xref: /gem5/src/systemc/ext/dt/fx/sc_fix.hh

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

  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
  more contributor license agreements.  See the NOTICE file distributed
  with this work for additional information regarding copyright ownership.
  Accellera licenses this file to you under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with the
  License.  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
  implied.  See the License for the specific language governing
  permissions and limitations under the License.

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

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

  sc_fix.h -

  Original Author: Martin Janssen, Synopsys, Inc.

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

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

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

      Name, Affiliation, Date:
  Description of Modification:

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

// $Log: sc_fix.h,v $
// Revision 1.2  2011/01/19 18:57:40  acg
//  Andy Goodrich: changes for IEEE_1666_2011.
//
// Revision 1.1.1.1  2006/12/15 20:20:04  acg
// SystemC 2.3
//
// Revision 1.3  2006/01/13 18:53:57  acg
// Andy Goodrich: added $Log command so that CVS comments are reproduced in
// the source.
//

#ifndef __SYSTEMC_EXT_DT_FX_SC_FIX_HH__
#define __SYSTEMC_EXT_DT_FX_SC_FIX_HH__

#include "sc_fxnum.hh"

namespace sc_dt
{

// classes defined in this module
class sc_fix;
class sc_fix_fast;


// ----------------------------------------------------------------------------
//  CLASS : sc_fix
//
//  "Unconstrained" signed fixed-point class; arbitrary precision.
// ----------------------------------------------------------------------------

class sc_fix : public sc_fxnum
{
  public:
    // constructors
    explicit sc_fix(sc_fxnum_observer * =0);
    sc_fix(int, int, sc_fxnum_observer * =0);
    sc_fix(sc_q_mode, sc_o_mode, sc_fxnum_observer * =0);
    sc_fix(sc_q_mode, sc_o_mode, int, sc_fxnum_observer * =0);
    sc_fix(int, int, sc_q_mode, sc_o_mode, sc_fxnum_observer * =0);
    sc_fix(int, int, sc_q_mode, sc_o_mode, int, sc_fxnum_observer * =0);
    explicit sc_fix(const sc_fxcast_switch &, sc_fxnum_observer * =0);
    sc_fix(int, int, const sc_fxcast_switch &, sc_fxnum_observer * =0);
    sc_fix(sc_q_mode, sc_o_mode, const sc_fxcast_switch &,
           sc_fxnum_observer * =0);
    sc_fix(sc_q_mode, sc_o_mode, int, const sc_fxcast_switch &,
           sc_fxnum_observer * =0);
    sc_fix(int, int, sc_q_mode, sc_o_mode, const sc_fxcast_switch &,
           sc_fxnum_observer * =0);
    sc_fix(int, int, sc_q_mode, sc_o_mode, int, const sc_fxcast_switch &,
           sc_fxnum_observer * =0);
    explicit sc_fix(const sc_fxtype_params &, sc_fxnum_observer * =0);
    sc_fix(const sc_fxtype_params &, const sc_fxcast_switch &,
           sc_fxnum_observer * =0);

#define DECL_CTORS_T(tp) \
    sc_fix(tp, int, int, sc_fxnum_observer * =0); \
    sc_fix(tp, sc_q_mode, sc_o_mode, sc_fxnum_observer * =0); \
    sc_fix(tp, sc_q_mode, sc_o_mode, int, sc_fxnum_observer * =0); \
    sc_fix(tp, int, int, sc_q_mode, sc_o_mode, sc_fxnum_observer * =0); \
    sc_fix(tp, int, int, sc_q_mode, sc_o_mode, int, sc_fxnum_observer * =0); \
    sc_fix(tp, const sc_fxcast_switch &, sc_fxnum_observer * =0); \
    sc_fix(tp, int, int, const sc_fxcast_switch &, sc_fxnum_observer * =0); \
    sc_fix(tp, sc_q_mode, sc_o_mode, const sc_fxcast_switch &, \
           sc_fxnum_observer * =0); \
    sc_fix(tp, sc_q_mode, sc_o_mode, int, const sc_fxcast_switch &, \
           sc_fxnum_observer * =0); \
    sc_fix(tp, int, int, sc_q_mode, sc_o_mode, const sc_fxcast_switch &, \
           sc_fxnum_observer * =0); \
    sc_fix(tp, int, int, sc_q_mode, sc_o_mode, int, \
           const sc_fxcast_switch &, sc_fxnum_observer * =0); \
    sc_fix(tp, const sc_fxtype_params &, sc_fxnum_observer * =0); \
    sc_fix(tp, const sc_fxtype_params &, const sc_fxcast_switch &, \
           sc_fxnum_observer * =0);

