tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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#include <asm/export.h>
15
16 .text
17 .align 5
18ENTRY(memchr)
191: subs r2, r2, #1
20 bmi 2f
21 ldrb r3, [r0], #1
22 teq r3, r1
23 bne 1b
24 sub r0, r0, #1
252: movne r0, #0
26 ret lr
27ENDPROC(memchr)
28EXPORT_SYMBOL(memchr)