| 1 | #! /usr/bin/env perl
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| 2 | # Copyright 2014-2020 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 | # SHA256/512 for PowerISA v2.07.
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| 18 | #
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| 19 | # Accurate performance measurements are problematic, because it's
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| 20 | # always virtualized setup with possibly throttled processor.
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| 21 | # Relative comparison is therefore more informative. This module is
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| 22 | # ~60% faster than integer-only sha512-ppc.pl. To anchor to something
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| 23 | # else, SHA256 is 24% slower than sha1-ppc.pl and 2.5x slower than
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| 24 | # hardware-assisted aes-128-cbc encrypt. SHA512 is 20% faster than
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| 25 | # sha1-ppc.pl and 1.6x slower than aes-128-cbc. Another interesting
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| 26 | # result is degree of computational resources' utilization. POWER8 is
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| 27 | # "massively multi-threaded chip" and difference between single- and
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| 28 | # maximum multi-process benchmark results tells that utilization is
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| 29 | # whooping 94%. For sha512-ppc.pl we get [not unimpressive] 84% and
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| 30 | # for sha1-ppc.pl - 73%. 100% means that multi-process result equals
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| 31 | # to single-process one, given that all threads end up on the same
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| 32 | # physical core.
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| 33 | #
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| 34 | ######################################################################
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| 35 | # Believed-to-be-accurate results in cycles per processed byte [on
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| 36 | # little-endian system]. Numbers in square brackets are for 64-bit
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| 37 | # build of sha512-ppc.pl, presented for reference.
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| 38 | #
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| 39 | # POWER8 POWER9
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| 40 | # SHA256 9.7 [15.8] 11.2 [12.5]
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| 41 | # SHA512 6.1 [10.3] 7.0 [7.9]
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| 42 |
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| 43 | # $output is the last argument if it looks like a file (it has an extension)
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| 44 | # $flavour is the first argument if it doesn't look like a file
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| 45 | $output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
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| 46 | $flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef;
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| 47 |
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| 48 | if ($flavour =~ /64/) {
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| 49 | $SIZE_T=8;
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| 50 | $LRSAVE=2*$SIZE_T;
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| 51 | $STU="stdu";
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| 52 | $POP="ld";
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| 53 | $PUSH="std";
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| 54 | } elsif ($flavour =~ /32/) {
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| 55 | $SIZE_T=4;
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| 56 | $LRSAVE=$SIZE_T;
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| 57 | $STU="stwu";
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| 58 | $POP="lwz";
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| 59 | $PUSH="stw";
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| 60 | } else { die "nonsense $flavour"; }
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| 61 |
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| 62 | $LENDIAN=($flavour=~/le/);
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| 63 |
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| 64 | $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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| 65 | ( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
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| 66 | ( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or
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| 67 | die "can't locate ppc-xlate.pl";
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| 68 |
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| 69 | open STDOUT,"| $^X $xlate $flavour \"$output\""
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| 70 | or die "can't call $xlate: $!";
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| 71 |
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| 72 | if ($output =~ /512/) {
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| 73 | $bits=512;
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| 74 | $SZ=8;
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| 75 | $sz="d";
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| 76 | $rounds=80;
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| 77 | } else {
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| 78 | $bits=256;
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| 79 | $SZ=4;
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| 80 | $sz="w";
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| 81 | $rounds=64;
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| 82 | }
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| 83 |
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| 84 | $func="sha${bits}_block_p8";
