/* | |
* linux/arch/arm/lib/strchr.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(strchr) | |
and r1, r1, #0xff | |
1: ldrb r2, [r0], #1 | |
teq r2, r1 | |
teqne r2, #0 | |
bne 1b | |
teq r2, r1 | |
movne r0, #0 | |
subeq r0, r0, #1 | |
mov pc, lr | |
ENDPROC(strchr) |