C x86/md5-compress.asm ifelse(` Copyright (C) 2005, Niels Möller This file is part of GNU Nettle. GNU Nettle is free software: you can redistribute it and/or modify it under the terms of either: * the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. or * the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. or both in parallel, as here. GNU Nettle is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received copies of the GNU General Public License and the GNU Lesser General Public License along with this program. If not, see http://www.gnu.org/licenses/. ') C Register usage define(`SA',`%eax') define(`SB',`%ebx') define(`SC',`%ecx') define(`SD',`%edx') define(`TMP',`%ebp') define(`INPUT',`%esi') C %edi is unused C F1(x,y,z) = (z ^ (x & (y ^ z))) define(`F1', ` movl $3, TMP xorl $2, TMP andl $1, TMP xorl $3, TMP') define(`F2',`F1($3, $1, $2)') C F3(x,y,z) = x ^ y ^ z define(`F3',` movl $1, TMP xorl $2, TMP xorl $3, TMP') C F4(x,y,z) = y ^ (x | ~z) define(`F4',` movl $3, TMP notl TMP orl $1, TMP xorl $2, TMP') define(`REF',`OFFSET($1)(INPUT)') C ROUND(f, w, x, y, z, k, data, s): C w += f(x,y,z) + data + k C w <<< s C w += x define(`ROUND',` addl $7, $2 $1($3, $4, $5) addl $6, $2 addl TMP, $2 roll `$'$8, $2 addl $3, $2') .file "md5-compress.asm" C nettle_md5_compress(uint32_t *state, uint8_t *data) .text ALIGN(16) PROLOGUE(nettle_md5_compress) C save all registers that need to be saved C 24(%esp) input C 20(%esp) state C 16(%esp) Return address pushl %ebx C 12(%esp) pushl %ebp C 8(%esp) pushl %esi C 4(%esp) pushl %edi C (%esp) C load the state vector movl 20(%esp),TMP movl (TMP), SA movl 4(TMP), SB movl 8(TMP), SC movl 12(TMP), SD C Pointer to source data. C Note that if unaligned, we suffer unaligned accesses movl 24(%esp), INPUT ROUND(`F1', SA, SB, SC, SD, REF( 0), $0xd76aa478, 7) ROUND(`F1', SD, SA, SB, SC, REF( 1), $0xe8c7b756, 12) ROUND(`F1', SC, SD, SA, SB, REF( 2), $0x242070db, 17) ROUND(`F1', SB, SC, SD, SA, REF( 3), $0xc1bdceee, 22) ROUND(`F1', SA, SB, SC, SD, REF( 4), $0xf57c0faf, 7) ROUND(`F1', SD, SA, SB, SC, REF( 5), $0x4787c62a, 12) ROUND(`F1', SC, SD, SA, SB, REF( 6), $0xa8304613, 17) ROUND(`F1', SB, SC, SD, SA, REF( 7), $0xfd469501, 22) ROUND(`F1', SA, SB, SC, SD, REF( 8), $0x698098d8, 7) ROUND(`F1', SD, SA, SB, SC, REF( 9), $0x8b44f7af, 12) ROUND(`F1', SC, SD, SA, SB, REF(10), $0xffff5bb1, 17) ROUND(`F1', SB, SC, SD, SA, REF(11), $0x895cd7be, 22) ROUND(`F1', SA, SB, SC, SD, REF(12), $0x6b901122, 7) ROUND(`F1', SD, SA, SB, SC, REF(13), $0xfd987193, 12) ROUND(`F1', SC, SD, SA, SB, REF(14), $0xa679438e, 17) ROUND(`F1', SB, SC, SD, SA, REF(15), $0x49b40821, 22) ROUND(`F2', SA, SB, SC, SD, REF( 1), $0xf61e2562, 