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| 85 | $LOCALS=8*$SIZE_T+8*16;
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| 86 | $FRAME=$LOCALS+9*16+6*$SIZE_T;
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| 87 |
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| 88 | $sp ="r1";
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| 89 | $toc="r2";
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| 90 | $ctx="r3";
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| 91 | $inp="r4";
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| 92 | $num="r5";
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| 93 | $Tbl="r6";
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| 94 | $idx="r7";
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| 95 | $lrsave="r8";
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| 96 | $offload="r11";
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| 97 | $vrsave="r12";
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| 98 | @I = ($x00,$x10,$x20,$x30,$x40,$x50,$x60,$x70) = (0,map("r$_",(10,26..31)));
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| 99 |
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| 100 | @V=($A,$B,$C,$D,$E,$F,$G,$H)=map("v$_",(0..7));
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| 101 | @X=map("v$_",(8..19,24..27));
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| 102 | ($Ki,$Func,$Sigma,$lemask)=map("v$_",(28..31));
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| 103 |
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| 104 | sub ROUND {
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| 105 | my ($i,$a,$b,$c,$d,$e,$f,$g,$h)=@_;
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| 106 | my $j=($i+1)%16;
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| 107 | my $k=($i+2)%8;
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| 108 |
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| 109 | $code.=<<___ if ($i<15 && ($i%(16/$SZ))==(16/$SZ-1));
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| 110 | lvx_u @X[$i+1],0,$inp ; load X[i] in advance
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| 111 | addi $inp,$inp,16
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| 112 | ___
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| 113 | $code.=<<___ if ($i<16 && ($i%(16/$SZ)));
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| 114 | vsldoi @X[$i],@X[$i-1],@X[$i-1],$SZ
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| 115 | ___
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| 116 | $code.=<<___ if ($LENDIAN && $i<16 && ($i%(16/$SZ))==0);
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| 117 | vperm @X[$i],@X[$i],@X[$i],$lemask
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| 118 | ___
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| 119 | $code.=<<___ if ($i>=15);
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| 120 | vshasigma${sz} $Sigma,@X[($j+1)%16],0,0
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| 121 | vaddu${sz}m @X[$j],@X[$j],$Sigma
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| 122 | vshasigma${sz} $Sigma,@X[($j+14)%16],0,15
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| 123 | vaddu${sz}m @X[$j],@X[$j],$Sigma
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| 124 | vaddu${sz}m @X[$j],@X[$j],@X[($j+9)%16]
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| 125 | ___
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| 126 | $code.=<<___;
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| 127 | vaddu${sz}m $h,$h,@X[$i%16] ; h+=X[i]
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| 128 | vsel $Func,$g,$f,$e ; Ch(e,f,g)
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| 129 | vaddu${sz}m $g,$g,$Ki ; future h+=K[i]
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| 130 | vaddu${sz}m $h,$h,$Func ; h+=Ch(e,f,g)
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| 131 | vshasigma${sz} $Sigma,$e,1,15 ; Sigma1(e)
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| 132 | vaddu${sz}m $h,$h,$Sigma ; h+=Sigma1(e)
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| 133 | vxor $Func,$a,$b
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| 134 | vsel $Func,$b,$c,$Func ; Maj(a,b,c)
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| 135 | vaddu${sz}m $d,$d,$h ; d+=h
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| 136 | vshasigma${sz} $Sigma,$a,1,0 ; Sigma0(a)
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| 137 | vaddu${sz}m $Sigma,$Sigma,$Func ; Sigma0(a)+Maj(a,b,c)
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| 138 | vaddu${sz}m $h,$h,$Sigma ; h+=Sigma0(a)+Maj(a,b,c)
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| 139 | lvx $Ki,@I[$k],$idx ; load next K[i]
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| 140 | ___
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| 141 | $code.=<<___ if ($k == 7);
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| 142 | addi $idx,$idx,0x80
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| 143 | ___
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| 144 | }
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| 145 |
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| 146 | $code=<<___;
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| 147 | .machine "any"
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| 148 | .text
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| 149 |
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| 150 | .globl $func
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| 151 | .align 6
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| 152 | $func:
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| 153 | $STU $sp,-$FRAME($sp)
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| 154 | mflr $lrsave
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| 155 | li r10,`$LOCALS+15`
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| 156 | li r11,`$LOCALS+31`
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| 157 | stvx v24,r10,$sp # ABI says so
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| 158 | addi r10,r10,32
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| 159 | mfspr $vrsave,256
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| 160 | stvx v25,r11,$sp
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| 161 | addi r11,r11,32
