crypto/sha/asm/sha1-ia64.pl

   1 #!/usr/bin/env perl
   2 #
   3 # ====================================================================
   4 # Written by Andy Polyakov <appro@fy.chalmers.se> 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 # Eternal question is what's wrong with compiler generated code? The
  11 # trick is that it's possible to reduce the number of shifts required
  12 # to perform rotations by maintaining copy of 32-bit value in upper
  13 # bits of 64-bit register. Just follow mux2 and shrp instructions...
  14 # Performance under big-endian OS such as HP-UX is 179MBps*1GHz, which
  15 # is >50% better than HP C and >2x better than gcc.
  16
  17 $code=<<___;
  18 .ident  \"sha1-ia64.s, version 1.2\"
  19 .ident  \"IA-64 ISA artwork by Andy Polyakov <appro\@fy.chalmers.se>\"
  20 .explicit
  21
  22 ___
  23
  24
  25 if ($^O eq "hpux") {
  26     $ADDP="addp4";
  27     for (@ARGV) { $ADDP="add" if (/[\+DD|\-mlp]64/); }
  28 } else { $ADDP="add"; }
  29 for (@ARGV) {   $big_endian=1 if (/\-DB_ENDIAN/);
  30                 $big_endian=0 if (/\-DL_ENDIAN/);   }
  31 if (!defined($big_endian))
  32             {   $big_endian=(unpack('L',pack('N',1))==1);   }
  33
  34 #$human=1;
  35 if ($human) {   # useful for visual code auditing...
  36         ($A,$B,$C,$D,$E,$T)   = ("A","B","C","D","E","T");
  37         ($h0,$h1,$h2,$h3,$h4) = ("h0","h1","h2","h3","h4");
  38         ($K_00_19, $K_20_39, $K_40_59, $K_60_79) =
  39             (   "K_00_19","K_20_39","K_40_59","K_60_79" );
  40         @X= (   "X0", "X1", "X2", "X3", "X4", "X5", "X6", "X7",
  41                 "X8", "X9","X10","X11","X12","X13","X14","X15"  );
  42 }
  43 else {
  44         ($A,$B,$C,$D,$E,$T)   = ("loc0","loc1","loc2","loc3","loc4","loc5");
  45         ($h0,$h1,$h2,$h3,$h4) = ("loc6","loc7","loc8","loc9","loc10");
  46         ($K_00_19, $K_20_39, $K_40_59, $K_60_79) =
  47             (   "r14", "r15", "loc11", "loc12"  );
  48         @X= (   "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
  49                 "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31"  );
  50 }
  51
  52 sub BODY_00_15 {
  53 local   *code=shift;
  54 local   ($i,$a,$b,$c,$d,$e,$f)=@_;
  55
  56 $code.=<<___ if ($i==0);
  57 { .mmi; ld1     $X[$i&0xf]=[inp],2          // MSB
  58         ld1     tmp2=[tmp3],2           };;
  59 { .mmi; ld1     tmp0=[inp],2
  60         ld1     tmp4=[tmp3],2               // LSB
  61         dep     $X[$i&0xf]=$X[$i&0xf],tmp2,8,8  };;
  62 ___
  63 if ($i<15) {
  64         $code.=<<___;
  65 { .mmi; ld1     $X[($i+1)&0xf]=[inp],2      // +1
  66         dep     tmp1=tmp0,tmp4,8,8      };;
  67 { .mmi; ld1     tmp2=[tmp3],2               // +1
  68         and     tmp4=$c,$b
  69         dep     $X[$i&0xf]=$X[$i&0xf],tmp1,16,16        } //;;
  70 { .mmi; andcm   tmp1=$d,$b
  71         add     tmp0=$e,$K_00_19
  72         dep.z   tmp5=$a,5,27            };; // a<<5
  73 { .mmi; or      tmp4=tmp4,tmp1              // F_00_19(b,c,d)=(b&c)|(~b&d)
  74         add     $f=tmp0,$X[$i&0xf]          // f=xi+e+K_00_19
  75         extr.u  tmp1=$a,27,5            };; // a>>27
  76 { .mmi; ld1     tmp0=[inp],2                // +1
