mirror of
https://github.com/deater/dos33fsprogs.git
synced 2025-02-24 11:29:18 +00:00
chiptune_player: more work integrating qkumba's RTS code
This commit is contained in:
Vince Weaver
parent
e0905f64ae
commit
ec3bb325cc
@ -12,23 +12,23 @@ chiptune_player.dsk: CHIPTUNE_PLAYER ./krw/INTRO2.KRW HELLO
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cp chiptune_empty.dsk chiptune_player.dsk
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$(DOS33) -y chiptune_player.dsk SAVE A HELLO
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$(DOS33) -y chiptune_player.dsk BSAVE -a 0x0C00 CHIPTUNE_PLAYER
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$(DOS33) -y chiptune_player.dsk SAVE B ./krw/CAMOUFLAGE.KRW
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$(DOS33) -y chiptune_player.dsk SAVE B ./krw/CHRISTMAS.KRW
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$(DOS33) -y chiptune_player.dsk SAVE B ./krw/CRMOROS.KRW
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$(DOS33) -y chiptune_player.dsk SAVE B ./krw/DEATH2.KRW
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$(DOS33) -y chiptune_player.dsk SAVE B ./krw/DEMO4.KRW
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$(DOS33) -y chiptune_player.dsk SAVE B ./krw/HARKONEN.KRW
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$(DOS33) -y chiptune_player.dsk SAVE B ./krw/INTRO2.KRW
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# $(DOS33) -y chiptune_player.dsk SAVE B ./krw/KORO.KRW
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$(DOS33) -y chiptune_player.dsk SAVE B ./krw/LYRA2.KRW
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# $(DOS33) -y chiptune_player.dsk SAVE B ./krw/MMCM.KRW
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$(DOS33) -y chiptune_player.dsk SAVE B ./krw/RANDOM.KRW
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$(DOS33) -y chiptune_player.dsk SAVE B ./krw/ROBOT.KRW
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$(DOS33) -y chiptune_player.dsk SAVE B ./krw/SDEMO.KRW
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$(DOS33) -y chiptune_player.dsk SAVE B ./krw/SPUTNIK.KRW
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$(DOS33) -y chiptune_player.dsk SAVE B ./krw/TECHNO.KRW
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$(DOS33) -y chiptune_player.dsk SAVE B ./krw/UNIVERSE.KRW
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$(DOS33) -y chiptune_player.dsk SAVE B ./krw/WAVE.KRW
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$(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/CAMOUFLAGE.KRW
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$(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/CHRISTMAS.KRW
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$(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/CRMOROS.KRW
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$(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/DEATH2.KRW
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$(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/DEMO4.KRW
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$(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/HARKONEN.KRW
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$(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/INTRO2.KRW
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# $(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/KORO.KRW
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$(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/LYRA2.KRW
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# $(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/MMCM.KRW
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$(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/RANDOM.KRW
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$(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/ROBOT.KRW
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$(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/SDEMO.KRW
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$(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/SPUTNIK.KRW
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$(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/TECHNO.KRW
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$(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/UNIVERSE.KRW
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$(DOS33) -y chiptune_player.dsk BSAVE -a 0x1c00 ./krw/WAVE.KRW
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# $(DOS33) -y chiptune_player.dsk SAVE B OUT.LZ4
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# $(DOS33) -y chiptune_player.dsk BSAVE -a 0x6000 OUT.0
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@ -65,8 +65,9 @@ chiptune_player.o: chiptune_player.s \
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../asm_routines/dos33_routines.s \
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../asm_routines/lz4_decode.s \
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../asm_routines/keypress_minimal.s \
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qkumba_rts.s \
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rasterbars.s volume_bars.s interrupt_handler.s \
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chip_title.inc zp.inc
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song_list.inc chip_title.inc zp.inc
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ca65 -o chiptune_player.o chiptune_player.s -l chiptune_player.lst
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CHIPTUNE_UNROLLED: chiptune_unrolled.o
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@ -3,9 +3,15 @@
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.include "zp.inc"
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; program is ~4k, so from 0xc00 to 0x1C00
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LZ4_BUFFER EQU $1C00 ; $1C00 - $5C00, 16k for now
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UNPACK_BUFFER EQU $5E00 ; $5E00 - $9600, 14k, $3800
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; trying not to hit DOS at $9600
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; Reserve 3 chunks plus spare (14k)
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DISK_BUFFER EQU $5D00 ; for disk loading
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UNPACK_BUFFER EQU $6000 ; $6000 - $9800, 14k, $3800
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; by using qkumba's RTS code
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; no need for DOS, so we actually
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; are free the whole way to $C000
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; instead of stopping at $9600
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; $6000 - $C000 = 24k
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NUM_FILES EQU 15
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@ -15,6 +21,10 @@ NUM_FILES EQU 15
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jsr HOME
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jsr TEXT
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; Init disk code
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jsr rts_init
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; init variables
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lda #0
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@ -22,16 +32,17 @@ NUM_FILES EQU 15
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sta CH
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sta CV
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sta DONE_PLAYING
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sta XPOS
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sta MB_CHUNK_OFFSET
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sta DECODE_ERROR
