1#! /usr/bin/env perl 2# Copyright 2013-2021 The OpenSSL Project Authors. All Rights Reserved. 3# 4# Licensed under the Apache License 2.0 (the "License"). You may not use 5# this file except in compliance with the License. You can obtain a copy 6# in the file LICENSE in the source distribution or at 7# https://www.openssl.org/source/license.html 8 9 10# ==================================================================== 11# Written by David S. Miller and Andy Polyakov. 12# The module is licensed under 2-clause BSD 13# license. March 2013. All rights reserved. 14# ==================================================================== 15 16###################################################################### 17# DES for SPARC T4. 18# 19# As with other hardware-assisted ciphers CBC encrypt results [for 20# aligned data] are virtually identical to critical path lengths: 21# 22# DES Triple-DES 23# CBC encrypt 4.14/4.15(*) 11.7/11.7 24# CBC decrypt 1.77/4.11(**) 6.42/7.47 25# 26# (*) numbers after slash are for 27# misaligned data; 28# (**) this is result for largest 29# block size, unlike all other 30# cases smaller blocks results 31# are better[?]; 32 33$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; 34push(@INC,"${dir}","${dir}../../perlasm"); 35require "sparcv9_modes.pl"; 36 37$output=pop and open STDOUT,">$output"; 38 39$code.=<<___; 40#ifndef __ASSEMBLER__ 41# define __ASSEMBLER__ 1 42#endif 43#include "crypto/sparc_arch.h" 44 45#ifdef __arch64__ 46.register %g2,#scratch 47.register %g3,#scratch 48#endif 49 50.text 51___ 52 53{ my ($inp,$out)=("%o0","%o1"); 54 55$code.=<<___; 56.align 32 57.globl des_t4_key_expand 58.type des_t4_key_expand,#function 59des_t4_key_expand: 60 andcc $inp, 0x7, %g0 61 alignaddr $inp, %g0, $inp 62 bz,pt %icc, 1f 63 ldd [$inp + 0x00], %f0 64 ldd [$inp + 0x08], %f2 65 faligndata %f0, %f2, %f0 661: des_kexpand %f0, 0, %f0 67 des_kexpand %f0, 1, %f2 68 std %f0, [$out + 0x00] 69 des_kexpand %f2, 3, %f6 70 std %f2, [$out + 0x08] 71 des_kexpand %f2, 2, %f4 72 des_kexpand %f6, 3, %f10 73 std %f6, [$out + 0x18] 74 des_kexpand %f6, 2, %f8 75 std %f4, [$out + 0x10] 76 des_kexpand %f10, 3, %f14 77 std %f10, [$out + 0x28] 78 des_kexpand %f10, 2, %f12 79 std %f8, [$out + 0x20] 80 des_kexpand %f14, 1, %f16 81 std %f14, [$out + 0x38] 82 des_kexpand %f16, 3, %f20 83 std %f12, [$out + 0x30] 84 des_kexpand %f16, 2, %f18 85 std %f16, [$out + 0x40] 86 des_kexpand %f20, 3, %f24 87 std %f20, [$out + 0x50] 88 des_kexpand %f20, 2, %f22 89 std %f18, [$out + 0x48] 90 des_kexpand %f24, 3, %f28 91 std %f24, [$out + 0x60] 92 des_kexpand %f24, 2, %f26 93 std %f22, [$out + 0x58] 94 des_kexpand %f28, 1, %f30 95 std %f28, [$out + 0x70] 96 std %f26, [$out + 0x68] 97 retl 98 std %f30, [$out + 0x78] 99.size des_t4_key_expand,.