#define DECL_CTORS_T_A(tp) \
    sc_fix(tp, sc_fxnum_observer * =0); \
    DECL_CTORS_T(tp)

#define DECL_CTORS_T_B(tp) \
    explicit sc_fix(tp, sc_fxnum_observer * =0); \
    DECL_CTORS_T(tp)

    DECL_CTORS_T_A(int)
    DECL_CTORS_T_A(unsigned int)
    DECL_CTORS_T_A(long)
    DECL_CTORS_T_A(unsigned long)
    DECL_CTORS_T_A(float)
    DECL_CTORS_T_A(double)
    DECL_CTORS_T_A(const char *)
    DECL_CTORS_T_A(const sc_fxval &)
    DECL_CTORS_T_A(const sc_fxval_fast &)
    DECL_CTORS_T_A(const sc_fxnum &)
    DECL_CTORS_T_A(const sc_fxnum_fast &)

    DECL_CTORS_T_B(int64)
    DECL_CTORS_T_B(uint64)
    DECL_CTORS_T_B(const sc_int_base &)
    DECL_CTORS_T_B(const sc_uint_base &)
    DECL_CTORS_T_B(const sc_signed &)
    DECL_CTORS_T_B(const sc_unsigned &)

#undef DECL_CTORS_T
#undef DECL_CTORS_T_A
#undef DECL_CTORS_T_B

    // copy constructor
    sc_fix(const sc_fix &);

    // unary bitwise operators
    const sc_fix operator ~ () const;

    // unary bitwise functions
    friend void b_not(sc_fix &, const sc_fix &);

    // binary bitwise operators
    friend const sc_fix operator & (const sc_fix &, const sc_fix &);
    friend const sc_fix operator & (const sc_fix &, const sc_fix_fast &);
    friend const sc_fix operator & (const sc_fix_fast &, const sc_fix &);
    friend const sc_fix operator | (const sc_fix &, const sc_fix &);
    friend const sc_fix operator | (const sc_fix &, const sc_fix_fast &);
    friend const sc_fix operator | (const sc_fix_fast &, const sc_fix &);
    friend const sc_fix operator ^ (const sc_fix &, const sc_fix &);
    friend const sc_fix operator ^ (const sc_fix &, const sc_fix_fast &);
    friend const sc_fix operator ^ (const sc_fix_fast&, const sc_fix &);

    // binary bitwise functions
    friend void b_and(sc_fix &, const sc_fix &, const sc_fix &);
    friend void b_and(sc_fix &, const sc_fix &, const sc_fix_fast &);
    friend void b_and(sc_fix &, const sc_fix_fast &, const sc_fix &);
    friend void b_or(sc_fix &, const sc_fix &, const sc_fix &);
    friend void b_or(sc_fix &, const sc_fix &, const sc_fix_fast &);
    friend void b_or(sc_fix &, const sc_fix_fast &, const sc_fix &);
    friend void b_xor(sc_fix &, const sc_fix &, const sc_fix &);
    friend void b_xor(sc_fix &, const sc_fix &, const sc_fix_fast &);
    friend void b_xor(sc_fix &, const sc_fix_fast &, const sc_fix &);

    // assignment operators
    sc_fix &operator = (const sc_fix &);

#define DECL_ASN_OP_T(op, tp) sc_fix &operator op (tp);

#define DECL_ASN_OP_OTHER(op) \
    DECL_ASN_OP_T(op, int64) \
    DECL_ASN_OP_T(op, uint64) \
    DECL_ASN_OP_T(op, const sc_int_base &) \
    DECL_ASN_OP_T(op, const sc_uint_base &) \
    DECL_ASN_OP_T(op, const sc_signed &) \
    DECL_ASN_OP_T(op, const sc_unsigned &)

