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Amiga Format CD 42
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Amiga Format AFCD42 (Issue 126, Aug 1999).iso
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-serious-
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sound
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scope_xt4
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src
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dummysprites.i
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1999-05-14
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701b
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24 lines
*************************************************************************
*****************DUMMY SPRITES*******************************************
*************************************************************************
* sprites are switched off by pointing to empty chipmem
* input registers: a0 - address of copperlist (ds.w 32)
* registers used: d0,d1,d2,a0
*************************************************************************
dummysprites
move.l #dummy_sprite,d1
move #spr0pth,d0
moveq #7,d2
.loop move d0,(a0)+ ;sprXpth
swap d1 ;higher word first
move d1,(a0)+
addq #2,d0
move d0,(a0)+ ;sprXptl
swap d1 ;lower word
move d1,(a0)+
addq #2,d0
dbf d2,.loop
rts