crypto/sha/asm/sha512-mips.pl

   1 #! /usr/bin/env perl
   2 # Copyright 2010-2020 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 Andy Polyakov <appro@openssl.org> for the OpenSSL
  12 # project. The module is, however, dual licensed under OpenSSL and
  13 # CRYPTOGAMS licenses depending on where you obtain it. For further
  14 # details see http://www.openssl.org/~appro/cryptogams/.
  15 # ====================================================================
  16
  17 # SHA2 block procedures for MIPS.
  18
  19 # October 2010.
  20 #
  21 # SHA256 performance improvement on MIPS R5000 CPU is ~27% over gcc-
  22 # generated code in o32 build and ~55% in n32/64 build. SHA512 [which
  23 # for now can only be compiled for MIPS64 ISA] improvement is modest
  24 # ~17%, but it comes for free, because it's same instruction sequence.
  25 # Improvement coefficients are for aligned input.
  26
  27 # September 2012.
  28 #
  29 # Add MIPS[32|64]R2 code (>25% less instructions).
  30
  31 ######################################################################
  32 # There is a number of MIPS ABI in use, O32 and N32/64 are most
  33 # widely used. Then there is a new contender: NUBI. It appears that if
  34 # one picks the latter, it's possible to arrange code in ABI neutral
  35 # manner. Therefore let's stick to NUBI register layout:
  36 #
  37 ($zero,$at,$t0,$t1,$t2)=map("\$$_",(0..2,24,25));
  38 ($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11));
  39 ($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7,$s8,$s9,$s10,$s11)=map("\$$_",(12..23));
  40 ($gp,$tp,$sp,$fp,$ra)=map("\$$_",(3,28..31));
  41 #
  42 # The return value is placed in $a0. Following coding rules facilitate
  43 # interoperability:
  44 #
  45 # - never ever touch $tp, "thread pointer", former $gp [o32 can be
  46 #   excluded from the rule, because it's specified volatile];
  47 # - copy return value to $t0, former $v0 [or to $a0 if you're adapting
  48 #   old code];
  49 # - on O32 populate $a4-$a7 with 'lw $aN,4*N($sp)' if necessary;
  50 #
  51 # For reference here is register layout for N32/64 MIPS ABIs:
  52 #
  53 # ($zero,$at,$v0,$v1)=map("\$$_",(0..3));
  54 # ($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11));
  55 # ($t0,$t1,$t2,$t3,$t8,$t9)=map("\$$_",(12..15,24,25));
  56 # ($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7)=map("\$$_",(16..23));
  57 # ($gp,$sp,$fp,$ra)=map("\$$_",(28..31));
  58 #
  59 # if $output doesn't have an extension, it's not an output file
  60 # so use it for $flavour.
  61
  62 # $output is the last argument if it looks like a file (it has an extension)
  63 # $flavour is the first argument if it doesn't look like a file
  64 $output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
  65 # supported flavours are o32,n32,64,nubi32,nubi64, default is o32
  66 $flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : "o32";
  67
  68 if ($flavour =~ /64|n32/i) {
  69         $PTR_LA="dla";
