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  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
  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
  License.  You may obtain a copy of the License at

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  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.

 *****************************************************************************/

/*****************************************************************************

  test1.cpp -- Test alternations of sc_start(0, SC_NS) and sc_start(1, SC_NS).

  Original Author: Andy Goodrich, Forte Design Systems, 18 August 2006

 *****************************************************************************/

/*****************************************************************************

  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
  changes you are making here.

      Name, Affiliation, Date: 
  Description of Modification: - 

 *****************************************************************************/


#include "systemc.h"

SC_MODULE(X)
{
	SC_CTOR(X)
	{
		SC_METHOD(comb);
		sensitive << tweak;
		SC_CTHREAD(sync, clk.pos());
	}
	void comb()
	{
		cout << "  X::comb() - " << 
			sc_time_stamp() << "  " <<
			tweak.read() << endl;
	}
	void sync()
	{
		for (;;)
		{
			wait();
			cout << "  X::sync() - " << 
				sc_time_stamp() << "  " <<
				tweak.read() << endl;
		}
	}
	sc_in_clk   clk;
	sc_in<bool> tweak;
};

#define ACTION(action,descr) \
{ \
	cout << descr << " - " << \
		sc_time_stamp() << "   " << \
		tweak.read() << endl; \
	action ; \
	cout << "                                        " << \
                sc_time_stamp() << "   " << \
		tweak.read() << endl; \
}


int sc_main(int argc, char* argv[])
{
	sc_clock clock;
	sc_signal<bool> tweak;
	X        x("x");
	x.clk(clock);
	x.tweak(tweak);

	cout << "Event         Start Parameters         End Parameters" << endl;
	cout << "------------- ----------------         --------------\n" << endl;

	ACTION(sc_start(1, SC_NS),"sc_start(1, SC_NS)")
	ACTION(tweak = !tweak,"~tweak     ")
	ACTION(sc_start(0, SC_NS),"sc_start(0, SC_NS)")
	ACTION(sc_start(0, SC_NS),"sc_start(0, SC_NS)")
	ACTION(sc_start(1, SC_NS),"sc_start(1, SC_NS)")
	ACTION(sc_start(0, SC_NS),"sc_start(0, SC_NS)")
	ACTION(sc_start(0, SC_NS),"sc_start(0, SC_NS)")

	ACTION(tweak = !tweak,"~tweak     ")
	ACTION(sc_start(0, SC_NS),"sc_start(0, SC_NS)")

	ACTION(tweak = !tweak,"~tweak     ")
	ACTION(sc_start(0, SC_NS),"sc_start(0, SC_NS)")
	ACTION(sc_start(0, SC_NS),"sc_start(0, SC_NS)")

	ACTION(sc_start(1, SC_NS),"sc_start(1, SC_NS)")
	ACTION(sc_start(1, SC_NS),"sc_start(1, SC_NS)")
	ACTION(sc_start(0, SC_NS),"sc_start(0, SC_NS)")
	ACTION(tweak = !tweak,"~tweak     ")
	ACTION(sc_start(0, SC_NS),"sc_start(0, SC_NS)")
	ACTION(sc_start(0, SC_NS),"sc_start(0, SC_NS)")

    cerr << "Program completed" << endl;
    return 0;
}