mirror of
https://github.com/a2-4am/pitch-dark.git
synced 2024-06-08 15:29:30 +00:00
addPath works, trimmed prodos.a, upgraded to various 65c02 opcodes
This commit is contained in:
4am
parent
6a3f4e8f96
commit
c22701ca06
2
Makefile
2
Makefile
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@ -21,7 +21,7 @@ asm:
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mkdir -p build
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cd src && $(ACME) pitchdark.a
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cp res/work.po $(BUILDDISK)
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java -jar $(AC) -p $(BUILDDISK) "PTCHDARK.SYSTEM" sys 0x2000 < "build/PTCHDARK.SYSTEM#FF2000"
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java -jar $(AC) -p $(BUILDDISK) "PITCHDRK.SYSTEM" sys 0x2000 < "build/PITCHDRK.SYSTEM#FF2000"
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clean:
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rm -rf build/
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56
src/config.a
56
src/config.a
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@ -1,11 +1,15 @@
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gCurrentGame = 22
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kNumberOfGames = 25
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kInfoFilename
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gCurrentGame
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!byte 22
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kGameDirectory ; length-prefixed pathname of where game subdirectories are stored
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!byte 2
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!raw "Z/"
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kInfoFilename ; length-prefixed partial pathname of game info file, starting with '/' because reasons
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!byte 5
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!raw "/INFO"
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directories
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subdirectories ; length of this array must = kNumberOfGames, there is no range checking
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!word .ballyhoo
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!word .cutthroats
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!word .deadline
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@ -31,6 +35,8 @@ directories
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!word .zorki
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!word .zorkii
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!word .zorkiii
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; length-prefixed names of each subdirectory in game directory, 1 per game
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.ballyhoo
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!byte 8
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!raw "BALLYHOO"
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@ -108,38 +114,46 @@ directories
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!raw "ZORK.III"
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LoadGameInfo
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lda gCurrentGameInfo
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stz .path
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lda #<kGameDirectory
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ldy #>kGameDirectory
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jsr addToPath
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lda gCurrentGame
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asl
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tax
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lda directories,x
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sta $00
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lda directories+1,x
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sta $01
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ldx #$02
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lda subdirectories,x
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ldy subdirectories+1,x
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jsr addToPath
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lda #<kInfoFilename
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sta $00
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lda #>kInfoFilename
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sta $01
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ldy #>kInfoFilename
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jsr addToPath
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lda LoadFile1Shot
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jsr LoadFile
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!word .path
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!word $0800
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!word $1400
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!word $1C00
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rts
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addToPath
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sta $00
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sty $01
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ldx .path ; current pathname length
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ldy #$00
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lda ($00),y
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tay
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lda ($00),y ; length of this segment
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inc
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sta .a+1
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ldy #$01
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- lda ($00),y
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sta .path,x
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sta .pathbuffer,x
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inx
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dey
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bne -
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iny
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.a cpy #$FD ; set at runtime
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bcc -
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stx .path
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rts
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.path
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!byte $FF ; set at runtime
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!raw "Z/.............../...."
