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/arch/arm26/lib/csumpartialcopy.S

https://bitbucket.org/evzijst/gittest
Assembly | 52 lines | 41 code | 11 blank | 0 comment | 0 complexity | 4b0b4a9a9bc55797ff9fc95ab9d9280c MD5 | raw file
 1/*
 2 *  linux/arch/arm26/lib/csumpartialcopy.S
 3 *
 4 *  Copyright (C) 1995-1998 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#include <linux/linkage.h>
11#include <asm/assembler.h>
12
13		.text
14
15/* Function: __u32 csum_partial_copy_nocheck(const char *src, char *dst, int len, __u32 sum)
16 * Params  : r0 = src, r1 = dst, r2 = len, r3 = checksum
17 * Returns : r0 = new checksum
18 */
19
20		.macro	save_regs
21		stmfd	sp!, {r1, r4 - r8, fp, ip, lr, pc}
22		.endm
23
24		.macro	load_regs,flags
25		LOADREGS(\flags,fp,{r1, r4 - r8, fp, sp, pc})
26		.endm
27
28		.macro	load1b, reg1
29		ldrb	\reg1, [r0], #1
30		.endm
31
32		.macro	load2b, reg1, reg2
33		ldrb	\reg1, [r0], #1
34		ldrb	\reg2, [r0], #1
35		.endm
36
37		.macro	load1l, reg1
38		ldr	\reg1, [r0], #4
39		.endm
40
41		.macro	load2l, reg1, reg2
42		ldr	\reg1, [r0], #4
43		ldr	\reg2, [r0], #4
44		.endm
45
46		.macro	load4l, reg1, reg2, reg3, reg4
47		ldmia	r0!, {\reg1, \reg2, \reg3, \reg4}
48		.endm
49
50#define FN_ENTRY	ENTRY(csum_partial_copy_nocheck)
51
52#include "csumpartialcopygeneric.S"