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77 lines
1.2 KiB
ArmAsm
77 lines
1.2 KiB
ArmAsm
include "includes.i"
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xdef StartMusic
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StartMusic:
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.wait: ; In case there is currently fade in progress
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jsr WaitVerticalBlank
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jsr PlayNextSound
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cmp.w #0,P61_Master
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beq .skip
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cmp.w #64,P61_Master
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blt .wait
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cmp.w currentModule,d0
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beq .skip
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cmp.w #-1,currentModule
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beq .fadeComplete
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.fadeOutMusic:
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cmp.w #0,P61_Master
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beq .fadeComplete
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sub.w #1,P61_Master
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jsr WaitVerticalBlank
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jsr PlayNextSound
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bra .fadeOutMusic
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.fadeComplete:
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move.w d0,currentModule
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movem.l d0-a6,-(sp)
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move.w d0,-(sp)
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jsr P61_End
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move.w (sp)+,d0
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lea module,a0
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lea modules,a1
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lsl.w #3,d0
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adda.w d0,a1
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move.l (a1)+,d0
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move.l (a1),a1
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jsr LoadDiskData
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lea module,a0
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sub.l a1,a1
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sub.l a2,a2
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moveq #0,d0
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move.w #64,P61_Master
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jsr P61_Init
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movem.l (sp)+,d0-a6
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.skip:
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rts
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currentModule:
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dc.w -1
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modules:
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dc.l enddiskmoduleA-diskmoduleA
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dc.l diskmoduleA
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dc.l enddiskmoduleB-diskmoduleB
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dc.l diskmoduleB
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dc.l enddiskmoduleC-diskmoduleC
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dc.l diskmoduleC
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section .bss
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module:
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ds.b MAX_P61_SIZE
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ds.b 512
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section .noload
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moduleDiskData:
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P61Module A,"assets/P61.jmd-songA"
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P61Module B,"assets/P61.jmd-songB"
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P61Module C,"assets/P61.jmd-songC"
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