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WebSVN – planix.SVN – Blame – /os/branches/feature_tlsv12/sys/src/libc/mips/memchr.s – Rev 2

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Rev Author Line No. Line
2 - 1
	TEXT	memchr(SB), $0
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MOVW R1, 0(FP)
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	MOVW	n+8(FP), R1
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	MOVW	s1+0(FP), R2
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	MOVBU	c+7(FP), R3
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	ADDU	R1, R2, R6
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	AND	$(~1), R1, R5
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	ADDU	R2, R5
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	BEQ	R2, R5, lt2
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l1:
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	MOVBU	0(R2), R4
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	MOVBU	1(R2), R7
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	BEQ	R3, R4, eq0
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	ADDU	$2, R2
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	BEQ	R3, R7, eq
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	BNE	R2, R5, l1
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lt2:
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	BEQ	R2, R6, zret
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l2:
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	MOVBU	(R2), R4
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	ADDU	$1, R2
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	BEQ	R3, R4, eq
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	BNE	R2, R6, l2
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zret:
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	MOVW	R0, R1
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	RET
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eq0:
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	MOVW	R2, R1
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	RET
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eq:
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	SUBU	$1,R2, R1
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	RET