initial/final commitHEADmaster

1 files changed, 645 insertions, 0 deletions

diff --git a/openssl-1.1.0h/crypto/rc4/asm/rc4-md5-x86_64.pl b/openssl-1.1.0h/crypto/rc4/asm/rc4-md5-x86_64.pl
new file mode 100644
index 0000000..890161b
--- /dev/null
+++ b/openssl-1.1.0h/crypto/rc4/asm/rc4-md5-x86_64.pl
@@ -0,0 +1,645 @@
+#! /usr/bin/env perl
+# Copyright 2011-2016 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the OpenSSL license (the "License").  You may not use
+# this file except in compliance with the License.  You can obtain a copy
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
+
+#
+# ====================================================================
+# 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/.
+# ====================================================================
+
+# June 2011
+#
+# This is RC4+MD5 "stitch" implementation. The idea, as spelled in
+# http://download.intel.com/design/intarch/papers/323686.pdf, is that
+# since both algorithms exhibit instruction-level parallelism, ILP,
+# below theoretical maximum, interleaving them would allow to utilize
+# processor resources better and achieve better performance. RC4
+# instruction sequence is virtually identical to rc4-x86_64.pl, which
+# is heavily based on submission by Maxim Perminov, Maxim Locktyukhin
+# and Jim Guilford of Intel. MD5 is fresh implementation aiming to
+# minimize register usage, which was used as "main thread" with RC4
+# weaved into it, one RC4 round per one MD5 round. In addition to the
+# stiched subroutine the script can generate standalone replacement
+# md5_block_asm_data_order and RC4. Below are performance numbers in
+# cycles per processed byte, less is better, for these the standalone
+# subroutines, sum of them, and stitched one:
+#
+#		RC4	MD5	RC4+MD5	stitch	gain
+# Opteron	6.5(*)	5.4	11.9	7.0	+70%(*)
+# Core2		6.5	5.8	12.3	7.7	+60%
+# Westmere	4.3	5.2	9.5	7.0	+36%
+# Sandy Bridge	4.2	5.5	9.7	6.8	+43%
+# Ivy Bridge	4.1	5.2	9.3	6.0	+54%
+# Haswell	4.0	5.0	9.0	5.7	+60%
+# Skylake	6.3(**)	5.0	11.3	5.3	+110%
+# Atom		9.3	6.5	15.8	11.1	+42%
+# VIA Nano	6.3	5.4	11.7	8.6	+37%
+# Bulldozer	4.5	5.4	9.9	7.7	+29%
+#
+# (*)	rc4-x86_64.pl delivers 5.3 on Opteron, so real improvement
+#	is +53%...
+# (**)	unidentified anomaly;
+
+my ($rc4,$md5)=(1,1);	# what to generate?
+my $D="#" if (!$md5);	# if set to "#", MD5 is stitched into RC4(),
+			# but its result is discarded. Idea here is
+			# to be able to use 'openssl speed rc4' for
+			# benchmarking the stitched subroutine... 
