crypto/sha/asm/sha256-586.pl

   1 #!/usr/bin/env perl
   2 #
   3 # ====================================================================
   4 # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
   5 # project. The module is, however, dual licensed under OpenSSL and
   6 # CRYPTOGAMS licenses depending on where you obtain it. For further
   7 # details see http://www.openssl.org/~appro/cryptogams/.
   8 # ====================================================================
   9 #
  10 # SHA256 block transform for x86. September 2007.
  11 #
  12 # Performance improvement over compiler generated code varies from
  13 # 10% to 40% [see below]. Not very impressive on some µ-archs, but
  14 # it's 5 times smaller and optimizies amount of writes.
  15 #
  16 # May 2012.
  17 #
  18 # Optimization including two of Pavel Semjanov's ideas, alternative
  19 # Maj and full unroll, resulted in ~20-25% improvement on most CPUs,
  20 # ~7% on Pentium, ~40% on Atom. As fully unrolled loop body is almost
  21 # 15x larger, 8KB vs. 560B, it's fired only for longer inputs. But not
  22 # on P4, where it kills performance, nor Sandy Bridge, where folded
  23 # loop is approximately as fast...
  24 #
  25 # June 2012.
  26 #
  27 # Add AMD XOP-specific code path, >30% improvement on Bulldozer over
  28 # May version, >60% over original. Add AVX+shrd code path, >25%
  29 # improvement on Sandy Bridge over May version, 60% over original.
  30 #
  31 # May 2013.
  32 #
  33 # Replace AMD XOP code path with SSSE3 to cover more processors.
  34 # (Biggest improvement coefficient is on upcoming Atom Silvermont,
  35 # not shown.) Add AVX+BMI code path.
  36 #
  37 # March 2014.
  38 #
  39 # Add support for Intel SHA Extensions.
  40 #
  41 # Performance in clock cycles per processed byte (less is better):
  42 #
  43 #               gcc     icc     x86 asm(*)      SIMD    x86_64 asm(**)
  44 # Pentium       46      57      40/38           -       -
  45 # PIII          36      33      27/24           -       -
  46 # P4            41      38      28              -       17.3
  47 # AMD K8        27      25      19/15.5         -       14.9
  48 # Core2         26      23      18/15.6         14.3    13.8
  49 # Westmere      27      -       19/15.7         13.4    12.3
  50 # Sandy Bridge  25      -       15.9            12.4    11.6
  51 # Ivy Bridge    24      -       15.0            11.4    10.3
  52 # Haswell       22      -       13.9            9.46    7.80
  53 # Bulldozer     36      -       27/22           17.0    13.6
  54 # VIA Nano      36      -       25/22           16.8    16.5
  55 # Atom          50      -       30/25           21.9    18.9
  56 # Silvermont    40      -       34/31           22.9    20.6
  57 #
  58 # (*)   numbers after slash are for unrolled loop, where applicable;
  59 # (**)  x86_64 assembly performance is presented for reference
  60 #       purposes, results are best-available;
  61
  62 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
  63 push(@INC,"${dir}","${dir}../../perlasm");
  64 require "x86asm.pl";
  65
  66 &asm_init($ARGV[0],"sha512-586.pl",$ARGV[$#ARGV] eq "386");
  67
  68 $xmm=$avx=0;
  69 for (@ARGV) { $xmm=1 if (/-DOPENSSL_IA32_SSE2/); }
  70
  71 if ($xmm &&     `$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
  72                         =~ /GNU assembler version ([2-9]\.[0-9]+)/) {
  73         $avx = ($1>=2.19) + ($1>=2.22);
  74 }
  75
  76 if ($xmm && !$avx && $ARGV[0] eq "win32n" &&
  77                 `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)/) {
  78         $avx = ($1>=2.03) + ($1>=2.10);
  79 }
  80
  81 if ($xmm && !$avx && $ARGV[0] eq "win32" &&
  82                 `ml 2>&1` =~ /Version ([0-9]+)\./) {
  83         $avx = ($1>=10) + ($1>=11);
  84 }
  85
  86 if ($xmm && !$avx && `$ENV{CC} -v 2>&1` =~ /(^clang version|based on LLVM) ([3-9]\.[0-9]+)/) {
  87         $avx = ($2>=3.0) + ($2>3.0);
  88 }
  89
  90 $shaext=$xmm;   ### set to zero if compiling for 1.0.1
  91
  92 $unroll_after = 64*4;   # If pre-evicted from L1P cache first spin of
  93                         # fully unrolled loop was measured to run about
  94                         # 3-4x slower. If slowdown coefficient is N and
  95                         # unrolled loop is m times faster, then you break
  96                         # even at (N-1)/(m-1) blocks. Then it needs to be
  97                         # adjusted for probability of code being evicted,
  98                         # code size/cache size=1/4. Typical m is 1.15...
  99
 100 $A="eax";
 101 $E="edx";
 102 $T="ebx";
 103 $Aoff=&DWP(4,"esp");
 104 $Boff=&DWP(8,"esp");
 105 $Coff=&DWP(12,"esp");
 106 $Doff=&DWP(16,"esp");
 107 $Eoff=&DWP(20,"esp");
 108 $Foff=&DWP(24,"esp");
 109 $Goff=&DWP(28,"esp");
 110 $Hoff=&DWP(32,"esp");
 111 $Xoff=&DWP(36,"esp");
 112 $K256="ebp";
 113
 114 sub BODY_16_63() {
 115         &mov    ($T,"ecx");                     # "ecx" is preloaded
 116          &mov   ("esi",&DWP(4*(9+15+16-14),"esp"));
 117         &ror    ("ecx",18-7);
 118          &mov   ("edi","esi");
 119         &ror    ("esi",19-17);
 120          &xor   ("ecx",$T);
 121          &shr   ($T,3);
 122         &ror    ("ecx",7);
 123          &xor   ("esi","edi");
 124          &xor   ($T,"ecx");                     # T = sigma0(X[-15])
 125         &ror    ("esi",17);
 126          &add   ($T,&DWP(4*(9+15+16),"esp"));   # T += X[-16]
 127         &shr    ("edi",10);
 128          &add   ($T,&DWP(4*(9+15+16-9),"esp")); # T += X[-7]
 129         #&xor   ("edi","esi")                   # sigma1(X[-2])
 130         # &add  ($T,"edi");                     # T += sigma1(X[-2])
 131         # &mov  (&DWP(4*(9+15),"esp"),$T);      # save X[0]
 132
 133         &BODY_00_15(1);
 134 }
 135 sub BODY_00_15() {
 136     my $in_16_63=shift;
 137
 138         &mov    ("ecx",$E);
 139          &xor   ("edi","esi")                   if ($in_16_63); # sigma1(X[-2])
 140          &mov   ("esi",$Foff);
 141         &ror    ("ecx",25-11);
 142          &add   ($T,"edi")                      if ($in_16_63); # T += sigma1(X[-2])
 143          &mov   ("edi",$Goff);
 144         &xor    ("ecx",$E);
 145          &xor   ("esi","edi");
 146          &mov   ($T,&DWP(4*(9+15),"esp"))       if (!$in_16_63);
 147          &mov   (&DWP(4*(9+15),"esp"),$T)       if ($in_16_63); # save X[0]
 148         &ror    ("ecx",11-6);
 149          &and   ("esi",$E);
 150          &mov   ($Eoff,$E);             # modulo-scheduled
 151         &xor    ($E,"ecx");
 152          &add   ($T,$Hoff);             # T += h
 153          &xor   ("esi","edi");          # Ch(e,f,g)
 154         &ror    ($E,6);                 # Sigma1(e)
 155          &mov   ("ecx",$A);
 156          &add   ($T,"esi");             # T += Ch(e,f,g)
 157
 158         &ror    ("ecx",22-13);
 159          &add   ($T,$E);                # T += Sigma1(e)
 160          &mov   ("edi",$Boff);
 161         &xor    ("ecx",$A);
 162          &mov   ($Aoff,$A);             # modulo-scheduled
 163          &lea   ("esp",&DWP(-4,"esp"));
 164         &ror    ("ecx",13-2);
 165          &mov   ("esi",&DWP(0,$K256));
 166         &xor    ("ecx",$A);
 167          &mov   ($E,$Eoff);             # e in next iteration, d in this one
 168          &xor   ($A,"edi");             # a ^= b
 169         &ror    ("ecx",2);              # Sigma0(a)
 170
 171          &add   ($T,"esi");             # T+= K[i]
 172          &mov   (&DWP(0,"esp"),$A);     # (b^c) in next round
 173         &add    ($E,$T);                # d += T
 174          &and   ($A,&DWP(4,"esp"));     # a &= (b^c)
 175         &add    ($T,"ecx");             # T += Sigma0(a)
 176          &xor   ($A,"edi");             # h = Maj(a,b,c) = Ch(a^b,c,b)
 177          &mov   ("ecx",&DWP(4*(9+15+16-1),"esp"))       if ($in_16_63); # preload T
 178         &add    ($K256,4);
 179          &add   ($A,$T);                # h += T
 180 }
 181
 182 &external_label("OPENSSL_ia32cap_P")            if (!$i386);
 183
 184 &function_begin("sha256_block_data_order");
 185         &mov    ("esi",wparam(0));      # ctx
 186         &mov    ("edi",wparam(1));      # inp
 187         &mov    ("eax",wparam(2));      # num
 188         &mov    ("ebx","esp");          # saved sp
 189
 190         &call   (&label("pic_point"));  # make it PIC!
