crypto/sha/asm/sha256-586.pl - platform/external/openssl - Git at Google

 #!/usr/bin/env perl
 #
 # ====================================================================
 # Written by Andy Polyakov <appro@fy.chalmers.se> 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/.
 # ====================================================================
 #
 # SHA256 block transform for x86. September 2007.
 #
 # Performance in clock cycles per processed byte (less is better):
 #
 #		Pentium	PIII	P4	AMD K8	Core2
 # gcc		46	36	41	27	26
 # icc		57	33	38	25	23
 # x86 asm	40	30	33	20	18
 # x86_64 asm(*)	-	-	21	16	16
 #
 # (*) x86_64 assembler performance is presented for reference
 #     purposes.
 #
 # Performance improvement over compiler generated code varies from
 # 10% to 40% [see above]. Not very impressive on some µ-archs, but
 # it's 5 times smaller and optimizies amount of writes.

 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
 push(@INC,"${dir}","${dir}../../perlasm");
 require "x86asm.pl";

 &asm_init($ARGV[0],"sha512-586.pl",$ARGV[$#ARGV] eq "386");

 $A="eax";
 $E="edx";
 $T="ebx";
 $Aoff=&DWP(0,"esp");
 $Boff=&DWP(4,"esp");
 $Coff=&DWP(8,"esp");
 $Doff=&DWP(12,"esp");
 $Eoff=&DWP(16,"esp");
 $Foff=&DWP(20,"esp");
 $Goff=&DWP(24,"esp");
 $Hoff=&DWP(28,"esp");
 $Xoff=&DWP(32,"esp");
 $K256="ebp";

 sub BODY_00_15() {
     my $in_16_63=shift;

 	&mov	("ecx",$E);
 	 &add	($T,"edi")			if ($in_16_63);	# T += sigma1(X[-2])
 	&ror	("ecx",25-11);
 	 &mov	("esi",$Foff);
 	&xor	("ecx",$E);
 	&ror	("ecx",11-6);
 	 &mov	(&DWP(4*(8+15),"esp"),$T)	if ($in_16_63);	# save X[0]
 	&xor	("ecx",$E);
 	&ror	("ecx",6);	# Sigma1(e)
 	 &mov	("edi",$Goff);
 	&add	($T,"ecx");	# T += Sigma1(e)

 	&xor	("esi","edi");
 	 &mov	($Eoff,$E);	# modulo-scheduled
 	 &mov	("ecx",$A);
 	&and	("esi",$E);
 	 &mov	($E,$Doff);	# e becomes d, which is e in next iteration
 	&xor	("esi","edi");	# Ch(e,f,g)
 	 &mov	("edi",$A);
 	&add	($T,"esi");	# T += Ch(e,f,g)

 	&ror	("ecx",22-13);
 	 &add	($T,$Hoff);	# T += h
 	&xor	("ecx",$A);
 	&ror	("ecx",13-2);
 	 &mov	("esi",$Boff);
 	&xor	("ecx",$A);
 	&ror	("ecx",2);	# Sigma0(a)
 	 &add	($E,$T);	# d += T
 	 &mov	("edi",$Coff);

 	&add	($T,"ecx");	# T += Sigma0(a)
 	 &mov	($Aoff,$A);	# modulo-scheduled

 	&mov	("ecx",$A);
 	 &sub	("esp",4);
 	&or	($A,"esi");	# a becomes h, which is a in next iteration
 	&and	("ecx","esi");
 	&and	($A,"edi");
 	 &mov	("esi",&DWP(0,$K256));
 	&or	($A,"ecx");	# h=Maj(a,b,c)

 	&add	($K256,4);
 	&add	($A,$T);	# h += T
 	 &mov	($T,&DWP(4*(8+15+16-1),"esp"))	if ($in_16_63);	# preload T
 	&add	($E,"esi");	# d += K256[i]
 	&add	($A,"esi");	# h += K256[i]
 }

 &function_begin("sha256_block_data_order");
 	&mov	("esi",wparam(0));	# ctx
 	&mov	("edi",wparam(1));	# inp
 	&mov	("eax",wparam(2));	# num
 	&mov	("ebx","esp");		# saved sp

