instruction_set.h

浙江大学的悟空嵌入式系统模拟器

/**
 *  Copyright (c) 2005 Zhejiang University, P.R.China
 *
 *  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.
 */ 

//=============================================================================
/**
 *  \class    Instruction_Set
 *
 *  \brief    All of the ppc instruction operations   
 *
 *  \author  Chenfeng Zhou <[e-mail]>
 *
 *  Created    : <2005-02-08 19:22:07 by Cheney Chow>
 *  Last update: <2005-02-12 16:42:02 by Cheney Chow>
 */
//=============================================================================

#ifndef _PPC_INSTRUCTION_SET_H_
#define _PPC_INSTRUCTION_SET_H_

#include "Core/Instruction.h"
#include "Core/HelperMacro.h"
#include "Types.h"

namespace PPC {

    class Instruction;
    
    class PPC_Instruction_Set : public Core::Instruction_Set
    {
    public:
        virtual ~PPC_Instruction_Set () {}

        //! execute the binary instruction
        virtual bool execute_instruction (PPC_Instr_T);

		//! Registers all instructions for this instruction set
		virtual void register_instructions() {}
        
    private:
        //! look up specified instruction handler;
		virtual Core::Instruction *classify (PPC_Instr_T);

        //! Add specified op handler to me;
		virtual register_instruction (Core::Instruction*) {}

        //! Extract first 6 bits (opcode)
        int extract_opcode (PPC_Instr_T);

    private:
        //! Indexed by the first 6 bits;
        static Core::Instruction *main_op_table_[];

		DECLARE_SINGLETON(PPC_Instruction_Set);
    };

    #include "Instruction_Set_i.h"
    
} // namespace PPC

#endif  // _PPC_INSTRUCTION_SET_H_