TO = 1TOE = 2N = 3TMP = 3					/* N and TMP don't overlap */ TEXT memset(SB), $0	MOVW	R0, R(TO)	MOVW	data+4(FP), R(4)	MOVW	n+8(FP), R(N) 	ADD	R(N), R(TO), R(TOE)	/* to end pointer */ 	CMP	$4, R(N)		/* need at least 4 bytes to copy */	BLT	_1tail 	AND	$0xFF, R(4)	ORR	R(4)<<8, R(4)	ORR	R(4)<<16, R(4)		/* replicate to word */ _4align:				/* align on 4 */	AND.S	$3, R(TO), R(TMP)	BEQ	_4aligned 	MOVBU.P	R(4), 1(R(TO))		/* implicit write back */	B	_4align _4aligned:	SUB	$15, R(TOE), R(TMP)	/* do 16-byte chunks if possible */	CMP	R(TMP), R(TO)	BHS	_4tail 	MOVW	R4, R5			/* replicate */	MOVW	R4, R6	MOVW	R4, R7 _f16loop:	CMP	R(TMP), R(TO)	BHS	_4tail 	MOVM.IA.W [R4-R7], (R(TO))	B	_f16loop _4tail:	SUB	$3, R(TOE), R(TMP)	/* do remaining words if possible */_4loop:	CMP	R(TMP), R(TO)	BHS	_1tail 	MOVW.P	R(4), 4(R(TO))		/* implicit write back */	B	_4loop _1tail:	CMP	R(TO), R(TOE)	BEQ	_return 	MOVBU.P	R(4), 1(R(TO))		/* implicit write back */	B	_1tail _return:	RET