/* SPDX-License-Identifier: GPL-2.0-only */ /* * linux/arch/arm/lib/memchr.S * * Copyright (C) 1995-2000 Russell King * * ASM optimised string functions */ #include #include .text .align 5 ENTRY(memchr) 1: subs r2, r2, #1 bmi 2f ldrb r3, [r0], #1 teq r3, r1 bne 1b sub r0, r0, #1 2: movne r0, #0 ret lr ENDPROC(memchr)