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!byte $FD ; set at runtime
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.pathbuffer
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!fill 64 ; enough zeroes for any ProDOS pathname
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@ -3,7 +3,7 @@
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!cpu 65c02
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!ct "lcase.ct"
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!to "../build/PTCHDARK.SYSTEM#FF2000",plain
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!to "../build/PITCHDRK.SYSTEM#FF2000",plain
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*=$2000
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; ROM routines
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@ -27,7 +27,9 @@ Init
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beq + ; yes, continue
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jmp QuitToProDOS
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+
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jsr LoadFile1Shot ; load WEEGUI binary at $4000
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jsr LoadGameInfo
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jsr LoadFile ; load WEEGUI binary at $4000
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!word weeguifilename
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!word $4000
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!word $2000
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394
src/prodos.a
394
src/prodos.a
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@ -1,44 +1,108 @@
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; ProDOS functions
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;
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; Primary:
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; LoadFile
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; SaveFile
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; QuitToProDOS
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;
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; MLI command codes
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CMD_QUIT = $65 ; quit to ProDOS
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CMD_CREATE = $C0 ; create new file
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CMD_DESTROY = $C1 ; delete a file
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CMD_GETFILEINFO = $C4 ; get file (or volume) info
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CMD_ONLINE = $C5 ; check online volume(s)
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CMD_SETPREFIX = $C6 ; change default pathname prefix
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CMD_OPEN = $C8 ; open a file
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CMD_NEWLINE = $C9 ; set line-by-line read mode
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CMD_READ = $CA ; read an open file
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CMD_WRITE = $CB ; write to an open file
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CMD_CLOSE = $CC ; close an open file
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CMD_SETMARK = $CE ; change position in an open file
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CMD_SETEOF = $D0 ; set file size
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; MLI parameter counts
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PC_QUIT = $04
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PC_CREATE = $07
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PC_DESTROY = $01
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PC_GETFILEINFO = $0A
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PC_ONLINE = $02
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PC_SETPREFIX = $01
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PC_OPEN = $03
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PC_NEWLINE = $03
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PC_READ = $04
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PC_WRITE = $04
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PC_CLOSE = $01
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PC_SETMARK = $02
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PC_SETEOF = $02
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PRODOSMLI = $BF00 ; [callable] MLI entry point
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MACHID = $BF98
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; MLI error codes
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ERR_FNF = $46
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ERR_EOF = $4C
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;-------------------------------
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; LoadFile
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; load a file into memory all at once, using ProDOS MLI calls
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;
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; in: stack contains 8 bytes of parameters:
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; +1 address of pathname
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; +3 address of data buffer (to receive file contents)
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; +5 [word] maximum length of data to read
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; +7 address of ProDOS file buffer
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; out: if C set, load failed and A contains error code
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; from open or read
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; if C clear, load succeeded and ($02) contains
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; data loaded from file
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; all other flags clobbered
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; all registers clobbered
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; stack set to next instruction after parameters
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;-------------------------------
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!zone {
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LoadFile
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pla
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sta $00
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plx
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stx $01
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lda #$08
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clc
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adc $00
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bcc +
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inx
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+ phx
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pha
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ldy #$01
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lda ($00),y ; lo byte of pathname
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sta mliparam+1
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iny
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lda ($00),y ; hi byte of pathname
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sta mliparam+2
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ldy #$07
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lda ($00),y ; lo byte of ProDOS file buffer
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sta mliparam+3
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iny
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lda ($00),y ; hi byte of ProDOS file buffer
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sta mliparam+4
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jsr _openfile
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bcs .exit ; C set on error
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pha ; push file reference number
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ldy #$03
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lda ($00),y ; lo address of data buffer
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sta mliparam+2
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iny
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lda ($00),y ; hi address of data buffer
