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			925 lines
		
	
	
		
			29 KiB
		
	
	
	
		
			ObjectPascal
		
	
	
	
	
	
			
		
		
	
	
			925 lines
		
	
	
		
			29 KiB
		
	
	
	
		
			ObjectPascal
		
	
	
	
	
	
| {
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|     $Id$
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|     Copyright (c) 1998-2000 by Florian Klaempfl
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| 
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|     This unit implements an asmoutput class for the Nasm assembler with
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|     Intel syntax for the i386+
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| 
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|     This program is free software; you can redistribute it and/or modify
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|     it under the terms of the GNU General Public License as published by
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|     the Free Software Foundation; either version 2 of the License, or
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|     (at your option) any later version.
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| 
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|     This program is distributed in the hope that it will be useful,
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|     but WITHOUT ANY WARRANTY; without even the implied warranty of
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|     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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|     GNU General Public License for more details.
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| 
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|     You should have received a copy of the GNU General Public License
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|     along with this program; if not, write to the Free Software
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|     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 
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|  ****************************************************************************
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| }
 | |
| unit ag386nsm;
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| 
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| {$i defines.inc}
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| 
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| interface
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| 
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|     uses aasm,assemble;
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| 
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|     type
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|       T386NasmAssembler = class(texternalassembler)
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|         procedure WriteTree(p:taasmoutput);override;
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|         procedure WriteAsmList;override;
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|         procedure WriteExternals;
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|       end;
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| 
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|   implementation
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| 
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|     uses
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| {$ifdef delphi}
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|       sysutils,
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| {$endif}
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|       cutils,globtype,globals,systems,cclasses,
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|       fmodule,finput,verbose,cpubase,cpuasm
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|       ;
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| 
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|     const
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|       line_length = 64;
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| 
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|     var
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|       lastfileinfo : tfileposinfo;
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|       infile,
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|       lastinfile   : tinputfile;
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| 
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|    function fixline(s:string):string;
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|    {
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|      return s with all leading and ending spaces and tabs removed
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|    }
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|      var
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|        i,j,k : longint;
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|      begin
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|        i:=length(s);
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|        while (i>0) and (s[i] in [#9,' ']) do
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|         dec(i);
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|        j:=1;
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|        while (j<i) and (s[j] in [#9,' ']) do
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|         inc(j);
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|        for k:=j to i do
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|         if s[k] in [#0..#31,#127..#255] then
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|          s[k]:='.';
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|        fixline:=Copy(s,j,i-j+1);
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|      end;
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| 
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|     function single2str(d : single) : string;
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|       var
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|          hs : string;
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|          p : byte;
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|       begin
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|          str(d,hs);
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|       { nasm expects a lowercase e }
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|          p:=pos('E',hs);
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|          if p>0 then
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|           hs[p]:='e';