  70         $PTR_ADD="daddu";       # incidentally works even on n32
  71         $PTR_SUB="dsubu";       # incidentally works even on n32
  72         $REG_S="sd";
  73         $REG_L="ld";
  74         $PTR_SLL="dsll";        # incidentally works even on n32
  75         $SZREG=8;
  76 } else {
  77         $PTR_LA="la";
  78         $PTR_ADD="addu";
  79         $PTR_SUB="subu";
  80         $REG_S="sw";
  81         $REG_L="lw";
  82         $PTR_SLL="sll";
  83         $SZREG=4;
  84 }
  85 $pf = ($flavour =~ /nubi/i) ? $t0 : $t2;
  86 #
  87 # <appro@openssl.org>
  88 #
  89 ######################################################################
  90
  91 $big_endian=(`echo MIPSEB | $ENV{CC} -E -`=~/MIPSEB/)?0:1 if ($ENV{CC});
  92
  93 open STDOUT,">$output";
  94
  95 if (!defined($big_endian)) { $big_endian=(unpack('L',pack('N',1))==1); }
  96
  97 if ($output =~ /512/) {
  98         $label="512";
  99         $SZ=8;
 100         $LD="ld";               # load from memory
 101         $ST="sd";               # store to memory
 102         $SLL="dsll";            # shift left logical
 103         $SRL="dsrl";            # shift right logical
 104         $ADDU="daddu";
 105         $ROTR="drotr";
 106         @Sigma0=(28,34,39);
 107         @Sigma1=(14,18,41);
 108         @sigma0=( 7, 1, 8);     # right shift first
 109         @sigma1=( 6,19,61);     # right shift first
 110         $lastK=0x817;
 111         $rounds=80;
 112 } else {
 113         $label="256";
 114         $SZ=4;
 115         $LD="lw";               # load from memory
 116         $ST="sw";               # store to memory
 117         $SLL="sll";             # shift left logical
 118         $SRL="srl";             # shift right logical
 119         $ADDU="addu";
 120         $ROTR="rotr";
 121         @Sigma0=( 2,13,22);
 122         @Sigma1=( 6,11,25);
 123         @sigma0=( 3, 7,18);     # right shift first
 124         @sigma1=(10,17,19);     # right shift first
 125         $lastK=0x8f2;
 126         $rounds=64;
 127 }
 128
 129 $MSB = $big_endian ? 0 : ($SZ-1);
 130 $LSB = ($SZ-1)&~$MSB;
 131
 132 @V=($A,$B,$C,$D,$E,$F,$G,$H)=map("\$$_",(1,2,3,7,24,25,30,31));
 133 @X=map("\$$_",(8..23));
 134
 135 $ctx=$a0;
 136 $inp=$a1;
 137 $len=$a2;       $Ktbl=$len;
 138
 139 sub BODY_00_15 {
 140 my ($i,$a,$b,$c,$d,$e,$f,$g,$h)=@_;
 141 my ($T1,$tmp0,$tmp1,$tmp2)=(@X[4],@X[5],@X[6],@X[7]);
 142
 143 $code.=<<___ if ($i<15);
 144 #if defined(_MIPS_ARCH_MIPS32R6) || defined(_MIPS_ARCH_MIPS64R6)
 145         ${LD}   @X[1],`($i+1)*$SZ`($inp)
 146 #else
 147         ${LD}l  @X[1],`($i+1)*$SZ+$MSB`($inp)
 148         ${LD}r  @X[1],`($i+1)*$SZ+$LSB`($inp)
 149 #endif
 150 ___
 151 $code.=<<___    if (!$big_endian && $i<16 && $SZ==4);
 152 #if defined(_MIPS_ARCH_MIPS32R2) || defined(_MIPS_ARCH_MIPS64R2)
 153         wsbh    @X[0],@X[0]             # byte swap($i)
 154         rotr    @X[0],@X[0],16
 155 #else
 156         srl     $tmp0,@X[0],24          # byte swap($i)
