1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
| /*
| * 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 5
| ENTRY(strchr)
| and r1, r1, #0xff
| 1: ldrb r2, [r0], #1
| teq r2, r1
| teqne r2, #0
| bne 1b
| teq r2, r1
| movne r0, #0
| subeq r0, r0, #1
| ret lr
| ENDPROC(strchr)
|
|