 	&call	(&label("pic_point"));	# make it PIC!
 &set_label("pic_point");
 	&blindpop($K256);
 	&lea	($K256,&DWP(&label("K256")."-".&label("pic_point"),$K256));

 	&sub	("esp",16);
 	&and	("esp",-64);

 	&shl	("eax",6);
 	&add	("eax","edi");
 	&mov	(&DWP(0,"esp"),"esi");	# ctx
 	&mov	(&DWP(4,"esp"),"edi");	# inp
 	&mov	(&DWP(8,"esp"),"eax");	# inp+num*128
 	&mov	(&DWP(12,"esp"),"ebx");	# saved sp

 &set_label("loop",16);
     # copy input block to stack reversing byte and dword order
     for($i=0;$i<4;$i++) {
 	&mov	("eax",&DWP($i*16+0,"edi"));
 	&mov	("ebx",&DWP($i*16+4,"edi"));
 	&mov	("ecx",&DWP($i*16+8,"edi"));
 	&mov	("edx",&DWP($i*16+12,"edi"));
 	&bswap	("eax");
 	&bswap	("ebx");
 	&bswap	("ecx");
 	&bswap	("edx");
 	&push	("eax");
 	&push	("ebx");
 	&push	("ecx");
 	&push	("edx");
     }
 	&add	("edi",64);
 	&sub	("esp",4*8);		# place for A,B,C,D,E,F,G,H
 	&mov	(&DWP(4*(8+16)+4,"esp"),"edi");

 	# copy ctx->h[0-7] to A,B,C,D,E,F,G,H on stack
 	&mov	($A,&DWP(0,"esi"));
 	&mov	("ebx",&DWP(4,"esi"));
 	&mov	("ecx",&DWP(8,"esi"));
 	&mov	("edi",&DWP(12,"esi"));
 	# &mov	($Aoff,$A);
 	&mov	($Boff,"ebx");
 	&mov	($Coff,"ecx");
 	&mov	($Doff,"edi");
 	&mov	($E,&DWP(16,"esi"));
 	&mov	("ebx",&DWP(20,"esi"));
 	&mov	("ecx",&DWP(24,"esi"));
 	&mov	("edi",&DWP(28,"esi"));
 	# &mov	($Eoff,$E);
 	&mov	($Foff,"ebx");
 	&mov	($Goff,"ecx");
 	&mov	($Hoff,"edi");

 &set_label("00_15",16);
 	&mov	($T,&DWP(4*(8+15),"esp"));

 	&BODY_00_15();

 	&cmp	("esi",0xc19bf174);
 	&jne	(&label("00_15"));

 	&mov	($T,&DWP(4*(8+15+16-1),"esp"));	# preloaded in BODY_00_15(1)
 &set_label("16_63",16);
 	&mov	("esi",$T);
 	 &mov	("ecx",&DWP(4*(8+15+16-14),"esp"));
 	&ror	("esi",18-7);
 	 &mov	("edi","ecx");
 	&xor	("esi",$T);
 	&ror	("esi",7);
 	&shr	($T,3);

 	&ror	("edi",19-17);
 	 &xor	($T,"esi");			# T = sigma0(X[-15])
 	&xor	("edi","ecx");
 	&ror	("edi",17);
 	&shr	("ecx",10);
 	 &add	($T,&DWP(4*(8+15+16),"esp"));	# T += X[-16]
 	&xor	("edi","ecx");			# sigma1(X[-2])

 	 &add	($T,&DWP(4*(8+15+16-9),"esp"));	# T += X[-7]
 	# &add	($T,"edi");			# T += sigma1(X[-2])
 	# &mov	(&DWP(4*(8+15),"esp"),$T);	# save X[0]

 	&BODY_00_15(1);

 	&cmp	("esi",0xc67178f2);
 	&jne	(&label("16_63"));

