Subversion Repositories scarm

///////////////////////////////////////////////////////////////////////////////

// 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

//////////////////////////////////////////////////////////////////////

///////////////////////////////////////////////////////////////////              

//          

//  Original Author: Allen Tao Zhong,

//  University of Electronic Science and Technology in China

//  email: zhong@opencores.org

//  info   This is a SystemC ARM model 

//   

//

///////////////////////////////////////////////////////////////////////////////

// scIF.h: interface for the scIF class.

//

//////////////////////////////////////////////////////////////////////

#include<systemc.h>

#include <sc_mslib.h>

#include "scTypes.h"

enum ARI {ARI_ALU, ARI_INC, ARI_REG, ARI_NONE};

class scIF:public sc_module

{

public: //ports

        sc_in<bool> in_b_Clock;

        sc_outmaster<uint32_t> out_n_Addr;//  address bus

        sc_inoutslave<uint32_t>  inout_n_Data; //Instruction bus

        sc_in<uint32_t>  in_n_PC;

        sc_out<uint32_t> out_n_Instruction;

        sc_out<uint32_t> out_n_NPC;

        sc_in<bool_t>    in_b_Flush;

public:

        SC_HAS_PROCESS(scIF);

        scIF(const sc_module_name name_):sc_module(name_)

        {

       //s_n_IR=0;//nop

           SC_METHOD(entry);

           sensitive_pos<<in_b_Clock;

       SC_METHOD(increase_pc);

           sensitive<<s_n_IR;

        }

        virtual ~scIF();

private:

        sc_signal<uint32_t> s_n_IR;

        sc_signal<uint32_t> s_n_NPC;

private:

        void increase_pc();

        uint32_t  read_mem_data(uint32_t);

        void entry(void);

};