+
+my $flavour = shift;
+my $output  = shift;
+if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
+
+my $win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
+
+$0 =~ m/(.*[\/\\])[^\/\\]+$/; my $dir=$1; my $xlate;
+( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
+( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
+die "can't locate x86_64-xlate.pl";
+
+open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\"";
+*STDOUT=*OUT;
+
+my ($dat,$in0,$out,$ctx,$inp,$len, $func,$nargs);
+
+if ($rc4 && !$md5) {
+  ($dat,$len,$in0,$out) = ("%rdi","%rsi","%rdx","%rcx");
+  $func="RC4";				$nargs=4;
+} elsif ($md5 && !$rc4) {
+  ($ctx,$inp,$len) = ("%rdi","%rsi","%rdx");
+  $func="md5_block_asm_data_order";	$nargs=3;
+} else {
+  ($dat,$in0,$out,$ctx,$inp,$len) = ("%rdi","%rsi","%rdx","%rcx","%r8","%r9");
+  $func="rc4_md5_enc";			$nargs=6;
+  # void rc4_md5_enc(
+  #		RC4_KEY *key,		#
+  #		const void *in0,	# RC4 input
+  #		void *out,		# RC4 output
+  #		MD5_CTX *ctx,		#
+  #		const void *inp,	# MD5 input
+  #		size_t len);		# number of 64-byte blocks
+}
+
+my @K=(	0xd76aa478,0xe8c7b756,0x242070db,0xc1bdceee,
+	0xf57c0faf,0x4787c62a,0xa8304613,0xfd469501,
+	0x698098d8,0x8b44f7af,0xffff5bb1,0x895cd7be,
+	0x6b901122,0xfd987193,0xa679438e,0x49b40821,
+
+	0xf61e2562,0xc040b340,0x265e5a51,0xe9b6c7aa,
+	0xd62f105d,0x02441453,0xd8a1e681,0xe7d3fbc8,
+	0x21e1cde6,0xc33707d6,0xf4d50d87,0x455a14ed,
+	0xa9e3e905,0xfcefa3f8,0x676f02d9,0x8d2a4c8a,
+
+	0xfffa3942,0x8771f681,0x6d9d6122,0xfde5380c,
+	0xa4beea44,0x4bdecfa9,0xf6bb4b60,0xbebfbc70,
+	0x289b7ec6,0xeaa127fa,0xd4ef3085,0x04881d05,
+	0xd9d4d039,0xe6db99e5,0x1fa27cf8,0xc4ac5665,
+
+	0xf4292244,0x432aff97,0xab9423a7,0xfc93a039,
+	0x655b59c3,0x8f0ccc92,0xffeff47d,0x85845dd1,
+	0x6fa87e4f,0xfe2ce6e0,0xa3014314,0x4e0811a1,
+	0xf7537e82,0xbd3af235,0x2ad7d2bb,0xeb86d391	);
+
+my @V=("%r8d","%r9d","%r10d","%r11d");	# MD5 registers
+my $tmp="%r12d";
+
+my @XX=("%rbp","%rsi");			# RC4 registers
+my @TX=("%rax","%rbx");
+my $YY="%rcx";
+my $TY="%rdx";
+
+my $MOD=32;				# 16, 32 or 64
+
+$code.=<<___;
+.text
+.align 16
+
+.globl	$func
+.type	$func,\@function,$nargs
+$func:
+	cmp	\$0,$len
+	je	.Labort
+	push	%rbx
+	push	%rbp
+	push	%r12
+	push	%r13
+	push	%r14
+	push	%r15
+	sub	\$40,%rsp
+.Lbody:
+___
+if ($rc4) {
+$code.=<<___;
+$D#md5#	mov	$ctx,%r11		# reassign arguments
+	mov	$len,%r12