#define DECL_ASN_OP(op) \
    DECL_ASN_OP_T(op, int) \
    DECL_ASN_OP_T(op, unsigned int) \
    DECL_ASN_OP_T(op, long) \
    DECL_ASN_OP_T(op, unsigned long) \
    DECL_ASN_OP_T(op, float) \
    DECL_ASN_OP_T(op, double) \
    DECL_ASN_OP_T(op, const char *) \
    DECL_ASN_OP_T(op, const sc_fxval &) \
    DECL_ASN_OP_T(op, const sc_fxval_fast &) \
    DECL_ASN_OP_T(op, const sc_fxnum &) \
    DECL_ASN_OP_T(op, const sc_fxnum_fast &) \
    DECL_ASN_OP_OTHER(op)

    DECL_ASN_OP(=)

    DECL_ASN_OP(*=)
    DECL_ASN_OP(/=)
    DECL_ASN_OP(+=)
    DECL_ASN_OP(-=)

    DECL_ASN_OP_T(<<=, int)
    DECL_ASN_OP_T(>>=, int)

    DECL_ASN_OP_T(&=, const sc_fix &)
    DECL_ASN_OP_T(&=, const sc_fix_fast &)
    DECL_ASN_OP_T(|=, const sc_fix &)
    DECL_ASN_OP_T(|=, const sc_fix_fast &)
    DECL_ASN_OP_T(^=, const sc_fix &)
    DECL_ASN_OP_T(^=, const sc_fix_fast &)

#undef DECL_ASN_OP_T
#undef DECL_ASN_OP_OTHER
#undef DECL_ASN_OP

    // auto-increment and auto-decrement
    const sc_fxval operator ++ (int);
    const sc_fxval operator -- (int);

    sc_fix& operator ++ ();
    sc_fix& operator -- ();
};


// ----------------------------------------------------------------------------
//  CLASS : sc_fix_fast
//
//  "Unconstrained" signed fixed-point class; limited precision.
// ----------------------------------------------------------------------------

class sc_fix_fast : public sc_fxnum_fast
{
  public:
    // constructors
    explicit sc_fix_fast(sc_fxnum_fast_observer * =0);
    sc_fix_fast(int, int, sc_fxnum_fast_observer * =0);
    sc_fix_fast(sc_q_mode, sc_o_mode, sc_fxnum_fast_observer * =0);
    sc_fix_fast(sc_q_mode, sc_o_mode, int, sc_fxnum_fast_observer * =0);
    sc_fix_fast(int, int, sc_q_mode, sc_o_mode, sc_fxnum_fast_observer * =0);
    sc_fix_fast(int, int, sc_q_mode, sc_o_mode, int,
                sc_fxnum_fast_observer * =0);
    explicit sc_fix_fast(const sc_fxcast_switch &,
                         sc_fxnum_fast_observer * =0);
    sc_fix_fast(int, int, const sc_fxcast_switch &,
                sc_fxnum_fast_observer * =0);
    sc_fix_fast(sc_q_mode, sc_o_mode, const sc_fxcast_switch &,
                sc_fxnum_fast_observer * =0);
    sc_fix_fast(sc_q_mode, sc_o_mode, int, const sc_fxcast_switch &,
                sc_fxnum_fast_observer * =0);
    sc_fix_fast(int, int, sc_q_mode, sc_o_mode, const sc_fxcast_switch &,
                sc_fxnum_fast_observer * =0);
    sc_fix_fast(int, int, sc_q_mode, sc_o_mode, int, const sc_fxcast_switch &,
                sc_fxnum_fast_observer * =0);
    explicit sc_fix_fast(const sc_fxtype_params &,
                         sc_fxnum_fast_observer * =0);
    sc_fix_fast(const sc_fxtype_params &, const sc_fxcast_switch &,
                sc_fxnum_fast_observer * =0);

