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 # Performance in clock cycles per processed byte (less is better):
  32 #
  33 #               PIII    P4      AMD K8  Core2   SB      Atom    Bldzr
  34 # gcc           36      41      27      26      25      50      36
  35 # icc           33      38      25      23      -       -       -
  36 # x86 asm(*)    27/24   28      19/15.5 18/15.6 12.3    30/25   16.6
  37 # x86_64 asm(**)        17.5    15.1    13.9    11.6    22      13.7
  38 #
  39 # (*)   numbers after slash are for unrolled loop, where available,
  40 #       otherwise best applicable such as AVX/XOP;
  41 # (**)  x86_64 assembly performance is presented for reference
  42 #       purposes.
  43
  44 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
  45 push(@INC,"${dir}","${dir}../../perlasm");
  46 require "x86asm.pl";
  47
  48 &asm_init($ARGV[0],"sha512-586.pl",$ARGV[$#ARGV] eq "386");
  49
  50 $xmm=$ymm=0;
  51 for (@ARGV) { $xmm=1 if (/-DOPENSSL_IA32_SSE2/); }
  52
  53 $ymm=1 if ($xmm &&
  54                 `$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
  55                         =~ /GNU assembler version ([2-9]\.[0-9]+)/ &&
  56                 $1>=2.19);      # first version supporting AVX
  57
  58 $ymm=1 if ($xmm && !$ymm && $ARGV[0] eq "win32n" &&
  59                 `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)/ &&
  60                 $1>=2.03);      # first version supporting AVX
  61
  62 $ymm=1 if ($xmm && !$ymm && $ARGV[0] eq "win32" &&
  63                 `ml 2>&1` =~ /Version ([0-9]+)\./ &&
  64                 $1>=10);        # first version supporting AVX
  65
  66 $unroll_after = 64*4;   # If pre-evicted from L1P cache first spin of
  67                         # fully unrolled loop was measured to run about
  68                         # 3-4x slower. If slowdown coefficient is N and
  69                         # unrolled loop is m times faster, then you break
  70                         # even at (N-1)/(m-1) blocks. Then it needs to be
  71                         # adjusted for probability of code being evicted,
  72                         # code size/cache size=1/4. Typical m is 1.15...
  73
  74 $A="eax";
  75 $E="edx";
  76 $T="ebx";
  77 $Aoff=&DWP(4,"esp");
  78 $Boff=&DWP(8,"esp");
  79 $Coff=&DWP(12,"esp");
  80 $Doff=&DWP(16,"esp");
  81 $Eoff=&DWP(20,"esp");
  82 $Foff=&DWP(24,"esp");
  83 $Goff=&DWP(28,"esp");
  84 $Hoff=&DWP(32,"esp");
  85 $Xoff=&DWP(36,"esp");
  86 $K256="ebp";
  87
  88 sub BODY_16_63() {
  89         &mov    ($T,"ecx");                     # "ecx" is preloaded
  90          &mov   ("esi",&DWP(4*(9+15+16-14),"esp"));
  91         &ror    ("ecx",18-7);
  92          &mov   ("edi","esi");
  93         &ror    ("esi",19-17);
  94          &xor   ("ecx",$T);
  95          &shr   ($T,3);
  96         &ror    ("ecx",7);
  97          &xor   ("esi","edi");
  98          &xor   ($T,"ecx");                     # T = sigma0(X[-15])
  99         &ror    ("esi",17);
 100          &add   ($T,&DWP(4*(9+15+16),"esp"));   # T += X[-16]
 101         &shr    ("edi",10);
 102          &add   ($T,&DWP(4*(9+15+16-9),"esp")); # T += X[-7]
 103         #&xor   ("edi","esi")                   # sigma1(X[-2])
 104         # &add  ($T,"edi");                     # T += sigma1(X[-2])
 105         # &mov  (&DWP(4*(9+15),"esp"),$T);      # save X[0]
 106
 107         &BODY_00_15(1);
 108 }
 109 sub BODY_00_15() {
 110     my $in_16_63=shift;
 111
 112         &mov    ("ecx",$E);
 113          &xor   ("edi","esi")                   if ($in_16_63); # sigma1(X[-2])
 114          &mov   ("esi",$Foff);
 115         &ror    ("ecx",25-11);
 116          &add   ($T,"edi")                      if ($in_16_63); # T += sigma1(X[-2])
 117          &mov   ("edi",$Goff);
 118         &xor    ("ecx",$E);
 119          &xor   ("esi","edi");
 120          &mov   ($T,&DWP(4*(9+15),"esp"))       if (!$in_16_63);
 121          &mov   (&DWP(4*(9+15),"esp"),$T)       if ($in_16_63); # save X[0]
 122         &ror    ("ecx",11-6);
 123          &and   ("esi",$E);
 124          &mov   ($Eoff,$E);             # modulo-scheduled
 125         &xor    ($E,"ecx");
 126          &add   ($T,$Hoff);             # T += h
 127          &xor   ("esi","edi");          # Ch(e,f,g)
 128         &ror    ($E,6);                 # Sigma1(e)
 129          &mov   ("ecx",$A);
 130          &add   ($T,"esi");             # T += Ch(e,f,g)
 131
 132         &ror    ("ecx",22-13);
 133          &add   ($T,$E);                # T += Sigma1(e)
 134          &mov   ("edi",$Boff);
 135         &xor    ("ecx",$A);
 136          &mov   ($Aoff,$A);             # modulo-scheduled
 137          &lea   ("esp",&DWP(-4,"esp"));
 138         &ror    ("ecx",13-2);
 139          &mov   ("esi",&DWP(0,$K256));
 140         &xor    ("ecx",$A);
 141          &mov   ($E,$Eoff);             # e in next iteration, d in this one
 142          &xor   ($A,"edi");             # a ^= b
 143         &ror    ("ecx",2);              # Sigma0(a)
 144
 145          &add   ($T,"esi");             # T+= K[i]
 146          &mov   (&DWP(0,"esp"),$A);     # (b^c) in next round
 147         &add    ($E,$T);                # d += T
 148          &and   ($A,&DWP(4,"esp"));     # a &= (b^c)
 149         &add    ($T,"ecx");             # T += Sigma0(a)
 150          &xor   ($A,"edi");             # h = Maj(a,b,c) = Ch(a^b,c,b)
 151          &mov   ("ecx",&DWP(4*(9+15+16-1),"esp"))       if ($in_16_63); # preload T
 152         &add    ($K256,4);
 153          &add   ($A,$T);                # h += T
 154 }
 155
 156 &external_label("OPENSSL_ia32cap_P")            if (!$i386);
 157
 158 &function_begin("sha256_block_data_order");
 159         &mov    ("esi",wparam(0));      # ctx
 160         &mov    ("edi",wparam(1));      # inp
 161         &mov    ("eax",wparam(2));      # num
 162         &mov    ("ebx","esp");          # saved sp
 163
 164         &call   (&label("pic_point"));  # make it PIC!