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lda #$ff
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sta RASTERBARS_ON
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lda #0
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; lda #4 ; start at DEMO4
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; lda #7 ; start at LYRA
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lda #10 ; start at SDEMO
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; lda #10 ; start at SDEMO
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sta WHICH_FILE
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; print detection message
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@ -288,7 +299,7 @@ new_song:
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jsr get_filename
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lda #8
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lda #8 ; print filename to screen
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sta CH
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lda #21
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sta CV
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@ -299,9 +310,16 @@ new_song:
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sta OUTH
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jsr print_both_pages
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disk_buff EQU LZ4_BUFFER
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read_size EQU $4000
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;disk_buff EQU LZ4_BUFFER
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;read_size EQU $4000
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; open and read a file
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; needs to be space-padded $A0 30-byte filename
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; loads to whatever it was BSAVED at (default is $1C00)
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lda #<readfile_filename
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sta namlo
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lda #>readfile_filename
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sta namhi
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jsr read_file ; read KRW file from disk
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@ -569,7 +587,8 @@ krw_file:
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.include "../asm_routines/pageflip.s"
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.include "../asm_routines/gr_unrle.s"
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.include "../asm_routines/gr_setpage.s"
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.include "../asm_routines/dos33_routines.s"
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;.include "../asm_routines/dos33_routines.s"
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.include "qkumba_rts.s"
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.include "../asm_routines/gr_hlin.s"
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.include "../asm_routines/lz4_decode.s"
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.include "../asm_routines/keypress_minimal.s"
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700
chiptune_player/qkumba_rts.s
Normal file
700
chiptune_player/qkumba_rts.s
Normal file
@ -0,0 +1,700 @@
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; read any file slot 6 version
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; based on FASTLD6 and RTS copyright (c) Peter Ferrie 2011-2013,2018
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; modified to assembled with ca64 -- vmw
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; added code to patch it to run from current disk slot -- vmw
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adrlo = $26 ; constant from boot prom
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adrhi = $27 ; constant from boot prom
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tmpsec = $3c ; constant from boot prom
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reqsec = $3d ; constant from boot prom
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sizelo = $44
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sizehi = $45
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secsize = $46
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; TEMPY = $fb
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; namlo = $f6
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; namhi = $f7
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; step = $f8 ; state for stepper motor
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; tmptrk = $f9 ; temporary copy of current track
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; phase = $fa ; current phase for /seek
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dirbuf = $5d00
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;$1e00 ; note, don't put this immediately below
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; the value being read as destaddr-4
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; is temporarily overwritten during read
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; process
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; filename to open is 30-character Apple text:
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readfile_filename:
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; .byte "SDEMO.KRW "
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.byte 'S'|$80,'D'|$80,'E'|$80,'M'|$80,'O'|$80,'.'|$80,'K'|$80,'R'|$80
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.byte 'W'|$80,$A0,$A0,$A0,$A0,$A0,$A0,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0
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;unhook DOS and build nibble table
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rts_init:
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; patch to use current drive
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; locate input paramater list
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jsr $3E3
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; result is in A:Y
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sta $FF
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sty $FE
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ldy #1
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lda ($FE),y
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; list+1 should have slot<<8
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ora #$80 ; add in $80
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; c0e0
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sta mlsmc06+1
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; c0e8
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clc
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adc #8
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sta mlsmc02+1
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; c0e9
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clc
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adc #1
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sta mlsmc01+1
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; c0ec
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clc
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adc #3
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sta mlsmc03+1
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sta mlsmc04+1
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sta mlsmc05+1
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jsr $fe93 ; clear COUT
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jsr $fe89 ; clear KEYIN
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;========================
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; Create nibble table
