1 | #! /usr/bin/env perl
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2 | # Copyright 2009-2020 The OpenSSL Project Authors. All Rights Reserved.
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3 | #
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4 | # Licensed under the Apache License 2.0 (the "License"). You may not use
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5 | # this file except in compliance with the License. You can obtain a copy
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6 | # in the file LICENSE in the source distribution or at
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7 | # https://www.openssl.org/source/license.html
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8 |
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9 |
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10 | # ====================================================================
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11 | # Written by Andy Polyakov <[email protected]> for the OpenSSL
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12 | # project. The module is, however, dual licensed under OpenSSL and
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13 | # CRYPTOGAMS licenses depending on where you obtain it. For further
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14 | # details see http://www.openssl.org/~appro/cryptogams/.
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15 | # ====================================================================
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16 |
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17 | # SHA1 block procedure for Alpha.
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18 |
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19 | # On 21264 performance is 33% better than code generated by vendor
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20 | # compiler, and 75% better than GCC [3.4], and in absolute terms is
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21 | # 8.7 cycles per processed byte. Implementation features vectorized
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22 | # byte swap, but not Xupdate.
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23 |
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24 | @X=( "\$0", "\$1", "\$2", "\$3", "\$4", "\$5", "\$6", "\$7",
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25 | "\$8", "\$9", "\$10", "\$11", "\$12", "\$13", "\$14", "\$15");
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26 | $ctx="a0"; # $16
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27 | $inp="a1";
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28 | $num="a2";
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29 | $A="a3";
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30 | $B="a4"; # 20
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31 | $C="a5";
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32 | $D="t8";
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33 | $E="t9"; @V=($A,$B,$C,$D,$E);
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34 | $t0="t10"; # 24
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35 | $t1="t11";
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36 | $t2="ra";
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37 | $t3="t12";
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38 | $K="AT"; # 28
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39 |
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40 | sub BODY_00_19 {
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41 | my ($i,$a,$b,$c,$d,$e)=@_;
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42 | my $j=$i+1;
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43 | $code.=<<___ if ($i==0);
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44 | ldq_u @X[0],0+0($inp)
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45 | ldq_u @X[1],0+7($inp)
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46 | ___
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47 | $code.=<<___ if (!($i&1) && $i<14);
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48 | ldq_u @X[$i+2],($i+2)*4+0($inp)
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49 | ldq_u @X[$i+3],($i+2)*4+7($inp)
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50 | ___
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51 | $code.=<<___ if (!($i&1) && $i<15);
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52 | extql @X[$i],$inp,@X[$i]
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53 | extqh @X[$i+1],$inp,@X[$i+1]
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54 |
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55 | or @X[$i+1],@X[$i],@X[$i] # pair of 32-bit values are fetched
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56 |
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57 | srl @X[$i],24,$t0 # vectorized byte swap
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58 | srl @X[$i],8,$t2
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59 |
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60 | sll @X[$i],8,$t3
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61 | sll @X[$i],24,@X[$i]
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62 | zapnot $t0,0x11,$t0
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63 | zapnot $t2,0x22,$t2
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64 |
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65 | zapnot @X[$i],0x88,@X[$i]
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66 | or $t0,$t2,$t0
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67 | zapnot $t3,0x44,$t3
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68 | sll $a,5,$t1
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69 |
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70 | or @X[$i],$t0,@X[$i]
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71 | addl $K,$e,$e
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72 | and $b,$c,$t2
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73 | zapnot $a,0xf,$a
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74 |
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75 | or @X[$i],$t3,@X[$i]
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76 | srl $a,27,$t0
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77 | bic $d,$b,$t3
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78 | sll $b,30,$b
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79 |
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80 | extll @X[$i],4,@X[$i+1] # extract upper half
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81 | or $t2,$t3,$t2
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82 | addl @X[$i],$e,$e
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83 |
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84 | addl $t1,$e,$e
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85 | srl $b,32,$t3
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86 | zapnot @X[$i],0xf,@X[$i]
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87 |
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88 | addl $t0,$e,$e
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89 | addl $t2,$e,$e
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90 | or $t3,$b,$b
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91 | ___
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92 | $code.=<<___ if (($i&1) && $i<15);
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93 | sll $a,5,$t1
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94 | addl $K,$e,$e
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95 | and $b,$c,$t2
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96 | zapnot $a,0xf,$a
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97 |
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98 | srl $a,27,$t0
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99 | addl @X[$i%16],$e,$e
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100 | bic $d,$b,$t3
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101 | sll $b,30,$b
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102 |
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103 | or $t2,$t3,$t2
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104 | addl $t1,$e,$e
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105 | srl $b,32,$t3
