Created
August 31, 2011 00:17
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periods.sna source code (minus the actual sample data)
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.memorymap | |
defaultslot 0 | |
slotsize $8000 | |
slot 0 $8000 | |
slotsize $4000 | |
slot 1 $4000 | |
.endme | |
.rombankmap | |
bankstotal 2 | |
banksize $4000 | |
banks 1 | |
banksize $8000 | |
banks 1 | |
.endro | |
.bank 0 slot 1 | |
.orga $4000 | |
.db $FF | |
.bank 1 slot 0 | |
.orga $8000 | |
di | |
ld sp,$FFFF | |
jp start | |
.section "start" | |
start: | |
; Clear the screen | |
ld hl,$4000 | |
ld (hl),$00 | |
ld de,$4001 | |
ld bc,$1FFF | |
ldir | |
ld hl,$5800 | |
ld (hl),$0F | |
ld de,$5801 | |
ld bc,$07FF | |
ldir | |
ld a,%11111111 | |
out ($FE),a | |
ld ix, choon1 | |
ld iy, choons | |
ld hl,$0000 | |
main_driver: | |
ld bc,$0010 | |
ld e,(ix+1) | |
exx | |
ld d,(iy+0) | |
ld e,0 | |
ex de,hl | |
ld d,$01 | |
exx | |
--: | |
push de | |
ld d,$00 | |
ld e,(ix+0) | |
sla e | |
rl d | |
sla e | |
rl d | |
sla e | |
rl d | |
sla e | |
rl d | |
add hl,de | |
pop de | |
dec d | |
jr nz,+ | |
inc e | |
ld a,e | |
cp $C0 | |
jr nz,+ | |
ld e,$40 | |
+: | |
ld a,h | |
cp e | |
sbc a,a | |
exx | |
ld e,a | |
rlc (hl) | |
sbc a,a | |
or e | |
;ld a,e | |
rlc d | |
jr nc,+ | |
inc l | |
jr nz,+ | |
ld h,smpno>>8 | |
+: | |
exx | |
out ($FE),a | |
djnz -- | |
dec c | |
jr nz,-- | |
inc ixl | |
inc ixl | |
inc iyl | |
ld a,ixl | |
and $7F | |
ld ixl,a | |
ld a,iyl | |
and $7F | |
ld iyl,a | |
jp main_driver | |
.ends | |
.section "choon1" align 256 | |
choon1: | |
.db $40,$40 | |
.db $30,$40 | |
.db $38,$40 | |
.db $40,$40 | |
.db $40,$50 | |
.db $4C,$40 | |
.db $4C,$50 | |
.db $48,$40 | |
.db $48,$50 | |
.db $40,$40 | |
.db $38,$40 | |
.db $38,$50 | |
.db $38,$60 | |
.db $38,$70 | |
.db $38,$80 | |
.db $38,$90 | |
; | |
.db $44,$40 | |
.db $33,$40 | |
.db $3D,$40 | |
.db $44,$40 | |
.db $44,$50 | |
.db $56,$40 | |
.db $56,$50 | |
.db $52,$40 | |
.db $52,$50 | |
.db $53,$60 | |
.db $54,$70 | |
.db $55,$80 | |
.db $56,$90 | |
.db $56,$A0 | |
.db $56,$B0 | |
.db $56,$40 | |
; | |
.db $40,$40 | |
.db $30,$40 | |
.db $38,$40 | |
.db $40,$40 | |
.db $40,$50 | |
.db $60,$40 | |
.db $60,$50 | |
.db $64,$40 | |
.db $64,$50 | |
.db $4C,$40 | |
.db $40,$40 | |
.db $40,$50 | |
.db $40,$60 | |
.db $40,$70 | |
.db $40,$40 | |
.db $3C,$90 | |
; | |
.db $3A,$40 | |
.db $38,$40 | |
.db $3A,$40 | |
.db $30,$40 | |
.db $34,$40 | |
.db $48,$40 | |
.db $48,$50 | |
.db $40,$40 | |
.db $40,$50 | |
.db $40,$60 | |
.db $40,$70 | |
.db $40,$80 | |
.db $40,$90 | |
.db $40,$A0 | |
.db $40,$B0 | |
.db $40,$40 | |
.ends | |