+	mov	$in0,%r13
+	mov	$out,%r14
+$D#md5#	mov	$inp,%r15
+___
+    $ctx="%r11"	if ($md5);		# reassign arguments
+    $len="%r12";
+    $in0="%r13";
+    $out="%r14";
+    $inp="%r15"	if ($md5);
+    $inp=$in0	if (!$md5);
+$code.=<<___;
+	xor	$XX[0],$XX[0]
+	xor	$YY,$YY
+
+	lea	8($dat),$dat
+	mov	-8($dat),$XX[0]#b
+	mov	-4($dat),$YY#b
+
+	inc	$XX[0]#b
+	sub	$in0,$out
+	movl	($dat,$XX[0],4),$TX[0]#d
+___
+$code.=<<___ if (!$md5);
+	xor	$TX[1],$TX[1]
+	test	\$-128,$len
+	jz	.Loop1
+	sub	$XX[0],$TX[1]
+	and	\$`$MOD-1`,$TX[1]
+	jz	.Loop${MOD}_is_hot
+	sub	$TX[1],$len
+.Loop${MOD}_warmup:
+	add	$TX[0]#b,$YY#b
+	movl	($dat,$YY,4),$TY#d
+	movl	$TX[0]#d,($dat,$YY,4)
+	movl	$TY#d,($dat,$XX[0],4)
+	add	$TY#b,$TX[0]#b
+	inc	$XX[0]#b
+	movl	($dat,$TX[0],4),$TY#d
+	movl	($dat,$XX[0],4),$TX[0]#d
+	xorb	($in0),$TY#b
+	movb	$TY#b,($out,$in0)
+	lea	1($in0),$in0
+	dec	$TX[1]
+	jnz	.Loop${MOD}_warmup
+
+	mov	$YY,$TX[1]
+	xor	$YY,$YY
+	mov	$TX[1]#b,$YY#b
+
+.Loop${MOD}_is_hot:
+	mov	$len,32(%rsp)		# save original $len
+	shr	\$6,$len		# number of 64-byte blocks
+___
+  if ($D && !$md5) {			# stitch in dummy MD5
+    $md5=1;
+    $ctx="%r11";
+    $inp="%r15";
+    $code.=<<___;
+	mov	%rsp,$ctx
+	mov	$in0,$inp
+___
+  }
+}
+$code.=<<___;
+#rc4#	add	$TX[0]#b,$YY#b
+#rc4#	lea	($dat,$XX[0],4),$XX[1]
+	shl	\$6,$len
+	add	$inp,$len		# pointer to the end of input
+	mov	$len,16(%rsp)
+
+#md5#	mov	$ctx,24(%rsp)		# save pointer to MD5_CTX
+#md5#	mov	0*4($ctx),$V[0]		# load current hash value from MD5_CTX
+#md5#	mov	1*4($ctx),$V[1]
+#md5#	mov	2*4($ctx),$V[2]
+#md5#	mov	3*4($ctx),$V[3]
+	jmp	.Loop
+
+.align	16
+.Loop:
+#md5#	mov	$V[0],0*4(%rsp)		# put aside current hash value
+#md5#	mov	$V[1],1*4(%rsp)
+#md5#	mov	$V[2],2*4(%rsp)
+#md5#	mov	$V[3],$tmp		# forward reference
+#md5#	mov	$V[3],3*4(%rsp)
+___
+
+sub R0 {
+  my ($i,$a,$b,$c,$d)=@_;
+  my @rot0=(7,12,17,22);
+  my $j=$i%16;
+  my $k=$i%$MOD;
+  my $xmm="%xmm".($j&1);
+    $code.="	movdqu	($in0),%xmm2\n"		if ($rc4 && $j==15);
+    $code.="	add	\$$MOD,$XX[0]#b\n"	if ($rc4 && $j==15 && $k==$MOD-1);
+    $code.="	pxor	$xmm,$xmm\n"		if ($rc4 && $j<=1);
+    $code.=<<___;
+#rc4#	movl	($dat,$YY,4),$TY#d
+#md5#	xor	$c,$tmp
+#rc4#	movl	$TX[0]#d,($dat,$YY,4)
+#md5#	and	$b,$tmp
+#md5#	add	4*`$j`($inp),$a
+#rc4#	add	$TY#b,$TX[0]#b
+#rc4#	movl	`4*(($k+1)%$MOD)`(`$k==$MOD-1?"$dat,$XX[0],4":"$XX[1]"`),$TX[1]#d
