34 lines
385 B
ArmAsm
34 lines
385 B
ArmAsm
.define .sts
|
|
.define .sts4
|
|
.sect .text
|
|
.sect .rom
|
|
.sect .data
|
|
.sect .bss
|
|
|
|
! d0 : # bytes
|
|
! a0 : destination address
|
|
.sect .text
|
|
.sts:
|
|
move.l (sp)+,a1
|
|
move.w (sp)+,d0
|
|
ext.l d0
|
|
9:
|
|
move.l (sp)+,a0
|
|
cmp.l #1,d0
|
|
bne 1f
|
|
move.w (sp)+,d0
|
|
move.b d0,(a0)
|
|
bra 3f
|
|
1:
|
|
asr.l #1,d0
|
|
2:
|
|
move.w (sp)+,(a0)+
|
|
sub.l #1,d0
|
|
bgt 2b
|
|
3:
|
|
jmp (a1)
|
|
.sts4:
|
|
move.l (sp)+,a1
|
|
move.l (sp)+,d0
|
|
bra 9b
|