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[calu.git]
/
2_isa
/
src
/
strncmp.s
1
strncmp:
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ldis r5, 0 ;
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strfor:
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ldis r0, 0 ;
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ldb r0, 0(r1) ; r0 = (*b1)
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ldb r5, 0(r2) ; r5 = (*b2)
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cmpi r3, 0 ; len == 0
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cmpinq r0, 0 ; (*b1) == 0
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cmpinq r5, 0 ; (*b2) == 0
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ldiseq r0,0 ;
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reteq ;
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sub r0, r0, r5 ; diff = (*b1)-(*b2)
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cmpi r0, 0 ; diff!=0
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retnq ;
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addi r1, r1 ,1 ; ++b1
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addi r2, r2, 1 ; ++b2
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subi r3, r3, 1 ; --len
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branch strfor ;