Subversion Repositories sc2v

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

////                                                              ////

////  AES subbytes module header                                  ////

////                                                              ////

////  This file is part of the SystemC AES                        ////

////                                                              ////

////  Description:                                                ////

////  Subbytes stage header for AES algorithm                     ////

////                                                              ////

////  To Do:                                                      ////

////   - done                                                     ////

////                                                              ////

////  Author(s):                                                  ////

////      - Javier Castillo, jcastilo@opencores.org               ////

////                                                              ////

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

////                                                              ////

//// Copyright (C) 2000 Authors and OPENCORES.ORG                 ////

////                                                              ////

//// This source file may be used and distributed without         ////

//// restriction provided that this copyright statement is not    ////

//// removed from the file and that any derivative work contains  ////

//// the original copyright notice and the associated disclaimer. ////

////                                                              ////

//// This source file is free software; you can redistribute it   ////

//// and/or modify it under the terms of the GNU Lesser General   ////

//// Public License as published by the Free Software Foundation; ////

//// either version 2.1 of the License, or (at your option) any   ////

//// later version.                                               ////

////                                                              ////

//// This source 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 Lesser General Public License for more ////

//// details.                                                     ////

////                                                              ////

//// You should have received a copy of the GNU Lesser General    ////

//// Public License along with this source; if not, download it   ////

//// from http://www.opencores.org/lgpl.shtml                     ////

////                                                              ////

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

//

// CVS Revision History

//

// $Log: not supported by cvs2svn $

// Revision 1.2  2004/08/30 14:44:44  jcastillo

// Code Formater used to give better appearance to SystemC code

//

// Revision 1.1.1.1  2004/07/05 09:46:22  jcastillo

// First import

//

#include "systemc.h"

SC_MODULE(subbytes)

{

        sc_in<bool> clk;

        sc_in<bool> reset;

        sc_in<bool> start_i;

        sc_in<bool> decrypt_i;

        sc_in<sc_biguint <128> > data_i;

        sc_out<bool> ready_o;

        sc_out<sc_biguint<128> > data_o;

        //To sbox

        sc_out<sc_uint<8> > sbox_data_o;

        sc_in<sc_uint<8> > sbox_data_i;

        sc_out<bool>sbox_decrypt_o;

        void sub();

        void registers();

        sc_signal<sc_uint<5> > state, next_state;

        sc_signal<sc_biguint<128> > data_reg, next_data_reg;

        sc_signal<bool> next_ready_o;

        SC_CTOR(subbytes)

        {

                SC_METHOD(registers);

                sensitive_pos << clk;

                sensitive_neg << reset;

                SC_METHOD(sub);

                sensitive << decrypt_i << start_i << state << data_i << sbox_data_i << data_reg;

        }

};