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1aa89a7a3a
They now generally conform to the following argument sequence:
script.pl "$(PERLASM_SCHEME)" [ C preprocessor arguments ... ] \
$(PROCESSOR) <output file>
However, in the spirit of being able to use these scripts manually,
they also allow for no argument, or for only the flavour, or for only
the output file. This is done by only using the last argument as
output file if it's a file (it has an extension), and only using the
first argument as flavour if it isn't a file (it doesn't have an
extension).
While we're at it, we make all $xlate calls the same, i.e. the $output
argument is always quoted, and we always die on error when trying to
start $xlate.
There's a perl lesson in this, regarding operator priority...
This will always succeed, even when it fails:
open FOO, "something" || die "ERR: $!";
The reason is that '||' has higher priority than list operators (a
function is essentially a list operator and gobbles up everything
following it that isn't lower priority), and since a non-empty string
is always true, so that ends up being exactly the same as:
open FOO, "something";
This, however, will fail if "something" can't be opened:
open FOO, "something" or die "ERR: $!";
The reason is that 'or' has lower priority that list operators,
i.e. it's performed after the 'open' call.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9884)
200 lines
4.7 KiB
Raku
200 lines
4.7 KiB
Raku
#! /usr/bin/env perl
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# Copyright 2012-2016 The OpenSSL Project Authors. All Rights Reserved.
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#
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# Licensed under the Apache License 2.0 (the "License"). You may not use
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# this file except in compliance with the License. You can obtain a copy
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# in the file LICENSE in the source distribution or at
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# https://www.openssl.org/source/license.html
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#
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# ====================================================================
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# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
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# project. The module is, however, dual licensed under OpenSSL and
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# CRYPTOGAMS licenses depending on where you obtain it. For further
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# details see http://www.openssl.org/~appro/cryptogams/.
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# ====================================================================
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#
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# October 2012
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#
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# The module implements bn_GF2m_mul_2x2 polynomial multiplication used
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# in bn_gf2m.c. It's kind of low-hanging mechanical port from C for
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# the time being... Except that it has two code paths: one suitable
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# for all SPARCv9 processors and one for VIS3-capable ones. Former
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# delivers ~25-45% more, more for longer keys, heaviest DH and DSA
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# verify operations on venerable UltraSPARC II. On T4 VIS3 code is
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# ~100-230% faster than gcc-generated code and ~35-90% faster than
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# the pure SPARCv9 code path.
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$output = pop and open STDOUT,">$output";
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$locals=16*8;
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$tab="%l0";
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@T=("%g2","%g3");
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@i=("%g4","%g5");
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($a1,$a2,$a4,$a8,$a12,$a48)=map("%o$_",(0..5));
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($lo,$hi,$b)=("%g1",$a8,"%o7"); $a=$lo;
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$code.=<<___;
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#include <sparc_arch.h>
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#ifdef __arch64__
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.register %g2,#scratch
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.register %g3,#scratch
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#endif
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#ifdef __PIC__
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SPARC_PIC_THUNK(%g1)
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#endif
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.globl bn_GF2m_mul_2x2
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.align 16
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bn_GF2m_mul_2x2:
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SPARC_LOAD_ADDRESS_LEAF(OPENSSL_sparcv9cap_P,%g1,%g5)
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ld [%g1+0],%g1 ! OPENSSL_sparcv9cap_P[0]
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andcc %g1, SPARCV9_VIS3, %g0
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bz,pn %icc,.Lsoftware
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nop
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sllx %o1, 32, %o1
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sllx %o3, 32, %o3
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or %o2, %o1, %o1
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or %o4, %o3, %o3
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.word 0x95b262ab ! xmulx %o1, %o3, %o2
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.word 0x99b262cb ! xmulxhi %o1, %o3, %o4
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srlx %o2, 32, %o1 ! 13 cycles later
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st %o2, [%o0+0]
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st %o1, [%o0+4]
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srlx %o4, 32, %o3
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st %o4, [%o0+8]
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retl
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st %o3, [%o0+12]
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.align 16
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.Lsoftware:
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save %sp,-STACK_FRAME-$locals,%sp
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sllx %i1,32,$a
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mov -1,$a12
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sllx %i3,32,$b
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or %i2,$a,$a
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srlx $a12,1,$a48 ! 0x7fff...
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or %i4,$b,$b
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srlx $a12,2,$a12 ! 0x3fff...
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add %sp,STACK_BIAS+STACK_FRAME,$tab
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sllx $a,2,$a4
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mov $a,$a1
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sllx $a,1,$a2
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srax $a4,63,@i[1] ! broadcast 61st bit
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and $a48,$a4,$a4 ! (a<<2)&0x7fff...