#define DECL_CTORS_T(tp) \
    sc_fix_fast(tp, int, int, sc_fxnum_fast_observer * = 0); \
    sc_fix_fast(tp, sc_q_mode, sc_o_mode, sc_fxnum_fast_observer * = 0); \
    sc_fix_fast(tp, sc_q_mode, sc_o_mode, int, sc_fxnum_fast_observer * = 0); \
    sc_fix_fast(tp, int, int, sc_q_mode, sc_o_mode, \
                sc_fxnum_fast_observer * = 0); \
    sc_fix_fast(tp, int, int, sc_q_mode, sc_o_mode, int, \
                sc_fxnum_fast_observer * = 0); \
    sc_fix_fast(tp, const sc_fxcast_switch &, sc_fxnum_fast_observer * = 0); \
    sc_fix_fast(tp, int, int, const sc_fxcast_switch &, \
                sc_fxnum_fast_observer * = 0); \
    sc_fix_fast(tp, sc_q_mode, sc_o_mode, const sc_fxcast_switch &, \
                sc_fxnum_fast_observer * = 0); \
    sc_fix_fast(tp, sc_q_mode, sc_o_mode, int, const sc_fxcast_switch &, \
                sc_fxnum_fast_observer * = 0); \
    sc_fix_fast(tp, int, int, sc_q_mode, sc_o_mode, const sc_fxcast_switch &, \
                sc_fxnum_fast_observer * = 0); \
    sc_fix_fast(tp, int, int, sc_q_mode, sc_o_mode, int, \
                const sc_fxcast_switch &, sc_fxnum_fast_observer * = 0); \
    sc_fix_fast(tp, const sc_fxtype_params &, sc_fxnum_fast_observer * = 0); \
    sc_fix_fast(tp, const sc_fxtype_params &, const sc_fxcast_switch &, \
                sc_fxnum_fast_observer * = 0);

#define DECL_CTORS_T_A(tp) \
    sc_fix_fast(tp, sc_fxnum_fast_observer * =0); \
    DECL_CTORS_T(tp)

#define DECL_CTORS_T_B(tp) \
    explicit sc_fix_fast(tp, sc_fxnum_fast_observer * =0); \
    DECL_CTORS_T(tp)

    DECL_CTORS_T_A(int)
    DECL_CTORS_T_A(unsigned int)
    DECL_CTORS_T_A(long)
    DECL_CTORS_T_A(unsigned long)
    DECL_CTORS_T_A(float)
    DECL_CTORS_T_A(double)
    DECL_CTORS_T_A(const char *)
    DECL_CTORS_T_A(const sc_fxval &)
    DECL_CTORS_T_A(const sc_fxval_fast &)
    DECL_CTORS_T_A(const sc_fxnum &)
    DECL_CTORS_T_A(const sc_fxnum_fast &)

    DECL_CTORS_T_B(int64)
    DECL_CTORS_T_B(uint64)
    DECL_CTORS_T_B(const sc_int_base &)
    DECL_CTORS_T_B(const sc_uint_base &)
    DECL_CTORS_T_B(const sc_signed &)
    DECL_CTORS_T_B(const sc_unsigned &)

#undef DECL_CTORS_T
#undef DECL_CTORS_T_A
#undef DECL_CTORS_T_B

    // copy constructor
    sc_fix_fast(const sc_fix_fast &);

    // unary bitwise operators
    const sc_fix_fast operator ~ () const;

    // unary bitwise functions
    friend void b_not(sc_fix_fast &, const sc_fix_fast &);

    // binary bitwise operators
    friend const sc_fix_fast operator & (
            const sc_fix_fast &, const sc_fix_fast &);
    friend const sc_fix_fast operator ^ (
            const sc_fix_fast &, const sc_fix_fast &);
    friend const sc_fix_fast operator | (
            const sc_fix_fast &, const sc_fix_fast &);

    // binary bitwise functions
    friend void b_and(sc_fix_fast &, const sc_fix_fast &, const sc_fix_fast &);
    friend void b_or(sc_fix_fast &, const sc_fix_fast &, const sc_fix_fast &);
    friend void b_xor(sc_fix_fast &, const sc_fix_fast &, const sc_fix_fast &);

    // assignment operators
    sc_fix_fast &operator = (const sc_fix_fast &);

#define DECL_ASN_OP_T(op,tp) sc_fix_fast &operator op (tp);

#define DECL_ASN_OP_OTHER(op) \
    DECL_ASN_OP_T(op, int64) \
    DECL_ASN_OP_T(op, uint64) \
    DECL_ASN_OP_T(op, const sc_int_base &) \
    DECL_ASN_OP_T(op, const sc_uint_base &) \
    DECL_ASN_OP_T(op, const sc_signed &) \
    DECL_ASN_OP_T(op, const sc_unsigned &)

