resolve conflicts, fix local changes

7 files changed, 858 insertions, 2397 deletions

diff --git a/lib/libcrypto/perlasm/alpha.pl b/lib/libcrypto/perlasm/alpha.pl
deleted file mode 100644
index 3dac571743c..00000000000
--- a/lib/libcrypto/perlasm/alpha.pl
+++ /dev/null
@@ -1,434 +0,0 @@
-#!/usr/local/bin/perl
-
-package alpha;
-use Carp qw(croak cluck);
-
-$label="100";
-
-$n_debug=0;
-$smear_regs=1;
-$reg_alloc=1;
-
-$align="3";
-$com_start="#";
-
-sub main'asm_init_output { @out=(); }
-sub main'asm_get_output { return(@out); }
-sub main'get_labels { return(@labels); }
-sub main'external_label { push(@labels,@_); }
-
-# General registers
-
-%regs=(	'r0',	'$0',
-	'r1',	'$1',
-	'r2',	'$2',
-	'r3',	'$3',
-	'r4',	'$4',
-	'r5',	'$5',
-	'r6',	'$6',
-	'r7',	'$7',
-	'r8',	'$8',
-	'r9',	'$22',
-	'r10',	'$23',
-	'r11',	'$24',
-	'r12',	'$25',
-	'r13',	'$27',
-	'r14',	'$28',
-	'r15',	'$21', # argc == 5
-	'r16',	'$20', # argc == 4
-	'r17',	'$19', # argc == 3
-	'r18',	'$18', # argc == 2
-	'r19',	'$17', # argc == 1
-	'r20',	'$16', # argc == 0
-	'r21',	'$9',  # save 0
-	'r22',	'$10', # save 1
-	'r23',	'$11', # save 2
-	'r24',	'$12', # save 3
-	'r25',	'$13', # save 4
-	'r26',	'$14', # save 5
-
-	'a0',	'$16',
-	'a1',	'$17',
-	'a2',	'$18',
-	'a3',	'$19',
-	'a4',	'$20',
-	'a5',	'$21',
-
-	's0',	'$9',
-	's1',	'$10',
-	's2',	'$11',
-	's3',	'$12',
-	's4',	'$13',
-	's5',	'$14',
-	'zero',	'$31',
-	'sp',	'$30',
-	);
-
-$main'reg_s0="r21";
-$main'reg_s1="r22";
-$main'reg_s2="r23";
-$main'reg_s3="r24";
-$main'reg_s4="r25";
-$main'reg_s5="r26";
-
-@reg=(  '$0', '$1' ,'$2' ,'$3' ,'$4' ,'$5' ,'$6' ,'$7' ,'$8',
-	'$22','$23','$24','$25','$20','$21','$27','$28');
-
-
-sub main'sub	{ &out3("subq",@_); }
-sub main'add	{ &out3("addq",@_); }
-sub main'mov	{ &out3("bis",$_[0],$_[0],$_[1]); }
-sub main'or	{ &out3("bis",@_); }
-sub main'bis	{ &out3("bis",@_); }
-sub main'br	{ &out1("br",@_); }
-sub main'ld	{ &out2("ldq",@_); }
-sub main'st	{ &out2("stq",@_); }
-sub main'cmpult	{ &out3("cmpult",@_); }
-sub main'cmplt	{ &out3("cmplt",@_); }
-sub main'bgt	{ &out2("bgt",@_); }
-sub main'ble	{ &out2("ble",@_); }
-sub main'blt	{ &out2("blt",@_); }
-sub main'mul	{ &out3("mulq",@_); }
-sub main'muh	{ &out3("umulh",@_); }
-
-$main'QWS=8;
-
-sub main'asm_add
-	{
-	push(@out,@_);
-	}
-
-sub main'asm_finish
-	{
-	&main'file_end();
-	print &main'asm_get_output();
-	}
-
-sub main'asm_init
-	{
-	($type,$fn)=@_;
-	$filename=$fn;
-
-	&main'asm_init_output();
-	&main'comment("Don't even think of reading this code");
-	&main'comment("It was automatically generated by $filename");
-	&main'comment("Which is a perl program used to generate the alpha assember.");
-	&main'comment("eric <eay\@cryptsoft.com>");
-	&main'comment("");
-
-	$filename =~ s/\.pl$//;
-	&main'file($filename);
-	}
-
-sub conv
-	{
-	local($r)=@_;
-	local($v);
-
-	return($regs{$r}) if defined($regs{$r});
-	return($r);
-	}
-
-sub main'QWPw
-	{
-	local($off,$reg)=@_;
-
-	return(&main'QWP($off*8,$reg));
-	}
-
-sub main'QWP
-	{
-	local($off,$reg)=@_;
-
-	$ret="$off(".&conv($reg).")";
-	return($ret);
-	}
-
-sub out3
-	{
-	local($name,$p1,$p2,$p3)=@_;
-
-	$p1=&conv($p1);
-	$p2=&conv($p2);
-	$p3=&conv($p3);
-	push(@out,"\t$name\t");
-	$l=length($p1)+1;
-	push(@out,$p1.",");
-	$ll=3-($l+9)/8;
-	$tmp1=sprintf("\t" x $ll);
-	push(@out,$tmp1);
-
-	$l=length($p2)+1;
-	push(@out,$p2.",");
-	$ll=3-($l+9)/8;
-	$tmp1=sprintf("\t" x $ll);
-	push(@out,$tmp1);
-
-	push(@out,&conv($p3)."\n");
-	}
-
-sub out2
-	{
-	local($name,$p1,$p2,$p3)=@_;
-
-	$p1=&conv($p1);
-	$p2=&conv($p2);
-	push(@out,"\t$name\t");
-	$l=length($p1)+1;
-	push(@out,$p1.",");
-	$ll=3-($l+9)/8;
-	$tmp1=sprintf("\t" x $ll);
-	push(@out,$tmp1);
-
-	push(@out,&conv($p2)."\n");
-	}
-
-sub out1
-	{
-	local($name,$p1)=@_;
-
-	$p1=&conv($p1);
-	push(@out,"\t$name\t".$p1."\n");
-	}
-
-sub out0
-	{
-	push(@out,"\t$_[0]\n");
-	}
-
-sub main'file
-	{
-	local($file)=@_;
-
-	local($tmp)=<<"EOF";
- # DEC Alpha assember
- # Generated from perl scripts contains in SSLeay
-	.file	1 "$file.s"
-	.set noat
-EOF
-	push(@out,$tmp);
-	}
-
-sub main'function_begin
-	{
-	local($func)=@_;
-
-print STDERR "$func\n";
-	local($tmp)=<<"EOF";
-	.text
-	.align $align
-	.globl $func
-	.ent $func
-${func}:
-${func}..ng:
-	.frame \$30,0,\$26,0
-	.prologue 0
-EOF
-	push(@out,$tmp);
-	$stack=0;
-	}
-
-sub main'function_end
-	{
-	local($func)=@_;
-
-	local($tmp)=<<"EOF";
-	ret	\$31,(\$26),1
-	.end $func
-EOF
-	push(@out,$tmp);
-	$stack=0;
-	%label=();
-	}
-
-sub main'function_end_A
-	{
-	local($func)=@_;
-
-	local($tmp)=<<"EOF";
-	ret	\$31,(\$26),1
-EOF
-	push(@out,$tmp);
-	}
-
-sub main'function_end_B
-	{
-	local($func)=@_;
-
-	$func=$under.$func;
-
-	push(@out,"\t.end $func\n");
-	$stack=0;
-	%label=();
-	}
-
-sub main'wparam
-	{
-	local($num)=@_;
-
-	if ($num < 6)
-		{
-		$num=20-$num;
-		return("r$num");
-		}
-	else
-		{ return(&main'QWP($stack+$num*8,"sp")); }
-	}
-
-sub main'stack_push
-	{
-	local($num)=@_;
-	$stack+=$num*8;
-	&main'sub("sp",$num*8,"sp");
-	}
-
-sub main'stack_pop
-	{
-	local($num)=@_;
-	$stack-=$num*8;
-	&main'add("sp",$num*8,"sp");
-	}
-
-sub main'swtmp
-	{
-	return(&main'QWP(($_[0])*8,"sp"));
-	}
-
-# Should use swtmp, which is above sp.  Linix can trash the stack above esp
-#sub main'wtmp
-#	{
-#	local($num)=@_;
-#
-#	return(&main'QWP(-($num+1)*4,"esp","",0));
-#	}
-
-sub main'comment
-	{
-	foreach (@_)
-		{
-		if (/^\s*$/)
-			{ push(@out,"\n"); }
-		else
-			{ push(@out,"\t$com_start $_ $com_end\n"); }
-		}
-	}
-
-sub main'label
-	{
-	if (!defined($label{$_[0]}))
-		{
-		$label{$_[0]}=$label;
-		$label++;
-		}
-	return('$'.$label{$_[0]});
-	}
-
-sub main'set_label
-	{
-	if (!defined($label{$_[0]}))
-		{
-		$label{$_[0]}=$label;
-		$label++;
-		}
-#	push(@out,".align $align\n") if ($_[1] != 0);
-	push(@out,'$'."$label{$_[0]}:\n");
-	}
-
-sub main'file_end
-	{
-	}
-
-sub main'data_word
-	{
-	push(@out,"\t.long $_[0]\n");
-	}
-
-@pool_free=();
-@pool_taken=();
-$curr_num=0;
-$max=0;
-
-sub main'init_pool
-	{
-	local($args)=@_;
-	local($i);
-
-	@pool_free=();
-	for ($i=(14+(6-$args)); $i >= 0; $i--)
-		{
-		push(@pool_free,"r$i");
-		}
-	print STDERR "START :register pool:@pool_free\n";
-	$curr_num=$max=0;
-	}
-
-sub main'fin_pool
-	{
-	printf STDERR "END %2d:register pool:@pool_free\n",$max;
-	}
-
-sub main'GR
-	{
-	local($r)=@_;
-	local($i,@n,$_);
-
-	foreach (@pool_free)
-		{
-		if ($r ne $_)
-			{ push(@n,$_); }
-		else
-			{
-			$curr_num++;
-			$max=$curr_num if ($curr_num > $max);
-			}
-		}
-	@pool_free=@n;
-print STDERR "GR:@pool_free\n" if $reg_alloc;
-	return(@_);
-	}
-
-sub main'NR
-	{
-	local($num)=@_;
-	local(@ret);
-
-	$num=1 if $num == 0;
-	($#pool_free >= ($num-1)) || croak "out of registers: want $num, have @pool_free";
-	while ($num > 0)
-		{
-		push(@ret,pop @pool_free);
-		$curr_num++;
-		$max=$curr_num if ($curr_num > $max);
-		$num--
-		}
-	print STDERR "nr @ret\n" if $n_debug;
-print STDERR "NR:@pool_free\n" if $reg_alloc;
-	return(@ret);
-
-	}
-
-sub main'FR
-	{
-	local(@r)=@_;
-	local(@a,$v,$w);
-
-	print STDERR "fr @r\n" if $n_debug;
-#	cluck "fr @r";
-	for $w (@pool_free)
-		{
-		foreach $v (@r)
-			{
-			croak "double register free of $v (@pool_free)" if $w eq $v;
-			}
-		}
-	foreach $v (@r)
-		{
-		croak "bad argument to FR" if ($v !~ /^r\d+$/);
-		if ($smear_regs)
-			{ unshift(@pool_free,$v); }
-		else	{ push(@pool_free,$v); }
-		$curr_num--;
-		}
-print STDERR "FR:@pool_free\n" if $reg_alloc;
-	}
-1;
diff --git a/lib/libcrypto/perlasm/x86_64-xlate.pl b/lib/libcrypto/perlasm/x86_64-xlate.pl
index 74153b017d4..8153a92a7ba 100755
--- a/lib/libcrypto/perlasm/x86_64-xlate.pl
+++ b/lib/libcrypto/perlasm/x86_64-xlate.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/env perl
 
-# Ascetic x86_64 AT&T to MASM assembler translator by <appro>.
+# Ascetic x86_64 AT&T to MASM/NASM assembler translator by <appro>.
 #
 # Why AT&T to MASM and not vice versa? Several reasons. Because AT&T
 # format is way easier to parse. Because it's simpler to "gear" from
@@ -20,12 +20,11 @@
 # Currently recognized limitations:
 #
 # - can't use multiple ops per line;
-# - indirect calls and jumps are not supported;
 #
 # Dual-ABI styling rules.
 #
-# 1. Adhere to Unix register and stack layout [see the end for
-#    explanation].
+# 1. Adhere to Unix register and stack layout [see cross-reference
+#    ABI "card" at the end for explanation].
 # 2. Forget about "red zone," stick to more traditional blended
 #    stack frame allocation. If volatile storage is actually required
 #    that is. If not, just leave the stack as is.
@@ -42,21 +41,26 @@
 # 6. Don't use [or hand-code with .byte] "rep ret." "ret" mnemonic is
 #    required to identify the spots, where to inject Win64 epilogue!
 #    But on the pros, it's then prefixed with rep automatically:-)
-# 7. Due to MASM limitations [and certain general counter-intuitivity
-#    of ip-relative addressing] generation of position-independent
-#    code is assisted by synthetic directive, .picmeup, which puts
-#    address of the *next* instruction into target register.
+# 7. Stick to explicit ip-relative addressing. If you have to use
+#    GOTPCREL addressing, stick to mov symbol@GOTPCREL(%rip),%r??.
+#    Both are recognized and translated to proper Win64 addressing
+#    modes. To support legacy code a synthetic directive, .picmeup,
+#    is implemented. It puts address of the *next* instruction into
+#    target register, e.g.:
 #
-#    Example 1:
 #		.picmeup	%rax
 #		lea		.Label-.(%rax),%rax
-#    Example 2:
-#		.picmeup	%rcx
-#	.Lpic_point:
-#		...
-#		lea		.Label-.Lpic_point(%rcx),%rbp
-
-my $output = shift;
+#
+# 8. In order to provide for structured exception handling unified
+#    Win64 prologue copies %rsp value to %rax. For further details
+#    see SEH paragraph at the end.
+# 9. .init segment is allowed to contain calls to functions only.
+# a. If function accepts more than 4 arguments *and* >4th argument
+#    is declared as non 64-bit value, do clear its upper part.
+
+my $flavour = shift;
+my $output  = shift;
+if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
 
 { my ($stddev,$stdino,@junk)=stat(STDOUT);
   my ($outdev,$outino,@junk)=stat($output);
@@ -65,13 +69,40 @@ my $output = shift;
 	if ($stddev!=$outdev || $stdino!=$outino);
 }
 