 191 &set_label("pic_point");
 192         &blindpop($K256);
 193         &lea    ($K256,&DWP(&label("K256")."-".&label("pic_point"),$K256));
 194
 195         &sub    ("esp",16);
 196         &and    ("esp",-64);
 197
 198         &shl    ("eax",6);
 199         &add    ("eax","edi");
 200         &mov    (&DWP(0,"esp"),"esi");  # ctx
 201         &mov    (&DWP(4,"esp"),"edi");  # inp
 202         &mov    (&DWP(8,"esp"),"eax");  # inp+num*128
 203         &mov    (&DWP(12,"esp"),"ebx"); # saved sp
 204                                                 if (!$i386 && $xmm) {
 205         &picmeup("edx","OPENSSL_ia32cap_P",$K256,&label("K256"));
 206         &mov    ("ecx",&DWP(0,"edx"));
 207         &mov    ("ebx",&DWP(4,"edx"));
 208         &test   ("ecx",1<<20);          # check for P4
 209         &jnz    (&label("loop"));
 210         &mov    ("edx",&DWP(8,"edx"))   if ($xmm);
 211         &test   ("ecx",1<<24);          # check for FXSR
 212         &jz     ($unroll_after?&label("no_xmm"):&label("loop"));
 213         &and    ("ecx",1<<30);          # mask "Intel CPU" bit
 214         &and    ("ebx",1<<28|1<<9);     # mask AVX and SSSE3 bits
 215         &test   ("edx",1<<29)           if ($shaext);   # check for SHA
 216         &jnz    (&label("shaext"))      if ($shaext);
 217         &or     ("ecx","ebx");
 218         &and    ("ecx",1<<28|1<<30);
 219         &cmp    ("ecx",1<<28|1<<30);
 220                                         if ($xmm) {
 221         &je     (&label("AVX"))         if ($avx);
 222         &test   ("ebx",1<<9);           # check for SSSE3
 223         &jnz    (&label("SSSE3"));
 224                                         } else {
 225         &je     (&label("loop_shrd"));
 226                                         }
 227                                                 if ($unroll_after) {
 228 &set_label("no_xmm");
 229         &sub    ("eax","edi");
 230         &cmp    ("eax",$unroll_after);
 231         &jae    (&label("unrolled"));
 232                                                 } }
 233         &jmp    (&label("loop"));
 234
 235 sub COMPACT_LOOP() {
 236 my $suffix=shift;
 237
 238 &set_label("loop$suffix",$suffix?32:16);
 239     # copy input block to stack reversing byte and dword order
 240     for($i=0;$i<4;$i++) {
 241         &mov    ("eax",&DWP($i*16+0,"edi"));
 242         &mov    ("ebx",&DWP($i*16+4,"edi"));
 243         &mov    ("ecx",&DWP($i*16+8,"edi"));
 244         &bswap  ("eax");
 245         &mov    ("edx",&DWP($i*16+12,"edi"));
 246         &bswap  ("ebx");
 247         &push   ("eax");
 248         &bswap  ("ecx");
 249         &push   ("ebx");
 250         &bswap  ("edx");
 251         &push   ("ecx");
 252         &push   ("edx");
 253     }
 254         &add    ("edi",64);
 255         &lea    ("esp",&DWP(-4*9,"esp"));# place for A,B,C,D,E,F,G,H
 256         &mov    (&DWP(4*(9+16)+4,"esp"),"edi");
 257
 258         # copy ctx->h[0-7] to A,B,C,D,E,F,G,H on stack
 259         &mov    ($A,&DWP(0,"esi"));
 260         &mov    ("ebx",&DWP(4,"esi"));
 261         &mov    ("ecx",&DWP(8,"esi"));
 262         &mov    ("edi",&DWP(12,"esi"));
 263         # &mov  ($Aoff,$A);
 264         &mov    ($Boff,"ebx");
 265         &xor    ("ebx","ecx");
 266         &mov    ($Coff,"ecx");
 267         &mov    ($Doff,"edi");
 268         &mov    (&DWP(0,"esp"),"ebx");  # magic
 269         &mov    ($E,&DWP(16,"esi"));
 270         &mov    ("ebx",&DWP(20,"esi"));
 271         &mov    ("ecx",&DWP(24,"esi"));
 272         &mov    ("edi",&DWP(28,"esi"));
 273         # &mov  ($Eoff,$E);
 274         &mov    ($Foff,"ebx");
 275         &mov    ($Goff,"ecx");
 276         &mov    ($Hoff,"edi");
 277
 278 &set_label("00_15$suffix",16);
 279
 280         &BODY_00_15();
 281
 282         &cmp    ("esi",0xc19bf174);
 283         &jne    (&label("00_15$suffix"));
 284
 285         &mov    ("ecx",&DWP(4*(9+15+16-1),"esp"));      # preloaded in BODY_00_15(1)
 286         &jmp    (&label("16_63$suffix"));
 287
 288 &set_label("16_63$suffix",16);
 289
 290         &BODY_16_63();
 291
 292         &cmp    ("esi",0xc67178f2);
 293         &jne    (&label("16_63$suffix"));
 294
 295         &mov    ("esi",&DWP(4*(9+16+64)+0,"esp"));#ctx
 296         # &mov  ($A,$Aoff);
 297         &mov    ("ebx",$Boff);
 298         # &mov  ("edi",$Coff);
 299         &mov    ("ecx",$Doff);
 300         &add    ($A,&DWP(0,"esi"));
 301         &add    ("ebx",&DWP(4,"esi"));
 302         &add    ("edi",&DWP(8,"esi"));
 303         &add    ("ecx",&DWP(12,"esi"));
 304         &mov    (&DWP(0,"esi"),$A);
 305         &mov    (&DWP(4,"esi"),"ebx");
 306         &mov    (&DWP(8,"esi"),"edi");
 307         &mov    (&DWP(12,"esi"),"ecx");
 308         # &mov  ($E,$Eoff);
 309         &mov    ("eax",$Foff);
 310         &mov    ("ebx",$Goff);
 311         &mov    ("ecx",$Hoff);
 312         &mov    ("edi",&DWP(4*(9+16+64)+4,"esp"));#inp
 313         &add    ($E,&DWP(16,"esi"));
 314         &add    ("eax",&DWP(20,"esi"));
 315         &add    ("ebx",&DWP(24,"esi"));
 316         &add    ("ecx",&DWP(28,"esi"));
 317         &mov    (&DWP(16,"esi"),$E);
 318         &mov    (&DWP(20,"esi"),"eax");
 319         &mov    (&DWP(24,"esi"),"ebx");
 320         &mov    (&DWP(28,"esi"),"ecx");
 321
 322         &lea    ("esp",&DWP(4*(9+16+64),"esp"));# destroy frame
 323         &sub    ($K256,4*64);                   # rewind K
 324
 325         &cmp    ("edi",&DWP(8,"esp"));          # are we done yet?
 326         &jb     (&label("loop$suffix"));
 327 }
 328         &COMPACT_LOOP();
 329         &mov    ("esp",&DWP(12,"esp"));         # restore sp
 330 &function_end_A();
 331                                                 if (!$i386 && !$xmm) {
 332         # ~20% improvement on Sandy Bridge
 333         local *ror = sub { &shrd(@_[0],@_) };
 334         &COMPACT_LOOP("_shrd");
 335         &mov    ("esp",&DWP(12,"esp"));         # restore sp
 336 &function_end_A();
 337                                                 }
 338
 339 &set_label("K256",64);  # Yes! I keep it in the code segment!