 157         srl     $tmp1,@X[0],8
 158         andi    $tmp2,@X[0],0xFF00
 159         sll     @X[0],@X[0],24
 160         andi    $tmp1,0xFF00
 161         sll     $tmp2,$tmp2,8
 162         or      @X[0],$tmp0
 163         or      $tmp1,$tmp2
 164         or      @X[0],$tmp1
 165 #endif
 166 ___
 167 $code.=<<___    if (!$big_endian && $i<16 && $SZ==8);
 168 #if defined(_MIPS_ARCH_MIPS64R2)
 169         dsbh    @X[0],@X[0]             # byte swap($i)
 170         dshd    @X[0],@X[0]
 171 #else
 172         ori     $tmp0,$zero,0xFF
 173         dsll    $tmp2,$tmp0,32
 174         or      $tmp0,$tmp2             # 0x000000FF000000FF
 175         and     $tmp1,@X[0],$tmp0       # byte swap($i)
 176         dsrl    $tmp2,@X[0],24
 177         dsll    $tmp1,24
 178         and     $tmp2,$tmp0
 179         dsll    $tmp0,8                 # 0x0000FF000000FF00
 180         or      $tmp1,$tmp2
 181         and     $tmp2,@X[0],$tmp0
 182         dsrl    @X[0],8
 183         dsll    $tmp2,8
 184         and     @X[0],$tmp0
 185         or      $tmp1,$tmp2
 186         or      @X[0],$tmp1
 187         dsrl    $tmp1,@X[0],32
 188         dsll    @X[0],32
 189         or      @X[0],$tmp1
 190 #endif
 191 ___
 192 $code.=<<___;
 193 #if defined(_MIPS_ARCH_MIPS32R2) || defined(_MIPS_ARCH_MIPS64R2)
 194         xor     $tmp2,$f,$g                     # $i
 195         $ROTR   $tmp0,$e,@Sigma1[0]
 196         $ADDU   $T1,$X[0],$h
 197         $ROTR   $tmp1,$e,@Sigma1[1]
 198         and     $tmp2,$e
 199         $ROTR   $h,$e,@Sigma1[2]
 200         xor     $tmp0,$tmp1
 201         $ROTR   $tmp1,$a,@Sigma0[0]
 202         xor     $tmp2,$g                        # Ch(e,f,g)
 203         xor     $tmp0,$h                        # Sigma1(e)
 204
 205         $ROTR   $h,$a,@Sigma0[1]
 206         $ADDU   $T1,$tmp2
 207         $LD     $tmp2,`$i*$SZ`($Ktbl)           # K[$i]
 208         xor     $h,$tmp1
 209         $ROTR   $tmp1,$a,@Sigma0[2]
 210         $ADDU   $T1,$tmp0
 211         and     $tmp0,$b,$c
 212         xor     $h,$tmp1                        # Sigma0(a)
 213         xor     $tmp1,$b,$c
 214 #else
 215         $ADDU   $T1,$X[0],$h                    # $i
 216         $SRL    $h,$e,@Sigma1[0]
 217         xor     $tmp2,$f,$g
 218         $SLL    $tmp1,$e,`$SZ*8-@Sigma1[2]`
 219         and     $tmp2,$e
 220         $SRL    $tmp0,$e,@Sigma1[1]
 221         xor     $h,$tmp1
 222         $SLL    $tmp1,$e,`$SZ*8-@Sigma1[1]`
 223         xor     $h,$tmp0
 224         $SRL    $tmp0,$e,@Sigma1[2]
 225         xor     $h,$tmp1
 226         $SLL    $tmp1,$e,`$SZ*8-@Sigma1[0]`
 227         xor     $h,$tmp0
 228         xor     $tmp2,$g                        # Ch(e,f,g)
 229         xor     $tmp0,$tmp1,$h                  # Sigma1(e)
 230
 231         $SRL    $h,$a,@Sigma0[0]
 232         $ADDU   $T1,$tmp2
 233         $LD     $tmp2,`$i*$SZ`($Ktbl)           # K[$i]
 234         $SLL    $tmp1,$a,`$SZ*8-@Sigma0[2]`