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; Note: the table starts 16 bytes in, and is sparse
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; so it doesn't entirely look like the DOS33 table at
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ldy #0
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ldx #3
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L1: stx $3c ; store tempx (3?)
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txa ; a=x (a=3)
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asl ; a*=2 (a=6)
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bit $3c ; a&tempx, set N/V (a=6)
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beq L3 ; if 0, skip to L3
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ora $3c ; a|=tempx (a=7)
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eor #$ff ; a=~a (a=f8)
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and #$7e ; a&=0x7e 0111 1110 (a=78)
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L2: bcs L3 ; this set way back at asl??
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lsr ; a>>1 a=3c c=0
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; a=1e c=0
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; a=0f c=0
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; a=07 c=1
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bne L2 ; if a!=0 goto l2
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tya ; if a==0, a=y
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sta nibtbl, x ; write out to table
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iny ; increment y
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L3: inx ; increment x x=4, a=0f
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bpl L1 ; loop while high bit not set
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rts
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;===========================
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; opendir / read_file
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;===========================
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; turn on drive and read volume table of contents
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read_file:
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opendir:
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mlsmc01:lda $c0e9 ; turn slot#6 drive on
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ldx #0
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stx adrlo ; zero out adrlo
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stx secsize ; zero out secsize
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lda #$11 ; a=$11 (VTOC)
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jsr readdirsec
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firstent:
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lda dirbuf+1
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; lock if entry not found
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entry_not_found:
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beq entry_not_found
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; read directory sector
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ldx dirbuf+2
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jsr seekread1
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ldy #7 ;number of directory entries in a sector
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ldx #$2b ;offset of filename in directory entry
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nextent:
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tya
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pha ; was **phy**
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txa
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pha ; was **phx**
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ldy #$1d
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; match name backwards (slower but smaller)
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L4:
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lda (namlo), y
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cmp dirbuf, x
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beq foundname
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pla
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; move to next directory in this block, if possible
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clc
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adc #$23
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tax
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pla
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tay ; was **ply**
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dey
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bne nextent
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beq firstent ; was **bra**
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foundname:
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dex
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dey
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bpl L4
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pla
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tay ; was **ply**
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pla
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; read track/sector list
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lda dirbuf-32, y
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ldx dirbuf-31, y
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jsr seekread1
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; read load offset and length info only, initially
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lda #<filbuf
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sta adrlo
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lda #4
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sta secsize
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lda dirbuf+12
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ldx dirbuf+13
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ldy #>filbuf
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jsr seekread
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; reduce load offset by 4, to account for offset and length
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sec
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lda filbuf
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sbc #4
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sta adrlo
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lda filbuf+1
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sbc #0
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sta adrhi
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; save on stack bytes that will be overwritten by extra read
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ldy #3
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L5:
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lda (adrlo), y
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pha
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dey
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bpl L5
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lda adrhi
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pha
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lda adrlo
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pha
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; increase load size by 4, to account for offst and length
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lda filbuf+2
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adc #3
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sta sizelo
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sta secsize