 340 @K256=( 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5,
 341         0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5,
 342         0xd807aa98,0x12835b01,0x243185be,0x550c7dc3,
 343         0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174,
 344         0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc,
 345         0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da,
 346         0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7,
 347         0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967,
 348         0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13,
 349         0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85,
 350         0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3,
 351         0xd192e819,0xd6990624,0xf40e3585,0x106aa070,
 352         0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5,
 353         0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3,
 354         0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208,
 355         0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2     );
 356 &data_word(@K256);
 357 &data_word(0x00010203,0x04050607,0x08090a0b,0x0c0d0e0f);        # byte swap mask
 358 &asciz("SHA256 block transform for x86, CRYPTOGAMS by <appro\@openssl.org>");
 359
 360 ($a,$b,$c,$d,$e,$f,$g,$h)=(0..7);       # offsets
 361 sub off { &DWP(4*(((shift)-$i)&7),"esp"); }
 362
 363 if (!$i386 && $unroll_after) {
 364 my @AH=($A,$K256);
 365
 366 &set_label("unrolled",16);
 367         &lea    ("esp",&DWP(-96,"esp"));
 368         # copy ctx->h[0-7] to A,B,C,D,E,F,G,H on stack
 369         &mov    ($AH[0],&DWP(0,"esi"));
 370         &mov    ($AH[1],&DWP(4,"esi"));
 371         &mov    ("ecx",&DWP(8,"esi"));
 372         &mov    ("ebx",&DWP(12,"esi"));
 373         #&mov   (&DWP(0,"esp"),$AH[0]);
 374         &mov    (&DWP(4,"esp"),$AH[1]);
 375         &xor    ($AH[1],"ecx");         # magic
 376         &mov    (&DWP(8,"esp"),"ecx");
 377         &mov    (&DWP(12,"esp"),"ebx");
 378         &mov    ($E,&DWP(16,"esi"));
 379         &mov    ("ebx",&DWP(20,"esi"));
 380         &mov    ("ecx",&DWP(24,"esi"));
 381         &mov    ("esi",&DWP(28,"esi"));
 382         #&mov   (&DWP(16,"esp"),$E);
 383         &mov    (&DWP(20,"esp"),"ebx");
 384         &mov    (&DWP(24,"esp"),"ecx");
 385         &mov    (&DWP(28,"esp"),"esi");
 386         &jmp    (&label("grand_loop"));
 387
 388 &set_label("grand_loop",16);
 389     # copy input block to stack reversing byte order
 390     for($i=0;$i<5;$i++) {
 391         &mov    ("ebx",&DWP(12*$i+0,"edi"));
 392         &mov    ("ecx",&DWP(12*$i+4,"edi"));
 393         &bswap  ("ebx");
 394         &mov    ("esi",&DWP(12*$i+8,"edi"));
 395         &bswap  ("ecx");
 396         &mov    (&DWP(32+12*$i+0,"esp"),"ebx");
 397         &bswap  ("esi");
 398         &mov    (&DWP(32+12*$i+4,"esp"),"ecx");
 399         &mov    (&DWP(32+12*$i+8,"esp"),"esi");
 400     }
 401         &mov    ("ebx",&DWP($i*12,"edi"));
 402         &add    ("edi",64);
 403         &bswap  ("ebx");
 404         &mov    (&DWP(96+4,"esp"),"edi");
 405         &mov    (&DWP(32+12*$i,"esp"),"ebx");
 406
 407     my ($t1,$t2) = ("ecx","esi");
 408
 409     for ($i=0;$i<64;$i++) {
 410
 411       if ($i>=16) {
 412         &mov    ($T,$t1);                       # $t1 is preloaded
 413         # &mov  ($t2,&DWP(32+4*(($i+14)&15),"esp"));
 414         &ror    ($t1,18-7);
 415          &mov   ("edi",$t2);
 416         &ror    ($t2,19-17);
 417          &xor   ($t1,$T);
 418          &shr   ($T,3);
 419         &ror    ($t1,7);
 420          &xor   ($t2,"edi");
 421          &xor   ($T,$t1);                       # T = sigma0(X[-15])
 422         &ror    ($t2,17);
 423          &add   ($T,&DWP(32+4*($i&15),"esp"));  # T += X[-16]
 424         &shr    ("edi",10);
 425          &add   ($T,&DWP(32+4*(($i+9)&15),"esp"));      # T += X[-7]
 426         #&xor   ("edi",$t2)                     # sigma1(X[-2])
 427         # &add  ($T,"edi");                     # T += sigma1(X[-2])
 428         # &mov  (&DWP(4*(9+15),"esp"),$T);      # save X[0]
 429       }
 430         &mov    ($t1,$E);
 431          &xor   ("edi",$t2)                     if ($i>=16);    # sigma1(X[-2])
 432          &mov   ($t2,&off($f));
 433         &ror    ($E,25-11);
 434          &add   ($T,"edi")                      if ($i>=16);    # T += sigma1(X[-2])
 435          &mov   ("edi",&off($g));
 436         &xor    ($E,$t1);
 437          &mov   ($T,&DWP(32+4*($i&15),"esp"))   if ($i<16);     # X[i]
 438          &mov   (&DWP(32+4*($i&15),"esp"),$T)   if ($i>=16 && $i<62);   # save X[0]
 439          &xor   ($t2,"edi");
 440         &ror    ($E,11-6);
 441          &and   ($t2,$t1);
 442          &mov   (&off($e),$t1);         # save $E, modulo-scheduled
 443         &xor    ($E,$t1);
 444          &add   ($T,&off($h));          # T += h
 445          &xor   ("edi",$t2);            # Ch(e,f,g)
 446         &ror    ($E,6);                 # Sigma1(e)
 447          &mov   ($t1,$AH[0]);
 448          &add   ($T,"edi");             # T += Ch(e,f,g)
 449
 450         &ror    ($t1,22-13);
 451          &mov   ($t2,$AH[0]);
 452          &mov   ("edi",&off($b));
 453         &xor    ($t1,$AH[0]);
 454          &mov   (&off($a),$AH[0]);      # save $A, modulo-scheduled
 455          &xor   ($AH[0],"edi");         # a ^= b, (b^c) in next round
 456         &ror    ($t1,13-2);
 457          &and   ($AH[1],$AH[0]);        # (b^c) &= (a^b)
 458          &lea   ($E,&DWP(@K256[$i],$T,$E));     # T += Sigma1(1)+K[i]
 459         &xor    ($t1,$t2);
 460          &xor   ($AH[1],"edi");         # h = Maj(a,b,c) = Ch(a^b,c,b)
 461          &mov   ($t2,&DWP(32+4*(($i+2)&15),"esp"))      if ($i>=15 && $i<63);
 462         &ror    ($t1,2);                # Sigma0(a)
 463
 464          &add   ($AH[1],$E);            # h += T
 465          &add   ($E,&off($d));          # d += T
 466         &add    ($AH[1],$t1);           # h += Sigma0(a)
 467          &mov   ($t1,&DWP(32+4*(($i+15)&15),"esp"))     if ($i>=15 && $i<63);
 468
 469         @AH = reverse(@AH);             # rotate(a,h)
 470         ($t1,$t2) = ($t2,$t1);          # rotate(t1,t2)
 471     }
 472         &mov    ("esi",&DWP(96,"esp")); #ctx
 473                                         #&mov   ($AH[0],&DWP(0,"esp"));
 474         &xor    ($AH[1],"edi");         #&mov   ($AH[1],&DWP(4,"esp"));
 475                                         #&mov   ("edi", &DWP(8,"esp"));
 476         &mov    ("ecx",&DWP(12,"esp"));
 477         &add    ($AH[0],&DWP(0,"esi"));
 478         &add    ($AH[1],&DWP(4,"esi"));
 479         &add    ("edi",&DWP(8,"esi"));
 480         &add    ("ecx",&DWP(12,"esi"));
 481         &mov    (&DWP(0,"esi"),$AH[0]);
 482         &mov    (&DWP(4,"esi"),$AH[1]);
 483         &mov    (&DWP(8,"esi"),"edi");
 484         &mov    (&DWP(12,"esi"),"ecx");
 485          #&mov  (&DWP(0,"esp"),$AH[0]);
 486          &mov   (&DWP(4,"esp"),$AH[1]);
 487          &xor   ($AH[1],"edi");         # magic
 488          &mov   (&DWP(8,"esp"),"edi");
 489          &mov   (&DWP(12,"esp"),"ecx");
 490         #&mov   ($E,&DWP(16,"esp"));
 491         &mov    ("edi",&DWP(20,"esp"));
 492         &mov    ("ebx",&DWP(24,"esp"));
 493         &mov    ("ecx",&DWP(28,"esp"));
 494         &add    ($E,&DWP(16,"esi"));
 495         &add    ("edi",&DWP(20,"esi"));
 496         &add    ("ebx",&DWP(24,"esi"));
 497         &add    ("ecx",&DWP(28,"esi"));
 498         &mov    (&DWP(16,"esi"),$E);
 499         &mov    (&DWP(20,"esi"),"edi");
 500         &mov    (&DWP(24,"esi"),"ebx");
 501         &mov    (&DWP(28,"esi"),"ecx");
 502          #&mov  (&DWP(16,"esp"),$E);
 503          &mov   (&DWP(20,"esp"),"edi");
 504         &mov    ("edi",&DWP(96+4,"esp"));       # inp
 505          &mov   (&DWP(24,"esp"),"ebx");
 506          &mov   (&DWP(28,"esp"),"ecx");
 507
 508         &cmp    ("edi",&DWP(96+8,"esp"));       # are we done yet?
