X-Git-Url: https://git.cryptolib.org/?a=blobdiff_plain;f=memxor.S;h=885dad5338a4f4ad65391ed5f367c802736b6224;hb=e5a49deb52521f019e37779d6e9d81ec4f02aba4;hp=0e0419830d2d1cc7f1dc816fee8d56411c6590c7;hpb=f0ca870318011539b8cab50cf3e9b96a19307deb;p=avr-crypto-lib.git diff --git a/memxor.S b/memxor.S index 0e04198..885dad5 100644 --- a/memxor.S +++ b/memxor.S @@ -1,6 +1,6 @@ /* memxor.S */ /* - This file is part of the Crypto-avr-lib/microcrypt-lib. + This file is part of the AVR-Crypto-Lib. Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de) This program is free software: you can redistribute it and/or modify @@ -20,59 +20,12 @@ /* * File: memxor.S * Author: Daniel Otte - * Date: 2006-07-06 + * Date: 2008-08-07 * License: GPLv3 or later - * Description: Implementation of the ARCFOUR (RC4 compatible) stream cipher algorithm. + * Description: memxor, XORing one block into another * */ -#include - - -.macro push_ p1:req, p2:vararg - push \p1 -.ifnb \p2 - push_ \p2 -.endif -.endm - -.macro pop_ p1:req, p2:vararg - pop \p1 -.ifnb \p2 - pop_ \p2 -.endif -.endm - -.macro push_range from:req, to:req - push \from -.if \to-\from - push_range "(\from+1)",\to -.endif -.endm - -.macro pop_range from:req, to:req - pop \to -.if \to-\from - pop_range \from,"(\to-1)" -.endif -.endm - -.macro stack_alloc size:req, reg1=r30, reg2=r31 - in \reg1, _SFR_IO_ADDR(SPL) - in \reg2, _SFR_IO_ADDR(SPH) - sbiw r30, \size - out _SFR_IO_ADDR(SPH), \reg2 - out _SFR_IO_ADDR(SPL), \reg1 -.endm - -.macro stack_free size:req, reg1=r30, reg2=r31 - in \reg1, _SFR_IO_ADDR(SPL) - in \reg2, _SFR_IO_ADDR(SPH) - adiw r30, \size - out _SFR_IO_ADDR(SPH), \reg2 - out _SFR_IO_ADDR(SPL), \reg1 -.endm - /* * void memxor(void* dest, const void* src, uint16_t n); */