ack/mach/m68k2/libem/cmp.s

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.define .cmp
.sect .text
.sect .rom
.sect .data
.sect .bss
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.sect .text
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.cmp:
move.l (sp)+,a0 ! return address
move.l #1,d1
move.l (sp)+,d0
cmp.l (sp)+,d0
bne 1f
clr d1
1:
bcs 2f
neg d1
2:
jmp (a0)