src/systemc/tests/systemc/misc/v1.0/dash2/dist.h

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/*****************************************************************************
 
  dist.h -- Definition of the odometers.
 
  Original Author: Ali Dasdan, Synopsys, Inc.
 
 *****************************************************************************/

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

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

      Name, Affiliation, Date:
  Description of Modification:

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

#ifndef DIST_H
#define DIST_H

SC_MODULE( dist_mod )
{
  // Ports:
  sc_in<bool> pulse; // Pulse coming ftom the pulse generator.
  sc_in<bool> reset; // Reset the partial distance odometer if true.
  sc_in<bool> start; // Becomes true if the car's started.

  // Output ports:
  sc_out<double> total;   // Total distance.
  sc_out<double> partial; // Partial distance.

  // Internal signals:
  sc_signal<bool>   ok_for_incr;
  sc_signal<double> total_dist;
  sc_signal<double> partial_dist;

  // Internal variables:
  static bool prev_reset;

  // Get the pulses for one distance increment.
  void get_dist_proc();

  // Compute total and partial distances.
  void compute_total_proc();
  void compute_partial_proc();

  // LCD display driver.
  void lcd_driver_proc();

  SC_CTOR( dist_mod )
  {
    SC_THREAD( get_dist_proc );
    sensitive << pulse.pos();

    SC_METHOD( compute_total_proc );
    sensitive << ok_for_incr;

    SC_METHOD( compute_partial_proc );
    sensitive << ok_for_incr;

    SC_METHOD( lcd_driver_proc );
    sensitive << total_dist << partial_dist;

    ok_for_incr = false;
    total_dist = 0.0;
    partial_dist = 0.0;
  }

};

#endif