 165 &set_label("pic_point");
 166         &blindpop($K256);
 167         &lea    ($K256,&DWP(&label("K256")."-".&label("pic_point"),$K256));
 168
 169         &sub    ("esp",16);
 170         &and    ("esp",-64);
 171
 172         &shl    ("eax",6);
 173         &add    ("eax","edi");
 174         &mov    (&DWP(0,"esp"),"esi");  # ctx
 175         &mov    (&DWP(4,"esp"),"edi");  # inp
 176         &mov    (&DWP(8,"esp"),"eax");  # inp+num*128
 177         &mov    (&DWP(12,"esp"),"ebx"); # saved sp
 178                                                 if (!$i386) {
 179         &picmeup("edx","OPENSSL_ia32cap_P",$K256,&label("K256"));
 180         &mov    ("ecx",&DWP(0,"edx"));
 181         &mov    ("edx",&DWP(4,"edx"));
 182         &test   ("ecx",1<<20);          # check for P4
 183         &jnz    (&label("loop"));
 184         &test   ("edx",1<<11);          # check for XOP
 185         &jnz    (&label("XOP"))         if ($ymm);
 186         &and    ("ecx",1<<30);          # mask "Intel CPU" bit
 187         &and    ("edx",1<<28);          # mask AVX bit
 188         &or     ("ecx","edx");
 189         &cmp    ("ecx",1<<28|1<<30);
 190         &je     (&label("AVX"))         if ($ymm);
 191         &je     (&label("loop_shrd"))   if (!$ymm);
 192                                                 if ($unroll_after) {
 193         &sub    ("eax","edi");
 194         &cmp    ("eax",$unroll_after);
 195         &jae    (&label("unrolled"));
 196                                                 } }
 197         &jmp    (&label("loop"));
 198
 199 sub COMPACT_LOOP() {
 200 my $suffix=shift;
 201
 202 &set_label("loop$suffix",16);
 203     # copy input block to stack reversing byte and dword order
 204     for($i=0;$i<4;$i++) {
 205         &mov    ("eax",&DWP($i*16+0,"edi"));
 206         &mov    ("ebx",&DWP($i*16+4,"edi"));
 207         &mov    ("ecx",&DWP($i*16+8,"edi"));
 208         &bswap  ("eax");
 209         &mov    ("edx",&DWP($i*16+12,"edi"));
 210         &bswap  ("ebx");
 211         &push   ("eax");
 212         &bswap  ("ecx");
 213         &push   ("ebx");
 214         &bswap  ("edx");
 215         &push   ("ecx");
 216         &push   ("edx");
 217     }
 218         &add    ("edi",64);
 219         &lea    ("esp",&DWP(-4*9,"esp"));# place for A,B,C,D,E,F,G,H
 220         &mov    (&DWP(4*(9+16)+4,"esp"),"edi");
 221
 222         # copy ctx->h[0-7] to A,B,C,D,E,F,G,H on stack
 223         &mov    ($A,&DWP(0,"esi"));
 224         &mov    ("ebx",&DWP(4,"esi"));
 225         &mov    ("ecx",&DWP(8,"esi"));
 226         &mov    ("edi",&DWP(12,"esi"));
 227         # &mov  ($Aoff,$A);
 228         &mov    ($Boff,"ebx");
 229         &xor    ("ebx","ecx");
 230         &mov    ($Coff,"ecx");
 231         &mov    ($Doff,"edi");
 232         &mov    (&DWP(0,"esp"),"ebx");  # magic
 233         &mov    ($E,&DWP(16,"esi"));
 234         &mov    ("ebx",&DWP(20,"esi"));
 235         &mov    ("ecx",&DWP(24,"esi"));
 236         &mov    ("edi",&DWP(28,"esi"));
 237         # &mov  ($Eoff,$E);
 238         &mov    ($Foff,"ebx");
 239         &mov    ($Goff,"ecx");
 240         &mov    ($Hoff,"edi");
 241
 242 &set_label("00_15$suffix",16);
 243
 244         &BODY_00_15();
 245
 246         &cmp    ("esi",0xc19bf174);
 247         &jne    (&label("00_15$suffix"));
 248
 249         &mov    ("ecx",&DWP(4*(9+15+16-1),"esp"));      # preloaded in BODY_00_15(1)
 250         &jmp    (&label("16_63$suffix"));
 251
 252 &set_label("16_63$suffix",16);
 253
 254         &BODY_16_63();
 255
 256         &cmp    ("esi",0xc67178f2);
 257         &jne    (&label("16_63$suffix"));
 258
 259         &mov    ("esi",&DWP(4*(9+16+64)+0,"esp"));#ctx
 260         # &mov  ($A,$Aoff);
 261         &mov    ("ebx",$Boff);
 262         # &mov  ("edi",$Coff);
 263         &mov    ("ecx",$Doff);
 264         &add    ($A,&DWP(0,"esi"));
 265         &add    ("ebx",&DWP(4,"esi"));
 266         &add    ("edi",&DWP(8,"esi"));
 267         &add    ("ecx",&DWP(12,"esi"));
 268         &mov    (&DWP(0,"esi"),$A);
 269         &mov    (&DWP(4,"esi"),"ebx");
 270         &mov    (&DWP(8,"esi"),"edi");
 271         &mov    (&DWP(12,"esi"),"ecx");
 272         # &mov  ($E,$Eoff);
 273         &mov    ("eax",$Foff);
 274         &mov    ("ebx",$Goff);
 275         &mov    ("ecx",$Hoff);
 276         &mov    ("edi",&DWP(4*(9+16+64)+4,"esp"));#inp
 277         &add    ($E,&DWP(16,"esi"));
 278         &add    ("eax",&DWP(20,"esi"));
