mirror of
https://github.com/openssl/openssl.git
synced 2024-11-27 05:21:51 +08:00
314 lines
7.5 KiB
Raku
314 lines
7.5 KiB
Raku
#!/usr/bin/env perl
|
|
#
|
|
# ====================================================================
|
|
# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
|
|
# project. The module is, however, dual licensed under OpenSSL and
|
|
# CRYPTOGAMS licenses depending on where you obtain it. For further
|
|
# details see http://www.openssl.org/~appro/cryptogams/.
|
|
# ====================================================================
|
|
#
|
|
# May 2011
|
|
#
|
|
# The module implements bn_GF2m_mul_2x2 polynomial multiplication used
|
|
# in bn_gf2m.c. It's kind of low-hanging mechanical port from C for
|
|
# the time being... Except that it has three code paths: pure integer
|
|
# code suitable for any x86 CPU, MMX code suitable for PIII and later
|
|
# and PCLMULQDQ suitable for Westmere and later. Improvement varies
|
|
# from one benchmark and µ-arch to another. Below are interval values
|
|
# for 163- and 571-bit ECDH benchmarks relative to compiler-generated
|
|
# code:
|
|
#
|
|
# PIII 16%-30%
|
|
# P4 12%-12%
|
|
# Opteron 18%-40%
|
|
# Core2 19%-44%
|
|
# Atom 38%-64%
|
|
# Westmere 53%-121%(PCLMULQDQ)/20%-32%(MMX)
|
|
# Sandy Bridge 72%-127%(PCLMULQDQ)/27%-23%(MMX)
|
|
#
|
|
# Note that above improvement coefficients are not coefficients for
|
|
# bn_GF2m_mul_2x2 itself. For example 120% ECDH improvement is result
|
|
# of bn_GF2m_mul_2x2 being >4x faster. As it gets faster, benchmark
|
|
# is more and more dominated by other subroutines, most notably by
|
|
# BN_GF2m_mod[_mul]_arr...
|
|
|
|
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
|
|
push(@INC,"${dir}","${dir}../../perlasm");
|
|
require "x86asm.pl";
|
|
|
|
&asm_init($ARGV[0],$0,$x86only = $ARGV[$#ARGV] eq "386");
|
|
|
|
$sse2=0;
|
|
for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); }
|
|
|
|
&external_label("OPENSSL_ia32cap_P") if ($sse2);
|
|
|
|
$a="eax";
|
|
$b="ebx";
|
|
($a1,$a2,$a4)=("ecx","edx","ebp");
|
|
|
|
$R="mm0";
|
|
@T=("mm1","mm2");
|
|
($A,$B,$B30,$B31)=("mm2","mm3","mm4","mm5");
|
|
@i=("esi","edi");
|
|
|
|
if (!$x86only) {
|
|
&function_begin_B("_mul_1x1_mmx");
|
|
&sub ("esp",32+4);
|
|
&mov ($a1,$a);
|
|
&lea ($a2,&DWP(0,$a,$a));
|
|
&and ($a1,0x3fffffff);
|
|
&lea ($a4,&DWP(0,$a2,$a2));
|
|
&mov (&DWP(0*4,"esp"),0);
|
|
&and ($a2,0x7fffffff);
|
|
&movd ($A,$a);
|
|
&movd ($B,$b);
|
|
&mov (&DWP(1*4,"esp"),$a1); # a1
|
|
&xor ($a1,$a2); # a1^a2
