ack/mach/m68k2/libsys/signal.s

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ArmAsm
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.define _signal
.extern _signal
NSIG=32
_signal:
move.w 4(sp), d0
ext.l d0
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cmp.l #NSIG,d0
bcc 1f
move.l 6(sp),d1
move.l d0,a0
add.l a0,a0
add.l a0,a0
add.l #dvect,a0
move.l (a0),a1
move.l d1,(a0)
beq 2f
btst #0,d1
bne 2f
move.l #jmptab,d1
add.l d0,d1
add.l d0,d1
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2:
move.l d0,a0
move.w #0x30,d0
trap #0
bcs 3f
btst #0,d0
bne 4f
move.l a1,d0
4:
clr.l d1
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rts
1:
move.l #22,d0
3:
jmp cerror
jmptab: bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
bsr enter
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enter:
movem.l d0/d1/a0/a1,-(sp)
move.l 16(sp),d0
sub.l #jmptab+2,d0
asr.l #1,d0
move.l d0,-(sp)
move.l d0,a0
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add.l a0,a0
add.l a0,a0
add.l #dvect,a0
move.l (a0),a0
jsr (a0)
add.l #4,sp
movem.l (sp)+,d0/d1/a0/a1
add.l #4,sp
rtr
.bss
dvect: .space 4*NSIG