freepascal.compiler/compiler/x86/itx86att.pas

{
    $Id$
    Copyright (c) 1998-2002 by Florian Klaempfl

    This unit contains the i386 AT&T instruction tables

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 ****************************************************************************
}
unit itx86att;

{$i fpcdefs.inc}

interface

    uses
      cginfo,cpubase;

    type
      TAttSuffix = (AttSufNONE,AttSufINT,AttSufFPU,AttSufFPUint);

    const
{$ifdef x86_64}
      {x86att.inc contains the name for each x86-64 mnemonic}
      gas_op2str:op2strtable={$i x64att.inc}
      gas_needsuffix:array[tasmop] of TAttSuffix={$i x64atts.inc}
{$else x86_64}
      {x86att.inc contains the name for each i386 mnemonic}
      gas_op2str:op2strtable={$i i386att.inc}
      gas_needsuffix:array[tasmop] of TAttSuffix={$i i386atts.inc}
{$endif x86_64}

{$ifdef x86_64}
     gas_opsize2str : array[topsize] of string[2] = ('',
       'b','w','l','bw','bl','wl','bq','wq','lq',
       's','l','q',
       's','l','t','d','q','v','x',
       '','',''
     );
{$else x86_64}
     gas_opsize2str : array[topsize] of string[2] = ('',
       'b','w','l','bw','bl','wl',
       's','l','q',
       's','l','t','d','q','v','',
       '','',''
     );
{$endif x86_64}


    function gas_regnum_search(const s:string):Tregister;
    function gas_regname(r:Tregister):string;


implementation

    uses
      cutils,verbose;

    const
      att_regname_table : array[tregisterindex] of string[7] = (
        {r386att.inc contains the AT&T name of each register.}
        {$i r386att.inc}
      );

      att_regname_index : array[tregisterindex] of tregisterindex = (
        {r386ari.inc contains an index which sorts att_regname_table by
         ATT name.}
        {$i r386ari.inc}
      );


    function findreg_by_attname(const s:string):byte;
      var
        i,p : tregisterindex;
      begin
        {Binary search.}
        p:=0;
        i:=regnumber_count_bsstart;
        repeat
          if (p+i<=high(tregisterindex)) and (att_regname_table[att_regname_index[p+i]]<=s) then
            p:=p+i;
          i:=i shr 1;
        until i=0;
        if att_regname_table[att_regname_index[p]]=s then
          findreg_by_attname:=att_regname_index[p]
        else
          findreg_by_attname:=0;
      end;


    function gas_regnum_search(const s:string):Tregister;
      begin
        result:=regnumber_table[findreg_by_attname(s)];
      end;


    function gas_regname(r:Tregister):string;
      var
        p : tregisterindex;
      begin
        p:=findreg_by_number(r);
        if p<>0 then
          result:=att_regname_table[p]
        else
          result:='%'+generic_regname(r);
      end;

end.
{
  $Log$
  Revision 1.4  2003-09-03 15:55:02  peter
    * NEWRA branch merged

  Revision 1.3.2.6  2003/08/31 15:46:26  peter
    * more updates for tregister

  Revision 1.3.2.5  2003/08/31 13:50:16  daniel
    * Remove sorting and use pregenerated indexes
    * Some work on making things compile

  Revision 1.3.2.4  2003/08/29 17:29:00  peter
    * next batch of updates

  Revision 1.3.2.3  2003/08/29 09:41:25  daniel
    * Further mkx86reg development

  Revision 1.3.2.2  2003/08/28 18:35:08  peter
    * tregister changed to cardinal

  Revision 1.3.2.1  2003/08/27 19:55:54  peter
    * first tregister patch

  Revision 1.3  2003/08/18 11:49:47  daniel
    * Made ATT asm writer work with -sr

  Revision 1.2  2003/07/06 15:31:21  daniel
    * Fixed register allocator. *Lots* of fixes.

  Revision 1.1  2003/05/22 21:33:08  peter
    * i386 att instruction table moved to separate unit

}