+#md5#	add	\$$K[$i],$a
+#md5#	xor	$d,$tmp
+#rc4#	movz	$TX[0]#b,$TX[0]#d
+#rc4#	movl	$TY#d,4*$k($XX[1])
+#md5#	add	$tmp,$a
+#rc4#	add	$TX[1]#b,$YY#b
+#md5#	rol	\$$rot0[$j%4],$a
+#md5#	mov	`$j==15?"$b":"$c"`,$tmp		# forward reference
+#rc4#	pinsrw	\$`($j>>1)&7`,($dat,$TX[0],4),$xmm\n
+#md5#	add	$b,$a
+___
+    $code.=<<___ if ($rc4 && $j==15 && $k==$MOD-1);
+	mov	$YY,$XX[1]
+	xor	$YY,$YY				# keyword to partial register
+	mov	$XX[1]#b,$YY#b
+	lea	($dat,$XX[0],4),$XX[1]
+___
+    $code.=<<___ if ($rc4 && $j==15);
+	psllq	\$8,%xmm1
+	pxor	%xmm0,%xmm2
+	pxor	%xmm1,%xmm2
+___
+}
+sub R1 {
+  my ($i,$a,$b,$c,$d)=@_;
+  my @rot1=(5,9,14,20);
+  my $j=$i%16;
+  my $k=$i%$MOD;
+  my $xmm="%xmm".($j&1);
+    $code.="	movdqu	16($in0),%xmm3\n"	if ($rc4 && $j==15);
+    $code.="	add	\$$MOD,$XX[0]#b\n"	if ($rc4 && $j==15 && $k==$MOD-1);
+    $code.="	pxor	$xmm,$xmm\n"		if ($rc4 && $j<=1);
+    $code.=<<___;
+#rc4#	movl	($dat,$YY,4),$TY#d
+#md5#	xor	$b,$tmp
+#rc4#	movl	$TX[0]#d,($dat,$YY,4)
+#md5#	and	$d,$tmp
+#md5#	add	4*`((1+5*$j)%16)`($inp),$a
+#rc4#	add	$TY#b,$TX[0]#b
+#rc4#	movl	`4*(($k+1)%$MOD)`(`$k==$MOD-1?"$dat,$XX[0],4":"$XX[1]"`),$TX[1]#d
+#md5#	add	\$$K[$i],$a
+#md5#	xor	$c,$tmp
+#rc4#	movz	$TX[0]#b,$TX[0]#d
+#rc4#	movl	$TY#d,4*$k($XX[1])
+#md5#	add	$tmp,$a
+#rc4#	add	$TX[1]#b,$YY#b
+#md5#	rol	\$$rot1[$j%4],$a
+#md5#	mov	`$j==15?"$c":"$b"`,$tmp		# forward reference
+#rc4#	pinsrw	\$`($j>>1)&7`,($dat,$TX[0],4),$xmm\n
+#md5#	add	$b,$a
+___
+    $code.=<<___ if ($rc4 && $j==15 && $k==$MOD-1);
+	mov	$YY,$XX[1]
+	xor	$YY,$YY				# keyword to partial register
+	mov	$XX[1]#b,$YY#b
+	lea	($dat,$XX[0],4),$XX[1]
+___
+    $code.=<<___ if ($rc4 && $j==15);
+	psllq	\$8,%xmm1
+	pxor	%xmm0,%xmm3
+	pxor	%xmm1,%xmm3
+___
+}
+sub R2 {
+  my ($i,$a,$b,$c,$d)=@_;
+  my @rot2=(4,11,16,23);
+  my $j=$i%16;
+  my $k=$i%$MOD;
+  my $xmm="%xmm".($j&1);
+    $code.="	movdqu	32($in0),%xmm4\n"	if ($rc4 && $j==15);
+    $code.="	add	\$$MOD,$XX[0]#b\n"	if ($rc4 && $j==15 && $k==$MOD-1);
+    $code.="	pxor	$xmm,$xmm\n"		if ($rc4 && $j<=1);
+    $code.=<<___;
+#rc4#	movl	($dat,$YY,4),$TY#d
+#md5#	xor	$c,$tmp
+#rc4#	movl	$TX[0]#d,($dat,$YY,4)
+#md5#	xor	$b,$tmp
+#md5#	add	4*`((5+3*$j)%16)`($inp),$a
+#rc4#	add	$TY#b,$TX[0]#b
+#rc4#	movl	`4*(($k+1)%$MOD)`(`$k==$MOD-1?"$dat,$XX[0],4":"$XX[1]"`),$TX[1]#d
+#md5#	add	\$$K[$i],$a
+#rc4#	movz	$TX[0]#b,$TX[0]#d
+#md5#	add	$tmp,$a