.section "choons" align 256 | |
choons: | |
.db smp_k>>8 | |
.db smpno>>8 | |
.db smp_s>>8 | |
.db smpno>>8 | |
.db smp_k>>8 | |
.db smpno>>8 | |
.db smp_s>>8 | |
.db smpno>>8 | |
.db smp_k>>8 | |
.db smpno>>8 | |
.db smp_s>>8 | |
.db smpno>>8 | |
.db smp_k>>8 | |
.db smp_s>>8 | |
.db smp_s>>8 | |
.db smpno>>8 | |
; | |
.db smp_k>>8 | |
.db smpno>>8 | |
.db smp_s>>8 | |
.db smpno>>8 | |
.db smp_k>>8 | |
.db smpno>>8 | |
.db smp_s>>8 | |
.db smpno>>8 | |
.db smp_k>>8 | |
.db smpno>>8 | |
.db smp_s>>8 | |
.db smp_k>>8 | |
.db smp_k>>8 | |
.db smp_s>>8 | |
.db smpno>>8 | |
.db smp_s>>8 | |
; | |
.db smp_k>>8 | |
.db smp_k>>8 | |
.db smp_s>>8 | |
.db smpno>>8 | |
.db smp_k>>8 | |
.db smpno>>8 | |
.db smp_s>>8 | |
.db smpno>>8 | |
.db smp_k>>8 | |
.db smpno>>8 | |
.db smp_s>>8 | |
.db smpno>>8 | |
.db smp_k>>8 | |
.db smp_s>>8 | |
.db smp_s>>8 | |
.db smpno>>8 | |
; | |
.db smp_k>>8 | |
.db smpno>>8 | |
.db smp_s>>8 | |
.db smpno>>8 | |
.db smp_k>>8 | |
.db smpno>>8 | |
.db smp_s>>8 | |
.db smpno>>8 | |
.db smp_k>>8 | |
.db smpno>>8 | |
.db smp_s>>8 | |
.db smp_k>>8 | |
.db smp_k>>8 | |
.db smp_s>>8 | |
.db smp_s>>8 | |
.db smp_s>>8 | |
; | |
.db smp_k>>8 | |
.db smp_h>>8 | |
.db smp_s>>8 | |
.db smp_h>>8 | |
.db smp_k>>8 | |
.db smp_h>>8 | |
.db smp_s>>8 | |
.db smp_h>>8 | |
.db smp_k>>8 | |
.db smp_h>>8 | |
.db smp_s>>8 | |
.db smp_h>>8 | |
.db smp_k>>8 | |
.db smp_k>>8 | |
.db smp_s>>8 | |
.db smp_k>>8 | |
; | |
.db smp_k>>8 | |
.db smp_h>>8 | |
.db smp_s>>8 | |
.db smp_h>>8 | |
.db smp_k>>8 | |
.db smp_h>>8 | |
.db smp_s>>8 | |
.db smp_h>>8 | |
.db smp_k>>8 | |
.db smp_h>>8 | |
.db smp_s>>8 | |
.db smp_h>>8 | |
.db smp_k>>8 | |
.db smp_k>>8 | |
.db smp_s>>8 | |
.db smp_k>>8 | |
; | |
.db smp_k>>8 | |
.db smp_h>>8 | |
.db smp_s>>8 | |
.db smp_h>>8 | |
.db smp_k>>8 | |
.db smp_h>>8 | |
.db smp_s>>8 | |
.db smp_h>>8 | |
.db smp_k>>8 | |
.db smp_h>>8 | |
.db smp_s>>8 | |
.db smp_h>>8 | |
.db smp_k>>8 | |
.db smp_k>>8 | |
.db smp_s>>8 | |
.db smp_k>>8 | |
; | |
.db smp_k>>8 | |
.db smp_h>>8 | |
.db smp_s>>8 | |
.db smp_h>>8 | |
.db smp_k>>8 | |
.db smp_h>>8 | |
.db smp_s>>8 | |
.db smp_h>>8 | |
.db smp_k>>8 | |
.db smp_h>>8 | |
.db smp_s>>8 | |
.db smp_h>>8 | |
.db smp_k>>8 | |
.db smp_s>>8 | |
.db smp_s>>8 | |
.db smp_s>>8 | |
.ends | |
.section "smp_empty" align 256 | |
smpno: | |
.dsb 256 $00 | |
.ends | |
.section "smp_k" align 256 | |
smp_k: | |
.incbin "kick.1bt" | |
.ends | |
.section "smp_s" align 256 | |
smp_s: | |
.incbin "snare.1bt" | |
.ends | |
.section "smp_h" align 256 | |
smp_h: | |
.incbin "hihat.1bt" | |
.ends | |
.orga $FFFE | |
.dw $8000 | |
; EOF. |
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