#define DECL_ASN_OP(op) \
    DECL_ASN_OP_T(op, int) \
    DECL_ASN_OP_T(op, unsigned int) \
    DECL_ASN_OP_T(op, long) \
    DECL_ASN_OP_T(op, unsigned long) \
    DECL_ASN_OP_T(op, float) \
    DECL_ASN_OP_T(op, double) \
    DECL_ASN_OP_T(op, const char *) \
    DECL_ASN_OP_T(op, const sc_fxval &) \
    DECL_ASN_OP_T(op, const sc_fxval_fast &) \
    DECL_ASN_OP_T(op, const sc_fxnum &) \
    DECL_ASN_OP_T(op, const sc_fxnum_fast &) \
    DECL_ASN_OP_OTHER(op)

    DECL_ASN_OP(=)

    DECL_ASN_OP(*=)
    DECL_ASN_OP(/=)
    DECL_ASN_OP(+=)
    DECL_ASN_OP(-=)

    DECL_ASN_OP_T(<<=, int)
    DECL_ASN_OP_T(>>=, int)

    DECL_ASN_OP_T(&=, const sc_fix &)
    DECL_ASN_OP_T(&=, const sc_fix_fast &)
    DECL_ASN_OP_T(|=, const sc_fix &)
    DECL_ASN_OP_T(|=, const sc_fix_fast &)
    DECL_ASN_OP_T(^=, const sc_fix &)
    DECL_ASN_OP_T(^=, const sc_fix_fast &)

#undef DECL_ASN_OP_T
#undef DECL_ASN_OP_OTHER
#undef DECL_ASN_OP

    // auto-increment and auto-decrement
    const sc_fxval_fast operator ++ (int);
    const sc_fxval_fast operator -- (int);

    sc_fix_fast& operator ++ ();
    sc_fix_fast& operator -- ();
};


// IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII

// ----------------------------------------------------------------------------
//  CLASS : sc_fix
//
//  "Unconstrained" signed fixed-point class; arbitrary precision.
// ----------------------------------------------------------------------------

// constructors
inline sc_fix::sc_fix(sc_fxnum_observer *observer_) :
        sc_fxnum(sc_fxtype_params(), SC_TC_, sc_fxcast_switch(), observer_)
{}

inline sc_fix::sc_fix(int wl_, int iwl_, sc_fxnum_observer *observer_) :
        sc_fxnum(sc_fxtype_params(wl_, iwl_), SC_TC_, sc_fxcast_switch(),
                 observer_)
{}

inline sc_fix::sc_fix(sc_q_mode qm, sc_o_mode om,
                      sc_fxnum_observer *observer_) :
        sc_fxnum(sc_fxtype_params(qm, om), SC_TC_, sc_fxcast_switch(),
                 observer_ )
{}

inline sc_fix::sc_fix(sc_q_mode qm, sc_o_mode om, int nb,
                      sc_fxnum_observer *observer_) :
        sc_fxnum(sc_fxtype_params(qm, om, nb), SC_TC_, sc_fxcast_switch(),
                 observer_)
{}

inline sc_fix::sc_fix(int wl_, int iwl_, sc_q_mode qm, sc_o_mode om,
                      sc_fxnum_observer *observer_) :
        sc_fxnum(sc_fxtype_params(wl_, iwl_, qm, om), SC_TC_,
                 sc_fxcast_switch(), observer_)
{}

inline sc_fix::sc_fix(int wl_, int iwl_, sc_q_mode qm, sc_o_mode om, int nb,
                      sc_fxnum_observer* observer_) :
        sc_fxnum(sc_fxtype_params(wl_, iwl_, qm, om, nb), SC_TC_,
                 sc_fxcast_switch(), observer_)
{}

inline sc_fix::sc_fix(const sc_fxcast_switch &cast_sw,
                      sc_fxnum_observer *observer_) :
        sc_fxnum(sc_fxtype_params(), SC_TC_, cast_sw, observer_)
{}

inline sc_fix::sc_fix(int wl_, int iwl_, const sc_fxcast_switch &cast_sw,
                      sc_fxnum_observer *observer_) :
        sc_fxnum(sc_fxtype_params(wl_, iwl_), SC_TC_, cast_sw, observer_)
{}

