Subversion Repositories sc2v

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

////                                                              ////

////  MD5 header                                                  ////

////                                                              ////

////  This file is part of the SystemC MD5                        ////

////                                                              ////

////  Description:                                                ////

////  MD5 top file header                                         ////

////                                                              ////

////  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 1.1.1.1  2004/10/08 14:04:10  jcastillo

// First import

//

// Revision 1.1.1.1  2004/09/08 16:24:49  jcastillo

// Initial release

//

#include "systemc.h"

SC_MODULE (md5)

{

  sc_in < bool > clk;

  sc_in < bool > reset;

  sc_in < bool > load_i;

  sc_out < bool > ready_o;

  sc_in < bool > newtext_i;

  //Input must be padded and in little endian mode

  sc_in < sc_biguint < 128 > >data_i;

  sc_out < sc_biguint < 128 > >data_o;

  //Signals

  sc_signal < sc_uint < 32 > >ar, br, cr, dr;

  sc_signal < sc_uint < 32 > >next_ar, next_br, next_cr, next_dr;

  sc_signal < sc_uint < 32 > >A, B, C, D;

  sc_signal < sc_uint < 32 > >next_A, next_B, next_C, next_D;

  sc_signal < bool > next_ready_o;

  sc_signal < sc_biguint < 128 > >next_data_o;

  sc_signal < sc_biguint < 512 > >message, next_message;

  sc_signal < bool > generate_hash, hash_generated, next_generate_hash;

  sc_signal < sc_uint < 3 > >getdata_state, next_getdata_state;

  sc_signal < sc_uint < 2 > >round, next_round;

  sc_signal < sc_uint < 6 > >round64, next_round64;

  sc_signal < sc_uint < 44 > >t;

  sc_signal < sc_uint < 32 > >func_out;

  void md5_getdata ();

  void reg_signal ();

  void round64FSM ();

  void md5_rom ();

  void funcs ();

  SC_CTOR (md5)

  {

    SC_METHOD (reg_signal);

    sensitive_pos (clk);

    sensitive_neg (reset);

    SC_METHOD (md5_getdata);

    sensitive << newtext_i << data_i << load_i << getdata_state <<

      hash_generated << message;

    sensitive << func_out << A << B << C << D << ar << br << cr << dr <<

      generate_hash;

    SC_METHOD (round64FSM);

    sensitive << newtext_i << round << round64 << ar << br << cr << dr <<

      generate_hash << func_out;

    sensitive << getdata_state << A << B << C << D;

    SC_METHOD (md5_rom);

    sensitive << round64;

    SC_METHOD (funcs);

    sensitive << t << ar << br << cr << dr << round << message << func_out;

  }

};