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106 | zapnot @X[$i],0xf,@X[$i]
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107 |
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108 | addl $t0,$e,$e
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109 | addl $t2,$e,$e
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110 | or $t3,$b,$b
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111 | ___
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112 | $code.=<<___ if ($i>=15); # with forward Xupdate
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113 | sll $a,5,$t1
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114 | addl $K,$e,$e
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115 | and $b,$c,$t2
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116 | xor @X[($j+2)%16],@X[$j%16],@X[$j%16]
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117 |
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118 | zapnot $a,0xf,$a
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119 | addl @X[$i%16],$e,$e
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120 | bic $d,$b,$t3
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121 | xor @X[($j+8)%16],@X[$j%16],@X[$j%16]
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122 |
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123 | srl $a,27,$t0
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124 | addl $t1,$e,$e
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125 | or $t2,$t3,$t2
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126 | xor @X[($j+13)%16],@X[$j%16],@X[$j%16]
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127 |
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128 | sll $b,30,$b
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129 | addl $t0,$e,$e
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130 | srl @X[$j%16],31,$t1
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131 |
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132 | addl $t2,$e,$e
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133 | srl $b,32,$t3
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134 | addl @X[$j%16],@X[$j%16],@X[$j%16]
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135 |
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136 | or $t3,$b,$b
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137 | zapnot @X[$i%16],0xf,@X[$i%16]
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138 | or $t1,@X[$j%16],@X[$j%16]
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139 | ___
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140 | }
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141 |
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142 | sub BODY_20_39 {
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143 | my ($i,$a,$b,$c,$d,$e)=@_;
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144 | my $j=$i+1;
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145 | $code.=<<___ if ($i<79); # with forward Xupdate
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146 | sll $a,5,$t1
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147 | addl $K,$e,$e
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148 | zapnot $a,0xf,$a
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149 | xor @X[($j+2)%16],@X[$j%16],@X[$j%16]
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150 |
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151 | sll $b,30,$t3
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152 | addl $t1,$e,$e
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153 | xor $b,$c,$t2
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154 | xor @X[($j+8)%16],@X[$j%16],@X[$j%16]
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155 |
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156 | srl $b,2,$b
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157 | addl @X[$i%16],$e,$e
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158 | xor $d,$t2,$t2
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159 | xor @X[($j+13)%16],@X[$j%16],@X[$j%16]
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160 |
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161 | srl @X[$j%16],31,$t1
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162 | addl $t2,$e,$e
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163 | srl $a,27,$t0
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164 | addl @X[$j%16],@X[$j%16],@X[$j%16]
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165 |
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166 | or $t3,$b,$b
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167 | addl $t0,$e,$e
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168 | or $t1,@X[$j%16],@X[$j%16]
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169 | ___
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170 | $code.=<<___ if ($i<77);
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171 | zapnot @X[$i%16],0xf,@X[$i%16]
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172 | ___
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173 | $code.=<<___ if ($i==79); # with context fetch
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174 | sll $a,5,$t1
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175 | addl $K,$e,$e
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176 | zapnot $a,0xf,$a
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177 | ldl @X[0],0($ctx)
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178 |
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179 | sll $b,30,$t3
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180 | addl $t1,$e,$e
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181 | xor $b,$c,$t2
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182 | ldl @X[1],4($ctx)
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183 |
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184 | srl $b,2,$b
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185 | addl @X[$i%16],$e,$e
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186 | xor $d,$t2,$t2
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187 | ldl @X[2],8($ctx)
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188 |
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189 | srl $a,27,$t0
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190 | addl $t2,$e,$e
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191 | ldl @X[3],12($ctx)
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192 |
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193 | or $t3,$b,$b
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194 | addl $t0,$e,$e
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195 | ldl @X[4],16($ctx)
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196 | ___
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197 | }
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198 |
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199 | sub BODY_40_59 {
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200 | my ($i,$a,$b,$c,$d,$e)=@_;
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201 | my $j=$i+1;
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202 | $code.=<<___; # with forward Xupdate
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203 | sll $a,5,$t1
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204 | addl $K,$e,$e
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205 | zapnot $a,0xf,$a
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206 | xor @X[($j+2)%16],@X[$j%16],@X[$j%16]
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207 |
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208 | srl $a,27,$t0
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209 | and $b,$c,$t2
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210 | and $b,$d,$t3
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211 | xor @X[($j+8)%16],@X[$j%16],@X[$j%16]
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212 |
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213 | sll $b,30,$b
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214 | addl $t1,$e,$e
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215 | xor @X[($j+13)%16],@X[$j%16],@X[$j%16]
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216 |
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217 | srl @X[$j%16],31,$t1
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218 | addl $t0,$e,$e