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|          p:=pos('+',hs);
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|          if p>0 then
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|           delete(hs,p,1);
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|          single2str:=lower(hs);
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|       end;
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| 
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|     function double2str(d : double) : string;
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|       var
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|          hs : string;
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|          p : byte;
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|       begin
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|          str(d,hs);
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|       { nasm expects a lowercase e }
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|          p:=pos('E',hs);
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|          if p>0 then
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|           hs[p]:='e';
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|          p:=pos('+',hs);
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|          if p>0 then
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|           delete(hs,p,1);
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|          double2str:=lower(hs);
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|       end;
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| 
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|     function extended2str(e : extended) : string;
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|       var
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|          hs : string;
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|          p : byte;
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|       begin
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|          str(e,hs);
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|       { nasm expects a lowercase e }
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|          p:=pos('E',hs);
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|          if p>0 then
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|           hs[p]:='e';
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|          p:=pos('+',hs);
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|          if p>0 then
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|           delete(hs,p,1);
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|          extended2str:=lower(hs);
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|       end;
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| 
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| 
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|     function comp2str(d : bestreal) : string;
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|       type
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|         pdouble = ^double;
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|       var
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|         c  : comp;
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|         dd : pdouble;
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|       begin
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| {$ifdef FPC}
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|          c:=comp(d);
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| {$else}
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|          c:=d;
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| {$endif}
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|          dd:=pdouble(@c); { this makes a bitwise copy of c into a double }
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|          comp2str:=double2str(dd^);
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|       end;
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| 
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| 
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|     function getreferencestring(var ref : treference) : string;
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|     var
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|       s     : string;
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|       first : boolean;
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|     begin
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|       if ref.is_immediate then
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|        begin
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|          getreferencestring:=tostr(ref.offset);
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|          exit;
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|        end
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|       else
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|       with ref do
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|         begin
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|           first:=true;
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|           inc(offset,offsetfixup);
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|           offsetfixup:=0;
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|           if ref.segment<>R_NO then
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|            s:='['+int_reg2str[segment]+':'
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|           else
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|            s:='[';
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|          if assigned(symbol) then
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|           begin
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|             s:=s+symbol.name;
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|             first:=false;
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|           end;
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|          if (base<>R_NO) then
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|           begin
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|             if not(first) then
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|              s:=s+'+'
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|             else
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|              first:=false;
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|              s:=s+int_reg2str[base];
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|           end;
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|          if (index<>R_NO) then