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| 162 | stvx v26,r10,$sp
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| 163 | addi r10,r10,32
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| 164 | stvx v27,r11,$sp
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| 165 | addi r11,r11,32
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| 166 | stvx v28,r10,$sp
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| 167 | addi r10,r10,32
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| 168 | stvx v29,r11,$sp
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| 169 | addi r11,r11,32
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| 170 | stvx v30,r10,$sp
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| 171 | stvx v31,r11,$sp
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| 172 | li r11,-4096+255 # 0xfffff0ff
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| 173 | stw $vrsave,`$FRAME-6*$SIZE_T-4`($sp) # save vrsave
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| 174 | li $x10,0x10
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| 175 | $PUSH r26,`$FRAME-6*$SIZE_T`($sp)
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| 176 | li $x20,0x20
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| 177 | $PUSH r27,`$FRAME-5*$SIZE_T`($sp)
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| 178 | li $x30,0x30
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| 179 | $PUSH r28,`$FRAME-4*$SIZE_T`($sp)
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| 180 | li $x40,0x40
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| 181 | $PUSH r29,`$FRAME-3*$SIZE_T`($sp)
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| 182 | li $x50,0x50
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| 183 | $PUSH r30,`$FRAME-2*$SIZE_T`($sp)
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| 184 | li $x60,0x60
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| 185 | $PUSH r31,`$FRAME-1*$SIZE_T`($sp)
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| 186 | li $x70,0x70
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| 187 | $PUSH $lrsave,`$FRAME+$LRSAVE`($sp)
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| 188 | mtspr 256,r11
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| 189 |
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| 190 | bl LPICmeup
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| 191 | addi $offload,$sp,`8*$SIZE_T+15`
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| 192 | ___
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| 193 | $code.=<<___ if ($LENDIAN);
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| 194 | li $idx,8
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| 195 | lvsl $lemask,0,$idx
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| 196 | vspltisb $Ki,0x0f
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| 197 | vxor $lemask,$lemask,$Ki
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| 198 | ___
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| 199 | $code.=<<___ if ($SZ==4);
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| 200 | lvx_4w $A,$x00,$ctx
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| 201 | lvx_4w $E,$x10,$ctx
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| 202 | vsldoi $B,$A,$A,4 # unpack
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| 203 | vsldoi $C,$A,$A,8
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| 204 | vsldoi $D,$A,$A,12
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| 205 | vsldoi $F,$E,$E,4
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| 206 | vsldoi $G,$E,$E,8
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| 207 | vsldoi $H,$E,$E,12
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| 208 | ___
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| 209 | $code.=<<___ if ($SZ==8);
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| 210 | lvx_u $A,$x00,$ctx
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| 211 | lvx_u $C,$x10,$ctx
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| 212 | lvx_u $E,$x20,$ctx
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| 213 | vsldoi $B,$A,$A,8 # unpack
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| 214 | lvx_u $G,$x30,$ctx
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| 215 | vsldoi $D,$C,$C,8
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| 216 | vsldoi $F,$E,$E,8
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| 217 | vsldoi $H,$G,$G,8
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| 218 | ___
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| 219 | $code.=<<___;
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| 220 | li r0,`($rounds-16)/16` # inner loop counter
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| 221 | b Loop
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| 222 | .align 5
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| 223 | Loop:
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| 224 | lvx $Ki,$x00,$Tbl
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| 225 | lvx_u @X[0],0,$inp
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| 226 | addi $inp,$inp,16
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| 227 | mr $idx,$Tbl # copy $Tbl
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| 228 | stvx $A,$x00,$offload # offload $A-$H
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| 229 | stvx $B,$x10,$offload
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| 230 | stvx $C,$x20,$offload
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| 231 | stvx $D,$x30,$offload
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| 232 | stvx $E,$x40,$offload
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| 233 | stvx $F,$x50,$offload
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| 234 | stvx $G,$x60,$offload
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| 235 | stvx $H,$x70,$offload
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| 236 | vaddu${sz}m $H,$H,$Ki # h+K[i]
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| 237 | lvx $Ki,$x10,$Tbl
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| 238 | ___
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| 239 | for ($i=0;$i<16;$i++) { &ROUND($i,@V); unshift(@V,pop(@V)); }
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| 240 | $code.=<<___;
