2 * linux/arch/arm/lib/memcpy.S
4 * Author: Nicolas Pitre
5 * Created: Sep 28, 2005
6 * Copyright: MontaVista Software, Inc.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/linkage.h>
14 #include <asm/assembler.h>
16 .macro ldr1w ptr reg abort
20 .macro ldr4w ptr reg1 reg2 reg3 reg4 abort
21 ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4}
24 .macro ldr8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort
25 ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8}
28 .macro ldr1b ptr reg cond=al abort
29 ldr\cond\()b \reg, [\ptr], #1
32 .macro str1w ptr reg abort
36 .macro str8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort
37 stmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8}
40 .macro str1b ptr reg cond=al abort
41 str\cond\()b \reg, [\ptr], #1
44 .macro enter reg1 reg2
45 stmdb sp!, {r0, \reg1, \reg2}
49 ldmfd sp!, {r0, \reg1, \reg2}
54 /* Prototype: void *memcpy(void *dest, const void *src, size_t n); */
58 #include "copy_template.S"