scfx_params.h

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  All Rights reserved.

  The contents of this file are subject to the restrictions and limitations
  set forth in the SystemC Open Source License (the "License");
  You may not use this file except in compliance with such restrictions and
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  License at http://www.accellera.org/. Software distributed by Contributors
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/*****************************************************************************

  scfx_params.h - 

  Original Author: Martin Janssen, Synopsys, Inc.

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

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

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

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// $Log: scfx_params.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 SCFX_PARAMS_H
#define SCFX_PARAMS_H


#include "sysc/datatypes/fx/sc_fx_ids.h"
#include "sysc/datatypes/fx/sc_fxcast_switch.h"
#include "sysc/datatypes/fx/sc_fxtype_params.h"


namespace sc_dt
{

// classes defined in this module
class scfx_params;


// ----------------------------------------------------------------------------
//  CLASS : scfx_params
//
//  ...
// ----------------------------------------------------------------------------

class scfx_params
{

public:

    // constructor

    scfx_params( const sc_fxtype_params&,
                 sc_enc,
                 const sc_fxcast_switch& );


    // query functions

    const sc_fxtype_params& type_params() const;
    sc_enc enc() const;
    const sc_fxcast_switch& cast_switch() const;


    // shortcuts

    int wl() const;
    int iwl() const;
    int fwl() const;
    sc_q_mode q_mode() const;
    sc_o_mode o_mode() const;
    int n_bits() const;


    // dump content

    void dump( ::std::ostream& ) const;

private:

    sc_fxtype_params m_type_params;
    sc_enc           m_enc;
    sc_fxcast_switch m_cast_switch;
    
};


// IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII

// constructor

inline
scfx_params::scfx_params( const sc_fxtype_params& type_params_,
                          sc_enc enc_,
                          const sc_fxcast_switch& cast_sw )
: m_type_params( type_params_ ),
  m_enc( enc_ ),
  m_cast_switch( cast_sw )
{
    if( m_enc == SC_US_ && m_type_params.o_mode() == SC_WRAP_SM )
    {
        SC_REPORT_ERROR( sc_core::SC_ID_INVALID_O_MODE_,
                         "SC_WRAP_SM not defined for unsigned numbers" );
    }

}


// query functions

inline
const sc_fxtype_params&
scfx_params::type_params() const
{
    return m_type_params;
}

inline
sc_enc
scfx_params::enc() const
{
    return m_enc;
}

inline
const sc_fxcast_switch&
scfx_params::cast_switch() const
{
    return m_cast_switch;
}


// shortcuts

inline
int
scfx_params::wl() const
{
    return m_type_params.wl();
}

inline
int
scfx_params::iwl() const
{
    return m_type_params.iwl();
}

inline
int
scfx_params::fwl() const
{
    return ( m_type_params.wl() - m_type_params.iwl() );
}

inline
sc_q_mode
scfx_params::q_mode() const
{
    return m_type_params.q_mode();
}

inline
sc_o_mode
scfx_params::o_mode() const
{
    return m_type_params.o_mode();
}

inline
int
scfx_params::n_bits() const
{
    return m_type_params.n_bits();
}


// dump content

inline
void
scfx_params::dump( ::std::ostream& os ) const
{
    os << "scfx_params" << ::std::endl;
    os << "(" << ::std::endl;
    os << "type_params = ";
    m_type_params.dump( os );
    os << "enc         = " << m_enc << ::std::endl;
    os << "cast_switch = ";
    m_cast_switch.dump( os );
    os << ")" << ::std::endl;
}

} // namespace sc_dt


#endif

// Taf!