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|            begin
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|              if not(first) then
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|                s:=s+'+'
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|              else
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|                first:=false;
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|              s:=s+int_reg2str[index];
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|              if scalefactor<>0 then
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|                s:=s+'*'+tostr(scalefactor);
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|            end;
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|          if offset<0 then
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|            s:=s+tostr(offset)
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|          else if (offset>0) then
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|            s:=s+'+'+tostr(offset);
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|          if s[length(s)]='[' then
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|            s:=s+'0';
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|          s:=s+']';
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|         end;
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|        getreferencestring:=s;
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|      end;
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| 
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|     function sizestr(s:topsize;dest:boolean):string;
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|       begin
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|         case s of
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|            S_B : sizestr:='byte ';
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|            S_W : sizestr:='word ';
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|            S_L : sizestr:='dword ';
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|            S_IS : sizestr:='word ';
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|            S_IL : sizestr:='dword ';
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|            S_IQ : sizestr:='qword ';
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|            S_FS : sizestr:='dword ';
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|            S_FL : sizestr:='qword ';
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|            S_FX : sizestr:='tword ';
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|            S_BW : if dest then
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|                sizestr:='word '
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|              else
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|                sizestr:='byte ';
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|            S_BL : if dest then
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|                sizestr:='dword '
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|              else
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|                sizestr:='byte ';
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|            S_WL : if dest then
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|                sizestr:='dword '
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|              else
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|                sizestr:='word ';
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|           else { S_NO }
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|             sizestr:='';
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|         end;
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|       end;
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| 
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| 
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|     function getopstr(const o:toper;s : topsize; opcode: tasmop;ops:longint;dest : boolean) : string;
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|       var
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|         hs : string;
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|       begin
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|         case o.typ of
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|           top_reg :
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|             getopstr:=int_nasmreg2str[o.reg];
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|           top_const :
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|             begin
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|               if (ops=1) and (opcode<>A_RET) then
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|                getopstr:=sizestr(s,dest)+tostr(o.val)
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|               else
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|                getopstr:=tostr(o.val);
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|             end;
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|           top_symbol :
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|             begin
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|               if assigned(o.sym) then
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|                hs:='dword '+o.sym.name
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|               else
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|                hs:='dword ';
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|               if o.symofs>0 then
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|                hs:=hs+'+'+tostr(o.symofs)
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|               else
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|                if o.symofs<0 then
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|                 hs:=hs+tostr(o.symofs)
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|                else
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|                 if not(assigned(o.sym)) then
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|                  hs:=hs+'0';
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|               getopstr:=hs;
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|             end;
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|           top_ref :
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|             begin
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|               hs:=getreferencestring(o.ref^);
