linux/arch/arm/lib/strrchr.S

24 lines
383 B
ArmAsm

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* linux/arch/arm/lib/strrchr.S
*
* Copyright (C) 1995-2000 Russell King
*
* ASM optimised string functions
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
.text
.align 5
ENTRY(strrchr)
mov r3, #0
1: ldrb r2, [r0], #1
teq r2, r1
subeq r3, r0, #1
teq r2, #0
bne 1b
mov r0, r3
ret lr
ENDPROC(strrchr)