bf_enc_686.S revision 259065
1/* $NetBSD: bf_enc_686.S,v 1.1 2001/09/09 11:01:02 tls Exp $ */ 2/* $FreeBSD: releng/10.0/sys/crypto/blowfish/arch/i386/bf_enc_686.S 91671 2002-03-05 09:19:02Z ume $ */ 3 4/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 5 * All rights reserved. 6 * 7 * This package is an SSL implementation written 8 * by Eric Young (eay@cryptsoft.com). 9 * The implementation was written so as to conform with Netscapes SSL. 10 * 11 * This library is free for commercial and non-commercial use as long as 12 * the following conditions are aheared to. The following conditions 13 * apply to all code found in this distribution, be it the RC4, RSA, 14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 15 * included with this distribution is covered by the same copyright terms 16 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 17 * 18 * Copyright remains Eric Young's, and as such any Copyright notices in 19 * the code are not to be removed. 20 * If this package is used in a product, Eric Young should be given attribution 21 * as the author of the parts of the library used. 22 * This can be in the form of a textual message at program startup or 23 * in documentation (online or textual) provided with the package. 24 * 25 * Redistribution and use in source and binary forms, with or without 26 * modification, are permitted provided that the following conditions 27 * are met: 28 * 1. Redistributions of source code must retain the copyright 29 * notice, this list of conditions and the following disclaimer. 30 * 2. Redistributions in binary form must reproduce the above copyright 31 * notice, this list of conditions and the following disclaimer in the 32 * documentation and/or other materials provided with the distribution. 33 * 3. All advertising materials mentioning features or use of this software 34 * must display the following acknowledgement: 35 * "This product includes cryptographic software written by 36 * Eric Young (eay@cryptsoft.com)" 37 * The word 'cryptographic' can be left out if the rouines from the library 38 * being used are not cryptographic related :-). 39 * 4. If you include any Windows specific code (or a derivative thereof) from 40 * the apps directory (application code) you must include an acknowledgement: 41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 42 * 43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 53 * SUCH DAMAGE. 54 * 55 * The licence and distribution terms for any publically available version or 56 * derivative of this code cannot be changed. i.e. this code cannot simply be 57 * copied and put under another distribution licence 58 * [including the GNU Public Licence.] 