147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom/* crypto/bf/bf_locl.h */ 247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) 347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * All rights reserved. 447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * 547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * This package is an SSL implementation written 647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * by Eric Young (eay@cryptsoft.com). 747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * The implementation was written so as to conform with Netscapes SSL. 847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * 947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * This library is free for commercial and non-commercial use as long as 1047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * the following conditions are aheared to. The following conditions 1147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * apply to all code found in this distribution, be it the RC4, RSA, 1247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * included with this distribution is covered by the same copyright terms 1447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * except that the holder is Tim Hudson (tjh@cryptsoft.com). 1547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * 1647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * Copyright remains Eric Young's, and as such any Copyright notices in 1747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * the code are not to be removed. 1847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * If this package is used in a product, Eric Young should be given attribution 1947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * as the author of the parts of the library used. 2047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * This can be in the form of a textual message at program startup or 2147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * in documentation (online or textual) provided with the package. 2247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * 2347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * Redistribution and use in source and binary forms, with or without 2447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * modification, are permitted provided that the following conditions 2547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * are met: 2647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * 1. Redistributions of source code must retain the copyright 2747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * notice, this list of conditions and the following disclaimer. 2847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * 2. Redistributions in binary form must reproduce the above copyright 2947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * notice, this list of conditions and the following disclaimer in the 3047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * documentation and/or other materials provided with the distribution. 3147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * 3. All advertising materials mentioning features or use of this software 3247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * must display the following acknowledgement: 3347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * "This product includes cryptographic software written by 3447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * Eric Young (eay@cryptsoft.com)" 3547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * The word 'cryptographic' can be left out if the rouines from the library 3647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * being used are not cryptographic related :-). 3747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * 4. If you include any Windows specific code (or a derivative thereof) from 3847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * the apps directory (application code) you must include an acknowledgement: 3947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 4047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * 4147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * SUCH DAMAGE. 5247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * 5347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * The licence and distribution terms for any publically available version or 5447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * derivative of this code cannot be changed. i.e. this code cannot simply be 5547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * copied and put under another distribution licence 5647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * [including the GNU Public Licence.] 5747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom */ 5847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 5947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#ifndef HEADER_BF_LOCL_H 6047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define HEADER_BF_LOCL_H 6147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#include <openssl/opensslconf.h> /* BF_PTR, BF_PTR2 */ 6247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 6347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#undef c2l 6447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define c2l(c,l) (l =((unsigned long)(*((c)++))) , \ 6547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom l|=((unsigned long)(*((c)++)))<< 8L, \ 6647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom l|=((unsigned long)(*((c)++)))<<16L, \ 6747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom l|=((unsigned long)(*((c)++)))<<24L) 6847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 6947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom/* NOTE - c is not incremented as per c2l */ 7047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#undef c2ln 7147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define c2ln(c,l1,l2,n) { \ 7247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom c+=n; \ 7347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom l1=l2=0; \ 7447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom switch (n) { \ 7547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 8: l2 =((unsigned long)(*(--(c))))<<24L; \ 7647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 7: l2|=((unsigned long)(*(--(c))))<<16L; \ 7747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 6: l2|=((unsigned long)(*(--(c))))<< 8L; \ 7847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 5: l2|=((unsigned long)(*(--(c)))); \ 7947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 4: l1 =((unsigned long)(*(--(c))))<<24L; \ 8047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 3: l1|=((unsigned long)(*(--(c))))<<16L; \ 8147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 2: l1|=((unsigned long)(*(--(c))))<< 8L; \ 8247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 1: l1|=((unsigned long)(*(--(c)))); \ 8347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom } \ 8447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom } 8547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 8647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#undef l2c 8747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ 8847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ 8947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ 9047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom *((c)++)=(unsigned char)(((l)>>24L)&0xff)) 9147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 9247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom/* NOTE - c is not incremented as per l2c */ 9347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#undef l2cn 9447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define l2cn(l1,l2,c,n) { \ 9547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom c+=n; \ 9647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom switch (n) { \ 9747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \ 9847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \ 9947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \ 10047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \ 10147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \ 10247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \ 10347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \ 10447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \ 10547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom } \ 10647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom } 10747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 10847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom/* NOTE - c is not incremented as per n2l */ 10947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define n2ln(c,l1,l2,n) { \ 11047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom c+=n; \ 11147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom l1=l2=0; \ 11247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom switch (n) { \ 11347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 8: l2 =((unsigned long)(*(--(c)))) ; \ 11447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 7: l2|=((unsigned long)(*(--(c))))<< 8; \ 11547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 6: l2|=((unsigned long)(*(--(c))))<<16; \ 