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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [arch/] [arm/] [lib/] [csumpartialcopy.S] - Rev 1765

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/*
 *  linux/arch/arm/lib/csumpartialcopy.S
 *
 *  Copyright (C) 1995-1998 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.
 */
#include <linux/linkage.h>
#include <asm/assembler.h>

                .text

/* Function: __u32 csum_partial_copy_nocheck(const char *src, char *dst, int len, __u32 sum)
 * Params  : r0 = src, r1 = dst, r2 = len, r3 = checksum
 * Returns : r0 = new checksum
 */

                .macro  save_regs
                stmfd   sp!, {r1, r4 - r8, fp, ip, lr, pc}
                .endm

                .macro  load_regs,flags
                LOADREGS(\flags,fp,{r1, r4 - r8, fp, sp, pc})
                .endm

                .macro  load1b, reg1
                ldrb    \reg1, [r0], #1
                .endm

                .macro  load2b, reg1, reg2
                ldrb    \reg1, [r0], #1
                ldrb    \reg2, [r0], #1
                .endm

                .macro  load1l, reg1
                ldr     \reg1, [r0], #4
                .endm

                .macro  load2l, reg1, reg2
                ldr     \reg1, [r0], #4
                ldr     \reg2, [r0], #4
                .endm

                .macro  load4l, reg1, reg2, reg3, reg4
                ldmia   r0!, {\reg1, \reg2, \reg3, \reg4}
                .endm

#define FN_ENTRY        ENTRY(csum_partial_copy_nocheck)

#include "csumpartialcopygeneric.S"

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