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screen.asm
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screen.asm
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SCN_GRID_ROW_00 = SCREEN + (9 * 32) + 10
SCN_GRID_ROW_01 = SCREEN + (10 * 32) + 10
SCN_GRID_ROW_02 = SCREEN + (11 * 32) + 10
SCN_GRID_ROW_03 = SCREEN + (12 * 32) + 10
SCN_GRID_ROW_04 = SCREEN + (13 * 32) + 10
SCN_GRID_ROW_05 = SCREEN + (14 * 32) + 10
SCN_TRACK_DRUM_00 = SCREEN + (9 * 32) + 4
SCN_TRACK_DRUM_01 = SCREEN + (10 * 32) + 4
SCN_TRACK_DRUM_02 = SCREEN + (11 * 32) + 4
SCN_TRACK_DRUM_03 = SCREEN + (12 * 32) + 4
SCN_TRACK_DRUM_04 = SCREEN + (13 * 32) + 4
SCN_TRACK_DRUM_05 = SCREEN + (14 * 32) + 4
SCN_TRIGGER_00 = SCREEN + (10 * 32) + 27
SCN_TRIGGER_01 = SCREEN + (11 * 32) + 28
SCN_TRIGGER_02 = SCREEN + (12 * 32) + 28
SCN_TRIGGER_03 = SCREEN + (13 * 32) + 28
SCN_TRIGGER_04 = SCREEN + (14 * 32) + 28
SCN_GRID_PATTERN = SCREEN + (7 * 32) + 12
SCN_GRID_SPEED = SCREEN + (7 * 32) + 17
SCN_GRID_SWING = SCREEN + (7 * 32) + 22
SCN_GRID_STEPS = SCREEN + (7 * 32) + 27
SCN_VOICEA_00 = SCREEN + (17 * 32) + 4
SCN_VOICEA_01 = SCREEN + (18 * 32) + 4
SCN_VOICEA_02 = SCREEN + (19 * 32) + 4
SCN_VOICEA_03 = SCREEN + (17 * 32) + 7
SCN_VOICEA_04 = SCREEN + (18 * 32) + 7
SCN_VOICEA_05 = SCREEN + (19 * 32) + 7
SCN_VOICEA_06 = SCREEN + (17 * 32) + 10
SCN_VOICEA_07 = SCREEN + (18 * 32) + 10
SCN_VOICEA_08 = SCREEN + (19 * 32) + 10
SCN_VOICEA_09 = SCREEN + (17 * 32) + 13
SCN_VOICEA_0A = SCREEN + (18 * 32) + 13
SCN_VOICEB_00 = SCREEN + (17 * 32) + 18
SCN_VOICEB_01 = SCREEN + (18 * 32) + 18
SCN_VOICEB_02 = SCREEN + (19 * 32) + 18
SCN_VOICEB_03 = SCREEN + (17 * 32) + 21
SCN_VOICEB_04 = SCREEN + (18 * 32) + 21
SCN_VOICEB_05 = SCREEN + (19 * 32) + 21
SCN_VOICEB_06 = SCREEN + (17 * 32) + 24
SCN_VOICEB_07 = SCREEN + (18 * 32) + 24
SCN_VOICEB_08 = SCREEN + (19 * 32) + 24
SCN_VOICEB_09 = SCREEN + (17 * 32) + 27
SCN_VOICEB_0A = SCREEN + (18 * 32) + 27
SCN_VOICEC_00 = SCREEN + (22 * 32) + 4
SCN_VOICEC_01 = SCREEN + (23 * 32) + 4
SCN_VOICEC_02 = SCREEN + (22 * 32) + 7
SCN_VOICEC_03 = SCREEN + (23 * 32) + 7
SCN_VOICEC_04 = SCREEN + (24 * 32) + 7
SCN_VOICEC_05 = SCREEN + (22 * 32) + 10
SCN_VOICEC_06 = SCREEN + (23 * 32) + 10
SCN_VOICED_00 = SCREEN + (22 * 32) + 14
SCN_VOICED_01 = SCREEN + (22 * 32) + 17
SCN_VOICED_02 = SCREEN + (23 * 32) + 17
SCN_VOICED_03 = SCREEN + (24 * 32) + 17
SCN_VOICED_04 = SCREEN + (22 * 32) + 20
SCN_VOICED_05 = SCREEN + (23 * 32) + 20