 509         &jb     (&label("grand_loop"));
 510
 511         &mov    ("esp",&DWP(96+12,"esp"));      # restore sp
 512 &function_end_A();
 513 }
 514                                                 if (!$i386 && $xmm) {{{
 515 if ($shaext) {
 516 ######################################################################
 517 # Intel SHA Extensions implementation of SHA256 update function.
 518 #
 519 my ($ctx,$inp,$end)=("esi","edi","eax");
 520 my ($Wi,$ABEF,$CDGH,$TMP)=map("xmm$_",(0..2,7));
 521 my @MSG=map("xmm$_",(3..6));
 522
 523 sub sha256op38 {
 524  my ($opcodelet,$dst,$src)=@_;
 525     if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/)
 526     {   &data_byte(0x0f,0x38,$opcodelet,0xc0|($1<<3)|$2);       }
 527 }
 528 sub sha256rnds2 { sha256op38(0xcb,@_); }
 529 sub sha256msg1  { sha256op38(0xcc,@_); }
 530 sub sha256msg2  { sha256op38(0xcd,@_); }
 531
 532 &set_label("shaext",32);
 533         &sub            ("esp",32);
 534
 535         &movdqu         ($ABEF,&QWP(0,$ctx));           # DCBA
 536         &lea            ($K256,&DWP(0x80,$K256));
 537         &movdqu         ($CDGH,&QWP(16,$ctx));          # HGFE
 538         &movdqa         ($TMP,&QWP(0x100-0x80,$K256));  # byte swap mask
 539
 540         &pshufd         ($Wi,$ABEF,0x1b);               # ABCD
 541         &pshufd         ($ABEF,$ABEF,0xb1);             # CDAB
 542         &pshufd         ($CDGH,$CDGH,0x1b);             # EFGH
 543         &palignr        ($ABEF,$CDGH,8);                # ABEF
 544         &punpcklqdq     ($CDGH,$Wi);                    # CDGH
 545         &jmp            (&label("loop_shaext"));
 546
 547 &set_label("loop_shaext",16);
 548         &movdqu         (@MSG[0],&QWP(0,$inp));
 549         &movdqu         (@MSG[1],&QWP(0x10,$inp));
 550         &movdqu         (@MSG[2],&QWP(0x20,$inp));
 551         &pshufb         (@MSG[0],$TMP);
 552         &movdqu         (@MSG[3],&QWP(0x30,$inp));
 553         &movdqa         (&QWP(16,"esp"),$CDGH);         # offload
 554
 555         &movdqa         ($Wi,&QWP(0*16-0x80,$K256));
 556         &paddd          ($Wi,@MSG[0]);
 557         &pshufb         (@MSG[1],$TMP);
 558         &sha256rnds2    ($CDGH,$ABEF);                  # 0-3
 559         &pshufd         ($Wi,$Wi,0x0e);
 560         &nop            ();
 561         &movdqa         (&QWP(0,"esp"),$ABEF);          # offload
 562         &sha256rnds2    ($ABEF,$CDGH);
 563
 564         &movdqa         ($Wi,&QWP(1*16-0x80,$K256));
 565         &paddd          ($Wi,@MSG[1]);
 566         &pshufb         (@MSG[2],$TMP);
 567         &sha256rnds2    ($CDGH,$ABEF);                  # 4-7
 568         &pshufd         ($Wi,$Wi,0x0e);
 569         &lea            ($inp,&DWP(0x40,$inp));
 570         &sha256msg1     (@MSG[0],@MSG[1]);
 571         &sha256rnds2    ($ABEF,$CDGH);
 572
 573         &movdqa         ($Wi,&QWP(2*16-0x80,$K256));
 574         &paddd          ($Wi,@MSG[2]);
 575         &pshufb         (@MSG[3],$TMP);
 576         &sha256rnds2    ($CDGH,$ABEF);                  # 8-11
 577         &pshufd         ($Wi,$Wi,0x0e);
 578         &movdqa         ($TMP,@MSG[3]);
 579         &palignr        ($TMP,@MSG[2],4);
 580         &nop            ();
 581         &paddd          (@MSG[0],$TMP);
 582         &sha256msg1     (@MSG[1],@MSG[2]);
 583         &sha256rnds2    ($ABEF,$CDGH);
 584
 585         &movdqa         ($Wi,&QWP(3*16-0x80,$K256));
 586         &paddd          ($Wi,@MSG[3]);
 587         &sha256msg2     (@MSG[0],@MSG[3]);
 588         &sha256rnds2    ($CDGH,$ABEF);                  # 12-15
 589         &pshufd         ($Wi,$Wi,0x0e);
 590         &movdqa         ($TMP,@MSG[0]);
 591         &palignr        ($TMP,@MSG[3],4);
 592         &nop            ();
 593         &paddd          (@MSG[1],$TMP);
 594         &sha256msg1     (@MSG[2],@MSG[3]);
 595         &sha256rnds2    ($ABEF,$CDGH);
 596
 597 for($i=4;$i<16-3;$i++) {
 598         &movdqa         ($Wi,&QWP($i*16-0x80,$K256));
 599         &paddd          ($Wi,@MSG[0]);
 600         &sha256msg2     (@MSG[1],@MSG[0]);
 601         &sha256rnds2    ($CDGH,$ABEF);                  # 16-19...