|
|
&pxor ($B31,$B31);
|
|
&pxor ($B30,$B30);
|
|
&mov (&DWP(2*4,"esp"),$a2); # a2
|
|
&xor ($a2,$a4); # a2^a4
|
|
&mov (&DWP(3*4,"esp"),$a1); # a1^a2
|
|
&pcmpgtd($B31,$A); # broadcast 31st bit
|
|
&paddd ($A,$A); # $A<<=1
|
|
&xor ($a1,$a2); # a1^a4=a1^a2^a2^a4
|
|
&mov (&DWP(4*4,"esp"),$a4); # a4
|
|
&xor ($a4,$a2); # a2=a4^a2^a4
|
|
&pand ($B31,$B);
|
|
&pcmpgtd($B30,$A); # broadcast 30th bit
|
|
&mov (&DWP(5*4,"esp"),$a1); # a1^a4
|
|
&xor ($a4,$a1); # a1^a2^a4
|
|
&psllq ($B31,31);
|
|
&pand ($B30,$B);
|
|
&mov (&DWP(6*4,"esp"),$a2); # a2^a4
|
|
&mov (@i[0],0x7);
|
|
&mov (&DWP(7*4,"esp"),$a4); # a1^a2^a4
|
|
&mov ($a4,@i[0]);
|
|
&and (@i[0],$b);
|
|
&shr ($b,3);
|
|
&mov (@i[1],$a4);
|
|
&psllq ($B30,30);
|
|
&and (@i[1],$b);
|
|
&shr ($b,3);
|
|
&movd ($R,&DWP(0,"esp",@i[0],4));
|
|
&mov (@i[0],$a4);
|
|
&and (@i[0],$b);
|
|
&shr ($b,3);
|
|
for($n=1;$n<9;$n++) {
|
|
&movd (@T[1],&DWP(0,"esp",@i[1],4));
|
|
&mov (@i[1],$a4);
|
|
&psllq (@T[1],3*$n);
|
|
&and (@i[1],$b);
|
|
&shr ($b,3);
|
|
&pxor ($R,@T[1]);
|
|
|
|
push(@i,shift(@i)); push(@T,shift(@T));
|
|
}
|
|
&movd (@T[1],&DWP(0,"esp",@i[1],4));
|
|
&pxor ($R,$B30);
|
|
&psllq (@T[1],3*$n++);
|
|
&pxor ($R,@T[1]);
|
|
|
|
&movd (@T[0],&DWP(0,"esp",@i[0],4));
|
|
&pxor ($R,$B31);
|
|
&psllq (@T[0],3*$n);
|
|
&add ("esp",32+4);
|
|
&pxor ($R,@T[0]);
|
|
&ret ();
|
|
&function_end_B("_mul_1x1_mmx");
|
|
}
|
|
|
|
($lo,$hi)=("eax","edx");
|
|
@T=("ecx","ebp");
|
|
|
|
&function_begin_B("_mul_1x1_ialu");
|
|
&sub ("esp",32+4);
|
|
&mov ($a1,$a);
|
|
&lea ($a2,&DWP(0,$a,$a));
|
|
&lea ($a4,&DWP(0,"",$a,4));
|
|
&and ($a1,0x3fffffff);
|
|
&lea (@i[1],&DWP(0,$lo,$lo));
|
|
&sar ($lo,31); # broadcast 31st bit
|
|
&mov (&DWP(0*4,"esp"),0);
|
|
&and ($a2,0x7fffffff);
|
|
&mov (&DWP(1*4,"esp"),$a1); # a1
|
|
&xor ($a1,$a2); # a1^a2
|
|
&mov (&DWP(2*4,"esp"),$a2); # a2
|
|
&xor ($a2,$a4); # a2^a4
|
|
&mov (&DWP(3*4,"esp"),$a1); # a1^a2
|
|
&xor ($a1,$a2); # a1^a4=a1^a2^a2^a4
|
|
&mov (&DWP(4*4,"esp"),$a4); # a4
|
|
&xor ($a4,$a2); # a2=a4^a2^a4
|
|
&mov (&DWP(5*4,"esp"),$a1); # a1^a4
|
|
&xor ($a4,$a1); # a1^a2^a4
|
|
&sar (@i[1],31); # broardcast 30th bit
|
|
&and ($lo,$b);
|
|
&mov (&DWP(6*4,"esp"),$a2); # a2^a4
|
|
&and (@i[1],$b);
|
|
&mov (&DWP(7*4,"esp"),$a4); # a1^a2^a4
|
|
&mov ($hi,$lo);
|
|
&shl ($lo,31);
|
|
&mov (@T[0],@i[1]);
|
|
&shr ($hi,1);
|
|
|
|
&mov (@i[0],0x7);
|
|
&shl (@i[1],30);
|
|
&and (@i[0],$b);
|
|
&shr (@T[0],2);
|
|
&xor ($lo,@i[1]);
|
|
|
|
&shr ($b,3);
|
|
&mov (@i[1],0x7); # 5-byte instruction!?