 235         $ADDU   $T1,$tmp0
 236         $SRL    $tmp0,$a,@Sigma0[1]
 237         xor     $h,$tmp1
 238         $SLL    $tmp1,$a,`$SZ*8-@Sigma0[1]`
 239         xor     $h,$tmp0
 240         $SRL    $tmp0,$a,@Sigma0[2]
 241         xor     $h,$tmp1
 242         $SLL    $tmp1,$a,`$SZ*8-@Sigma0[0]`
 243         xor     $h,$tmp0
 244         and     $tmp0,$b,$c
 245         xor     $h,$tmp1                        # Sigma0(a)
 246         xor     $tmp1,$b,$c
 247 #endif
 248         $ST     @X[0],`($i%16)*$SZ`($sp)        # offload to ring buffer
 249         $ADDU   $h,$tmp0
 250         and     $tmp1,$a
 251         $ADDU   $T1,$tmp2                       # +=K[$i]
 252         $ADDU   $h,$tmp1                        # +=Maj(a,b,c)
 253         $ADDU   $d,$T1
 254         $ADDU   $h,$T1
 255 ___
 256 $code.=<<___ if ($i>=13);
 257         $LD     @X[3],`(($i+3)%16)*$SZ`($sp)    # prefetch from ring buffer
 258 ___
 259 }
 260
 261 sub BODY_16_XX {
 262 my $i=@_[0];
 263 my ($tmp0,$tmp1,$tmp2,$tmp3)=(@X[4],@X[5],@X[6],@X[7]);
 264
 265 $code.=<<___;
 266 #if defined(_MIPS_ARCH_MIPS32R2) || defined(_MIPS_ARCH_MIPS64R2)
 267         $SRL    $tmp2,@X[1],@sigma0[0]          # Xupdate($i)
 268         $ROTR   $tmp0,@X[1],@sigma0[1]
 269         $ADDU   @X[0],@X[9]                     # +=X[i+9]
 270         xor     $tmp2,$tmp0
 271         $ROTR   $tmp0,@X[1],@sigma0[2]
 272
 273         $SRL    $tmp3,@X[14],@sigma1[0]
 274         $ROTR   $tmp1,@X[14],@sigma1[1]
 275         xor     $tmp2,$tmp0                     # sigma0(X[i+1])
 276         $ROTR   $tmp0,@X[14],@sigma1[2]
 277         xor     $tmp3,$tmp1
 278         $ADDU   @X[0],$tmp2
 279 #else
 280         $SRL    $tmp2,@X[1],@sigma0[0]          # Xupdate($i)
 281         $ADDU   @X[0],@X[9]                     # +=X[i+9]
 282         $SLL    $tmp1,@X[1],`$SZ*8-@sigma0[2]`
 283         $SRL    $tmp0,@X[1],@sigma0[1]
 284         xor     $tmp2,$tmp1
 285         $SLL    $tmp1,`@sigma0[2]-@sigma0[1]`
 286         xor     $tmp2,$tmp0
 287         $SRL    $tmp0,@X[1],@sigma0[2]
 288         xor     $tmp2,$tmp1
 289
 290         $SRL    $tmp3,@X[14],@sigma1[0]
 291         xor     $tmp2,$tmp0                     # sigma0(X[i+1])
 292         $SLL    $tmp1,@X[14],`$SZ*8-@sigma1[2]`
 293         $ADDU   @X[0],$tmp2
 294         $SRL    $tmp0,@X[14],@sigma1[1]
 295         xor     $tmp3,$tmp1
 296         $SLL    $tmp1,`@sigma1[2]-@sigma1[1]`
 297         xor     $tmp3,$tmp0
 298         $SRL    $tmp0,@X[14],@sigma1[2]
 299         xor     $tmp3,$tmp1
 300 #endif
 301         xor     $tmp3,$tmp0                     # sigma1(X[i+14])
 302         $ADDU   @X[0],$tmp3
 303 ___
 304         &BODY_00_15(@_);
 305 }
 306
 307 $FRAMESIZE=16*$SZ+16*$SZREG;
 308 $SAVED_REGS_MASK = ($flavour =~ /nubi/i) ? "0xc0fff008" : "0xc0ff0000";
 309
 310 $code.=<<___;
 311 #include "mips_arch.h"
 312
 313 .text
 314 .set    noat
 315 #if !defined(__mips_eabi) && (!defined(__vxworks) || defined(__pic__))