 279         &add    ("ebx",&DWP(24,"esi"));
 280         &add    ("ecx",&DWP(28,"esi"));
 281         &mov    (&DWP(16,"esi"),$E);
 282         &mov    (&DWP(20,"esi"),"eax");
 283         &mov    (&DWP(24,"esi"),"ebx");
 284         &mov    (&DWP(28,"esi"),"ecx");
 285
 286         &lea    ("esp",&DWP(4*(9+16+64),"esp"));# destroy frame
 287         &sub    ($K256,4*64);                   # rewind K
 288
 289         &cmp    ("edi",&DWP(8,"esp"));          # are we done yet?
 290         &jb     (&label("loop$suffix"));
 291 }
 292         &COMPACT_LOOP();
 293         &mov    ("esp",&DWP(12,"esp"));         # restore sp
 294 &function_end_A();
 295                                                 if (!$i386 && !$ymm) {
 296         # ~20% improvement on Sandy Bridge
 297         local *ror = sub { &shrd(@_[0],@_) };
 298         &COMPACT_LOOP("_shrd");
 299         &mov    ("esp",&DWP(12,"esp"));         # restore sp
 300 &function_end_A();
 301                                                 }
 302
 303 &set_label("K256",64);  # Yes! I keep it in the code segment!
 304 @K256=( 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5,
 305         0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5,
 306         0xd807aa98,0x12835b01,0x243185be,0x550c7dc3,
 307         0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174,
 308         0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc,
 309         0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da,
 310         0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7,
 311         0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967,
 312         0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13,
 313         0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85,
 314         0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3,
 315         0xd192e819,0xd6990624,0xf40e3585,0x106aa070,
 316         0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5,
 317         0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3,
 318         0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208,
 319         0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2     );
 320 &data_word(@K256);
 321 &data_word(0x00010203,0x04050607,0x08090a0b,0x0c0d0e0f);
 322
 323 if (!$i386 && $unroll_after) {
 324 my @AH=($A,$K256);
 325
 326 &set_label("unrolled",16);
 327         &lea    ("esp",&DWP(-96,"esp"));
 328         # copy ctx->h[0-7] to A,B,C,D,E,F,G,H on stack
 329         &mov    ($AH[0],&DWP(0,"esi"));
 330         &mov    ($AH[1],&DWP(4,"esi"));
 331         &mov    ("ecx",&DWP(8,"esi"));
 332         &mov    ("ebx",&DWP(12,"esi"));
 333         #&mov   (&DWP(0,"esp"),$AH[0]);
 334         &mov    (&DWP(4,"esp"),$AH[1]);
 335         &xor    ($AH[1],"ecx");         # magic
 336         &mov    (&DWP(8,"esp"),"ecx");
 337         &mov    (&DWP(12,"esp"),"ebx");
 338         &mov    ($E,&DWP(16,"esi"));
 339         &mov    ("ebx",&DWP(20,"esi"));
 340         &mov    ("ecx",&DWP(24,"esi"));
 341         &mov    ("esi",&DWP(28,"esi"));
 342         #&mov   (&DWP(16,"esp"),$E);
 343         &mov    (&DWP(20,"esp"),"ebx");
 344         &mov    (&DWP(24,"esp"),"ecx");
 345         &mov    (&DWP(28,"esp"),"esi");
 346         &jmp    (&label("grand_loop"));
 347
 348 &set_label("grand_loop",16);
 349     # copy input block to stack reversing byte order
 350     for($i=0;$i<5;$i++) {
 351         &mov    ("ebx",&DWP(12*$i+0,"edi"));
 352         &mov    ("ecx",&DWP(12*$i+4,"edi"));
 353         &bswap  ("ebx");
 354         &mov    ("esi",&DWP(12*$i+8,"edi"));
 355         &bswap  ("ecx");
 356         &mov    (&DWP(32+12*$i+0,"esp"),"ebx");
 357         &bswap  ("esi");
 358         &mov    (&DWP(32+12*$i+4,"esp"),"ecx");
 359         &mov    (&DWP(32+12*$i+8,"esp"),"esi");
 360     }
 361         &mov    ("ebx",&DWP($i*12,"edi"));
 362         &add    ("edi",64);
 363         &bswap  ("ebx");
 364         &mov    (&DWP(96+4,"esp"),"edi");
 365         &mov    (&DWP(32+12*$i,"esp"),"ebx");
 366
 367     my ($t1,$t2) = ("ecx","esi");
 368     my ($a,$b,$c,$d,$e,$f,$g,$h)=(0..7);        # offsets
 369     sub off { &DWP(4*(((shift)-$i)&7),"esp"); }
 370
 371     for ($i=0;$i<64;$i++) {
 372
 373       if ($i>=16) {
 374         &mov    ($T,$t1);                       # $t1 is preloaded
 375         # &mov  ($t2,&DWP(32+4*(($i+14)&15),"esp"));
 376         &ror    ($t1,18-7);
 377          &mov   ("edi",$t2);
 378         &ror    ($t2,19-17);
