freepascal.compiler/compiler/powerpc/cpuasm.pas

{
    $Id$
    Copyright (c) 1999-2001 by Jonas Maebe

    Contains the assembler object for the PowerPC

    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 cpuasm;

{$i defines.inc}

interface

uses
  cclasses,tainst,
  aasm,globals,verbose,
  cpubase;

    type
      taicpu = class(taicpu_abstract)
         constructor op_none(op : tasmop);

         constructor op_reg(op : tasmop;_op1 : tregister);
         constructor op_const(op : tasmop;_op1 : longint);

         constructor op_reg_reg(op : tasmop;_op1,_op2 : tregister);
         constructor op_reg_ref(op : tasmop;_op1 : tregister;const _op2 : treference);
         constructor op_reg_const(op:tasmop; _op1: tregister; _op2: longint);
         constructor op_const_reg(op:tasmop; _op1: longint; _op2: tregister);

         constructor op_const_const(op : tasmop;_op1,_op2 : longint);

         constructor op_reg_reg_reg(op : tasmop;_op1,_op2,_op3 : tregister);
         constructor op_reg_reg_const(op : tasmop;_op1,_op2 : tregister; _op3: Longint);
         constructor op_reg_reg_sym_ofs(op : tasmop;_op1,_op2 : tregister; _op3: tasmsymbol;_op3ofs: longint);
         constructor op_reg_reg_ref(op : tasmop;_op1,_op2 : tregister; const _op3: treference);
         constructor op_const_reg_reg(op : tasmop;_op1 : longint;_op2, _op3 : tregister);
         constructor op_const_reg_const(op : tasmop;_op1 : longint;_op2 : tregister;_op3 : longint);

         constructor op_reg_reg_reg_reg(op : tasmop;_op1,_op2,_op3,_op4 : tregister);
         constructor op_reg_bool_reg_reg(op : tasmop;_op1: tregister;_op2:boolean;_op3,_op4:tregister);
         constructor op_reg_bool_reg_const(op : tasmop;_op1: tregister;_op2:boolean;_op3:tregister;_op4: longint);

         constructor op_reg_reg_const_const_const(op : tasmop;_op1,_op2 : tregister;_op3,_op4,_op5 : Longint);


         { this is for Jmp instructions }
         constructor op_cond_sym(op : tasmop;cond:TAsmCond;_op1 : tasmsymbol);
         constructor op_const_const_sym(op : tasmop;_op1,_op2 : longint;_op3: tasmsymbol);


         constructor op_sym(op : tasmop;_op1 : tasmsymbol);
         constructor op_sym_ofs(op : tasmop;_op1 : tasmsymbol;_op1ofs:longint);
         constructor op_reg_sym_ofs(op : tasmop;_op1 : tregister;_op2:tasmsymbol;_op2ofs : longint);
         constructor op_sym_ofs_ref(op : tasmop;_op1 : tasmsymbol;_op1ofs:longint;const _op2 : treference);

         procedure loadbool(opidx:longint;_b:boolean);

         destructor destroy;override;
      end;

      tai_align = class(tai_align_abstract)
        { nothing to add }
      end;

    procedure InitAsm;
    procedure DoneAsm;


implementation

{*****************************************************************************
                                 taicpu Constructors
*****************************************************************************}

    procedure taicpu.loadbool(opidx:longint;_b:boolean);
      begin
        if opidx>=ops then
         ops:=opidx+1;
        with oper[opidx] do
         begin
           if typ=top_ref then
            dispose(ref);
           b:=_b;
           typ:=top_bool;
         end;
      end;


    constructor taicpu.op_none(op : tasmop);
      begin
         inherited create(op);
      end;


    constructor taicpu.op_reg(op : tasmop;_op1 : tregister);
      begin
         inherited create(op);
         ops:=1;
         loadreg(0,_op1);
      end;


    constructor taicpu.op_const(op : tasmop;_op1 : longint);
      begin
         inherited create(op);
         ops:=1;
         loadconst(0,_op1);
      end;