+my $gas=1;	$gas=0 if ($output =~ /\.asm$/);
+my $elf=1;	$elf=0 if (!$gas);
+my $win64=0;
+my $prefix="";
+my $decor=".L";
+
 my $masmref=8 + 50727*2**-32;	# 8.00.50727 shipped with VS2005
-my $masm=$masmref if ($output =~ /\.asm/);
-if ($masm && `ml64 2>&1` =~ m/Version ([0-9]+)\.([0-9]+)(\.([0-9]+))?/)
-{   $masm=$1 + $2*2**-16 + $4*2**-32;   }
+my $masm=0;
+my $PTR=" PTR";
+
+my $nasmref=2.03;
+my $nasm=0;
+
+if    ($flavour eq "mingw64")	{ $gas=1; $elf=0; $win64=1;
+				  $prefix=`echo __USER_LABEL_PREFIX__ | $ENV{CC} -E -P -`;
+				  chomp($prefix);
+				}
+elsif ($flavour eq "macosx")	{ $gas=1; $elf=0; $prefix="_"; $decor="L\$"; }
+elsif ($flavour eq "masm")	{ $gas=0; $elf=0; $masm=$masmref; $win64=1; $decor="\$L\$"; }
+elsif ($flavour eq "nasm")	{ $gas=0; $elf=0; $nasm=$nasmref; $win64=1; $decor="\$L\$"; $PTR=""; }
+elsif (!$gas)
+{   if ($ENV{ASM} =~ m/nasm/ && `nasm -v` =~ m/version ([0-9]+)\.([0-9]+)/i)
+    {	$nasm = $1 + $2*0.01; $PTR="";  }
+    elsif (`ml64 2>&1` =~ m/Version ([0-9]+)\.([0-9]+)(\.([0-9]+))?/)
+    {	$masm = $1 + $2*2**-16 + $4*2**-32;   }
+    die "no assembler found on %PATH" if (!($nasm || $masm));
+    $win64=1;
+    $elf=0;
+    $decor="\$L\$";
+}
 
 my $current_segment;
 my $current_function;
+my %globals;
 
 { package opcode;	# pick up opcodes
     sub re {
@@ -88,8 +119,10 @@ my $current_function;
 	    if ($self->{op} =~ /^(movz)b.*/) {	# movz is pain...
 		$self->{op} = $1;
 		$self->{sz} = "b";
-	    } elsif ($self->{op} =~ /call/) {
-		$self->{sz} = ""
+	    } elsif ($self->{op} =~ /call|jmp/) {
+		$self->{sz} = "";
+	    } elsif ($self->{op} =~ /^p/ && $' !~ /^(ush|op)/) { # SSEn
+		$self->{sz} = "";
 	    } elsif ($self->{op} =~ /([a-z]{3,})([qlwb])$/) {
 		$self->{op} = $1;
 		$self->{sz} = $2;
@@ -105,13 +138,20 @@ my $current_function;
     }
     sub out {
 	my $self = shift;
-	if (!$masm) {
+	if ($gas) {
 	    if ($self->{op} eq "movz") {	# movz is pain...
 		sprintf "%s%s%s",$self->{op},$self->{sz},shift;
 	    } elsif ($self->{op} =~ /^set/) { 
 		"$self->{op}";
 	    } elsif ($self->{op} eq "ret") {
-	    	".byte	0xf3,0xc3";
+		my $epilogue = "";
+		if ($win64 && $current_function->{abi} eq "svr4") {
+		    $epilogue = "movq	8(%rsp),%rdi\n\t" .
+				"movq	16(%rsp),%rsi\n\t";
+		}
+	    	$epilogue . ".byte	0xf3,0xc3";
+	    } elsif ($self->{op} eq "call" && !$elf && $current_segment eq ".init") {
+		".p2align\t3\n\t.quad";
 	    } else {
 		"$self->{op}$self->{sz}";
 	    }
@@ -119,15 +159,25 @@ my $current_function;
 	    $self->{op} =~ s/^movz/movzx/;
 	    if ($self->{op} eq "ret") {
 		$self->{op} = "";
-		if ($current_function->{abi} eq "svr4") {
-		    $self->{op} = "mov	rdi,QWORD PTR 8[rsp]\t;WIN64 epilogue\n\t".
-				  "mov	rsi,QWORD PTR 16[rsp]\n\t";
+		if ($win64 && $current_function->{abi} eq "svr4") {
+		    $self->{op} = "mov	rdi,QWORD${PTR}[8+rsp]\t;WIN64 epilogue\n\t".
+				  "mov	rsi,QWORD${PTR}[16+rsp]\n\t";
 	    	}
 		$self->{op} .= "DB\t0F3h,0C3h\t\t;repret";
-	    }
+	    } elsif ($self->{op} =~ /^(pop|push)f/) {
+		$self->{op} .= $self->{sz};
+	    } elsif ($self->{op} eq "call" && $current_segment eq ".CRT\$XCU") {
+		$self->{op} = "ALIGN\t8\n\tDQ";
+	    } 
 	    $self->{op};
 	}
     }
+    sub mnemonic {
+	my $self=shift;
+	my $op=shift;
+	$self->{op}=$op if (defined($op));
+	$self->{op};
+    }
 }
 { package const;	# pick up constants, which start with $
     sub re {
@@ -145,14 +195,15 @@ my $current_function;
     sub out {
     	my $self = shift;
 
-	if (!$masm) {
+	if ($gas) {
 	    # Solaris /usr/ccs/bin/as can't handle multiplications
 	    # in $self->{value}
-	    $self->{value} =~ s/(?<![0-9a-f])(0[x0-9a-f]+)/oct($1)/egi;
+	    $self->{value} =~ s/(?<![\w\$\.])(0x?[0-9a-f]+)/oct($1)/egi;
 	    $self->{value} =~ s/([0-9]+\s*[\*\/\%]\s*[0-9]+)/eval($1)/eg;
 	    sprintf "\$%s",$self->{value};
 	} else {
-	    $self->{value} =~ s/0x([0-9a-f]+)/0$1h/ig;
+	    $self->{value} =~ s/(0b[0-1]+)/oct($1)/eig;
+	    $self->{value} =~ s/0x([0-9a-f]+)/0$1h/ig if ($masm);
 	    sprintf "%s",$self->{value};
 	}
     }
@@ -163,14 +214,20 @@ my $current_function;
 	local	*line = shift;
 	undef	$ret;
 
-	if ($line =~ /^([^\(,]*)\(([%\w,]+)\)/ &&
+	# optional * ---vvv--- appears in indirect jmp/call
+	if ($line =~ /^(\*?)([^\(,]*)\(([%\w,]+)\)/ &&
 	    !($line =~ /^PIC_(GOT|PLT)/)) {
-	    $self->{label} = $1;
-	    ($self->{base},$self->{index},$self->{scale})=split(/,/,$2);
+	    $self->{asterisk} = $1;
+	    $self->{label} = $2;
+	    ($self->{base},$self->{index},$self->{scale})=split(/,/,$3);
 	    $self->{scale} = 1 if (!defined($self->{scale}));
 	    $ret = $self;
 	    $line = substr($line,@+[0]); $line =~ s/^\s+//;
 
+	    if ($win64 && $self->{label} =~ s/\@GOTPCREL//) {
+		die if (opcode->mnemonic() ne "mov");
+		opcode->mnemonic("lea");
+	    }
 	    $self->{base}  =~ s/^%//;
 	    $self->{index} =~ s/^%// if (defined($self->{index}));
 	}
@@ -181,42 +238,50 @@ my $current_function;
     	my $self = shift;
 	my $sz = shift;
 
+	$self->{label} =~ s/([_a-z][_a-z0-9]*)/$globals{$1} or $1/gei;
+	$self->{label} =~ s/\.L/$decor/g;
+
 	# Silently convert all EAs to 64-bit. This is required for
 	# elder GNU assembler and results in more compact code,
 	# *but* most importantly AES module depends on this feature!
 	$self->{index} =~ s/^[er](.?[0-9xpi])[d]?$/r\1/;
 	$self->{base}  =~ s/^[er](.?[0-9xpi])[d]?$/r\1/;
 
-	if (!$masm) {
+	if ($gas) {
 	    # Solaris /usr/ccs/bin/as can't handle multiplications
-	    # in $self->{label}
-	    $self->{label} =~ s/(?<![0-9a-f])(0[x0-9a-f]+)/oct($1)/egi;
+	    # in $self->{label}, new gas requires sign extension...
+	    use integer;
+	    $self->{label} =~ s/(?<![\w\$\.])(0x?[0-9a-f]+)/oct($1)/egi;
 	    $self->{label} =~ s/([0-9]+\s*[\*\/\%]\s*[0-9]+)/eval($1)/eg;
+	    $self->{label} =~ s/([0-9]+)/$1<<32>>32/eg;
+	    $self->{label} =~ s/^___imp_/__imp__/   if ($flavour eq "mingw64");
 
 	    if (defined($self->{index})) {
-		sprintf "%s(%%%s,%%%s,%d)",
+		sprintf "%s%s(%%%s,%%%s,%d)",$self->{asterisk},
 					$self->{label},$self->{base},
 					$self->{index},$self->{scale};
 	    } else {
-		sprintf "%s(%%%s)",	$self->{label},$self->{base};
+		sprintf "%s%s(%%%s)",	$self->{asterisk},$self->{label},$self->{base};
 	    }
 	} else {
-	    %szmap = ( b=>"BYTE", w=>"WORD", l=>"DWORD", q=>"QWORD" );
+	    %szmap = ( b=>"BYTE$PTR", w=>"WORD$PTR", l=>"DWORD$PTR", q=>"QWORD$PTR" );
 
 	    $self->{label} =~ s/\./\$/g;
-	    $self->{label} =~ s/0x([0-9a-f]+)/0$1h/ig;
+	    $self->{label} =~ s/(?<![\w\$\.])0x([0-9a-f]+)/0$1h/ig;
 	    $self->{label} = "($self->{label})" if ($self->{label} =~ /[\*\+\-\/]/);
+	    $sz="q" if ($self->{asterisk});
 
 	    if (defined($self->{index})) {
-		sprintf "%s PTR %s[%s*%d+%s]",$szmap{$sz},
-					$self->{label},
+		sprintf "%s[%s%s*%d+%s]",$szmap{$sz},
+					$self->{label}?"$self->{label}+":"",
 					$self->{index},$self->{scale},
 					$self->{base};
 	    } elsif ($self->{base} eq "rip") {
-		sprintf "%s PTR %s",$szmap{$sz},$self->{label};
+		sprintf "%s[%s]",$szmap{$sz},$self->{label};
 	    } else {
-		sprintf "%s PTR %s[%s]",$szmap{$sz},
-					$self->{label},$self->{base};
+		sprintf "%s[%s%s]",$szmap{$sz},
+					$self->{label}?"$self->{label}+":"",
+					$self->{base};
 	    }
 	}
     }
@@ -228,9 +293,11 @@ my $current_function;
 	local	*line = shift;
 	undef	$ret;
 
-	if ($line =~ /^%(\w+)/) {
+	# optional * ---vvv--- appears in indirect jmp/call
+	if ($line =~ /^(\*?)%(\w+)/) {
 	    bless $self,$class;
-	    $self->{value} = $1;
+	    $self->{asterisk} = $1;
+	    $self->{value} = $2;
 	    $ret = $self;
 	    $line = substr($line,@+[0]); $line =~ s/^\s+//;
 	}
@@ -253,7 +320,8 @@ my $current_function;
     }
     sub out {
     	my $self = shift;
-	sprintf $masm?"%s":"%%%s",$self->{value};
+	if ($gas)	{ sprintf "%s%%%s",$self->{asterisk},$self->{value}; }
+	else		{ $self->{value}; }
     }
 }
 { package label;	# pick up labels, which end with :
@@ -262,37 +330,63 @@ my $current_function;
 	local	*line = shift;
 	undef	$ret;
 
-	if ($line =~ /(^[\.\w]+\:)/) {
+	if ($line =~ /(^[\.\w]+)\:/) {
 	    $self->{value} = $1;
 	    $ret = $self;
 	    $line = substr($line,@+[0]); $line =~ s/^\s+//;
 
-	    $self->{value} =~ s/\.L/\$L/ if ($masm);
+	    $self->{value} =~ s/^\.L/$decor/;
 	}
 	$ret;
     }
     sub out {
 	my $self = shift;
 
-	if (!$masm) {
-	    $self->{value};
-	} elsif ($self->{value} ne "$current_function->{name}:") {
-	    $self->{value};
-	} elsif ($current_function->{abi} eq "svr4") {
-	    my $func =	"$current_function->{name}	PROC\n".
-			"	mov	QWORD PTR 8[rsp],rdi\t;WIN64 prologue\n".
-			"	mov	QWORD PTR 16[rsp],rsi\n";
+	if ($gas) {
+	    my $func = ($globals{$self->{value}} or $self->{value}) . ":";
+	    if ($win64	&&
+			$current_function->{name} eq $self->{value} &&
+			$current_function->{abi} eq "svr4") {
+		$func .= "\n";
+		$func .= "	movq	%rdi,8(%rsp)\n";
+		$func .= "	movq	%rsi,16(%rsp)\n";
+		$func .= "	movq	%rsp,%rax\n";
+		$func .= "${decor}SEH_begin_$current_function->{name}:\n";
+		my $narg = $current_function->{narg};
+		$narg=6 if (!defined($narg));
+		$func .= "	movq	%rcx,%rdi\n" if ($narg>0);
+		$func .= "	movq	%rdx,%rsi\n" if ($narg>1);
+		$func .= "	movq	%r8,%rdx\n"  if ($narg>2);
+		$func .= "	movq	%r9,%rcx\n"  if ($narg>3);
+		$func .= "	movq	40(%rsp),%r8\n" if ($narg>4);
+		$func .= "	movq	48(%rsp),%r9\n" if ($narg>5);
+	    }
+	    $func;
+	} elsif ($self->{value} ne "$current_function->{name}") {
+	    $self->{value} .= ":" if ($masm && $ret!~m/^\$/);
+	    $self->{value} . ":";
+	} elsif ($win64 && $current_function->{abi} eq "svr4") {
+	    my $func =	"$current_function->{name}" .
+			($nasm ? ":" : "\tPROC $current_function->{scope}") .
+			"\n";
+	    $func .= "	mov	QWORD${PTR}[8+rsp],rdi\t;WIN64 prologue\n";
+	    $func .= "	mov	QWORD${PTR}[16+rsp],rsi\n";
+	    $func .= "	mov	rax,rsp\n";
+	    $func .= "${decor}SEH_begin_$current_function->{name}:";
+	    $func .= ":" if ($masm);
+	    $func .= "\n";
 	    my $narg = $current_function->{narg};
 	    $narg=6 if (!defined($narg));
 	    $func .= "	mov	rdi,rcx\n" if ($narg>0);
 	    $func .= "	mov	rsi,rdx\n" if ($narg>1);
 	    $func .= "	mov	rdx,r8\n"  if ($narg>2);
 	    $func .= "	mov	rcx,r9\n"  if ($narg>3);
-	    $func .= "	mov	r8,QWORD PTR 40[rsp]\n" if ($narg>4);
-	    $func .= "	mov	r9,QWORD PTR 48[rsp]\n" if ($narg>5);
+	    $func .= "	mov	r8,QWORD${PTR}[40+rsp]\n" if ($narg>4);
+	    $func .= "	mov	r9,QWORD${PTR}[48+rsp]\n" if ($narg>5);
 	    $func .= "\n";
 	} else {
-	   "$current_function->{name}	PROC";
+	   "$current_function->{name}".
+			($nasm ? ":" : "\tPROC $current_function->{scope}");
 	}
     }
 }
@@ -307,13 +401,19 @@ my $current_function;
 	    $ret = $self;
 	    $line = substr($line,@+[0]); $line =~ s/^\s+//;
 