 602         &pshufd         ($Wi,$Wi,0x0e);
 603         &movdqa         ($TMP,@MSG[1]);
 604         &palignr        ($TMP,@MSG[0],4);
 605         &nop            ();
 606         &paddd          (@MSG[2],$TMP);
 607         &sha256msg1     (@MSG[3],@MSG[0]);
 608         &sha256rnds2    ($ABEF,$CDGH);
 609
 610         push(@MSG,shift(@MSG));
 611 }
 612         &movdqa         ($Wi,&QWP(13*16-0x80,$K256));
 613         &paddd          ($Wi,@MSG[0]);
 614         &sha256msg2     (@MSG[1],@MSG[0]);
 615         &sha256rnds2    ($CDGH,$ABEF);                  # 52-55
 616         &pshufd         ($Wi,$Wi,0x0e);
 617         &movdqa         ($TMP,@MSG[1])
 618         &palignr        ($TMP,@MSG[0],4);
 619         &sha256rnds2    ($ABEF,$CDGH);
 620         &paddd          (@MSG[2],$TMP);
 621
 622         &movdqa         ($Wi,&QWP(14*16-0x80,$K256));
 623         &paddd          ($Wi,@MSG[1]);
 624         &sha256rnds2    ($CDGH,$ABEF);                  # 56-59
 625         &pshufd         ($Wi,$Wi,0x0e);
 626         &sha256msg2     (@MSG[2],@MSG[1]);
 627         &movdqa         ($TMP,&QWP(0x100-0x80,$K256));  # byte swap mask
 628         &sha256rnds2    ($ABEF,$CDGH);
 629
 630         &movdqa         ($Wi,&QWP(15*16-0x80,$K256));
 631         &paddd          ($Wi,@MSG[2]);
 632         &nop            ();
 633         &sha256rnds2    ($CDGH,$ABEF);                  # 60-63
 634         &pshufd         ($Wi,$Wi,0x0e);
 635         &cmp            ($end,$inp);
 636         &nop            ();
 637         &sha256rnds2    ($ABEF,$CDGH);
 638
 639         &paddd          ($CDGH,&QWP(16,"esp"));
 640         &paddd          ($ABEF,&QWP(0,"esp"));
 641         &jnz            (&label("loop_shaext"));
 642
 643         &pshufd         ($CDGH,$CDGH,0xb1);             # DCHG
 644         &pshufd         ($TMP,$ABEF,0x1b);              # FEBA
 645         &pshufd         ($ABEF,$ABEF,0xb1);             # BAFE
 646         &punpckhqdq     ($ABEF,$CDGH);                  # DCBA
 647         &palignr        ($CDGH,$TMP,8);                 # HGFE
 648
 649         &mov            ("esp",&DWP(32+12,"esp"));
 650         &movdqu         (&QWP(0,$ctx),$ABEF);
 651         &movdqu         (&QWP(16,$ctx),$CDGH);
 652 &function_end_A();
 653 }
 654
 655 my @X = map("xmm$_",(0..3));
 656 my ($t0,$t1,$t2,$t3) = map("xmm$_",(4..7));
 657 my @AH = ($A,$T);
 658
 659 &set_label("SSSE3",32);
 660         &lea    ("esp",&DWP(-96,"esp"));
 661         # copy ctx->h[0-7] to A,B,C,D,E,F,G,H on stack
 662         &mov    ($AH[0],&DWP(0,"esi"));
 663         &mov    ($AH[1],&DWP(4,"esi"));
 664         &mov    ("ecx",&DWP(8,"esi"));
 665         &mov    ("edi",&DWP(12,"esi"));
 666         #&mov   (&DWP(0,"esp"),$AH[0]);
 667         &mov    (&DWP(4,"esp"),$AH[1]);
 668         &xor    ($AH[1],"ecx");                 # magic
 669         &mov    (&DWP(8,"esp"),"ecx");
 670         &mov    (&DWP(12,"esp"),"edi");
 671         &mov    ($E,&DWP(16,"esi"));
 672         &mov    ("edi",&DWP(20,"esi"));
 673         &mov    ("ecx",&DWP(24,"esi"));
 674         &mov    ("esi",&DWP(28,"esi"));
 675         #&mov   (&DWP(16,"esp"),$E);
 676         &mov    (&DWP(20,"esp"),"edi");
 677         &mov    ("edi",&DWP(96+4,"esp"));       # inp
 678         &mov    (&DWP(24,"esp"),"ecx");
 679         &mov    (&DWP(28,"esp"),"esi");
 680         &movdqa ($t3,&QWP(256,$K256));
 681         &jmp    (&label("grand_ssse3"));
 682
 683 &set_label("grand_ssse3",16);
 684         # load input, reverse byte order, add K256[0..15], save to stack
 685         &movdqu (@X[0],&QWP(0,"edi"));
 686         &movdqu (@X[1],&QWP(16,"edi"));
 687         &movdqu (@X[2],&QWP(32,"edi"));
 688         &movdqu (@X[3],&QWP(48,"edi"));
 689         &add    ("edi",64);
 690         &pshufb (@X[0],$t3);
 691         &mov    (&DWP(96+4,"esp"),"edi");
 692         &pshufb (@X[1],$t3);
 693         &movdqa ($t0,&QWP(0,$K256));
 694         &pshufb (@X[2],$t3);
 695         &movdqa ($t1,&QWP(16,$K256));
 696         &paddd  ($t0,@X[0]);
 697         &pshufb (@X[3],$t3);
 698         &movdqa ($t2,&QWP(32,$K256));
 699         &paddd  ($t1,@X[1]);
 700         &movdqa ($t3,&QWP(48,$K256));
 701         &movdqa (&QWP(32+0,"esp"),$t0);
 702         &paddd  ($t2,@X[2]);
 703         &movdqa (&QWP(32+16,"esp"),$t1);
 704         &paddd  ($t3,@X[3]);
 705         &movdqa (&QWP(32+32,"esp"),$t2);
 706         &movdqa (&QWP(32+48,"esp"),$t3);
 707         &jmp    (&label("ssse3_00_47"));
 708
 709 &set_label("ssse3_00_47",16);
 710         &add            ($K256,64);
 711
 712 sub SSSE3_00_47 () {
 713 my $j = shift;
 714 my $body = shift;
 715 my @X = @_;
 716 my @insns = (&$body,&$body,&$body,&$body);      # 120 instructions
 717
 718           eval(shift(@insns));
 719         &movdqa         ($t0,@X[1]);
 720           eval(shift(@insns));                  # @
 721           eval(shift(@insns));
 722         &movdqa         ($t3,@X[3]);
 723           eval(shift(@insns));
 724           eval(shift(@insns));
 725         &palignr        ($t0,@X[0],4);          # X[1..4]
 726           eval(shift(@insns));
 727           eval(shift(@insns));                  # @
 728           eval(shift(@insns));
 729          &palignr       ($t3,@X[2],4);          # X[9..12]
 730           eval(shift(@insns));
 731           eval(shift(@insns));
 732           eval(shift(@insns));
 733         &movdqa         ($t1,$t0);
 734           eval(shift(@insns));                  # @
 735           eval(shift(@insns));
 736         &movdqa         ($t2,$t0);
 737           eval(shift(@insns));
 738           eval(shift(@insns));
 739         &psrld          ($t0,3);
 740           eval(shift(@insns));
 741           eval(shift(@insns));                  # @
 742          &paddd         (@X[0],$t3);            # X[0..3] += X[9..12]
 743           eval(shift(@insns));
 744           eval(shift(@insns));
 745         &psrld          ($t2,7);
 746           eval(shift(@insns));
 747           eval(shift(@insns));
 748           eval(shift(@insns));                  # @
 749           eval(shift(@insns));
 750          &pshufd        ($t3,@X[3],0b11111010); # X[14..15]
 751           eval(shift(@insns));
 752           eval(shift(@insns));
 753         &pslld          ($t1,32-18);
 754           eval(shift(@insns));
 755           eval(shift(@insns));                  # @
 756         &pxor           ($t0,$t2);
 757           eval(shift(@insns));
 758           eval(shift(@insns));
 759         &psrld          ($t2,18-7);
 760           eval(shift(@insns));
 761           eval(shift(@insns));
 762           eval(shift(@insns));                  # @
 763         &pxor           ($t0,$t1);
 764           eval(shift(@insns));
 765           eval(shift(@insns));
 766         &pslld          ($t1,18-7);
 767           eval(shift(@insns));
 768           eval(shift(@insns));
 769           eval(shift(@insns));                  # @
 770         &pxor           ($t0,$t2);
 771           eval(shift(@insns));
 772           eval(shift(@insns));
 773          &movdqa        ($t2,$t3);
 774           eval(shift(@insns));
 775           eval(shift(@insns));
 776           eval(shift(@insns));                  # @
 777         &pxor           ($t0,$t1);              # sigma0(X[1..4])
 778           eval(shift(@insns));
 779           eval(shift(@insns));
 780          &psrld         ($t3,10);
 781           eval(shift(@insns));
 782           eval(shift(@insns));
 783           eval(shift(@insns));                  # @
 784         &paddd          (@X[0],$t0);            # X[0..3] += sigma0(X[1..4])
