release/src/router/openssl/crypto/sha/asm/sha1-alpha.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 # SHA1 block procedure for Alpha.
  11
  12 # On 21264 performance is 33% better than code generated by vendor
  13 # compiler, and 75% better than GCC [3.4], and in absolute terms is
  14 # 8.7 cycles per processed byte. Implementation features vectorized
  15 # byte swap, but not Xupdate.
  16
  17 @X=(    "\$0",  "\$1",  "\$2",  "\$3",  "\$4",  "\$5",  "\$6",  "\$7",
  18         "\$8",  "\$9",  "\$10", "\$11", "\$12", "\$13", "\$14", "\$15");
  19 $ctx="a0";      # $16
  20 $inp="a1";
  21 $num="a2";
  22 $A="a3";
  23 $B="a4";        # 20
  24 $C="a5";
  25 $D="t8";
  26 $E="t9";        @V=($A,$B,$C,$D,$E);
  27 $t0="t10";      # 24
  28 $t1="t11";
  29 $t2="ra";
  30 $t3="t12";
  31 $K="AT";        # 28
  32
  33 sub BODY_00_19 {
  34 my ($i,$a,$b,$c,$d,$e)=@_;
  35 my $j=$i+1;
  36 $code.=<<___ if ($i==0);
  37         ldq_u   @X[0],0+0($inp)
  38         ldq_u   @X[1],0+7($inp)
  39 ___
  40 $code.=<<___ if (!($i&1) && $i<14);
  41         ldq_u   @X[$i+2],($i+2)*4+0($inp)
  42         ldq_u   @X[$i+3],($i+2)*4+7($inp)
  43 ___
  44 $code.=<<___ if (!($i&1) && $i<15);
  45         extql   @X[$i],$inp,@X[$i]
  46         extqh   @X[$i+1],$inp,@X[$i+1]
  47
  48         or      @X[$i+1],@X[$i],@X[$i]  # pair of 32-bit values are fetched
  49
  50         srl     @X[$i],24,$t0           # vectorized byte swap
  51         srl     @X[$i],8,$t2
  52
  53         sll     @X[$i],8,$t3
  54         sll     @X[$i],24,@X[$i]
  55         zapnot  $t0,0x11,$t0
  56         zapnot  $t2,0x22,$t2
  57
  58         zapnot  @X[$i],0x88,@X[$i]
  59         or      $t0,$t2,$t0
  60         zapnot  $t3,0x44,$t3
  61         sll     $a,5,$t1
  62
  63         or      @X[$i],$t0,@X[$i]
  64         addl    $K,$e,$e
  65         and     $b,$c,$t2
  66         zapnot  $a,0xf,$a
  67
  68         or      @X[$i],$t3,@X[$i]
  69         srl     $a,27,$t0
  70         bic     $d,$b,$t3
  71         sll     $b,30,$b
  72
  73         extll   @X[$i],4,@X[$i+1]       # extract upper half
  74         or      $t2,$t3,$t2
  75         addl    @X[$i],$e,$e
  76
  77         addl    $t1,$e,$e
  78         srl     $b,32,$t3
  79         zapnot  @X[$i],0xf,@X[$i]
  80
  81         addl    $t0,$e,$e
  82         addl    $t2,$e,$e
  83         or      $t3,$b,$b
  84 ___
  85 $code.=<<___ if (($i&1) && $i<15);
  86         sll     $a,5,$t1
  87         addl    $K,$e,$e
  88         and     $b,$c,$t2
  89         zapnot  $a,0xf,$a
  90
  91         srl     $a,27,$t0
  92         addl    @X[$i%16],$e,$e
  93         bic     $d,$b,$t3
  94         sll     $b,30,$b
  95
  96         or      $t2,$t3,$t2
  97         addl    $t1,$e,$e
  98         srl     $b,32,$t3
  99         zapnot  @X[$i],0xf,@X[$i]
 100
 101         addl    $t0,$e,$e
 102         addl    $t2,$e,$e
 103         or      $t3,$b,$b
 104 ___
 105 $code.=<<___ if ($i>=15);       # with forward Xupdate
 106         sll     $a,5,$t1
 107         addl    $K,$e,$e
 108         and     $b,$c,$t2
