26 lines
444 B
ArmAsm
26 lines
444 B
ArmAsm
.define .cms
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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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.sect .text
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! d0 contains set size
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! on exit d0 is zero for equal, non-zero for not equal
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.cms:
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move.l (sp)+, d2 ! return address
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move.l sp, a0 ! address of top block
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lea 0(sp, d0.l), a1 ! address of lower block
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move.l d0, d1
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asr.l #2, d0
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1:
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cmp.l (a0)+, (a1)+
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bne 2f
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sub.l #1, d0
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bne 1b
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2:
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asl.l #1, d1
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add.l d1, sp ! two blocks popped
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move.l d2, -(sp)
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rts
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.align 2
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