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|               if not ((opcode = A_LEA) or (opcode = A_LGS) or
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|                       (opcode = A_LSS) or (opcode = A_LFS) or
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|                       (opcode = A_LES) or (opcode = A_LDS) or
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|                       (opcode = A_SHR) or (opcode = A_SHL) or
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|                       (opcode = A_SAR) or (opcode = A_SAL) or
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|                       (opcode = A_OUT) or (opcode = A_IN)) then
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|                begin
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|                  hs:=sizestr(s,dest)+hs;
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|                end;
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|               getopstr:=hs;
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|             end;
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|           else
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|             internalerror(10001);
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|         end;
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|       end;
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| 
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|     function getopstr_jmp(const o:toper; op : tasmop) : string;
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|       var
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|         hs : string;
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|       begin
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|         case o.typ of
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|           top_reg :
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|             getopstr_jmp:=int_nasmreg2str[o.reg];
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|           top_ref :
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|             getopstr_jmp:=getreferencestring(o.ref^);
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|           top_const :
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|             getopstr_jmp:=tostr(o.val);
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|           top_symbol :
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|             begin
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|               hs:=o.sym.name;
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|               if o.symofs>0 then
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|                hs:=hs+'+'+tostr(o.symofs)
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|               else
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|                if o.symofs<0 then
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|                 hs:=hs+tostr(o.symofs);
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|               if (op=A_JCXZ) or (op=A_JECXZ) or
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|                  (op=A_LOOP) or (op=A_LOOPE) or
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|                  (op=A_LOOPNE) or (op=A_LOOPNZ) or
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|                  (op=A_LOOPZ) then
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|                 getopstr_jmp:=hs
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|               else
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|                 getopstr_jmp:='NEAR '+hs;
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|             end;
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|           else
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|             internalerror(10001);
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|         end;
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|       end;
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| 
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| 
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| {****************************************************************************
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|                                T386NasmAssembler
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|  ****************************************************************************}
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| 
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|     var
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|       LastSec : tsection;
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| 
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|     const
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|       ait_const2str:array[ait_const_32bit..ait_const_8bit] of string[8]=
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|         (#9'DD'#9,#9'DW'#9,#9'DB'#9);
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| 
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|     Function PadTabs(const p:string;addch:char):string;
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|     var
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|       s : string;
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|       i : longint;
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|     begin
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|       i:=length(p);
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|       if addch<>#0 then
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|        begin
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|          inc(i);
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|          s:=p+addch;
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|        end
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|       else
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|        s:=p;
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|       if i<8 then
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|        PadTabs:=s+#9#9
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|       else
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|        PadTabs:=s+#9;
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|     end;
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| 
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| 
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|     procedure T386NasmAssembler.WriteTree(p:taasmoutput);
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|     const
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|       allocstr : array[boolean] of string[10]=(' released',' allocated');
