sc_fxval_observer.h

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  set forth in the SystemC Open Source License Version 2.4 (the "License");
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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 20:31:36  acg
// SystemC 2.2
//
// 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 SC_FXVAL_OBSERVER_H
#define SC_FXVAL_OBSERVER_H


#include "sysc/datatypes/fx/sc_fxdefs.h"


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

// Taf!

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