SCN_VOICED_06 = SCREEN + (24 * 32) + 20
SCN_VOICEE_00 = SCREEN + (22 * 32) + 24
SCN_VOICEE_01 = SCREEN + (23 * 32) + 24
SCN_VOICEE_02 = SCREEN + (24 * 32) + 24
SCN_VOICEE_03 = SCREEN + (22 * 32) + 27
SCN_VOICEE_04 = SCREEN + (23 * 32) + 27
SCN_DRUM_NUMBER = SCREEN + (26 * 32) + 5
SCN_DRUM_NAME = SCREEN + (26 * 32) + 11
SCN_DRUM_P1 = SCREEN + (26 * 32) + 16
SCN_DRUM_P2 = SCREEN + (26 * 32) + 21
SCN_DRUM_P3 = SCREEN + (26 * 32) + 26
SCN_COPY_INFO_00 = SCREEN + (4 * 32) + 4
SCN_COPY_INFO_01 = SCREEN + (5 * 32) + 4
SCN_SONG_NUMBER = SCREEN + (5 * 32) + 13
SCN_SONG_SPEED = SCREEN + (4 * 32) + 18
SCN_SONG_SWING = SCREEN + (5 * 32) + 18
SCN_SONG_BAR = SCREEN + (4 * 32) + 23
SCN_SONG_PATTERN = SCREEN + (5 * 32) + 23
SCN_SONG_LOOP_START = SCREEN + (4 * 32) + 28
SCN_SONG_LOOP_LENGTH = SCREEN + (5 * 32) + 28
process_DMA_queue:
ldx dmaProcessBuffer
cpx #$FF
bne :+
rts
: lda _processLo,x
sta processVector+0
lda _processHi,x
sta processVector+1
jmp (processVector)
rts
_processLo: .LOBYTES _dmaTrackDrum00,_dmaTrackDrum01,_dmaTrackDrum02
.LOBYTES _dmaTrackDrum03,_dmaTrackDrum04,_dmaTrackDrum05
.LOBYTES _dmaTrackDrumAll
.LOBYTES _dmaGridRow00,_dmaGridRow01,_dmaGridRow02
.LOBYTES _dmaGridRow03,_dmaGridRow04,_dmaGridRow05
.LOBYTES _dmaGridRowAll
.LOBYTES _dmaTrackDrumTop,_dmaTrackDrumBottom
.LOBYTES _dmaGridRowTop,_dmaGridRowBottom
.LOBYTES _dmaTriggerParameters
.LOBYTES _dmaGridPattern
.LOBYTES _dmaVoiceA,_dmaVoiceB,_dmaVoiceC,_dmaVoiceD,_dmaVoiceE
.LOBYTES _dmaDrumAux
.LOBYTES _dmaDrumAll
.LOBYTES _dmaCopyInfoAll
.LOBYTES _dmaSongAll
.LOBYTES _dmaSongSpeed,_dmaSongBar,_dmaSongLoop
.LOBYTES _dmaCopyInfoTop,_dmaCopyInfoBottom
_processHi: .HIBYTES _dmaTrackDrum00,_dmaTrackDrum01,_dmaTrackDrum02
.HIBYTES _dmaTrackDrum03,_dmaTrackDrum04,_dmaTrackDrum05
.HIBYTES _dmaTrackDrumAll
.HIBYTES _dmaGridRow00,_dmaGridRow01,_dmaGridRow02
.HIBYTES _dmaGridRow03,_dmaGridRow04,_dmaGridRow05
.HIBYTES _dmaGridRowAll
.HIBYTES _dmaTrackDrumTop,_dmaTrackDrumBottom
.HIBYTES _dmaGridRowTop,_dmaGridRowBottom
.HIBYTES _dmaTriggerParameters
.HIBYTES _dmaGridPattern
.HIBYTES _dmaVoiceA,_dmaVoiceB,_dmaVoiceC,_dmaVoiceD,_dmaVoiceE
.HIBYTES _dmaDrumAux
.HIBYTES _dmaDrumAll
.HIBYTES _dmaCopyInfoAll
.HIBYTES _dmaSongAll
.HIBYTES _dmaSongSpeed,_dmaSongBar,_dmaSongLoop
.HIBYTES _dmaCopyInfoTop,_dmaCopyInfoBottom
_dmaSongAll:
lda #>SCN_SONG_NUMBER
sta $2006
lda #<SCN_SONG_NUMBER
sta $2006
lda scnSongBuffer+$00
sta $2007