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lda filbuf+3
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adc #0
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sta sizehi
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beq readfirst
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lda #0 ; was **stz secsize**
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sta secsize
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readfirst:
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ldy #$0c
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; read a file sector
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readnext:
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tya
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pha
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lda dirbuf, y ; A = track
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ldx dirbuf+1, y ; x = sector
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jsr seekread1
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pla
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tay
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; if low count is non-zero then we are done
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; (can happen only for partial last block)
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lda secsize
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bne readdone
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; continue if more than $100 bytes left
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dec sizehi
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bne L6
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; set read size to min(length, $100)
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lda sizelo
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beq readdone
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sta secsize
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L6:
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inc adrhi
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iny
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iny
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bne readnext
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; save current address for after t/s read
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lda adrhi
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pha
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lda adrlo
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pha
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lda #0
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sta adrlo ; was **stz adrlo**
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; read next track/sector sector
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lda dirbuf+1
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ldx dirbuf+2
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jsr readdirsec
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clc
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; restore current address
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readdone:
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pla
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; sta adrhi
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; pla
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sta adrlo ; code originally had this backwards
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pla
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sta adrhi
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bcc readfirst
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mlsmc02:lda $c0e8
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; restore from stack bytes that were overwritten by extra read
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ldx #3
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ldy #0
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L7:
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pla
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sta (adrlo), y
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iny
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dex
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bpl L7
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rts
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;======================
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; readdirsec
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;======================
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; a = track?
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; x = sector?
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readdirsec:
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ldy #>dirbuf
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seekread:
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sty adrhi
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seekread1:
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sta phase
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lda sectbl, x
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sta reqsec
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jsr readadr
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; if track does not match, then seek
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cpx phase
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beq checksec
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jsr seek
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;=========================================
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; re merge in with qkumba's recent changes
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; to fix seek problem?
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;=========================================
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; [re-]read sector
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re_read_addr:
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jsr readadr
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checksec:
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cmp reqsec
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bne re_read_addr
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;=========================
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; read sector data
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;=========================
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readdata:
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jsr readd5aa
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eor #$ad ; zero A if match
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bne re_read_addr
|
||||
|
||||
L12:
|
||||
mlsmc03:ldx $c0ec ; read until valid data (high bit set)
|
||||
bpl L12
|
||||
eor nibtbl-$80, x
|
||||
sta bit2tbl-$aa, y
|
||||
iny
|
||||
bne L12
|
||||
L13:
|
||||
mlsmc04:ldx $c0ec ; read until valid data (high bit set)
|
||||
bpl L13
|
||||
eor nibtbl-$80, x
|
||||
sta (adrlo), y ; the real address
|
||||
iny
|
||||
cpy secsize
|
||||
bne L13
|
||||
ldy #0
|
||||
L14:
|
||||
ldx #$a9
|
||||
L15:
|
||||
inx
|
||||
beq L14
|
||||
lda (adrlo), y
|
||||
lsr bit2tbl-$aa, x
|
||||
rol
|
||||
lsr bit2tbl-$aa, x
|
||||
rol
|
||||
sta (adrlo), y
|
||||
iny
|
||||
cpy secsize
|
||||
bne L15
|
||||
rts
|
||||
|
||||
; no tricks here, just the regular stuff
|
||||
|
||||
;=======================
|
||||
; readaddr -- read the address field
|
||||
;=======================
|
||||
; Find address field, put track in cutrk, sector in tmpsec
|
||||
|
||||
readadr:
|
||||
jsr readd5aa
|
||||
cmp #$96
|
||||
bne readadr
|
||||
ldy #3 ; three?
|
||||
; first read volume/volume
|
||||
; then track/track
|
||||
; then sector/sector?