 785           eval(shift(@insns));
 786           eval(shift(@insns));
 787          &psrlq         ($t2,17);
 788           eval(shift(@insns));
 789           eval(shift(@insns));
 790           eval(shift(@insns));                  # @
 791          &pxor          ($t3,$t2);
 792           eval(shift(@insns));
 793           eval(shift(@insns));
 794          &psrlq         ($t2,19-17);
 795           eval(shift(@insns));
 796           eval(shift(@insns));
 797           eval(shift(@insns));                  # @
 798          &pxor          ($t3,$t2);
 799           eval(shift(@insns));
 800           eval(shift(@insns));
 801          &pshufd        ($t3,$t3,0b10000000);
 802           eval(shift(@insns));
 803           eval(shift(@insns));
 804           eval(shift(@insns));                  # @
 805           eval(shift(@insns));
 806           eval(shift(@insns));
 807           eval(shift(@insns));
 808           eval(shift(@insns));
 809           eval(shift(@insns));                  # @
 810           eval(shift(@insns));
 811          &psrldq        ($t3,8);
 812           eval(shift(@insns));
 813           eval(shift(@insns));
 814           eval(shift(@insns));
 815         &paddd          (@X[0],$t3);            # X[0..1] += sigma1(X[14..15])
 816           eval(shift(@insns));                  # @
 817           eval(shift(@insns));
 818           eval(shift(@insns));
 819           eval(shift(@insns));
 820           eval(shift(@insns));
 821           eval(shift(@insns));                  # @
 822           eval(shift(@insns));
 823          &pshufd        ($t3,@X[0],0b01010000); # X[16..17]
 824           eval(shift(@insns));
 825           eval(shift(@insns));
 826           eval(shift(@insns));
 827          &movdqa        ($t2,$t3);
 828           eval(shift(@insns));                  # @
 829          &psrld         ($t3,10);
 830           eval(shift(@insns));
 831          &psrlq         ($t2,17);
 832           eval(shift(@insns));
 833           eval(shift(@insns));
 834           eval(shift(@insns));
 835           eval(shift(@insns));                  # @
 836          &pxor          ($t3,$t2);
 837           eval(shift(@insns));
 838           eval(shift(@insns));
 839          &psrlq         ($t2,19-17);
 840           eval(shift(@insns));
 841           eval(shift(@insns));
 842           eval(shift(@insns));                  # @
 843          &pxor          ($t3,$t2);
 844           eval(shift(@insns));
 845           eval(shift(@insns));
 846           eval(shift(@insns));
 847          &pshufd        ($t3,$t3,0b00001000);
 848           eval(shift(@insns));
 849           eval(shift(@insns));                  # @
 850         &movdqa         ($t2,&QWP(16*$j,$K256));
 851           eval(shift(@insns));
 852           eval(shift(@insns));
 853          &pslldq        ($t3,8);
 854           eval(shift(@insns));
 855           eval(shift(@insns));
 856           eval(shift(@insns));                  # @
 857           eval(shift(@insns));
 858           eval(shift(@insns));
 859           eval(shift(@insns));
 860           eval(shift(@insns));
 861           eval(shift(@insns));                  # @
 862         &paddd          (@X[0],$t3);            # X[2..3] += sigma1(X[16..17])
 863           eval(shift(@insns));
 864           eval(shift(@insns));
 865           eval(shift(@insns));
 866           eval(shift(@insns));
 867         &paddd          ($t2,@X[0]);
 868           eval(shift(@insns));                  # @
 869
 870         foreach (@insns) { eval; }              # remaining instructions
 871
 872         &movdqa         (&QWP(32+16*$j,"esp"),$t2);
 873 }
 874
 875 sub body_00_15 () {
 876         (
 877         '&mov   ("ecx",$E);',
 878         '&ror   ($E,25-11);',
 879          '&mov  ("esi",&off($f));',
 880         '&xor   ($E,"ecx");',
 881          '&mov  ("edi",&off($g));',
 882          '&xor  ("esi","edi");',
 883         '&ror   ($E,11-6);',
 884          '&and  ("esi","ecx");',
 885          '&mov  (&off($e),"ecx");',     # save $E, modulo-scheduled
 886         '&xor   ($E,"ecx");',
 887          '&xor  ("edi","esi");',        # Ch(e,f,g)
 888         '&ror   ($E,6);',               # T = Sigma1(e)
 889          '&mov  ("ecx",$AH[0]);',
 890          '&add  ($E,"edi");',           # T += Ch(e,f,g)
 891          '&mov  ("edi",&off($b));',
 892         '&mov   ("esi",$AH[0]);',
 893
 894         '&ror   ("ecx",22-13);',
 895          '&mov  (&off($a),$AH[0]);',    # save $A, modulo-scheduled
 896         '&xor   ("ecx",$AH[0]);',
 897          '&xor  ($AH[0],"edi");',       # a ^= b, (b^c) in next round
 898          '&add  ($E,&off($h));',        # T += h
 899         '&ror   ("ecx",13-2);',
 900          '&and  ($AH[1],$AH[0]);',      # (b^c) &= (a^b)
 901         '&xor   ("ecx","esi");',
 902          '&add  ($E,&DWP(32+4*($i&15),"esp"));',        # T += K[i]+X[i]
 903          '&xor  ($AH[1],"edi");',       # h = Maj(a,b,c) = Ch(a^b,c,b)
 904         '&ror   ("ecx",2);',            # Sigma0(a)
 905
 906          '&add  ($AH[1],$E);',          # h += T
 907          '&add  ($E,&off($d));',        # d += T
 908         '&add   ($AH[1],"ecx");'.       # h += Sigma0(a)
 909
 910         '@AH = reverse(@AH); $i++;'     # rotate(a,h)
 911         );
 912 }
 913
 914     for ($i=0,$j=0; $j<4; $j++) {
 915         &SSSE3_00_47($j,\&body_00_15,@X);
 916         push(@X,shift(@X));             # rotate(@X)
 917     }
 918         &cmp    (&DWP(16*$j,$K256),0x00010203);
 919         &jne    (&label("ssse3_00_47"));
 920
 921     for ($i=0; $i<16; ) {
 922         foreach(body_00_15()) { eval; }
 923     }
 924
 925         &mov    ("esi",&DWP(96,"esp")); #ctx
 926                                         #&mov   ($AH[0],&DWP(0,"esp"));
 927         &xor    ($AH[1],"edi");         #&mov   ($AH[1],&DWP(4,"esp"));
 928                                         #&mov   ("edi", &DWP(8,"esp"));
 929         &mov    ("ecx",&DWP(12,"esp"));
 930         &add    ($AH[0],&DWP(0,"esi"));
 931         &add    ($AH[1],&DWP(4,"esi"));
 932         &add    ("edi",&DWP(8,"esi"));
 933         &add    ("ecx",&DWP(12,"esi"));
 934         &mov    (&DWP(0,"esi"),$AH[0]);
 935         &mov    (&DWP(4,"esi"),$AH[1]);
 936         &mov    (&DWP(8,"esi"),"edi");
 937         &mov    (&DWP(12,"esi"),"ecx");
 938          #&mov  (&DWP(0,"esp"),$AH[0]);
 939          &mov   (&DWP(4,"esp"),$AH[1]);
 940          &xor   ($AH[1],"edi");                 # magic
 941          &mov   (&DWP(8,"esp"),"edi");
 942          &mov   (&DWP(12,"esp"),"ecx");
 943         #&mov   ($E,&DWP(16,"esp"));
 944         &mov    ("edi",&DWP(20,"esp"));
 945         &mov    ("ecx",&DWP(24,"esp"));
 946         &add    ($E,&DWP(16,"esi"));
 947         &add    ("edi",&DWP(20,"esi"));
 948         &add    ("ecx",&DWP(24,"esi"));
 949         &mov    (&DWP(16,"esi"),$E);
 950         &mov    (&DWP(20,"esi"),"edi");
 951          &mov   (&DWP(20,"esp"),"edi");
 952         &mov    ("edi",&DWP(28,"esp"));
 953         &mov    (&DWP(24,"esi"),"ecx");
 954          #&mov  (&DWP(16,"esp"),$E);
 955         &add    ("edi",&DWP(28,"esi"));
 956          &mov   (&DWP(24,"esp"),"ecx");
 957         &mov    (&DWP(28,"esi"),"edi");
 958          &mov   (&DWP(28,"esp"),"edi");
 959         &mov    ("edi",&DWP(96+4,"esp"));       # inp
 960
 961         &movdqa ($t3,&QWP(64,$K256));
 962         &sub    ($K256,3*64);                   # rewind K
 963         &cmp    ("edi",&DWP(96+8,"esp"));       # are we done yet?