+#rc4#	movl	$TY#d,4*$k($XX[1])
+#rc4#	add	$TX[1]#b,$YY#b
+#md5#	rol	\$$rot2[$j%4],$a
+#md5#	mov	`$j==15?"\\\$-1":"$c"`,$tmp	# forward reference
+#rc4#	pinsrw	\$`($j>>1)&7`,($dat,$TX[0],4),$xmm\n
+#md5#	add	$b,$a
+___
+    $code.=<<___ if ($rc4 && $j==15 && $k==$MOD-1);
+	mov	$YY,$XX[1]
+	xor	$YY,$YY				# keyword to partial register
+	mov	$XX[1]#b,$YY#b
+	lea	($dat,$XX[0],4),$XX[1]
+___
+    $code.=<<___ if ($rc4 && $j==15);
+	psllq	\$8,%xmm1
+	pxor	%xmm0,%xmm4
+	pxor	%xmm1,%xmm4
+___
+}
+sub R3 {
+  my ($i,$a,$b,$c,$d)=@_;
+  my @rot3=(6,10,15,21);
+  my $j=$i%16;
+  my $k=$i%$MOD;
+  my $xmm="%xmm".($j&1);
+    $code.="	movdqu	48($in0),%xmm5\n"	if ($rc4 && $j==15);
+    $code.="	add	\$$MOD,$XX[0]#b\n"	if ($rc4 && $j==15 && $k==$MOD-1);
+    $code.="	pxor	$xmm,$xmm\n"		if ($rc4 && $j<=1);
+    $code.=<<___;
+#rc4#	movl	($dat,$YY,4),$TY#d
+#md5#	xor	$d,$tmp
+#rc4#	movl	$TX[0]#d,($dat,$YY,4)
+#md5#	or	$b,$tmp
+#md5#	add	4*`((7*$j)%16)`($inp),$a
+#rc4#	add	$TY#b,$TX[0]#b
+#rc4#	movl	`4*(($k+1)%$MOD)`(`$k==$MOD-1?"$dat,$XX[0],4":"$XX[1]"`),$TX[1]#d
+#md5#	add	\$$K[$i],$a
+#rc4#	movz	$TX[0]#b,$TX[0]#d
+#md5#	xor	$c,$tmp
+#rc4#	movl	$TY#d,4*$k($XX[1])
+#md5#	add	$tmp,$a
+#rc4#	add	$TX[1]#b,$YY#b
+#md5#	rol	\$$rot3[$j%4],$a
+#md5#	mov	\$-1,$tmp			# forward reference
+#rc4#	pinsrw	\$`($j>>1)&7`,($dat,$TX[0],4),$xmm\n
+#md5#	add	$b,$a
+___
+    $code.=<<___ if ($rc4 && $j==15);
+	mov	$XX[0],$XX[1]
+	xor	$XX[0],$XX[0]			# keyword to partial register
+	mov	$XX[1]#b,$XX[0]#b
+	mov	$YY,$XX[1]
+	xor	$YY,$YY				# keyword to partial register
+	mov	$XX[1]#b,$YY#b
+	lea	($dat,$XX[0],4),$XX[1]
+	psllq	\$8,%xmm1
+	pxor	%xmm0,%xmm5
+	pxor	%xmm1,%xmm5
+___
+}
+
+my $i=0;
+for(;$i<16;$i++) { R0($i,@V); unshift(@V,pop(@V)); push(@TX,shift(@TX)); }
+for(;$i<32;$i++) { R1($i,@V); unshift(@V,pop(@V)); push(@TX,shift(@TX)); }
+for(;$i<48;$i++) { R2($i,@V); unshift(@V,pop(@V)); push(@TX,shift(@TX)); }
+for(;$i<64;$i++) { R3($i,@V); unshift(@V,pop(@V)); push(@TX,shift(@TX)); }
+
+$code.=<<___;
+#md5#	add	0*4(%rsp),$V[0]		# accumulate hash value
+#md5#	add	1*4(%rsp),$V[1]
+#md5#	add	2*4(%rsp),$V[2]
+#md5#	add	3*4(%rsp),$V[3]
+
+#rc4#	movdqu	%xmm2,($out,$in0)	# write RC4 output
+#rc4#	movdqu	%xmm3,16($out,$in0)
+#rc4#	movdqu	%xmm4,32($out,$in0)
+#rc4#	movdqu	%xmm5,48($out,$in0)
+#md5#	lea	64($inp),$inp
+#rc4#	lea	64($in0),$in0
+	cmp	16(%rsp),$inp		# are we done?