|
||||
adr_read_two_bytes:
|
||||
tax
|
||||
jsr readnib
|
||||
rol
|
||||
sta tmpsec
|
||||
jsr readnib
|
||||
and tmpsec
|
||||
dey
|
||||
bne adr_read_two_bytes
|
||||
rts
|
||||
|
||||
;========================
|
||||
; make sure we see the $D5 $AA pattern
|
||||
|
||||
readd5aa:
|
||||
L16:
|
||||
jsr readnib
|
||||
L17:
|
||||
cmp #$d5
|
||||
bne L16
|
||||
jsr readnib
|
||||
cmp #$aa
|
||||
bne L17
|
||||
tay ; we need Y=#$AA later
|
||||
|
||||
readnib:
|
||||
mlsmc05:lda $c0ec ; read until valid (high bit set)
|
||||
bpl readnib
|
||||
|
||||
seekret:
|
||||
rts
|
||||
|
||||
;=====================
|
||||
; SEEK
|
||||
;=====================
|
||||
; current track in X?
|
||||
; desired track in phase
|
||||
|
||||
seek:
|
||||
ldy #0
|
||||
sty step
|
||||
asl phase ; multiply by two
|
||||
txa ; current track?
|
||||
asl ; mul by two
|
||||
copy_cur:
|
||||
tax
|
||||
sta tmptrk
|
||||
sec
|
||||
sbc phase
|
||||
beq L22
|
||||
bcs L18
|
||||
eor #$ff
|
||||
inx
|
||||
bcc L19
|
||||
L18:
|
||||
sbc #1
|
||||
dex
|
||||
L19:
|
||||
cmp step
|
||||
bcc L20
|
||||
lda step
|
||||
L20:
|
||||
cmp #8
|
||||
bcs L21
|
||||
tay
|
||||
sec
|
||||
L21:
|
||||
txa
|
||||
pha
|
||||
ldx step1, y
|
||||
L22:
|
||||
php
|
||||
bne L24
|
||||
L23:
|
||||
clc
|
||||
lda tmptrk
|
||||
ldx step2, y
|
||||
L24:
|
||||
stx tmpsec
|
||||
and #3
|
||||
rol
|
||||
tax
|
||||
lsr
|
||||
mlsmc06:lda $c0e0, x
|
||||
L25:
|
||||
ldx #$12
|
||||
L26:
|
||||
dex
|
||||
bpl L26
|
||||
dec tmpsec
|
||||
bne L25
|
||||
bcs L23
|
||||
plp
|
||||
beq seekret
|
||||
pla
|
||||
inc step
|
||||
bne copy_cur
|
||||
|
||||
|
||||
.if 0
|
||||
;==============================
|
||||
; old code
|
||||
|
||||
|
||||
; [re-]read sector
|
||||
|
||||
re_read_addr:
|
||||
jsr readadr
|
||||
|
||||
repeat_until_right_sector:
|
||||
cmp reqsec
|
||||
bne re_read_addr
|
||||
|
||||
;==========================
|
||||
; read sector data
|
||||
;==========================
|
||||
;
|
||||
|
||||
readdata:
|
||||
mlsmc07:
|
||||
ldy $c0ec ; read data until valid
|
||||
bpl readdata
|
||||
find_D5:
|
||||
cpy #$d5 ; if not D5, repeat
|
||||
bne readdata
|
||||
find_AA:
|
||||
mlsmc08:
|
||||
ldy $c0ec ; read data until valid, should be AA
|
||||
bpl find_AA
|
||||
cpy #$aa ; we need Y=#$AA later
|
||||
bne find_D5
|
||||
find_AD:
|
||||
mlsmc09:lda $c0ec ; read data until high bit set (valid)
|
||||
bpl find_AD
|
||||
eor #$ad ; should match $ad