lda scnSongBuffer+$01
sta $2007
jsr _dmaSongBar
jsr _dmaSongLoop
_dmaSongSpeed:
lda #>SCN_SONG_SPEED
sta $2006
lda #<SCN_SONG_SPEED
sta $2006
lda scnSongBuffer+$02
sta $2007
lda scnSongBuffer+$03
sta $2007
lda #>SCN_SONG_SWING
sta $2006
lda #<SCN_SONG_SWING
sta $2006
lda scnSongBuffer+$04
sta $2007
lda scnSongBuffer+$05
sta $2007
rts
_dmaSongLoop:
lda #>SCN_SONG_LOOP_START
sta $2006
lda #<SCN_SONG_LOOP_START
sta $2006
lda scnSongBuffer+$06
sta $2007
lda scnSongBuffer+$07
sta $2007
lda #>SCN_SONG_LOOP_LENGTH
sta $2006
lda #<SCN_SONG_LOOP_LENGTH
sta $2006
lda scnSongBuffer+$08
sta $2007
lda scnSongBuffer+$09
sta $2007
rts
_dmaSongBar:
lda #>SCN_SONG_BAR
sta $2006
lda #<SCN_SONG_BAR
sta $2006
lda scnSongBuffer+$0A
sta $2007
lda scnSongBuffer+$0B
sta $2007
lda #>SCN_SONG_PATTERN
sta $2006
lda #<SCN_SONG_PATTERN
sta $2006
lda scnSongBuffer+$0C
sta $2007
lda scnSongBuffer+$0D
sta $2007
rts
_dmaCopyInfoAll:
jsr _dmaCopyInfoTop
jsr _dmaCopyInfoBottom
rts
_dmaCopyInfoTop:
lda #>SCN_COPY_INFO_00
sta $2006
lda #<SCN_COPY_INFO_00
sta $2006
lda scnCopyInfoBuffer+0
sta $2007
lda scnCopyInfoBuffer+1
sta $2007
lda scnCopyInfoBuffer+2
sta $2007
lda scnCopyInfoBuffer+3
sta $2007
lda scnCopyInfoBuffer+4
sta $2007
lda scnCopyInfoBuffer+5
sta $2007
rts
_dmaCopyInfoBottom:
lda #>SCN_COPY_INFO_01
sta $2006
lda #<SCN_COPY_INFO_01
sta $2006
lda scnCopyInfoBuffer+6
sta $2007
lda scnCopyInfoBuffer+7
sta $2007
lda scnCopyInfoBuffer+8
sta $2007
lda scnCopyInfoBuffer+9
sta $2007
lda scnCopyInfoBuffer+10
sta $2007
lda scnCopyInfoBuffer+11
sta $2007
rts
_dmaDrumAll:
jsr _dmaVoiceA
jsr _dmaVoiceB
jsr _dmaVoiceC
jsr _dmaVoiceD
jsr _dmaVoiceE
jsr _dmaDrumAux
rts
_dmaDrumAux: lda #>SCN_DRUM_NUMBER
sta $2006
lda #<SCN_DRUM_NUMBER
sta $2006
lda scnDrumAuxBuffer + 0
sta $2007
lda scnDrumAuxBuffer + 1
sta $2007
lda #>SCN_DRUM_NAME
sta $2006
lda #<SCN_DRUM_NAME
sta $2006
lda scnDrumAuxBuffer + 2
sta $2007
lda scnDrumAuxBuffer + 3
sta $2007
lda scnDrumAuxBuffer + 4
sta $2007
lda #>SCN_DRUM_P1
sta $2006
lda #<SCN_DRUM_P1
sta $2006
lda scnDrumAuxBuffer + 5
sta $2007
lda scnDrumAuxBuffer + 6
sta $2007
lda scnDrumAuxBuffer + 7
sta $2007
lda #>SCN_DRUM_P2
sta $2006
lda #<SCN_DRUM_P2
sta $2006
lda scnDrumAuxBuffer + 8
sta $2007
lda scnDrumAuxBuffer + 9
sta $2007
lda scnDrumAuxBuffer + 10
sta $2007
lda #>SCN_DRUM_P3
sta $2006
lda #<SCN_DRUM_P3
sta $2006
lda scnDrumAuxBuffer + 11
sta $2007
lda scnDrumAuxBuffer + 12
sta $2007
lda scnDrumAuxBuffer + 13
