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