[linux-2.6-block.git] / arch / arm / lib / memchr.S

/*
 *  linux/arch/arm/lib/memchr.S
 *
 *  Copyright (C) 1995-2000 Russell King
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 *  ASM optimised string functions
 */
#include <linux/linkage.h>
#include <asm/assembler.h>

	.text
	.align	5
ENTRY(memchr)
1:	subs	r2, r2, #1
	bmi	2f
	ldrb	r3, [r0], #1
	teq	r3, r1
	bne	1b
	sub	r0, r0, #1
2:	movne	r0, #0
	ret	lr
ENDPROC(memchr)
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/arch/arm/lib/memchr.S
	3	*
	4	* Copyright (C) 1995-2000 Russell King
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*
	10	* ASM optimised string functions
	11	*/
	12	#include <linux/linkage.h>
	13	#include <asm/assembler.h>
	14
	15	.text
	16	.align 5
	17	ENTRY(memchr)
	18	1: subs r2, r2, #1
	19	bmi 2f
	20	ldrb r3, [r0], #1
	21	teq r3, r1
	22	bne 1b
	23	sub r0, r0, #1
	24	2: movne r0, #0
6ebbf2ce	25	ret lr
93ed3970	26	ENDPROC(memchr)