-	    $self->{value} =~ s/\.L/\$L/g if ($masm);
+	    $self->{value} =~ s/\@PLT// if (!$elf);
+	    $self->{value} =~ s/([_a-z][_a-z0-9]*)/$globals{$1} or $1/gei;
+	    $self->{value} =~ s/\.L/$decor/g;
 	}
 	$ret;
     }
     sub out {
 	my $self = shift;
-	$self->{value};
+	if ($nasm && opcode->mnemonic()=~m/^j/) {
+	    "NEAR ".$self->{value};
+	} else {
+	    $self->{value};
+	}
     }
 }
 { package directive;	# pick up directives, which start with .
@@ -333,89 +433,181 @@ my $current_function;
 			"%r14"=>0x01358d4c,	"%r15"=>0x013d8d4c	);
 
 	if ($line =~ /^\s*(\.\w+)/) {
-	    if (!$masm) {
-		$self->{value} = $1;
-		$line =~ s/\@abi\-omnipotent/\@function/;
-		$line =~ s/\@function.*/\@function/;
-		if ($line =~ /\.picmeup\s+(%r[\w]+)/i) {
-		    $self->{value} = sprintf "\t.long\t0x%x,0x90000000",$opcode{$1};
-		} elsif ($line =~ /\.asciz\s+"(.*)"$/) {
-		    $self->{value} = ".byte\t".join(",",unpack("C*",$1),0);
-		} elsif ($line =~ /\.extern/) {
-		    $self->{value} = ""; # swallow extern
-		} else {
-		    $self->{value} = $line;
-		}
-		$line = "";
-		return $self;
-	    }
-
 	    $dir = $1;
 	    $ret = $self;
 	    undef $self->{value};
 	    $line = substr($line,@+[0]); $line =~ s/^\s+//;
+
 	    SWITCH: for ($dir) {
-		/\.(text)/
-			    && do { my $v=undef;
-				    $v="$current_segment\tENDS\n" if ($current_segment);
-				    $current_segment = "_$1\$";
-				    $current_segment =~ tr/[a-z]/[A-Z]/;
-				    $v.="$current_segment\tSEGMENT ";
-				    $v.=$masm>=$masmref ? "ALIGN(64)" : "PAGE";
-				    $v.=" 'CODE'";
-				    $self->{value} = $v;
+		/\.picmeup/ && do { if ($line =~ /(%r[\w]+)/i) {
+			    		$dir="\t.long";
+					$line=sprintf "0x%x,0x90000000",$opcode{$1};
+				    }
+				    last;
+				  };
+		/\.global|\.globl|\.extern/
+			    && do { $globals{$line} = $prefix . $line;
+				    $line = $globals{$line} if ($prefix);
 				    last;
 				  };
-		/\.extern/  && do { $self->{value} = "EXTRN\t".$line.":BYTE"; last;  };
-		/\.globl/   && do { $self->{value} = "PUBLIC\t".$line; last; };
 		/\.type/    && do { ($sym,$type,$narg) = split(',',$line);
 				    if ($type eq "\@function") {
 					undef $current_function;
 					$current_function->{name} = $sym;
 					$current_function->{abi}  = "svr4";
 					$current_function->{narg} = $narg;
+					$current_function->{scope} = defined($globals{$sym})?"PUBLIC":"PRIVATE";
 				    } elsif ($type eq "\@abi-omnipotent") {
 					undef $current_function;
 					$current_function->{name} = $sym;
+					$current_function->{scope} = defined($globals{$sym})?"PUBLIC":"PRIVATE";
+				    }
+				    $line =~ s/\@abi\-omnipotent/\@function/;
+				    $line =~ s/\@function.*/\@function/;
+				    last;
+				  };
+		/\.asciz/   && do { if ($line =~ /^"(.*)"$/) {
+					$dir  = ".byte";
+					$line = join(",",unpack("C*",$1),0);
 				    }
 				    last;
 				  };
+		/\.rva|\.long|\.quad/
+			    && do { $line =~ s/([_a-z][_a-z0-9]*)/$globals{$1} or $1/gei;
+				    $line =~ s/\.L/$decor/g;
+				    last;
+				  };
+	    }
+
+	    if ($gas) {
+		$self->{value} = $dir . "\t" . $line;
+
+		if ($dir =~ /\.extern/) {
+		    $self->{value} = ""; # swallow extern
+		} elsif (!$elf && $dir =~ /\.type/) {
+		    $self->{value} = "";
+		    $self->{value} = ".def\t" . ($globals{$1} or $1) . ";\t" .
+				(defined($globals{$1})?".scl 2;":".scl 3;") .
+				"\t.type 32;\t.endef"
+				if ($win64 && $line =~ /([^,]+),\@function/);
+		} elsif (!$elf && $dir =~ /\.size/) {
+		    $self->{value} = "";
+		    if (defined($current_function)) {
+			$self->{value} .= "${decor}SEH_end_$current_function->{name}:"
+				if ($win64 && $current_function->{abi} eq "svr4");
+			undef $current_function;
+		    }
+		} elsif (!$elf && $dir =~ /\.align/) {
+		    $self->{value} = ".p2align\t" . (log($line)/log(2));
+		} elsif ($dir eq ".section") {
+		    $current_segment=$line;
+		    if (!$elf && $current_segment eq ".init") {
+			if	($flavour eq "macosx")	{ $self->{value} = ".mod_init_func"; }
+			elsif	($flavour eq "mingw64")	{ $self->{value} = ".section\t.ctors"; }
+		    }
+		} elsif ($dir =~ /\.(text|data)/) {
+		    $current_segment=".$1";
+		}
+		$line = "";
+		return $self;
+	    }
+
+	    # non-gas case or nasm/masm
+	    SWITCH: for ($dir) {
+		/\.text/    && do { my $v=undef;
+				    if ($nasm) {
+					$v="section	.text code align=64\n";
+				    } else {
+					$v="$current_segment\tENDS\n" if ($current_segment);
+					$current_segment = ".text\$";
+					$v.="$current_segment\tSEGMENT ";
+					$v.=$masm>=$masmref ? "ALIGN(64)" : "PAGE";
+					$v.=" 'CODE'";
+				    }
+				    $self->{value} = $v;
+				    last;
+				  };
+		/\.data/    && do { my $v=undef;
+				    if ($nasm) {
+					$v="section	.data data align=8\n";
+				    } else {
+					$v="$current_segment\tENDS\n" if ($current_segment);
+					$current_segment = "_DATA";
+					$v.="$current_segment\tSEGMENT";
+				    }
+				    $self->{value} = $v;
+				    last;
+				  };
+		/\.section/ && do { my $v=undef;
+				    $line =~ s/([^,]*).*/$1/;
+				    $line = ".CRT\$XCU" if ($line eq ".init");
+				    if ($nasm) {
+					$v="section	$line";
+					if ($line=~/\.([px])data/) {
+					    $v.=" rdata align=";
+					    $v.=$1 eq "p"? 4 : 8;
+					}
+				    } else {
+					$v="$current_segment\tENDS\n" if ($current_segment);
+					$v.="$line\tSEGMENT";
+					if ($line=~/\.([px])data/) {
+					    $v.=" READONLY";
+					    $v.=" ALIGN(".($1 eq "p" ? 4 : 8).")" if ($masm>=$masmref);
+					}
+				    }
+				    $current_segment = $line;
+				    $self->{value} = $v;
+				    last;
+				  };
+		/\.extern/  && do { $self->{value}  = "EXTERN\t".$line;
+				    $self->{value} .= ":NEAR" if ($masm);
+				    last;
+				  };
+		/\.globl|.global/
+			    && do { $self->{value}  = $masm?"PUBLIC":"global";
+				    $self->{value} .= "\t".$line;
+				    last;
+				  };
 		/\.size/    && do { if (defined($current_function)) {
-					$self->{value}="$current_function->{name}\tENDP";
+					undef $self->{value};
+					if ($current_function->{abi} eq "svr4") {
+					    $self->{value}="${decor}SEH_end_$current_function->{name}:";
+					    $self->{value}.=":\n" if($masm);
+					}
+					$self->{value}.="$current_function->{name}\tENDP" if($masm);
 					undef $current_function;
 				    }
 				    last;
 				  };
 		/\.align/   && do { $self->{value} = "ALIGN\t".$line; last; };
-		/\.(byte|value|long|quad)/
-			    && do { my @arr = split(',',$line);
-				    my $sz  = substr($1,0,1);
+		/\.(value|long|rva|quad)/
+			    && do { my $sz  = substr($1,0,1);
+				    my @arr = split(/,\s*/,$line);
 				    my $last = pop(@arr);
 				    my $conv = sub  {	my $var=shift;
-							if ($var=~s/0x([0-9a-f]+)/0$1h/i) { $var; }
-							else { sprintf"0%Xh",$var; }
+							$var=~s/^(0b[0-1]+)/oct($1)/eig;
+							$var=~s/^0x([0-9a-f]+)/0$1h/ig if ($masm);
+							if ($sz eq "D" && ($current_segment=~/.[px]data/ || $dir eq ".rva"))
+							{ $var=~s/([_a-z\$\@][_a-z0-9\$\@]*)/$nasm?"$1 wrt ..imagebase":"imagerel $1"/egi; }
+							$var;
 						    };  
 
-				    $sz =~ tr/bvlq/BWDQ/;
+				    $sz =~ tr/bvlrq/BWDDQ/;
 				    $self->{value} = "\tD$sz\t";
 				    for (@arr) { $self->{value} .= &$conv($_).","; }
 				    $self->{value} .= &$conv($last);
 				    last;
 				  };
-		/\.picmeup/ && do { $self->{value} = sprintf"\tDD\t 0%Xh,090000000h",$opcode{$line};
-				    last;
-				  };
-		/\.asciz/   && do { if ($line =~ /^"(.*)"$/) {
-					my @str=unpack("C*",$1);
-					push @str,0;
-					while ($#str>15) {
-					    $self->{value}.="DB\t"
-						.join(",",@str[0..15])."\n";
-					    foreach (0..15) { shift @str; }
-					}
+		/\.byte/    && do { my @str=split(/,\s*/,$line);
+				    map(s/(0b[0-1]+)/oct($1)/eig,@str);
+				    map(s/0x([0-9a-f]+)/0$1h/ig,@str) if ($masm);	
+				    while ($#str>15) {
 					$self->{value}.="DB\t"
-						.join(",",@str) if (@str);
+						.join(",",@str[0..15])."\n";
+					foreach (0..15) { shift @str; }
 				    }
+				    $self->{value}.="DB\t"
+						.join(",",@str) if (@str);
 				    last;
 				  };
 	    }
@@ -432,6 +624,15 @@ my $current_function;
 
 print "#include <machine/asm.h>\n";
 
+if ($nasm) {
+    print <<___;
+default	rel
+___
+} elsif ($masm) {
+    print <<___;
+OPTION	DOTNAME
+___
+}
 while($line=<>) {
 
     chomp($line);
@@ -442,43 +643,42 @@ while($line=<>) {
 
     undef $label;
     undef $opcode;
-    undef $dst;
-    undef $src;
     undef $sz;
+    undef @args;
 
     if ($label=label->re(\$line))	{ print $label->out(); }
 
     if (directive->re(\$line)) {
 	printf "%s",directive->out();
-    } elsif ($opcode=opcode->re(\$line)) { ARGUMENT: {
-
-	if ($src=register->re(\$line))	{ opcode->size($src->size()); }
-	elsif ($src=const->re(\$line))	{ }
-	elsif ($src=ea->re(\$line))	{ }
-	elsif ($src=expr->re(\$line))	{ }
+    } elsif ($opcode=opcode->re(\$line)) { ARGUMENT: while (1) {
+	my $arg;
 
-	last ARGUMENT if ($line !~ /^,/);
+	if ($arg=register->re(\$line))	{ opcode->size($arg->size()); }
+	elsif ($arg=const->re(\$line))	{ }
+	elsif ($arg=ea->re(\$line))	{ }
+	elsif ($arg=expr->re(\$line))	{ }
+	else				{ last ARGUMENT; }
 
-	$line = substr($line,1); $line =~ s/^\s+//;
+	push @args,$arg;
 
-	if ($dst=register->re(\$line))	{ opcode->size($dst->size()); }
-	elsif ($dst=const->re(\$line))	{ }
-	elsif ($dst=ea->re(\$line))	{ }
+	last ARGUMENT if ($line !~ /^,/);
 
+	$line =~ s/^,\s*//;
 	} # ARGUMENT:
 
 	$sz=opcode->size();
 
-	if (defined($dst)) {
-	    if (!$masm) {
-		printf "\t%s\t%s,%s",	$opcode->out($dst->size()),
-					$src->out($sz),$dst->out($sz);
+	if ($#args>=0) {
+	    my $insn;
+	    if ($gas) {
+		$insn = $opcode->out($#args>=1?$args[$#args]->size():$sz);
 	    } else {
-		printf "\t%s\t%s,%s",	$opcode->out(),
-					$dst->out($sz),$src->out($sz);
+		$insn = $opcode->out();
+		$insn .= $sz if (map($_->out() =~ /x?mm/,@args));
+		@args = reverse(@args);
+		undef $sz if ($nasm && $opcode->mnemonic() eq "lea");
 	    }
-	} elsif (defined($src)) {
-	    printf "\t%s\t%s",$opcode->out(),$src->out($sz);
+	    printf "\t%s\t%s",$insn,join(",",map($_->out($sz),@args));
 	} else {
 	    printf "\t%s",$opcode->out();
 	}
@@ -487,11 +687,12 @@ while($line=<>) {
     print $line,"\n";
 }
 
-print "\n$current_segment\tENDS\nEND\n" if ($masm);
+print "\n$current_segment\tENDS\n"	if ($current_segment && $masm);
+print "END\n"				if ($masm);
 
 close STDOUT;
 
