35 lines
399 B
ArmAsm
35 lines
399 B
ArmAsm
.define .inn
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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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! d0 : set size in bytes
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! d1 : bitnumber
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.sect .text
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.inn:
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move.l (sp)+,a1
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move.l (sp)+,d1
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move.l d0,-(sp)
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move.l sp,a0
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add.l #4,a0
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move.l d1,d2
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asr.l #3,d2
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cmp.l d0,d2
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bcc 1f
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bclr #0,d2
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bclr #1,d2
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add.l d2,a0
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move.l (a0),d2
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btst d1,d2
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beq 1f
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move.l #1,d0
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bra 2f
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1:
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clr.l d0
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2:
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move.l (sp)+,d1
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add.l d1,sp
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jmp (a1)
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