Subversion Repositories 1000base-x

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

////                                                              ////

////  File name "tb_utils.v"                                         ////

////                                                              ////

////  This file is part of the :                                  ////

////                                                              ////

//// "1000BASE-X IEEE 802.3-2008 Clause 36 - PCS project"         ////

////                                                              ////

////  http://opencores.org/project,1000base-x                     ////

////                                                              ////

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

////      - D.W.Pegler Cambridge Broadband Networks Ltd           ////

////                                                              ////

////      { peglerd@gmail.com, dwp@cambridgebroadand.com }        ////

////                                                              ////

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

////                                                              ////

//// Copyright (C) 2009 AUTHORS. All rights reserved.             ////

////                                                              ////

//// 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                     ////

////                                                              ////

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

////                                                              ////

//// Model of the  IEEE 802.3-2008 Clause 22 MDIO/MDC management  ////

////                                                              ////

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

`include "timescale_tb.v"

package tb_utils;

  class VirIntfHandle;

   virtual serial_model_if      serial_model;

   // GMII models

   virtual gmii_tx_if           gmii_tx_model;

   virtual gmii_rx_if           gmii_rx_model;

   // 8B/10B models

   virtual encoder_8b_tx_if     encoder_8b_tx_model;

   virtual encoder_10b_rx_if    encoder_10b_rx_model;

   virtual decoder_8b_rx_if     decoder_8b_rx_model;

  endclass

  function automatic string hexformat(int data[], string fmt="0x%02x", string joiner=", ");

    string buffer = "";

    string temp;

    for(int i=0; i<data.size(); i++)

      begin

        $sformat(temp, fmt, data[i]);

        if(i!=0)

          buffer = {buffer, joiner, temp};

        else

          buffer = {buffer, temp};

      end

    return buffer;

  endfunction

  function automatic string hexpretty(int data[], int n_start=4, int n_end=4);

    int n = data.size();

    if(n < n_start+n_end)

      return hexformat(data, "0x%02x", ",");

    else

      begin

        int head[] = new[n_start];

        int tail[] = new[n_end];

        string s;

        for(int i=0; i<n_start; i++)

          head[i] = data[i];

        for(int i=0; i<n_end; i++)

          tail[i] = data[n-n_end+i];

        $sformat(s, "%s...%s",

                 hexformat(head, "0x%02x", ","),

                 hexformat(tail, "0x%02x", ",")

                );

        return s;

      end

  endfunction

endpackage