-#################################################
+#################################################
 # Cross-reference x86_64 ABI "card"
 #
 # 		Unix		Win64
@@ -555,3 +756,161 @@ close STDOUT;
 #	movq	16(%rsp),%rsi
 # endif
 #	ret
+#
+#################################################
+# Win64 SEH, Structured Exception Handling.
+#
+# Unlike on Unix systems(*) lack of Win64 stack unwinding information
+# has undesired side-effect at run-time: if an exception is raised in
+# assembler subroutine such as those in question (basically we're
+# referring to segmentation violations caused by malformed input
+# parameters), the application is briskly terminated without invoking
+# any exception handlers, most notably without generating memory dump
+# or any user notification whatsoever. This poses a problem. It's
+# possible to address it by registering custom language-specific
+# handler that would restore processor context to the state at
+# subroutine entry point and return "exception is not handled, keep
+# unwinding" code. Writing such handler can be a challenge... But it's
+# doable, though requires certain coding convention. Consider following
+# snippet:
+#
+# .type	function,@function
+# function:
+#	movq	%rsp,%rax	# copy rsp to volatile register
+#	pushq	%r15		# save non-volatile registers
+#	pushq	%rbx
+#	pushq	%rbp
+#	movq	%rsp,%r11
+#	subq	%rdi,%r11	# prepare [variable] stack frame
+#	andq	$-64,%r11
+#	movq	%rax,0(%r11)	# check for exceptions
+#	movq	%r11,%rsp	# allocate [variable] stack frame
+#	movq	%rax,0(%rsp)	# save original rsp value
+# magic_point:
+#	...
+#	movq	0(%rsp),%rcx	# pull original rsp value
+#	movq	-24(%rcx),%rbp	# restore non-volatile registers
+#	movq	-16(%rcx),%rbx
+#	movq	-8(%rcx),%r15
+#	movq	%rcx,%rsp	# restore original rsp
+#	ret
+# .size function,.-function
+#
+# The key is that up to magic_point copy of original rsp value remains
+# in chosen volatile register and no non-volatile register, except for
+# rsp, is modified. While past magic_point rsp remains constant till
+# the very end of the function. In this case custom language-specific
+# exception handler would look like this:
+#
+# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
+#		CONTEXT *context,DISPATCHER_CONTEXT *disp)
+# {	ULONG64 *rsp = (ULONG64 *)context->Rax;
+#	if (context->Rip >= magic_point)
+#	{   rsp = ((ULONG64 **)context->Rsp)[0];
+#	    context->Rbp = rsp[-3];
+#	    context->Rbx = rsp[-2];
+#	    context->R15 = rsp[-1];
+#	}
+#	context->Rsp = (ULONG64)rsp;
+#	context->Rdi = rsp[1];
+#	context->Rsi = rsp[2];
+#
+#	memcpy (disp->ContextRecord,context,sizeof(CONTEXT));
+#	RtlVirtualUnwind(UNW_FLAG_NHANDLER,disp->ImageBase,
+#		dips->ControlPc,disp->FunctionEntry,disp->ContextRecord,
+#		&disp->HandlerData,&disp->EstablisherFrame,NULL);
+#	return ExceptionContinueSearch;
+# }
+#
+# It's appropriate to implement this handler in assembler, directly in
+# function's module. In order to do that one has to know members'
+# offsets in CONTEXT and DISPATCHER_CONTEXT structures and some constant
+# values. Here they are:
+#
+#	CONTEXT.Rax				120
+#	CONTEXT.Rcx				128
+#	CONTEXT.Rdx				136
+#	CONTEXT.Rbx				144
+#	CONTEXT.Rsp				152
+#	CONTEXT.Rbp				160
+#	CONTEXT.Rsi				168
+#	CONTEXT.Rdi				176
+#	CONTEXT.R8				184
+#	CONTEXT.R9				192
+#	CONTEXT.R10				200
+#	CONTEXT.R11				208
+#	CONTEXT.R12				216
+#	CONTEXT.R13				224
+#	CONTEXT.R14				232
+#	CONTEXT.R15				240
+#	CONTEXT.Rip				248
+#	CONTEXT.Xmm6				512
+#	sizeof(CONTEXT)				1232
+#	DISPATCHER_CONTEXT.ControlPc		0
+#	DISPATCHER_CONTEXT.ImageBase		8
+#	DISPATCHER_CONTEXT.FunctionEntry	16
+#	DISPATCHER_CONTEXT.EstablisherFrame	24
+#	DISPATCHER_CONTEXT.TargetIp		32
+#	DISPATCHER_CONTEXT.ContextRecord	40
+#	DISPATCHER_CONTEXT.LanguageHandler	48
+#	DISPATCHER_CONTEXT.HandlerData		56
+#	UNW_FLAG_NHANDLER			0
+#	ExceptionContinueSearch			1
+#
+# In order to tie the handler to the function one has to compose
+# couple of structures: one for .xdata segment and one for .pdata.
+#
+# UNWIND_INFO structure for .xdata segment would be
+#
+# function_unwind_info:
+#	.byte	9,0,0,0
+#	.rva	handler
+#
+# This structure designates exception handler for a function with
+# zero-length prologue, no stack frame or frame register.
+#
+# To facilitate composing of .pdata structures, auto-generated "gear"
+# prologue copies rsp value to rax and denotes next instruction with
+# .LSEH_begin_{function_name} label. This essentially defines the SEH
+# styling rule mentioned in the beginning. Position of this label is
+# chosen in such manner that possible exceptions raised in the "gear"
+# prologue would be accounted to caller and unwound from latter's frame.
+# End of function is marked with respective .LSEH_end_{function_name}
+# label. To summarize, .pdata segment would contain
+#
+#	.rva	.LSEH_begin_function
+#	.rva	.LSEH_end_function
+#	.rva	function_unwind_info
+#
+# Reference to functon_unwind_info from .xdata segment is the anchor.
+# In case you wonder why references are 32-bit .rvas and not 64-bit
+# .quads. References put into these two segments are required to be
+# *relative* to the base address of the current binary module, a.k.a.
+# image base. No Win64 module, be it .exe or .dll, can be larger than
+# 2GB and thus such relative references can be and are accommodated in
+# 32 bits.
+#
+# Having reviewed the example function code, one can argue that "movq
+# %rsp,%rax" above is redundant. It is not! Keep in mind that on Unix
+# rax would contain an undefined value. If this "offends" you, use
+# another register and refrain from modifying rax till magic_point is
+# reached, i.e. as if it was a non-volatile register. If more registers
+# are required prior [variable] frame setup is completed, note that
+# nobody says that you can have only one "magic point." You can
+# "liberate" non-volatile registers by denoting last stack off-load
+# instruction and reflecting it in finer grade unwind logic in handler.
+# After all, isn't it why it's called *language-specific* handler...
+#
+# Attentive reader can notice that exceptions would be mishandled in
+# auto-generated "gear" epilogue. Well, exception effectively can't
+# occur there, because if memory area used by it was subject to
+# segmentation violation, then it would be raised upon call to the
+# function (and as already mentioned be accounted to caller, which is
+# not a problem). If you're still not comfortable, then define tail
+# "magic point" just prior ret instruction and have handler treat it...
+#
+# (*)	Note that we're talking about run-time, not debug-time. Lack of
+#	unwind information makes debugging hard on both Windows and
+#	Unix. "Unlike" referes to the fact that on Unix signal handler
+#	will always be invoked, core dumped and appropriate exit code
+#	returned to parent (for user notification).
diff --git a/lib/libcrypto/perlasm/x86asm.pl b/lib/libcrypto/perlasm/x86asm.pl
index f535c9c7fab..4756a28e59a 100644
--- a/lib/libcrypto/perlasm/x86asm.pl
+++ b/lib/libcrypto/perlasm/x86asm.pl
@@ -1,136 +1,221 @@
-#!/usr/local/bin/perl
+#!/usr/bin/env perl
 
 # require 'x86asm.pl';
-# &asm_init("cpp","des-586.pl");
-# XXX
-# XXX
-# main'asm_finish
-
-sub main'asm_finish
-	{
-	&file_end();
-	&asm_finish_cpp() if $cpp;
-	print &asm_get_output();
-	}
-
-sub main'asm_init
-	{
-	($type,$fn,$i386)=@_;
-	$filename=$fn;
-
-	$elf=$cpp=$coff=$aout=$win32=$netware=$mwerks=$openbsd=0;
-	if (	($type eq "elf"))
-		{ $elf=1; require "x86unix.pl"; }
-	elsif (	($type eq "openbsd-elf"))
-		{ $openbsd=$elf=1; require "x86unix.pl"; }
-	elsif (	($type eq "openbsd-a.out"))
-		{ $openbsd=1; require "x86unix.pl"; }
-	elsif (	($type eq "a.out"))
-		{ $aout=1; require "x86unix.pl"; }
-	elsif (	($type eq "coff" or $type eq "gaswin"))
-		{ $coff=1; require "x86unix.pl"; }
-	elsif (	($type eq "cpp"))
-		{ $cpp=1; require "x86unix.pl"; }
-	elsif (	($type eq "win32"))
-		{ $win32=1; require "x86ms.pl"; }
-	elsif (	($type eq "win32n"))
-		{ $win32=1; require "x86nasm.pl"; }
-	elsif (	($type eq "nw-nasm"))
-		{ $netware=1; require "x86nasm.pl"; }
-	elsif (	($type eq "nw-mwasm"))
-		{ $netware=1; $mwerks=1; require "x86nasm.pl"; }
-	else
-		{
-		print STDERR <<"EOF";
+# &asm_init(<flavor>,"des-586.pl"[,$i386only]);
+# &function_begin("foo");
+# ...
+# &function_end("foo");
+# &asm_finish
+
+$out=();
+$i386=0;
+
+# AUTOLOAD is this context has quite unpleasant side effect, namely
+# that typos in function calls effectively go to assembler output,
+# but on the pros side we don't have to implement one subroutine per
+# each opcode...
+sub ::AUTOLOAD
+{ my $opcode = $AUTOLOAD;
+
+    die "more than 4 arguments passed to $opcode" if ($#_>3);
+
+    $opcode =~ s/.*:://;
+    if    ($opcode =~ /^push/) { $stack+=4; }
+    elsif ($opcode =~ /^pop/)  { $stack-=4; }
+
+    &generic($opcode,@_) or die "undefined subroutine \&$AUTOLOAD";
+}
+
+sub ::emit
+{ my $opcode=shift;
+
+    if ($#_==-1)    { push(@out,"\t$opcode\n");				}
+    else            { push(@out,"\t$opcode\t".join(',',@_)."\n");	}
+}
+
+sub ::emitraw
+{ my $opcode=shift;
+
+    if ($#_==-1)    { push(@out,"$opcode\n");				}
+    else            { push(@out,"$opcode\t".join(',',@_)."\n");	}
+}
+
+sub ::LB
+{   $_[0] =~ m/^e?([a-d])x$/o or die "$_[0] does not have a 'low byte'";
+  $1."l";
+}
+sub ::HB
+{   $_[0] =~ m/^e?([a-d])x$/o or die "$_[0] does not have a 'high byte'";
+  $1."h";
+}
+sub ::stack_push{ my $num=$_[0]*4; $stack+=$num; &sub("esp",$num);	}
+sub ::stack_pop	{ my $num=$_[0]*4; $stack-=$num; &add("esp",$num);	}
+sub ::blindpop	{ &pop($_[0]); $stack+=4;				}
+sub ::wparam	{ &DWP($stack+4*$_[0],"esp");				}
+sub ::swtmp	{ &DWP(4*$_[0],"esp");					}
+
+sub ::bswap
+{   if ($i386)	# emulate bswap for i386
+    {	&comment("bswap @_");
+	&xchg(&HB(@_),&LB(@_));
+	&ror (@_,16);
+	&xchg(&HB(@_),&LB(@_));
+    }
+    else
+    {	&generic("bswap",@_);	}
+}
+# These are made-up opcodes introduced over the years essentially
+# by ignorance, just alias them to real ones...
+sub ::movb	{ &mov(@_);	}
+sub ::xorb	{ &xor(@_);	}
+sub ::rotl	{ &rol(@_);	}
+sub ::rotr	{ &ror(@_);	}
+sub ::exch	{ &xchg(@_);	}
+sub ::halt	{ &hlt;		}
+sub ::movz	{ &movzx(@_);	}
+sub ::pushf	{ &pushfd;	}
+sub ::popf	{ &popfd;	}
+
+# 3 argument instructions
+sub ::movq
+{ my($p1,$p2,$optimize)=@_;
+
+    if ($optimize && $p1=~/^mm[0-7]$/ && $p2=~/^mm[0-7]$/)
+    # movq between mmx registers can sink Intel CPUs
+    {	&::pshufw($p1,$p2,0xe4);		}
+    else
+    {	&::generic("movq",@_);			}
+}
+
+# label management
+$lbdecor="L";		# local label decoration, set by package
+$label="000";
+
+sub ::islabel		# see is argument is a known label
+{ my $i;
+    foreach $i (values %label) { return $i if ($i eq $_[0]); }
+  $label{$_[0]};	# can be undef
+}
+
+sub ::label		# instantiate a function-scope label
+{   if (!defined($label{$_[0]}))
+    {	$label{$_[0]}="${lbdecor}${label}${_[0]}"; $label++;   }
+  $label{$_[0]};
+}
+
+sub ::LABEL		# instantiate a file-scope label
+{   $label{$_[0]}=$_[1] if (!defined($label{$_[0]}));
+  $label{$_[0]};
+}
+
+sub ::static_label	{ &::LABEL($_[0],$lbdecor.$_[0]); }
+
+sub ::set_label_B	{ push(@out,"@_:\n"); }
+sub ::set_label
+{ my $label=&::label($_[0]);
+    &::align($_[1]) if ($_[1]>1);
+    &::set_label_B($label);
+  $label;
+}
+
+sub ::wipe_labels	# wipes function-scope labels
+{   foreach $i (keys %label)
+    {	delete $label{$i} if ($label{$i} =~ /^\Q${lbdecor}\E[0-9]{3}/);	}
+}
+
+# subroutine management
+sub ::function_begin
+{   &function_begin_B(@_);
+    $stack=4;
+    &push("ebp");
+    &push("ebx");
+    &push("esi");
+    &push("edi");
+}
+
+sub ::function_end
+{   &pop("edi");
+    &pop("esi");
+    &pop("ebx");
+    &pop("ebp");
+    &ret();
+    &function_end_B(@_);
+    $stack=0;
+    &wipe_labels();
+}
+
+sub ::function_end_A
+{   &pop("edi");
+    &pop("esi");
+    &pop("ebx");
+    &pop("ebp");
+    &ret();
+    $stack+=16;	# readjust esp as if we didn't pop anything
+}
+
+sub ::asciz
+{ my @str=unpack("C*",shift);
+    push @str,0;
+    while ($#str>15) {
+	&data_byte(@str[0..15]);
+	foreach (0..15) { shift @str; }
+    }
+    &data_byte(@str) if (@str);
+}
+
+sub ::asm_finish
+{   &file_end();
+    print @out;
+}
+
+sub ::asm_init
+{ my ($type,$fn,$cpu)=@_;
+
+    $filename=$fn;
+    $i386=$cpu;
+
+    $elf=$cpp=$coff=$aout=$macosx=$win32=$netware=$mwerks=$openbsd=0;
+    if    (($type eq "elf"))
+    {	$elf=1;			require "x86gas.pl";	}
+    elsif (($type eq "a\.out"))
+    {	$aout=1;		require "x86gas.pl";	}
+    elsif (($type eq "coff" or $type eq "gaswin"))
+    {	$coff=1;		require "x86gas.pl";	}
+    elsif (($type eq "win32n"))
+    {	$win32=1;		require "x86nasm.pl";	}
+    elsif (($type eq "nw-nasm"))
+    {	$netware=1;		require "x86nasm.pl";	}
+    #elsif (($type eq "nw-mwasm"))
+    #{	$netware=1; $mwerks=1;	require "x86nasm.pl";	}
+    elsif (($type eq "win32"))
+    {	$win32=1;		require "x86masm.pl";	}
+    elsif (($type eq "macosx"))
+    {	$aout=1; $macosx=1;	require "x86gas.pl";	}
+    elsif (($type eq "openbsd-elf"))
+    {	$openbsd=$elf=1;	require "x86gas.pl";	}
+    elsif (($type eq "openbsd-a.out"))
+    {	$openbsd=1;		require "x86gas.pl";	}
+    else
+    {	print STDERR <<"EOF";
 Pick one target type from
 	elf	- Linux, FreeBSD, Solaris x86, etc.
-	a.out	- OpenBSD, DJGPP, etc.
+	a.out	- DJGPP, elder OpenBSD, etc.
 	coff	- GAS/COFF such as Win32 targets
-	win32	- Windows 95/Windows NT
 	win32n	- Windows 95/Windows NT NASM format
 	openbsd-elf	- OpenBSD elf
 	openbsd-a.out	- OpenBSD a.out
 	nw-nasm - NetWare NASM format
-	nw-mwasm- NetWare Metrowerks Assembler
+	macosx	- Mac OS X
 EOF
-		exit(1);
-		}
-
-	$pic=0;
-	for (@ARGV) {	$pic=1 if (/\-[fK]PIC/i);	}
-
-	&asm_init_output();
-
-&comment("Don't even think of reading this code");
-&comment("It was automatically generated by $filename");
-&comment("Which is a perl program used to generate the x86 assember for");
-&comment("any of ELF, a.out, COFF, Win32, ...");
-&comment("eric <eay\@cryptsoft.com>");
-&comment("");
-
-	$filename =~ s/\.pl$//;
-	&file($filename);
-	}
-
-sub asm_finish_cpp
-	{
-	return unless $cpp;
-
-	local($tmp,$i);
-	foreach $i (&get_labels())
-		{
-		$tmp.="#define $i _$i\n";
-		}
-	print <<"EOF";
-/* Run the C pre-processor over this file with one of the following defined
- * ELF - elf object files,
- * OUT - a.out object files,
- * BSDI - BSDI style a.out object files
- * SOL - Solaris style elf
- */
-
-#define TYPE(a,b)       .type   a,b
-#define SIZE(a,b)       .size   a,b
-
-#if defined(OUT) || (defined(BSDI) && !defined(ELF))
-$tmp
-#endif
-
-#ifdef OUT
-#define OK	1
-#define ALIGN	4
-#if defined(__CYGWIN__) || defined(__DJGPP__) || (__MINGW32__)
-#undef SIZE
-#undef TYPE
-#define SIZE(a,b)
-#define TYPE(a,b)	.def a; .scl 2; .type 32; .endef
-#endif /* __CYGWIN || __DJGPP */
-#endif
-
-#if defined(BSDI) && !defined(ELF)
-#define OK              1
-#define ALIGN           4
-#undef SIZE
-#undef TYPE
-#define SIZE(a,b)
-#define TYPE(a,b)
-#endif
-
-#if defined(ELF) || defined(SOL)
-#define OK              1
-#define ALIGN           16
-#endif
-
-#ifndef OK
-You need to define one of
-ELF - elf systems - linux-elf, NetBSD and DG-UX
-OUT - a.out systems - linux-a.out and FreeBSD
-SOL - solaris systems, which are elf with strange comment lines
-BSDI - a.out with a very primative version of as.
-#endif
-
-/* Let the Assembler begin :-) */
-EOF
-	}
+	exit(1);
+    }
+
+    $pic=0;
+    for (@ARGV) { $pic=1 if (/\-[fK]PIC/i); }
+
+    ::emitraw("#include <machine/asm.h>\n") if $openbsd;
+    $filename =~ s/\.pl$//;
+    &file($filename);
+}
 
