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