36 lines
634 B
ArmAsm
36 lines
634 B
ArmAsm
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#
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.sect .text; .sect .rom; .sect .data; .sect .bss
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/*
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* Set comparison Returns 0 if the sets were equal.
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* Stack: ( a b size -- a!=b )
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*/
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.sect .text
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.define .cms
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.cms:
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lw r4, 0(sp) ! r4 = size; sp points at b-word
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addu r5, sp, r4 ! r5 points at a-word
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addu r6, r5, r4 ! r6 is final sp-word
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srl r4, r4, 2 ! r4 = count of words
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li r8, 1 ! result
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1:
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lw at, 4(r5) ! load a
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lw r7, 4(sp) ! load b
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bne at, r7, exit ! branch if not equal
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nop
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addiu r5, r5, 4
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addiu sp, sp, 4
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addiu r4, r4, -1
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bne r4, zero, 1b
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nop
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li r8, 0 ! Update result.
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exit:
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mov sp, r6
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sw r8, 0(sp)
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jr ra
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nop
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