2021-07-25 15:54:22 +00:00
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TEXT memchr(SB),$0
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2014-02-01 09:31:41 +00:00
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2021-07-25 15:54:22 +00:00
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MOVQ n+16(FP), CX
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CMPQ CX, $0
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2014-02-01 09:31:41 +00:00
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JEQ none
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MOVQ RARG, DI
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MOVBLZX c+8(FP), AX
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CLD
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/*
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* SCASB is memchr instruction
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*/
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REPN; SCASB
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JEQ found
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none:
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MOVL $0, AX
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RET
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found:
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MOVQ DI, AX
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SUBQ $1, AX
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RET
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