| 1 | #! /usr/bin/env perl
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| 2 | # Copyright 2014-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | #
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| 4 | # Licensed under the OpenSSL license (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 | # SHA256/512 for ARMv8.
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| 18 | #
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| 19 | # Performance in cycles per processed byte and improvement coefficient
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| 20 | # over code generated with "default" compiler:
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| 21 | #
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| 22 | # SHA256-hw SHA256(*) SHA512
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| 23 | # Apple A7 1.97 10.5 (+33%) 6.73 (-1%(**))
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| 24 | # Cortex-A53 2.38 15.5 (+115%) 10.0 (+150%(***))
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| 25 | # Cortex-A57 2.31 11.6 (+86%) 7.51 (+260%(***))
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| 26 | # Denver 2.01 10.5 (+26%) 6.70 (+8%)
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| 27 | # X-Gene 20.0 (+100%) 12.8 (+300%(***))
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| 28 | # Mongoose 2.36 13.0 (+50%) 8.36 (+33%)
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| 29 | #
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| 30 | # (*) Software SHA256 results are of lesser relevance, presented
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| 31 | # mostly for informational purposes.
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| 32 | # (**) The result is a trade-off: it's possible to improve it by
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| 33 | # 10% (or by 1 cycle per round), but at the cost of 20% loss
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| 34 | # on Cortex-A53 (or by 4 cycles per round).
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| 35 | # (***) Super-impressive coefficients over gcc-generated code are
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| 36 | # indication of some compiler "pathology", most notably code
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| 37 | # generated with -mgeneral-regs-only is significanty faster
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| 38 | # and the gap is only 40-90%.
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| 39 |
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| 40 | $flavour=shift;
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| 41 | $output=shift;
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| 42 |
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| 43 | $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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| 44 | ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
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| 45 | ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
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| 46 | die "can't locate arm-xlate.pl";
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| 47 |
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| 48 | open OUT,"| \"$^X\" $xlate $flavour $output";
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| 49 | *STDOUT=*OUT;
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| 50 |
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| 51 | if ($output =~ /512/) {
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| 52 | $BITS=512;
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| 53 | $SZ=8;
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| 54 | @Sigma0=(28,34,39);
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| 55 | @Sigma1=(14,18,41);
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| 56 | @sigma0=(1, 8, 7);
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| 57 | @sigma1=(19,61, 6);
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| 58 | $rounds=80;
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| 59 | $reg_t="x";
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| 60 | } else {
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| 61 | $BITS=256;
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| 62 | $SZ=4;
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| 63 | @Sigma0=( 2,13,22);
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| 64 | @Sigma1=( 6,11,25);
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| 65 | @sigma0=( 7,18, 3);
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| 66 | @sigma1=(17,19,10);
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| 67 | $rounds=64;
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| 68 | $reg_t="w";
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| 69 | }
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| 70 |
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| 71 | $func="sha${BITS}_block_data_order";
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| 72 |
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| 73 | ($ctx,$inp,$num,$Ktbl)=map("x$_",(0..2,30));
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| 74 |
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| 75 | @X=map("$reg_t$_",(3..15,0..2));
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| 76 | @V=($A,$B,$C,$D,$E,$F,$G,$H)=map("$reg_t$_",(20..27));
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| 77 | ($t0,$t1,$t2,$t3)=map("$reg_t$_",(16,17,19,28));
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| 78 |
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| 79 | sub BODY_00_xx {
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| 80 | my ($i,$a,$b,$c,$d,$e,$f,$g,$h)=@_;
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| 81 | my $j=($i+1)&15;
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| 82 | my ($T0,$T1,$T2)=(@X[($i-8)&15],@X[($i-9)&15],@X[($i-10)&15]);
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| 83 | $T0=@X[$i+3] if ($i<11);
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| 84 |
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| 85 | $code.=<<___ if ($i<16);
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| 86 | #ifndef __ARMEB__
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| 87 | rev @X[$i],@X[$i] // $i
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| 88 | #endif
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| 89 | ___
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| 90 | $code.=<<___ if ($i<13 && ($i&1));
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| 91 | ldp @X[$i+1],@X[$i+2],[$inp],#2*$SZ
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| 92 | ___
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| 93 | $code.=<<___ if ($i==13);
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| 94 | ldp @X[14],@X[15],[$inp]
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| 95 | ___