 109         xor     @X[($j+2)%16],@X[$j%16],@X[$j%16]
 110
 111         zapnot  $a,0xf,$a
 112         addl    @X[$i%16],$e,$e
 113         bic     $d,$b,$t3
 114         xor     @X[($j+8)%16],@X[$j%16],@X[$j%16]
 115
 116         srl     $a,27,$t0
 117         addl    $t1,$e,$e
 118         or      $t2,$t3,$t2
 119         xor     @X[($j+13)%16],@X[$j%16],@X[$j%16]
 120
 121         sll     $b,30,$b
 122         addl    $t0,$e,$e
 123         srl     @X[$j%16],31,$t1
 124
 125         addl    $t2,$e,$e
 126         srl     $b,32,$t3
 127         addl    @X[$j%16],@X[$j%16],@X[$j%16]
 128
 129         or      $t3,$b,$b
 130         zapnot  @X[$i%16],0xf,@X[$i%16]
 131         or      $t1,@X[$j%16],@X[$j%16]
 132 ___
 133 }
 134
 135 sub BODY_20_39 {
 136 my ($i,$a,$b,$c,$d,$e)=@_;
 137 my $j=$i+1;
 138 $code.=<<___ if ($i<79);        # with forward Xupdate
 139         sll     $a,5,$t1
 140         addl    $K,$e,$e
 141         zapnot  $a,0xf,$a
 142         xor     @X[($j+2)%16],@X[$j%16],@X[$j%16]
 143
 144         sll     $b,30,$t3
 145         addl    $t1,$e,$e
 146         xor     $b,$c,$t2
 147         xor     @X[($j+8)%16],@X[$j%16],@X[$j%16]
 148
 149         srl     $b,2,$b
 150         addl    @X[$i%16],$e,$e
 151         xor     $d,$t2,$t2
 152         xor     @X[($j+13)%16],@X[$j%16],@X[$j%16]
 153
 154         srl     @X[$j%16],31,$t1
 155         addl    $t2,$e,$e
 156         srl     $a,27,$t0
 157         addl    @X[$j%16],@X[$j%16],@X[$j%16]
 158
 159         or      $t3,$b,$b
 160         addl    $t0,$e,$e
 161         or      $t1,@X[$j%16],@X[$j%16]
 162 ___
 163 $code.=<<___ if ($i<77);
 164         zapnot  @X[$i%16],0xf,@X[$i%16]
 165 ___
 166 $code.=<<___ if ($i==79);       # with context fetch
 167         sll     $a,5,$t1
 168         addl    $K,$e,$e
 169         zapnot  $a,0xf,$a
 170         ldl     @X[0],0($ctx)
 171
 172         sll     $b,30,$t3
 173         addl    $t1,$e,$e
 174         xor     $b,$c,$t2
 175         ldl     @X[1],4($ctx)
 176
 177         srl     $b,2,$b
 178         addl    @X[$i%16],$e,$e
 179         xor     $d,$t2,$t2
 180         ldl     @X[2],8($ctx)
 181
 182         srl     $a,27,$t0
 183         addl    $t2,$e,$e
 184         ldl     @X[3],12($ctx)
 185
 186         or      $t3,$b,$b
 187         addl    $t0,$e,$e
 188         ldl     @X[4],16($ctx)
 189 ___
 190 }
 191
 192 sub BODY_40_59 {
 193 my ($i,$a,$b,$c,$d,$e)=@_;
 194 my $j=$i+1;
 195 $code.=<<___;   # with forward Xupdate
 196         sll     $a,5,$t1
 197         addl    $K,$e,$e
 198         zapnot  $a,0xf,$a
 199         xor     @X[($j+2)%16],@X[$j%16],@X[$j%16]
 200
 201         srl     $a,27,$t0
 202         and     $b,$c,$t2
 203         and     $b,$d,$t3
 204         xor     @X[($j+8)%16],@X[$j%16],@X[$j%16]
 205
 206         sll     $b,30,$b
 207         addl    $t1,$e,$e
 208         xor     @X[($j+13)%16],@X[$j%16],@X[$j%16]
 209
 210         srl     @X[$j%16],31,$t1
 211         addl    $t0,$e,$e
 212         or      $t2,$t3,$t2
 213         and     $c,$d,$t3
 214