 1;
diff --git a/lib/libcrypto/perlasm/x86gas.pl b/lib/libcrypto/perlasm/x86gas.pl
index 6eab727fd4e..15e17f25d05 100644
--- a/lib/libcrypto/perlasm/x86gas.pl
+++ b/lib/libcrypto/perlasm/x86gas.pl
@@ -180,7 +180,16 @@ sub ::align
 sub ::picmeup
 { my($dst,$sym,$base,$reflabel)=@_;
 
-    if ($::pic && ($::elf || $::aout))
+    if ($::openbsd)
+    {  &::emitraw("#ifdef PIC");
+       &::emitraw("PIC_PROLOGUE");
+       &::mov($dst, &::DWP("PIC_GOT($sym)"));
+       &::emitraw("PIC_EPILOGUE");
+       &::emitraw("#else /* PIC */");
+       &::lea($dst,&::DWP($sym));
+       &::emitraw("#endif /* PIC */");
+    }
+    elsif ($::pic && ($::elf || $::aout))
     {	if (!defined($base))
 	{   &::call(&::label("PIC_me_up"));
 	    &::set_label("PIC_me_up");
@@ -206,7 +215,18 @@ sub ::picmeup
 sub ::initseg
 { my $f=$nmdecor.shift;
 
-    if ($::elf)
+    if ($::openbsd)
+    {	$initseg.=<<___;
+.section	.init
+PIC_PROLOGUE
+	call	PIC_PLT($f)
+PIC_EPILOGUE
+	jmp	.Linitalign
+.align	$align
+.Linitalign:
+___
+    }
+    elsif ($::elf)
     {	$initseg.=<<___;
 .section	.init
 	call	$f
diff --git a/lib/libcrypto/perlasm/x86ms.pl b/lib/libcrypto/perlasm/x86ms.pl
deleted file mode 100644
index a0be2934c20..00000000000
--- a/lib/libcrypto/perlasm/x86ms.pl
+++ /dev/null
@@ -1,472 +0,0 @@
-#!/usr/local/bin/perl
-
-package x86ms;
-
-$label="L000";
-
-%lb=(	'eax',	'al',
-	'ebx',	'bl',
-	'ecx',	'cl',
-	'edx',	'dl',
-	'ax',	'al',
-	'bx',	'bl',
-	'cx',	'cl',
-	'dx',	'dl',
-	);
-
-%hb=(	'eax',	'ah',
-	'ebx',	'bh',
-	'ecx',	'ch',
-	'edx',	'dh',
-	'ax',	'ah',
-	'bx',	'bh',
-	'cx',	'ch',
-	'dx',	'dh',
-	);
-
-sub main'asm_init_output { @out=(); }
-sub main'asm_get_output { return(@out); }
-sub main'get_labels { return(@labels); }
-sub main'external_label
-{
-	push(@labels,@_);
-	foreach (@_) {
-		push(@out, "EXTRN\t_$_:DWORD\n");
-	}
-}
-
-sub main'LB
-	{
-	(defined($lb{$_[0]})) || die "$_[0] does not have a 'low byte'\n";
-	return($lb{$_[0]});
-	}
-
-sub main'HB
-	{
-	(defined($hb{$_[0]})) || die "$_[0] does not have a 'high byte'\n";
-	return($hb{$_[0]});
-	}
-
-sub main'BP
-	{
-	&get_mem("BYTE",@_);
-	}
-
-sub main'DWP
-	{
-	&get_mem("DWORD",@_);
-	}
-
-sub main'QWP
-	{
-	&get_mem("QWORD",@_);
-	}
-
-sub main'BC
-	{
-	return @_;
-	}
-
-sub main'DWC
-	{
-	return @_;
-	}
-
-sub main'stack_push
-	{
-	local($num)=@_;
-	$stack+=$num*4;
-	&main'sub("esp",$num*4);
-	}
-
-sub main'stack_pop
-	{
-	local($num)=@_;
-	$stack-=$num*4;
-	&main'add("esp",$num*4);
-	}
-
-sub get_mem
-	{
-	local($size,$addr,$reg1,$reg2,$idx)=@_;
-	local($t,$post);
-	local($ret)="$size PTR ";
-
-	$addr =~ s/^\s+//;
-	if ($addr =~ /^(.+)\+(.+)$/)
-		{
-		$reg2=&conv($1);
-		$addr="_$2";
-		}
-	elsif ($addr =~ /^[_a-z][_a-z0-9]*$/i)
-		{
-		$addr="_$addr";
-		}
-
-	if ($addr =~ /^.+\-.+$/) { $addr="($addr)"; }
-
-	$reg1="$regs{$reg1}" if defined($regs{$reg1});
-	$reg2="$regs{$reg2}" if defined($regs{$reg2});
-	if (($addr ne "") && ($addr ne 0))
-		{
-		if ($addr !~ /^-/)
-			{ $ret.=$addr; }
-		else	{ $post=$addr; }
-		}
-	if ($reg2 ne "")
-		{
-		$t="";
-		$t="*$idx" if ($idx != 0);
-		$reg1="+".$reg1 if ("$reg1$post" ne "");
-		$ret.="[$reg2$t$reg1$post]";
-		}
-	else
-		{
-		$ret.="[$reg1$post]"
-		}
-	$ret =~ s/\[\]//;	# in case $addr was the only argument
-	return($ret);
-	}
-
-sub main'mov	{ &out2("mov",@_); }
-sub main'movb	{ &out2("mov",@_); }
-sub main'and	{ &out2("and",@_); }
-sub main'or	{ &out2("or",@_); }
-sub main'shl	{ &out2("shl",@_); }
-sub main'shr	{ &out2("shr",@_); }
-sub main'xor	{ &out2("xor",@_); }
-sub main'xorb	{ &out2("xor",@_); }
-sub main'add	{ &out2("add",@_); }
-sub main'adc	{ &out2("adc",@_); }
-sub main'sub	{ &out2("sub",@_); }
-sub main'sbb	{ &out2("sbb",@_); }
-sub main'rotl	{ &out2("rol",@_); }
-sub main'rotr	{ &out2("ror",@_); }
-sub main'exch	{ &out2("xchg",@_); }
-sub main'cmp	{ &out2("cmp",@_); }
-sub main'lea	{ &out2("lea",@_); }
-sub main'mul	{ &out1("mul",@_); }
-sub main'imul	{ &out2("imul",@_); }
-sub main'div	{ &out1("div",@_); }
-sub main'dec	{ &out1("dec",@_); }
-sub main'inc	{ &out1("inc",@_); }
-sub main'jmp	{ &out1("jmp",@_); }
-sub main'jmp_ptr { &out1p("jmp",@_); }
-sub main'je	{ &out1("je",@_); }
-sub main'jle	{ &out1("jle",@_); }
-sub main'jz	{ &out1("jz",@_); }
-sub main'jge	{ &out1("jge",@_); }
-sub main'jl	{ &out1("jl",@_); }
-sub main'ja	{ &out1("ja",@_); }
-sub main'jae	{ &out1("jae",@_); }
-sub main'jb	{ &out1("jb",@_); }
-sub main'jbe	{ &out1("jbe",@_); }
-sub main'jc	{ &out1("jc",@_); }
-sub main'jnc	{ &out1("jnc",@_); }
-sub main'jnz	{ &out1("jnz",@_); }
-sub main'jne	{ &out1("jne",@_); }
-sub main'jno	{ &out1("jno",@_); }
-sub main'push	{ &out1("push",@_); $stack+=4; }
-sub main'pop	{ &out1("pop",@_); $stack-=4; }
-sub main'pushf	{ &out0("pushfd"); $stack+=4; }
-sub main'popf	{ &out0("popfd"); $stack-=4; }
-sub main'bswap	{ &out1("bswap",@_); &using486(); }
-sub main'not	{ &out1("not",@_); }
-sub main'call	{ &out1("call",($_[0]=~/^\$L/?'':'_').$_[0]); }
-sub main'call_ptr { &out1p("call",@_); }
-sub main'ret	{ &out0("ret"); }
-sub main'nop	{ &out0("nop"); }
-sub main'test	{ &out2("test",@_); }
-sub main'bt	{ &out2("bt",@_); }
-sub main'leave	{ &out0("leave"); }
-sub main'cpuid  { &out0("DW\t0A20Fh"); }
-sub main'rdtsc  { &out0("DW\t0310Fh"); }
-sub main'halt	{ &out0("hlt"); }
-sub main'movz	{ &out2("movzx",@_); }
-sub main'neg	{ &out1("neg",@_); }
-sub main'cld	{ &out0("cld"); }
-
-# SSE2
-sub main'emms	{ &out0("emms"); }
-sub main'movd	{ &out2("movd",@_); }
-sub main'movq	{ &out2("movq",@_); }
-sub main'movdqu	{ &out2("movdqu",@_); }
-sub main'movdqa	{ &out2("movdqa",@_); }
-sub main'movdq2q{ &out2("movdq2q",@_); }
-sub main'movq2dq{ &out2("movq2dq",@_); }
-sub main'paddq	{ &out2("paddq",@_); }
-sub main'pmuludq{ &out2("pmuludq",@_); }
-sub main'psrlq	{ &out2("psrlq",@_); }
-sub main'psllq	{ &out2("psllq",@_); }
-sub main'pxor	{ &out2("pxor",@_); }
-sub main'por	{ &out2("por",@_); }
-sub main'pand	{ &out2("pand",@_); }
-
-sub out2
-	{
-	local($name,$p1,$p2)=@_;
-	local($l,$t,$line);
-
-	$line="\t$name\t";
-	$t=&conv($p1).",";
-	$l=length($t);
-	$line.="$t";
-	$l=4-($l+9)/8;
-	$line.="\t" x $l;
-	$line.=&conv($p2);
-	if ($line=~/\bxmm[0-7]\b/i) { $line=~s/\b[A-Z]+WORD\s+PTR/XMMWORD PTR/i; }
-	push(@out,$line."\n");
-	}
-
-sub out0
-	{
-	local($name)=@_;
-
-	push(@out,"\t$name\n");
-	}
-
-sub out1
-	{
-	local($name,$p1)=@_;
-	local($l,$t);
-
-	push(@out,"\t$name\t".&conv($p1)."\n");
-	}
-
-sub conv
-	{
-	local($p)=@_;
-
-	$p =~ s/0x([0-9A-Fa-f]+)/0$1h/;
-	return $p;
-	}
-
-sub using486
-	{
-	return if $using486;
-	$using486++;
-	grep(s/\.386/\.486/,@out);
-	}
-
-sub main'file
-	{
-	local($file)=@_;
-
-	local($tmp)=<<"EOF";
-	TITLE	$file.asm
-        .386
-.model	FLAT
-_TEXT\$	SEGMENT PAGE 'CODE'
-
-EOF
-	push(@out,$tmp);
-	}
-
-sub main'function_begin
-	{
-	local($func,$extra)=@_;
-
-	push(@labels,$func);
-
-	local($tmp)=<<"EOF";
-PUBLIC	_$func
-$extra
-_$func PROC NEAR
-	push	ebp
-	push	ebx
-	push	esi
-	push	edi
-EOF
-	push(@out,$tmp);
-	$stack=20;
-	}
-
-sub main'function_begin_B
-	{
-	local($func,$extra)=@_;
-
-	local($tmp)=<<"EOF";
-PUBLIC	_$func
-$extra
-_$func PROC NEAR
-EOF
-	push(@out,$tmp);
-	$stack=4;
-	}
-
-sub main'function_end
-	{
-	local($func)=@_;
-
-	local($tmp)=<<"EOF";
-	pop	edi
-	pop	esi
-	pop	ebx
-	pop	ebp
-	ret
-_$func ENDP
-EOF
-	push(@out,$tmp);
-	$stack=0;
-	%label=();
-	}
-
-sub main'function_end_B
-	{
-	local($func)=@_;
-
-	local($tmp)=<<"EOF";
-_$func ENDP
-EOF
-	push(@out,$tmp);
-	$stack=0;
-	%label=();
-	}
-
-sub main'function_end_A
-	{
-	local($func)=@_;
-
-	local($tmp)=<<"EOF";
-	pop	edi
-	pop	esi
-	pop	ebx
-	pop	ebp
-	ret
-EOF
-	push(@out,$tmp);
-	}
-
-sub main'file_end
-	{
-	# try to detect if SSE2 or MMX extensions were used...
-	my $xmmheader=<<___;
-.686
-.XMM
-IF \@Version LT 800
-XMMWORD STRUCT 16
-	DQ  2 dup (?)
-XMMWORD ENDS
-ENDIF
-___
-	if (grep {/\b[x]?mm[0-7]\b/i} @out) {
-		grep {s/\.[3-7]86/$xmmheader/} @out;
-		}
-	push(@out,"_TEXT\$	ENDS\n");
-	push(@out,"END\n");
-	}
-
-sub main'wparam
-	{
-	local($num)=@_;
-
-	return(&main'DWP($stack+$num*4,"esp","",0));
-	}
-
-sub main'swtmp
-	{
-	return(&main'DWP($_[0]*4,"esp","",0));
-	}
-
-# Should use swtmp, which is above esp.  Linix can trash the stack above esp
-#sub main'wtmp
-#	{
-#	local($num)=@_;
-#
-#	return(&main'DWP(-(($num+1)*4),"esp","",0));
-#	}
-
-sub main'comment
-	{
-	foreach (@_)
-		{
-		push(@out,"\t; $_\n");
-		}
-	}
-
-sub main'public_label
-	{
-	$label{$_[0]}="_$_[0]"	if (!defined($label{$_[0]}));
-	push(@out,"PUBLIC\t$label{$_[0]}\n");
-	}
-
-sub main'label
-	{
-	if (!defined($label{$_[0]}))
-		{
-		$label{$_[0]}="\$${label}${_[0]}";
-		$label++;
-		}
-	return($label{$_[0]});
-	}
-
-sub main'set_label
-	{
-	if (!defined($label{$_[0]}))
-		{
-		$label{$_[0]}="\$${label}${_[0]}";
-		$label++;
-		}
-	if ($_[1]!=0 && $_[1]>1)
-		{
-		main'align($_[1]);
-		}
-	if((defined $_[2]) && ($_[2] == 1))
-		{
-		push(@out,"$label{$_[0]}::\n");
-		}
-	elsif ($label{$_[0]} !~ /^\$/)
-		{
-		push(@out,"$label{$_[0]}\tLABEL PTR\n");
-		}
-	else
-		{
-		push(@out,"$label{$_[0]}:\n");
-		}
-	}
-
-sub main'data_byte
-	{
-	push(@out,"\tDB\t".join(',',@_)."\n");
-	}
-
-sub main'data_word
-	{
-	push(@out,"\tDD\t".join(',',@_)."\n");
-	}
-
-sub main'align
-	{
-	push(@out,"\tALIGN\t$_[0]\n");
-	}
-
-sub out1p
-	{
-	local($name,$p1)=@_;
-	local($l,$t);
-
-	push(@out,"\t$name\t".&conv($p1)."\n");
-	}
-
-sub main'picmeup
-	{
-	local($dst,$sym)=@_;
-	&main'lea($dst,&main'DWP($sym));
-	}
-
-sub main'blindpop { &out1("pop",@_); }
-
-sub main'initseg 
-	{
-	local($f)=@_;
-	local($tmp)=<<___;
-OPTION	DOTNAME
-.CRT\$XCU	SEGMENT DWORD PUBLIC 'DATA'
-EXTRN	_$f:NEAR
-DD	_$f
-.CRT\$XCU	ENDS
-___
-	push(@out,$tmp);
-	}
-
-1;
diff --git a/lib/libcrypto/perlasm/x86nasm.pl b/lib/libcrypto/perlasm/x86nasm.pl
index fa38f89c09f..ce2bed9bb29 100644
--- a/lib/libcrypto/perlasm/x86nasm.pl
+++ b/lib/libcrypto/perlasm/x86nasm.pl
@@ -1,455 +1,166 @@
-#!/usr/local/bin/perl
+#!/usr/bin/env perl
 
 package x86nasm;
 