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| 96 | $code.=<<___ if ($i>=14);
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| 97 | ldr @X[($i-11)&15],[sp,#`$SZ*(($i-11)%4)`]
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| 98 | ___
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| 99 | $code.=<<___ if ($i>0 && $i<16);
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| 100 | add $a,$a,$t1 // h+=Sigma0(a)
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| 101 | ___
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| 102 | $code.=<<___ if ($i>=11);
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| 103 | str @X[($i-8)&15],[sp,#`$SZ*(($i-8)%4)`]
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| 104 | ___
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| 105 | # While ARMv8 specifies merged rotate-n-logical operation such as
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| 106 | # 'eor x,y,z,ror#n', it was found to negatively affect performance
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| 107 | # on Apple A7. The reason seems to be that it requires even 'y' to
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| 108 | # be available earlier. This means that such merged instruction is
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| 109 | # not necessarily best choice on critical path... On the other hand
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| 110 | # Cortex-A5x handles merged instructions much better than disjoint
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| 111 | # rotate and logical... See (**) footnote above.
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| 112 | $code.=<<___ if ($i<15);
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| 113 | ror $t0,$e,#$Sigma1[0]
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| 114 | add $h,$h,$t2 // h+=K[i]
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| 115 | eor $T0,$e,$e,ror#`$Sigma1[2]-$Sigma1[1]`
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| 116 | and $t1,$f,$e
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| 117 | bic $t2,$g,$e
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| 118 | add $h,$h,@X[$i&15] // h+=X[i]
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| 119 | orr $t1,$t1,$t2 // Ch(e,f,g)
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| 120 | eor $t2,$a,$b // a^b, b^c in next round
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| 121 | eor $t0,$t0,$T0,ror#$Sigma1[1] // Sigma1(e)
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| 122 | ror $T0,$a,#$Sigma0[0]
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| 123 | add $h,$h,$t1 // h+=Ch(e,f,g)
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| 124 | eor $t1,$a,$a,ror#`$Sigma0[2]-$Sigma0[1]`
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| 125 | add $h,$h,$t0 // h+=Sigma1(e)
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| 126 | and $t3,$t3,$t2 // (b^c)&=(a^b)
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| 127 | add $d,$d,$h // d+=h
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| 128 | eor $t3,$t3,$b // Maj(a,b,c)
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| 129 | eor $t1,$T0,$t1,ror#$Sigma0[1] // Sigma0(a)
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| 130 | add $h,$h,$t3 // h+=Maj(a,b,c)
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| 131 | ldr $t3,[$Ktbl],#$SZ // *K++, $t2 in next round
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| 132 | //add $h,$h,$t1 // h+=Sigma0(a)
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| 133 | ___
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| 134 | $code.=<<___ if ($i>=15);
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| 135 | ror $t0,$e,#$Sigma1[0]
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| 136 | add $h,$h,$t2 // h+=K[i]
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| 137 | ror $T1,@X[($j+1)&15],#$sigma0[0]
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| 138 | and $t1,$f,$e
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| 139 | ror $T2,@X[($j+14)&15],#$sigma1[0]
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| 140 | bic $t2,$g,$e
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| 141 | ror $T0,$a,#$Sigma0[0]
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| 142 | add $h,$h,@X[$i&15] // h+=X[i]
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| 143 | eor $t0,$t0,$e,ror#$Sigma1[1]
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| 144 | eor $T1,$T1,@X[($j+1)&15],ror#$sigma0[1]
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| 145 | orr $t1,$t1,$t2 // Ch(e,f,g)
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| 146 | eor $t2,$a,$b // a^b, b^c in next round
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| 147 | eor $t0,$t0,$e,ror#$Sigma1[2] // Sigma1(e)
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| 148 | eor $T0,$T0,$a,ror#$Sigma0[1]
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| 149 | add $h,$h,$t1 // h+=Ch(e,f,g)
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| 150 | and $t3,$t3,$t2 // (b^c)&=(a^b)
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| 151 | eor $T2,$T2,@X[($j+14)&15],ror#$sigma1[1]
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| 152 | eor $T1,$T1,@X[($j+1)&15],lsr#$sigma0[2] // sigma0(X[i+1])
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| 153 | add $h,$h,$t0 // h+=Sigma1(e)
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| 154 | eor $t3,$t3,$b // Maj(a,b,c)
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| 155 | eor $t1,$T0,$a,ror#$Sigma0[2] // Sigma0(a)
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| 156 | eor $T2,$T2,@X[($j+14)&15],lsr#$sigma1[2] // sigma1(X[i+14])
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| 157 | add @X[$j],@X[$j],@X[($j+9)&15]
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| 158 | add $d,$d,$h // d+=h
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| 159 | add $h,$h,$t3 // h+=Maj(a,b,c)
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| 160 | ldr $t3,[$Ktbl],#$SZ // *K++, $t2 in next round
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| 161 | add @X[$j],@X[$j],$T1
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| 162 | add $h,$h,$t1 // h+=Sigma0(a)
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| 163 | add @X[$j],@X[$j],$T2
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| 164 | ___
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| 165 | ($t2,$t3)=($t3,$t2);
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| 166 | }
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| 167 |
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| 168 | $code.=<<___;
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| 169 | #include "arm_arch.h"
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| 170 |
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| 171 | .text
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| 172 |
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| 173 | .extern OPENSSL_armcap_P