|
|
&and (@i[1],$b);
|
|
&shr ($b,3);
|
|
&xor ($hi,@T[0]);
|
|
&xor ($lo,&DWP(0,"esp",@i[0],4));
|
|
&mov (@i[0],0x7);
|
|
&and (@i[0],$b);
|
|
&shr ($b,3);
|
|
for($n=1;$n<9;$n++) {
|
|
&mov (@T[1],&DWP(0,"esp",@i[1],4));
|
|
&mov (@i[1],0x7);
|
|
&mov (@T[0],@T[1]);
|
|
&shl (@T[1],3*$n);
|
|
&and (@i[1],$b);
|
|
&shr (@T[0],32-3*$n);
|
|
&xor ($lo,@T[1]);
|
|
&shr ($b,3);
|
|
&xor ($hi,@T[0]);
|
|
|
|
push(@i,shift(@i)); push(@T,shift(@T));
|
|
}
|
|
&mov (@T[1],&DWP(0,"esp",@i[1],4));
|
|
&mov (@T[0],@T[1]);
|
|
&shl (@T[1],3*$n);
|
|
&mov (@i[1],&DWP(0,"esp",@i[0],4));
|
|
&shr (@T[0],32-3*$n); $n++;
|
|
&mov (@i[0],@i[1]);
|
|
&xor ($lo,@T[1]);
|
|
&shl (@i[1],3*$n);
|
|
&xor ($hi,@T[0]);
|
|
&shr (@i[0],32-3*$n);
|
|
&xor ($lo,@i[1]);
|
|
&xor ($hi,@i[0]);
|
|
|
|
&add ("esp",32+4);
|
|
&ret ();
|
|
&function_end_B("_mul_1x1_ialu");
|
|
|
|
# void bn_GF2m_mul_2x2(BN_ULONG *r, BN_ULONG a1, BN_ULONG a0, BN_ULONG b1, BN_ULONG b0);
|
|
&function_begin_B("bn_GF2m_mul_2x2");
|
|
if (!$x86only) {
|
|
&picmeup("edx","OPENSSL_ia32cap_P");
|
|
&mov ("eax",&DWP(0,"edx"));
|
|
&mov ("edx",&DWP(4,"edx"));
|
|
&test ("eax",1<<23); # check MMX bit
|
|
&jz (&label("ialu"));
|
|
if ($sse2) {
|
|
&test ("eax",1<<24); # check FXSR bit
|
|
&jz (&label("mmx"));
|
|
&test ("edx",1<<1); # check PCLMULQDQ bit
|
|
&jz (&label("mmx"));
|
|
|
|
&movups ("xmm0",&QWP(8,"esp"));
|
|
&shufps ("xmm0","xmm0",0b10110001);
|
|
&pclmulqdq ("xmm0","xmm0",1);
|
|
&mov ("eax",&DWP(4,"esp"));
|
|
&movups (&QWP(0,"eax"),"xmm0");
|
|
&ret ();
|
|
|
|
&set_label("mmx",16);
|
|
}
|
|
&push ("ebp");
|
|
&push ("ebx");
|
|
&push ("esi");
|
|
&push ("edi");
|
|
&mov ($a,&wparam(1));
|
|
&mov ($b,&wparam(3));
|
|
&call ("_mul_1x1_mmx"); # a1·b1
|
|
&movq ("mm7",$R);
|
|
|
|
&mov ($a,&wparam(2));
|
|
&mov ($b,&wparam(4));
|
|
&call ("_mul_1x1_mmx"); # a0·b0
|
|
