regfile_adaptor.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    Regfile_Adaptor
 *
 *  \brief    To adapt the Register_File class
 *
 *  \author  Chenfeng Zhou <[e-mail]>
 *
 *	$Id: Regfile_Adaptor.h,v 1.1 2005/06/16 06:01:51 qilj Exp $
 *
 *  Last update: <2005-02-09 18:55:21 by Cheney Chow>
 */
//=============================================================================

#ifndef _PPC_REGFILE_ADAPTOR_H_
#define _PPC_REGFILE_ADAPTOR_H_

#include <map>
#include <string>

#include "Core/Register.h"
#include "Types.h"
#include "Register.h"
#include "PPC.h"

namespace PPC {

	class Core::Register_File;
    
    class PPC_API Regfile_Adaptor
    {
    public:
        Regfile_Adaptor (Core::Register_File *);

        //! set regs to zero;
        int init ();

        //! get some register by index, just like array;
        PPC_Register& operator[] (PPC_u32 index);

		PPC_Register& get_spr (unsigned int spr_n);

		//! Get spr desciptions
		const std::string& get_spr_info (unsigned int spr_n);

    public:
        static void append_info (Core::Register_File::Config &,
                          const Core::Register_File::Register_Meta&);

	private:
		//! map spr number 
		//! at the end of init()
		void init_spr_map ();
        
    private:
        //! meta infomation for each register;
        static Core::Register_File::Register_Meta reg_info_[];
		static const int INFO_SIZE = NR_REG;

    private:
        Core::Register_File *reg_file_;
		std::map<SPR_Index, Reg_Index> spr_map_;
    };
    
} // namespace PPC
#endif  // _PPC_REGFILE_ADAPTOR_H_