Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * linux/arch/arm/lib/memchr.S | |
3 | * | |
4 | * Copyright (C) 1995-2000 Russell King | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | * | |
10 | * ASM optimised string functions | |
11 | */ | |
12 | #include <linux/linkage.h> | |
13 | #include <asm/assembler.h> | |
14 | ||
15 | .text | |
16 | .align 5 | |
17 | ENTRY(memchr) | |
18 | 1: subs r2, r2, #1 | |
19 | bmi 2f | |
20 | ldrb r3, [r0], #1 | |
21 | teq r3, r1 | |
22 | bne 1b | |
23 | sub r0, r0, #1 | |
24 | 2: movne r0, #0 | |
7999d8d7 | 25 | mov pc, lr |
93ed3970 | 26 | ENDPROC(memchr) |