 964         &jb     (&label("grand_ssse3"));
 965
 966         &mov    ("esp",&DWP(96+12,"esp"));      # restore sp
 967 &function_end_A();
 968                                                 if ($avx) {
 969 &set_label("AVX",32);
 970                                                 if ($avx>1) {
 971         &and    ("edx",1<<8|1<<3);              # check for BMI2+BMI1
 972         &cmp    ("edx",1<<8|1<<3);
 973         &je     (&label("AVX_BMI"));
 974                                                 }
 975         &lea    ("esp",&DWP(-96,"esp"));
 976         &vzeroall       ();
 977         # copy ctx->h[0-7] to A,B,C,D,E,F,G,H on stack
 978         &mov    ($AH[0],&DWP(0,"esi"));
 979         &mov    ($AH[1],&DWP(4,"esi"));
 980         &mov    ("ecx",&DWP(8,"esi"));
 981         &mov    ("edi",&DWP(12,"esi"));
 982         #&mov   (&DWP(0,"esp"),$AH[0]);
 983         &mov    (&DWP(4,"esp"),$AH[1]);
 984         &xor    ($AH[1],"ecx");                 # magic
 985         &mov    (&DWP(8,"esp"),"ecx");
 986         &mov    (&DWP(12,"esp"),"edi");
 987         &mov    ($E,&DWP(16,"esi"));
 988         &mov    ("edi",&DWP(20,"esi"));
 989         &mov    ("ecx",&DWP(24,"esi"));
 990         &mov    ("esi",&DWP(28,"esi"));
 991         #&mov   (&DWP(16,"esp"),$E);
 992         &mov    (&DWP(20,"esp"),"edi");
 993         &mov    ("edi",&DWP(96+4,"esp"));       # inp
 994         &mov    (&DWP(24,"esp"),"ecx");
 995         &mov    (&DWP(28,"esp"),"esi");
 996         &vmovdqa        ($t3,&QWP(256,$K256));
 997         &jmp    (&label("grand_avx"));
 998
 999 &set_label("grand_avx",32);
1000         # load input, reverse byte order, add K256[0..15], save to stack
1001         &vmovdqu        (@X[0],&QWP(0,"edi"));
1002         &vmovdqu        (@X[1],&QWP(16,"edi"));
1003         &vmovdqu        (@X[2],&QWP(32,"edi"));
1004         &vmovdqu        (@X[3],&QWP(48,"edi"));
1005         &add            ("edi",64);
1006         &vpshufb        (@X[0],@X[0],$t3);
1007         &mov            (&DWP(96+4,"esp"),"edi");
1008         &vpshufb        (@X[1],@X[1],$t3);
1009         &vpshufb        (@X[2],@X[2],$t3);
1010         &vpaddd         ($t0,@X[0],&QWP(0,$K256));
1011         &vpshufb        (@X[3],@X[3],$t3);
1012         &vpaddd         ($t1,@X[1],&QWP(16,$K256));
1013         &vpaddd         ($t2,@X[2],&QWP(32,$K256));
1014         &vpaddd         ($t3,@X[3],&QWP(48,$K256));
1015         &vmovdqa        (&QWP(32+0,"esp"),$t0);
1016         &vmovdqa        (&QWP(32+16,"esp"),$t1);
1017         &vmovdqa        (&QWP(32+32,"esp"),$t2);
1018         &vmovdqa        (&QWP(32+48,"esp"),$t3);
1019         &jmp            (&label("avx_00_47"));
1020
1021 &set_label("avx_00_47",16);
1022         &add            ($K256,64);
1023
1024 sub Xupdate_AVX () {
1025         (
1026         '&vpalignr      ($t0,@X[1],@X[0],4);',  # X[1..4]
1027          '&vpalignr     ($t3,@X[3],@X[2],4);',  # X[9..12]
1028         '&vpsrld        ($t2,$t0,7);',
1029          '&vpaddd       (@X[0],@X[0],$t3);',    # X[0..3] += X[9..16]
1030         '&vpsrld        ($t3,$t0,3);',
1031         '&vpslld        ($t1,$t0,14);',
1032         '&vpxor         ($t0,$t3,$t2);',
1033          '&vpshufd      ($t3,@X[3],0b11111010)',# X[14..15]
1034         '&vpsrld        ($t2,$t2,18-7);',
1035         '&vpxor         ($t0,$t0,$t1);',
1036         '&vpslld        ($t1,$t1,25-14);',
1037         '&vpxor         ($t0,$t0,$t2);',
1038          '&vpsrld       ($t2,$t3,10);',
1039         '&vpxor         ($t0,$t0,$t1);',        # sigma0(X[1..4])
1040          '&vpsrlq       ($t1,$t3,17);',
1041         '&vpaddd        (@X[0],@X[0],$t0);',    # X[0..3] += sigma0(X[1..4])
1042          '&vpxor        ($t2,$t2,$t1);',
1043          '&vpsrlq       ($t3,$t3,19);',
1044          '&vpxor        ($t2,$t2,$t3);',        # sigma1(X[14..15]
1045          '&vpshufd      ($t3,$t2,0b10000100);',
1046         '&vpsrldq       ($t3,$t3,8);',
1047         '&vpaddd        (@X[0],@X[0],$t3);',    # X[0..1] += sigma1(X[14..15])
1048          '&vpshufd      ($t3,@X[0],0b01010000)',# X[16..17]
1049          '&vpsrld       ($t2,$t3,10);',
1050          '&vpsrlq       ($t1,$t3,17);',
1051          '&vpxor        ($t2,$t2,$t1);',
1052          '&vpsrlq       ($t3,$t3,19);',
1053          '&vpxor        ($t2,$t2,$t3);',        # sigma1(X[16..17]
1054          '&vpshufd      ($t3,$t2,0b11101000);',
1055         '&vpslldq       ($t3,$t3,8);',
1056         '&vpaddd        (@X[0],@X[0],$t3);'     # X[2..3] += sigma1(X[16..17])
1057         );
1058 }
1059
1060 local *ror = sub { &shrd(@_[0],@_) };
1061 sub AVX_00_47 () {
1062 my $j = shift;
1063 my $body = shift;
1064 my @X = @_;
1065 my @insns = (&$body,&$body,&$body,&$body);      # 120 instructions
1066 my $insn;
1067
1068         foreach (Xupdate_AVX()) {               # 31 instructions
1069             eval;
1070             eval(shift(@insns));
1071             eval(shift(@insns));
1072             eval($insn = shift(@insns));
1073             eval(shift(@insns)) if ($insn =~ /rorx/ && @insns[0] =~ /rorx/);
1074         }
1075         &vpaddd         ($t2,@X[0],&QWP(16*$j,$K256));
1076         foreach (@insns) { eval; }              # remaining instructions
1077         &vmovdqa        (&QWP(32+16*$j,"esp"),$t2);
1078 }
1079
1080     for ($i=0,$j=0; $j<4; $j++) {
1081         &AVX_00_47($j,\&body_00_15,@X);
1082         push(@X,shift(@X));             # rotate(@X)
1083     }
1084         &cmp    (&DWP(16*$j,$K256),0x00010203);
1085         &jne    (&label("avx_00_47"));
1086
1087     for ($i=0; $i<16; ) {
1088         foreach(body_00_15()) { eval; }
1089     }
1090
1091         &mov    ("esi",&DWP(96,"esp")); #ctx
1092                                         #&mov   ($AH[0],&DWP(0,"esp"));
1093         &xor    ($AH[1],"edi");         #&mov   ($AH[1],&DWP(4,"esp"));
1094                                         #&mov   ("edi", &DWP(8,"esp"));
1095         &mov    ("ecx",&DWP(12,"esp"));
1096         &add    ($AH[0],&DWP(0,"esi"));
1097         &add    ($AH[1],&DWP(4,"esi"));
1098         &add    ("edi",&DWP(8,"esi"));
1099         &add    ("ecx",&DWP(12,"esi"));
1100         &mov    (&DWP(0,"esi"),$AH[0]);
1101         &mov    (&DWP(4,"esi"),$AH[1]);
1102         &mov    (&DWP(8,"esi"),"edi");
1103         &mov    (&DWP(12,"esi"),"ecx");
1104          #&mov  (&DWP(0,"esp"),$AH[0]);
1105          &mov   (&DWP(4,"esp"),$AH[1]);
1106          &xor   ($AH[1],"edi");                 # magic
1107          &mov   (&DWP(8,"esp"),"edi");
1108          &mov   (&DWP(12,"esp"),"ecx");
1109         #&mov   ($E,&DWP(16,"esp"));
1110         &mov    ("edi",&DWP(20,"esp"));
1111         &mov    ("ecx",&DWP(24,"esp"));
1112         &add    ($E,&DWP(16,"esi"));
1113         &add    ("edi",&DWP(20,"esi"));
1114         &add    ("ecx",&DWP(24,"esi"));
1115         &mov    (&DWP(16,"esi"),$E);
1116         &mov    (&DWP(20,"esi"),"edi");
1117          &mov   (&DWP(20,"esp"),"edi");
1118         &mov    ("edi",&DWP(28,"esp"));
1119         &mov    (&DWP(24,"esi"),"ecx");
1120          #&mov  (&DWP(16,"esp"),$E);
1121         &add    ("edi",&DWP(28,"esi"));
1122          &mov   (&DWP(24,"esp"),"ecx");
1123         &mov    (&DWP(28,"esi"),"edi");
1124          &mov   (&DWP(28,"esp"),"edi");
1125         &mov    ("edi",&DWP(96+4,"esp"));       # inp
1126
1127         &vmovdqa        ($t3,&QWP(64,$K256));
1128         &sub    ($K256,3*64);                   # rewind K
1129         &cmp    ("edi",&DWP(96+8,"esp"));       # are we done yet?