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sta mliparam+3
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iny
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lda ($00),y ; lo data length
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sta mliparam+4
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iny
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lda ($00),y ; hi data length
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sta mliparam+5
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pla ; pull file reference number
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jsr _readfile
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php ; save flags from readfile
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pha
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jsr _closefile ; always close whether read worked or not
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pla
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plp ; restore flags from readfile
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; (so caller gets codes from read attempt,
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; not close)
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.exit
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rts
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}
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;-------------------------------
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; SaveFile1Shot
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; save a file to disk all at once,
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; using ProDOS MLI calls
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; SaveFile
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; save a file to disk all at once, using ProDOS MLI calls
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;
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; in: stack contains 11 ($0B) bytes of parameters:
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; +1 address of pathname
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@ -55,22 +119,17 @@ ERR_EOF = $4C
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; stack set to next instruction after parameters
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;-------------------------------
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!zone {
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SaveFile1Shot
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SaveFile
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pla
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sta $00
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pla
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sta $01
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tax
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plx
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stx $01
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lda #$0B
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clc
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adc $00
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bcc .noinc
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bcc +
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inx
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.noinc
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tay
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txa
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pha
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tya
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+ phx
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pha
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ldy #$01
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@ -79,7 +138,7 @@ SaveFile1Shot
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iny
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lda ($00),y ; hi byte of pathname
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sta mliparam+2
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jsr DeleteFile ; don't care if this fails
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jsr _deletefile ; don't care if this fails
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ldy #$03
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lda ($00),y ; file type
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sta mliparam+4
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@ -89,8 +148,8 @@ SaveFile1Shot
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iny
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lda ($00),y ; hi byte of aux file type
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sta mliparam+6
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jsr CreateFile
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bcs .savefile1s
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jsr _createfile
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bcs .exit
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ldy #$0A
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lda ($00),y ; lo byte of ProDOS file buffer
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@ -98,8 +157,8 @@ SaveFile1Shot
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iny
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lda ($00),y ; hi byte of ProDOS file buffer
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sta mliparam+4
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jsr OpenFile
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bcs .savefile1s
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jsr _openfile
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bcs .exit
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pha ; push file reference number
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ldy #$06
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@ -115,95 +174,15 @@ SaveFile1Shot
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lda ($00),y ; hi data length
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sta mliparam+5
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pla ; pull file reference number
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jsr WriteFile
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jsr _writefile
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php ; save flags from writefile
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pha
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jsr CloseFile ; always close whether write worked or not
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jsr _closefile ; always close whether write worked or not
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pla
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plp ; restore flags from write
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; (so caller gets codes from write attempt,
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; not close)
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.savefile1s
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rts
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}
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;-------------------------------
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; LoadFile1Shot
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; load a file into memory all at once,
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; using ProDOS MLI calls
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;
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; in: stack contains 8 bytes of parameters:
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; +1 address of pathname
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; +3 address of data buffer (to receive file contents)
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; +5 [word] maximum length of data to read
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; +7 address of ProDOS file buffer
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; out: if C set, load failed and A contains error code
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; from open or read
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; if C clear, load succeeded and ($02) contains
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; data loaded from file
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; all other flags clobbered