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| 241 | mtctr r0
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| 242 | b L16_xx
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| 243 | .align 5
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| 244 | L16_xx:
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| 245 | ___
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| 246 | for (;$i<32;$i++) { &ROUND($i,@V); unshift(@V,pop(@V)); }
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| 247 | $code.=<<___;
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| 248 | bdnz L16_xx
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| 249 |
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| 250 | lvx @X[2],$x00,$offload
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| 251 | subic. $num,$num,1
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| 252 | lvx @X[3],$x10,$offload
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| 253 | vaddu${sz}m $A,$A,@X[2]
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| 254 | lvx @X[4],$x20,$offload
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| 255 | vaddu${sz}m $B,$B,@X[3]
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| 256 | lvx @X[5],$x30,$offload
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| 257 | vaddu${sz}m $C,$C,@X[4]
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| 258 | lvx @X[6],$x40,$offload
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| 259 | vaddu${sz}m $D,$D,@X[5]
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| 260 | lvx @X[7],$x50,$offload
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| 261 | vaddu${sz}m $E,$E,@X[6]
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| 262 | lvx @X[8],$x60,$offload
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| 263 | vaddu${sz}m $F,$F,@X[7]
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| 264 | lvx @X[9],$x70,$offload
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| 265 | vaddu${sz}m $G,$G,@X[8]
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| 266 | vaddu${sz}m $H,$H,@X[9]
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| 267 | bne Loop
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| 268 | ___
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| 269 | $code.=<<___ if ($SZ==4);
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| 270 | lvx @X[0],$x20,$idx
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| 271 | vperm $A,$A,$B,$Ki # pack the answer
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| 272 | lvx @X[1],$x30,$idx
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| 273 | vperm $E,$E,$F,$Ki
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| 274 | vperm $A,$A,$C,@X[0]
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| 275 | vperm $E,$E,$G,@X[0]
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| 276 | vperm $A,$A,$D,@X[1]
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| 277 | vperm $E,$E,$H,@X[1]
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| 278 | stvx_4w $A,$x00,$ctx
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| 279 | stvx_4w $E,$x10,$ctx
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| 280 | ___
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| 281 | $code.=<<___ if ($SZ==8);
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| 282 | vperm $A,$A,$B,$Ki # pack the answer
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| 283 | vperm $C,$C,$D,$Ki
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| 284 | vperm $E,$E,$F,$Ki
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| 285 | vperm $G,$G,$H,$Ki
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| 286 | stvx_u $A,$x00,$ctx
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| 287 | stvx_u $C,$x10,$ctx
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| 288 | stvx_u $E,$x20,$ctx
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| 289 | stvx_u $G,$x30,$ctx
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| 290 | ___
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| 291 | $code.=<<___;
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| 292 | addi $offload,$sp,`$LOCALS+15`
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| 293 | mtlr $lrsave
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| 294 | mtspr 256,$vrsave
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| 295 | lvx v24,$x00,$offload # ABI says so
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| 296 | lvx v25,$x10,$offload
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| 297 | lvx v26,$x20,$offload
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| 298 | lvx v27,$x30,$offload
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| 299 | lvx v28,$x40,$offload
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| 300 | lvx v29,$x50,$offload
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| 301 | lvx v30,$x60,$offload
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| 302 | lvx v31,$x70,$offload
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| 303 | $POP r26,`$FRAME-6*$SIZE_T`($sp)
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| 304 | $POP r27,`$FRAME-5*$SIZE_T`($sp)
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| 305 | $POP r28,`$FRAME-4*$SIZE_T`($sp)
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| 306 | $POP r29,`$FRAME-3*$SIZE_T`($sp)
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| 307 | $POP r30,`$FRAME-2*$SIZE_T`($sp)
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| 308 | $POP r31,`$FRAME-1*$SIZE_T`($sp)
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| 309 | addi $sp,$sp,$FRAME
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| 310 | blr
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| 311 | .long 0
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| 312 | .byte 0,12,4,1,0x80,6,3,0
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| 313 | .long 0
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| 314 | .size $func,.-$func
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| 315 | ___
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| 316 |
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| 317 | # Ugly hack here, because PPC assembler syntax seem to vary too
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| 318 | # much from platforms to platform...
