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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
17ENTRY(memchr)
181: subs r2, r2, #1
19 bmi 2f
20 ldrb r3, [r0], #1
21 teq r3, r1
22 bne 1b
23 sub r0, r0, #1
242: movne r0, #0
25 RETINSTR(mov,pc,lr)