 215         or      $t2,$t3,$t2
 216         srl     $b,32,$t3
 217         addl    @X[$i%16],$e,$e
 218         addl    @X[$j%16],@X[$j%16],@X[$j%16]
 219
 220         or      $t3,$b,$b
 221         addl    $t2,$e,$e
 222         or      $t1,@X[$j%16],@X[$j%16]
 223         zapnot  @X[$i%16],0xf,@X[$i%16]
 224 ___
 225 }
 226
 227 $code=<<___;
 228 #ifdef __linux__
 229 #include <asm/regdef.h>
 230 #else
 231 #include <asm.h>
 232 #include <regdef.h>
 233 #endif
 234
 235 .text
 236
 237 .set    noat
 238 .set    noreorder
 239 .globl  sha1_block_data_order
 240 .align  5
 241 .ent    sha1_block_data_order
 242 sha1_block_data_order:
 243         lda     sp,-64(sp)
 244         stq     ra,0(sp)
 245         stq     s0,8(sp)
 246         stq     s1,16(sp)
 247         stq     s2,24(sp)
 248         stq     s3,32(sp)
 249         stq     s4,40(sp)
 250         stq     s5,48(sp)
 251         stq     fp,56(sp)
 252         .mask   0x0400fe00,-64
 253         .frame  sp,64,ra
 254         .prologue 0
 255
 256         ldl     $A,0($ctx)
 257         ldl     $B,4($ctx)
 258         sll     $num,6,$num
 259         ldl     $C,8($ctx)
 260         ldl     $D,12($ctx)
 261         ldl     $E,16($ctx)
 262         addq    $inp,$num,$num
 263
 264 .Lloop:
 265         .set    noreorder
 266         ldah    $K,23170(zero)
 267         zapnot  $B,0xf,$B
 268         lda     $K,31129($K)    # K_00_19
 269 ___
 270 for ($i=0;$i<20;$i++) { &BODY_00_19($i,@V); unshift(@V,pop(@V)); }
 271
 272 $code.=<<___;
 273         ldah    $K,28378(zero)
 274         lda     $K,-5215($K)    # K_20_39
 275 ___
 276 for (;$i<40;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
 277
 278 $code.=<<___;
 279         ldah    $K,-28900(zero)
 280         lda     $K,-17188($K)   # K_40_59
 281 ___
 282 for (;$i<60;$i++) { &BODY_40_59($i,@V); unshift(@V,pop(@V)); }
 283
 284 $code.=<<___;
 285         ldah    $K,-13725(zero)
 286         lda     $K,-15914($K)   # K_60_79
 287 ___
 288 for (;$i<80;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
 289
 290 $code.=<<___;
 291         addl    @X[0],$A,$A
 292         addl    @X[1],$B,$B
 293         addl    @X[2],$C,$C
 294         addl    @X[3],$D,$D
 295         addl    @X[4],$E,$E
 296         stl     $A,0($ctx)
 297         stl     $B,4($ctx)
 298         addq    $inp,64,$inp
 299         stl     $C,8($ctx)
 300         stl     $D,12($ctx)
 301         stl     $E,16($ctx)
 302         cmpult  $inp,$num,$t1
 303         bne     $t1,.Lloop
 304
 305         .set    noreorder
 306         ldq     ra,0(sp)
 307         ldq     s0,8(sp)
 308         ldq     s1,16(sp)
 309         ldq     s2,24(sp)
 310         ldq     s3,32(sp)
 311         ldq     s4,40(sp)
 312         ldq     s5,48(sp)
 313         ldq     fp,56(sp)
 314         lda     sp,64(sp)
 315         ret     (ra)
 316 .end    sha1_block_data_order
 317 .ascii  "SHA1 block transform for Alpha, CRYPTOGAMS by <appro\@openssl.org>"
 318 .align  2
 319 ___
 320 $output=shift and open STDOUT,">$output";
 321 print $code;
 322 close STDOUT;