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