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| 319 | $code.=<<___;
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| 320 | .align 6
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| 321 | LPICmeup:
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| 322 | mflr r0
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| 323 | bcl 20,31,\$+4
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| 324 | mflr $Tbl ; vvvvvv "distance" between . and 1st data entry
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| 325 | addi $Tbl,$Tbl,`64-8`
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| 326 | mtlr r0
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| 327 | blr
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| 328 | .long 0
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| 329 | .byte 0,12,0x14,0,0,0,0,0
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| 330 | .space `64-9*4`
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| 331 | ___
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| 332 |
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| 333 | if ($SZ==8) {
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| 334 | local *table = sub {
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| 335 | foreach(@_) { $code.=".quad $_,$_\n"; }
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| 336 | };
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| 337 | table(
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| 338 | "0x428a2f98d728ae22","0x7137449123ef65cd",
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| 339 | "0xb5c0fbcfec4d3b2f","0xe9b5dba58189dbbc",
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| 340 | "0x3956c25bf348b538","0x59f111f1b605d019",
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| 341 | "0x923f82a4af194f9b","0xab1c5ed5da6d8118",
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| 342 | "0xd807aa98a3030242","0x12835b0145706fbe",
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| 343 | "0x243185be4ee4b28c","0x550c7dc3d5ffb4e2",
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| 344 | "0x72be5d74f27b896f","0x80deb1fe3b1696b1",
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| 345 | "0x9bdc06a725c71235","0xc19bf174cf692694",
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| 346 | "0xe49b69c19ef14ad2","0xefbe4786384f25e3",
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| 347 | "0x0fc19dc68b8cd5b5","0x240ca1cc77ac9c65",
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| 348 | "0x2de92c6f592b0275","0x4a7484aa6ea6e483",
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| 349 | "0x5cb0a9dcbd41fbd4","0x76f988da831153b5",
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| 350 | "0x983e5152ee66dfab","0xa831c66d2db43210",
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| 351 | "0xb00327c898fb213f","0xbf597fc7beef0ee4",
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| 352 | "0xc6e00bf33da88fc2","0xd5a79147930aa725",
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| 353 | "0x06ca6351e003826f","0x142929670a0e6e70",
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| 354 | "0x27b70a8546d22ffc","0x2e1b21385c26c926",
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| 355 | "0x4d2c6dfc5ac42aed","0x53380d139d95b3df",
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| 356 | "0x650a73548baf63de","0x766a0abb3c77b2a8",
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| 357 | "0x81c2c92e47edaee6","0x92722c851482353b",
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| 358 | "0xa2bfe8a14cf10364","0xa81a664bbc423001",
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| 359 | "0xc24b8b70d0f89791","0xc76c51a30654be30",
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| 360 | "0xd192e819d6ef5218","0xd69906245565a910",
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| 361 | "0xf40e35855771202a","0x106aa07032bbd1b8",