59 */ 60 61/* 62 * Modified from the output of `perl bf-686.pl elf' by 63 * Jason R. Thorpe <thorpej@zembu.com> and Thor Lancelot Simon 64 * <tls@netbsd.org> 65 */ 66 67#include <i386/include/asm.h> 68#define _C_LABEL CNAME 69 70ENTRY(BF_encrypt) 71 pushl %ebp 72 pushl %ebx 73 pushl %esi 74 pushl %edi 75 76 77 /* Load the 2 words */ 78 movl 20(%esp), %eax 79 movl (%eax), %ecx 80 movl 4(%eax), %edx 81 82 /* P pointer, s and enc flag */ 83 movl 24(%esp), %edi 84 xorl %eax, %eax 85 xorl %ebx, %ebx 86 xorl (%edi), %ecx 87 88 /* Round 0 */ 89 rorl $16, %ecx 90 movl 4(%edi), %esi 91 movb %ch, %al 92 movb %cl, %bl 93 rorl $16, %ecx 94 xorl %esi, %edx 95 movl 72(%edi,%eax,4),%esi 96 movl 1096(%edi,%ebx,4),%ebp 97 movb %ch, %al 98 movb %cl, %bl 99 addl %ebp, %esi 100 movl 2120(%edi,%eax,4),%eax 101 xorl %eax, %esi 102 movl 3144(%edi,%ebx,4),%ebp 103 addl %ebp, %esi 104 xorl %eax, %eax 105 xorl %esi, %edx 106 107 /* Round 1 */ 108 rorl $16, %edx 109 movl 8(%edi), %esi 110 movb %dh, %al 111 movb %dl, %bl 112 rorl $16, %edx 113 xorl %esi, %ecx 114 movl 72(%edi,%eax,4),%esi 115 movl 1096(%edi,%ebx,4),%ebp 116 movb %dh, %al 117 movb %dl, %bl 118 addl %ebp, %esi 119 movl 2120(%edi,%eax,4),%eax 120 xorl %eax, %esi 121 movl 3144(%edi,%ebx,4),%ebp 122 addl %ebp, %esi 123 xorl %eax, %eax 124 xorl %esi, %ecx 125 126 /* Round 2 */ 127 rorl $16, %ecx 128 movl 12(%edi), %esi 129 movb %ch, %al 130 movb %cl, %bl 131 rorl $16, %ecx 132 xorl %esi, %edx 133 movl 72(%edi,%eax,4),%esi 134 movl 1096(%edi,%ebx,4),%ebp 135 movb %ch, %al 136 movb %cl, %bl 137 addl %ebp, %esi 138 movl 2120(%edi,%eax,4),%eax 139 xorl %eax, %esi 140 movl 3144(%edi,%ebx,4),%ebp 141 addl %ebp, %esi 142 xorl %eax, %eax 143 xorl %esi, %edx 144 145 /* Round 3 */ 146 rorl $16, %edx 147 movl 16(%edi), %esi 148 movb %dh, %al 149 movb %dl, %bl 150 rorl $16, %edx 151 xorl %esi, %ecx 152 movl 72(%edi,%eax,4),%esi 153 movl 1096(%edi,%ebx,4),%ebp 154 movb %dh, %al 155 movb %dl, %bl 156 addl %ebp, %esi 157 movl 2120(%edi,%eax,4),%eax 158 xorl %eax, %esi 159 movl 3144(%edi,%ebx,4),%ebp 160 addl %ebp, %esi 161 xorl %eax, %eax 162 xorl %esi, %ecx 163 164 /* Round 4 */ 165 rorl $16, %ecx 166 movl 20(%edi), %esi 167 movb %ch, %al 168 movb %cl, %bl 169 rorl $16, %ecx 170 xorl %esi, %edx 171 movl 72(%edi,%eax,4),%esi 172 movl 1096(%edi,%ebx,4),%ebp 173 movb %ch, %al 174 movb %cl, %bl 175 addl %ebp, %esi 176 movl 2120(%edi,%eax,4),%eax 177 xorl %eax, %esi 178 movl 3144(%edi,%ebx,4),%ebp 179 addl %ebp, %esi 180 xorl %eax, %eax 181 xorl %esi, %edx 182 183 /* Round 5 */ 184 rorl $16, %edx 185 movl 24(%edi), %esi 186 movb %dh, %al 187 movb %dl, %bl 188 rorl $16, %edx 189 xorl %esi, %ecx 190 movl 72(%edi,%eax,4),%esi 191 movl 1096(%edi,%ebx,4),%ebp 192 movb %dh, %al 193 movb %dl, %bl 194 addl %ebp, %esi 195 movl 2120(%edi,%eax,4),%eax 196 xorl %eax, %esi 197 movl 3144(%edi,%ebx,4),%ebp 198 addl %ebp, %esi 199 xorl %eax, %eax 200 xorl %esi, %ecx 201 202 /* Round 6 */ 203 rorl $16, %ecx 204 movl 28(%edi), %esi 205 movb %ch, %al 206 movb %cl, %bl 207 rorl $16, %ecx 208 xorl %esi, %edx 209 movl 72(%edi,%eax,4),%esi 210 movl 1096(%edi,%ebx,4),%ebp 211 movb %ch, %al 212 movb %cl, %bl 213 addl %ebp, %esi 214 movl 2120(%edi,%eax,4),%eax 215 xorl %eax, %esi 216 movl 3144(%edi,%ebx,4),%ebp 217 addl %ebp, %esi 218 xorl %eax, %eax 219 xorl %esi, %edx 220 221 /* Round 7 */ 222 rorl $16, %edx 223 movl 32(%edi), %esi 224 movb %dh, %al 225 movb %dl, %bl 226 rorl $16, %edx 227 xorl %esi, %ecx 228 movl 72(%edi,%eax,4),%esi 229 movl 1096(%edi,%ebx,4),%ebp 230 movb %dh, %al 231 movb %dl, %bl 232 addl %ebp, %esi 233 movl 2120(%edi,%eax,4),%eax 234 xorl %eax, %esi 235 movl 3144(%edi,%ebx,4),%ebp 236 addl %ebp, %esi 237 xorl %eax, %eax 238 xorl %esi, %ecx 239 240 /* Round 8 */ 241 rorl $16, %ecx 242 movl 36(%edi), %esi 243 movb %ch, %al 244 movb %cl, %bl 245 rorl $16, %ecx 246 xorl %esi, %edx 247 movl 72(%edi,%eax,4),%esi 248 movl 1096(%edi,%ebx,4),%ebp 249 movb %ch, %al 250 movb %cl, %bl 251 addl %ebp, %esi 252 movl 2120(%edi,%eax,4),%eax 253 xorl %eax, %esi 254 movl 3144(%edi,%ebx,4),%ebp 255 addl %ebp, %esi 256 xorl %eax, %eax 257 xorl %esi, %edx 258 259 /* Round 9 */ 260 rorl $16, %edx 261 movl 40(%edi), %esi 262 movb %dh, %al 263 movb %dl, %bl 264 rorl $16, %edx 265 xorl %esi, %ecx 266 movl 72(%edi,%eax,4),%esi 267 movl 1096(%edi,%ebx,4),%ebp 268 movb %dh, %al 269 movb %dl, %bl 270 addl %ebp, %esi 271 movl 2120(%edi,%eax,4),%eax 272 xorl %eax, %esi 273 movl 3144(%edi,%ebx,4),%ebp 274 addl %ebp, %esi 275 xorl %eax, %eax 276 xorl %esi, %ecx 277 278 /* Round 10 */ 279 rorl $16, %ecx 280 movl 44(%edi), %esi 281 movb %ch, %al 282 movb %cl, %bl 283 rorl $16, %ecx 284 xorl %esi, %edx 285 movl 72(%edi,%eax,4),%esi 286 movl 1096(%edi,%ebx,4),%ebp 287 movb %ch, %al 288 movb %cl, %bl 289 addl %ebp, %esi 290 movl 2120(%edi,%eax,4),%eax 291 xorl %eax, %esi 292 movl 3144(%edi,%ebx,4),%ebp 293 addl %ebp, %esi 294 xorl %eax, %eax 295 xorl %esi, %edx 296 297 /* Round 11 */ 298 rorl $16, %edx 299 movl 48(%edi), %esi 300 movb %dh, %al 301 movb %dl, %bl 302 rorl $16, %edx 303 xorl %esi, %ecx 304 movl 72(%edi,%eax,4),%esi 305 movl 1096(%edi,%ebx,4),%ebp 306 movb %dh, %al 307 movb %dl, %bl 308 addl %ebp, %esi 309 movl 2120(%edi,%eax,4),%eax 310 xorl %eax, %esi 311 movl 3144(%edi,%ebx,4),%ebp 312 addl %ebp, %esi 313 xorl %eax, %eax 314 xorl %esi, %ecx 315 316 /* Round 12 */ 317 rorl $16, %ecx 318 movl 52(%edi), %esi 319 movb %ch, %al 320 movb %cl, %bl 321 rorl $16, %ecx 322 xorl %esi, %edx 323 movl 72(%edi,%eax,4),%esi 324 movl 1096(%edi,%ebx,4),%ebp 325 movb %ch, %al 326 movb %cl, %bl 327 addl %ebp, %esi 328 movl 2120(%edi,%eax,4),%eax 329 xorl %eax, %esi 330 movl 3144(%edi,%ebx,4),%ebp 331 addl %ebp, %esi 332 xorl %eax, %eax 333 xorl %esi, %edx 334 335 /* Round 13 */ 336 