 379          &xor   ($t1,$T);
 380          &shr   ($T,3);
 381         &ror    ($t1,7);
 382          &xor   ($t2,"edi");
 383          &xor   ($T,$t1);                       # T = sigma0(X[-15])
 384         &ror    ($t2,17);
 385          &add   ($T,&DWP(32+4*($i&15),"esp"));  # T += X[-16]
 386         &shr    ("edi",10);
 387          &add   ($T,&DWP(32+4*(($i+9)&15),"esp"));      # T += X[-7]
 388         #&xor   ("edi",$t2)                     # sigma1(X[-2])
 389         # &add  ($T,"edi");                     # T += sigma1(X[-2])
 390         # &mov  (&DWP(4*(9+15),"esp"),$T);      # save X[0]
 391       }
 392         &mov    ($t1,$E);
 393          &xor   ("edi",$t2)                     if ($i>=16);    # sigma1(X[-2])
 394          &mov   ($t2,&off($f));
 395         &ror    ($E,25-11);
 396          &add   ($T,"edi")                      if ($i>=16);    # T += sigma1(X[-2])
 397          &mov   ("edi",&off($g));
 398         &xor    ($E,$t1);
 399          &mov   ($T,&DWP(32+4*($i&15),"esp"))   if ($i<16);     # X[i]
 400          &mov   (&DWP(32+4*($i&15),"esp"),$T)   if ($i>=16 && $i<62);   # save X[0]
 401          &xor   ($t2,"edi");
 402         &ror    ($E,11-6);
 403          &and   ($t2,$t1);
 404          &mov   (&off($e),$t1);         # save $E, modulo-scheduled
 405         &xor    ($E,$t1);
 406          &add   ($T,&off($h));          # T += h
 407          &xor   ("edi",$t2);            # Ch(e,f,g)
 408         &ror    ($E,6);                 # Sigma1(e)
 409          &mov   ($t1,$AH[0]);
 410          &add   ($T,"edi");             # T += Ch(e,f,g)
 411
 412         &ror    ($t1,22-13);
 413          &mov   ($t2,$AH[0]);
 414          &mov   ("edi",&off($b));
 415         &xor    ($t1,$AH[0]);
 416          &mov   (&off($a),$AH[0]);      # save $A, modulo-scheduled
 417          &xor   ($AH[0],"edi");         # a ^= b, (b^c) in next round
 418         &ror    ($t1,13-2);
 419          &and   ($AH[1],$AH[0]);        # (b^c) &= (a^b)
 420          &lea   ($E,&DWP(@K256[$i],$T,$E));     # T += Sigma1(1)+K[i]
 421         &xor    ($t1,$t2);
 422          &xor   ($AH[1],"edi");         # h = Maj(a,b,c) = Ch(a^b,c,b)
 423          &mov   ($t2,&DWP(32+4*(($i+2)&15),"esp"))      if ($i>=15 && $i<63);
 424         &ror    ($t1,2);                # Sigma0(a)
 425
 426          &add   ($AH[1],$E);            # h += T
 427          &add   ($E,&off($d));          # d += T
 428         &add    ($AH[1],$t1);           # h += Sigma0(a)
 429          &mov   ($t1,&DWP(32+4*(($i+15)&15),"esp"))     if ($i>=15 && $i<63);
 430
 431         @AH = reverse(@AH);             # rotate(a,h)
 432         ($t1,$t2) = ($t2,$t1);          # rotate(t1,t2)
 433     }
 434         &mov    ("esi",&DWP(96,"esp")); #ctx
 435                                         #&mov   ($AH[0],&DWP(0,"esp"));
 436         &xor    ($AH[1],"edi");         #&mov   ($AH[1],&DWP(4,"esp"));
 437                                         #&mov   ("edi", &DWP(8,"esp"));
 438         &mov    ("ecx",&DWP(12,"esp"));
 439         &add    ($AH[0],&DWP(0,"esi"));
 440         &add    ($AH[1],&DWP(4,"esi"));
 441         &add    ("edi",&DWP(8,"esi"));
 442         &add    ("ecx",&DWP(12,"esi"));
 443         &mov    (&DWP(0,"esi"),$AH[0]);
 444         &mov    (&DWP(4,"esi"),$AH[1]);
 445         &mov    (&DWP(8,"esi"),"edi");
 446         &mov    (&DWP(12,"esi"),"ecx");
 447          #&mov  (&DWP(0,"esp"),$AH[0]);
 448          &mov   (&DWP(4,"esp"),$AH[1]);
 449          &xor   ($AH[1],"edi");         # magic
 450          &mov   (&DWP(8,"esp"),"edi");
 451          &mov   (&DWP(12,"esp"),"ecx");
 452         #&mov   ($E,&DWP(16,"esp"));
 453         &mov    ("edi",&DWP(20,"esp"));
 454         &mov    ("ebx",&DWP(24,"esp"));
 455         &mov    ("ecx",&DWP(28,"esp"));
 456         &add    ($E,&DWP(16,"esi"));
 457         &add    ("edi",&DWP(20,"esi"));
 458         &add    ("ebx",&DWP(24,"esi"));
 459         &add    ("ecx",&DWP(28,"esi"));
 460         &mov    (&DWP(16,"esi"),$E);
 461         &mov    (&DWP(20,"esi"),"edi");
 462         &mov    (&DWP(24,"esi"),"ebx");
 463         &mov    (&DWP(28,"esi"),"ecx");
 464          #&mov  (&DWP(16,"esp"),$E);
 465          &mov   (&DWP(20,"esp"),"edi");
 466         &mov    ("edi",&DWP(96+4,"esp"));       # inp
 467          &mov   (&DWP(24,"esp"),"ebx");
 468          &mov   (&DWP(28,"esp"),"ecx");
 469
 470         &cmp    ("edi",&DWP(96+8,"esp"));       # are we done yet?