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| 362 | "0x19a4c116b8d2d0c8","0x1e376c085141ab53",
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| 363 | "0x2748774cdf8eeb99","0x34b0bcb5e19b48a8",
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| 364 | "0x391c0cb3c5c95a63","0x4ed8aa4ae3418acb",
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| 365 | "0x5b9cca4f7763e373","0x682e6ff3d6b2b8a3",
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| 366 | "0x748f82ee5defb2fc","0x78a5636f43172f60",
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|---|
| 367 | "0x84c87814a1f0ab72","0x8cc702081a6439ec",
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|---|
| 368 | "0x90befffa23631e28","0xa4506cebde82bde9",
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|---|
| 369 | "0xbef9a3f7b2c67915","0xc67178f2e372532b",
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|---|
| 370 | "0xca273eceea26619c","0xd186b8c721c0c207",
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|---|
| 371 | "0xeada7dd6cde0eb1e","0xf57d4f7fee6ed178",
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|---|
| 372 | "0x06f067aa72176fba","0x0a637dc5a2c898a6",
|
|---|
| 373 | "0x113f9804bef90dae","0x1b710b35131c471b",
|
|---|
| 374 | "0x28db77f523047d84","0x32caab7b40c72493",
|
|---|
| 375 | "0x3c9ebe0a15c9bebc","0x431d67c49c100d4c",
|
|---|
| 376 | "0x4cc5d4becb3e42b6","0x597f299cfc657e2a",
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|---|
| 377 | "0x5fcb6fab3ad6faec","0x6c44198c4a475817","0");
|
|---|
| 378 | $code.=<<___ if (!$LENDIAN);
|
|---|
| 379 | .quad 0x0001020304050607,0x1011121314151617
|
|---|
| 380 | ___
|
|---|
| 381 | $code.=<<___ if ($LENDIAN); # quad-swapped
|
|---|
| 382 | .quad 0x1011121314151617,0x0001020304050607
|
|---|
| 383 | ___
|
|---|
| 384 | } else {
|
|---|
| 385 | local *table = sub {
|
|---|
| 386 | foreach(@_) { $code.=".long $_,$_,$_,$_\n"; }
|
|---|
| 387 | };
|
|---|
| 388 | table(
|
|---|
| 389 | "0x428a2f98","0x71374491","0xb5c0fbcf","0xe9b5dba5",
|
|---|
| 390 | "0x3956c25b","0x59f111f1","0x923f82a4","0xab1c5ed5",
|
|---|
| 391 | "0xd807aa98","0x12835b01","0x243185be","0x550c7dc3",
|
|---|
| 392 | "0x72be5d74","0x80deb1fe","0x9bdc06a7","0xc19bf174",
|
|---|
| 393 | "0xe49b69c1","0xefbe4786","0x0fc19dc6","0x240ca1cc",
|
|---|
| 394 | "0x2de92c6f","0x4a7484aa","0x5cb0a9dc","0x76f988da",
|
|---|
| 395 | "0x983e5152","0xa831c66d","0xb00327c8","0xbf597fc7",
|
|---|
| 396 | "0xc6e00bf3","0xd5a79147","0x06ca6351","0x14292967",
|
|---|
| 397 | "0x27b70a85","0x2e1b2138","0x4d2c6dfc","0x53380d13",
|
|---|
| 398 | "0x650a7354","0x766a0abb","0x81c2c92e","0x92722c85",
|
|---|
| 399 | "0xa2bfe8a1","0xa81a664b","0xc24b8b70","0xc76c51a3",
|
|---|
| 400 | "0xd192e819","0xd6990624","0xf40e3585","0x106aa070",
|
|---|
| 401 | "0x19a4c116","0x1e376c08","0x2748774c","0x34b0bcb5",
|
|---|
| 402 | "0x391c0cb3","0x4ed8aa4a","0x5b9cca4f","0x682e6ff3",
|
|---|
| 403 | "0x748f82ee","0x78a5636f","0x84c87814","0x8cc70208",
|
|---|
| 404 | "0x90befffa","0xa4506ceb","0xbef9a3f7","0xc67178f2","0");
|
|---|
| 405 | $code.=<<___ if (!$LENDIAN);
|
|---|
| 406 | .long 0x00010203,0x10111213,0x10111213,0x10111213
|
|---|
| 407 | .long 0x00010203,0x04050607,0x10111213,0x10111213
|
|---|
| 408 | .long 0x00010203,0x04050607,0x08090a0b,0x10111213
|
|---|
| 409 | ___
|
|---|
| 410 | $code.=<<___ if ($LENDIAN); # word-swapped
|
|---|
| 411 | .long 0x10111213,0x10111213,0x10111213,0x00010203
|
|---|
| 412 | .long 0x10111213,0x10111213,0x04050607,0x00010203
|
|---|
| 413 | .long 0x10111213,0x08090a0b,0x04050607,0x00010203
|
|---|
| 414 | ___
|
|---|
| 415 | }
|
|---|
| 416 | $code.=<<___;
|
|---|
| 417 | .asciz "SHA${bits} for PowerISA 2.07, CRYPTOGAMS by <appro\@openssl.org>"
|
|---|
| 418 | .align 2
|
|---|
| 419 | ___
|
|---|
| 420 |
|
|---|
| 421 | $code =~ s/\`([^\`]*)\`/eval $1/gem;
|
|---|
| 422 | print $code;
|
|---|
| 423 | close STDOUT or die "error closing STDOUT: $!";
|
|---|