inline sc_fix::sc_fix(sc_q_mode qm, sc_o_mode om,
                      const sc_fxcast_switch &cast_sw,
                      sc_fxnum_observer *observer_) :
        sc_fxnum(sc_fxtype_params(qm, om), SC_TC_, cast_sw, observer_)
{}

inline sc_fix::sc_fix(sc_q_mode qm, sc_o_mode om, int nb,
                      const sc_fxcast_switch &cast_sw,
                      sc_fxnum_observer *observer_) :
        sc_fxnum(sc_fxtype_params(qm, om, nb), SC_TC_, cast_sw, observer_)
{}

inline sc_fix::sc_fix(int wl_, int iwl_, sc_q_mode qm, sc_o_mode om,
                      const sc_fxcast_switch &cast_sw,
                      sc_fxnum_observer *observer_) :
        sc_fxnum(sc_fxtype_params(wl_, iwl_, qm, om), SC_TC_, cast_sw,
                                  observer_)
{}

inline sc_fix::sc_fix(int wl_, int iwl_, sc_q_mode qm, sc_o_mode om, int nb,
                      const sc_fxcast_switch &cast_sw,
                      sc_fxnum_observer *observer_) :
        sc_fxnum(sc_fxtype_params(wl_, iwl_, qm, om, nb), SC_TC_, cast_sw,
                 observer_)
{}

inline sc_fix::sc_fix(const sc_fxtype_params &type_params_,
                      sc_fxnum_observer *observer_) :
        sc_fxnum( type_params_, SC_TC_, sc_fxcast_switch(), observer_)
{}

inline sc_fix::sc_fix(const sc_fxtype_params &type_params_,
                      const sc_fxcast_switch &cast_sw,
                      sc_fxnum_observer *observer_) :
        sc_fxnum(type_params_, SC_TC_, cast_sw, observer_)
{}

#define DEFN_CTORS_T_A(tp) \
inline sc_fix::sc_fix(tp a, sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(), SC_TC_, sc_fxcast_switch(), \
                 observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, int wl_, int iwl_, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(wl_, iwl_), SC_TC_, sc_fxcast_switch(), \
                 observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a,  sc_q_mode qm, sc_o_mode om, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(qm, om), SC_TC_, sc_fxcast_switch(), \
                 observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, sc_q_mode qm, sc_o_mode om, int nb, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(qm, om, nb), SC_TC_, \
                 sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, int wl_, int iwl_, sc_q_mode qm, sc_o_mode om, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(wl_, iwl_, qm, om), SC_TC_, \
                 sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, int wl_, int iwl_, sc_q_mode qm, sc_o_mode om, \
                      int nb, sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(wl_, iwl_, qm, om, nb), SC_TC_, \
                 sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, const sc_fxcast_switch &cast_sw, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(), SC_TC_, cast_sw, observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, int wl_, int iwl_, \
                      const sc_fxcast_switch &cast_sw, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(wl_, iwl_), SC_TC_, cast_sw, observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, sc_q_mode qm, sc_o_mode om, \
                      const sc_fxcast_switch &cast_sw, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(qm, om), SC_TC_, cast_sw, observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, sc_q_mode qm, sc_o_mode om, int nb, \
                      const sc_fxcast_switch &cast_sw, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(qm, om, nb), SC_TC_, cast_sw, observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, int wl_, int iwl_, sc_q_mode qm, sc_o_mode om, \
                      const sc_fxcast_switch &cast_sw, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(wl_, iwl_, qm, om), SC_TC_, cast_sw, \
                 observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, int wl_, int iwl_, sc_q_mode qm, sc_o_mode om, \
                      int nb, const sc_fxcast_switch &cast_sw, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(wl_, iwl_, qm, om, nb), SC_TC_, cast_sw, \
                 observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, const sc_fxtype_params &type_params_, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, type_params_, SC_TC_, sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, const sc_fxtype_params &type_params_, \
                      const sc_fxcast_switch &cast_sw, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, type_params_, SC_TC_, cast_sw, observer_) \
{}

