/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *  linux/arch/arm/lib/strchr.S
 *
 *  Copyright (C) 1995-2000 Russell King
 *
 *  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
                ret     lr
ENDPROC(strchr)