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|       nolinetai =[ait_label,
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|                   ait_regalloc,ait_tempalloc,
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|                   ait_stabn,ait_stabs,ait_section,
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|                   ait_cut,ait_marker,ait_align,ait_stab_function_name];
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|     var
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|       s : string;
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|       {prefix,
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|       suffix   : string; no need here }
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|       hp       : tai;
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|       counter,
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|       lines,
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|       i,j,l    : longint;
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|       InlineLevel : longint;
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|       consttyp : tait;
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|       found,
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|       do_line,
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|       quoted   : boolean;
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|       sep      : char;
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|     begin
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|       if not assigned(p) then
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|        exit;
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|       InlineLevel:=0;
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|       { lineinfo is only needed for codesegment (PFV) }
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|       do_line:=(cs_asm_source in aktglobalswitches) or
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|                ((cs_lineinfo in aktmoduleswitches)
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|                  and (p=codesegment));
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|       hp:=tai(p.first);
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|       while assigned(hp) do
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|        begin
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|          aktfilepos:=hp.fileinfo;
 | |
| 
 | |
|          if not(hp.typ in nolinetai) then
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|            begin
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|              if do_line then
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|               begin
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|               { load infile }
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|                 if lastfileinfo.fileindex<>hp.fileinfo.fileindex then
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|                  begin
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|                    infile:=current_module.sourcefiles.get_file(hp.fileinfo.fileindex);
 | |
|                    if assigned(infile) then
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|                     begin
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|                       { open only if needed !! }
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|                       if (cs_asm_source in aktglobalswitches) then
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|                        infile.open;
 | |
|                     end;
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|                    { avoid unnecessary reopens of the same file !! }
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|                    lastfileinfo.fileindex:=hp.fileinfo.fileindex;
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|                    { be sure to change line !! }
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|                    lastfileinfo.line:=-1;
 | |
|                  end;
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|               { write source }
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|                 if (cs_asm_source in aktglobalswitches) and
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|                    assigned(infile) then
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|                  begin
 | |
|                    if (infile<>lastinfile) then
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|                      begin
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|                        AsmWriteLn(target_asm.comment+'['+infile.name^+']');
 | |
|                        if assigned(lastinfile) then
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|                          lastinfile.close;
 | |
|                      end;
 | |
|                    if (hp.fileinfo.line<>lastfileinfo.line) and
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|                       ((hp.fileinfo.line<infile.maxlinebuf) or (InlineLevel>0)) then
 | |
|                      begin
 | |
|                        if (hp.fileinfo.line<>0) and
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|                           ((infile.linebuf^[hp.fileinfo.line]>=0) or (InlineLevel>0)) then
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|                          AsmWriteLn(target_asm.comment+'['+tostr(hp.fileinfo.line)+'] '+
 | |
|                            fixline(infile.GetLineStr(hp.fileinfo.line)));
 | |
|                        { set it to a negative value !
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|                        to make that is has been read already !! PM }
 | |
|                        if (infile.linebuf^[hp.fileinfo.line]>=0) then
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|                          infile.linebuf^[hp.fileinfo.line]:=-infile.linebuf^[hp.fileinfo.line]-1;
 | |
|                      end;
 | |
|                  end;
 | |
|                 lastfileinfo:=hp.fileinfo;
 | |
|                 lastinfile:=infile;
 | |
|               end;
 | |
|            end;
 | |
|          case hp.typ of
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|            ait_comment :
 | |
|              Begin
 | |
|                AsmWrite(target_asm.comment);
 | |
|                AsmWritePChar(tai_asm_comment(hp).str);
 | |
|                AsmLn;
 | |
|              End;
 | |
| 
 | |
|            ait_regalloc :
 | |
|              begin
 | |
|                if (cs_asm_regalloc in aktglobalswitches) then
 | |
|                  AsmWriteLn(target_asm.comment+'Register '+att_reg2str[tairegalloc(hp).reg]+
 | |
|                    allocstr[tairegalloc(hp).allocation]);