 471         &jb     (&label("grand_loop"));
 472
 473         &mov    ("esp",&DWP(96+12,"esp"));      # restore sp
 474 &function_end_A();
 475
 476                                                 if ($ymm) {{{
 477 my @X = map("xmm$_",(0..3));
 478 my ($t0,$t1,$t2,$t3) = map("xmm$_",(4..7));
 479 my @AH = ($A,$T);
 480
 481 &set_label("XOP",16);
 482         &lea    ("esp",&DWP(-96,"esp"));
 483         &vzeroall       ();
 484         # copy ctx->h[0-7] to A,B,C,D,E,F,G,H on stack
 485         &mov    ($AH[0],&DWP(0,"esi"));
 486         &mov    ($AH[1],&DWP(4,"esi"));
 487         &mov    ("ecx",&DWP(8,"esi"));
 488         &mov    ("edi",&DWP(12,"esi"));
 489         #&mov   (&DWP(0,"esp"),$AH[0]);
 490         &mov    (&DWP(4,"esp"),$AH[1]);
 491         &xor    ($AH[1],"ecx");                 # magic
 492         &mov    (&DWP(8,"esp"),"ecx");
 493         &mov    (&DWP(12,"esp"),"edi");
 494         &mov    ($E,&DWP(16,"esi"));
 495         &mov    ("edi",&DWP(20,"esi"));
 496         &mov    ("ecx",&DWP(24,"esi"));
 497         &mov    ("esi",&DWP(28,"esi"));
 498         #&mov   (&DWP(16,"esp"),$E);
 499         &mov    (&DWP(20,"esp"),"edi");
 500         &mov    ("edi",&DWP(96+4,"esp"));       # inp
 501         &mov    (&DWP(24,"esp"),"ecx");
 502         &mov    (&DWP(28,"esp"),"esi");
 503         &vmovdqa        ($t3,&QWP(256,$K256));
 504         &jmp    (&label("grand_xop"));
 505
 506 &set_label("grand_xop",16);
 507         # load input, reverse byte order, add K256[0..15], save to stack
 508         &vmovdqu        (@X[0],&QWP(0,"edi"));
 509         &vmovdqu        (@X[1],&QWP(16,"edi"));
 510         &vmovdqu        (@X[2],&QWP(32,"edi"));
 511         &vmovdqu        (@X[3],&QWP(48,"edi"));
 512         &add            ("edi",64);
 513         &vpshufb        (@X[0],@X[0],$t3);
 514         &mov            (&DWP(96+4,"esp"),"edi");
 515         &vpshufb        (@X[1],@X[1],$t3);
 516         &vpshufb        (@X[2],@X[2],$t3);
 517         &vpaddd         ($t0,@X[0],&QWP(0,$K256));
 518         &vpshufb        (@X[3],@X[3],$t3);
 519         &vpaddd         ($t1,@X[1],&QWP(16,$K256));
 520         &vpaddd         ($t2,@X[2],&QWP(32,$K256));
 521         &vpaddd         ($t3,@X[3],&QWP(48,$K256));
 522         &vmovdqa        (&QWP(32+0,"esp"),$t0);
 523         &vmovdqa        (&QWP(32+16,"esp"),$t1);
 524         &vmovdqa        (&QWP(32+32,"esp"),$t2);
 525         &vmovdqa        (&QWP(32+48,"esp"),$t3);
 526         &jmp            (&label("xop_00_47"));
 527
 528 &set_label("xop_00_47",16);
 529         &add            ($K256,64);
 530
 531 sub XOP_00_47 () {
 532 my $j = shift;
 533 my $body = shift;
 534 my @X = @_;
 535 my @insns = (&$body,&$body,&$body,&$body);      # 120 instructions
 536
 537         &vpalignr       ($t0,@X[1],@X[0],4);    # X[1..4]
 538           eval(shift(@insns));
 539           eval(shift(@insns));
 540          &vpalignr      ($t3,@X[3],@X[2],4);    # X[9..12]
 541           eval(shift(@insns));
 542           eval(shift(@insns));
 543         &vprotd         ($t1,$t0,14);
 544           eval(shift(@insns));
 545           eval(shift(@insns));
 546         &vpsrld         ($t0,$t0,3);
 547          &vpaddd        (@X[0],@X[0],$t3);      # X[0..3] += X[9..12]
 548           eval(shift(@insns));
 549           eval(shift(@insns));
 550           eval(shift(@insns));
 551           eval(shift(@insns));
 552         &vprotd         ($t2,$t1,25-14);
 553         &vpxor          ($t0,$t0,$t1);
 554           eval(shift(@insns));
 555           eval(shift(@insns));
 556           eval(shift(@insns));
 557           eval(shift(@insns));
 558          &vprotd        ($t3,@X[3],13);
 559         &vpxor          ($t0,$t0,$t2);          # sigma0(X[1..4])
 560           eval(shift(@insns));
 561           eval(shift(@insns));
 562          &vpsrld        ($t2,@X[3],10);
 563           eval(shift(@insns));
 564           eval(shift(@insns));
 565         &vpaddd         (@X[0],@X[0],$t0);      # X[0..3] += sigma0(X[1..4])
 566           eval(shift(@insns));
 567           eval(shift(@insns));
 568          &vprotd        ($t1,$t3,15-13);
 569          &vpxor         ($t3,$t3,$t2);
 570           eval(shift(@insns));
 571           eval(shift(@insns));
 572           eval(shift(@insns));
 573           eval(shift(@insns));
 574          &vpxor         ($t3,$t3,$t1);          # sigma1(X[14..15])
 575           eval(shift(@insns));
 576           eval(shift(@insns));
 577           eval(shift(@insns));
 578           eval(shift(@insns));
 579         &vpsrldq        ($t3,$t3,8);
 580           eval(shift(@insns));
 581           eval(shift(@insns));
 582           eval(shift(@insns));
 583           eval(shift(@insns));
 584         &vpaddd         (@X[0],@X[0],$t3);      # X[0..1] += sigma1(X[14..15])
 585           eval(shift(@insns));
 586           eval(shift(@insns));
 587           eval(shift(@insns));
 588           eval(shift(@insns));
 589          &vprotd        ($t3,@X[0],13);
 590           eval(shift(@insns));
 591           eval(shift(@insns));
 592          &vpsrld        ($t2,@X[0],10);