    constructor taicpu.op_reg_reg(op : tasmop;_op1,_op2 : tregister);
      begin
         inherited create(op);
         ops:=2;
         loadreg(0,_op1);
         loadreg(1,_op2);
      end;

    constructor taicpu.op_reg_const(op:tasmop; _op1: tregister; _op2: longint);
      begin
         inherited create(op);
         ops:=2;
         loadreg(0,_op1);
         loadconst(1,_op2);
      end;

     constructor taicpu.op_const_reg(op:tasmop; _op1: longint; _op2: tregister);
      begin
         inherited create(op);
         ops:=2;
         loadconst(0,_op1);
         loadreg(1,_op2);
      end;


    constructor taicpu.op_reg_ref(op : tasmop;_op1 : tregister;const _op2 : treference);
      begin
         inherited create(op);
         ops:=2;
         loadreg(0,_op1);
         loadref(1,_op2);
      end;


    constructor taicpu.op_const_const(op : tasmop;_op1,_op2 : longint);
      begin
         inherited create(op);
         ops:=2;
         loadconst(0,_op1);
         loadconst(1,_op2);
      end;


    constructor taicpu.op_reg_reg_reg(op : tasmop;_op1,_op2,_op3 : tregister);
      begin
         inherited create(op);
         ops:=3;
         loadreg(0,_op1);
         loadreg(1,_op2);
         loadreg(2,_op3);
      end;

     constructor taicpu.op_reg_reg_const(op : tasmop;_op1,_op2 : tregister; _op3: Longint);
       begin
         inherited create(op);
         ops:=3;
         loadreg(0,_op1);
         loadreg(1,_op2);
         loadconst(2,_op3);
      end;

     constructor taicpu.op_reg_reg_sym_ofs(op : tasmop;_op1,_op2 : tregister; _op3: tasmsymbol;_op3ofs: longint);
       begin
         inherited create(op);
         ops:=3;
         loadreg(0,_op1);
         loadreg(1,_op2);
         loadsymbol(0,_op3,_op3ofs);
      end;

     constructor taicpu.op_reg_reg_ref(op : tasmop;_op1,_op2 : tregister; const _op3: treference);
       begin
         inherited create(op);
         ops:=3;
         loadreg(0,_op1);
         loadreg(1,_op2);
         loadref(2,_op3);
      end;

    constructor taicpu.op_const_reg_reg(op : tasmop;_op1 : longint;_op2, _op3 : tregister);
      begin
         inherited create(op);
         ops:=3;
         loadconst(0,_op1);
         loadreg(1,_op2);
         loadreg(2,_op3);
      end;

     constructor taicpu.op_const_reg_const(op : tasmop;_op1 : longint;_op2 : tregister;_op3 : longint);
      begin
         inherited create(op);
         ops:=3;
         loadconst(0,_op1);
         loadreg(1,_op2);
         loadconst(2,_op3);
      end;


     constructor taicpu.op_reg_reg_reg_reg(op : tasmop;_op1,_op2,_op3,_op4 : tregister);
      begin
         inherited create(op);
         ops:=4;
         loadreg(0,_op1);
         loadreg(1,_op2);
         loadreg(2,_op3);
         loadreg(3,_op4);
      end;

     constructor taicpu.op_reg_bool_reg_reg(op : tasmop;_op1: tregister;_op2:boolean;_op3,_op4:tregister);
      begin
         inherited create(op);
         ops:=4;
         loadreg(0,_op1);
         loadbool(1,_op2);
         loadreg(2,_op3);
         loadreg(3,_op4);
      end;

     constructor taicpu.op_reg_bool_reg_const(op : tasmop;_op1: tregister;_op2:boolean;_op3:tregister;_op4: longint);
      begin
         inherited create(op);
         ops:=4;
         loadreg(0,_op1);
         loadbool(0,_op2);
         loadreg(0,_op3);
         loadconst(0,_op4);
      end;