 | |
|              end;
 | |
| 
 | |
|            ait_tempalloc :
 | |
|              begin
 | |
|                if (cs_asm_tempalloc in aktglobalswitches) then
 | |
|                  AsmWriteLn(target_asm.comment+'Temp '+tostr(taitempalloc(hp).temppos)+','+
 | |
|                    tostr(taitempalloc(hp).tempsize)+allocstr[taitempalloc(hp).allocation]);
 | |
|              end;
 | |
| 
 | |
|            ait_section :
 | |
|              begin
 | |
|                if tai_section(hp).sec<>sec_none then
 | |
|                 begin
 | |
|                   AsmLn;
 | |
|                   AsmWriteLn('SECTION '+target_asm.secnames[tai_section(hp).sec]);
 | |
|                 end;
 | |
|                LastSec:=tai_section(hp).sec;
 | |
|              end;
 | |
| 
 | |
|            ait_align :
 | |
|              AsmWriteLn(#9'ALIGN '+tostr(tai_align(hp).aligntype));
 | |
| 
 | |
|            ait_datablock :
 | |
|              begin
 | |
|                if tai_datablock(hp).is_global then
 | |
|                 begin
 | |
|                   AsmWrite(#9'GLOBAL ');
 | |
|                   AsmWriteLn(tai_datablock(hp).sym.name);
 | |
|                 end;
 | |
|                AsmWrite(PadTabs(tai_datablock(hp).sym.name,':'));
 | |
|                AsmWriteLn('RESB'#9+tostr(tai_datablock(hp).size));
 | |
|              end;
 | |
| 
 | |
|            ait_const_32bit,
 | |
|            ait_const_16bit,
 | |
|            ait_const_8bit :
 | |
|              begin
 | |
|                AsmWrite(ait_const2str[hp.typ]+tostr(tai_const(hp).value));
 | |
|                consttyp:=hp.typ;
 | |
|                l:=0;
 | |
|                repeat
 | |
|                  found:=(not (tai(hp.next)=nil)) and (tai(hp.next).typ=consttyp);
 | |
|                  if found then
 | |
|                   begin
 | |
|                     hp:=tai(hp.next);
 | |
|                     s:=','+tostr(tai_const(hp).value);
 | |
|                     AsmWrite(s);
 | |
|                     inc(l,length(s));
 | |
|                   end;
 | |
|                until (not found) or (l>line_length);
 | |
|                AsmLn;
 | |
|              end;
 | |
| 
 | |
|            ait_const_symbol :
 | |
|              begin
 | |
|                AsmWrite(#9#9'DD'#9);
 | |
|                AsmWrite(tai_const_symbol(hp).sym.name);
 | |
|                if tai_const_symbol(hp).offset>0 then
 | |
|                  AsmWrite('+'+tostr(tai_const_symbol(hp).offset))
 | |
|                else if tai_const_symbol(hp).offset<0 then
 | |
|                  AsmWrite(tostr(tai_const_symbol(hp).offset));
 | |
|                AsmLn;
 | |
|              end;
 | |
| 
 | |
|            ait_const_rva :
 | |
|              begin
 | |
|                AsmWrite(#9#9'RVA'#9);
 | |
|                AsmWriteLn(tai_const_symbol(hp).sym.name);
 | |
|              end;
 | |
| 
 | |
|            ait_real_32bit :
 | |
|              AsmWriteLn(#9#9'DD'#9+single2str(tai_real_32bit(hp).value));
 | |
| 
 | |
|            ait_real_64bit :
 | |
|              AsmWriteLn(#9#9'DQ'#9+double2str(tai_real_64bit(hp).value));
 | |
| 
 | |
|            ait_real_80bit :
 | |
|              AsmWriteLn(#9#9'DT'#9+extended2str(tai_real_80bit(hp).value));
 | |
| 
 | |
|            ait_comp_64bit :
 | |
|              AsmWriteLn(#9#9'DQ'#9+comp2str(tai_real_80bit(hp).value));
 | |
| 
 | |
|            ait_string :
 | |
|              begin
 | |
|                counter := 0;
 | |
|                lines := tai_string(hp).len div line_length;
 | |
|              { separate lines in different parts }
 | |
|                if tai_string(hp).len > 0 then
 | |
|                 Begin
 | |
|                   for j := 0 to lines-1 do
 | |
|                    begin
 | |
|                      AsmWrite(#9#9'DB'#9);
 | |
|                      quoted:=false;
 | |
|                      for i:=counter to counter+line_length-1 do
 | |
|                         begin
 | |
|                           { it is an ascii character. }
 | |
|                           if (ord(tai_string(hp).str[i])>31) and
 | |
|                              (ord(tai_string(hp).str[i])<128) and
 | |
|                              (tai_string(hp).str[i]<>'"') then
 | |
|                               begin
 | |
|                                 if not(quoted) then
 | |
|                                     begin
 | |
|                                       if i>counter then
 | |
|                                         AsmWrite(',');
 | |
|                                       AsmWrite('"');
 | |
|                                     end;
 | |
|                                 AsmWrite(tai_string(hp).str[i]);
 | |
|                                 quoted:=true;
 | |
|                               end { if > 31 and < 128 and ord('"') }
 | |
|                           else
 | |
|                               begin
 | |
|                                   if quoted then
 | |
|                                       AsmWrite('"');
 | |
|                                   if i>counter then
 | |
|                                       AsmWrite(',');
 | |
|                                   quoted:=false;
 | |
|                                   AsmWrite(tostr(ord(tai_string(hp).str[i])));
 | |
|                               end;
 | |
|                        end; { end for i:=0 to... }
 | |
|                      if quoted then AsmWrite('"');
 | |
|                        AsmWrite(target_info.newline);
 | |
|                      inc(counter,line_length);
 | |
|                   end; { end for j:=0 ... }
 | |
|                 { do last line of lines }
 | |
|                 if counter<tai_string(hp).len then
 | |
|                   AsmWrite(#9#9'DB'#9);
 | |
|                 quoted:=false;
 | |
|                 for i:=counter to tai_string(hp).len-1 do
 | |
|                   begin
 | |
|                     { it is an ascii character. }
 | |
|                     if (ord(tai_string(hp).str[i])>31) and
 | |
|                        (ord(tai_string(hp).str[i])<128) and
 | |
|                        (tai_string(hp).str[i]<>'"') then
 | |
|                         begin
 | |
|                           if not(quoted) then
 | |
|                               begin
 | |
|                                 if i>counter then
 | |
|                                   AsmWrite(',');
 | |
|                                 AsmWrite('"');
 | |
|                               end;
 | |
|                           AsmWrite(tai_string(hp).str[i]);
 | |
|                           quoted:=true;
 | |
|                         end { if > 31 and < 128 and " }
 | |
|                     else
 | |
|                         begin
 | |
|                           if quoted then
 | |
|                             AsmWrite('"');
 | |
|                           if i>counter then
 | |
|                               AsmWrite(',');
