{
    $Id: itcpugas.pas,v 1.4 2004/01/04 21:18:10 jonas Exp $
    Copyright (c) 1998-2002 by Florian Klaempfl

    This unit contains the PowerPC GAS 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 itcpugas;

{$i fpcdefs.inc}

interface

    uses
      cpubase,cgbase;

    const
      gas_op2str : array[tasmop] of string[14] = ('<none>',
        'add','add.','addo','addo.','addc','addc.','addco','addco.',
        'adde','adde.','addeo','addeo.','addi','addic','addic.','addis',
        'addme','addme.','addmeo','addmeo.','addze','addze.','addzeo',
        'addzeo.','and','and.','andc','andc.','andi.','andis.','b',
        'ba','bl','bla','bc','bca','bcl','bcla','bcctr','bcctrl','bclr',
        'bclrl','cmp','cmpi','cmpl','cmpli','cntlzw','cntlzw.','crand',
        'crandc','creqv','crnand','crnor','cror','crorc','crxor','dcba',
        'dcbf','dcbi','dcbst','dcbt','dcbtst','dcbz','divw','divw.','divwo','divwo.',
        'divwu','divwu.','divwuo','divwuo.','eciwx','ecowx','eieio','eqv',
        'eqv.','extsb','extsb.','extsh','extsh.','fabs','fabs.','fadd',
        'fadd.','fadds','fadds.','fcmpo','fcmpu','fctiw','fctiw.','fctiwz',
        'fctiwz.','fdiv','fdiv.','fdivs','fdivs.','fmadd','fmadd.','fmadds',
        'fmadds.','fmr','fmsub','fmsub.','fmsubs','fmsubs.','fmul','fmul.',
        'fmuls','fmuls.','fnabs','fnabs.','fneg','fneg.','fnmadd',
        'fnmadd.','fnmadds','fnmadds.','fnmsub','fnmsub.','fnmsubs',
        'fnmsubs.','fres','fres.','frsp','frsp.','frsqrte','frsqrte.',
        'fsel','fsel.','fsqrt','fsqrt.','fsqrts','fsqrts.','fsub','fsub.',
        'fsubs','fsubs.','icbi','isync','lbz','lbzu','lbzux','lbzx',
        'lfd','lfdu','lfdux','lfdx','lfs','lfsu','lfsux','lfsx','lha',
        'lhau','lhaux','lhax','hbrx','lhz','lhzu','lhzux','lhzx','lmw',
        'lswi','lswx','lwarx','lwbrx','lwz','lwzu','lwzux','lwzx','mcrf',
        'mcrfs','mcrxr','lcrxe','mfcr','mffs','maffs.','mfmsr','mfspr','mfsr',
        'mfsrin','mftb','mtcrf','mtfd0','mtfsb1','mtfsf','mtfsf.',
        'mtfsfi','mtfsfi.','mtmsr','mtspr','mtsr','mtsrin','mulhw',
        'mulhw.','mulhwu','mulhwu.','mulli','mullw','mullw.','mullwo',
        'mullwo.','nand','nand.','neg','neg.','nego','nego.','nor','nor.',
        'or','or.','orc','orc.','ori','oris', 'rfi', 'rlwimi', 'rlwimi.',
        'rlwinm', 'rlwinm.','rlwnm','sc','slw', 'slw.', 'sraw', 'sraw.',
        'srawi', 'srawi.','srw', 'srw.', 'stb', 'stbu', 'stbux','stbx','stfd',
        'stfdu', 'stfdux', 'stfdx', 'stfiwx', 'stfs', 'stfsu', 'stfsux', 'stfsx',
        'sth', 'sthbrx', 'sthu', 'sthux', 'sthx', 'stmw', 'stswi', 'stswx', 'stw',
        'stwbrx', 'stwcx.', 'stwu', 'stwux', 'stwx', 'subf', 'subf.', 'subfo',
        'subfo.', 'subfc', 'subc.', 'subfco', 'subfco.', 'subfe', 'subfe.',
        'subfeo', 'subfeo.', 'subfic', 'subfme', 'subfme.', 'subfmeo', 'subfmeo.',
        'subfze', 'subfze.', 'subfzeo', 'subfzeo.', 'sync', 'tlbia', 'tlbie',
        'tlbsync', 'tw', 'twi', 'xor', 'xor.', 'xori', 'xoris',
        { some simplified mnemonics }
        'subi', 'subis', 'subic', 'subic.', 'sub', 'sub.', 'subo', 'subo.',
        'subc', 'subc.', 'subco', 'subco.', 'cmpwi', 'cmpw', 'cmplwi', 'cmplw',
        'extlwi', 'extlwi.', 'extrwi', 'extrwi.', 'inslwi', 'inslwi.', 'insrwi',
        'insrwi.', 'rotlwi', 'rotlwi.', 'rotlw', 'rotlw.', 'slwi', 'slwi.',
        'srwi', 'srwi.', 'clrlwi', 'clrlwi.', 'clrrwi', 'clrrwi.', 'clrslwi',
        'clrslwi.', 'blr', 'bctr', 'blrl', 'bctrl', 'crset', 'crclr', 'crmove',
        'crnot', 'mt', 'mf','nop', 'li', 'lis', 'la', 'mr','mr.','not', 'mtcr', 'mtlr', 'mflr',
        'mtctr', 'mfctr');

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


implementation

    uses
      globtype,globals,
      cutils,verbose, systems;

    const
      gas_regname_table : array[tregisterindex] of string[7] = (
        {$i rppcgas.inc}
      );

      gas_regname_short_table : array[tregisterindex] of string[7] = (
        {$i rppcgss.inc}
      );

      gas_regname_index : array[tregisterindex] of tregisterindex = (
        {$i rppcgri.inc}
      );


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


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


    function gas_regname(r:Tregister):string;
      var
        p : longint;
      begin
        p:=findreg_by_number(r);
        if p<>0 then
          if (cs_create_smart in aktmoduleswitches) and
             (target_info.system <> system_powerpc_darwin) then
            result:=gas_regname_short_table[p]
          else
            result:=gas_regname_table[p]
        else
          result:=generic_regname(r);
      end;

end.
{
  $Log: itcpugas.pas,v $
  Revision 1.4  2004/01/04 21:18:10  jonas
      + as_darwin assembler type (labels start with L)
      * never generate register->number mappings for Darwin
      * always use real register names for Darwin

  Revision 1.3  2003/12/10 22:19:27  florian
    + short gas register names for smartlinking added

  Revision 1.2  2003/11/15 19:00:10  florian
    * fixed ppc assembler reader

  Revision 1.1  2003/11/12 16:05:40  florian
    * assembler readers OOPed
    + typed currency constants
    + typed 128 bit float constants if the CPU supports it

  Revision 1.2  2003/10/01 20:34:49  peter
    * procinfo unit contains tprocinfo
    * cginfo renamed to cgbase
    * moved cgmessage to verbose
    * fixed ppc and sparc compiles

  Revision 1.1  2003/09/03 19:35:24  peter
    * powerpc compiles again
}