 	&mov	("esi",&DWP(4*(8+16+64)+0,"esp"));#ctx
 	# &mov	($A,$Aoff);
 	&mov	("ebx",$Boff);
 	&mov	("ecx",$Coff);
 	&mov	("edi",$Doff);
 	&add	($A,&DWP(0,"esi"));
 	&add	("ebx",&DWP(4,"esi"));
 	&add	("ecx",&DWP(8,"esi"));
 	&add	("edi",&DWP(12,"esi"));
 	&mov	(&DWP(0,"esi"),$A);
 	&mov	(&DWP(4,"esi"),"ebx");
 	&mov	(&DWP(8,"esi"),"ecx");
 	&mov	(&DWP(12,"esi"),"edi");
 	# &mov	($E,$Eoff);
 	&mov	("eax",$Foff);
 	&mov	("ebx",$Goff);
 	&mov	("ecx",$Hoff);
 	&mov	("edi",&DWP(4*(8+16+64)+4,"esp"));#inp
 	&add	($E,&DWP(16,"esi"));
 	&add	("eax",&DWP(20,"esi"));
 	&add	("ebx",&DWP(24,"esi"));
 	&add	("ecx",&DWP(28,"esi"));
 	&mov	(&DWP(16,"esi"),$E);
 	&mov	(&DWP(20,"esi"),"eax");
 	&mov	(&DWP(24,"esi"),"ebx");
 	&mov	(&DWP(28,"esi"),"ecx");

 	&add	("esp",4*(8+16+64));		# destroy frame
 	&sub	($K256,4*64);			# rewind K

 	&cmp	("edi",&DWP(8,"esp"));		# are we done yet?
 	&jb	(&label("loop"));

 	&mov	("esp",&DWP(12,"esp"));		# restore sp
 &function_end_A();

 &set_label("K256",64);	# Yes! I keep it in the code segment!
 	&data_word(0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5);
 	&data_word(0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5);
 	&data_word(0xd807aa98,0x12835b01,0x243185be,0x550c7dc3);
 	&data_word(0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174);
 	&data_word(0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc);
 	&data_word(0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da);
 	&data_word(0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7);
 	&data_word(0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967);
 	&data_word(0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13);
 	&data_word(0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85);
 	&data_word(0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3);
 	&data_word(0xd192e819,0xd6990624,0xf40e3585,0x106aa070);
 	&data_word(0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5);
 	&data_word(0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3);
 	&data_word(0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208);
 	&data_word(0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2);
 &function_end_B("sha256_block_data_order");
 &asciz("SHA256 block transform for x86, CRYPTOGAMS by <appro\@openssl.org>");

 &asm_finish();
	#!/usr/bin/env perl
	#
	# ====================================================================
	# Written by Andy Polyakov <appro@fy.chalmers.se> 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/.
	# ====================================================================
	#
	# SHA256 block transform for x86. September 2007.
	#
	# Performance in clock cycles per processed byte (less is better):
	#
	# Pentium PIII P4 AMD K8 Core2
	# gcc 46 36 41 27 26
	# icc 57 33 38 25 23
	# x86 asm 40 30 33 20 18
	# x86_64 asm(*) - - 21 16 16
	#
	# (*) x86_64 assembler performance is presented for reference
	# purposes.
	#
	# Performance improvement over compiler generated code varies from
	# 10% to 40% [see above]. Not very impressive on some µ-archs, but
	# it's 5 times smaller and optimizies amount of writes.

	$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
	push(@INC,"${dir}","${dir}../../perlasm");
	require "x86asm.pl";

	&asm_init($ARGV[0],"sha512-586.pl",$ARGV[$#ARGV] eq "386");

	$A="eax";
	$E="edx";
	$T="ebx";
	$Aoff=&DWP(0,"esp");
	$Boff=&DWP(4,"esp");
	$Coff=&DWP(8,"esp");
	$Doff=&DWP(12,"esp");
	$Eoff=&DWP(16,"esp");
	$Foff=&DWP(20,"esp");
	$Goff=&DWP(24,"esp");
	$Hoff=&DWP(28,"esp");
	$Xoff=&DWP(32,"esp");
	$K256="ebp";

	sub BODY_00_15() {
	my $in_16_63=shift;

