?? strchr.s
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/* * linux/arch/arm/lib/strchr.S * * Copyright (C) 1995-2000 Russell King * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * ASM optimised string functions */#include <linux/linkage.h>#include <asm/assembler.h> .text .align 5ENTRY(strchr)1: ldrb r2, [r0], #1 teq r2, r1 teqne r2, #0 bne 1b teq r2, #0 moveq r0, #0 subne r0, r0, #1 RETINSTR(mov,pc,lr)?? 快捷鍵說明
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