xref: /gem5/src/systemc/tests/systemc/kernel/process_control/test04/test04.cpp

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

  test04.cpp -- Test of interaction of suspend-resume, disable-enable, and
                resets on processes

  Original Author: Andy Goodrich

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

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

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

      Name, Affiliation, Date:
  Description of Modification:

  Revision log at end of the file to let __LINE__ give the same results
  after a check-in.
 *****************************************************************************/
// $Log: test04.cpp,v $
// Revision 1.5  2011/04/02 00:08:29  acg
//  Andy Goodrich: turn off corner case error checking.
//
// Revision 1.4  2011/03/07 19:32:14  acg
//  Andy Goodrich: addition to set sc_core::sc_allow_process_control_corners
//  to true so that this test avoids corner case error messages.
//
// Revision 1.3  2011/02/14 17:00:00  acg
//  Andy Goodrich: updated copyright and added cvs logging information inline.
//

#include "systemc.h"

SC_MODULE(DUT)
{
    SC_CTOR(DUT)
    {
        SC_CTHREAD(master,m_clk.pos());
        SC_CTHREAD(slave,m_clk.pos());
    }
    void slave()
    {
        m_handle0 = sc_get_current_process_handle();
        cout << sc_time_stamp() << ":slave - in reset" << endl;
        for (;;)
        {
            wait();
            cout << sc_time_stamp() << ":slave - self-suspend..." << endl;
            m_handle0.suspend();
            cout << sc_time_stamp() << ":slave - ... resumed" << endl;
            wait();
            cout << sc_time_stamp() << ":slave - self-disable ..." << endl;
            m_handle0.disable();
            cout << sc_time_stamp() << ":slave - ... executing ..." << endl;
	    wait();
            cout << sc_time_stamp() << ":slave - ... enabled" << endl;
	    wait();
	    wait();
	    wait();
        }
    }
    void master()
    {
        m_handle1 = sc_get_current_process_handle();
        for (;;)
        {
            wait();
            wait();
            wait();
            cout << sc_time_stamp()
	         << ":master -                    resuming slave" << endl;
            m_handle0.resume();
            wait();
            wait();
            wait();
            cout << sc_time_stamp()
	         << ":master -                    enabling slave" << endl;
            m_handle0.enable();
            wait();
            cout << sc_time_stamp()
	         << ":master -                    sync reset on slave" << endl;
            m_handle0.sync_reset_on();
            wait();
            wait();
            wait();
            cout << sc_time_stamp()
	         << ":master -                    sync reset off slave" << endl;
            m_handle0.sync_reset_off();
            wait();
            wait();
            wait();
            cout << sc_time_stamp()
	         << ":master -                    async reset on slave" << endl;
            m_handle0.reset();
            wait(20);
            sc_stop();
        }
    }
    sc_in<bool>       m_clk;
    sc_process_handle m_handle0;
    sc_process_handle m_handle1;
};

int sc_main(int argc, char* argv[])
{
    sc_core::sc_allow_process_control_corners = true;
    sc_clock        clock;
    DUT             dut("dut");

    dut.m_clk(clock);

    sc_core::sc_allow_process_control_corners = true;
    sc_start();

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