	&mov ("ecx",$E);
	&add ($T,"edi") if ($in_16_63); # T += sigma1(X[-2])
	&ror ("ecx",25-11);
	&mov ("esi",$Foff);
	&xor ("ecx",$E);
	&ror ("ecx",11-6);
	&mov (&DWP(4*(8+15),"esp"),$T) if ($in_16_63); # save X[0]
	&xor ("ecx",$E);
	&ror ("ecx",6); # Sigma1(e)
	&mov ("edi",$Goff);
	&add ($T,"ecx"); # T += Sigma1(e)

	&xor ("esi","edi");
	&mov ($Eoff,$E); # modulo-scheduled
	&mov ("ecx",$A);
	&and ("esi",$E);
	&mov ($E,$Doff); # e becomes d, which is e in next iteration
	&xor ("esi","edi"); # Ch(e,f,g)
	&mov ("edi",$A);
	&add ($T,"esi"); # T += Ch(e,f,g)

	&ror ("ecx",22-13);
	&add ($T,$Hoff); # T += h
	&xor ("ecx",$A);
	&ror ("ecx",13-2);
	&mov ("esi",$Boff);
	&xor ("ecx",$A);
	&ror ("ecx",2); # Sigma0(a)
	&add ($E,$T); # d += T
	&mov ("edi",$Coff);

	&add ($T,"ecx"); # T += Sigma0(a)
	&mov ($Aoff,$A); # modulo-scheduled

	&mov ("ecx",$A);
	&sub ("esp",4);
	&or ($A,"esi"); # a becomes h, which is a in next iteration
	&and ("ecx","esi");
	&and ($A,"edi");
	&mov ("esi",&DWP(0,$K256));
	&or ($A,"ecx"); # h=Maj(a,b,c)

	&add ($K256,4);
	&add ($A,$T); # h += T
	&mov ($T,&DWP(4*(8+15+16-1),"esp")) if ($in_16_63); # preload T
	&add ($E,"esi"); # d += K256[i]
	&add ($A,"esi"); # h += K256[i]
	}

	&function_begin("sha256_block_data_order");
	&mov ("esi",wparam(0)); # ctx
	&mov ("edi",wparam(1)); # inp
	&mov ("eax",wparam(2)); # num
	&mov ("ebx","esp"); # saved sp

	&call (&label("pic_point")); # make it PIC!
	&set_label("pic_point");
	&blindpop($K256);
	&lea ($K256,&DWP(&label("K256")."-".&label("pic_point"),$K256));

	&sub ("esp",16);
	&and ("esp",-64);

	&shl ("eax",6);
	&add ("eax","edi");
	&mov (&DWP(0,"esp"),"esi"); # ctx
	&mov (&DWP(4,"esp"),"edi"); # inp
	&mov (&DWP(8,"esp"),"eax"); # inp+num*128
	&mov (&DWP(12,"esp"),"ebx"); # saved sp

	&set_label("loop",16);
	# copy input block to stack reversing byte and dword order
	for($i=0;$i<4;$i++) {
	&mov ("eax",&DWP($i*16+0,"edi"));
	&mov ("ebx",&DWP($i*16+4,"edi"));
	&mov ("ecx",&DWP($i*16+8,"edi"));
	&mov ("edx",&DWP($i*16+12,"edi"));
	&bswap ("eax");
	&bswap ("ebx");
	&bswap ("ecx");
	&bswap ("edx");
	&push ("eax");
	&push ("ebx");
	&push ("ecx");
	&push ("edx");
	}
	&add ("edi",64);
	&sub ("esp",4*8); # place for A,B,C,D,E,F,G,H
	&mov (&DWP(4*(8+16)+4,"esp"),"edi");

	# copy ctx->h[0-7] to A,B,C,D,E,F,G,H on stack
	&mov ($A,&DWP(0,"esi"));
	&mov ("ebx",&DWP(4,"esi"));
	&mov ("ecx",&DWP(8,"esi"));
	&mov ("edi",&DWP(12,"esi"));
	# &mov ($Aoff,$A);
	&mov ($Boff,"ebx");
	&mov ($Coff,"ecx");
	&mov ($Doff,"edi");
	&mov ($E,&DWP(16,"esi"));
	&mov ("ebx",&DWP(20,"esi"));
	&mov ("ecx",&DWP(24,"esi"));
	&mov ("edi",&DWP(28,"esi"));
	# &mov ($Eoff,$E);
	&mov ($Foff,"ebx");
	&mov ($Goff,"ecx");
	&mov ($Hoff,"edi");

