1/*
2 *  linux/arch/arm/lib/memcpy.S
3 *
4 *  Author:	Nicolas Pitre
5 *  Created:	Sep 28, 2005
6 *  Copyright:	MontaVista Software, Inc.
7 *
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.
11 */
12#include "assembler.h"
13
14#define LDR1W_SHIFT	0
15#define STR1W_SHIFT	0
16
17	.macro ldr1w ptr reg abort
18	W(ldr) \reg, [\ptr], #4
19	.endm
20
21	.macro ldr4w ptr reg1 reg2 reg3 reg4 abort
22	ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4}
23	.endm
24
25	.macro ldr8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort
26	ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8}
27	.endm
28
29	.macro ldr1b ptr reg cond=al abort
30	ldr\cond\()b \reg, [\ptr], #1
31	.endm
32
33	.macro str1w ptr reg abort
34	W(str) \reg, [\ptr], #4
35	.endm
36
37	.macro str8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort
38	stmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8}
39	.endm
40
41	.macro str1b ptr reg cond=al abort
42	str\cond\()b \reg, [\ptr], #1
43	.endm
44
45	.macro enter reg1 reg2
46	stmdb sp!, {r0, \reg1, \reg2}
47	.endm
48
49	.macro exit reg1 reg2
50	ldmfd sp!, {r0, \reg1, \reg2}
51	.endm
52
53	.text
54
55/* Prototype: void *memcpy(void *dest, const void *src, size_t n); */
56
57ENTRY(memcpy)
58
59#include "copy_template.S"
60
61ENDPROC(memcpy)
62