sta $2007
rts
_dmaVoiceA: lda #>SCN_VOICEA_00
sta $2006
lda #<SCN_VOICEA_00
sta $2006
lda scnVoiceABuffer + 0
sta $2007
lda scnVoiceABuffer + 1
sta $2007
lda #>SCN_VOICEA_01
sta $2006
lda #<SCN_VOICEA_01
sta $2006
lda scnVoiceABuffer + 2
sta $2007
lda scnVoiceABuffer + 3
sta $2007
lda #>SCN_VOICEA_02
sta $2006
lda #<SCN_VOICEA_02
sta $2006
lda scnVoiceABuffer + 4
sta $2007
lda scnVoiceABuffer + 5
sta $2007
lda #>SCN_VOICEA_03
sta $2006
lda #<SCN_VOICEA_03
sta $2006
lda scnVoiceABuffer + 6
sta $2007
lda scnVoiceABuffer + 7
sta $2007
lda #>SCN_VOICEA_04
sta $2006
lda #<SCN_VOICEA_04
sta $2006
lda scnVoiceABuffer + 8
sta $2007
lda scnVoiceABuffer + 9
sta $2007
lda #>SCN_VOICEA_05
sta $2006
lda #<SCN_VOICEA_05
sta $2006
lda scnVoiceABuffer + 10
sta $2007
lda scnVoiceABuffer + 11
sta $2007
lda #>SCN_VOICEA_06
sta $2006
lda #<SCN_VOICEA_06
sta $2006
lda scnVoiceABuffer + 12
sta $2007
lda scnVoiceABuffer + 13
sta $2007
lda #>SCN_VOICEA_07
sta $2006
lda #<SCN_VOICEA_07
sta $2006
lda scnVoiceABuffer + 14
sta $2007
lda scnVoiceABuffer + 15
sta $2007
lda #>SCN_VOICEA_08
sta $2006
lda #<SCN_VOICEA_08
sta $2006
lda scnVoiceABuffer + 16
sta $2007
lda scnVoiceABuffer + 17
sta $2007
lda #>SCN_VOICEA_09
sta $2006
lda #<SCN_VOICEA_09
sta $2006
lda scnVoiceABuffer + 18
sta $2007
lda scnVoiceABuffer + 19
sta $2007
lda #>SCN_VOICEA_0A
sta $2006
lda #<SCN_VOICEA_0A
sta $2006
lda scnVoiceABuffer + 20
sta $2007
lda scnVoiceABuffer + 21
sta $2007
rts
_dmaVoiceB: lda #>SCN_VOICEB_00
sta $2006
lda #<SCN_VOICEB_00
sta $2006
lda scnVoiceBBuffer + 0
sta $2007
lda scnVoiceBBuffer + 1
sta $2007
lda #>SCN_VOICEB_01
sta $2006
lda #<SCN_VOICEB_01
sta $2006
lda scnVoiceBBuffer + 2
sta $2007
lda scnVoiceBBuffer + 3
sta $2007
lda #>SCN_VOICEB_02
sta $2006
lda #<SCN_VOICEB_02
sta $2006
lda scnVoiceBBuffer + 4
sta $2007
lda scnVoiceBBuffer + 5
sta $2007
lda #>SCN_VOICEB_03
sta $2006
lda #<SCN_VOICEB_03
sta $2006
lda scnVoiceBBuffer + 6
sta $2007
lda scnVoiceBBuffer + 7
sta $2007
lda #>SCN_VOICEB_04
sta $2006
lda #<SCN_VOICEB_04
sta $2006
lda scnVoiceBBuffer + 8
sta $2007
lda scnVoiceBBuffer + 9
sta $2007
lda #>SCN_VOICEB_05
sta $2006
lda #<SCN_VOICEB_05
sta $2006
lda scnVoiceBBuffer + 10
sta $2007
lda scnVoiceBBuffer + 11
sta $2007
lda #>SCN_VOICEB_06
sta $2006
lda #<SCN_VOICEB_06
sta $2006
lda scnVoiceBBuffer + 12
sta $2007
lda scnVoiceBBuffer + 13
sta $2007
lda #>SCN_VOICEB_07
sta $2006
lda #<SCN_VOICEB_07
sta $2006