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| 174 | .globl $func
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| 175 | .type $func,%function
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| 176 | .align 6
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| 177 | $func:
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| 178 | ___
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| 179 | $code.=<<___ if ($SZ==4);
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| 180 | #ifdef __ILP32__
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| 181 | ldrsw x16,.LOPENSSL_armcap_P
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| 182 | #else
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| 183 | ldr x16,.LOPENSSL_armcap_P
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| 184 | #endif
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| 185 | adr x17,.LOPENSSL_armcap_P
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| 186 | add x16,x16,x17
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| 187 | ldr w16,[x16]
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| 188 | tst w16,#ARMV8_SHA256
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| 189 | b.ne .Lv8_entry
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| 190 | ___
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| 191 | $code.=<<___;
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| 192 | stp x29,x30,[sp,#-128]!
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| 193 | add x29,sp,#0
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| 194 |
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| 195 | stp x19,x20,[sp,#16]
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| 196 | stp x21,x22,[sp,#32]
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| 197 | stp x23,x24,[sp,#48]
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| 198 | stp x25,x26,[sp,#64]
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| 199 | stp x27,x28,[sp,#80]
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| 200 | sub sp,sp,#4*$SZ
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| 201 |
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| 202 | ldp $A,$B,[$ctx] // load context
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| 203 | ldp $C,$D,[$ctx,#2*$SZ]
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| 204 | ldp $E,$F,[$ctx,#4*$SZ]
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| 205 | add $num,$inp,$num,lsl#`log(16*$SZ)/log(2)` // end of input
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| 206 | ldp $G,$H,[$ctx,#6*$SZ]
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| 207 | adr $Ktbl,.LK$BITS
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| 208 | stp $ctx,$num,[x29,#96]
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| 209 |
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| 210 | .Loop:
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| 211 | ldp @X[0],@X[1],[$inp],#2*$SZ
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| 212 | ldr $t2,[$Ktbl],#$SZ // *K++
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| 213 | eor $t3,$B,$C // magic seed
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| 214 | str $inp,[x29,#112]
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| 215 | ___
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| 216 | for ($i=0;$i<16;$i++) { &BODY_00_xx($i,@V); unshift(@V,pop(@V)); }
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| 217 | $code.=".Loop_16_xx:\n";
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| 218 | for (;$i<32;$i++) { &BODY_00_xx($i,@V); unshift(@V,pop(@V)); }
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| 219 | $code.=<<___;
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| 220 | cbnz $t2,.Loop_16_xx
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| 221 |
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| 222 | ldp $ctx,$num,[x29,#96]
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| 223 | ldr $inp,[x29,#112]
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| 224 | sub $Ktbl,$Ktbl,#`$SZ*($rounds+1)` // rewind
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| 225 |
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| 226 | ldp @X[0],@X[1],[$ctx]
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| 227 | ldp @X[2],@X[3],[$ctx,#2*$SZ]
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| 228 | add $inp,$inp,#14*$SZ // advance input pointer
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| 229 | ldp @X[4],@X[5],[$ctx,#4*$SZ]
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| 230 | add $A,$A,@X[0]
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| 231 | ldp @X[6],@X[7],[$ctx,#6*$SZ]
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| 232 | add $B,$B,@X[1]
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| 233 | add $C,$C,@X[2]
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| 234 | add $D,$D,@X[3]
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| 235 | stp $A,$B,[$ctx]
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| 236 | add $E,$E,@X[4]
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| 237 | add $F,$F,@X[5]
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| 238 | stp $C,$D,[$ctx,#2*$SZ]
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| 239 | add $G,$G,@X[6]
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| 240 | add $H,$H,@X[7]
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| 241 | cmp $inp,$num
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| 242 | stp $E,$F,[$ctx,#4*$SZ]
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| 243 | stp $G,$H,[$ctx,#6*$SZ]
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| 244 | b.ne .Loop
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| 245 |
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| 246 | ldp x19,x20,[x29,#16]
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| 247 | add sp,sp,#4*$SZ
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| 248 | ldp x21,x22,[x29,#32]
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| 249 | ldp x23,x24,[x29,#48]
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| 250 | ldp x25,x26,[x29,#64]
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| 251 | ldp x27,x28,[x29,#80]
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| 252 | ldp x29,x30,[sp],#128
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| 253 | ret
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| 254 | .size $func,.-$func
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| 255 |
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| 256 | .align 6
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| 257 | .type .LK$BITS,%object
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| 258 | .LK$BITS:
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| 259 | ___
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| 260 | $code.=<<___ if ($SZ==8);
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| 261 | .quad 0x428a2f98d728ae22,0x7137449123ef65cd