  77         add     $f=$f,tmp4                  // f+=F_00_19(b,c,d)
  78         shrp    $b=tmp6,tmp6,2          }   // b=ROTATE(b,30)
  79 { .mmi; ld1     tmp4=[tmp3],2               // +1
  80         or      tmp5=tmp1,tmp5              // ROTATE(a,5)
  81         mux2    tmp6=$a,0x44            };; // see b in next iteration
  82 { .mii; add     $f=$f,tmp5                  // f+=ROTATE(a,5)
  83         dep     $X[($i+1)&0xf]=$X[($i+1)&0xf],tmp2,8,8  // +1
  84         mux2    $X[$i&0xf]=$X[$i&0xf],0x44      } //;;
  85
  86 ___
  87         }
  88 else    {
  89         $code.=<<___;
  90 { .mii; and     tmp3=$c,$b
  91         dep     tmp1=tmp0,tmp4,8,8;;
  92         dep     $X[$i&0xf]=$X[$i&0xf],tmp1,16,16        } //;;
  93 { .mmi; andcm   tmp1=$d,$b
  94         add     tmp0=$e,$K_00_19
  95         dep.z   tmp5=$a,5,27            };; // a<<5
  96 { .mmi; or      tmp4=tmp3,tmp1              // F_00_19(b,c,d)=(b&c)|(~b&d)
  97         add     $f=tmp0,$X[$i&0xf]          // f=xi+e+K_00_19
  98         extr.u  tmp1=$a,27,5            }   // a>>27
  99 { .mmi; xor     tmp2=$X[($i+0+1)&0xf],$X[($i+2+1)&0xf]  // +1
 100         xor     tmp3=$X[($i+8+1)&0xf],$X[($i+13+1)&0xf] // +1
 101         nop.i   0                       };;
 102 { .mmi; add     $f=$f,tmp4                  // f+=F_00_19(b,c,d)
 103         xor     tmp2=tmp2,tmp3              // +1
 104         shrp    $b=tmp6,tmp6,2          }   // b=ROTATE(b,30)
 105 { .mmi; or      tmp1=tmp1,tmp5              // ROTATE(a,5)
 106         mux2    tmp6=$a,0x44            };; // see b in next iteration
 107 { .mii; add     $f=$f,tmp1                  // f+=ROTATE(a,5)
 108         shrp    $e=tmp2,tmp2,31             // f+1=ROTATE(x[0]^x[2]^x[8]^x[13],1)
 109         mux2    $X[$i&0xf]=$X[$i&0xf],0x44  };;
 110
 111 ___
 112         }
 113 }
 114
 115 sub BODY_16_19 {
 116 local   *code=shift;
 117 local   ($i,$a,$b,$c,$d,$e,$f)=@_;
 118
 119 $code.=<<___;
 120 { .mmi; mov     $X[$i&0xf]=$f               // Xupdate
 121         and     tmp0=$c,$b
 122         dep.z   tmp5=$a,5,27            }   // a<<5
 123 { .mmi; andcm   tmp1=$d,$b
 124         add     tmp4=$e,$K_00_19        };;
 125 { .mmi; or      tmp0=tmp0,tmp1              // F_00_19(b,c,d)=(b&c)|(~b&d)
 126         add     $f=$f,tmp4                  // f+=e+K_00_19
 127         extr.u  tmp1=$a,27,5            }   // a>>27
 128 { .mmi; xor     tmp2=$X[($i+0+1)&0xf],$X[($i+2+1)&0xf]  // +1
 129         xor     tmp3=$X[($i+8+1)&0xf],$X[($i+13+1)&0xf] // +1
 130         nop.i   0                       };;
 131 { .mmi; add     $f=$f,tmp0                  // f+=F_00_19(b,c,d)
 132         xor     tmp2=tmp2,tmp3              // +1
 133         shrp    $b=tmp6,tmp6,2          }   // b=ROTATE(b,30)
 134 { .mmi; or      tmp1=tmp1,tmp5              // ROTATE(a,5)
 135         mux2    tmp6=$a,0x44            };; // see b in next iteration
 136 { .mii; add     $f=$f,tmp1                  // f+=ROTATE(a,5)
 137         shrp    $e=tmp2,tmp2,31             // f+1=ROTATE(x[0]^x[2]^x[8]^x[13],1)
 138         nop.i   0                       };;
 139
 140 ___
 141 }
 142
 143 sub BODY_20_39 {
 144 local   *code=shift;
 145 local   ($i,$a,$b,$c,$d,$e,$f,$Konst)=@_;