&movq ("mm6",$R);
|
|
|
|
&mov ($a,&wparam(1));
|
|
&mov ($b,&wparam(3));
|
|
&xor ($a,&wparam(2));
|
|
&xor ($b,&wparam(4));
|
|
&call ("_mul_1x1_mmx"); # (a0+a1)·(b0+b1)
|
|
&pxor ($R,"mm7");
|
|
&mov ($a,&wparam(0));
|
|
&pxor ($R,"mm6"); # (a0+a1)·(b0+b1)-a1·b1-a0·b0
|
|
|
|
&movq ($A,$R);
|
|
&psllq ($R,32);
|
|
&pop ("edi");
|
|
&psrlq ($A,32);
|
|
&pop ("esi");
|
|
&pxor ($R,"mm6");
|
|
&pop ("ebx");
|
|
&pxor ($A,"mm7");
|
|
&movq (&QWP(0,$a),$R);
|
|
&pop ("ebp");
|
|
&movq (&QWP(8,$a),$A);
|
|
&emms ();
|
|
&ret ();
|
|
&set_label("ialu",16);
|
|
}
|
|
&push ("ebp");
|
|
&push ("ebx");
|
|
&push ("esi");
|
|
&push ("edi");
|
|
&stack_push(4+1);
|
|
|
|
&mov ($a,&wparam(1));
|
|
&mov ($b,&wparam(3));
|
|
&call ("_mul_1x1_ialu"); # a1·b1
|
|
&mov (&DWP(8,"esp"),$lo);
|
|
&mov (&DWP(12,"esp"),$hi);
|
|
|
|
&mov ($a,&wparam(2));
|
|
&mov ($b,&wparam(4));
|
|
&call ("_mul_1x1_ialu"); # a0·b0
|
|
&mov (&DWP(0,"esp"),$lo);
|
|
&mov (&DWP(4,"esp"),$hi);
|
|
|
|
&mov ($a,&wparam(1));
|
|
&mov ($b,&wparam(3));
|
|
&xor ($a,&wparam(2));
|
|
&xor ($b,&wparam(4));
|
|
&call ("_mul_1x1_ialu"); # (a0+a1)·(b0+b1)
|
|
|
|
&mov ("ebp",&wparam(0));
|
|
@r=("ebx","ecx","edi","esi");
|
|
&mov (@r[0],&DWP(0,"esp"));
|
|
&mov (@r[1],&DWP(4,"esp"));
|
|
&mov (@r[2],&DWP(8,"esp"));
|
|
&mov (@r[3],&DWP(12,"esp"));
|
|
|
|
&xor ($lo,$hi);
|
|
&xor ($hi,@r[1]);
|
|
&xor ($lo,@r[0]);
|
|
&mov (&DWP(0,"ebp"),@r[0]);
|
|
&xor ($hi,@r[2]);
|
|
&mov (&DWP(12,"ebp"),@r[3]);
|
|
&xor ($lo,@r[3]);
|
|
&stack_pop(4+1);
|
|
&xor ($hi,@r[3]);
|
|
&pop ("edi");
|
|
&xor ($lo,$hi);
|
|
&pop ("esi");
|
|
&mov (&DWP(8,"ebp"),$hi);
|
|
&pop ("ebx");
|
|
&mov (&DWP(4,"ebp"),$lo);
|
|
&pop ("ebp");
|
|
&ret ();
|
|
&function_end_B("bn_GF2m_mul_2x2");
|
|
|
|
&asciz ("GF(2^m) Multiplication for x86, CRYPTOGAMS by <appro\@openssl.org>");
|
|
|
|
&asm_finish();
|