-des_t4_key_expand 100___ 101} 102{ my ($inp,$out,$len,$key,$ivec) = map("%o$_",(0..4)); 103 my ($ileft,$iright,$omask) = map("%g$_",(1..3)); 104 105$code.=<<___; 106.globl des_t4_cbc_encrypt 107.align 32 108des_t4_cbc_encrypt: 109 cmp $len, 0 110 be,pn $::size_t_cc, .Lcbc_abort 111 srln $len, 0, $len ! needed on v8+, "nop" on v9 112 ld [$ivec + 0], %f0 ! load ivec 113 ld [$ivec + 4], %f1 114 115 and $inp, 7, $ileft 116 andn $inp, 7, $inp 117 sll $ileft, 3, $ileft 118 mov 0xff, $omask 119 prefetch [$inp], 20 120 prefetch [$inp + 63], 20 121 sub %g0, $ileft, $iright 122 and $out, 7, %g4 123 alignaddrl $out, %g0, $out 124 srl $omask, %g4, $omask 125 srlx $len, 3, $len 126 movrz %g4, 0, $omask 127 prefetch [$out], 22 128 129 ldd [$key + 0x00], %f4 ! load key schedule 130 ldd [$key + 0x08], %f6 131 ldd [$key + 0x10], %f8 132 ldd [$key + 0x18], %f10 133 ldd [$key + 0x20], %f12 134 ldd [$key + 0x28], %f14 135 ldd [$key + 0x30], %f16 136 ldd [$key + 0x38], %f18 137 ldd [$key + 0x40], %f20 138 ldd [$key + 0x48], %f22 139 ldd [$key + 0x50], %f24 140 ldd [$key + 0x58], %f26 141 ldd [$key + 0x60], %f28 142 ldd [$key + 0x68], %f30 143 ldd [$key + 0x70], %f32 144 ldd [$key + 0x78], %f34 145 146.Ldes_cbc_enc_loop: 147 ldx [$inp + 0], %g4 148 brz,pt $ileft, 4f 149 nop 150 151 ldx [$inp + 8], %g5 152 sllx %g4, $ileft, %g4 153 srlx %g5, $iright, %g5 154 or %g5, %g4, %g4 1554: 156 movxtod %g4, %f2 157 prefetch [$inp + 8+63], 20 158 add $inp, 8, $inp 159 fxor %f2, %f0, %f0 ! ^= ivec 160 prefetch [$out + 63], 22 161 162 des_ip %f0, %f0 163 des_round %f4, %f6, %f0, %f0 164 des_round %f8, %f10, %f0, %f0 165 des_round %f12, %f14, %f0, %f0 166 des_round %f16, %f18, %f0, %f0 167 des_round %f20, %f22, %f0, %f0 168 des_round %f24, %f26, %f0, %f0 169 des_round %f28, %f30, %f0, %f0 170 des_round %f32, %f34, %f0, %f0 171 des_iip %f0, %f0 172 173 brnz,pn $omask, 2f 174 sub $len, 1, $len 175 176 std %f0, [$out + 0] 177 brnz,pt $len, .Ldes_cbc_enc_loop 178 add $out, 8, $out 179 180 st %f0, [$ivec + 0] ! write out ivec 181 retl 182 st %f1, [$ivec + 4] 183.Lcbc_abort: 184 retl 185 nop 186 187.align 16 1882: ldxa [$inp]0x82, %g4 ! avoid read-after-write hazard 189 ! and ~4x deterioration 190 ! in inp==out case 191 faligndata %f0, %f0, %f2 ! handle unaligned output 192 193 stda %f2, [$out + $omask]0xc0 ! partial store 194 add $out, 8, $out 195 orn %g0, $omask, $omask 196 stda %f2, [$out + $omask]0xc0 ! partial store 197 198 brnz,pt $len, .Ldes_cbc_enc_loop+4 199 orn %g0, $omask, $omask 200 201 st %f0, [$ivec + 0] ! write out ivec 202 retl 203 st %f1, [$ivec + 4] 204.type des_t4_cbc_encrypt,#function 205.size des_t4_cbc_encrypt,.