 593           eval(shift(@insns));
 594           eval(shift(@insns));
 595          &vprotd        ($t1,$t3,15-13);
 596           eval(shift(@insns));
 597           eval(shift(@insns));
 598          &vpxor         ($t3,$t3,$t2);
 599           eval(shift(@insns));
 600           eval(shift(@insns));
 601           eval(shift(@insns));
 602           eval(shift(@insns));
 603          &vpxor         ($t3,$t3,$t1);          # sigma1(X[16..17])
 604           eval(shift(@insns));
 605           eval(shift(@insns));
 606           eval(shift(@insns));
 607           eval(shift(@insns));
 608         &vpslldq        ($t3,$t3,8);            # 22 instructions
 609           eval(shift(@insns));
 610           eval(shift(@insns));
 611           eval(shift(@insns));
 612           eval(shift(@insns));
 613         &vpaddd         (@X[0],@X[0],$t3);      # X[2..3] += sigma1(X[16..17])
 614           eval(shift(@insns));
 615           eval(shift(@insns));
 616           eval(shift(@insns));
 617           eval(shift(@insns));
 618         &vpaddd         ($t2,@X[0],&QWP(16*$j,$K256));
 619
 620         foreach (@insns) { eval; }              # remaining instructions
 621
 622         &vmovdqa        (&QWP(32+16*$j,"esp"),$t2);
 623 }
 624
 625 sub body_00_15 () {
 626         (
 627         '&mov   ("ecx",$E);',
 628          '&mov  ("esi",&off($f));',
 629         '&ror   ($E,25-11);',
 630          '&mov  ("edi",&off($g));',
 631         '&xor   ($E,"ecx");',
 632          '&xor  ("esi","edi");',
 633         '&ror   ($E,11-6);',
 634          '&and  ("esi","ecx");',
 635          '&mov  (&off($e),"ecx");',     # save $E, modulo-scheduled
 636         '&xor   ($E,"ecx");',
 637          '&xor  ("edi","esi");',        # Ch(e,f,g)
 638         '&ror   ($E,6);',               # T = Sigma1(e)
 639          '&mov  ("ecx",$AH[0]);',
 640         '&mov   ("esi",$AH[0]);',
 641          '&add  ($E,&off($h));',        # T += h
 642
 643         '&ror   ("ecx",22-13);',
 644          '&add  ($E,"edi");',           # T += Ch(e,f,g)
 645          '&mov  ("edi",&off($b));',
 646         '&xor   ("ecx",$AH[0]);',
 647          '&mov  (&off($a),$AH[0]);',    # save $A, modulo-scheduled
 648          '&xor  ($AH[0],"edi");',       # a ^= b, (b^c) in next round
 649         '&ror   ("ecx",13-2);',
 650          '&and  ($AH[1],$AH[0]);',      # (b^c) &= (a^b)
 651          '&add  ($E,&DWP(32+4*($i&15),"esp"));',        # T += K[i]+X[i]
 652         '&xor   ("ecx","esi");',
 653          '&xor  ($AH[1],"edi");',       # h = Maj(a,b,c) = Ch(a^b,c,b)
 654         '&ror   ("ecx",2);',            # Sigma0(a)
 655
 656          '&add  ($AH[1],$E);',          # h += T
 657          '&add  ($E,&off($d));',        # d += T
 658         '&add   ($AH[1],"ecx");'.       # h += Sigma0(a)
 659
 660         '@AH = reverse(@AH); $i++;'     # rotate(a,h)
 661         );
 662 }
 663
 664     for ($i=0,$j=0; $j<4; $j++) {
 665         &XOP_00_47($j,\&body_00_15,@X);
 666         push(@X,shift(@X));             # rotate(@X)
 667     }
 668         &cmp    (&DWP(16*$j,$K256),0x00010203);
 669         &jne    (&label("xop_00_47"));
 670
 671     for ($i=0; $i<16; ) {
 672         foreach(body_00_15()) { eval; }
 673     }
 674
 675         &mov    ("esi",&DWP(96,"esp")); #ctx
 676                                         #&mov   ($AH[0],&DWP(0,"esp"));
 677         &xor    ($AH[1],"edi");         #&mov   ($AH[1],&DWP(4,"esp"));
 678                                         #&mov   ("edi", &DWP(8,"esp"));
 679         &mov    ("ecx",&DWP(12,"esp"));
 680         &add    ($AH[0],&DWP(0,"esi"));
 681         &add    ($AH[1],&DWP(4,"esi"));
 682         &add    ("edi",&DWP(8,"esi"));
 683         &add    ("ecx",&DWP(12,"esi"));
 684         &mov    (&DWP(0,"esi"),$AH[0]);
 685         &mov    (&DWP(4,"esi"),$AH[1]);
 686         &mov    (&DWP(8,"esi"),"edi");
 687         &mov    (&DWP(12,"esi"),"ecx");
 688          #&mov  (&DWP(0,"esp"),$AH[0]);
 689          &mov   (&DWP(4,"esp"),$AH[1]);
 690          &xor   ($AH[1],"edi");                 # magic
 691          &mov   (&DWP(8,"esp"),"edi");
 692          &mov   (&DWP(12,"esp"),"ecx");
 693         #&mov   ($E,&DWP(16,"esp"));
 694         &mov    ("edi",&DWP(20,"esp"));
 695         &mov    ("ecx",&DWP(24,"esp"));
 696         &add    ($E,&DWP(16,"esi"));
 697         &add    ("edi",&DWP(20,"esi"));
 698         &add    ("ecx",&DWP(24,"esi"));
 699         &mov    (&DWP(16,"esi"),$E);
 700         &mov    (&DWP(20,"esi"),"edi");
 701          &mov   (&DWP(20,"esp"),"edi");
 702         &mov    ("edi",&DWP(28,"esp"));
 703         &mov    (&DWP(24,"esi"),"ecx");
 704          #&mov  (&DWP(16,"esp"),$E);
 705         &add    ("edi",&DWP(28,"esi"));
 706          &mov   (&DWP(24,"esp"),"ecx");
 707         &mov    (&DWP(28,"esi"),"edi");
 708          &mov   (&DWP(28,"esp"),"edi");
 709         &mov    ("edi",&DWP(96+4,"esp"));       # inp
 710
 711         &vmovdqa        ($t3,&QWP(64,$K256));
 712         &sub    ($K256,3*64);                   # rewind K
 713         &cmp    ("edi",&DWP(96+8,"esp"));       # are we done yet?
