11da177e4SLinus Torvalds/* 21da177e4SLinus Torvalds * linux/arch/arm/lib/strchr.S 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (C) 1995-2000 Russell King 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or modify 71da177e4SLinus Torvalds * it under the terms of the GNU General Public License version 2 as 81da177e4SLinus Torvalds * published by the Free Software Foundation. 91da177e4SLinus Torvalds * 101da177e4SLinus Torvalds * ASM optimised string functions 111da177e4SLinus Torvalds */ 121da177e4SLinus Torvalds#include <linux/linkage.h> 131da177e4SLinus Torvalds#include <asm/assembler.h> 141da177e4SLinus Torvalds 151da177e4SLinus Torvalds .text 161da177e4SLinus Torvalds .align 5 171da177e4SLinus TorvaldsENTRY(strchr) 181da177e4SLinus Torvalds and r1, r1, #0xff 191da177e4SLinus Torvalds1: ldrb r2, [r0], #1 201da177e4SLinus Torvalds teq r2, r1 211da177e4SLinus Torvalds teqne r2, #0 221da177e4SLinus Torvalds bne 1b 231da177e4SLinus Torvalds teq r2, r1 241da177e4SLinus Torvalds movne r0, #0 251da177e4SLinus Torvalds subeq r0, r0, #1 26*6ebbf2ceSRussell King ret lr 2793ed3970SCatalin MarinasENDPROC(strchr) 28