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| 262 | .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
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| 263 | .quad 0x3956c25bf348b538,0x59f111f1b605d019
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| 264 | .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118
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| 265 | .quad 0xd807aa98a3030242,0x12835b0145706fbe
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| 266 | .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
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| 267 | .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1
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| 268 | .quad 0x9bdc06a725c71235,0xc19bf174cf692694
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| 269 | .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3
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| 270 | .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
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| 271 | .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483
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| 272 | .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5
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| 273 | .quad 0x983e5152ee66dfab,0xa831c66d2db43210
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| 274 | .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4
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| 275 | .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725
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| 276 | .quad 0x06ca6351e003826f,0x142929670a0e6e70
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| 277 | .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926
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| 278 | .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df
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| 279 | .quad 0x650a73548baf63de,0x766a0abb3c77b2a8
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| 280 | .quad 0x81c2c92e47edaee6,0x92722c851482353b
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| 281 | .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001
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| 282 | .quad 0xc24b8b70d0f89791,0xc76c51a30654be30
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| 283 | .quad 0xd192e819d6ef5218,0xd69906245565a910
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| 284 | .quad 0xf40e35855771202a,0x106aa07032bbd1b8
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| 285 | .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53
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| 286 | .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
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| 287 | .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
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| 288 | .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
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| 289 | .quad 0x748f82ee5defb2fc,0x78a5636f43172f60
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| 290 | .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec
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| 291 | .quad 0x90befffa23631e28,0xa4506cebde82bde9
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| 292 | .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b
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| 293 | .quad 0xca273eceea26619c,0xd186b8c721c0c207
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| 294 | .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
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| 295 | .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6
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| 296 | .quad 0x113f9804bef90dae,0x1b710b35131c471b
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| 297 | .quad 0x28db77f523047d84,0x32caab7b40c72493
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| 298 | .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
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| 299 | .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a
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| 300 | .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817
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| 301 | .quad 0 // terminator
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| 302 | ___
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| 303 | $code.=<<___ if ($SZ==4);
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| 304 | .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
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| 305 | .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
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| 306 | .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
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| 307 | .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
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| 308 | .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
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| 309 | .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
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| 310 | .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
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| 311 | .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
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| 312 | .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
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| 313 | .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
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| 314 | .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
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| 315 | .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
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| 316 | .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
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| 317 | .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
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| 318 | .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
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| 319 | .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
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| 320 | .long 0 //terminator
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| 321 | ___
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| 322 | $code.=<<___;
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| 323 | .size .LK$BITS,.-.LK$BITS
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| 324 | .align 3
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| 325 | .LOPENSSL_armcap_P:
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| 326 | #ifdef __ILP32__
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| 327 | .long OPENSSL_armcap_P-.