 316 .option pic2
 317 #endif
 318
 319 .align  5
 320 .globl  sha${label}_block_data_order
 321 .ent    sha${label}_block_data_order
 322 sha${label}_block_data_order:
 323         .frame  $sp,$FRAMESIZE,$ra
 324         .mask   $SAVED_REGS_MASK,-$SZREG
 325         .set    noreorder
 326 ___
 327 $code.=<<___ if ($flavour =~ /o32/i);   # o32 PIC-ification
 328         .cpload $pf
 329 ___
 330 $code.=<<___;
 331         $PTR_SUB $sp,$FRAMESIZE
 332         $REG_S  $ra,$FRAMESIZE-1*$SZREG($sp)
 333         $REG_S  $fp,$FRAMESIZE-2*$SZREG($sp)
 334         $REG_S  $s11,$FRAMESIZE-3*$SZREG($sp)
 335         $REG_S  $s10,$FRAMESIZE-4*$SZREG($sp)
 336         $REG_S  $s9,$FRAMESIZE-5*$SZREG($sp)
 337         $REG_S  $s8,$FRAMESIZE-6*$SZREG($sp)
 338         $REG_S  $s7,$FRAMESIZE-7*$SZREG($sp)
 339         $REG_S  $s6,$FRAMESIZE-8*$SZREG($sp)
 340         $REG_S  $s5,$FRAMESIZE-9*$SZREG($sp)
 341         $REG_S  $s4,$FRAMESIZE-10*$SZREG($sp)
 342 ___
 343 $code.=<<___ if ($flavour =~ /nubi/i);  # optimize non-nubi prologue
 344         $REG_S  $s3,$FRAMESIZE-11*$SZREG($sp)
 345         $REG_S  $s2,$FRAMESIZE-12*$SZREG($sp)
 346         $REG_S  $s1,$FRAMESIZE-13*$SZREG($sp)
 347         $REG_S  $s0,$FRAMESIZE-14*$SZREG($sp)
 348         $REG_S  $gp,$FRAMESIZE-15*$SZREG($sp)
 349 ___
 350 $code.=<<___;
 351         $PTR_SLL @X[15],$len,`log(16*$SZ)/log(2)`
 352 ___
 353 $code.=<<___ if ($flavour !~ /o32/i);   # non-o32 PIC-ification
 354         .cplocal        $Ktbl
 355         .cpsetup        $pf,$zero,sha${label}_block_data_order
 356 ___
 357 $code.=<<___;
 358         .set    reorder
 359         $PTR_LA $Ktbl,K${label}         # PIC-ified 'load address'
 360
 361         $LD     $A,0*$SZ($ctx)          # load context
 362         $LD     $B,1*$SZ($ctx)
 363         $LD     $C,2*$SZ($ctx)
 364         $LD     $D,3*$SZ($ctx)
 365         $LD     $E,4*$SZ($ctx)
 366         $LD     $F,5*$SZ($ctx)
 367         $LD     $G,6*$SZ($ctx)
 368         $LD     $H,7*$SZ($ctx)
 369
 370         $PTR_ADD @X[15],$inp            # pointer to the end of input
 371         $REG_S  @X[15],16*$SZ($sp)
 372         b       .Loop
 373
 374 .align  5
 375 .Loop:
 376 #if defined(_MIPS_ARCH_MIPS32R6) || defined(_MIPS_ARCH_MIPS64R6)
 377         ${LD}   @X[0],($inp)
 378 #else
 379         ${LD}l  @X[0],$MSB($inp)
 380         ${LD}r  @X[0],$LSB($inp)
 381 #endif
 382 ___
 383 for ($i=0;$i<16;$i++)
 384 { &BODY_00_15($i,@V); unshift(@V,pop(@V)); push(@X,shift(@X)); }
 385 $code.=<<___;
 386         b       .L16_xx
 387 .align  4
 388 .L16_xx:
 389 ___
 390 for (;$i<32;$i++)
 391 { &BODY_16_XX($i,@V); unshift(@V,pop(@V)); push(@X,shift(@X)); }
 392 $code.=<<___;
 393         and     @X[6],0xfff
 394         li      @X[7],$lastK
 395         .set    noreorder
 396         bne     @X[6],@X[7],.L16_xx
 397         $PTR_ADD $Ktbl,16*$SZ           # Ktbl+=16
 398
 399         $REG_L  @X[15],16*$SZ($sp)      # restore pointer to the end of input
