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| author | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
|---|---|---|
| committer | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
| commit | 849369d6c66d3054688672f97d31fceb8e8230fb (patch) | |
| tree | 6135abc790ca67dedbe07c39806591e70eda81ce /arch/arm/lib/memchr.S | |
| download | linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.tar.gz linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.tar.bz2 linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.zip | |
initial_commit
Diffstat (limited to 'arch/arm/lib/memchr.S')
| -rw-r--r-- | arch/arm/lib/memchr.S | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/lib/memchr.S b/arch/arm/lib/memchr.S new file mode 100644 index 00000000..1da86991 --- /dev/null +++ b/arch/arm/lib/memchr.S @@ -0,0 +1,26 @@ +/* + * linux/arch/arm/lib/memchr.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 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 + mov pc, lr +ENDPROC(memchr) |