|
||||
bne * ; lock if didn't find $ad (failure)
|
||||
L12:
|
||||
mlsmc0A:ldx $c0ec ; read data until high bit set (valid)
|
||||
bpl L12
|
||||
eor nibtbl-$80, x
|
||||
sta bit2tbl-$aa, y
|
||||
iny
|
||||
bne L12
|
||||
L13:
|
||||
mlsmc0B:ldx $c0ec ; read data until high bit set (valid)
|
||||
bpl L13
|
||||
eor nibtbl-$80, x
|
||||
sta (adrlo), y ; the real address
|
||||
iny
|
||||
cpy secsize
|
||||
bne L13
|
||||
ldy #0
|
||||
L14:
|
||||
ldx #$a9
|
||||
L15:
|
||||
inx
|
||||
beq L14
|
||||
lda (adrlo), y
|
||||
lsr bit2tbl-$aa, x
|
||||
rol
|
||||
lsr bit2tbl-$aa, x
|
||||
rol
|
||||
sta (adrlo), y
|
||||
iny
|
||||
cpy secsize
|
||||
bne L15
|
||||
rts
|
||||
|
||||
; no tricks here, just the regular stuff
|
||||
|
||||
;=================
|
||||
; readadr -- read address field
|
||||
;=================
|
||||
; Find address field, put track in cutrk, sector in tmpsec
|
||||
readadr:
|
||||
mlsmc0C:lda $c0ec ; read data until we find a $D5
|
||||
bpl readadr
|
||||
adr_d5:
|
||||
cmp #$d5
|
||||
bne readadr
|
||||
|
||||
adr_aa:
|
||||
mlsmc0D:lda $c0ec ; read data until we find a $AA
|
||||
bpl adr_aa
|
||||
cmp #$aa
|
||||
bne adr_d5
|
||||
|
||||
adr_96:
|
||||
mlsmc0E:lda $c0ec ; read data until we find a $96
|
||||
bpl adr_96
|
||||
cmp #$96
|
||||
bne adr_d5
|
||||
|
||||
ldy #3 ; three?
|
||||
; first read volume/volume
|
||||
; then track/track
|
||||
; then sector/sector?
|
||||
adr_read_two_bytes:
|
||||
sta curtrk ; store out current track
|
||||
tax
|
||||
L20:
|
||||
mlsmc0F:lda $c0ec ; read until full value
|
||||
bpl L20
|
||||
rol
|
||||
sta tmpsec
|
||||
L21:
|
||||
mlsmc10:lda $c0ec ; read until full value
|
||||
bpl L21 ; sector value is (v1<<1)&v2????
|
||||
and tmpsec
|
||||
dey ; loop 3 times
|
||||
bne adr_read_two_bytes
|
||||
|
||||
seekret:
|
||||
rts ; return
|
||||
|
||||
;================
|
||||
; SEEK
|
||||
;================
|
||||
; current track in curtrk
|
||||
; desired track in phase
|
||||
|
||||
seek:
|
||||
asl curtrk ; multiply by 2
|
||||
asl phase ; multiply by 2
|
||||
lda #0
|
||||
sta step
|
||||
copy_cur:
|
||||
lda curtrk ; load current track
|
||||
sta tmptrk ; store as temptrk
|
||||
sec ; calc current-desired
|
||||
sbc phase
|
||||
beq seekret ; if they match, we are done!
|
||||
|
||||
bcs seek_neg ; if negative, skip ahead
|
||||
eor #$ff ; ones-complement the distance
|
||||
inc curtrk ; increment current (make it 2s comp?)