 400         $LD     @X[0],0*$SZ($ctx)
 401         $LD     @X[1],1*$SZ($ctx)
 402         $LD     @X[2],2*$SZ($ctx)
 403         $PTR_ADD $inp,16*$SZ
 404         $LD     @X[3],3*$SZ($ctx)
 405         $ADDU   $A,@X[0]
 406         $LD     @X[4],4*$SZ($ctx)
 407         $ADDU   $B,@X[1]
 408         $LD     @X[5],5*$SZ($ctx)
 409         $ADDU   $C,@X[2]
 410         $LD     @X[6],6*$SZ($ctx)
 411         $ADDU   $D,@X[3]
 412         $LD     @X[7],7*$SZ($ctx)
 413         $ADDU   $E,@X[4]
 414         $ST     $A,0*$SZ($ctx)
 415         $ADDU   $F,@X[5]
 416         $ST     $B,1*$SZ($ctx)
 417         $ADDU   $G,@X[6]
 418         $ST     $C,2*$SZ($ctx)
 419         $ADDU   $H,@X[7]
 420         $ST     $D,3*$SZ($ctx)
 421         $ST     $E,4*$SZ($ctx)
 422         $ST     $F,5*$SZ($ctx)
 423         $ST     $G,6*$SZ($ctx)
 424         $ST     $H,7*$SZ($ctx)
 425
 426         bne     $inp,@X[15],.Loop
 427         $PTR_SUB $Ktbl,`($rounds-16)*$SZ`       # rewind $Ktbl
 428
 429         $REG_L  $ra,$FRAMESIZE-1*$SZREG($sp)
 430         $REG_L  $fp,$FRAMESIZE-2*$SZREG($sp)
 431         $REG_L  $s11,$FRAMESIZE-3*$SZREG($sp)
 432         $REG_L  $s10,$FRAMESIZE-4*$SZREG($sp)
 433         $REG_L  $s9,$FRAMESIZE-5*$SZREG($sp)
 434         $REG_L  $s8,$FRAMESIZE-6*$SZREG($sp)
 435         $REG_L  $s7,$FRAMESIZE-7*$SZREG($sp)
 436         $REG_L  $s6,$FRAMESIZE-8*$SZREG($sp)
 437         $REG_L  $s5,$FRAMESIZE-9*$SZREG($sp)
 438         $REG_L  $s4,$FRAMESIZE-10*$SZREG($sp)
 439 ___
 440 $code.=<<___ if ($flavour =~ /nubi/i);
 441         $REG_L  $s3,$FRAMESIZE-11*$SZREG($sp)
 442         $REG_L  $s2,$FRAMESIZE-12*$SZREG($sp)
 443         $REG_L  $s1,$FRAMESIZE-13*$SZREG($sp)
 444         $REG_L  $s0,$FRAMESIZE-14*$SZREG($sp)
 445         $REG_L  $gp,$FRAMESIZE-15*$SZREG($sp)
 446 ___
 447 $code.=<<___;
 448         jr      $ra
 449         $PTR_ADD $sp,$FRAMESIZE
 450 .end    sha${label}_block_data_order
 451
 452 .rdata
 453 .align  5
 454 K${label}:
 455 ___
 456 if ($SZ==4) {
 457 $code.=<<___;
 458         .word   0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5
 459         .word   0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5
 460         .word   0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3
 461         .word   0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174
 462         .word   0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc
 463         .word   0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da
 464         .word   0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7
 465         .word   0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967
 466         .word   0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13
 467         .word   0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85
 468         .word   0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3
 469         .word   0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070