lda scnVoiceBBuffer + 14
sta $2007
lda scnVoiceBBuffer + 15
sta $2007
lda #>SCN_VOICEB_08
sta $2006
lda #<SCN_VOICEB_08
sta $2006
lda scnVoiceBBuffer + 16
sta $2007
lda scnVoiceBBuffer + 17
sta $2007
lda #>SCN_VOICEB_09
sta $2006
lda #<SCN_VOICEB_09
sta $2006
lda scnVoiceBBuffer + 18
sta $2007
lda scnVoiceBBuffer + 19
sta $2007
lda #>SCN_VOICEB_0A
sta $2006
lda #<SCN_VOICEB_0A
sta $2006
lda scnVoiceBBuffer + 20
sta $2007
lda scnVoiceBBuffer + 21
sta $2007
rts
_dmaVoiceC: lda #>SCN_VOICEC_00
sta $2006
lda #<SCN_VOICEC_00
sta $2006
lda scnVoiceCBuffer + 0
sta $2007
lda scnVoiceCBuffer + 1
sta $2007
lda #>SCN_VOICEC_01
sta $2006
lda #<SCN_VOICEC_01
sta $2006
lda scnVoiceCBuffer + 2
sta $2007
lda scnVoiceCBuffer + 3
sta $2007
lda #>SCN_VOICEC_02
sta $2006
lda #<SCN_VOICEC_02
sta $2006
lda scnVoiceCBuffer + 4
sta $2007
lda scnVoiceCBuffer + 5
sta $2007
lda #>SCN_VOICEC_03
sta $2006
lda #<SCN_VOICEC_03
sta $2006
lda scnVoiceCBuffer + 6
sta $2007
lda scnVoiceCBuffer + 7
sta $2007
lda #>SCN_VOICEC_04
sta $2006
lda #<SCN_VOICEC_04
sta $2006
lda scnVoiceCBuffer + 8
sta $2007
lda scnVoiceCBuffer + 9
sta $2007
lda #>SCN_VOICEC_05
sta $2006
lda #<SCN_VOICEC_05
sta $2006
lda scnVoiceCBuffer + 10
sta $2007
lda scnVoiceCBuffer + 11
sta $2007
lda #>SCN_VOICEC_06
sta $2006
lda #<SCN_VOICEC_06
sta $2006
lda scnVoiceCBuffer + 12
sta $2007
lda scnVoiceCBuffer + 13
sta $2007
rts
_dmaVoiceD: lda #>SCN_VOICED_00
sta $2006
lda #<SCN_VOICED_00
sta $2006
lda scnVoiceDBuffer + 0
sta $2007
lda scnVoiceDBuffer + 1
sta $2007
lda #>SCN_VOICED_01
sta $2006
lda #<SCN_VOICED_01
sta $2006
lda scnVoiceDBuffer + 2
sta $2007
lda scnVoiceDBuffer + 3
sta $2007
lda #>SCN_VOICED_02
sta $2006
lda #<SCN_VOICED_02
sta $2006
lda scnVoiceDBuffer + 4
sta $2007
lda scnVoiceDBuffer + 5
sta $2007
lda #>SCN_VOICED_03
sta $2006
lda #<SCN_VOICED_03
sta $2006
lda scnVoiceDBuffer + 6
sta $2007
lda scnVoiceDBuffer + 7
sta $2007
lda #>SCN_VOICED_04
sta $2006
lda #<SCN_VOICED_04
sta $2006
lda scnVoiceDBuffer + 8
sta $2007
lda scnVoiceDBuffer + 9
sta $2007
lda #>SCN_VOICED_05
sta $2006
lda #<SCN_VOICED_05
sta $2006
lda scnVoiceDBuffer + 10
sta $2007
lda scnVoiceDBuffer + 11
sta $2007
lda #>SCN_VOICED_06
sta $2006
lda #<SCN_VOICED_06
sta $2006
lda scnVoiceDBuffer + 12
sta $2007
lda scnVoiceDBuffer + 13
sta $2007
rts
_dmaVoiceE: lda #>SCN_VOICEE_00
sta $2006
lda #<SCN_VOICEE_00
sta $2006
lda scnVoiceEBuffer + 0
sta $2007
lda scnVoiceEBuffer + 1