-des_t4_cbc_encrypt 206 207.globl des_t4_cbc_decrypt 208.align 32 209des_t4_cbc_decrypt: 210 cmp $len, 0 211 be,pn $::size_t_cc, .Lcbc_abort 212 srln $len, 0, $len ! needed on v8+, "nop" on v9 213 ld [$ivec + 0], %f2 ! load ivec 214 ld [$ivec + 4], %f3 215 216 and $inp, 7, $ileft 217 andn $inp, 7, $inp 218 sll $ileft, 3, $ileft 219 mov 0xff, $omask 220 prefetch [$inp], 20 221 prefetch [$inp + 63], 20 222 sub %g0, $ileft, $iright 223 and $out, 7, %g4 224 alignaddrl $out, %g0, $out 225 srl $omask, %g4, $omask 226 srlx $len, 3, $len 227 movrz %g4, 0, $omask 228 prefetch [$out], 22 229 230 ldd [$key + 0x78], %f4 ! load key schedule 231 ldd [$key + 0x70], %f6 232 ldd [$key + 0x68], %f8 233 ldd [$key + 0x60], %f10 234 ldd [$key + 0x58], %f12 235 ldd [$key + 0x50], %f14 236 ldd [$key + 0x48], %f16 237 ldd [$key + 0x40], %f18 238 ldd [$key + 0x38], %f20 239 ldd [$key + 0x30], %f22 240 ldd [$key + 0x28], %f24 241 ldd [$key + 0x20], %f26 242 ldd [$key + 0x18], %f28 243 ldd [$key + 0x10], %f30 244 ldd [$key + 0x08], %f32 245 ldd [$key + 0x00], %f34 246 247.Ldes_cbc_dec_loop: 248 ldx [$inp + 0], %g4 249 brz,pt $ileft, 4f 250 nop 251 252 ldx [$inp + 8], %g5 253 sllx %g4, $ileft, %g4 254 srlx %g5, $iright, %g5 255 or %g5, %g4, %g4 2564: 257 movxtod %g4, %f0 258 prefetch [$inp + 8+63], 20 259 add $inp, 8, $inp 260 prefetch [$out + 63], 22 261 262 des_ip %f0, %f0 263 des_round %f4, %f6, %f0, %f0 264 des_round %f8, %f10, %f0, %f0 265 des_round %f12, %f14, %f0, %f0 266 des_round %f16, %f18, %f0, %f0 267 des_round %f20, %f22, %f0, %f0 268 des_round %f24, %f26, %f0, %f0 269 des_round %f28, %f30, %f0, %f0 270 des_round %f32, %f34, %f0, %f0 271 des_iip %f0, %f0 272 273 fxor %f2, %f0, %f0 ! ^= ivec 274 movxtod %g4, %f2 275 276 brnz,pn $omask, 2f 277 sub $len, 1, $len 278 279 std %f0, [$out + 0] 280 brnz,pt $len, .Ldes_cbc_dec_loop 281 add $out, 8, $out 282 283 st %f2, [$ivec + 0] ! write out ivec 284 retl 285 st %f3, [$ivec + 4] 286 287.align 16 2882: ldxa [$inp]0x82, %g4 ! avoid read-after-write hazard 289 ! and ~4x deterioration 290 ! in inp==out case 291 faligndata %f0, %f0, %f0 ! handle unaligned output 292 293 stda %f0, [$out + $omask]0xc0 ! partial store 294 add $out, 8, $out 295 orn %g0, $omask, $omask 296 stda %f0, [$out + $omask]0xc0 ! partial store 297 298 brnz,pt $len, .Ldes_cbc_dec_loop+4 299 orn %g0, $omask, $omask 300 301 st %f2, [$ivec + 0] ! write out ivec 302 retl 303 st %f3, [$ivec + 4] 304.type des_t4_cbc_decrypt,#function 305.size des_t4_cbc_decrypt,.-des_t4_cbc_decrypt 306___ 307 308# One might wonder why does one have back-to-back des_iip/des_ip 309# pairs between EDE passes. Indeed, aren't they inverse of each other? 310# They almost are. Outcome of the pair is 32-bit words being swapped 311# in target register. Consider pair of des_iip/des_ip as a way to 312# perform the due swap, it's actually fastest way in this case. 313 314$code.