From libdes 4.01

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@1924 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/des/asm/x86ms.pl

@@ -0,0 +1,223 @@
+#!/usr/local/bin/perl
+
+package x86ms;
+
+$label="L000";
+
+%lb=(	'eax',	'al',
+	'ebx',	'bl',
+	'ecx',	'cl',
+	'edx',	'dl',
+	'ax',	'al',
+	'bx',	'bl',
+	'cx',	'cl',
+	'dx',	'dl',
+	);
+
+%hb=(	'eax',	'ah',
+	'ebx',	'bh',
+	'ecx',	'ch',
+	'edx',	'dh',
+	'ax',	'ah',
+	'bx',	'bh',
+	'cx',	'ch',
+	'dx',	'dh',
+	);
+
+sub main'LB
+	{
+	(defined($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,$idx)=@_;
+	local($t);
+	local($ret)="DWORD PTR ";
+
+	$addr =~ s/^\s+//;
+	if ($addr =~ /^(.+)\+(.+)$/)
+		{
+		$reg2=&conv($1);
+		$addr="_$2";
+		}
+	elsif ($addr =~ /^[_a-zA-Z]/)
+		{
+		$addr="_$addr";
+		}
+
+	$reg1="$regs{$reg1}" if defined($regs{$reg1});
+	$reg2="$regs{$reg2}" if defined($regs{$reg2});
+	$ret.=$addr if ($addr ne "") && ($addr ne 0);
+	if ($reg2 ne "")
+		{
+		$t="";
+		$t="*$idx" if ($idx != 0);
+		$ret.="[$reg2$t+$reg1]";
+		}
+	else
+		{
+		$ret.="[$reg1]"
+		}
+	return($ret);
+	}
+
+sub main'mov	{ &out2("mov",@_); }
+sub main'movb	{ &out2("mov",@_); }
+sub main'and	{ &out2("and",@_); }
+sub main'or	{ &out2("or",@_); }
+sub main'shl	{ &out2("shl",@_); }
+sub main'shr	{ &out2("shr",@_); }
+sub main'xor	{ &out2("xor",@_); }
+sub main'add	{ &out2("add",@_); }
+sub main'sub	{ &out2("sub",@_); }
+sub main'rotl	{ &out2("rol",@_); }
+sub main'rotr	{ &out2("ror",@_); }
+sub main'exch	{ &out2("xchg",@_); }
+sub main'cmp	{ &out2("cmp",@_); }
+sub main'dec	{ &out1("dec",@_); }
+sub main'jmp	{ &out1("jmp",@_); }
+sub main'je	{ &out1("je",@_); }
+sub main'jz	{ &out1("jz",@_); }
+sub main'push	{ &out1("push",@_); }
+sub main'call	{ &out1("call",'_'.$_[0]); }
+
+
+sub out2
+	{
+	local($name,$p1,$p2)=@_;
+	local($l,$t);
+
+	print "\t$name\t";
+	$t=&conv($p1).",";
+	$l=length($t);
+	print $t;
+	$l=4-($l+9)/8;
+	print "\t" x $l;
+	print &conv($p2);
+	print "\n";
+	}
+
+sub out1
+	{
+	local($name,$p1)=@_;
+	local($l,$t);
+
+	print "\t$name\t";
+	print &conv($p1);
+	print "\n";
+	}
+
+sub conv
+	{
+	local($p)=@_;
+
+	$p =~ s/0x([0-9A-Fa-f]+)/0$1h/;
+	return $p;
+	}
+
+sub main'file
+	{
+	local($file)=@_;
+
+	print <<"EOF";
+	TITLE	$file.asm
+        .386
+.model FLAT
+EOF
+	}
+
+sub main'function_begin
+	{
+	local($func,$num)=@_;
+
+	$params=$num*4;
+
+	print <<"EOF";
+_TEXT	SEGMENT
+PUBLIC	_$func
+EXTRN	_des_SPtrans:DWORD
+_$func PROC NEAR
+	push	ebp
+	push	ebx
+	push	esi
+	push	edi
+EOF
+	$stack=20;
+	}
+
+sub main'function_end
+	{
+	local($func)=@_;
+
+	print <<"EOF";
+	pop	edi
+	pop	esi
+	pop	ebx
+	pop	ebp
+	ret
+_$func ENDP
+_TEXT	ENDS
+EOF
+	$stack=0;
+	%label=();
+	}
+
+sub main'file_end
+	{
+	print "END\n"
+	}
+
+sub main'wparam
+	{
+	local($num)=@_;
+
+	return(&main'DWP($stack+$num*4,"esp","",0));
+	}
+
+sub main'wtmp
+	{
+	local($num)=@_;
+
+	return(&main'DWP($stack+$params+$num*4,"esp","",0));
+	}
+
+sub main'comment
+	{
+	foreach (@_)
+		{
+		print "\t; $_\n";
+		}
+	}
+
+sub main'label
+	{
+	if (!defined($label{$_[0]}))
+		{
+		$label{$_[0]}="\$${label}${_[0]}";
+		$label++;
+		}
+	return($label{$_[0]});
+	}
+
+sub main'set_label
+	{
+	if (!defined($label{$_[0]}))
+		{
+		$label{$_[0]}="${label}${_[0]}";
+		$label++;
+		}
+	print "$label{$_[0]}:\n";
+	}
+
+sub main'file_end
+        {
+	print "END\n";
+        }