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