	&set_label("00_15",16);
	&mov ($T,&DWP(4*(8+15),"esp"));

	&BODY_00_15();

	&cmp ("esi",0xc19bf174);
	&jne (&label("00_15"));

	&mov ($T,&DWP(4*(8+15+16-1),"esp")); # preloaded in BODY_00_15(1)
	&set_label("16_63",16);
	&mov ("esi",$T);
	&mov ("ecx",&DWP(4*(8+15+16-14),"esp"));
	&ror ("esi",18-7);
	&mov ("edi","ecx");
	&xor ("esi",$T);
	&ror ("esi",7);
	&shr ($T,3);

	&ror ("edi",19-17);
	&xor ($T,"esi"); # T = sigma0(X[-15])
	&xor ("edi","ecx");
	&ror ("edi",17);
	&shr ("ecx",10);
	&add ($T,&DWP(4*(8+15+16),"esp")); # T += X[-16]
	&xor ("edi","ecx"); # sigma1(X[-2])

	&add ($T,&DWP(4*(8+15+16-9),"esp")); # T += X[-7]
	# &add ($T,"edi"); # T += sigma1(X[-2])
	# &mov (&DWP(4*(8+15),"esp"),$T); # save X[0]

	&BODY_00_15(1);

	&cmp ("esi",0xc67178f2);
	&jne (&label("16_63"));

	&mov ("esi",&DWP(4*(8+16+64)+0,"esp"));#ctx
	# &mov ($A,$Aoff);
	&mov ("ebx",$Boff);
	&mov ("ecx",$Coff);
	&mov ("edi",$Doff);
	&add ($A,&DWP(0,"esi"));
	&add ("ebx",&DWP(4,"esi"));
	&add ("ecx",&DWP(8,"esi"));
	&add ("edi",&DWP(12,"esi"));
	&mov (&DWP(0,"esi"),$A);
	&mov (&DWP(4,"esi"),"ebx");
	&mov (&DWP(8,"esi"),"ecx");
	&mov (&DWP(12,"esi"),"edi");
	# &mov ($E,$Eoff);
	&mov ("eax",$Foff);
	&mov ("ebx",$Goff);
	&mov ("ecx",$Hoff);
	&mov ("edi",&DWP(4*(8+16+64)+4,"esp"));#inp
	&add ($E,&DWP(16,"esi"));
	&add ("eax",&DWP(20,"esi"));
	&add ("ebx",&DWP(24,"esi"));
	&add ("ecx",&DWP(28,"esi"));
	&mov (&DWP(16,"esi"),$E);
	&mov (&DWP(20,"esi"),"eax");
	&mov (&DWP(24,"esi"),"ebx");
	&mov (&DWP(28,"esi"),"ecx");

	&add ("esp",4*(8+16+64)); # destroy frame
	&sub ($K256,4*64); # rewind K

	&cmp ("edi",&DWP(8,"esp")); # are we done yet?
	&jb (&label("loop"));

	&mov ("esp",&DWP(12,"esp")); # restore sp
	&function_end_A();

	&set_label("K256",64); # Yes! I keep it in the code segment!
	&data_word(0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5);
	&data_word(0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5);
	&data_word(0xd807aa98,0x12835b01,0x243185be,0x550c7dc3);
	&data_word(0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174);
	&data_word(0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc);
	&data_word(0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da);
	&data_word(0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7);
	&data_word(0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967);
	&data_word(0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13);
	&data_word(0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85);
	&data_word(0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3);
	&data_word(0xd192e819,0xd6990624,0xf40e3585,0x106aa070);
	&data_word(0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5);
	&data_word(0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3);
	&data_word(0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208);
	&data_word(0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2);
	&function_end_B("sha256_block_data_order");
	&asciz("SHA256 block transform for x86, CRYPTOGAMS by <appro\@openssl.org>");

	&asm_finish();