 470         .word   0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5
 471         .word   0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3
 472         .word   0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208
 473         .word   0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
 474 ___
 475 } else {
 476 $code.=<<___;
 477         .dword  0x428a2f98d728ae22, 0x7137449123ef65cd
 478         .dword  0xb5c0fbcfec4d3b2f, 0xe9b5dba58189dbbc
 479         .dword  0x3956c25bf348b538, 0x59f111f1b605d019
 480         .dword  0x923f82a4af194f9b, 0xab1c5ed5da6d8118
 481         .dword  0xd807aa98a3030242, 0x12835b0145706fbe
 482         .dword  0x243185be4ee4b28c, 0x550c7dc3d5ffb4e2
 483         .dword  0x72be5d74f27b896f, 0x80deb1fe3b1696b1
 484         .dword  0x9bdc06a725c71235, 0xc19bf174cf692694
 485         .dword  0xe49b69c19ef14ad2, 0xefbe4786384f25e3
 486         .dword  0x0fc19dc68b8cd5b5, 0x240ca1cc77ac9c65
 487         .dword  0x2de92c6f592b0275, 0x4a7484aa6ea6e483
 488         .dword  0x5cb0a9dcbd41fbd4, 0x76f988da831153b5
 489         .dword  0x983e5152ee66dfab, 0xa831c66d2db43210
 490         .dword  0xb00327c898fb213f, 0xbf597fc7beef0ee4
 491         .dword  0xc6e00bf33da88fc2, 0xd5a79147930aa725
 492         .dword  0x06ca6351e003826f, 0x142929670a0e6e70
 493         .dword  0x27b70a8546d22ffc, 0x2e1b21385c26c926
 494         .dword  0x4d2c6dfc5ac42aed, 0x53380d139d95b3df
 495         .dword  0x650a73548baf63de, 0x766a0abb3c77b2a8
 496         .dword  0x81c2c92e47edaee6, 0x92722c851482353b
 497         .dword  0xa2bfe8a14cf10364, 0xa81a664bbc423001
 498         .dword  0xc24b8b70d0f89791, 0xc76c51a30654be30
 499         .dword  0xd192e819d6ef5218, 0xd69906245565a910
 500         .dword  0xf40e35855771202a, 0x106aa07032bbd1b8
 501         .dword  0x19a4c116b8d2d0c8, 0x1e376c085141ab53
 502         .dword  0x2748774cdf8eeb99, 0x34b0bcb5e19b48a8
 503         .dword  0x391c0cb3c5c95a63, 0x4ed8aa4ae3418acb
 504         .dword  0x5b9cca4f7763e373, 0x682e6ff3d6b2b8a3
 505         .dword  0x748f82ee5defb2fc, 0x78a5636f43172f60
 506         .dword  0x84c87814a1f0ab72, 0x8cc702081a6439ec
 507         .dword  0x90befffa23631e28, 0xa4506cebde82bde9
 508         .dword  0xbef9a3f7b2c67915, 0xc67178f2e372532b
 509         .dword  0xca273eceea26619c, 0xd186b8c721c0c207
 510         .dword  0xeada7dd6cde0eb1e, 0xf57d4f7fee6ed178
 511         .dword  0x06f067aa72176fba, 0x0a637dc5a2c898a6
 512         .dword  0x113f9804bef90dae, 0x1b710b35131c471b
 513         .dword  0x28db77f523047d84, 0x32caab7b40c72493
 514         .dword  0x3c9ebe0a15c9bebc, 0x431d67c49c100d4c
 515         .dword  0x4cc5d4becb3e42b6, 0x597f299cfc657e2a
 516         .dword  0x5fcb6fab3ad6faec, 0x6c44198c4a475817
 517 ___
 518 }
 519 $code.=<<___;
 520 .asciiz "SHA${label} for MIPS, CRYPTOGAMS by <appro\@openssl.org>"
 521 .align  5
 522
 523 ___
 524
 525 $code =~ s/\`([^\`]*)\`/eval $1/gem;
 526 print $code;
 527 close STDOUT or die "error closing STDOUT: $!";