-$label="L000";
-$under=($main'netware)?'':'_';
+*out=\@::out;
 
-%lb=(	'eax',	'al',
-	'ebx',	'bl',
-	'ecx',	'cl',
-	'edx',	'dl',
-	'ax',	'al',
-	'bx',	'bl',
-	'cx',	'cl',
-	'dx',	'dl',
-	);
+$::lbdecor="L\$";		# local label decoration
+$nmdecor=$::netware?"":"_";	# external name decoration
+$drdecor=$::mwerks?".":"";	# directive decoration
 
-%hb=(	'eax',	'ah',
-	'ebx',	'bh',
-	'ecx',	'ch',
-	'edx',	'dh',
-	'ax',	'ah',
-	'bx',	'bh',
-	'cx',	'ch',
-	'dx',	'dh',
-	);
+$initseg="";
 
-sub main'asm_init_output { @out=(); }
-sub main'asm_get_output { return(@out); }
-sub main'get_labels { return(@labels); }
+sub ::generic
+{ my $opcode=shift;
+  my $tmp;
 
-sub main'external_label
-{
-	push(@labels,@_);
-	foreach (@_) {
-		push(@out,".") if ($main'mwerks);
-		push(@out, "extern\t${under}$_\n");
-	}
+    if (!$::mwerks)
+    {   if    ($opcode =~ m/^j/o && $#_==0) # optimize jumps
+	{   $_[0] = "NEAR $_[0]";   	}
+	elsif ($opcode eq "lea" && $#_==1)  # wipe storage qualifier from lea
+	{   $_[1] =~ s/^[^\[]*\[/\[/o;	}
+    }
+    &::emit($opcode,@_);
+  1;
 }
-
-sub main'LB
-	{
-	(defined($lb{$_[0]})) || die "$_[0] does not have a 'low byte'\n";
-	return($lb{$_[0]});
-	}
-
-sub main'HB
-	{
-	(defined($hb{$_[0]})) || die "$_[0] does not have a 'high byte'\n";
-	return($hb{$_[0]});
-	}
-
-sub main'BP
-	{
-	&get_mem("BYTE",@_);
-	}
-
-sub main'DWP
-	{
-	&get_mem("DWORD",@_);
-	}
-
-sub main'QWP
-	{
-	&get_mem("",@_);
-	}
-
-sub main'BC
-	{
-	return (($main'mwerks)?"":"BYTE ")."@_";
-	}
-
-sub main'DWC
-	{
-	return (($main'mwerks)?"":"DWORD ")."@_";
-	}
-
-sub main'stack_push
-	{
-	my($num)=@_;
-	$stack+=$num*4;
-	&main'sub("esp",$num*4);
-	}
-
-sub main'stack_pop
-	{
-	my($num)=@_;
-	$stack-=$num*4;
-	&main'add("esp",$num*4);
-	}
+#
+# opcodes not covered by ::generic above, mostly inconsistent namings...
+#
+sub ::call	{ &::emit("call",(&::islabel($_[0]) or "$nmdecor$_[0]")); }
+sub ::call_ptr	{ &::emit("call",@_);	}
+sub ::jmp_ptr	{ &::emit("jmp",@_);	}
 
 sub get_mem
-	{
-	my($size,$addr,$reg1,$reg2,$idx)=@_;
-	my($t,$post);
-	my($ret)=$size;
-	if ($ret ne "")
-		{
-		$ret .= " PTR" if ($main'mwerks);
-		$ret .= " ";
-		}
-	$ret .= "[";
-	$addr =~ s/^\s+//;
-	if ($addr =~ /^(.+)\+(.+)$/)
-		{
-		$reg2=&conv($1);
-		$addr="$under$2";
-		}
-	elsif ($addr =~ /^[_a-z][_a-z0-9]*$/i)
-		{
-		$addr="$under$addr";
-		}
-
-	if ($addr =~ /^.+\-.+$/) { $addr="($addr)"; }
-
-	$reg1="$regs{$reg1}" if defined($regs{$reg1});
-	$reg2="$regs{$reg2}" if defined($regs{$reg2});
-	if (($addr ne "") && ($addr ne 0))
-		{
-		if ($addr !~ /^-/)
-			{ $ret.="${addr}+"; }
-		else	{ $post=$addr; }
-		}
-	if ($reg2 ne "")
-		{
-		$t="";
-		$t="*$idx" if ($idx != 0);
-		$reg1="+".$reg1 if ("$reg1$post" ne "");
-		$ret.="$reg2$t$reg1$post]";
-		}
-	else
-		{
-		$ret.="$reg1$post]"
-		}
-	$ret =~ s/\+\]/]/; # in case $addr was the only argument
-	return($ret);
-	}
-
-sub main'mov	{ &out2("mov",@_); }
-sub main'movb	{ &out2("mov",@_); }
-sub main'and	{ &out2("and",@_); }
-sub main'or	{ &out2("or",@_); }
-sub main'shl	{ &out2("shl",@_); }
-sub main'shr	{ &out2("shr",@_); }
-sub main'xor	{ &out2("xor",@_); }
-sub main'xorb	{ &out2("xor",@_); }
-sub main'add	{ &out2("add",@_); }
-sub main'adc	{ &out2("adc",@_); }
-sub main'sub	{ &out2("sub",@_); }
-sub main'sbb	{ &out2("sbb",@_); }
-sub main'rotl	{ &out2("rol",@_); }
-sub main'rotr	{ &out2("ror",@_); }
-sub main'exch	{ &out2("xchg",@_); }
-sub main'cmp	{ &out2("cmp",@_); }
-sub main'lea	{ &out2("lea",@_); }
-sub main'mul	{ &out1("mul",@_); }
-sub main'imul	{ &out2("imul",@_); }
-sub main'div	{ &out1("div",@_); }
-sub main'dec	{ &out1("dec",@_); }
-sub main'inc	{ &out1("inc",@_); }
-sub main'jmp	{ &out1("jmp",@_); }
-sub main'jmp_ptr { &out1p("jmp",@_); }
-
-# This is a bit of a kludge: declare all branches as NEAR.
-$near=($main'mwerks)?'':'NEAR';
-sub main'je	{ &out1("je $near",@_); }
-sub main'jle	{ &out1("jle $near",@_); }
-sub main'jz	{ &out1("jz $near",@_); }
-sub main'jge	{ &out1("jge $near",@_); }
-sub main'jl	{ &out1("jl $near",@_); }
-sub main'ja	{ &out1("ja $near",@_); }
-sub main'jae	{ &out1("jae $near",@_); }
-sub main'jb	{ &out1("jb $near",@_); }
-sub main'jbe	{ &out1("jbe $near",@_); }
-sub main'jc	{ &out1("jc $near",@_); }
-sub main'jnc	{ &out1("jnc $near",@_); }
-sub main'jnz	{ &out1("jnz $near",@_); }
-sub main'jne	{ &out1("jne $near",@_); }
-sub main'jno	{ &out1("jno $near",@_); }
-
-sub main'push	{ &out1("push",@_); $stack+=4; }
-sub main'pop	{ &out1("pop",@_); $stack-=4; }
-sub main'pushf	{ &out0("pushfd"); $stack+=4; }
-sub main'popf	{ &out0("popfd"); $stack-=4; }
-sub main'bswap	{ &out1("bswap",@_); &using486(); }
-sub main'not	{ &out1("not",@_); }
-sub main'call	{ &out1("call",($_[0]=~/^\@L/?'':$under).$_[0]); }
-sub main'call_ptr { &out1p("call",@_); }
-sub main'ret	{ &out0("ret"); }
-sub main'nop	{ &out0("nop"); }
-sub main'test	{ &out2("test",@_); }
-sub main'bt	{ &out2("bt",@_); }
-sub main'leave	{ &out0("leave"); }
-sub main'cpuid	{ &out0("cpuid"); }
-sub main'rdtsc	{ &out0("rdtsc"); }
-sub main'halt	{ &out0("hlt"); }
-sub main'movz	{ &out2("movzx",@_); }
-sub main'neg	{ &out1("neg",@_); }
-sub main'cld	{ &out0("cld"); }
-
-# SSE2
-sub main'emms	{ &out0("emms"); }
-sub main'movd	{ &out2("movd",@_); }
-sub main'movq	{ &out2("movq",@_); }
-sub main'movdqu	{ &out2("movdqu",@_); }
-sub main'movdqa	{ &out2("movdqa",@_); }
-sub main'movdq2q{ &out2("movdq2q",@_); }
-sub main'movq2dq{ &out2("movq2dq",@_); }
-sub main'paddq	{ &out2("paddq",@_); }
-sub main'pmuludq{ &out2("pmuludq",@_); }
-sub main'psrlq	{ &out2("psrlq",@_); }
-sub main'psllq	{ &out2("psllq",@_); }
-sub main'pxor	{ &out2("pxor",@_); }
-sub main'por	{ &out2("por",@_); }
-sub main'pand	{ &out2("pand",@_); }
-
-sub out2
-	{
-	my($name,$p1,$p2)=@_;
-	my($l,$t);
-
-	push(@out,"\t$name\t");
-	if (!$main'mwerks and $name eq "lea")
-		{
-		$p1 =~ s/^[^\[]*\[/\[/;
-		$p2 =~ s/^[^\[]*\[/\[/;
-		}
-	$t=&conv($p1).",";
-	$l=length($t);
-	push(@out,$t);
-	$l=4-($l+9)/8;
-	push(@out,"\t" x $l);
-	push(@out,&conv($p2));
-	push(@out,"\n");
-	}
-
-sub out0
-	{
-	my($name)=@_;
-
-	push(@out,"\t$name\n");
-	}
-
-sub out1
-	{
-	my($name,$p1)=@_;
-	my($l,$t);
-	push(@out,"\t$name\t".&conv($p1)."\n");
-	}
-
-sub conv
-	{
-	my($p)=@_;
-	$p =~ s/0x([0-9A-Fa-f]+)/0$1h/;
-	return $p;
-	}
-
-sub using486
-	{
-	return if $using486;
-	$using486++;
-	grep(s/\.386/\.486/,@out);
-	}
-
-sub main'file
-	{
-	if ($main'mwerks)	{ push(@out,".section\t.text\n"); }
-	else	{
-		local $tmp=<<___;
-%ifdef __omf__
-section	code	use32 class=code
+{ my($size,$addr,$reg1,$reg2,$idx)=@_;
+  my($post,$ret);
+
+    if ($size ne "")
+    {	$ret .= "$size";
+	$ret .= " PTR" if ($::mwerks);
+	$ret .= " ";
+    }
+    $ret .= "[";
+
+    $addr =~ s/^\s+//;
+    # prepend global references with optional underscore
+    $addr =~ s/^([^\+\-0-9][^\+\-]*)/::islabel($1) or "$nmdecor$1"/ige;
+    # put address arithmetic expression in parenthesis
+    $addr="($addr)" if ($addr =~ /^.+[\-\+].+$/);
+
+    if (($addr ne "") && ($addr ne 0))
+    {	if ($addr !~ /^-/)	{ $ret .= "$addr+"; }
+	else			{ $post=$addr;      }
+    }
+
+    if ($reg2 ne "")
+    {	$idx!=0 or $idx=1;
+	$ret .= "$reg2*$idx";
+	$ret .= "+$reg1" if ($reg1 ne "");
+    }
+    else
+    {	$ret .= "$reg1";   }
+
+    $ret .= "$post]";
+    $ret =~ s/\+\]/]/; # in case $addr was the only argument
+
+  $ret;
+}
+sub ::BP	{ &get_mem("BYTE",@_);  }
+sub ::DWP	{ &get_mem("DWORD",@_); }
+sub ::QWP	{ &get_mem("",@_);      }
+sub ::BC	{ (($::mwerks)?"":"BYTE ")."@_";  }
+sub ::DWC	{ (($::mwerks)?"":"DWORD ")."@_"; }
+
+sub ::file
+{   if ($::mwerks)	{ push(@out,".section\t.text,64\n"); }
+    else
+    { my $tmp=<<___;
+%ifidn __OUTPUT_FORMAT__,obj
+section	code	use32 class=code align=64
+%elifidn __OUTPUT_FORMAT__,win32
+\$\@feat.00 equ 1
+section	.text	code align=64
 %else
-section	.text
+section	.text	code
 %endif
 ___
-		push(@out,$tmp);
-		}
-	}
-
-sub main'function_begin
-	{
-	my($func,$extra)=@_;
-
-	push(@labels,$func);
-	push(@out,".") if ($main'mwerks);
-	my($tmp)=<<"EOF";
-global	$under$func
-$under$func:
-	push	ebp
-	push	ebx
-	push	esi
-	push	edi
-EOF
-	push(@out,$tmp);
-	$stack=20;
-	}
-
-sub main'function_begin_B
-	{
-	my($func,$extra)=@_;
-	push(@out,".") if ($main'mwerks);
-	my($tmp)=<<"EOF";
-global	$under$func
-$under$func:
-EOF
-	push(@out,$tmp);
-	$stack=4;
-	}
-
-sub main'function_end
-	{
-	my($func)=@_;
-
-	my($tmp)=<<"EOF";
-	pop	edi
-	pop	esi
-	pop	ebx
-	pop	ebp
-	ret
-EOF
 	push(@out,$tmp);
-	$stack=0;
-	%label=();
-	}
-
-sub main'function_end_B
-	{
-	$stack=0;
-	%label=();
-	}
-
-sub main'function_end_A
-	{
-	my($func)=@_;
-
-	my($tmp)=<<"EOF";
-	pop	edi
-	pop	esi
-	pop	ebx
-	pop	ebp
-	ret
-EOF
-	push(@out,$tmp);
-	}
-
-sub main'file_end
-	{
-	}
-
-sub main'wparam
-	{
-	my($num)=@_;
-
-	return(&main'DWP($stack+$num*4,"esp","",0));
-	}
+    }
+}
 