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| 328 | #else
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| 329 | .quad OPENSSL_armcap_P-.
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| 330 | #endif
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| 331 | .asciz "SHA$BITS block transform for ARMv8, CRYPTOGAMS by <appro\@openssl.org>"
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| 332 | .align 2
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| 333 | ___
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| 334 |
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| 335 | if ($SZ==4) {
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| 336 | my $Ktbl="x3";
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| 337 |
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| 338 | my ($ABCD,$EFGH,$abcd)=map("v$_.16b",(0..2));
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| 339 | my @MSG=map("v$_.16b",(4..7));
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| 340 | my ($W0,$W1)=("v16.4s","v17.4s");
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| 341 | my ($ABCD_SAVE,$EFGH_SAVE)=("v18.16b","v19.16b");
|
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| 342 |
|
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| 343 | $code.=<<___;
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| 344 | .type sha256_block_armv8,%function
|
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| 345 | .align 6
|
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| 346 | sha256_block_armv8:
|
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| 347 | .Lv8_entry:
|
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| 348 | stp x29,x30,[sp,#-16]!
|
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| 349 | add x29,sp,#0
|
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| 350 |
|
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| 351 | ld1.32 {$ABCD,$EFGH},[$ctx]
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| 352 | adr $Ktbl,.LK256
|
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| 353 |
|
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| 354 | .Loop_hw:
|
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| 355 | ld1 {@MSG[0]-@MSG[3]},[$inp],#64
|
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| 356 | sub $num,$num,#1
|
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| 357 | ld1.32 {$W0},[$Ktbl],#16
|
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| 358 | rev32 @MSG[0],@MSG[0]
|
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| 359 | rev32 @MSG[1],@MSG[1]
|
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| 360 | rev32 @MSG[2],@MSG[2]
|
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| 361 | rev32 @MSG[3],@MSG[3]
|
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| 362 | orr $ABCD_SAVE,$ABCD,$ABCD // offload
|
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| 363 | orr $EFGH_SAVE,$EFGH,$EFGH
|
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| 364 | ___
|
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| 365 | for($i=0;$i<12;$i++) {
|
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| 366 | $code.=<<___;
|
|---|
| 367 | ld1.32 {$W1},[$Ktbl],#16
|
