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	TEXT	memccpy(SB),$0
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	MOVL	n+12(FP), CX
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	CMPL	CX, $0
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	JEQ	none
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	MOVL	p2+4(FP), DI
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	MOVBLZX	c+8(FP), AX
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	CLD
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/*
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 * find the character in the second string
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 */
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	REPN;	SCASB
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	JEQ	found
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/*
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 * if not found, set count to 'n'
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 */
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none:
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	MOVL	$0, AX
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	MOVL	n+12(FP), BX
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	JMP	memcpy
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/*
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 * if found, set count to bytes thru character
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 */
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found:
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	MOVL	DI, AX
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	SUBL	p2+4(FP), AX
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	MOVL	AX, BX
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	ADDL	p1+0(FP), AX
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/*
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 * copy the memory
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 */
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memcpy:
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	MOVL	p1+0(FP), DI
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	MOVL	p2+4(FP), SI
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/*
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 * copy whole longs
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 */
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	MOVL	BX, CX
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	SHRL	$2, CX
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	REP;	MOVSL
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/*
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 * copy the rest, by bytes
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 */
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	ANDL	$3, BX
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	MOVL	BX, CX
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	REP;	MOVSB
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	RET