35 lines
431 B
ArmAsm
35 lines
431 B
ArmAsm
|
.define .sts
|
||
|
|
.sect .text
|
||
|
|
.sect .rom
|
||
|
|
.sect .data
|
||
|
|
.sect .bss
|
||
|
|
|
||
|
|
! d0 : # bytes
|
||
|
|
! a0 : destination address
|
||
|
|
! a1 : return address
|
||
|
|
.sect .text
|
||
|
|
.sts:
|
||
|
|
move.l (sp)+, a1
|
||
|
|
move.l (sp)+, d0
|
||
|
|
move.l (sp)+, a0
|
||
|
|
cmp.l #1, d0
|
||
|
|
bne 1f
|
||
|
|
move.l (sp)+, d0
|
||
|
|
move.b d0, (a0)
|
||
|
|
bra 4f
|
||
|
|
|
||
|
|
1: cmp.l #2, d0
|
||
|
|
bne 2f
|
||
|
|
move.l (sp)+, d0
|
||
|
|
move.w d0, (a0)
|
||
|
|
bra 4f
|
||
|
|
2:
|
||
|
|
asr.l #2, d0
|
||
|
|
sub.l #1, d0
|
||
|
|
3:
|
||
|
|
move.l (sp)+, (a0)+
|
||
|
|
dbf d0, 3b
|
||
|
|
4:
|
||
|
|
jmp (a1) ! return
|
||
|
|
.align 2
|