xref: /gem5/src/systemc/tests/systemc/1666-2011-compliance/disable_enable/disable_enable.cpp

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  more contributor license agreements.  See the NOTICE file distributed
  with this work for additional information regarding copyright ownership.
  Accellera licenses this file to you under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with the
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// disable_enable.cpp -- test for
//
//  Original Author: John Aynsley, Doulos Inc.
//
// MODIFICATION LOG - modifiers, enter your name, affiliation, date and
//
// $Log: disable_enable.cpp,v $
// Revision 1.2  2011/05/08 19:18:46  acg
//  Andy Goodrich: remove extraneous + prefixes from git diff.
//

// disable() should take effect only the next evaluation phase

#define SC_INCLUDE_DYNAMIC_PROCESSES

#include <systemc>

using namespace sc_core;
using namespace std;

struct Top: sc_module
{
  Top(sc_module_name _name)
  : count(0)
  {
    SC_THREAD(control);
    SC_THREAD(target);
      t = sc_get_current_process_handle();

    f0 = f1 = f2 = f3 = f4 = f5 = 0;
  }

  sc_process_handle t;
  sc_event ev;
  int count;
  int f0, f1, f2, f3, f4, f5;

  void control()
  {
    wait(SC_ZERO_TIME);

    count = 1;
    ev.notify();
    wait(10, SC_NS);

    count = 2;
    ev.notify();
    t.disable();
    wait(SC_ZERO_TIME);

    count = 3;
    ev.notify();
    wait(SC_ZERO_TIME);

    count = 4;
    t.enable();
    ev.notify();
    wait(10, SC_NS);

    count = 5;
    t.disable();
    t.reset();
    wait(10, SC_NS);

    count = 6;
    t.reset();
    wait(10, SC_NS);

    sc_stop();
  }

  void target()
  {
    //cout << "Target called at " << sc_time_stamp() << " with count = " << count << endl;
    switch(count)
    {
        case  0: sc_assert(sc_time_stamp() == sc_time( 0, SC_NS)); f0 = 1; break;
        case  5: sc_assert(sc_time_stamp() == sc_time(20, SC_NS)); f4 = 1; break;
        case  6: sc_assert(sc_time_stamp() == sc_time(30, SC_NS)); f5 = 1; break;
        default: sc_assert(false);
    }
    for (;;)
    {
      wait(ev);
      //cout << "Target awoke at " << sc_time_stamp() << " with count = " << count << endl;
      switch(count)
      {
        case  1: sc_assert(sc_time_stamp() == sc_time( 0, SC_NS)); f1 = 1; break;
        case  2: sc_assert(sc_time_stamp() == sc_time(10, SC_NS)); f2 = 1; break;
        case  4: sc_assert(sc_time_stamp() == sc_time(10, SC_NS)); f3 = 1; break;
        default: sc_assert(false);
      }
    }
  }

  SC_HAS_PROCESS(Top);
};

int sc_main(int argc, char* argv[])
{
  Top top("top");

  sc_start();

  sc_assert( top.f0 );
  sc_assert( top.f1 );
  sc_assert( top.f2 );
  sc_assert( top.f3 );
  sc_assert( top.f4 );
  sc_assert( top.f5 );
  /*
  */
  cout << endl << "Success" << endl;
  return 0;
}