/* * 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 mov ip, sp stmfd sp!, {r1, r4 - r8, fp, ip, lr, pc} sub fp, ip, #4 .endm .macro load_regs ldmfd sp, {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"