 | |
|                           quoted:=false;
 | |
|                           AsmWrite(tostr(ord(tai_string(hp).str[i])));
 | |
|                         end;
 | |
|                   end; { end for i:=0 to... }
 | |
|                 if quoted then
 | |
|                   AsmWrite('"');
 | |
|                 end;
 | |
|                AsmLn;
 | |
|              end;
 | |
| 
 | |
|            ait_label :
 | |
|              begin
 | |
|                if tai_label(hp).l.is_used then
 | |
|                 AsmWriteLn(tai_label(hp).l.name+':');
 | |
|              end;
 | |
| 
 | |
|            ait_direct :
 | |
|              begin
 | |
|                AsmWritePChar(tai_direct(hp).str);
 | |
|                AsmLn;
 | |
|              end;
 | |
| 
 | |
|            ait_symbol :
 | |
|              begin
 | |
|                if tai_symbol(hp).is_global then
 | |
|                 begin
 | |
|                   AsmWrite(#9'GLOBAL ');
 | |
|                   AsmWriteLn(tai_symbol(hp).sym.name);
 | |
|                 end;
 | |
|                AsmWrite(tai_symbol(hp).sym.name);
 | |
|                if assigned(hp.next) and not(tai(hp.next).typ in
 | |
|                   [ait_const_32bit,ait_const_16bit,ait_const_8bit,
 | |
|                    ait_const_symbol,ait_const_rva,
 | |
|                    ait_real_32bit,ait_real_64bit,ait_real_80bit,ait_comp_64bit,ait_string]) then
 | |
|                 AsmWriteLn(':')
 | |
|              end;
 | |
| 
 | |
|            ait_symbol_end : ;
 | |
| 
 | |
|            ait_instruction :
 | |
|              begin
 | |
|              { Must be done with args in ATT order }
 | |
|                taicpu(hp).SetOperandOrder(op_att);
 | |
|                taicpu(hp).CheckNonCommutativeOpcodes;
 | |
|              { We need intel order, no At&t }
 | |
|                taicpu(hp).SetOperandOrder(op_intel);
 | |
|              { Reset
 | |
|                suffix:='';
 | |
|                prefix:='';}
 | |
|                s:='';
 | |
|                if ((taicpu(hp).opcode=A_FADDP) or
 | |
|                    (taicpu(hp).opcode=A_FMULP))
 | |
|                   and (taicpu(hp).ops=0) then
 | |
|                  begin
 | |
|                    taicpu(hp).ops:=2;
 | |
|                    taicpu(hp).oper[0].typ:=top_reg;
 | |
|                    taicpu(hp).oper[0].reg:=R_ST1;
 | |
|                    taicpu(hp).oper[1].typ:=top_reg;
 | |
|                    taicpu(hp).oper[1].reg:=R_ST;
 | |
|                  end;
 | |
|                if taicpu(hp).ops<>0 then
 | |
|                 begin
 | |
|                   if is_calljmp(taicpu(hp).opcode) then
 | |
|                    s:=#9+getopstr_jmp(taicpu(hp).oper[0],taicpu(hp).opcode)
 | |
|                   else
 | |
|                    begin
 | |
|                       { We need to explicitely set
 | |
|                         word prefix to get selectors
 | |
|                         to be pushed in 2 bytes  PM }
 | |
|                       if (taicpu(hp).opsize=S_W) and
 | |
|                          ((taicpu(hp).opcode=A_PUSH) or
 | |
|                           (taicpu(hp).opcode=A_POP)) and
 | |
|                           (taicpu(hp).oper[0].typ=top_reg) and
 | |
|                           ((taicpu(hp).oper[0].reg>=firstsreg) and
 | |
|                            (taicpu(hp).oper[0].reg<=lastsreg)) then
 | |
|                         AsmWriteln(#9#9'DB'#9'066h');
 | |
|                      for i:=0 to taicpu(hp).ops-1 do
 | |
|                       begin
 | |
|                         if i=0 then
 | |
|                          sep:=#9
 | |
|                         else
 | |
|                          sep:=',';
 | |
|                         s:=s+sep+getopstr(taicpu(hp).oper[i],taicpu(hp).opsize,taicpu(hp).opcode,
 | |
|                           taicpu(hp).ops,(i=2));
 | |
|                       end;
 | |
|                    end;
 | |
|                 end;
 | |
|                if taicpu(hp).opcode=A_FWAIT then
 | |
|                 AsmWriteln(#9#9'DB'#9'09bh')
 | |
|                else
 | |
|                 AsmWriteLn(#9#9+{prefix+}int_op2str[taicpu(hp).opcode]+
 | |
|                   cond2str[taicpu(hp).condition]+{suffix+}s);
 | |
|              end;
 | |
| {$ifdef GDB}
 | |
|            ait_stabn,
 | |
|            ait_stabs,
 | |
|            ait_force_line,
 | |
|            ait_stab_function_name : ;
 | |
| {$endif GDB}
 | |
| 
 | |
|            ait_cut :
 | |
|              begin
 | |
|              { only reset buffer if nothing has changed }
 | |
|                if AsmSize=AsmStartSize then
 | |
|                 AsmClear
 | |
|                else
 | |
|                 begin
 | |
|                   AsmClose;
 | |
|                   DoAssemble;
 | |
|                   AsmCreate(tai_cut(hp).place);
 | |
|                 end;
 | |
|              { avoid empty files }
 | |
|                while assigned(hp.next) and (tai(hp.next).typ in [ait_cut,ait_section,ait_comment]) do
 | |
|                 begin
 | |
|                   if tai(hp.next).typ=ait_section then
 | |
|                     lastsec:=tai_section(hp.next).sec;
 | |
|                   hp:=tai(hp.next);
 | |
|                 end;
 | |
|                if lastsec<>sec_none then
 | |
|                  AsmWriteLn('SECTION '+target_asm.secnames[lastsec]);
 | |
|                AsmStartSize:=AsmSize;
 | |
|              end;
 | |
| 
 | |
|            ait_marker :
 | |
|              if tai_marker(hp).kind=InlineStart then
 | |
|                inc(InlineLevel)
 | |
|              else if tai_marker(hp).kind=InlineEnd then
 | |
|                dec(InlineLevel);
 | |
| 
 | |
|            else
 | |
|              internalerror(10000);
 | |
|          end;
 | |
|          hp:=tai(hp.next);
 | |
|        end;
 | |
|     end;
 | |
| 
 | |
| 
 | |
|     var
 | |
|       currentasmlist : TExternalAssembler;
 | |
| 
 | |
|     procedure writeexternal(p:tnamedindexitem);
 | |
|       begin
 | |
|         if tasmsymbol(p).defbind=AB_EXTERNAL then
 | |
|          currentasmlist.AsmWriteln('EXTERN'#9+p.name);
 | |
|       end;
 | |
| 
 | |
|     procedure T386NasmAssembler.WriteExternals;
 | |
|       begin
 | |
|         currentasmlist:=self;
 | |
|         AsmSymbolList.foreach_static({$ifdef fpcprocvar}@{$endif}writeexternal);
 | |
|       end;
 | |
| 
 | |
| 
 | |
|     procedure T386NasmAssembler.WriteAsmList;
 | |
|     begin
 | |
| {$ifdef EXTDEBUG}
 | |
|       if assigned(current_module.mainsource) then
 | |
|        comment(v_info,'Start writing nasm-styled assembler output for '+current_module.mainsource^);
 | |
| {$endif}
 | |
|       LastSec:=sec_none;
 | |
|       AsmWriteLn('BITS 32');
 | |
|       AsmLn;
 | |
| 
 | |
|       countlabelref:=false;
 | |
|       lastfileinfo.line:=-1;
 | |
|       lastfileinfo.fileindex:=0;
 | |
|       lastinfile:=nil;
 | |
| 
 | |