sta $2007
lda #>SCN_VOICEE_01
sta $2006
lda #<SCN_VOICEE_01
sta $2006
lda scnVoiceEBuffer + 2
sta $2007
lda scnVoiceEBuffer + 3
sta $2007
lda #>SCN_VOICEE_02
sta $2006
lda #<SCN_VOICEE_02
sta $2006
lda scnVoiceEBuffer + 4
sta $2007
lda scnVoiceEBuffer + 5
sta $2007
lda #>SCN_VOICEE_03
sta $2006
lda #<SCN_VOICEE_03
sta $2006
lda scnVoiceEBuffer + 6
sta $2007
lda scnVoiceEBuffer + 7
sta $2007
lda #>SCN_VOICEE_04
sta $2006
lda #<SCN_VOICEE_04
sta $2006
lda scnVoiceEBuffer + 8
sta $2007
lda scnVoiceEBuffer + 9
sta $2007
rts
_dmaGridPattern:
lda #>SCN_GRID_PATTERN
sta $2006
lda #<SCN_GRID_PATTERN
sta $2006
lda scnGridPatternBuffer + 0
sta $2007
lda scnGridPatternBuffer + 1
sta $2007
lda #>SCN_GRID_SPEED
sta $2006
lda #<SCN_GRID_SPEED
sta $2006
lda scnGridPatternBuffer + 2
sta $2007
lda scnGridPatternBuffer + 3
sta $2007
lda #>SCN_GRID_SWING
sta $2006
lda #<SCN_GRID_SWING
sta $2006
lda scnGridPatternBuffer + 4
sta $2007
lda scnGridPatternBuffer + 5
sta $2007
lda #>SCN_GRID_STEPS
sta $2006
lda #<SCN_GRID_STEPS
sta $2006
lda scnGridPatternBuffer + 6
sta $2007
lda scnGridPatternBuffer + 7
sta $2007
rts
_dmaTriggerParameters:
lda #>SCN_TRIGGER_00
sta $2006
lda #<SCN_TRIGGER_00
sta $2006
lda scnTriggerBuffer + 0
sta $2007
lda scnTriggerBuffer + 1
sta $2007
lda scnTriggerBuffer + 2
sta $2007
lda #>SCN_TRIGGER_01
sta $2006
lda #<SCN_TRIGGER_01
sta $2006
lda scnTriggerBuffer + 3
sta $2007
lda scnTriggerBuffer + 4
sta $2007
lda #>SCN_TRIGGER_02
sta $2006
lda #<SCN_TRIGGER_02
sta $2006
lda scnTriggerBuffer + 5
sta $2007
lda scnTriggerBuffer + 6
sta $2007
lda #>SCN_TRIGGER_03
sta $2006
lda #<SCN_TRIGGER_03
sta $2006
lda scnTriggerBuffer + 7
sta $2007
lda scnTriggerBuffer + 8
sta $2007
lda #>SCN_TRIGGER_04
sta $2006
lda #<SCN_TRIGGER_04
sta $2006
lda scnTriggerBuffer + 9
sta $2007
lda scnTriggerBuffer + 10
sta $2007
rts
_dmaTrackDrumAll:
jsr _dmaTrackDrum00
jsr _dmaTrackDrum01
jsr _dmaTrackDrum02
jsr _dmaTrackDrum03
jsr _dmaTrackDrum04
jmp _dmaTrackDrum05
_dmaTrackDrumTop:
jsr _dmaTrackDrum00
jsr _dmaTrackDrum01
jmp _dmaTrackDrum02
_dmaTrackDrumBottom:
jsr _dmaTrackDrum03
jsr _dmaTrackDrum04
jmp _dmaTrackDrum05
_dmaTrackDrum00:
lda #>SCN_TRACK_DRUM_00
sta $2006
lda #<SCN_TRACK_DRUM_00
sta $2006
lda scnTrackDrumBuffer + (0 * 4) + 0
sta $2007
lda scnTrackDrumBuffer + (0 * 4) + 1
sta $2007
lda #$FC
sta $2007
lda scnTrackDrumBuffer + (0 * 4) + 2
sta $2007
lda scnTrackDrumBuffer + (0 * 4) + 3
sta $2007
rts