5) ROUND(`F2', SD, SA, SB, SC, REF( 6), $0xc040b340, 9) ROUND(`F2', SC, SD, SA, SB, REF(11), $0x265e5a51, 14) ROUND(`F2', SB, SC, SD, SA, REF( 0), $0xe9b6c7aa, 20) ROUND(`F2', SA, SB, SC, SD, REF( 5), $0xd62f105d, 5) ROUND(`F2', SD, SA, SB, SC, REF(10), $0x02441453, 9) ROUND(`F2', SC, SD, SA, SB, REF(15), $0xd8a1e681, 14) ROUND(`F2', SB, SC, SD, SA, REF( 4), $0xe7d3fbc8, 20) ROUND(`F2', SA, SB, SC, SD, REF( 9), $0x21e1cde6, 5) ROUND(`F2', SD, SA, SB, SC, REF(14), $0xc33707d6, 9) ROUND(`F2', SC, SD, SA, SB, REF( 3), $0xf4d50d87, 14) ROUND(`F2', SB, SC, SD, SA, REF( 8), $0x455a14ed, 20) ROUND(`F2', SA, SB, SC, SD, REF(13), $0xa9e3e905, 5) ROUND(`F2', SD, SA, SB, SC, REF( 2), $0xfcefa3f8, 9) ROUND(`F2', SC, SD, SA, SB, REF( 7), $0x676f02d9, 14) ROUND(`F2', SB, SC, SD, SA, REF(12), $0x8d2a4c8a, 20) ROUND(`F3', SA, SB, SC, SD, REF( 5), $0xfffa3942, 4) ROUND(`F3', SD, SA, SB, SC, REF( 8), $0x8771f681, 11) ROUND(`F3', SC, SD, SA, SB, REF(11), $0x6d9d6122, 16) ROUND(`F3', SB, SC, SD, SA, REF(14), $0xfde5380c, 23) ROUND(`F3', SA, SB, SC, SD, REF( 1), $0xa4beea44, 4) ROUND(`F3', SD, SA, SB, SC, REF( 4), $0x4bdecfa9, 11) ROUND(`F3', SC, SD, SA, SB, REF( 7), $0xf6bb4b60, 16) ROUND(`F3', SB, SC, SD, SA, REF(10), $0xbebfbc70, 23) ROUND(`F3', SA, SB, SC, SD, REF(13), $0x289b7ec6, 4) ROUND(`F3', SD, SA, SB, SC, REF( 0), $0xeaa127fa, 11) ROUND(`F3', SC, SD, SA, SB, REF( 3), $0xd4ef3085, 16) ROUND(`F3', SB, SC, SD, SA, REF( 6), $0x04881d05, 23) ROUND(`F3', SA, SB, SC, SD, REF( 9), $0xd9d4d039, 4) ROUND(`F3', SD, SA, SB, SC, REF(12), $0xe6db99e5, 11) ROUND(`F3', SC, SD, SA, SB, REF(15), $0x1fa27cf8, 16) ROUND(`F3', SB, SC, SD, SA, REF( 2), $0xc4ac5665, 23) ROUND(`F4', SA, SB, SC, SD, REF( 0), $0xf4292244, 6) ROUND(`F4', SD, SA, SB, SC, REF( 7), $0x432aff97, 10) ROUND(`F4', SC, SD, SA, SB, REF(14), $0xab9423a7, 15) ROUND(`F4', SB, SC, SD, SA, REF( 5), $0xfc93a039, 21) ROUND(`F4', SA, SB, SC, SD, REF(12), $0x655b59c3, 6) ROUND(`F4', SD, SA, SB, SC, REF( 3), $0x8f0ccc92, 10) ROUND(`F4', SC, SD, SA, SB, REF(10), $0xffeff47d, 15) ROUND(`F4', SB, SC, SD, SA, REF( 1), $0x85845dd1, 21) ROUND(`F4', SA, SB, SC, SD, REF( 8), $0x6fa87e4f, 6) ROUND(`F4', SD, SA, SB, SC, REF(15), $0xfe2ce6e0, 10) ROUND(`F4', SC, SD, SA, SB, REF( 6), $0xa3014314, 15) ROUND(`F4', SB, SC, SD, SA, REF(13), $0x4e0811a1, 21) ROUND(`F4', SA, SB, SC, SD, REF( 4), $0xf7537e82, 6) ROUND(`F4', SD, SA, SB, SC, REF(11), $0xbd3af235, 10) ROUND(`F4', SC, SD, SA, SB, REF( 2), $0x2ad7d2bb, 15) ROUND(`F4', SB, SC, SD, SA, REF( 9), $0xeb86d391, 21) C Update the state vector movl 20(%esp),TMP addl SA, (TMP) addl SB, 4(TMP) addl SC, 8(TMP) addl SD, 12(TMP) popl %edi popl %esi popl %ebp popl %ebx ret EPILOGUE(nettle_md5_compress)