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| 368 | add.i32 $W0,$W0,@MSG[0]
|
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| 369 | sha256su0 @MSG[0],@MSG[1]
|
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| 370 | orr $abcd,$ABCD,$ABCD
|
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| 371 | sha256h $ABCD,$EFGH,$W0
|
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| 372 | sha256h2 $EFGH,$abcd,$W0
|
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| 373 | sha256su1 @MSG[0],@MSG[2],@MSG[3]
|
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| 374 | ___
|
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| 375 | ($W0,$W1)=($W1,$W0); push(@MSG,shift(@MSG));
|
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| 376 | }
|
|---|
| 377 | $code.=<<___;
|
|---|
| 378 | ld1.32 {$W1},[$Ktbl],#16
|
|---|
| 379 | add.i32 $W0,$W0,@MSG[0]
|
|---|
| 380 | orr $abcd,$ABCD,$ABCD
|
|---|
| 381 | sha256h $ABCD,$EFGH,$W0
|
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| 382 | sha256h2 $EFGH,$abcd,$W0
|
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| 383 |
|
|---|
| 384 | ld1.32 {$W0},[$Ktbl],#16
|
|---|
| 385 | add.i32 $W1,$W1,@MSG[1]
|
|---|
| 386 | orr $abcd,$ABCD,$ABCD
|
|---|
| 387 | sha256h $ABCD,$EFGH,$W1
|
|---|
| 388 | sha256h2 $EFGH,$abcd,$W1
|
|---|
| 389 |
|
|---|
| 390 | ld1.32 {$W1},[$Ktbl]
|
|---|
| 391 | add.i32 $W0,$W0,@MSG[2]
|
|---|
| 392 | sub $Ktbl,$Ktbl,#$rounds*$SZ-16 // rewind
|
|---|
| 393 | orr $abcd,$ABCD,$ABCD
|
|---|
| 394 | sha256h $ABCD,$EFGH,$W0
|
|---|
| 395 | sha256h2 $EFGH,$abcd,$W0
|
|---|
| 396 |
|
|---|
| 397 | add.i32 $W1,$W1,@MSG[3]
|
|---|
| 398 | orr $abcd,$ABCD,$ABCD
|
|---|
| 399 | sha256h $ABCD,$EFGH,$W1
|
|---|
| 400 | sha256h2 $EFGH,$abcd,$W1
|
|---|
| 401 |
|
|---|
| 402 | add.i32 $ABCD,$ABCD,$ABCD_SAVE
|
|---|
| 403 | add.i32 $EFGH,$EFGH,$EFGH_SAVE
|
|---|
| 404 |
|
|---|
| 405 | cbnz $num,.Loop_hw
|
|---|
| 406 |
|
|---|
| 407 | st1.32 {$ABCD,$EFGH},[$ctx]
|
|---|
| 408 |
|
|---|
| 409 | ldr x29,[sp],#16
|
|---|
| 410 | ret
|
|---|
| 411 | .size sha256_block_armv8,.-sha256_block_armv8
|
|---|
| 412 | ___
|
|---|
| 413 | }
|
|---|
| 414 |
|
|---|
| 415 | $code.=<<___;
|
|---|
| 416 | .comm OPENSSL_armcap_P,4,4
|
|---|
| 417 | ___
|
|---|
| 418 |
|
|---|
| 419 | { my %opcode = (
|
|---|
| 420 | "sha256h" => 0x5e004000, "sha256h2" => 0x5e005000,
|
|---|
| 421 | "sha256su0" => 0x5e282800, "sha256su1" => 0x5e006000 );
|
|---|
| 422 |
|
|---|
| 423 | sub unsha256 {
|
|---|
| 424 | my ($mnemonic,$arg)=@_;
|
|---|
| 425 |
|
|---|
| 426 | $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+))?/o
|
|---|
| 427 | &&
|
|---|
| 428 | sprintf ".inst\t0x%08x\t//%s %s",
|
|---|
| 429 | $opcode{$mnemonic}|$1|($2<<5)|($3<<16),
|
|---|
| 430 | $mnemonic,$arg;
|
|---|
| 431 | }
|
|---|
| 432 | }
|
|---|
| 433 |
|
|---|
| 434 | foreach(split("\n",$code)) {
|
|---|
| 435 |
|
|---|
| 436 | s/\`([^\`]*)\`/eval($1)/geo;
|
|---|
| 437 |
|
|---|
| 438 | s/\b(sha256\w+)\s+([qv].*)/unsha256($1,$2)/geo;
|
|---|
| 439 |
|
|---|
| 440 | s/\.\w?32\b//o and s/\.16b/\.4s/go;
|
|---|
| 441 | m/(ld|st)1[^\[]+\[0\]/o and s/\.4s/\.s/go;
|
|---|
| 442 |
|
|---|
| 443 | print $_,"\n";
|
|---|
| 444 | }
|
|---|
| 445 |
|
|---|
| 446 | close STDOUT;
|
|---|