|
||||
bcc L114 ; skip ahead
|
||||
seek_neg:
|
||||
adc #$fe
|
||||
dec curtrk
|
||||
L114:
|
||||
cmp step
|
||||
bcc L115
|
||||
lda step
|
||||
L115:
|
||||
cmp #8
|
||||
bcs L116
|
||||
tay
|
||||
sec
|
||||
L116:
|
||||
lda curtrk
|
||||
ldx step1, y
|
||||
bne L118
|
||||
L117:
|
||||
clc
|
||||
lda tmptrk
|
||||
ldx step2, y
|
||||
L118:
|
||||
stx tmpsec
|
||||
and #3
|
||||
rol
|
||||
tax
|
||||
mlsmc11:sta $c0e0, x
|
||||
L119:
|
||||
ldx #$13
|
||||
L120:
|
||||
dex
|
||||
bne L120
|
||||
dec tmpsec
|
||||
bne L119
|
||||
lsr
|
||||
bcs L117
|
||||
inc step
|
||||
bne copy_cur
|
||||
.endif
|
||||
|
||||
|
||||
step1: .byte $01, $30, $28, $24, $20, $1e, $1d, $1c
|
||||
step2: .byte $70, $2c, $26, $22, $1f, $1e, $1d, $1c
|
||||
|
||||
sectbl: .byte $00,$0d,$0b,$09,$07,$05,$03,$01,$0e,$0c,$0a,$08,$06,$04,$02,$0f
|
||||
|
||||
|
||||
; From $BA96 of DOS33
|
||||
nibtbl: .res 128 ; = *
|
||||
; .byte $00,$01,$98,$99,$02,$03,$9C,$04 ; $BA96 ; 00
|
||||
; .byte $05,$06,$A0,$A1,$A2,$A4,$A4,$A5 ; $BA9E ; 08
|
||||
; .byte $07,$08,$A8,$A9,$AA,$09,$0A,$0B ; $BAA6 ; 10
|
||||
; .byte $0C,$0D,$B0,$B1,$0E,$0F,$10,$11 ; $BAAE ; 18
|
||||
; .byte $12,$13,$B8,$14,$15,$16,$17,$18 ; $BAB6 ; 20
|
||||
; .byte $19,$1A,$C0,$C1,$C2,$C3,$C4,$C5 ; $BABE ; 28
|
||||
; .byte $C6,$C7,$C8,$C9,$CA,$1B,$CC,$1C ; $BAC6 ; 30
|
||||
; .byte $1D,$1E,$D0,$D1,$D2,$1E,$D4,$D5 ; $BACE ; 38
|
||||
; .byte $20,$21,$D8,$22,$23,$24,$25,$26 ; $BAD6 ; 40
|
||||
; .byte $27,$28,$E0,$E1,$E2,$E3,$E4,$29 ; $BADE ; 48
|
||||
; .byte $2A,$2B,$E8,$2C,$2D,$2E,$2F,$30 ; $BAE6 ; 50
|
||||
; .byte $31,$32,$F0,$F1,$33,$34,$35,$36 ; $BAEE ; 58
|
||||
; .byte $37,$38,$F8,$39,$3A,$3B,$3C,$3D ; $BAF6 ; 60
|
||||
; .byte $3E,$3F,$13,$00,$01,$02,$01,$00 ; $BAFE ; 68
|
||||
; .byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
; .byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
|
||||
|
||||
bit2tbl: .res 86 ; = nibtbl+128
|
||||
filbuf: .res 4 ; = bit2tbl+86
|
||||
;dataend = filbuf+4
|
||||
|
||||
@ -153,8 +153,18 @@ DRAW_PAGE EQU $EE
|
||||
;FIRST EQU $F0
|
||||
LASTKEY EQU $F1
|
||||
;PADDLE_STATUS EQU $F2
|
||||
XPOS EQU $F3
|
||||
YPOS EQU $F4
|
||||
;XPOS EQU $F3
|
||||
;YPOS EQU $F4
|
||||
|
||||
|
||||
namlo = $f6
|
||||
namhi = $f7
|
||||
step = $f8 ; state for stepper motor
|
||||
tmptrk = $f9 ; temporary copy of current track
|
||||
phase = $fa ; current phase for /seek
|
||||
|
||||
|
||||
|
||||
TEMP EQU $FA
|
||||
;RUN EQU $FA
|
||||
;TEMP2 EQU $FB
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user