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219 | or $t2,$t3,$t2
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220 | and $c,$d,$t3
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221 |
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222 | or $t2,$t3,$t2
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223 | srl $b,32,$t3
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224 | addl @X[$i%16],$e,$e
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225 | addl @X[$j%16],@X[$j%16],@X[$j%16]
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226 |
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227 | or $t3,$b,$b
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228 | addl $t2,$e,$e
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229 | or $t1,@X[$j%16],@X[$j%16]
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230 | zapnot @X[$i%16],0xf,@X[$i%16]
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231 | ___
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232 | }
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233 |
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234 | $code=<<___;
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235 | #ifdef __linux__
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236 | #include <asm/regdef.h>
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237 | #else
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238 | #include <asm.h>
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239 | #include <regdef.h>
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240 | #endif
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241 |
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242 | .text
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243 |
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244 | .set noat
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245 | .set noreorder
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246 | .globl sha1_block_data_order
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247 | .align 5
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248 | .ent sha1_block_data_order
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249 | sha1_block_data_order:
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250 | lda sp,-64(sp)
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251 | stq ra,0(sp)
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252 | stq s0,8(sp)
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253 | stq s1,16(sp)
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254 | stq s2,24(sp)
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255 | stq s3,32(sp)
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256 | stq s4,40(sp)
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257 | stq s5,48(sp)
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258 | stq fp,56(sp)
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259 | .mask 0x0400fe00,-64
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260 | .frame sp,64,ra
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261 | .prologue 0
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262 |
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263 | ldl $A,0($ctx)
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264 | ldl $B,4($ctx)
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265 | sll $num,6,$num
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266 | ldl $C,8($ctx)
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267 | ldl $D,12($ctx)
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268 | ldl $E,16($ctx)
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269 | addq $inp,$num,$num
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270 |
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271 | .Lloop:
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272 | .set noreorder
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273 | ldah $K,23170(zero)
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274 | zapnot $B,0xf,$B
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275 | lda $K,31129($K) # K_00_19
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276 | ___
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277 | for ($i=0;$i<20;$i++) { &BODY_00_19($i,@V); unshift(@V,pop(@V)); }
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278 |
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279 | $code.=<<___;
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280 | ldah $K,28378(zero)
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281 | lda $K,-5215($K) # K_20_39
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282 | ___
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283 | for (;$i<40;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
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284 |
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285 | $code.=<<___;
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286 | ldah $K,-28900(zero)
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287 | lda $K,-17188($K) # K_40_59
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288 | ___
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289 | for (;$i<60;$i++) { &BODY_40_59($i,@V); unshift(@V,pop(@V)); }
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290 |
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291 | $code.=<<___;
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292 | ldah $K,-13725(zero)
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293 | lda $K,-15914($K) # K_60_79
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294 | ___
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295 | for (;$i<80;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
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296 |
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297 | $code.=<<___;
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298 | addl @X[0],$A,$A
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299 | addl @X[1],$B,$B
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300 | addl @X[2],$C,$C
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301 | addl @X[3],$D,$D
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302 | addl @X[4],$E,$E
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303 | stl $A,0($ctx)
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304 | stl $B,4($ctx)
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305 | addq $inp,64,$inp
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306 | stl $C,8($ctx)
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307 | stl $D,12($ctx)
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308 | stl $E,16($ctx)
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309 | cmpult $inp,$num,$t1
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310 | bne $t1,.Lloop
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311 |
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312 | .set noreorder
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313 | ldq ra,0(sp)
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314 | ldq s0,8(sp)
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315 | ldq s1,16(sp)
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316 | ldq s2,24(sp)
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317 | ldq s3,32(sp)
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318 | ldq s4,40(sp)
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319 | ldq s5,48(sp)
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320 | ldq fp,56(sp)
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321 | lda sp,64(sp)
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322 | ret (ra)
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323 | .end sha1_block_data_order
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324 | .ascii "SHA1 block transform for Alpha, CRYPTOGAMS by <appro\@openssl.org>"
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325 | .align 2
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326 | ___
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327 | $output=pop and open STDOUT,">$output";
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328 | print $code;
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329 | close STDOUT or die "error closing STDOUT: $!";
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