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- /* SPDX-License-Identifier: GPL-2.0-only */
- /*
- * linux/arch/arm/lib/memchr.S
- *
- * Copyright (C) 1995-2000 Russell King
- *
- * ASM optimised string functions
- */
- #include <linux/linkage.h>
- #include <asm/assembler.h>
- .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)
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