-sub main'swtmp
-	{
-	return(&main'DWP($_[0]*4,"esp","",0));
-	}
+sub ::function_begin_B
+{ my $func=shift;
+  my $global=($func !~ /^_/);
+  my $begin="${::lbdecor}_${func}_begin";
 
-# Should use swtmp, which is above esp.  Linix can trash the stack above esp
-#sub main'wtmp
-#	{
-#	my($num)=@_;
-#
-#	return(&main'DWP(-(($num+1)*4),"esp","",0));
-#	}
+    $begin =~ s/^\@/./ if ($::mwerks);	# the torture never stops
 
-sub main'comment
-	{
-	foreach (@_)
-		{
-		push(@out,"\t; $_\n");
-		}
-	}
+    &::LABEL($func,$global?"$begin":"$nmdecor$func");
+    $func=$nmdecor.$func;
 
-sub main'public_label
-	{
-	$label{$_[0]}="${under}${_[0]}"	if (!defined($label{$_[0]}));
-	push(@out,".") if ($main'mwerks);
-	push(@out,"global\t$label{$_[0]}\n");
-	}
+    push(@out,"${drdecor}global	$func\n")	if ($global);
+    push(@out,"${drdecor}align	16\n");
+    push(@out,"$func:\n");
+    push(@out,"$begin:\n")			if ($global);
+    $::stack=4;
+}
 
-sub main'label
-	{
-	if (!defined($label{$_[0]}))
-		{
-		$label{$_[0]}="\@${label}${_[0]}";
-		$label++;
-		}
-	return($label{$_[0]});
-	}
+sub ::function_end_B
+{   $::stack=0;
+    &::wipe_labels();
+}
 
-sub main'set_label
-	{
-	if (!defined($label{$_[0]}))
-		{
-		$label{$_[0]}="\@${label}${_[0]}";
-		$label++;
-		}
-	if ($_[1]!=0 && $_[1]>1)
-		{
-		main'align($_[1]);
-		}
-	push(@out,"$label{$_[0]}:\n");
-	}
+sub ::file_end
+{   if (grep {/\b${nmdecor}OPENSSL_ia32cap_P\b/i} @out)
+    {	my $comm=<<___;
+${drdecor}segment	.bss
+${drdecor}common	${nmdecor}OPENSSL_ia32cap_P 4
+___
+	# comment out OPENSSL_ia32cap_P declarations
+	grep {s/(^extern\s+${nmdecor}OPENSSL_ia32cap_P)/\;$1/} @out;
+	push (@out,$comm)
+    }
+    push (@out,$initseg) if ($initseg);		
+}
 
-sub main'data_byte
-	{
-	push(@out,(($main'mwerks)?".byte\t":"DB\t").join(',',@_)."\n");
-	}
+sub ::comment {   foreach (@_) { push(@out,"\t; $_\n"); }   }
 
-sub main'data_word
-	{
-	push(@out,(($main'mwerks)?".long\t":"DD\t").join(',',@_)."\n");
-	}
+sub ::external_label
+{   foreach(@_)
+    {	push(@out,"${drdecor}extern\t".&::LABEL($_,$nmdecor.$_)."\n");   }
+}
 
-sub main'align
-	{
-	push(@out,".") if ($main'mwerks);
-	push(@out,"align\t$_[0]\n");
-	}
+sub ::public_label
+{   push(@out,"${drdecor}global\t".&::LABEL($_[0],$nmdecor.$_[0])."\n");  }
 
-sub out1p
-	{
-	my($name,$p1)=@_;
-	my($l,$t);
+sub ::data_byte
+{   push(@out,(($::mwerks)?".byte\t":"db\t").join(',',@_)."\n");	}
 
-	push(@out,"\t$name\t".&conv($p1)."\n");
-	}
+sub ::data_word
+{   push(@out,(($::mwerks)?".long\t":"dd\t").join(',',@_)."\n");	}
 
-sub main'picmeup
-	{
-	local($dst,$sym)=@_;
-	&main'lea($dst,&main'DWP($sym));
-	}
+sub ::align
+{   push(@out,"${drdecor}align\t$_[0]\n");	}
 
-sub main'blindpop { &out1("pop",@_); }
+sub ::picmeup
+{ my($dst,$sym)=@_;
+    &::lea($dst,&::DWP($sym));
+}
 
-sub main'initseg
-	{
-	local($f)=@_;
-	if ($main'win32)
-		{
-		local($tmp)=<<___;
-segment	.CRT\$XCU data
-extern	$under$f
-DD	$under$f
+sub ::initseg
+{ my $f=$nmdecor.shift;
+    if ($::win32)
+    {	$initseg=<<___;
+segment	.CRT\$XCU data align=4
+extern	$f
+dd	$f
 ___
-		push(@out,$tmp);
-		}
-	}
+    }
+}
+
+sub ::dataseg
+{   if ($mwerks)	{ push(@out,".section\t.data,4\n");   }
+    else		{ push(@out,"section\t.data align=4\n"); }
+}
 
