TEXT	memset(SB),$12MOVW R1, 0(FP) /* * performance: *	about 1us/call and 28mb/sec */ 	MOVW	n+8(FP), R3		/* R3 is count */	MOVW	p+0(FP), R4		/* R4 is pointer */	MOVW	c+4(FP), R5		/* R5 is char */	ADDU	R3,R4, R6		/* R6 is end pointer */ /* * if not at least 4 chars, * dont even mess around. * 3 chars to guarantee any * rounding up to a word * boundary and 4 characters * to get at least maybe one * full word store. */	SGT	$4,R3, R1	BNE	R1, out /* * turn R5 into a word of characters */	AND	$0xff, R5	SLL	$8,R5, R1	OR	R1, R5	SLL	$16,R5, R1	OR	R1, R5 /* * store one byte at a time until pointer * is alligned on a word boundary */l1:	AND	$3,R4, R1	BEQ	R1, l2	MOVB	R5, 0(R4)	ADDU	$1, R4	JMP	l1 /* * turn R3 into end pointer-15 * store 16 at a time while theres room */l2:	ADDU	$-15,R6, R3l3:	SGTU	R3,R4, R1	BEQ	R1, l4	MOVW	R5, 0(R4)	MOVW	R5, 4(R4)	ADDU	$16, R4	MOVW	R5, -8(R4)	MOVW	R5, -4(R4)	JMP	l3 /* * turn R3 into end pointer-3 * store 4 at a time while theres room */l4:	ADDU	$-3,R6, R3l5:	SGTU	R3,R4, R1	BEQ	R1, out	MOVW	R5, 0(R4)	ADDU	$4, R4	JMP	l5 /* * last loop, store byte at a time */out:	SGTU	R6,R4 ,R1	BEQ	R1, ret	MOVB	R5, 0(R4)	ADDU	$1, R4	JMP	out ret:	MOVW	s1+0(FP), R1	RET	END