     constructor taicpu.op_reg_reg_const_const_const(op : tasmop;_op1,_op2 : tregister;_op3,_op4,_op5 : Longint);
      begin
         inherited create(op);
         ops:=5;
         loadreg(0,_op1);
         loadreg(1,_op2);
         loadconst(2,_op3);
         loadconst(3,_op4);
         loadconst(4,_op5);
      end;

    constructor taicpu.op_cond_sym(op : tasmop;cond:TAsmCond;_op1 : tasmsymbol);
      begin
         inherited create(op);
         condition:=cond;
         ops:=1;
         loadsymbol(0,_op1,0);
      end;

     constructor taicpu.op_const_const_sym(op : tasmop;_op1,_op2 : longint; _op3: tasmsymbol);
      begin
         inherited create(op);
         ops:=3;
         loadconst(0,_op1);
         loadconst(1,_op2);
         loadsymbol(2,_op3,0);
      end;


    constructor taicpu.op_sym(op : tasmop;_op1 : tasmsymbol);
      begin
         inherited create(op);
         ops:=1;
         loadsymbol(0,_op1,0);
      end;


    constructor taicpu.op_sym_ofs(op : tasmop;_op1 : tasmsymbol;_op1ofs:longint);
      begin
         inherited create(op);
         ops:=1;
         loadsymbol(0,_op1,_op1ofs);
      end;


     constructor taicpu.op_reg_sym_ofs(op : tasmop;_op1 : tregister;_op2:tasmsymbol;_op2ofs : longint);
      begin
         inherited create(op);
         ops:=2;
         loadreg(0,_op1);
         loadsymbol(1,_op2,_op2ofs);
      end;


    constructor taicpu.op_sym_ofs_ref(op : tasmop;_op1 : tasmsymbol;_op1ofs:longint;const _op2 : treference);
      begin
         inherited create(op);
         ops:=2;
         loadsymbol(0,_op1,_op1ofs);
         loadref(1,_op2);
      end;

    destructor taicpu.destroy;
      var
        i : longint;
      begin
          for i:=ops-1 downto 0 do
            if (oper[i].typ=top_ref) then
              dispose(oper[i].ref);
        inherited destroy;
      end;


    procedure InitAsm;
      begin
      end;


    procedure DoneAsm;
      begin
      end;

end.
{
  $Log$
  Revision 1.5  2002-05-14 17:28:10  peter
    * synchronized cpubase between powerpc and i386
    * moved more tables from cpubase to cpuasm
    * tai_align_abstract moved to tainst, cpuasm must define
      the tai_align class now, which may be empty

  Revision 1.4  2002/05/13 19:52:46  peter
    * a ppcppc can be build again

  Revision 1.3  2001/12/29 15:28:58  jonas
    * powerpc/cgcpu.pas compiles :)
    * several powerpc-related fixes
    * cpuasm unit is now based on common tainst unit
    + nppcmat unit for powerpc (almost complete)

  Revision 1.2  2001/08/26 13:31:04  florian
    * some cg reorganisation
    * some PPC updates

  Revision 1.2  2001/08/26 13:29:34  florian
    * some cg reorganisation
    * some PPC updates

  Revision 1.1  2000/07/13 06:30:12  michael
    + Initial import

  Revision 1.5  2000/01/07 01:14:58  peter
    * updated copyright to 2000

  Revision 1.4  1999/08/25 12:00:24  jonas
    * changed pai386, paippc and paiapha (same for tai*) to paicpu (taicpu)

  Revision 1.3  1999/08/06 16:41:11  jonas
    * PowerPC compiles again, several routines implemented in cgcpu.pas
    * added constant to cpubase of alpha and powerpc for maximum
      number of operands

  Revision 1.2  1999/08/04 12:59:24  jonas
    * all tokes now start with an underscore
    * PowerPC compiles!!

  Revision 1.1  1999/08/03 23:37:53  jonas
    + initial implementation for PowerPC based on the Alpha stuff
}