0000 ; Pointer to name (in aux)
|
||||
*FBLOAD DW $0000 ; Load address
|
||||
* DW $0000
|
||||
*FBEXEC DW $0000 ; Exec address
|
||||
* DW $0000
|
||||
*FBSIZE
|
||||
*FBSTRT DW $0000 ; Size / Start address for SAVE
|
||||
* DW $0000
|
||||
*FBATTR
|
||||
*FBEND DW $0000 ; Attributes / End address for SAVE
|
||||
* DW $0000
|
||||
|
||||
|
||||
66
memmap.txt
Normal file
66
memmap.txt
Normal file
@ -0,0 +1,66 @@
|
||||
* Memory layout in main memory
|
||||
*
|
||||
* ; $0000-$00FF Zero page
|
||||
* ; $0100-$01FF Stack
|
||||
* ; $0200-$02FF ProDOS string buffers
|
||||
* ; $0200-$022F Overwritten by RTC routines
|
||||
* ; $0228-$023D
|
||||
DRVBUF1 EQU $023E ; $023E Drive
|
||||
DRVBUF2 EQU $023F ; $022F Prefix on current drive
|
||||
CMDPATH EQU $0280 ; $0280 Path used to start Applecorn
|
||||
*
|
||||
* ; $0300-$03CF File system core workspace
|
||||
* ; $0300-$0382 Filename string buffers
|
||||
MOSFILE1 EQU $0300 ; $0300 length
|
||||
* ; $0301 64 byte string
|
||||
MOSFILE2 EQU $0341 ; $0341 length
|
||||
* ; $0342 64 byte string
|
||||
* ; $0382-$03BD $3C spare bytes
|
||||
* ;
|
||||
* ; $03BE-$03CF: local copy of control block
|
||||
* ; $03BE FPTR FPTR
|
||||
* ; $03BF CHANNEL
|
||||
* ; $03C0 LOAD LOAD ADDR
|
||||
* ; $03C4 EXEC EXEC COUNT
|
||||
* ; $03C8 SIZE START OFFSET
|
||||
* ; $03CC ATTR END
|
||||
* ; $03D0-$03FF: ProDOS vectors, etc.
|
||||
* ; $03D0-$03D2 JMP WARM
|
||||
* ; $03D3-$03D5 JMP WARM
|
||||
* ; $03D6-$03EC ProDOS
|
||||
* ; $03ED-$03DE XFER address
|
||||
* ; $03EF ProDOS
|
||||
* ; $03F0-$03D1 BRKV
|
||||
* ; $03F2-$03D3 RESETV
|
||||
* ; $03F4 RESETV ACK
|
||||
* ; $03F5-$03F7 JMP AMP
|
||||
* ; $03F8-$03FA JMP USER
|
||||
* ; $03FB-$03FD JMP MON
|
||||
* ; $03FE-$03FF IRQV
|
||||
*
|
||||
* EQU $0400 ; $0400- Can't use as ProDOS uses 'hidden' bytes
|
||||
* ; -$07FF within screen for workspace
|
||||
SCREEN EQU $0800 ; $0800-$0BFF half 80-col screen or 40-col screen
|
||||
IOBUF0 EQU $0C00 ; $0C00-$0FFF For loading ROM, OSFILE, *.
|
||||
IOBUF1 EQU $1000 ; $1000-$13FF Four open files for langs
|
||||
IOBUF2 EQU $1400 ; $1400-$17FF
|
||||
IOBUF3 EQU $1800 ; $1800-$1BFF
|
||||
IOBUF4 EQU $1C00 ; $1C00-$1FFF
|
||||
* ; $2000- Code, to do: make code move itself
|
||||
* -$4FFF
|
||||
BLKBUF EQU $5000 ; $5000-$53FF 512-byte buffer plus channel data
|
||||
BLKBUFEND EQU $5200
|
||||
|
||||
|
||||
* To do later:
|
||||
* ; $2000-$3FFF Hi-Res screen 1
|
||||
* ; $4000-$5FFF Hi-Res screen 2
|
||||
* ; $6000- available
|
||||
* ; -$95FF available
|
||||
* ; $9600-$BDFF ProDOS buffers
|
||||
* ; $BE00-$BEFF MLI Global workspace
|
||||
* ; $BF00-$BFFF MLI API interface
|
||||
|
||||
I think $0300-$03DF can be usefully used as filing system workspace,
|
||||
the mainmem copies of the filename and control block, MOSNAME and CBFILE,
|
||||
and later for OSGBPB.
|
||||
Loading…
x
Reference in New Issue
Block a user