 146         $Konst = $K_20_39 if (!defined($Konst));
 147
 148 if ($i<79) {
 149 $code.=<<___;
 150 { .mib; mov     $X[$i&0xf]=$f               // Xupdate
 151         dep.z   tmp5=$a,5,27            }   // a<<5
 152 { .mib; xor     tmp0=$c,$b
 153         add     tmp4=$e,$Konst          };;
 154 { .mmi; xor     tmp0=tmp0,$d                // F_20_39(b,c,d)=b^c^d
 155         add     $f=$f,tmp4                  // f+=e+K_20_39
 156         extr.u  tmp1=$a,27,5            }   // a>>27
 157 { .mmi; xor     tmp2=$X[($i+0+1)&0xf],$X[($i+2+1)&0xf]  // +1
 158         xor     tmp3=$X[($i+8+1)&0xf],$X[($i+13+1)&0xf] // +1
 159         nop.i   0                       };;
 160 { .mmi; add     $f=$f,tmp0                  // f+=F_20_39(b,c,d)
 161         xor     tmp2=tmp2,tmp3              // +1
 162         shrp    $b=tmp6,tmp6,2          }   // b=ROTATE(b,30)
 163 { .mmi; or      tmp1=tmp1,tmp5              // ROTATE(a,5)
 164         mux2    tmp6=$a,0x44            };; // see b in next iteration
 165 { .mii; add     $f=$f,tmp1                  // f+=ROTATE(a,5)
 166         shrp    $e=tmp2,tmp2,31             // f+1=ROTATE(x[0]^x[2]^x[8]^x[13],1)
 167         nop.i   0                       };;
 168
 169 ___
 170 }
 171 else {
 172 $code.=<<___;
 173 { .mib; mov     $X[$i&0xf]=$f               // Xupdate
 174         dep.z   tmp5=$a,5,27            }   // a<<5
 175 { .mib; xor     tmp0=$c,$b
 176         add     tmp4=$e,$Konst          };;
 177 { .mib; xor     tmp0=tmp0,$d                // F_20_39(b,c,d)=b^c^d
 178         extr.u  tmp1=$a,27,5            }   // a>>27
 179 { .mib; add     $f=$f,tmp4                  // f+=e+K_20_39
 180         add     $h1=$h1,$a              };; // wrap up
 181 { .mmi; add     $f=$f,tmp0                  // f+=F_20_39(b,c,d)
 182         shrp    $b=tmp6,tmp6,2          }   // b=ROTATE(b,30) ;;?
 183 { .mmi; or      tmp1=tmp1,tmp5              // ROTATE(a,5)
 184         add     $h3=$h3,$c              };; // wrap up
 185 { .mib; add     tmp3=1,inp                  // used in unaligned codepath
 186         add     $f=$f,tmp1              }   // f+=ROTATE(a,5)
 187 { .mib; add     $h2=$h2,$b                  // wrap up
 188         add     $h4=$h4,$d              };; // wrap up
 189
 190 ___
 191 }
 192 }
 193
 194 sub BODY_40_59 {
 195 local   *code=shift;
 196 local   ($i,$a,$b,$c,$d,$e,$f)=@_;
 197
 198 $code.=<<___;
 199 { .mmi; mov     $X[$i&0xf]=$f               // Xupdate
 200         and     tmp0=$c,$b
 201         dep.z   tmp5=$a,5,27            }   // a<<5
 202 { .mmi; and     tmp1=$d,$b
 203         add     tmp4=$e,$K_40_59        };;
 204 { .mmi; or      tmp0=tmp0,tmp1              // (b&c)|(b&d)
 205         add     $f=$f,tmp4                  // f+=e+K_40_59
 206         extr.u  tmp1=$a,27,5            }   // a>>27
 207 { .mmi; and     tmp4=$c,$d
 208         xor     tmp2=$X[($i+0+1)&0xf],$X[($i+2+1)&0xf]  // +1
 209         xor     tmp3=$X[($i+8+1)&0xf],$X[($i+13+1)&0xf] // +1
 210         };;
 211 { .mmi; or      tmp1=tmp1,tmp5              // ROTATE(a,5)
 212         xor     tmp2=tmp2,tmp3              // +1
 213         shrp    $b=tmp6,tmp6,2          }   // b=ROTATE(b,30)
