top.sv

This is OVM 2.0 source code .Very useful for developing system verilog Env

// $Id: top.sv,v 1.10 2008/08/27 15:56:51 redelman Exp $
//----------------------------------------------------------------------
//   Copyright 2007-2008 Mentor Graphics Corporation
//   Copyright 2007-2008 Cadence Design Systems, Inc.
//   All Rights Reserved Worldwide
//
//   Licensed under the Apache License, Version 2.0 (the
//   "License"); you may not use this file except in
//   compliance with the License.  You may obtain a copy of
//   the License at
//
//       http://www.apache.org/licenses/LICENSE-2.0
//
//   Unless required by applicable law or agreed to in
//   writing, software distributed under the License is
//   distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
//   CONDITIONS OF ANY KIND, either express or implied.  See
//   the License for the specific language governing
//   permissions and limitations under the License.
//----------------------------------------------------------------------


/*
About: configuration/automated
This test  will focus on making auto configuration settings using the ovm_component related config methods.

Configuration settings are stored in each component instance. 

Then a search is made to verify that those components full names match the field_name that had been set.
 


To get a more details about the auto config methods of the ovm componenet, refer to the file:
	- ovm/src/base/ovm_component.svh , the configuration related part.

	

The following configuration interfaces virtual methods will be override:

void set_config_int (string inst_name,string field_name,ovm_bitstream_t value)

void set_config_object (string inst_name,string field_name,ovm_object value, bit clone=1)

void set_config_string (string inst_name,string field_name,string value)
*/


module top;
  import ovm_pkg::*;
  import my_env_pkg::*;

  my_env topenv;

  initial begin
    //set configuration prior to creating the environment
    set_config_int("topenv.*.u1", "v", 30);
    set_config_int("topenv.inst2.u1", "v", 10);
    set_config_int("topenv.*", "debug", 1);
    set_config_int("*", "recording_detail", 0);
    set_config_string("*", "myaa[foo]", "hi");
    set_config_string("*", "myaa[bar]", "bye");
    set_config_string("*", "myaa[foobar]", "howdy");
    set_config_string("topenv.inst1.u1", "myaa[foo]", "boo");
    set_config_string("topenv.inst1.u1", "myaa[foobar]", "boobah");

    topenv = new("topenv", null); topenv.build();

    ovm_top.enable_print_topology=1;
    ovm_default_printer.knobs.reference=0;

    // select different default printer
    //ovm_default_printer = ovm_default_tree_printer;

    run_test();
  end

  initial #10 ovm_top.stop_request();

endmodule