11647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 5: l2|=((unsigned long)(*(--(c))))<<24; \ 11747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 4: l1 =((unsigned long)(*(--(c)))) ; \ 11847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 3: l1|=((unsigned long)(*(--(c))))<< 8; \ 11947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 2: l1|=((unsigned long)(*(--(c))))<<16; \ 12047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 1: l1|=((unsigned long)(*(--(c))))<<24; \ 12147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom } \ 12247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom } 12347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 12447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom/* NOTE - c is not incremented as per l2n */ 12547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define l2nn(l1,l2,c,n) { \ 12647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom c+=n; \ 12747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom switch (n) { \ 12847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 8: *(--(c))=(unsigned char)(((l2) )&0xff); \ 12947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 7: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \ 13047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 6: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \ 13147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 5: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \ 13247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 4: *(--(c))=(unsigned char)(((l1) )&0xff); \ 13347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 3: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \ 13447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 2: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \ 13547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom case 1: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \ 13647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom } \ 13747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom } 13847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 13947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#undef n2l 14047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24L, \ 14147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom l|=((unsigned long)(*((c)++)))<<16L, \ 14247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom l|=((unsigned long)(*((c)++)))<< 8L, \ 14347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom l|=((unsigned long)(*((c)++)))) 14447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 14547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#undef l2n 14647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \ 14747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ 14847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ 14947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom *((c)++)=(unsigned char)(((l) )&0xff)) 15047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 15147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom/* This is actually a big endian algorithm, the most significant byte 15247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * is used to lookup array 0 */ 15347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 15447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#if defined(BF_PTR2) 15547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 15647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom/* 15747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * This is basically a special Intel version. Point is that Intel 15847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * doesn't have many registers, but offers a reach choice of addressing 15947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * modes. So we spare some registers by directly traversing BF_KEY 16047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * structure and hiring the most decorated addressing mode. The code 16147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * generated by EGCS is *perfectly* competitive with assembler 16247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * implementation! 16347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom */ 16447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define BF_ENC(LL,R,KEY,Pi) (\ 16547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom LL^=KEY[Pi], \ 16647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom t= KEY[BF_ROUNDS+2 + 0 + ((R>>24)&0xFF)], \ 16747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom t+= KEY[BF_ROUNDS+2 + 256 + ((R>>16)&0xFF)], \ 16847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom t^= KEY[BF_ROUNDS+2 + 512 + ((R>>8 )&0xFF)], \ 16947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom t+= KEY[BF_ROUNDS+2 + 768 + ((R )&0xFF)], \ 17047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom LL^=t \ 17147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom ) 17247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 17347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#elif defined(BF_PTR) 17447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 17547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#ifndef BF_LONG_LOG2 17647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define BF_LONG_LOG2 2 /* default to BF_LONG being 32 bits */ 17747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#endif 17847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define BF_M (0xFF<<BF_LONG_LOG2) 17947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define BF_0 (24-BF_LONG_LOG2) 18047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define BF_1 (16-BF_LONG_LOG2) 18147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define BF_2 ( 8-BF_LONG_LOG2) 18247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define BF_3 BF_LONG_LOG2 /* left shift */ 18347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 18447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom/* 18547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * This is normally very good on RISC platforms where normally you 18647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * have to explicitly "multiply" array index by sizeof(BF_LONG) 18747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * in order to calculate the effective address. This implementation 18847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * excuses CPU from this extra work. Power[PC] uses should have most 18947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * fun as (R>>BF_i)&BF_M gets folded into a single instruction, namely 19047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * rlwinm. So let'em double-check if their compiler does it. 19147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom */ 19247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 19347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define BF_ENC(LL,R,S,P) ( \ 19447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom LL^=P, \ 19547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom LL^= (((*(BF_LONG *)((unsigned char *)&(S[ 0])+((R>>BF_0)&BF_M))+ \ 19647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom *(BF_LONG *)((unsigned char *)&(S[256])+((R>>BF_1)&BF_M)))^ \ 19747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom *(BF_LONG *)((unsigned char *)&(S[512])+((R>>BF_2)&BF_M)))+ \ 19847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom *(BF_LONG *)((unsigned char *)&(S[768])+((R<<BF_3)&BF_M))) \ 19947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom ) 20047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#else 20147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 20247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom/* 20347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * This is a *generic* version. Seem to perform best on platforms that 20447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * offer explicit support for extraction of 8-bit nibbles preferably 20547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * complemented with "multiplying" of array index by sizeof(BF_LONG). 20647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * For the moment of this writing the list comprises Alpha CPU featuring 20747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom * extbl and s[48]addq instructions. 20847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom */ 20947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 21047e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#define BF_ENC(LL,R,S,P) ( \ 21147e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom LL^=P, \ 21247e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom LL^=((( S[ ((int)(R>>24)&0xff)] + \ 21347e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom S[0x0100+((int)(R>>16)&0xff)])^ \ 21447e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom S[0x0200+((int)(R>> 8)&0xff)])+ \ 21547e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom S[0x0300+((int)(R )&0xff)])&0xffffffffL \ 21647e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom ) 21747e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#endif 21847e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom 21947e6a167f114f4c4b0bae4bce4ba1c4f539e0dc1Brian Carlstrom#endif 220