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

//                                                              //

//  Waveform Dumping Control                                    //

//                                                              //

//  This file is part of the Amber project                      //

//  http://www.opencores.org/project,amber                      //

//                                                              //

//  Description                                                 //

//  Its useful in very long simulations to be able to record    //

//  a set of signals for a limited window of time, so           //

//  that the dump file does not get too large.                  //

//                                                              //

//  Author(s):                                                  //

//      - Conor Santifort, csantifort.amber@gmail.com           //

//                                                              //

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

//                                                              //

// Copyright (C) 2010 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                     //

//                                                              //

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

`timescale  1 ns / 1 ps

`include "global_defines.v"

module dumpvcd();

// ======================================

// Dump Waves to VCD File

// ======================================

`ifdef AMBER_DUMP_VCD

initial

    begin

    $display ("VCD Dump enabled from %d to %d",

    ( `AMBER_DUMP_START                ),

    ( `AMBER_DUMP_START + `AMBER_DUMP_LENGTH ) );

    $dumpfile(`AMBER_VCD_FILE);

    $dumpvars(1, `U_TB.clk_count);

    $dumpvars(1, `U_DECOMPILE.xINSTRUCTION_EXECUTE);

    $dumpvars(1, `U_EXECUTE.o_write_enable);

    $dumpvars(1, `U_EXECUTE.o_exclusive);

    $dumpvars(1, `U_EXECUTE.o_write_data);

    $dumpvars(1, `U_EXECUTE.base_address);

    $dumpvars(1, `U_EXECUTE.pc);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r0);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r1);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r2);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r3);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r4);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r5);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r6);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r7);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r8);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r9);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r10);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r11);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r12);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r13_out);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r14_out);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r14_irq);

    $dumpvars(1, `U_EXECUTE.u_register_bank.r15);

    $dumpvars(1, `U_FETCH);

    $dumpvars(1, `U_CACHE);

    $dumpvars(1, `U_DECODE);

    $dumpvars(1, `U_WISHBONE);

    $dumpvars(1, `U_AMBER);

    `ifdef AMBER_A25_CORE

    $dumpvars(1, `U_MEM);

    $dumpvars(1, `U_DCACHE);

    `endif

    $dumpoff;

    end

always @(posedge `U_DECOMPILE.i_clk)

    begin

    if ( `U_DECOMPILE.clk_count == 10 )

        begin

        $dumpon;

        $display("\nDump on at  %d ticks", `U_DECOMPILE.clk_count);

        end

    if ( `U_DECOMPILE.clk_count == 20 )

        begin

        $dumpoff;

        $display("\nDump off at %d ticks", `U_DECOMPILE.clk_count);

        end

    if ( `U_DECOMPILE.clk_count == ( `AMBER_DUMP_START + 0 ) )

        begin

        $dumpon;

        $display("\nDump on at  %d ticks", `U_DECOMPILE.clk_count);

        end

    if ( `U_DECOMPILE.clk_count == ( `AMBER_DUMP_START + `AMBER_DUMP_LENGTH ) )

        begin

        $dumpoff;

        $display("\nDump off at %d ticks", `U_DECOMPILE.clk_count);

        end

    `ifdef AMBER_TERMINATE

    if ( `U_DECOMPILE.clk_count == ( `AMBER_DUMP_START + `AMBER_DUMP_LENGTH + 100) )

        begin

        $display("\nAutomatic test termination after dump has completed");

        `TB_ERROR_MESSAGE

        end

    `endif

    end

`endif

endmodule