sc_fxval_observer.hh

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  sc_fxval_observer.h -

  Original Author: Martin Janssen, Synopsys, Inc.

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

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// $Log: sc_fxval_observer.h,v $
// Revision 1.1.1.1  2006/12/15 20:20:04  acg
// SystemC 2.3
//
// Revision 1.3  2006/01/13 18:53:58  acg
// Andy Goodrich: added $Log command so that CVS comments are reproduced in
// the source.
//

#ifndef __SYSTEMC_EXT_DT_FX_SC_FXVAL_OBSERVER_HH__
#define __SYSTEMC_EXT_DT_FX_SC_FXVAL_OBSERVER_HH__

#include "sc_fxdefs.hh"

namespace sc_dt
{

// classes defined in this module
class sc_fxval_observer;
class sc_fxval_fast_observer;

// forward class declarations
class sc_fxval;
class sc_fxval_fast;

#ifdef SC_ENABLE_OBSERVERS

#define SC_FXVAL_OBSERVER_CONSTRUCT_(object) \
    SC_OBSERVER_(object, sc_fxval_observer *, construct)
#define SC_FXVAL_OBSERVER_DESTRUCT_(object) \
    SC_OBSERVER_(object, sc_fxval_observer *, destruct)
#define SC_FXVAL_OBSERVER_READ_(object) \
    SC_OBSERVER_(object, sc_fxval_observer *, read)
#define SC_FXVAL_OBSERVER_WRITE_(object) \
    SC_OBSERVER_(object, sc_fxval_observer *, write)
#define SC_FXVAL_OBSERVER_DEFAULT_ \
    SC_OBSERVER_DEFAULT_(sc_fxval_observer)

#define SC_FXVAL_FAST_OBSERVER_CONSTRUCT_(object) \
    SC_OBSERVER_(object, sc_fxval_fast_observer *, construct)
#define SC_FXVAL_FAST_OBSERVER_DESTRUCT_(object) \
    SC_OBSERVER_(object, sc_fxval_fast_observer *, destruct)
#define SC_FXVAL_FAST_OBSERVER_READ_(object) \
    SC_OBSERVER_(object, sc_fxval_fast_observer *, read)
#define SC_FXVAL_FAST_OBSERVER_WRITE_(object) \
    SC_OBSERVER_(object, sc_fxval_fast_observer *, write)
#define SC_FXVAL_FAST_OBSERVER_DEFAULT_ \
    SC_OBSERVER_DEFAULT_(sc_fxval_fast_observer)

#else

#define SC_FXVAL_OBSERVER_CONSTRUCT_(object)
#define SC_FXVAL_OBSERVER_DESTRUCT_(object)
#define SC_FXVAL_OBSERVER_READ_(object)
#define SC_FXVAL_OBSERVER_WRITE_(object)
#define SC_FXVAL_OBSERVER_DEFAULT_

#define SC_FXVAL_FAST_OBSERVER_CONSTRUCT_(object)
#define SC_FXVAL_FAST_OBSERVER_DESTRUCT_(object)
#define SC_FXVAL_FAST_OBSERVER_READ_(object)
#define SC_FXVAL_FAST_OBSERVER_WRITE_(object)
#define SC_FXVAL_FAST_OBSERVER_DEFAULT_

#endif


// ----------------------------------------------------------------------------
//  CLASS : sc_fxval_observer
//
//  Abstract base class for fixed-point value type observers;
//  arbitrary precision.
// ----------------------------------------------------------------------------

class sc_fxval_observer
{
  protected:
    sc_fxval_observer() {}
    virtual ~sc_fxval_observer() {}
  public:
    virtual void construct(const sc_fxval &);
    virtual void destruct(const sc_fxval &);
    virtual void read(const sc_fxval &);
    virtual void write(const sc_fxval &);

    static sc_fxval_observer *(*default_observer) ();
};


// ----------------------------------------------------------------------------
//  CLASS : sc_fxval_fast_observer
//
//  Abstract base class for fixed-point value type observers;
//  limited precision.
// ----------------------------------------------------------------------------

class sc_fxval_fast_observer
{
  protected:
    sc_fxval_fast_observer() {}
    virtual ~sc_fxval_fast_observer() {}

  public:
    virtual void construct(const sc_fxval_fast &);
    virtual void destruct(const sc_fxval_fast &);
    virtual void read(const sc_fxval_fast &);
    virtual void write(const sc_fxval_fast &);

    static sc_fxval_fast_observer *(*default_observer) ();
};


// IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII

// ----------------------------------------------------------------------------
//  CLASS : sc_fxval_observer
//
//  Abstract base class for fixed-point value type observers;
//  arbitrary precision.
// ----------------------------------------------------------------------------

inline void sc_fxval_observer::construct(const sc_fxval &) {}
inline void sc_fxval_observer::destruct(const sc_fxval &) {}
inline void sc_fxval_observer::read(const sc_fxval &) {}
inline void sc_fxval_observer::write(const sc_fxval &) {}


// ----------------------------------------------------------------------------
//  CLASS : sc_fxval_fast_observer
//
//  Abstract base class for fixed-point value type observers;
//  limited precision.
// ----------------------------------------------------------------------------

inline void sc_fxval_fast_observer::construct(const sc_fxval_fast &) {}
inline void sc_fxval_fast_observer::destruct(const sc_fxval_fast &) {}
inline void sc_fxval_fast_observer::read(const sc_fxval_fast &) {}
inline void sc_fxval_fast_observer::write(const sc_fxval_fast &) {}

} // namespace sc_dt

#endif // __SYSTEMC_EXT_DT_FX_SC_FXVAL_OBSERVER_HH__