|       WriteExternals;
 | |
| 
 | |
|     { Nasm doesn't support stabs
 | |
|       WriteTree(debuglist);}
 | |
| 
 | |
|       WriteTree(codesegment);
 | |
|       WriteTree(datasegment);
 | |
|       WriteTree(consts);
 | |
|       WriteTree(rttilist);
 | |
|       WriteTree(resourcestringlist);
 | |
|       WriteTree(bsssegment);
 | |
|       Writetree(importssection);
 | |
|       { exports are written by DLLTOOL
 | |
|         if we use it so don't insert it twice (PM) }
 | |
|       if not UseDeffileForExport and assigned(exportssection) then
 | |
|         Writetree(exportssection);
 | |
|       Writetree(resourcesection);
 | |
|       countlabelref:=true;
 | |
| 
 | |
|       AsmLn;
 | |
| {$ifdef EXTDEBUG}
 | |
|       if assigned(current_module.mainsource) then
 | |
|        comment(v_info,'Done writing nasm-styled assembler output for '+current_module.mainsource^);
 | |
| {$endif EXTDEBUG}
 | |
|    end;
 | |
| 
 | |
| 
 | |
| {*****************************************************************************
 | |
|                                   Initialize
 | |
| *****************************************************************************}
 | |
| 
 | |
|     const
 | |
|        as_i386_nasmcoff_info : tasminfo =
 | |
|           (
 | |
|             id           : as_i386_nasmcoff;
 | |
|             idtxt  : 'NASMCOFF';
 | |
|             asmbin : 'nasm';
 | |
|             asmcmd : '-f coff -o $OBJ $ASM';
 | |
|             supported_target : target_i386_go32v2;
 | |
|             outputbinary: false;
 | |
|             allowdirect : true;
 | |
|             externals : true;
 | |
|             needar : true;
 | |
|             labelprefix_only_inside_procedure: false;
 | |
|             labelprefix : '..@';
 | |
|             comment : '; ';
 | |
|             secnames : ('',
 | |
|               '.text','.data','.bss',
 | |
|               '.idata2','.idata4','.idata5','.idata6','.idata7','.edata',
 | |
|               '.stab','.stabstr')
 | |
|           );
 | |
| 
 | |
|        as_i386_nasmwin32_info : tasminfo =
 | |
|           (
 | |
|             id           : as_i386_nasmwin32;
 | |
|             idtxt  : 'NASMWIN32';
 | |
|             asmbin : 'nasm';
 | |
|             asmcmd : '-f win32 -o $OBJ $ASM';
 | |
|             supported_target : target_i386_win32;
 | |
|             outputbinary: false;
 | |
|             allowdirect : true;
 | |
|             externals : true;
 | |
|             needar : true;
 | |
|             labelprefix_only_inside_procedure: false;
 | |
|             labelprefix : '..@';
 | |
|             comment : '; ';
 | |
|             secnames : ('',
 | |
|               '.text','.data','.bss',
 | |
|               '.idata2','.idata4','.idata5','.idata6','.idata7','.edata',
 | |
|               '.stab','.stabstr')
 | |
|           );
 | |
| 
 | |
|        as_i386_nasmobj_info : tasminfo =
 | |
|           (
 | |
|             id           : as_i386_nasmobj;
 | |
|             idtxt  : 'NASMOBJ';
 | |
|             asmbin : 'nasm';
 | |
|             asmcmd : '-f obj -o $OBJ $ASM';
 | |
|             supported_target : target_any; { what should I write here ?? }
 | |
|             outputbinary: false;
 | |
|             allowdirect : true;
 | |
|             externals : true;
 | |
|             needar : true;
 | |
|             labelprefix_only_inside_procedure: false;
 | |
|             labelprefix : '..@';
 | |
|             comment : '; ';
 | |
|             secnames : ('',
 | |
|               '.text','.data','.bss',
 | |
|               '.idata2','.idata4','.idata5','.idata6','.idata7','.edata',
 | |
|               '.stab','.stabstr')
 | |
|           );
 | |
| 
 | |
|        as_i386_nasmelf_info : tasminfo =
 | |
|           (
 | |
|             id           : as_i386_nasmelf;
 | |
|             idtxt  : 'NASMELF';
 | |
|             asmbin : 'nasm';
 | |
|             asmcmd : '-f elf -o $OBJ $ASM';
 | |
|             supported_target : target_i386_linux;
 | |
|             outputbinary: false;
 | |
|             allowdirect : true;
 | |
|             externals : true;
 | |
|             needar : true;
 | |
|             labelprefix_only_inside_procedure: false;
 | |
|             labelprefix : '..@';
 | |
|             comment : '; ';
 | |
|             secnames : ('',
 | |
|               '.text','.data','.bss',
 | |
|               '.idata2','.idata4','.idata5','.idata6','.idata7','.edata',
 | |
|               '.stab','.stabstr')
 | |
|           );
 | |
| 
 | |
| 
 | |
| initialization
 | |
|   RegisterAssembler(as_i386_nasmcoff_info,T386NasmAssembler);
 | |
|   RegisterAssembler(as_i386_nasmwin32_info,T386NasmAssembler);
 | |
|   RegisterAssembler(as_i386_nasmobj_info,T386NasmAssembler);
 | |
|   RegisterAssembler(as_i386_nasmelf_info,T386NasmAssembler);
 | |
| end.
 | |
| {
 | |
|   $Log$
 | |
|   Revision 1.11  2001-05-06 17:13:23  jonas
 | |
|     * completed incomplete typed constant records
 | |
| 
 | |
|   Revision 1.10  2001/04/21 15:33:03  peter
 | |
|     * stupid bug, finalization to initialization renaming
 | |
| 
 | |
|   Revision 1.9  2001/04/21 12:09:00  peter
 | |
|     * fixed bug 1472 (merged)
 | |
| 
 | |
|   Revision 1.8  2001/04/18 22:02:00  peter
 | |
|     * registration of targets and assemblers
 | |
| 
 | |
|   Revision 1.7  2001/04/13 01:22:17  peter
 | |
|     * symtable change to classes
 | |
|     * range check generation and errors fixed, make cycle DEBUG=1 works
 | |
|     * memory leaks fixed
 | |
| 
 | |
|   Revision 1.6  2001/03/05 21:39:11  peter
 | |
|     * changed to class with common TAssembler also for internal assembler
 | |
| 
 | |
|   Revision 1.5  2001/02/20 21:36:39  peter
 | |
|     * tasm/masm fixes merged
 | |
| 
 | |
|   Revision 1.4  2001/01/13 20:24:24  peter
 | |
|     * fixed operand order that got mixed up for external writers after
 | |
|       my previous assembler block valid instruction check
 | |
| 
 | |
|   Revision 1.3  2000/12/25 00:07:31  peter
 | |
|     + new tlinkedlist class (merge of old tstringqueue,tcontainer and
 | |
|       tlinkedlist objects)
 | |
| 
 | |
|   Revision 1.2  2000/11/29 00:30:43  florian
 | |
|     * unused units removed from uses clause
 | |
|     * some changes for widestrings
 | |
| 
 | |
|   Revision 1.1  2000/10/15 09:47:42  peter
 | |
|     * moved to i386/
 | |
| 
 | |
|   Revision 1.6  2000/09/24 15:06:11  peter
 | |
|     * use defines.inc
 | |
| 
 | |
|   Revision 1.5  2000/08/27 16:11:49  peter
 | |
|     * moved some util functions from globals,cobjects to cutils
 | |
|     * splitted files into finput,fmodule
 | |
| 
 | |
|   Revision 1.4  2000/08/20 17:38:21  peter
 | |
|     * smartlinking fixed for linux (merged)
 | |
| 
 | |
|   Revision 1.3  2000/07/13 12:08:24  michael
 | |
|   + patched to 1.1.0 with former 1.09patch from peter
 | |
| 
 | |
|   Revision 1.2  2000/07/13 11:32:30  michael
 | |
|   + removed logs
 | |
| 
 | |
| }
 | 