 714         &jb     (&label("grand_xop"));
 715
 716         &mov    ("esp",&DWP(96+12,"esp"));      # restore sp
 717         &vzeroall       ();
 718 &function_end_A();
 719
 720 &set_label("AVX",16);
 721         &lea    ("esp",&DWP(-96,"esp"));
 722         &vzeroall       ();
 723         # copy ctx->h[0-7] to A,B,C,D,E,F,G,H on stack
 724         &mov    ($AH[0],&DWP(0,"esi"));
 725         &mov    ($AH[1],&DWP(4,"esi"));
 726         &mov    ("ecx",&DWP(8,"esi"));
 727         &mov    ("edi",&DWP(12,"esi"));
 728         #&mov   (&DWP(0,"esp"),$AH[0]);
 729         &mov    (&DWP(4,"esp"),$AH[1]);
 730         &xor    ($AH[1],"ecx");                 # magic
 731         &mov    (&DWP(8,"esp"),"ecx");
 732         &mov    (&DWP(12,"esp"),"edi");
 733         &mov    ($E,&DWP(16,"esi"));
 734         &mov    ("edi",&DWP(20,"esi"));
 735         &mov    ("ecx",&DWP(24,"esi"));
 736         &mov    ("esi",&DWP(28,"esi"));
 737         #&mov   (&DWP(16,"esp"),$E);
 738         &mov    (&DWP(20,"esp"),"edi");
 739         &mov    ("edi",&DWP(96+4,"esp"));       # inp
 740         &mov    (&DWP(24,"esp"),"ecx");
 741         &mov    (&DWP(28,"esp"),"esi");
 742         &vmovdqa        ($t3,&QWP(256,$K256));
 743         &jmp    (&label("grand_avx"));
 744
 745 &set_label("grand_avx",16);
 746         # load input, reverse byte order, add K256[0..15], save to stack
 747         &vmovdqu        (@X[0],&QWP(0,"edi"));
 748         &vmovdqu        (@X[1],&QWP(16,"edi"));
 749         &vmovdqu        (@X[2],&QWP(32,"edi"));
 750         &vmovdqu        (@X[3],&QWP(48,"edi"));
 751         &add            ("edi",64);
 752         &vpshufb        (@X[0],@X[0],$t3);
 753         &mov            (&DWP(96+4,"esp"),"edi");
 754         &vpshufb        (@X[1],@X[1],$t3);
 755         &vpshufb        (@X[2],@X[2],$t3);
 756         &vpaddd         ($t0,@X[0],&QWP(0,$K256));
 757         &vpshufb        (@X[3],@X[3],$t3);
 758         &vpaddd         ($t1,@X[1],&QWP(16,$K256));
 759         &vpaddd         ($t2,@X[2],&QWP(32,$K256));
 760         &vpaddd         ($t3,@X[3],&QWP(48,$K256));
 761         &vmovdqa        (&QWP(32+0,"esp"),$t0);
 762         &vmovdqa        (&QWP(32+16,"esp"),$t1);
 763         &vmovdqa        (&QWP(32+32,"esp"),$t2);
 764         &vmovdqa        (&QWP(32+48,"esp"),$t3);
 765         &jmp            (&label("avx_00_47"));
 766
 767 &set_label("avx_00_47",16);
 768         &add            ($K256,64);
 769
 770 sub Xupdate_AVX () {
 771         (
 772         '&vpalignr      ($t0,@X[1],@X[0],4);',  # X[1..4]
 773          '&vpalignr     ($t3,@X[3],@X[2],4);',  # X[9..12]
 774         '&vpsrld        ($t2,$t0,7);',
 775          '&vpaddd       (@X[0],@X[0],$t3);',    # X[0..3] += X[9..16]
 776         '&vpsrld        ($t3,$t0,3);',
 777         '&vpslld        ($t1,$t0,14);',
 778         '&vpxor         ($t0,$t3,$t2);',
 779          '&vpshufd      ($t3,@X[3],0b11111010)',# X[14..15]
 780         '&vpsrld        ($t2,$t2,18-7);',
 781         '&vpxor         ($t0,$t0,$t1);',
 782         '&vpslld        ($t1,$t1,25-14);',
 783         '&vpxor         ($t0,$t0,$t2);',
 784          '&vpsrld       ($t2,$t3,10);',
 785         '&vpxor         ($t0,$t0,$t1);',        # sigma0(X[1..4])
 786          '&vpsrlq       ($t1,$t3,17);',
 787         '&vpaddd        (@X[0],@X[0],$t0);',    # X[0..3] += sigma0(X[1..4])
 788          '&vpxor        ($t2,$t2,$t1);',
 789          '&vpsrlq       ($t3,$t3,19);',
 790          '&vpxor        ($t2,$t2,$t3);',        # sigma1(X[14..15]
 791          '&vpshufd      ($t3,$t2,0b10000100);',
 792         '&vpsrldq       ($t3,$t3,8);',
 793         '&vpaddd        (@X[0],@X[0],$t3);',    # X[0..1] += sigma1(X[14..15])