 214 { .mmi; or      tmp0=tmp0,tmp4              // F_40_59(b,c,d)=(b&c)|(b&d)|(c&d)
 215         mux2    tmp6=$a,0x44            };; // see b in next iteration
 216 { .mii; add     $f=$f,tmp0                  // f+=F_40_59(b,c,d)
 217         shrp    $e=tmp2,tmp2,31;;           // f+1=ROTATE(x[0]^x[2]^x[8]^x[13],1)
 218         add     $f=$f,tmp1              };; // f+=ROTATE(a,5)
 219
 220 ___
 221 }
 222 sub BODY_60_79  { &BODY_20_39(@_,$K_60_79); }
 223
 224 $code.=<<___;
 225 .text
 226
 227 tmp0=r8;
 228 tmp1=r9;
 229 tmp2=r10;
 230 tmp3=r11;
 231 ctx=r32;        // in0
 232 inp=r33;        // in1
 233
 234 // void sha1_block_data_order(SHA_CTX *c,const void *p,size_t num);
 235 .global sha1_block_data_order#
 236 .proc   sha1_block_data_order#
 237 .align  32
 238 sha1_block_data_order:
 239         .prologue
 240 { .mmi; alloc   tmp1=ar.pfs,3,15,0,0
 241         $ADDP   tmp0=4,ctx
 242         .save   ar.lc,r3
 243         mov     r3=ar.lc                }
 244 { .mmi; $ADDP   ctx=0,ctx
 245         $ADDP   inp=0,inp
 246         mov     r2=pr                   };;
 247 tmp4=in2;
 248 tmp5=loc13;
 249 tmp6=loc14;
 250         .body
 251 { .mlx; ld4     $h0=[ctx],8
 252         movl    $K_00_19=0x5a827999     }
 253 { .mlx; ld4     $h1=[tmp0],8
 254         movl    $K_20_39=0x6ed9eba1     };;
 255 { .mlx; ld4     $h2=[ctx],8
 256         movl    $K_40_59=0x8f1bbcdc     }
 257 { .mlx; ld4     $h3=[tmp0]
 258         movl    $K_60_79=0xca62c1d6     };;
 259 { .mmi; ld4     $h4=[ctx],-16
 260         add     in2=-1,in2                  // adjust num for ar.lc
 261         mov     ar.ec=1                 };;
 262 { .mmi; nop.m   0
 263         add     tmp3=1,inp
 264         mov     ar.lc=in2               };; // brp.loop.imp: too far
 265
 266 .Ldtop:
 267 { .mmi; mov     $A=$h0
 268         mov     $B=$h1
 269         mux2    tmp6=$h1,0x44           }
 270 { .mmi; mov     $C=$h2
 271         mov     $D=$h3
 272         mov     $E=$h4                  };;
 273
 274 ___
 275
 276 { my $i,@V=($A,$B,$C,$D,$E,$T);
 277
 278         for($i=0;$i<16;$i++)    { &BODY_00_15(\$code,$i,@V); unshift(@V,pop(@V)); }
 279         for(;$i<20;$i++)        { &BODY_16_19(\$code,$i,@V); unshift(@V,pop(@V)); }
 280         for(;$i<40;$i++)        { &BODY_20_39(\$code,$i,@V); unshift(@V,pop(@V)); }
 281         for(;$i<60;$i++)        { &BODY_40_59(\$code,$i,@V); unshift(@V,pop(@V)); }
 282         for(;$i<80;$i++)        { &BODY_60_79(\$code,$i,@V); unshift(@V,pop(@V)); }
 283
 284         (($V[5] eq $D) and ($V[0] eq $E)) or die;       # double-check
 285 }
 286
 287 $code.=<<___;
 288 { .mmb; add     $h0=$h0,$E
 289         nop.m   0
 290         br.ctop.dptk.many       .Ldtop  };;
 291 .Ldend:
 292 { .mmi; add     tmp0=4,ctx
 293         mov     ar.lc=r3                };;
 294 { .mmi; st4     [ctx]=$h0,8
 295         st4     [tmp0]=$h1,8            };;
 296 { .mmi; st4     [ctx]=$h2,8
 297         st4     [tmp0]=$h3              };;
 298 { .mib; st4     [ctx]=$h4,-16
 299         mov     pr=r2,0x1ffff
 300         br.ret.sptk.many        b0      };;
 301 .endp   sha1_block_data_order#
 302 stringz "SHA1 block transform for IA64, CRYPTOGAMS by <appro\@openssl.org>"
 303 ___
 304
 305 print $code;