=<<___; 315.globl des_t4_ede3_cbc_encrypt 316.align 32 317des_t4_ede3_cbc_encrypt: 318 cmp $len, 0 319 be,pn $::size_t_cc, .Lcbc_abort 320 srln $len, 0, $len ! needed on v8+, "nop" on v9 321 ld [$ivec + 0], %f0 ! load ivec 322 ld [$ivec + 4], %f1 323 324 and $inp, 7, $ileft 325 andn $inp, 7, $inp 326 sll $ileft, 3, $ileft 327 mov 0xff, $omask 328 prefetch [$inp], 20 329 prefetch [$inp + 63], 20 330 sub %g0, $ileft, $iright 331 and $out, 7, %g4 332 alignaddrl $out, %g0, $out 333 srl $omask, %g4, $omask 334 srlx $len, 3, $len 335 movrz %g4, 0, $omask 336 prefetch [$out], 22 337 338 ldd [$key + 0x00], %f4 ! load key schedule 339 ldd [$key + 0x08], %f6 340 ldd [$key + 0x10], %f8 341 ldd [$key + 0x18], %f10 342 ldd [$key + 0x20], %f12 343 ldd [$key + 0x28], %f14 344 ldd [$key + 0x30], %f16 345 ldd [$key + 0x38], %f18 346 ldd [$key + 0x40], %f20 347 ldd [$key + 0x48], %f22 348 ldd [$key + 0x50], %f24 349 ldd [$key + 0x58], %f26 350 ldd [$key + 0x60], %f28 351 ldd [$key + 0x68], %f30 352 ldd [$key + 0x70], %f32 353 ldd [$key + 0x78], %f34 354 355.Ldes_ede3_cbc_enc_loop: 356 ldx [$inp + 0], %g4 357 brz,pt $ileft, 4f 358 nop 359 360 ldx [$inp + 8], %g5 361 sllx %g4, $ileft, %g4 362 srlx %g5, $iright, %g5 363 or %g5, %g4, %g4 3644: 365 movxtod %g4, %f2 366 prefetch [$inp + 8+63], 20 367 add $inp, 8, $inp 368 fxor %f2, %f0, %f0 ! ^= ivec 369 prefetch [$out + 63], 22 370 371 des_ip %f0, %f0 372 des_round %f4, %f6, %f0, %f0 373 des_round %f8, %f10, %f0, %f0 374 des_round %f12, %f14, %f0, %f0 375 des_round %f16, %f18, %f0, %f0 376 ldd [$key + 0x100-0x08], %f36 377 ldd [$key + 0x100-0x10], %f38 378 des_round %f20, %f22, %f0, %f0 379 ldd [$key + 0x100-0x18], %f40 380 ldd [$key + 0x100-0x20], %f42 381 des_round %f24, %f26, %f0, %f0 382 ldd [$key + 0x100-0x28], %f44 383 ldd [$key + 0x100-0x30], %f46 384 des_round %f28, %f30, %f0, %f0 385 ldd [$key + 0x100-0x38], %f48 386 ldd [$key + 0x100-0x40], %f50 387 des_round %f32, %f34, %f0, %f0 388 ldd [$key + 0x100-0x48], %f52 389 ldd [$key + 0x100-0x50], %f54 390 des_iip %f0, %f0 391 392 ldd [$key + 0x100-0x58], %f56 393 ldd [$key + 0x100-0x60], %f58 394 des_ip %f0, %f0 395 ldd [$key + 0x100-0x68], %f60 396 ldd [$key + 0x100-0x70], %f62 397 des_round %f36, %f38, %f0, %f0 398 ldd [$key + 0x100-0x78], %f36 399 ldd [$key + 0x100-0x80], %f38 400 des_round %f40, %f42, %f0, %f0 401 des_round %f44, %f46, %f0, %f0 402 des_round %f48, %f50, %f0, %f0 403 ldd [$key + 0x100+0x00], %f40 404 ldd [$key + 0x100+0x08], %f42 405 des_round %f52, %f54, %f0, %f0 406 ldd [$key + 0x100+0x10], %f44 407 ldd [$key + 0x100+0x18], %f46 408 des_round %f56, %f58, %f0, %f0 409 ldd [$key + 0x100+0x20], %f48 410 ldd [$key + 0x100+0x28], %f50 411 des_round %f60, %f62, %f0, %f0 412 ldd [$key + 0x100+0x30], %f52 413 ldd [$key + 0x100+0x38], %f54 414 des_round %f36, %f38, %f0, %f0 415 ldd [$key + 0x100+0x40], %f56 416 ldd [$key + 0x100+0x48], %f58 417 des_iip %f0, %f0 418 419 ldd [$key + 0x100+0x50], %f60 420 ldd [$key + 0x100+0x58], %f62 421 des_ip %f0, %f0 422 ldd [$key + 0x100+0x60], %f36 423 ldd [$key + 0x100+0x68], %f38 424 des_round %f40, %f42, %f0, %f0 425 ldd [$key + 0x100+0x70], %f40 426 ldd [$key + 0x100+0x78], %f42 427 des_round %f44, %f46, %f0, %f0 428 des_round %f48, %f50, %f0, %f0 429 des_round %f52, %f54, %f0, %f0 430 des_round %f56, %f58, %f0, %f0 431 des_round %f60, %f62, %f0, %f0 432 des_round %f36, %f38, %f0, %f0 433 des_round %f40, %f42, %f0, %f0 434 des_iip %f0, %f0 435 436 brnz,pn $omask, 2f 437 sub $len, 1, $len 438 439 std %f0, [$out + 0] 440 brnz,pt $len, .Ldes_ede3_cbc_enc_loop 441 add $out, 8, $out 442 443 st %f0, [$ivec + 0] ! write out ivec 444 retl 445 st %f1, [$ivec + 4] 446 447.align 16 4482: ldxa [$inp]0x82, %g4 ! avoid read-after-write hazard 449 ! and ~2x deterioration 450 ! in inp==out case 451 faligndata %f0, %f0, %f2 ! handle unaligned output 452 453 stda %f2, [$out + $omask]0xc0 ! partial store 454 add $out, 8, $out 455 orn %g0, $omask, $omask 456 stda %f2, [$out + $omask]0xc0 ! partial store 457 458 brnz,pt $len, .Ldes_ede3_cbc_enc_loop+4 459 orn %g0, $omask, $omask 460 461 st %f0, [$ivec + 0] ! write out ivec 462 retl 463 st %f1, [$ivec + 4] 464.type des_t4_ede3_cbc_encrypt,#function 465.size des_t4_ede3_cbc_encrypt,.-des_t4_ede3_cbc_encrypt 466 467.globl des_t4_ede3_cbc_decrypt 468.align 32 469des_t4_ede3_cbc_decrypt: 470 cmp $len, 0 471 be,pn $::size_t_cc, .Lcbc_abort 472 srln $len, 0, $len ! needed on v8+, "nop" on v9 473 ld [$ivec + 0], %f2 ! load ivec 474 ld [$ivec + 4], %f3 475 476 and $inp, 7, $ileft 477 andn $inp, 7, $inp 478 sll $ileft, 3, $ileft 479 mov 0xff, $omask 480 prefetch [$inp], 20 481 prefetch [$inp + 63], 20 482 sub %g0, $ileft, $iright 483 and $out, 7, %g4 484 alignaddrl $out, %g0, $out 485 srl $omask, %g4, $omask 486 srlx $len, 3, $len 487 movrz %g4, 0, $omask 488 prefetch [$out], 22 489 490 ldd [$key + 0x100+0x78], %f4 ! load key schedule 491 ldd [$key + 0x100+0x70], %f6 492 ldd [$key + 0x100+0x68], %f8 493 ldd [$key + 0x100+0x60], %f10 494 ldd [$key + 0x100+0x58], %f12 495 ldd [$key + 0x100+0x50], %f14 496 ldd [$key + 0x100+0x48], %f16 497 ldd [$key + 0x100+0x40], %f18 498 ldd [$key + 0x100+0x38], %f20 499 ldd [$key + 0x100+0x30], %f22 500 ldd [$key + 0x100+0x28], %f24 501 ldd [$key + 0x100+0x20], %f26 502 ldd [$key + 0x100+0x18], %f28 503 ldd [$key + 0x100+0x10], %f30 504 ldd [$key + 0x100+0x08], %f32 505 ldd [$key + 0x100+0x00], %f34 506 507.Ldes_ede3_cbc_dec_loop: 508 ldx [$inp + 0], %g4 509 brz,pt $ileft, 4f 510 nop 511 512 ldx [$inp + 8], %g5 513 sllx %g4, $ileft, %g4 514 srlx %g5, $iright, %g5 515 or %g5, %g4, %g4 5164: 517 movxtod %g4, %f0 518 prefetch [$inp + 8+63], 20 519 add $inp, 8, $inp 520 prefetch [$out + 63], 22 521 522 des_ip %f0, %f0 523 des_round %f4, %f6, %f0, %f0 524 des_round %f8, %f10, %f0, %f0 525 des_round %f12, %f14, %f0, %f0 526 des_round %f16, %f18, %f0, %f0 527 ldd [$key + 0x80+0x00], %f36 528 ldd [$key + 0x80+0x08], %f38 529 des_round %f20, %f22, %f0, %f0 530 ldd [$key + 0x80+0x10], %f40 531 ldd [$key + 0x80+0x18], %f42 532 des_round %f24, %f26, %f0, %f0 533 ldd [$key + 0x80+0x20], %f44 534 ldd [$key + 0x80+0x28], %f46 535 des_round %f28, %f30, %f0, %f0 536 ldd [$key + 0x80+0x30], %f48 537 ldd [$key + 0x80+0x38], %f50 538 des_round %f32, %f34, %f0, %f0 539 ldd [$key + 0x80+0x40], %f52 540 ldd [$key + 0x80+0x48], %f54 541 des_iip %f0, %f0 542 543 ldd [$key + 0x80+0x50], %f56 544 ldd [$key + 0x80+0x58], %f58 545 des_ip %f0, %f0 546 ldd [$key + 0x80+0x60], %f60 547 ldd [$key + 0x80+0x68], %f62 548 des_round %f36, %f38, %f0, %f0 549 ldd [$key + 0x80+0x70], %f36 550 ldd [$key + 0x80+0x78], %f38 551 des_round %f40, %f42, %f0, %f0 552 des_round %f44, %f46, %f0, %f0 553 des_round %f48, %f50, %f0, %f0 554 ldd [$key + 0x80-0x08], %f40 555 ldd [$key + 0x80-0x10], %f42 556 des_round %f52, %f54, %f0, %f0 557 ldd [$key + 0x80-0x18], %f44 558 ldd [$key + 0x80-0x20], %f46 559 des_round %f56, %f58, %f0, %f0 560 ldd [$key + 0x80-0x28], %f48 561 ldd [$key + 0x80-0x30], %f50 562 des_round %f60, %f62, %f0, %f0 563 ldd [$key + 0x80-0x38], %f52 564 ldd [$key + 0x80-0x40], %f54 565 des_round %f36, %f38, %f0, %f0 566 ldd [$key + 0x80-0x48], %f56 567 ldd [$key + 0x80-0x50], %f58 568 des_iip %f0, %f0 569 570 ldd [$key + 0x80-0x58], %f60 571 ldd [$key + 0x80-0x60], %f62 572 des_ip %f0, %f0 573 ldd [$key + 0x80-0x68], %f36 574 ldd [$key + 0x80-0x70], %f38 575 des_round %f40, %f42, %f0, %f0 576 ldd [$key + 0x80-0x78], %f40 577 ldd [$key + 0x80-0x80], %f42 578 des_round %f44, %f46, %f0, %f0 579 des_round %f48, %f50, %f0, %f0 580 des_round %f52, %f54, %f0, %f0 581 des_round %f56, %f58, %f0, %f0 582 des_round %f60, %f62, %f0, %f0 583 des_round %f36, %f38, %f0, %f0 584 des_round %f40, %f42, %f0, %f0 585 des_iip %f0, %f0 586 587 fxor %f2, %f0, %f0 ! ^= ivec 588 movxtod %g4, %f2 589 590 brnz,pn $omask, 2f 591 sub $len, 1, $len 592 593 std %f0, [$out + 0] 594 brnz,pt $len, .Ldes_ede3_cbc_dec_loop 595 add $out, 8, $out 596 597 st %f2, [$ivec + 0] ! write out ivec 598 retl 599 st %f3, [$ivec + 4] 600 601.align 16 6022: ldxa [$inp]0x82, %g4 ! avoid read-after-write hazard 603 ! and ~3x deterioration 604 ! in inp==out case 605 faligndata %f0, %f0, %f0 ! handle unaligned output 606 607 stda %f0, [$out + $omask]0xc0 ! partial store 608 add $out, 8, $out 609 orn %g0, $omask, $omask 610 stda %f0, [$out + $omask]0xc0 ! partial store 611 612 brnz,pt $len, .Ldes_ede3_cbc_dec_loop+4 613 orn %g0, $omask, $omask 614 615 st %f2, [$ivec + 0] ! write out ivec 616 retl 617 st %f3, [$ivec + 4] 618.type des_t4_ede3_cbc_decrypt,#function 619.size des_t4_ede3_cbc_decrypt,.-des_t4_ede3_cbc_decrypt 620___ 621} 622$code.=<<___; 623.asciz "DES for SPARC T4, David S. Miller, Andy Polyakov" 624.align 4 625___ 626 627&emit_assembler(); 628 629close STDOUT or die "error closing STDOUT: $!"; 630