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; all registers clobbered
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; stack set to next instruction after parameters
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;-------------------------------
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!zone {
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LoadFile1Shot
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pla
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sta $00
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pla
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sta $01
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tax
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lda #$08
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clc
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adc $00
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bcc .noinc
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inx
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.noinc
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tay
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txa
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pha
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tya
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pha
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ldy #$01
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lda ($00),y ; lo byte of pathname
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sta mliparam+1
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iny
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lda ($00),y ; hi byte of pathname
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sta mliparam+2
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ldy #$07
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lda ($00),y ; lo byte of ProDOS file buffer
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sta mliparam+3
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iny
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lda ($00),y ; hi byte of ProDOS file buffer
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sta mliparam+4
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jsr OpenFile
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bcs .loadfile1s ; C set on error
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pha ; push file reference number
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ldy #$03
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lda ($00),y ; lo address of data buffer
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sta mliparam+2
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iny
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lda ($00),y ; hi address of data buffer
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sta mliparam+3
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iny
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lda ($00),y ; lo data length
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sta mliparam+4
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iny
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lda ($00),y ; hi data length
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sta mliparam+5
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pla ; pull file reference number
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jsr ReadFile
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php ; save flags from readfile
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pha
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jsr CloseFile ; always close whether read worked or not
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pla
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plp ; restore flags from readfile
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; (so caller gets codes from read attempt,
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; not close)
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.loadfile1s
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.exit
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rts
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}
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@ -217,45 +196,15 @@ LoadFile1Shot
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; if C clear, open succeeded and A contains
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; file reference number
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;-------------------------------
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!zone {
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OpenFile
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_openfile
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lda #CMD_OPEN ; MLI command
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ldy #PC_OPEN ; number of parameters for 'open' command
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jsr mli
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bcs .openfile
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bcs +
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lda refnum ; caller should save file reference number
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; as this memory location may be
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; overwritten by later MLI calls
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.openfile
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rts
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}
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|
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;-------------------------------
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; set line-by-line mode via ProDOS MLI
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;
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; in: A = file reference number
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; out: if C set, set failed and A contains error code
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; if S clear, set succeeded and A contains the same
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; file reference number that was passed in
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;-------------------------------
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lbl_mask = $7F
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lbl_cr = $0D
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!zone {
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SetLineByLine
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sta mliparam+1 ; store file reference number
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lda #lbl_mask ; accept high bit set or clear
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sta mliparam+2
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lda #lbl_cr ; carriage return character
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sta mliparam+3
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lda #CMD_NEWLINE ; MLI 'newline' command to set read mode
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ldy #PC_NEWLINE ; number of parameters for 'newline' command
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jsr mli
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bcs .setlinebylin
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lda mliparam+1 ; if no error, return file reference number
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.setlinebylin
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rts
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}
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+ rts
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||||
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;-------------------------------
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||||
; read an open file via ProDOS MLI
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|
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@ -267,38 +216,14 @@ SetLineByLine
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; if C clear, read succeeded and A contains the same
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; file reference number that was passed in
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;-------------------------------
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!zone {