1130         &jb     (&label("grand_avx"));
1131
1132         &mov    ("esp",&DWP(96+12,"esp"));      # restore sp
1133         &vzeroall       ();
1134 &function_end_A();
1135                                                 if ($avx>1) {
1136 sub bodyx_00_15 () {                    # +10%
1137         (
1138         '&rorx  ("ecx",$E,6)',
1139         '&rorx  ("esi",$E,11)',
1140          '&mov  (&off($e),$E)',         # save $E, modulo-scheduled
1141         '&rorx  ("edi",$E,25)',
1142         '&xor   ("ecx","esi")',
1143          '&andn ("esi",$E,&off($g))',
1144         '&xor   ("ecx","edi")',         # Sigma1(e)
1145          '&and  ($E,&off($f))',
1146          '&mov  (&off($a),$AH[0]);',    # save $A, modulo-scheduled
1147          '&or   ($E,"esi")',            # T = Ch(e,f,g)
1148
1149         '&rorx  ("edi",$AH[0],2)',
1150         '&rorx  ("esi",$AH[0],13)',
1151          '&lea  ($E,&DWP(0,$E,"ecx"))', # T += Sigma1(e)
1152         '&rorx  ("ecx",$AH[0],22)',
1153         '&xor   ("esi","edi")',
1154          '&mov  ("edi",&off($b))',
1155         '&xor   ("ecx","esi")',         # Sigma0(a)
1156
1157          '&xor  ($AH[0],"edi")',        # a ^= b, (b^c) in next round
1158          '&add  ($E,&off($h))',         # T += h
1159          '&and  ($AH[1],$AH[0])',       # (b^c) &= (a^b)
1160          '&add  ($E,&DWP(32+4*($i&15),"esp"))', # T += K[i]+X[i]
1161          '&xor  ($AH[1],"edi")',        # h = Maj(a,b,c) = Ch(a^b,c,b)
1162
1163          '&add  ("ecx",$E)',            # h += T
1164          '&add  ($E,&off($d))',         # d += T
1165         '&lea   ($AH[1],&DWP(0,$AH[1],"ecx"));'.        # h += Sigma0(a)
1166
1167         '@AH = reverse(@AH); $i++;'     # rotate(a,h)
1168         );
1169 }
1170
1171 &set_label("AVX_BMI",32);
1172         &lea    ("esp",&DWP(-96,"esp"));
1173         &vzeroall       ();
1174         # copy ctx->h[0-7] to A,B,C,D,E,F,G,H on stack
1175         &mov    ($AH[0],&DWP(0,"esi"));
1176         &mov    ($AH[1],&DWP(4,"esi"));
1177         &mov    ("ecx",&DWP(8,"esi"));
1178         &mov    ("edi",&DWP(12,"esi"));
1179         #&mov   (&DWP(0,"esp"),$AH[0]);
1180         &mov    (&DWP(4,"esp"),$AH[1]);
1181         &xor    ($AH[1],"ecx");                 # magic
1182         &mov    (&DWP(8,"esp"),"ecx");
1183         &mov    (&DWP(12,"esp"),"edi");
1184         &mov    ($E,&DWP(16,"esi"));
1185         &mov    ("edi",&DWP(20,"esi"));
1186         &mov    ("ecx",&DWP(24,"esi"));
1187         &mov    ("esi",&DWP(28,"esi"));
1188         #&mov   (&DWP(16,"esp"),$E);
1189         &mov    (&DWP(20,"esp"),"edi");
1190         &mov    ("edi",&DWP(96+4,"esp"));       # inp
1191         &mov    (&DWP(24,"esp"),"ecx");
1192         &mov    (&DWP(28,"esp"),"esi");
1193         &vmovdqa        ($t3,&QWP(256,$K256));
1194         &jmp    (&label("grand_avx_bmi"));
1195
1196 &set_label("grand_avx_bmi",32);
1197         # load input, reverse byte order, add K256[0..15], save to stack
1198         &vmovdqu        (@X[0],&QWP(0,"edi"));
1199         &vmovdqu        (@X[1],&QWP(16,"edi"));
1200         &vmovdqu        (@X[2],&QWP(32,"edi"));
1201         &vmovdqu        (@X[3],&QWP(48,"edi"));
1202         &add            ("edi",64);
1203         &vpshufb        (@X[0],@X[0],$t3);
1204         &mov            (&DWP(96+4,"esp"),"edi");
1205         &vpshufb        (@X[1],@X[1],$t3);
1206         &vpshufb        (@X[2],@X[2],$t3);
1207         &vpaddd         ($t0,@X[0],&QWP(0,$K256));
1208         &vpshufb        (@X[3],@X[3],$t3);
1209         &vpaddd         ($t1,@X[1],&QWP(16,$K256));
1210         &vpaddd         ($t2,@X[2],&QWP(32,$K256));
1211         &vpaddd         ($t3,@X[3],&QWP(48,$K256));
1212         &vmovdqa        (&QWP(32+0,"esp"),$t0);
1213         &vmovdqa        (&QWP(32+16,"esp"),$t1);
1214         &vmovdqa        (&QWP(32+32,"esp"),$t2);
1215         &vmovdqa        (&QWP(32+48,"esp"),$t3);
1216         &jmp            (&label("avx_bmi_00_47"));
1217
1218 &set_label("avx_bmi_00_47",16);
1219         &add            ($K256,64);
1220
1221     for ($i=0,$j=0; $j<4; $j++) {
1222         &AVX_00_47($j,\&bodyx_00_15,@X);
1223         push(@X,shift(@X));             # rotate(@X)
1224     }
1225         &cmp    (&DWP(16*$j,$K256),0x00010203);
1226         &jne    (&label("avx_bmi_00_47"));
1227
1228     for ($i=0; $i<16; ) {
1229         foreach(bodyx_00_15()) { eval; }
1230     }
1231
1232         &mov    ("esi",&DWP(96,"esp")); #ctx
1233                                         #&mov   ($AH[0],&DWP(0,"esp"));
1234         &xor    ($AH[1],"edi");         #&mov   ($AH[1],&DWP(4,"esp"));
1235                                         #&mov   ("edi", &DWP(8,"esp"));
1236         &mov    ("ecx",&DWP(12,"esp"));
1237         &add    ($AH[0],&DWP(0,"esi"));
1238         &add    ($AH[1],&DWP(4,"esi"));
1239         &add    ("edi",&DWP(8,"esi"));
1240         &add    ("ecx",&DWP(12,"esi"));
1241         &mov    (&DWP(0,"esi"),$AH[0]);
1242         &mov    (&DWP(4,"esi"),$AH[1]);
1243         &mov    (&DWP(8,"esi"),"edi");
1244         &mov    (&DWP(12,"esi"),"ecx");
1245          #&mov  (&DWP(0,"esp"),$AH[0]);
1246          &mov   (&DWP(4,"esp"),$AH[1]);
1247          &xor   ($AH[1],"edi");                 # magic
1248          &mov   (&DWP(8,"esp"),"edi");
1249          &mov   (&DWP(12,"esp"),"ecx");
1250         #&mov   ($E,&DWP(16,"esp"));
1251         &mov    ("edi",&DWP(20,"esp"));
1252         &mov    ("ecx",&DWP(24,"esp"));
1253         &add    ($E,&DWP(16,"esi"));
1254         &add    ("edi",&DWP(20,"esi"));
1255         &add    ("ecx",&DWP(24,"esi"));
1256         &mov    (&DWP(16,"esi"),$E);
1257         &mov    (&DWP(20,"esi"),"edi");
1258          &mov   (&DWP(20,"esp"),"edi");
1259         &mov    ("edi",&DWP(28,"esp"));
1260         &mov    (&DWP(24,"esi"),"ecx");
1261          #&mov  (&DWP(16,"esp"),$E);
1262         &add    ("edi",&DWP(28,"esi"));
1263          &mov   (&DWP(24,"esp"),"ecx");
1264         &mov    (&DWP(28,"esi"),"edi");
1265          &mov   (&DWP(28,"esp"),"edi");
1266         &mov    ("edi",&DWP(96+4,"esp"));       # inp
1267
1268         &vmovdqa        ($t3,&QWP(64,$K256));
1269         &sub    ($K256,3*64);                   # rewind K
1270         &cmp    ("edi",&DWP(96+8,"esp"));       # are we done yet?
1271         &jb     (&label("grand_avx_bmi"));
1272
1273         &mov    ("esp",&DWP(96+12,"esp"));      # restore sp
1274         &vzeroall       ();
1275 &function_end_A();
1276                                                 }
1277                                                 }
1278                                                 }}}
1279 &function_end_B("sha256_block_data_order");
1280
1281 &asm_finish();