Subversion Repositories dbg_interface

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

////                                                              ////

////  dbg_register.v                                              ////

////                                                              ////

////                                                              ////

////  This file is part of the SoC/OpenRISC Development Interface ////

////  http://www.opencores.org/cores/DebugInterface/              ////

////                                                              ////

////                                                              ////

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

////       Igor Mohor                                             ////

////       igorm@opencores.org                                    ////

////                                                              ////

////                                                              ////

////  All additional information is avaliable in the README.txt   ////

////  file.                                                       ////

////                                                              ////

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

////                                                              ////

//// Copyright (C) 2000,2001 Authors                              ////

////                                                              ////

//// 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  2001/10/19 11:40:02  mohor

// dbg_timescale.v changed to timescale.v This is done for the simulation of

// few different cores in a single project.

//

// Revision 1.1.1.1  2001/09/13 13:49:19  mohor

// Initial official release.

//

//

//

//

//

// synopsys translate_off

`include "timescale.v"

// synopsys translate_on

module dbg_register(DataIn, DataOut, Write, Clk, Reset, Default);

parameter WIDTH = 8; // default parameter of the register width

input [WIDTH-1:0] DataIn;

input Write;

input Clk;

input Reset;

input [WIDTH-1:0] Default;

output [WIDTH-1:0] DataOut;

reg    [WIDTH-1:0] DataOut;

//always @ (posedge Clk or posedge Reset)

always @ (posedge Clk)

begin

  if(Reset)

    DataOut[WIDTH-1:0]<=#1 Default;

  else

    begin

      if(Write)                         // write

        DataOut[WIDTH-1:0]<=#1 DataIn[WIDTH-1:0];

    end

end

endmodule   // Register