+	jb	.Loop
+
+#md5#	mov	24(%rsp),$len		# restore pointer to MD5_CTX
+#rc4#	sub	$TX[0]#b,$YY#b		# correct $YY
+#md5#	mov	$V[0],0*4($len)		# write MD5_CTX
+#md5#	mov	$V[1],1*4($len)
+#md5#	mov	$V[2],2*4($len)
+#md5#	mov	$V[3],3*4($len)
+___
+$code.=<<___ if ($rc4 && (!$md5 || $D));
+	mov	32(%rsp),$len		# restore original $len
+	and	\$63,$len		# remaining bytes
+	jnz	.Loop1
+	jmp	.Ldone
+	
+.align	16
+.Loop1:
+	add	$TX[0]#b,$YY#b
+	movl	($dat,$YY,4),$TY#d
+	movl	$TX[0]#d,($dat,$YY,4)
+	movl	$TY#d,($dat,$XX[0],4)
+	add	$TY#b,$TX[0]#b
+	inc	$XX[0]#b
+	movl	($dat,$TX[0],4),$TY#d
+	movl	($dat,$XX[0],4),$TX[0]#d
+	xorb	($in0),$TY#b
+	movb	$TY#b,($out,$in0)
+	lea	1($in0),$in0
+	dec	$len
+	jnz	.Loop1
+
+.Ldone:
+___
+$code.=<<___;
+#rc4#	sub	\$1,$XX[0]#b
+#rc4#	movl	$XX[0]#d,-8($dat)
+#rc4#	movl	$YY#d,-4($dat)
+
+	mov	40(%rsp),%r15
+	mov	48(%rsp),%r14
+	mov	56(%rsp),%r13
+	mov	64(%rsp),%r12
+	mov	72(%rsp),%rbp
+	mov	80(%rsp),%rbx
+	lea	88(%rsp),%rsp
+.Lepilogue:
+.Labort:
+	ret
+.size $func,.-$func
+___
+
+if ($rc4 && $D) {	# sole purpose of this section is to provide
+			# option to use the generated module as drop-in
+			# replacement for rc4-x86_64.pl for debugging
+			# and testing purposes...
+my ($idx,$ido)=("%r8","%r9");
+my ($dat,$len,$inp)=("%rdi","%rsi","%rdx");
+
+$code.=<<___;
+.globl	RC4_set_key
+.type	RC4_set_key,\@function,3
+.align	16
+RC4_set_key:
+	lea	8($dat),$dat
+	lea	($inp,$len),$inp
+	neg	$len
+	mov	$len,%rcx
+	xor	%eax,%eax
+	xor	$ido,$ido
+	xor	%r10,%r10
+	xor	%r11,%r11
+	jmp	.Lw1stloop
+
+.align	16
+.Lw1stloop:
+	mov	%eax,($dat,%rax,4)
+	add	\$1,%al
+	jnc	.Lw1stloop
+
+	xor	$ido,$ido
+	xor	$idx,$idx
+.align	16
+.Lw2ndloop:
+	mov	($dat,$ido,4),%r10d
+	add	($inp,$len,1),$idx#b
+	add	%r10b,$idx#b
+	add	\$1,$len
+	mov	($dat,$idx,4),%r11d
+	cmovz	%rcx,$len
+	mov	%r10d,($dat,$idx,4)
+	mov	%r11d,($dat,$ido,4)
+	add	\$1,$ido#b
+	jnc	.Lw2ndloop
+
+	xor	%eax,%eax
+	mov	%eax,-8($dat)
+	mov	%eax,-4($dat)
+	ret
+.size	RC4_set_key,.-RC4_set_key
+
+.globl	RC4_options
+.type	RC4_options,\@abi-omnipotent
+.align	16
+RC4_options:
+	lea	.Lopts(%rip),%rax
+	ret
+.align	64
+.Lopts:
+.asciz	"rc4(64x,int)"
+.align	64
+.size	RC4_options,.-RC4_options
+___
+}
+# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
+#		CONTEXT *context,DISPATCHER_CONTEXT *disp)
+if ($win64) {
+my $rec="%rcx";
+my $frame="%rdx";
+my $context="%r8";
+my $disp="%r9";
+
+$code.=<<___;
+.extern	__imp_RtlVirtualUnwind
+.type	se_handler,\@abi-omnipotent
+.align	16
+se_handler:
+	push	%rsi
+	push	%rdi
+	push	%rbx
+	push	%rbp
+	push	%r12
+	push	%r13
+	push	%r14