 1;
diff --git a/lib/libcrypto/perlasm/x86unix.pl b/lib/libcrypto/perlasm/x86unix.pl
deleted file mode 100644
index ae8f0964dc0..00000000000
--- a/lib/libcrypto/perlasm/x86unix.pl
+++ /dev/null
@@ -1,808 +0,0 @@
-#!/usr/local/bin/perl
-
-package x86unix;	# GAS actually...
-
-$label="L000";
-$const="";
-$constl=0;
-
-$align=($main'aout)?"4":"16";
-$under=($main'aout or $main'coff)?"_":"";
-$dot=($main'aout)?"":".";
-$com_start="#" if ($main'aout or $main'coff);
-
-sub main'asm_init_output { @out=(); }
-sub main'asm_get_output { return(@out); }
-sub main'get_labels { return(@labels); }
-sub main'external_label { push(@labels,@_); }
-
-if ($main'openbsd)
-	{
-	$com_start='/*';
-	$com_end='*/';
-	}
-
-if ($main'cpp)
-	{
-	$align="ALIGN";
-	$under="";
-	$com_start='/*';
-	$com_end='*/';
-	}
-
-%lb=(	'eax',	'%al',
-	'ebx',	'%bl',
-	'ecx',	'%cl',
-	'edx',	'%dl',
-	'ax',	'%al',
-	'bx',	'%bl',
-	'cx',	'%cl',
-	'dx',	'%dl',
-	);
-
-%hb=(	'eax',	'%ah',
-	'ebx',	'%bh',
-	'ecx',	'%ch',
-	'edx',	'%dh',
-	'ax',	'%ah',
-	'bx',	'%bh',
-	'cx',	'%ch',
-	'dx',	'%dh',
-	);
-
-%regs=(	'eax',	'%eax',
-	'ebx',	'%ebx',
-	'ecx',	'%ecx',
-	'edx',	'%edx',
-	'esi',	'%esi',
-	'edi',	'%edi',
-	'ebp',	'%ebp',
-	'esp',	'%esp',
-
-	'mm0',	'%mm0',
-	'mm1',	'%mm1',
-	'mm2',	'%mm2',
-	'mm3',	'%mm3',
-	'mm4',	'%mm4',
-	'mm5',	'%mm5',
-	'mm6',	'%mm6',
-	'mm7',	'%mm7',
-
-	'xmm0',	'%xmm0',
-	'xmm1',	'%xmm1',
-	'xmm2',	'%xmm2',
-	'xmm3',	'%xmm3',
-	'xmm4',	'%xmm4',
-	'xmm5',	'%xmm5',
-	'xmm6',	'%xmm6',
-	'xmm7',	'%xmm7',
-	);
-
-%reg_val=(
-	'eax',	0x00,
-	'ebx',	0x03,
-	'ecx',	0x01,
-	'edx',	0x02,
-	'esi',	0x06,
-	'edi',	0x07,
-	'ebp',	0x05,
-	'esp',	0x04,
-	);
-
-sub main'LB
-	{
-	(defined($lb{$_[0]})) || die "$_[0] does not have a 'low byte'\n";
-	return($lb{$_[0]});
-	}
-
-sub main'HB
-	{
-	(defined($hb{$_[0]})) || die "$_[0] does not have a 'high byte'\n";
-	return($hb{$_[0]});
-	}
-
-sub main'DWP
-	{
-	local($addr,$reg1,$reg2,$idx)=@_;
-
-	$ret="";
-	$addr =~ s/(^|[+ \t])([A-Za-z_]+[A-Za-z0-9_]+)($|[+ \t])/$1$under$2$3/;
-	$reg1="$regs{$reg1}" if defined($regs{$reg1});
-	$reg2="$regs{$reg2}" if defined($regs{$reg2});
-	$ret.=$addr if ($addr ne "") && ($addr ne 0);
-	if ($reg2 ne "")
-		{
-		if($idx ne "" && $idx != 0)
-		    { $ret.="($reg1,$reg2,$idx)"; }
-		else
-		    { $ret.="($reg1,$reg2)"; }
-	        }
-	elsif ($reg1 ne "")
-		{ $ret.="($reg1)" }
-	return($ret);
-	}
-
-sub main'QWP
-	{
-	return(&main'DWP(@_));
-	}
-
-sub main'BP
-	{
-	return(&main'DWP(@_));
-	}
-
-sub main'BC
-	{
-	return @_;
-	}
-
-sub main'DWC
-	{
-	return @_;
-	}
-
-#sub main'BP
-#	{
-#	local($addr,$reg1,$reg2,$idx)=@_;
-#
-#	$ret="";
-#
-#	$addr =~ s/(^|[+ \t])([A-Za-z_]+)($|[+ \t])/$1$under$2$3/;
-#	$reg1="$regs{$reg1}" if defined($regs{$reg1});
-#	$reg2="$regs{$reg2}" if defined($regs{$reg2});
-#	$ret.=$addr if ($addr ne "") && ($addr ne 0);
-#	if ($reg2 ne "")
-#		{ $ret.="($reg1,$reg2,$idx)"; }
-#	else
-#		{ $ret.="($reg1)" }
-#	return($ret);
-#	}
-
-sub main'mov	{ &out2("movl",@_); }
-sub main'movb	{ &out2("movb",@_); }
-sub main'and	{ &out2("andl",@_); }
-sub main'or	{ &out2("orl",@_); }
-sub main'shl	{ &out2("sall",@_); }
-sub main'shr	{ &out2("shrl",@_); }
-sub main'xor	{ &out2("xorl",@_); }
-sub main'xorb	{ &out2("xorb",@_); }
-sub main'add	{ &out2($_[0]=~/%[a-d][lh]/?"addb":"addl",@_); }
-sub main'adc	{ &out2("adcl",@_); }
-sub main'sub	{ &out2("subl",@_); }
-sub main'sbb	{ &out2("sbbl",@_); }
-sub main'rotl	{ &out2("roll",@_); }
-sub main'rotr	{ &out2("rorl",@_); }
-sub main'exch	{ &out2($_[0]=~/%[a-d][lh]/?"xchgb":"xchgl",@_); }
-sub main'cmp	{ &out2("cmpl",@_); }
-sub main'lea	{ &out2("leal",@_); }
-sub main'mul	{ &out1("mull",@_); }
-sub main'imul	{ &out2("imull",@_); }
-sub main'div	{ &out1("divl",@_); }
-sub main'jmp	{ &out1("jmp",@_); }
-sub main'jmp_ptr { &out1p("jmp",@_); }
-sub main'je	{ &out1("je",@_); }
-sub main'jle	{ &out1("jle",@_); }
-sub main'jne	{ &out1("jne",@_); }
-sub main'jnz	{ &out1("jnz",@_); }
-sub main'jz	{ &out1("jz",@_); }
-sub main'jge	{ &out1("jge",@_); }
-sub main'jl	{ &out1("jl",@_); }
-sub main'ja	{ &out1("ja",@_); }
-sub main'jae	{ &out1("jae",@_); }
-sub main'jb	{ &out1("jb",@_); }
-sub main'jbe	{ &out1("jbe",@_); }
-sub main'jc	{ &out1("jc",@_); }
-sub main'jnc	{ &out1("jnc",@_); }
-sub main'jno	{ &out1("jno",@_); }
-sub main'dec	{ &out1("decl",@_); }
-sub main'inc	{ &out1($_[0]=~/%[a-d][hl]/?"incb":"incl",@_); }
-sub main'push	{ &out1("pushl",@_); $stack+=4; }
-sub main'pop	{ &out1("popl",@_); $stack-=4; }
-sub main'pushf	{ &out0("pushfl"); $stack+=4; }
-sub main'popf	{ &out0("popfl"); $stack-=4; }
-sub main'not	{ &out1("notl",@_); }
-sub main'call	{	my $pre=$under;
-			foreach $i (%label)
-			{ if ($label{$i} eq $_[0]) { $pre=''; last; } }
-			&out1("call",$pre.$_[0]);
-		}
-sub main'call_ptr { &out1p("call",@_); }
-sub main'ret	{ &out0("ret"); }
-sub main'nop	{ &out0("nop"); }
-sub main'test	{ &out2("testl",@_); }
-sub main'bt	{ &out2("btl",@_); }
-sub main'leave	{ &out0("leave"); }
-sub main'cpuid	{ &out0(".byte\t0x0f,0xa2"); }
-sub main'rdtsc	{ &out0(".byte\t0x0f,0x31"); }
-sub main'halt	{ &out0("hlt"); }
-sub main'movz	{ &out2("movzbl",@_); }
-sub main'neg	{ &out1("negl",@_); }
-sub main'cld	{ &out0("cld"); }
-
-# SSE2
-sub main'emms	{ &out0("emms"); }
-sub main'movd	{ &out2("movd",@_); }
-sub main'movdqu	{ &out2("movdqu",@_); }
-sub main'movdqa	{ &out2("movdqa",@_); }
-sub main'movdq2q{ &out2("movdq2q",@_); }
-sub main'movq2dq{ &out2("movq2dq",@_); }
-sub main'paddq	{ &out2("paddq",@_); }
-sub main'pmuludq{ &out2("pmuludq",@_); }
-sub main'psrlq	{ &out2("psrlq",@_); }
-sub main'psllq	{ &out2("psllq",@_); }
-sub main'pxor	{ &out2("pxor",@_); }
-sub main'por	{ &out2("por",@_); }
-sub main'pand	{ &out2("pand",@_); }
-sub main'movq	{
-	local($p1,$p2,$optimize)=@_;
-	if ($optimize && $p1=~/^mm[0-7]$/ && $p2=~/^mm[0-7]$/)
-		# movq between mmx registers can sink Intel CPUs
-		{	push(@out,"\tpshufw\t\$0xe4,%$p2,%$p1\n");	}
-	else	{	&out2("movq",@_);				}
-	}
-
-# The bswapl instruction is new for the 486. Emulate if i386.
-sub main'bswap
-	{
-	if ($main'i386)
-		{
-		&main'comment("bswapl @_");
-		&main'exch(main'HB(@_),main'LB(@_));
-		&main'rotr(@_,16);
-		&main'exch(main'HB(@_),main'LB(@_));
-		}
-	else
-		{
-		&out1("bswapl",@_);
-		}
-	}
-
-sub out2
-	{
-	local($name,$p1,$p2)=@_;
-	local($l,$ll,$t);
-	local(%special)=(	"roll",0xD1C0,"rorl",0xD1C8,
-				"rcll",0xD1D0,"rcrl",0xD1D8,
-				"shll",0xD1E0,"shrl",0xD1E8,
-				"sarl",0xD1F8);
-	
-	if ((defined($special{$name})) && defined($regs{$p1}) && ($p2 == 1))
-		{
-		$op=$special{$name}|$reg_val{$p1};
-		$tmp1=sprintf(".byte %d\n",($op>>8)&0xff);
-		$tmp2=sprintf(".byte %d\t",$op     &0xff);
-		push(@out,$tmp1);
-		push(@out,$tmp2);
-
-		$p2=&conv($p2);
-		$p1=&conv($p1);
-		&main'comment("$name $p2 $p1");
-		return;
-		}
-
-	push(@out,"\t$name\t");
-	$t=&conv($p2).",";
-	$l=length($t);
-	push(@out,$t);
-	$ll=4-($l+9)/8;
-	$tmp1=sprintf("\t" x $ll);
-	push(@out,$tmp1);
-	push(@out,&conv($p1)."\n");
-	}
-
-sub out1
-	{
-	local($name,$p1)=@_;
-	local($l,$t);
-	local(%special)=("bswapl",0x0FC8);
-
-	if ((defined($special{$name})) && defined($regs{$p1}))
-		{
-		$op=$special{$name}|$reg_val{$p1};
-		$tmp1=sprintf(".byte %d\n",($op>>8)&0xff);
-		$tmp2=sprintf(".byte %d\t",$op     &0xff);
-		push(@out,$tmp1);
-		push(@out,$tmp2);
-
-		$p2=&conv($p2);
-		$p1=&conv($p1);
-		&main'comment("$name $p2 $p1");
-		return;
-		}
-
-	push(@out,"\t$name\t".&conv($p1)."\n");
-	}
-
-sub out1p
-	{
-	local($name,$p1)=@_;
-	local($l,$t);
-
-	push(@out,"\t$name\t*".&conv($p1)."\n");
-	}
-
-sub out0
-	{
-	push(@out,"\t$_[0]\n");
-	}
-
-sub conv
-	{
-	local($p)=@_;
-
-#	$p =~ s/0x([0-9A-Fa-f]+)/0$1h/;
-
-	$p=$regs{$p} if (defined($regs{$p}));
-
-	$p =~ s/^(-{0,1}[0-9A-Fa-f]+)$/\$$1/;
-	$p =~ s/^(0x[0-9A-Fa-f]+)$/\$$1/;
-	return $p;
-	}
-
-sub main'file
-	{
-	local($file)=@_;
-
-	if ($main'openbsd)
-		{ push(@out,"#include <machine/asm.h>\n"); }
-
-	local($tmp)=<<"EOF";
-	.file	"$file.s"
-EOF
-	push(@out,$tmp);
-	}
-
-sub main'function_begin
-	{
-	local($func,$junk,$llabel)=@_;
-
-	&main'external_label($func);
-	$func=$under.$func;
-
-	if ($main'openbsd)
-		{
-		push (@out, "\nENTRY($func)\n");
-		push (@out, "$llabel:\n") if $llabel;
-		goto skip;
-		}
-
-	local($tmp)=<<"EOF";
-.text
-.globl	$func
-EOF
-	push(@out,$tmp);
-	if ($main'cpp)
-		{ $tmp=push(@out,"TYPE($func,\@function)\n"); }
-	elsif ($main'coff)
-		{ $tmp=push(@out,".def\t$func;\t.scl\t2;\t.type\t32;\t.endef\n"); }
-	elsif ($main'aout and !$main'pic)
-		{ }
-	else	{ $tmp=push(@out,".type\t$func,\@function\n"); }
-	push(@out,".align\t$align\n");
-	push(@out,"$func:\n");
-skip:
-	$tmp=<<"EOF";
-	pushl	%ebp
-	pushl	%ebx
-	pushl	%esi
-	pushl	%edi
-
-EOF
-	push(@out,$tmp);
-	$stack=20;
-	}
-
-sub main'function_begin_B
-	{
-	local($func,$extra)=@_;
-
-	&main'external_label($func);
-	$func=$under.$func;
-
-	if ($main'openbsd)
-		{ push(@out, "\nENTRY($func)\n"); goto skip; }
-
-	local($tmp)=<<"EOF";
-.text
-.globl	$func
-EOF
-	push(@out,$tmp);
-	if ($main'cpp)
-		{ push(@out,"TYPE($func,\@function)\n"); }
-	elsif ($main'coff)
-		{ $tmp=push(@out,".def\t$func;\t.scl\t2;\t.type\t32;\t.endef\n"); }
-	elsif ($main'aout and !$main'pic)
-		{ }
-	else	{ push(@out,".type	$func,\@function\n"); }
-	push(@out,".align\t$align\n");
-	push(@out,"$func:\n");
-skip:
-	$stack=4;
-	}
-
-# Like function_begin_B but with static linkage
-sub main'function_begin_C
-	{
-	local($func,$extra)=@_;
-
-	&main'external_label($func);
-	$func=$under.$func;
-
-	if ($main'openbsd)
-		{
-			local($tmp)=<<"EOF";
-.text
-_ALIGN_TEXT
-.type $func,\@function
-$func:
-EOF
-			push(@out, $tmp);
-			goto skip;
-		}
-
-	local($tmp)=<<"EOF";
-.text
-.globl	$func
-EOF
-	push(@out,$tmp);
-	if ($main'cpp)
-		{ push(@out,"TYPE($func,\@function)\n"); }
-	elsif ($main'coff)
-		{ $tmp=push(@out,".def\t$func;\t.scl\t2;\t.type\t32;\t.endef\n"); }
-	elsif ($main'aout and !$main'pic)
-		{ }
-	else	{ push(@out,".type	$func,\@function\n"); }
-	push(@out,".align\t$align\n");
-	push(@out,"$func:\n");
-skip:
-	$stack=4;
-	}
-
-sub main'function_end
-	{
-	local($func)=@_;
-
-	$func=$under.$func;
-
-	local($tmp)=<<"EOF";
-	popl	%edi
-	popl	%esi
-	popl	%ebx
-	popl	%ebp
-	ret
-${dot}L_${func}_end:
-EOF
-	push(@out,$tmp);
-
-	if ($main'cpp)
-		{ push(@out,"SIZE($func,${dot}L_${func}_end-$func)\n"); }
-	elsif ($main'coff or $main'aout)
-                { }
-	else	{ push(@out,".size\t$func,${dot}L_${func}_end-$func\n"); }
-	push(@out,".ident	\"$func\"\n");
-	$stack=0;
-	%label=();
-	}
-
-sub main'function_end_A
-	{
-	local($func)=@_;
-
-	local($tmp)=<<"EOF";
-	popl	%edi
-	popl	%esi
-	popl	%ebx
-	popl	%ebp
-	ret
-EOF
-	push(@out,$tmp);
-	}
-
-sub main'function_end_B
-	{
-	local($func)=@_;
-
-	$func=$under.$func;
-
-	push(@out,"${dot}L_${func}_end:\n");
-	if ($main'cpp)
-		{ push(@out,"SIZE($func,${dot}L_${func}_end-$func)\n"); }
-        elsif ($main'coff or $main'aout)
-                { }
-	else	{ push(@out,".size\t$func,${dot}L_${func}_end-$func\n"); }
-	push(@out,".ident	\"$func\"\n");
-	$stack=0;
-	%label=();
-	}
-
-sub main'function_end_C { function_end_B(@_); }
-
-sub main'wparam
-	{
-	local($num)=@_;
-
-	return(&main'DWP($stack+$num*4,"esp","",0));
-	}
-
-sub main'stack_push
-	{
-	local($num)=@_;
-	$stack+=$num*4;
-	&main'sub("esp",$num*4);
-	}
-
-sub main'stack_pop
-	{
-	local($num)=@_;
-	$stack-=$num*4;
-	&main'add("esp",$num*4);
-	}
-
-sub main'swtmp
-	{
-	return(&main'DWP($_[0]*4,"esp","",0));
-	}
-
-# Should use swtmp, which is above esp.  Linix can trash the stack above esp
-#sub main'wtmp
-#	{
-#	local($num)=@_;
-#
-#	return(&main'DWP(-($num+1)*4,"esp","",0));
-#	}
-
-sub main'comment
-	{
-	if (!defined($com_start) or (!$main'openbsd && $main'elf))
-		{	# Regarding $main'elf above...
-			# GNU and SVR4 as'es use different comment delimiters,
-		push(@out,"\n");	# so we just skip ELF comments...
-		return;
-		}
-	foreach (@_)
-		{
-		if (/^\s*$/)
-			{ push(@out,"\n"); }
-		else
-			{ push(@out,"\t$com_start $_ $com_end\n"); }
-		}
-	}
-
-sub main'public_label
-	{
-	$label{$_[0]}="${under}${_[0]}"	if (!defined($label{$_[0]}));
-	push(@out,".globl\t$label{$_[0]}\n");
-	}
-
-sub main'label
-	{
-	if (!defined($label{$_[0]}))
-		{
-		$label{$_[0]}="${dot}${label}${_[0]}";
-		$label++;
-		}
-	return($label{$_[0]});
-	}
-
-sub main'set_label
-	{
-	if (!defined($label{$_[0]}))
-		{
-		$label{$_[0]}="${dot}${label}${_[0]}";
-		$label++;
-		}
-	if ($_[1]!=0)
-		{
-		if ($_[1]>1)	{ main'align($_[1]);		}
-		else
-			{
-			if ($main'openbsd)
-				{ push(@out,"_ALIGN_TEXT\n"); }
-			else
-				{ push(@out,".align $align\n"); }
-			}
-		}
-	push(@out,"$label{$_[0]}:\n");
-	}
-
-sub main'file_end
-	{
-	# try to detect if SSE2 or MMX extensions were used on ELF platform...
-	if ($main'elf && grep {/\b%[x]*mm[0-7]\b|OPENSSL_ia32cap_P\b/i} @out) {
-		local($tmp);
-
-		push (@out,"\n.section\t.bss\n");
-		push (@out,".comm\t${under}OPENSSL_ia32cap_P,4,4\n");
-
-		return;
-	}
-
-	if ($const ne "")
-		{
-		push(@out,".section .rodata\n");
-		push(@out,$const);
-		$const="";
-		}
-	}
-
-sub main'data_byte
-	{
-	push(@out,"\t.byte\t".join(',',@_)."\n");
-	}
-
-sub main'data_word
-	{
-	push(@out,"\t.long\t".join(',',@_)."\n");
-	}
-
-sub main'align
-	{
-	my $val=$_[0],$p2,$i;
-	if ($main'aout) {
-		for ($p2=0;$val!=0;$val>>=1) { $p2++; }
-		$val=$p2-1;
-		$val.=",0x90";
-	}
-	push(@out,".align\t$val\n");
-	if ($main'openbsd)
-		{ push(@out,"_ALIGN_TEXT\n"); }
-	else
-		{ push(@out,".align $tval\n"); }
-	}
-
-# debug output functions: puts, putx, printf
-
-sub main'puts
-	{
-	&pushvars();
-	&main'push('$Lstring' . ++$constl);
-	&main'call('puts');
-	$stack-=4;
-	&main'add("esp",4);
-	&popvars();
-
-	$const .= "Lstring$constl:\n\t.string \"@_[0]\"\n";
-	}
-
-sub main'putx
-	{
-	&pushvars();
-	&main'push($_[0]);
-	&main'push('$Lstring' . ++$constl);
-	&main'call('printf');
-	&main'add("esp",8);
-	$stack-=8;
-	&popvars();
-
-	$const .= "Lstring$constl:\n\t.string \"\%X\"\n";
-	}
-
-sub main'printf
-	{
-	$ostack = $stack;
-	&pushvars();
-	for ($i = @_ - 1; $i >= 0; $i--)
-		{
-		if ($i == 0) # change this to support %s format strings
-			{
-			&main'push('$Lstring' . ++$constl);
-			$const .= "Lstring$constl:\n\t.string \"@_[$i]\"\n";
-			}
-		else
-			{
-			if ($_[$i] =~ /([0-9]*)\(%esp\)/)
-				{
-				&main'push(($1 + $stack - $ostack) . '(%esp)');
-				}
-			else
-				{
-				&main'push($_[$i]);
-				}
-			}
-		}
-	&main'call('printf');
-	$stack-=4*@_;
-	&main'add("esp",4*@_);
-	&popvars();
-	}
-
-sub pushvars
-	{
-	&main'pushf();
-	&main'push("edx");
-	&main'push("ecx");
-	&main'push("eax");
-	}
-
-sub popvars
-	{
-	&main'pop("eax");
-	&main'pop("ecx");
-	&main'pop("edx");
-	&main'popf();
-	}
-
-sub main'picmeup
-	{
-	local($dst,$sym)=@_;
-	if ($main'cpp)
-		{
-		local($tmp)=<<___;
-#if (defined(ELF) || defined(SOL)) && defined(PIC)
-	call	1f
-1:	popl	$regs{$dst}
-	addl	\$_GLOBAL_OFFSET_TABLE_+[.-1b],$regs{$dst}
-	movl	$sym\@GOT($regs{$dst}),$regs{$dst}
-#else
-	leal	$sym,$regs{$dst}
-#endif
-___
-		push(@out,$tmp);
-		}
-	elsif ($main'openbsd)
-		{
-		push(@out, "#ifdef PIC\n");
-		push(@out, "\tPIC_PROLOGUE\n");
-		&main'mov($dst,"PIC_GOT($sym)");
-		push(@out, "\tPIC_EPILOGUE\n");
-		push(@out, "#else\n");
-		&main'lea($dst,&main'DWP($sym));
-		push(@out, "#endif\n");
-		}
-	elsif ($main'pic && ($main'elf || $main'aout))
-		{
-		&main'call(&main'label("PIC_me_up"));
-		&main'set_label("PIC_me_up");
-		&main'blindpop($dst);
-		&main'add($dst,"\$${under}_GLOBAL_OFFSET_TABLE_+[.-".
-				&main'label("PIC_me_up") . "]");
-		&main'mov($dst,&main'DWP($under.$sym."\@GOT",$dst));
-		}
-	else
-		{
-		&main'lea($dst,&main'DWP($sym));
-		}
-	}
-
-sub main'blindpop { &out1("popl",@_); }
-
-sub main'initseg
-	{
-	local($f)=@_;
-	local($tmp);
-	if ($main'elf)
-		{
-		$tmp=<<___;
-.section	.init
-		PIC_PROLOGUE
-		call	PIC_PLT($under$f)
-		PIC_EPILOGUE
-	jmp	.Linitalign
-.align	$align
-.Linitalign:
-___
-		}
-	elsif ($main'coff)
-		{
-		$tmp=<<___;	# applies to both Cygwin and Mingw
-.section	.ctors
-.long	$under$f
-___
-		}
-	elsif ($main'aout)
-		{
-		local($ctor)="${under}_GLOBAL_\$I\$$f";
-		$tmp=".text\n";
-		$tmp.=".type	$ctor,\@function\n" if ($main'pic);
-		$tmp.=<<___;	# OpenBSD way...
-.globl	$ctor
-.align	2
-$ctor:
-	jmp	$under$f
-___
-		}
-	push(@out,$tmp) if ($tmp);
-	}
-
-1;