rorl $16, %edx 337 movl 56(%edi), %esi 338 movb %dh, %al 339 movb %dl, %bl 340 rorl $16, %edx 341 xorl %esi, %ecx 342 movl 72(%edi,%eax,4),%esi 343 movl 1096(%edi,%ebx,4),%ebp 344 movb %dh, %al 345 movb %dl, %bl 346 addl %ebp, %esi 347 movl 2120(%edi,%eax,4),%eax 348 xorl %eax, %esi 349 movl 3144(%edi,%ebx,4),%ebp 350 addl %ebp, %esi 351 xorl %eax, %eax 352 xorl %esi, %ecx 353 354 /* Round 14 */ 355 rorl $16, %ecx 356 movl 60(%edi), %esi 357 movb %ch, %al 358 movb %cl, %bl 359 rorl $16, %ecx 360 xorl %esi, %edx 361 movl 72(%edi,%eax,4),%esi 362 movl 1096(%edi,%ebx,4),%ebp 363 movb %ch, %al 364 movb %cl, %bl 365 addl %ebp, %esi 366 movl 2120(%edi,%eax,4),%eax 367 xorl %eax, %esi 368 movl 3144(%edi,%ebx,4),%ebp 369 addl %ebp, %esi 370 xorl %eax, %eax 371 xorl %esi, %edx 372 373 /* Round 15 */ 374 rorl $16, %edx 375 movl 64(%edi), %esi 376 movb %dh, %al 377 movb %dl, %bl 378 rorl $16, %edx 379 xorl %esi, %ecx 380 movl 72(%edi,%eax,4),%esi 381 movl 1096(%edi,%ebx,4),%ebp 382 movb %dh, %al 383 movb %dl, %bl 384 addl %ebp, %esi 385 movl 2120(%edi,%eax,4),%eax 386 xorl %eax, %esi 387 movl 3144(%edi,%ebx,4),%ebp 388 addl %ebp, %esi 389 xorl %eax, %eax 390 xorl %esi, %ecx 391 xorl 68(%edi), %edx 392 movl 20(%esp), %eax 393 movl %edx, (%eax) 394 movl %ecx, 4(%eax) 395 popl %edi 396 popl %esi 397 popl %ebx 398 popl %ebp 399 ret 400.L_BF_encrypt_end: 401 .size _C_LABEL(BF_encrypt),.L_BF_encrypt_end-_C_LABEL(BF_encrypt) 402 403ENTRY(BF_decrypt) 404 pushl %ebp 405 pushl %ebx 406 pushl %esi 407 pushl %edi 408 409 410 /* Load the 2 words */ 411 movl 20(%esp), %eax 412 movl (%eax), %ecx 413 movl 4(%eax), %edx 414 415 /* P pointer, s and enc flag */ 416 movl 24(%esp), %edi 417 xorl %eax, %eax 418 xorl %ebx, %ebx 419 xorl 68(%edi), %ecx 420 421 /* Round 16 */ 422 rorl $16, %ecx 423 movl 64(%edi), %esi 424 movb %ch, %al 425 movb %cl, %bl 426 rorl $16, %ecx 427 xorl %esi, %edx 428 movl 72(%edi,%eax,4),%esi 429 movl 1096(%edi,%ebx,4),%ebp 430 movb %ch, %al 431 movb %cl, %bl 432 addl %ebp, %esi 433 movl 2120(%edi,%eax,4),%eax 434 xorl %eax, %esi 435 movl 3144(%edi,%ebx,4),%ebp 436 addl %ebp, %esi 437 xorl %eax, %eax 438 xorl %esi, %edx 439 440 /* Round 15 */ 441 rorl $16, %edx 442 movl 60(%edi), %esi 443 movb %dh, %al 444 movb %dl, %bl 445 rorl $16, %edx 446 xorl %esi, %ecx 447 movl 72(%edi,%eax,4),%esi 448 movl 1096(%edi,%ebx,4),%ebp 449 movb %dh, %al 450 movb %dl, %bl 451 addl %ebp, %esi 452 movl 2120(%edi,%eax,4),%eax 453 xorl %eax, %esi 454 movl 3144(%edi,%ebx,4),%ebp 455 addl %ebp, %esi 456 xorl %eax, %eax 457 xorl %esi, %ecx 458 459 /* Round 14 */ 460 rorl $16, %ecx 461 movl 56(%edi), %esi 462 movb %ch, %al 463 movb %cl, %bl 464 rorl $16, %ecx 465 xorl %esi, %edx 466 movl 72(%edi,%eax,4),%esi 467 movl 1096(%edi,%ebx,4),%ebp 468 movb %ch, %al 469 movb %cl, %bl 470 addl %ebp, %esi 