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srlx $a48,2,$a48
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srax $a2,63,@i[0] ! broadcast 62nd bit
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and $a12,$a2,$a2 ! (a<<1)&0x3fff...
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srax $a1,63,$lo ! broadcast 63rd bit
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and $a48,$a1,$a1 ! (a<<0)&0x1fff...
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sllx $a1,3,$a8
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and $b,$lo,$lo
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and $b,@i[0],@i[0]
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and $b,@i[1],@i[1]
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stx %g0,[$tab+0*8] ! tab[0]=0
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xor $a1,$a2,$a12
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stx $a1,[$tab+1*8] ! tab[1]=a1
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stx $a2,[$tab+2*8] ! tab[2]=a2
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xor $a4,$a8,$a48
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stx $a12,[$tab+3*8] ! tab[3]=a1^a2
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xor $a4,$a1,$a1
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stx $a4,[$tab+4*8] ! tab[4]=a4
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xor $a4,$a2,$a2
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stx $a1,[$tab+5*8] ! tab[5]=a1^a4
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xor $a4,$a12,$a12
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stx $a2,[$tab+6*8] ! tab[6]=a2^a4
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xor $a48,$a1,$a1
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stx $a12,[$tab+7*8] ! tab[7]=a1^a2^a4
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xor $a48,$a2,$a2
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stx $a8,[$tab+8*8] ! tab[8]=a8
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xor $a48,$a12,$a12
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stx $a1,[$tab+9*8] ! tab[9]=a1^a8
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xor $a4,$a1,$a1
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stx $a2,[$tab+10*8] ! tab[10]=a2^a8
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xor $a4,$a2,$a2
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stx $a12,[$tab+11*8] ! tab[11]=a1^a2^a8
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xor $a4,$a12,$a12
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stx $a48,[$tab+12*8] ! tab[12]=a4^a8
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srlx $lo,1,$hi
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stx $a1,[$tab+13*8] ! tab[13]=a1^a4^a8
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sllx $lo,63,$lo
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stx $a2,[$tab+14*8] ! tab[14]=a2^a4^a8
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srlx @i[0],2,@T[0]
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stx $a12,[$tab+15*8] ! tab[15]=a1^a2^a4^a8
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sllx @i[0],62,$a1
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sllx $b,3,@i[0]
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srlx @i[1],3,@T[1]
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and @i[0],`0xf<<3`,@i[0]
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sllx @i[1],61,$a2
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ldx [$tab+@i[0]],@i[0]
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srlx $b,4-3,@i[1]
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xor @T[0],$hi,$hi
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and @i[1],`0xf<<3`,@i[1]
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xor $a1,$lo,$lo
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ldx [$tab+@i[1]],@i[1]
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xor @T[1],$hi,$hi
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xor @i[0],$lo,$lo
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srlx $b,8-3,@i[0]
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xor $a2,$lo,$lo
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and @i[0],`0xf<<3`,@i[0]
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___
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for($n=1;$n<14;$n++) {
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$code.=<<___;
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sllx @i[1],`$n*4`,@T[0]
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ldx [$tab+@i[0]],@i[0]
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srlx @i[1],`64-$n*4`,@T[1]
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xor @T[0],$lo,$lo
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srlx $b,`($n+2)*4`-3,@i[1]
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xor @T[1],$hi,$hi
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and @i[1],`0xf<<3`,@i[1]
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___
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push(@i,shift(@i)); push(@T,shift(@T));
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}
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$code.=<<___;
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sllx @i[1],`$n*4`,@T[0]
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ldx [$tab+@i[0]],@i[0]
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srlx @i[1],`64-$n*4`,@T[1]
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xor @T[0],$lo,$lo
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sllx @i[0],`($n+1)*4`,@T[0]
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xor @T[1],$hi,$hi
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srlx @i[0],`64-($n+1)*4`,@T[1]
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xor @T[0],$lo,$lo
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xor @T[1],$hi,$hi
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srlx $lo,32,%i1
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st $lo,[%i0+0]
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st %i1,[%i0+4]
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srlx $hi,32,%i2
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st $hi,[%i0+8]
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st %i2,[%i0+12]
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ret
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restore
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.type bn_GF2m_mul_2x2,#function
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.size bn_GF2m_mul_2x2,.-bn_GF2m_mul_2x2
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.asciz "GF(2^m) Multiplication for SPARCv9, CRYPTOGAMS by <appro\@openssl.org>"
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.align 4
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___
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$code =~ s/\`([^\`]*)\`/eval($1)/gem;
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print $code;
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close STDOUT;
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