#define DEFN_CTORS_T_B(tp) \
inline sc_fix::sc_fix(tp a, sc_fxnum_observer *observer_) : \
        sc_fxnum(a, a.type_params(), SC_TC_, sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, int wl_, int iwl_, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(a.type_params(), wl_, iwl_), SC_TC_, \
                 sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, sc_q_mode qm, sc_o_mode om, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(a.type_params(), qm, om), SC_TC_, \
                 sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, sc_q_mode qm, sc_o_mode om, int nb, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(a.type_params(), qm, om, nb), SC_TC_, \
                 sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, int wl_, int iwl_, sc_q_mode qm, sc_o_mode om, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(wl_, iwl_, qm, om), SC_TC_, \
                 sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, int wl_, int iwl_, sc_q_mode qm, sc_o_mode om, \
                      int nb, sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(wl_, iwl_, qm, om, nb), SC_TC_, \
                 sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, const sc_fxcast_switch &cast_sw, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, a.type_params(), SC_TC_, cast_sw, observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, int wl_, int iwl_, \
                      const sc_fxcast_switch &cast_sw, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(a.type_params(), wl_, iwl_), SC_TC_, \
                 cast_sw, observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, sc_q_mode qm, sc_o_mode om, \
                      const sc_fxcast_switch &cast_sw, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(a.type_params(), qm, om), SC_TC_, \
                 cast_sw, observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, sc_q_mode qm, sc_o_mode om, int nb, \
                      const sc_fxcast_switch &cast_sw, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(a.type_params(), qm, om, nb), SC_TC_, \
                 cast_sw, observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, int wl_, int iwl_, sc_q_mode qm, sc_o_mode om, \
                      const sc_fxcast_switch &cast_sw, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(wl_, iwl_, qm, om), SC_TC_, cast_sw, \
                 observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, int wl_, int iwl_, sc_q_mode qm, sc_o_mode om, \
                      int nb, const sc_fxcast_switch &cast_sw, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, sc_fxtype_params(wl_, iwl_, qm, om, nb), SC_TC_, cast_sw, \
                 observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, const sc_fxtype_params &type_params_, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, type_params_, SC_TC_, sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix::sc_fix(tp a, const sc_fxtype_params &type_params_, \
                      const sc_fxcast_switch &cast_sw, \
                      sc_fxnum_observer *observer_) : \
        sc_fxnum(a, type_params_, SC_TC_, cast_sw, observer_) \
{}

DEFN_CTORS_T_A(int)
DEFN_CTORS_T_A(unsigned int)
DEFN_CTORS_T_A(long)
DEFN_CTORS_T_A(unsigned long)
DEFN_CTORS_T_A(float)
DEFN_CTORS_T_A(double)
DEFN_CTORS_T_A(const char *)
DEFN_CTORS_T_A(const sc_fxval &)
DEFN_CTORS_T_A(const sc_fxval_fast &)
DEFN_CTORS_T_B(const sc_fxnum &)
DEFN_CTORS_T_B(const sc_fxnum_fast &)

DEFN_CTORS_T_A(int64)
DEFN_CTORS_T_A(uint64)
DEFN_CTORS_T_A(const sc_int_base &)
DEFN_CTORS_T_A(const sc_uint_base &)
DEFN_CTORS_T_A(const sc_signed &)
DEFN_CTORS_T_A(const sc_unsigned &)

#undef DEFN_CTORS_T_A
#undef DEFN_CTORS_T_B

// copy constructor
inline sc_fix::sc_fix(const sc_fix &a) :
        sc_fxnum(a, a.type_params(), SC_TC_, sc_fxcast_switch(), 0)
{}

// unary bitwise operators
inline const sc_fix sc_fix::operator ~ () const
{
    SC_FXNUM_OBSERVER_READ_(*this)
    int iwl_c = iwl();
    int wl_c = wl();
    sc_fix c(wl_c, iwl_c);
    for (int i = iwl_c - wl_c; i < iwl_c; ++i)
        c.set_bit(i, !get_bit(i));
    return sc_fix(c, wl_c, iwl_c);
}

// unary bitwise functions
inline void
b_not(sc_fix &c, const sc_fix &a)
{
    SC_FXNUM_OBSERVER_READ_(a)
    int iwl_c = c.iwl();
    for (int i = iwl_c - c.wl(); i < iwl_c; ++i)
        c.set_bit(i, !a.get_bit(i));
    c.cast();
    SC_FXNUM_OBSERVER_WRITE_(c)
}