 794          '&vpshufd      ($t3,@X[0],0b01010000)',# X[16..17]
 795          '&vpsrld       ($t2,$t3,10);',
 796          '&vpsrlq       ($t1,$t3,17);',
 797          '&vpxor        ($t2,$t2,$t1);',
 798          '&vpsrlq       ($t3,$t3,19);',
 799          '&vpxor        ($t2,$t2,$t3);',        # sigma1(X[16..17]
 800          '&vpshufd      ($t3,$t2,0b11101000);',
 801         '&vpslldq       ($t3,$t3,8);',
 802         '&vpaddd        (@X[0],@X[0],$t3);'     # X[2..3] += sigma1(X[16..17])
 803         );
 804 }
 805
 806 local *ror = sub { &shrd(@_[0],@_) };
 807 sub AVX_00_47 () {
 808 my $j = shift;
 809 my $body = shift;
 810 my @X = @_;
 811 my @insns = (&$body,&$body,&$body,&$body);      # 120 instructions
 812
 813         foreach (Xupdate_AVX()) {               # 31 instructions
 814             eval;
 815             eval(shift(@insns));
 816             eval(shift(@insns));
 817             eval(shift(@insns));
 818         }
 819         &vpaddd         ($t2,@X[0],&QWP(16*$j,$K256));
 820         foreach (@insns) { eval; }              # remaining instructions
 821         &vmovdqa        (&QWP(32+16*$j,"esp"),$t2);
 822 }
 823
 824     for ($i=0,$j=0; $j<4; $j++) {
 825         &AVX_00_47($j,\&body_00_15,@X);
 826         push(@X,shift(@X));             # rotate(@X)
 827     }
 828         &cmp    (&DWP(16*$j,$K256),0x00010203);
 829         &jne    (&label("avx_00_47"));
 830
 831     for ($i=0; $i<16; ) {
 832         foreach(body_00_15()) { eval; }
 833     }
 834
 835         &mov    ("esi",&DWP(96,"esp")); #ctx
 836                                         #&mov   ($AH[0],&DWP(0,"esp"));
 837         &xor    ($AH[1],"edi");         #&mov   ($AH[1],&DWP(4,"esp"));
 838                                         #&mov   ("edi", &DWP(8,"esp"));
 839         &mov    ("ecx",&DWP(12,"esp"));
 840         &add    ($AH[0],&DWP(0,"esi"));
 841         &add    ($AH[1],&DWP(4,"esi"));
 842         &add    ("edi",&DWP(8,"esi"));
 843         &add    ("ecx",&DWP(12,"esi"));
 844         &mov    (&DWP(0,"esi"),$AH[0]);
 845         &mov    (&DWP(4,"esi"),$AH[1]);
 846         &mov    (&DWP(8,"esi"),"edi");
 847         &mov    (&DWP(12,"esi"),"ecx");
 848          #&mov  (&DWP(0,"esp"),$AH[0]);
 849          &mov   (&DWP(4,"esp"),$AH[1]);
 850          &xor   ($AH[1],"edi");                 # magic
 851          &mov   (&DWP(8,"esp"),"edi");
 852          &mov   (&DWP(12,"esp"),"ecx");
 853         #&mov   ($E,&DWP(16,"esp"));
 854         &mov    ("edi",&DWP(20,"esp"));
 855         &mov    ("ecx",&DWP(24,"esp"));
 856         &add    ($E,&DWP(16,"esi"));
 857         &add    ("edi",&DWP(20,"esi"));
 858         &add    ("ecx",&DWP(24,"esi"));
 859         &mov    (&DWP(16,"esi"),$E);
 860         &mov    (&DWP(20,"esi"),"edi");
 861          &mov   (&DWP(20,"esp"),"edi");
 862         &mov    ("edi",&DWP(28,"esp"));
 863         &mov    (&DWP(24,"esi"),"ecx");
 864          #&mov  (&DWP(16,"esp"),$E);
 865         &add    ("edi",&DWP(28,"esi"));
 866          &mov   (&DWP(24,"esp"),"ecx");
 867         &mov    (&DWP(28,"esi"),"edi");
 868          &mov   (&DWP(28,"esp"),"edi");
 869         &mov    ("edi",&DWP(96+4,"esp"));       # inp
 870
 871         &vmovdqa        ($t3,&QWP(64,$K256));
 872         &sub    ($K256,3*64);                   # rewind K
 873         &cmp    ("edi",&DWP(96+8,"esp"));       # are we done yet?
 874         &jb     (&label("grand_avx"));
 875
 876         &mov    ("esp",&DWP(96+12,"esp"));      # restore sp
 877         &vzeroall       ();
 878 &function_end_A();
 879                                                 }}}
 880 }
 881 &function_end_B("sha256_block_data_order");
 882 &asciz("SHA256 block transform for x86, CRYPTOGAMS by <appro\@openssl.org>");
 883
 884 &asm_finish();