+	push	%r15
+	pushfq
+	sub	\$64,%rsp
+
+	mov	120($context),%rax	# pull context->Rax
+	mov	248($context),%rbx	# pull context->Rip
+
+	lea	.Lbody(%rip),%r10
+	cmp	%r10,%rbx		# context->Rip<.Lbody
+	jb	.Lin_prologue
+
+	mov	152($context),%rax	# pull context->Rsp
+
+	lea	.Lepilogue(%rip),%r10
+	cmp	%r10,%rbx		# context->Rip>=.Lepilogue
+	jae	.Lin_prologue
+
+	mov	40(%rax),%r15
+	mov	48(%rax),%r14
+	mov	56(%rax),%r13
+	mov	64(%rax),%r12
+	mov	72(%rax),%rbp
+	mov	80(%rax),%rbx
+	lea	88(%rax),%rax
+
+	mov	%rbx,144($context)	# restore context->Rbx
+	mov	%rbp,160($context)	# restore context->Rbp
+	mov	%r12,216($context)	# restore context->R12
+	mov	%r13,224($context)	# restore context->R12
+	mov	%r14,232($context)	# restore context->R14
+	mov	%r15,240($context)	# restore context->R15
+
+.Lin_prologue:
+	mov	8(%rax),%rdi
+	mov	16(%rax),%rsi
+	mov	%rax,152($context)	# restore context->Rsp
+	mov	%rsi,168($context)	# restore context->Rsi
+	mov	%rdi,176($context)	# restore context->Rdi
+
+	mov	40($disp),%rdi		# disp->ContextRecord
+	mov	$context,%rsi		# context
+	mov	\$154,%ecx		# sizeof(CONTEXT)
+	.long	0xa548f3fc		# cld; rep movsq
+
+	mov	$disp,%rsi
+	xor	%rcx,%rcx		# arg1, UNW_FLAG_NHANDLER
+	mov	8(%rsi),%rdx		# arg2, disp->ImageBase
+	mov	0(%rsi),%r8		# arg3, disp->ControlPc
+	mov	16(%rsi),%r9		# arg4, disp->FunctionEntry
+	mov	40(%rsi),%r10		# disp->ContextRecord
+	lea	56(%rsi),%r11		# &disp->HandlerData
+	lea	24(%rsi),%r12		# &disp->EstablisherFrame
+	mov	%r10,32(%rsp)		# arg5
+	mov	%r11,40(%rsp)		# arg6
+	mov	%r12,48(%rsp)		# arg7
+	mov	%rcx,56(%rsp)		# arg8, (NULL)
+	call	*__imp_RtlVirtualUnwind(%rip)
+
+	mov	\$1,%eax		# ExceptionContinueSearch
+	add	\$64,%rsp
+	popfq
+	pop	%r15
+	pop	%r14
+	pop	%r13
+	pop	%r12
+	pop	%rbp
+	pop	%rbx
+	pop	%rdi
+	pop	%rsi
+	ret
+.size	se_handler,.-se_handler
+
+.section	.pdata
+.align	4
+	.rva	.LSEH_begin_$func
+	.rva	.LSEH_end_$func
+	.rva	.LSEH_info_$func
+
+.section	.xdata
+.align	8
+.LSEH_info_$func:
+	.byte	9,0,0,0
+	.rva	se_handler
+___
+}
+
+sub reg_part {
+my ($reg,$conv)=@_;
+    if ($reg =~ /%r[0-9]+/)     { $reg .= $conv; }
+    elsif ($conv eq "b")        { $reg =~ s/%[er]([^x]+)x?/%$1l/;       }
+    elsif ($conv eq "w")        { $reg =~ s/%[er](.+)/%$1/;             }
+    elsif ($conv eq "d")        { $reg =~ s/%[er](.+)/%e$1/;            }
+    return $reg;
+}
+
+$code =~ s/(%[a-z0-9]+)#([bwd])/reg_part($1,$2)/gem;
+$code =~ s/\`([^\`]*)\`/eval $1/gem;
+$code =~ s/pinsrw\s+\$0,/movd	/gm;
+
+$code =~ s/#md5#//gm	if ($md5);
+$code =~ s/#rc4#//gm	if ($rc4);
+
+print $code;
+
+close STDOUT;