_dmaTrackDrum01:
lda #>SCN_TRACK_DRUM_01
sta $2006
lda #<SCN_TRACK_DRUM_01
sta $2006
lda scnTrackDrumBuffer + (1 * 4) + 0
sta $2007
lda scnTrackDrumBuffer + (1 * 4) + 1
sta $2007
lda #$FC
sta $2007
lda scnTrackDrumBuffer + (1 * 4) + 2
sta $2007
lda scnTrackDrumBuffer + (1 * 4) + 3
sta $2007
rts
_dmaTrackDrum02:
lda #>SCN_TRACK_DRUM_02
sta $2006
lda #<SCN_TRACK_DRUM_02
sta $2006
lda scnTrackDrumBuffer + (2 * 4) + 0
sta $2007
lda scnTrackDrumBuffer + (2 * 4) + 1
sta $2007
lda #$FC
sta $2007
lda scnTrackDrumBuffer + (2 * 4) + 2
sta $2007
lda scnTrackDrumBuffer + (2 * 4) + 3
sta $2007
rts
_dmaTrackDrum03:
lda #>SCN_TRACK_DRUM_03
sta $2006
lda #<SCN_TRACK_DRUM_03
sta $2006
lda scnTrackDrumBuffer + (3 * 4) + 0
sta $2007
lda scnTrackDrumBuffer + (3 * 4) + 1
sta $2007
lda #$FC
sta $2007
lda scnTrackDrumBuffer + (3 * 4) + 2
sta $2007
lda scnTrackDrumBuffer + (3 * 4) + 3
sta $2007
rts
_dmaTrackDrum04:
lda #>SCN_TRACK_DRUM_04
sta $2006
lda #<SCN_TRACK_DRUM_04
sta $2006
lda scnTrackDrumBuffer + (4 * 4) + 0
sta $2007
lda scnTrackDrumBuffer + (4 * 4) + 1
sta $2007
lda #$FC
sta $2007
lda scnTrackDrumBuffer + (4 * 4) + 2
sta $2007
lda scnTrackDrumBuffer + (4 * 4) + 3
sta $2007
rts
_dmaTrackDrum05:
lda #>SCN_TRACK_DRUM_05
sta $2006
lda #<SCN_TRACK_DRUM_05
sta $2006
lda scnTrackDrumBuffer + (5 * 4) + 0
sta $2007
lda scnTrackDrumBuffer + (5 * 4) + 1
sta $2007
lda #$FC
sta $2007
lda scnTrackDrumBuffer + (5 * 4) + 2
sta $2007
lda scnTrackDrumBuffer + (5 * 4) + 3
sta $2007
rts
_dmaGridRowAll:
jsr _dmaGridRow00
jsr _dmaGridRow01
jsr _dmaGridRow02
jsr _dmaGridRow03
jsr _dmaGridRow04
jmp _dmaGridRow05
_dmaGridRowTop:
jsr _dmaGridRow00
jsr _dmaGridRow01
jmp _dmaGridRow02
_dmaGridRowBottom:
jsr _dmaGridRow03
jsr _dmaGridRow04
jmp _dmaGridRow05
_dmaGridRow00: lda #>SCN_GRID_ROW_00
sta $2006
lda #<SCN_GRID_ROW_00
sta $2006
.REPEAT 16,i
lda scnGridBuffer + (0 * 16) +i
sta $2007
.ENDREPEAT
rts
_dmaGridRow01: lda #>SCN_GRID_ROW_01
sta $2006
lda #<SCN_GRID_ROW_01
sta $2006
.REPEAT 16,i
lda scnGridBuffer + (1 * 16) +i
sta $2007
.ENDREPEAT
rts
_dmaGridRow02: lda #>SCN_GRID_ROW_02
sta $2006
lda #<SCN_GRID_ROW_02
sta $2006
.REPEAT 16,i
lda scnGridBuffer + (2 * 16) +i
sta $2007
.ENDREPEAT
rts
_dmaGridRow03: lda #>SCN_GRID_ROW_03
sta $2006
lda #<SCN_GRID_ROW_03
sta $2006
.REPEAT 16,i
lda scnGridBuffer + (3 * 16) +i
sta $2007
.ENDREPEAT
rts
_dmaGridRow04: lda #>SCN_GRID_ROW_04
sta $2006
lda #<SCN_GRID_ROW_04
sta $2006
.REPEAT 16,i