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ReadFile
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_readfile
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||||
sta mliparam+1 ; store file reference number
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lda #CMD_READ ; MLI read command
|
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ldy #PC_READ ; number of parameters for 'read' command
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jsr mli
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bcs .readfile
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bcs +
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lda mliparam+1 ; if no error, return file reference number
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.readfile
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rts
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}
|
||||
|
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;-------------------------------
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||||
; change file position in an open file via ProDOS MLI
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||||
;
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||||
; in: A = file reference number
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||||
; caller has filled @mliparam+2/+3/+4 with
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||||
; new file position
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||||
; out: if C set, set_mark call failed and A contains error code
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||||
; if C clear, set_mark call succeeded and A contains
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; the same file reference number that was passed in
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;-------------------------------
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!zone {
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SetMark
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sta mliparam+1 ; store file reference number
|
||||
lda #CMD_SETMARK ; MLI set_mark command
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ldy #PC_SETMARK ; number of params for 'set_mark' cmd
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jsr mli
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bcs .exit
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lda mliparam+1 ; if no error, return file refnum
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.exit rts
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}
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+ rts
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||||
|
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;-------------------------------
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||||
; write to an open file via ProDOS MLI
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||||
|
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@ -310,38 +235,14 @@ SetMark
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|||
; if C clear, write succeeded and A contains the same
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||||
; file reference number that was passed in
|
||||
;-------------------------------
|
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!zone {
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WriteFile
|
||||
_writefile
|
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sta mliparam+1 ; store file reference number
|
||||
lda #CMD_WRITE ; MLI write command
|
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ldy #PC_WRITE ; number of parameters for 'write' command
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jsr mli
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bcs .writefile
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bcs +
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lda mliparam+1 ; if no error, return file reference number
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.writefile
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||||
rts
|
||||
}
|
||||
|
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;-------------------------------
|
||||
; set file size in an open file via ProDOS MLI
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||||
;
|
||||
; in: A = file reference number
|
||||
; caller has filled @mliparam+2/+3/+4 with
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; new file size
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||||
; out: if C set, set_eof call failed and A contains error code
|
||||
; if C clear, set_eof call succeeded and A contains
|
||||
; the same file reference number that was passed in
|
||||
;-------------------------------
|
||||
!zone {
|
||||
SetEOF
|
||||
sta mliparam+1 ; store file reference number
|
||||
lda #CMD_SETEOF ; MLI set_eof command
|
||||
ldy #PC_SETEOF ; number of params for 'set_eof' cmd
|
||||
jsr mli
|
||||
bcs .exit
|
||||
lda mliparam+1 ; if no error, return file refnum
|
||||
.exit rts
|
||||
}
|
||||
+ rts
|
||||
|
||||
;-------------------------------
|
||||
; close an open file
|
||||
|
|
@ -349,7 +250,7 @@ SetEOF
|
|||
; out: if error, C set and A contains error code
|
||||
; if success, C clear
|
||||
;-------------------------------
|
||||
CloseFile
|
||||
_closefile
|
||||
sta mliparam+1 ; store file reference number
|
||||
lda #CMD_CLOSE ; MLI close command
|
||||
ldy #PC_CLOSE ; number of parameters for 'close' command
|
||||
|
|
@ -369,7 +270,7 @@ CloseFile
|
|||
;-------------------------------
|
||||
accessbits = $C3 ; full access
|
||||
|
||||
CreateFile
|
||||
_createfile
|
||||
lda #accessbits
|
||||
sta mliparam+3 ; access bits (full access)
|
||||
ldy #1
|
||||
|
|
@ -391,93 +292,12 @@ CreateFile
|
|||
; out: if error, C set and A contains error code
|
||||
; if success, C clear
|
||||
;-------------------------------
|
||||
DeleteFile
|
||||
_deletefile
|
||||
lda #CMD_DESTROY ; MLI destroy command
|
||||
ldy #PC_DESTROY ; number of parameters for 'destroy' command
|
||||
jsr mli
|
||||
rts
|
||||
|
||||
;-------------------------------
|
||||
; change current directory (set prefix)
|
||||
; using ProDOS MLI
|
||||
; in: caller has filled @mliparam
|
||||
; with address of pathname
|
||||
; out: if error, C set and A contains error code
|
||||
; if success, C clear
|
||||
;-------------------------------
|
||||
SetPrefix
|
||||
lda #CMD_SETPREFIX
|
||||
ldy #PC_SETPREFIX
|
||||
jsr mli
|
||||
rts
|
||||
|
||||
;-------------------------------
|
||||
; get volume name of disk in specific slot+drive
|
||||
; in: A = unit number (DSSS0000)
|
||||
; out: if no disk in drive or any MLI error, C set and A contains error code
|
||||
; if disk found, C clear and @VolumeName contains volume name
|
||||
; (length byte + up to 14 character name, no leading slash)
|
||||
;-------------------------------
|
||||
!zone {
|
||||
GetVolumeName
|
||||
sta mliparam+1
|
||||
lda #<OnlineReturn
|
||||
sta mliparam+2
|
||||
lda #>OnlineReturn
|
||||
sta mliparam+3
|
||||
jsr Online
|
||||
rts
|
||||
OnlineReturn
|
||||
!byte $FF
|
||||
VolumeName
|
||||
!byte $FF,$FF,$FF,$FF,$FF,$FF,$FF
|
||||
!byte $FF,$FF,$FF,$FF,$FF,$FF,$FF,$FF
|
||||
}
|
||||
|
||||
;-------------------------------
|
||||
; check if volume is online
|
||||
; using ProDOS MLI
|
||||
; in: caller has filled @mliparam
|
||||
; with unit number
|
||||
; out: if error, C set and A contains error code
|
||||
; if success, C clear
|
||||
;-------------------------------
|
||||
Online
|
||||
lda #CMD_ONLINE
|
||||
ldy #PC_ONLINE
|
||||
jsr mli
|
||||
rts
|
||||
|
||||
;-------------------------------
|
||||
; query volume information
|
||||
; using ProDOS MLI
|
||||
; in: nothing (queries last fetched volume)
|
||||
; out: if error, C set and A contains error code
|
||||
; if success, C clear and MLI buffer is filled
|
||||
; (access, file type, block count, dates and times)
|
||||
;-------------------------------
|
||||
GetVolumeInfo
|
||||
lda OnlineReturn
|
||||
and #$0F
|
||||
tax
|
||||
inx
|
||||
stx OnlineReturn
|
||||
tay
|
||||
- lda OnlineReturn,y
|
||||
sta VolumeName,y
|
||||
dey
|
||||
bne -
|
||||
lda #$2F ;'/'
|
||||
sta VolumeName
|
||||
lda #<OnlineReturn
|
||||
sta mliparam+1
|
||||
lda #>OnlineReturn
|
||||
sta mliparam+2
|
||||
lda #CMD_GETFILEINFO
|
||||
ldy #PC_GETFILEINFO
|
||||
jsr mli
|
||||
rts
|
||||
|
||||
QuitToProDOS
|
||||
lda #CMD_QUIT
|
||||
ldy #PC_QUIT
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user