fifo_fir.h

Kluwer.Academic.Pub.Systemc.From.The.Ground.Up-此全书的范例程式。

#ifndef SC_FIFO_EX_H
#define SC_FIFO_EX_H
//BEGIN fifo_fir.h
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// DESCRIPTION
//   This example uses threads to implement a FIR filter. Contrast this
//   with the method_fifo_fir example.
//
// Configuration file format:
//   +---------------------+
//   |N                    |
//   |COEFFICIENT_0        |
//   |COEFFICIENT_1        |
//   |COEFFICIENT_2        |
//   |...                  |
//   |COEFFICIENT_(N-1)    |
//   +---------------------+
//
// DESIGN HIERARCHY
//   sc_main()
//   +- sc_fifo_ex_i
//    +- stimulus_thread
//    +- sc_fifo_ex_thread
//    +- results_thread
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#include <systemc.h>

SC_MODULE(fifo_fir) {
  sc_fifo<double> orig_in;
  sc_fifo<double> data_in;
  sc_fifo<double> data_out;
  double*     m_pipe;     // data pipe
  double*     m_coeff;    // array of coefficients
  unsigned m_taps;     // number of coefficients
  unsigned m_tap;      // current tap
  char* m_cfg_filename;
  SC_HAS_PROCESS(fifo_fir);
  // Constructor
  fifo_fir(sc_module_name _name, char* _cfg_filename="fifo_fir.cfg");
  // Destructor
  ~fifo_fir() {
    if (m_taps) {
      delete[] m_coeff;
      delete[] m_pipe;
    }//endif
  }//end ~fifo_fir()

  // Processes
  void stimulus_thread(void);
  void sc_fifo_ex_thread(void);
  void results_thread(void);
};

#endif
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//END $Id: fifo_fir.h,v 1.4 2004/04/15 17:38:57 dcblack Exp $