471 movl 2120(%edi,%eax,4),%eax 472 xorl %eax, %esi 473 movl 3144(%edi,%ebx,4),%ebp 474 addl %ebp, %esi 475 xorl %eax, %eax 476 xorl %esi, %edx 477 478 /* Round 13 */ 479 rorl $16, %edx 480 movl 52(%edi), %esi 481 movb %dh, %al 482 movb %dl, %bl 483 rorl $16, %edx 484 xorl %esi, %ecx 485 movl 72(%edi,%eax,4),%esi 486 movl 1096(%edi,%ebx,4),%ebp 487 movb %dh, %al 488 movb %dl, %bl 489 addl %ebp, %esi 490 movl 2120(%edi,%eax,4),%eax 491 xorl %eax, %esi 492 movl 3144(%edi,%ebx,4),%ebp 493 addl %ebp, %esi 494 xorl %eax, %eax 495 xorl %esi, %ecx 496 497 /* Round 12 */ 498 rorl $16, %ecx 499 movl 48(%edi), %esi 500 movb %ch, %al 501 movb %cl, %bl 502 rorl $16, %ecx 503 xorl %esi, %edx 504 movl 72(%edi,%eax,4),%esi 505 movl 1096(%edi,%ebx,4),%ebp 506 movb %ch, %al 507 movb %cl, %bl 508 addl %ebp, %esi 509 movl 2120(%edi,%eax,4),%eax 510 xorl %eax, %esi 511 movl 3144(%edi,%ebx,4),%ebp 512 addl %ebp, %esi 513 xorl %eax, %eax 514 xorl %esi, %edx 515 516 /* Round 11 */ 517 rorl $16, %edx 518 movl 44(%edi), %esi 519 movb %dh, %al 520 movb %dl, %bl 521 rorl $16, %edx 522 xorl %esi, %ecx 523 movl 72(%edi,%eax,4),%esi 524 movl 1096(%edi,%ebx,4),%ebp 525 movb %dh, %al 526 movb %dl, %bl 527 addl %ebp, %esi 528 movl 2120(%edi,%eax,4),%eax 529 xorl %eax, %esi 530 movl 3144(%edi,%ebx,4),%ebp 531 addl %ebp, %esi 532 xorl %eax, %eax 533 xorl %esi, %ecx 534 535 /* Round 10 */ 536 rorl $16, %ecx 537 movl 40(%edi), %esi 538 movb %ch, %al 539 movb %cl, %bl 540 rorl $16, %ecx 541 xorl %esi, %edx 542 movl 72(%edi,%eax,4),%esi 543 movl 1096(%edi,%ebx,4),%ebp 544 movb %ch, %al 545 movb %cl, %bl 546 addl %ebp, %esi 547 movl 2120(%edi,%eax,4),%eax 548 xorl %eax, %esi 549 movl 3144(%edi,%ebx,4),%ebp 550 addl %ebp, %esi 551 xorl %eax, %eax 552 xorl %esi, %edx 553 554 /* Round 9 */ 555 rorl $16, %edx 556 movl 36(%edi), %esi 557 movb %dh, %al 558 movb %dl, %bl 559 rorl $16, %edx 560 xorl %esi, %ecx 561 movl 72(%edi,%eax,4),%esi 562 movl 1096(%edi,%ebx,4),%ebp 563 movb %dh, %al 564 movb %dl, %bl 565 addl %ebp, %esi 566 movl 2120(%edi,%eax,4),%eax 567 xorl %eax, %esi 568 movl 3144(%edi,%ebx,4),%ebp 569 addl %ebp, %esi 570 xorl %eax, %eax 571 xorl %esi, %ecx 572 573 /* Round 8 */ 574 rorl $16, %ecx 575 movl 32(%edi), %esi 576 movb %ch, %al 577 movb %cl, %bl 578 rorl $16, %ecx 579 xorl %esi, %edx 580 movl 72(%edi,%eax,4),%esi 581 movl 1096(%edi,%ebx,4),%ebp 582 movb %ch, %al 583 movb %cl, %bl 584 addl %ebp, %esi 585 movl 2120(%edi,%eax,4),%eax 586 xorl %eax, %esi 587 movl 3144(%edi,%ebx,4),%ebp 588 addl %ebp, %esi 589 xorl %eax, %eax 590 xorl %esi, %edx 591 592 /* Round 7 */ 593 rorl $16, %edx 594 movl 28(%edi), %esi 595 movb %dh, %al 596 movb %dl, %bl 597 rorl $16, %edx 598 xorl %esi, %ecx 599 movl 72(%edi,%eax,4),%esi 600 movl 1096(%edi,%ebx,4),%ebp 601 movb %dh, %al 602 movb %dl, %bl 603 addl %ebp, %esi 604 movl 2120(%edi,%eax,4),%eax 605 xorl %eax, %esi 606 movl 3144(%edi,%ebx,4),%ebp 607 addl %ebp, %esi 608 xorl %eax, %eax 609 xorl %esi, %ecx 610 611 /* Round 6 */ 612 rorl $16, %ecx 613 movl 24(%edi), %esi 614 movb %ch, %al 615 movb %cl, %bl 616 rorl $16, %ecx 617 xorl %esi, %edx 618 movl 72(%edi,%eax,4),%esi 619 movl 1096(%edi,%ebx,4),%ebp 620 movb %ch, %al 621 movb %cl, %bl 622 addl %ebp, %esi 623 movl 2120(%edi,%eax,4),%eax 624 xorl %eax, %esi 625 movl 3144(%edi,%ebx,4),%ebp 626 addl %ebp, %esi 627 xorl %eax, %eax 628 xorl %esi, %edx 629 630 /* Round 5 */ 631 rorl $16, %edx 632 movl 20(%edi), %esi 633 movb %dh, %al 634 movb %dl, %bl 635 rorl $16, %edx 636 xorl %esi, %ecx 637 movl 72(%edi,%eax,4),%esi 638 movl 1096(%edi,%ebx,4),%ebp 639 movb %dh, %al 640 movb %dl, %bl 641 addl %ebp, %esi 642 movl 2120(%edi,%eax,4),%eax 643 xorl %eax, %esi 644 movl 3144(%edi,%ebx,4),%ebp 645 addl %ebp, %esi 646 xorl %eax, %eax 647 xorl %esi, %ecx 648 649 /* Round 4 */ 650 rorl $16, %ecx 651 movl 16(%edi), %esi 652 movb %ch, %al 653 movb %cl, %bl 654 rorl $16, %ecx 655 xorl %esi, %edx 656 movl 72(%edi,%eax,4),%esi 657 movl 1096(%edi,%ebx,4),%ebp 658 movb %ch, %al 659 movb %cl, %bl 660 addl %ebp, %esi 661 movl 2120(%edi,%eax,4),%eax 662 xorl %eax, %esi 663 movl 3144(%edi,%ebx,4),%ebp 664 addl %ebp, %esi 665 xorl %eax, %eax 666 xorl %esi, %edx 667 668 /* Round 3 */ 669 rorl $16, %edx 670 movl 12(%edi), %esi 671 movb %dh, %al 672 movb %dl, %bl 673 rorl $16, %edx 674 xorl %esi, %ecx 675 movl 72(%edi,%eax,4),%esi 676 movl 1096(%edi,%ebx,4),%ebp 677 movb %dh, %al 678 movb %dl, %bl 679 addl %ebp, %esi 680 movl 2120(%edi,%eax,4),%eax 681 xorl %eax, %esi 682 movl 3144(%edi,%ebx,4),%ebp 683 addl %ebp, %esi 684 xorl %eax, %eax 685 xorl %esi, %ecx 686 687 /* Round 2 */ 688 rorl $16, %ecx 689 movl 8(%edi), %esi 690 movb %ch, %al 691 movb %cl, %bl 692 rorl $16, %ecx 693 xorl %esi, %edx 694 movl 72(%edi,%eax,4),%esi 695 movl 1096(%edi,%ebx,4),%ebp 696 movb %ch, %al 697 movb %cl, %bl 698 addl %ebp, %esi 699 movl 2120(%edi,%eax,4),%eax 700 xorl %eax, %esi 701 movl 3144(%edi,%ebx,4),%ebp 702 addl %ebp, %esi 703 xorl %eax, %eax 704 xorl %esi, %edx 705 706 /* Round 1 */ 707 rorl $16, %edx 708 movl 4(%edi), %esi 709 movb %dh, %al 710 movb %dl, %bl 711 rorl $16, %edx 712 xorl %esi, %ecx 713 movl 72(%edi,%eax,4),%esi 714 movl 1096(%edi,%ebx,4),%ebp 715 movb %dh, %al 716 movb %dl, %bl 717 addl %ebp, %esi 718 movl 2120(%edi,%eax,4),%eax 719 xorl %eax, %esi 720 movl 3144(%edi,%ebx,4),%ebp 721 addl %ebp, %esi 722 xorl %eax, %eax 723 xorl %esi, %ecx 724 xorl (%edi), %edx 725 movl 20(%esp), %eax 726 movl %edx, (%eax) 727 movl %ecx, 4(%eax) 728 popl %edi 729 popl %esi 730 popl %ebx 731 popl %ebp 732 ret 733 .L_BF_decrypt_end: 734 .size _C_LABEL(BF_decrypt),.L_BF_decrypt_end-_C_LABEL(BF_decrypt) 735