xref: /gem5/src/systemc/tests/systemc/kernel/sc_event/test12/test12.cpp

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  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
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  with this work for additional information regarding copyright ownership.
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 *****************************************************************************/

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

  test12.cpp --

  Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15

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

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

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

      Name, Affiliation, Date:
  Description of Modification:

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

// test of next_trigger() for dynamic sensitivity; last call counts

#include "systemc.h"

SC_MODULE( mod_a )
{
    sc_event e1;
    sc_event e2;
    sc_event e3;
    sc_event e_ack;

    void write( const char* msg )
    {
        cout << sc_delta_count() << ":" << sc_time_stamp()
             << " " << msg << "\n";
    }

    bool sender_first;

    void sender()
    {
        next_trigger( SC_ZERO_TIME );
        if( sender_first ) {
            sender_first = false;
            return;
        }

        e2.cancel();
        e3.cancel();
        e1.notify();
        e2.notify( SC_ZERO_TIME );
        e3.notify( 2, SC_NS );
        timed_out() ? write( "sender - timed out" )
                    : write( "sender" );
        next_trigger( 3, SC_NS, e_ack );
    }

    int receiver_state;

    void receiver()
    {
        sc_time t1( 1, SC_NS );

        switch( receiver_state ) {
	case 0:
	    // test next_trigger(e)
	    cout << "*** next_trigger(e)\n";

	    next_trigger( e1 );
	    break;
	case 1:
	    write( "receiver - e1" );
	    e_ack.notify();
	    next_trigger( e1 );
	    next_trigger( e2 );
	    break;
	case 2:
	    write( "receiver - e2" );
	    e_ack.notify();
	    next_trigger( e2 );
	    next_trigger( e3 );
	    break;
	case 3:
	    write( "receiver - e3" );
	    e_ack.notify();

	    // test next_trigger(or_list)
	    cout << "*** next_trigger(or_list)\n";

	    next_trigger( e3 );
	    next_trigger( e1 | e1 | e1 );
	    break;
	case 4:
	    write( "receiver - e1 | e1 | e1" );
	    e_ack.notify();
	    next_trigger( e1 | e1 | e1 );
	    next_trigger( e2 | e2 | e2 );
	    break;
	case 5:
	    write( "receiver - e2 | e2 | e2" );
	    e_ack.notify();
	    next_trigger( e2 | e2 | e2 );
	    next_trigger( e3 | e3 | e3 );
	    break;
	case 6:
	    write( "receiver - e3 | e3 | e3" );
	    e_ack.notify();
	    next_trigger( e3 | e3 | e3 );
	    next_trigger( e1 | e2 | e3 );
	    break;
	case 7:
	    write( "receiver - e1 | e2 | e3" );
	    e_ack.notify();
	    next_trigger( e1 | e2 | e3 );
	    next_trigger( e3 | e2 | e1 );
	    break;
	case 8:
	    write( "receiver - e3 | e2 | e1" );
	    e_ack.notify();

	    // test next_trigger(and_list)
	    cout << "*** next_trigger(and_list)\n";

	    next_trigger( e3 | e2 | e1 );
	    next_trigger( e1 & e1 & e1 );
	    break;
	case 9:
	    write( "receiver - e1 & e1 & e1" );
	    e_ack.notify();
	    next_trigger( e1 & e1 & e1 );
	    next_trigger( e2 & e2 & e2 );
	    break;
	case 10:
	    write( "receiver - e2 & e2 & e2" );
	    e_ack.notify();
	    next_trigger( e2 & e2 & e2 );
	    next_trigger( e3 & e3 & e3 );
	    break;
	case 11:
	    write( "receiver - e3 & e3 & e3" );
	    e_ack.notify();
	    next_trigger( e3 & e3 & e3 );
	    next_trigger( e1 & e2 & e3 );
	    break;
	case 12:
	    write( "receiver - e1 & e2 & e3" );
	    e_ack.notify();
	    next_trigger( e1 & e2 & e3 );
	    next_trigger( e3 & e2 & e1 );
	    break;
	case 13:
	    write( "receiver - e3 & e2 & e1" );

	    // test next_trigger(t)
	    cout << "*** next_trigger(t)\n";

	    next_trigger( e3 & e2 & e1 );
	    next_trigger( 0, SC_NS );
	    break;
	case 14:
	    write( "receiver - 0 ns" );
	    next_trigger( 0, SC_NS );
	    next_trigger( 1, SC_NS );
	    break;
	case 15:
	    write( "receiver - 1 ns" );

	    e_ack.notify();

	    // test next_trigger(t,e)
	    cout << "*** next_trigger(t,e)\n";

	    next_trigger( 1, SC_NS );
	    next_trigger( 1, SC_NS, e1 );
	    break;
	case 16:
	    timed_out() ? write( "receiver - 1 ns | e1 - timed out" )
		        : write( "receiver - 1 ns | e1" );
	    e_ack.notify();
	    next_trigger( 1, SC_NS, e1 );
	    next_trigger( t1, e2 );
	    break;
	case 17:
	    timed_out() ? write( "receiver - 1 ns | e2 - timed out" )
                        : write( "receiver - 1 ns | e2" );
	    e_ack.notify();
	    next_trigger( t1, e2 );
	    next_trigger( 1, SC_NS, e3 );
	    break;
	case 18:
	    timed_out() ? write( "receiver - 1 ns | e3 - timed out" )
		        : write( "receiver - 1 ns | e3" );
	    e_ack.notify();

	    // test next_trigger(t,or_list)
	    cout << "*** next_trigger(t,or_list)\n";

	    next_trigger( 1, SC_NS, e3 );
	    next_trigger( t1, e1 | e2 | e3 );
	    break;
	case 19:
	    timed_out() ? write( "receiver - 1 ns | e1 | e2 | e3 - timed out" )
                        : write( "receiver - 1 ns | e1 | e2 | e3" );
	    e_ack.notify();

	    // test next_trigger(t,and_list)
	    cout << "*** next_trigger(t,and_list)\n";

	    next_trigger( t1, e1 | e2 | e3 );
	    next_trigger( t1, e1 & e2 & e3 );
	    break;
	case 20:
	    timed_out() ? write( "receiver - 1 ns | e1 & e2 & e3 - timed out" )
                        : write( "receiver - 1 ns | e1 & e2 & e3" );

	    sc_stop();
	    write( "receiver - stop" );
	    next_trigger( t1, e1 & e2 & e3 );
	    next_trigger( SC_ZERO_TIME );
	    break;
	default:
	    sc_assert( false );
        }
	receiver_state ++;
    }

    SC_CTOR( mod_a )
    {
        SC_METHOD( sender );
        sender_first = true;
        SC_METHOD( receiver );
        receiver_state = 0;
    }
};

int
sc_main( int, char*[] )
{
    mod_a a( "a" );

    sc_start();

    return 0;
}