// binary bitwise operators
#define DEFN_BIN_OP_T(op, op2, tp1, tp2) \
inline const sc_fix \
operator op (const tp1 &a, const tp2 &b) \
{ \
    a.observer_read(); \
    b.observer_read(); \
    int iwl_a = a.iwl(); \
    int iwl_b = b.iwl(); \
    int iwl_c = sc_max(iwl_a, iwl_b); \
    int fwl_c = sc_max(a.wl() - iwl_a, b.wl() - iwl_b); \
    sc_fix c(iwl_c + fwl_c, iwl_c); \
    for (int i = -fwl_c; i < iwl_c; ++ i) \
        c.set_bit(i, a.get_bit(i) op2 b.get_bit(i)); \
    return sc_fix(c, iwl_c + fwl_c, iwl_c); \
}

DEFN_BIN_OP_T(&, &&, sc_fix, sc_fix)
DEFN_BIN_OP_T(&, &&, sc_fix, sc_fix_fast)
DEFN_BIN_OP_T(&, &&, sc_fix_fast, sc_fix)

DEFN_BIN_OP_T(|, ||, sc_fix, sc_fix)
DEFN_BIN_OP_T(|, ||, sc_fix, sc_fix_fast)
DEFN_BIN_OP_T(|, ||, sc_fix_fast, sc_fix)

DEFN_BIN_OP_T(^, !=, sc_fix, sc_fix)
DEFN_BIN_OP_T(^, !=, sc_fix, sc_fix_fast)
DEFN_BIN_OP_T(^, !=, sc_fix_fast, sc_fix)

#undef DEFN_BIN_OP_T

// binary bitwise functions
#define DEFN_BIN_FNC_T(fnc, op2, tp1, tp2) \
inline void \
fnc (sc_fix &c, const tp1 &a, const tp2 &b) \
{ \
    a.observer_read(); \
    b.observer_read(); \
    int iwl_c = c.iwl(); \
    for (int i = iwl_c - c.wl(); i < iwl_c; ++i) \
        c.set_bit(i, a.get_bit(i) op2 b.get_bit(i)); \
    c.cast(); \
    SC_FXNUM_OBSERVER_WRITE_(c) \
}

DEFN_BIN_FNC_T(b_and, &&, sc_fix, sc_fix)
DEFN_BIN_FNC_T(b_and, &&, sc_fix, sc_fix_fast)
DEFN_BIN_FNC_T(b_and, &&, sc_fix_fast, sc_fix)

DEFN_BIN_FNC_T(b_or, ||, sc_fix, sc_fix)
DEFN_BIN_FNC_T(b_or, ||, sc_fix, sc_fix_fast)
DEFN_BIN_FNC_T(b_or, ||, sc_fix_fast, sc_fix)

DEFN_BIN_FNC_T(b_xor, !=, sc_fix, sc_fix)
DEFN_BIN_FNC_T(b_xor, !=, sc_fix, sc_fix_fast)
DEFN_BIN_FNC_T(b_xor, !=, sc_fix_fast, sc_fix)

#undef DEFN_BIN_FNC_T

// assignment operators
inline
sc_fix &
sc_fix::operator = (const sc_fix &a)
{
    sc_fxnum::operator = (a);
    return *this;
}

#define DEFN_ASN_OP_T(op, tp) \
inline sc_fix & \
sc_fix::operator op (tp a) \
{ \
    sc_fxnum::operator op(a); \
    return *this; \
}

#define DEFN_ASN_OP_OTHER(op) \
DEFN_ASN_OP_T(op, int64) \
DEFN_ASN_OP_T(op, uint64) \
DEFN_ASN_OP_T(op, const sc_int_base &) \
DEFN_ASN_OP_T(op, const sc_uint_base &) \
DEFN_ASN_OP_T(op, const sc_signed &) \
DEFN_ASN_OP_T(op, const sc_unsigned &)

#define DEFN_ASN_OP(op) \
DEFN_ASN_OP_T(op, int) \
DEFN_ASN_OP_T(op, unsigned int) \
DEFN_ASN_OP_T(op, long) \
DEFN_ASN_OP_T(op, unsigned long) \
DEFN_ASN_OP_T(op, float) \
DEFN_ASN_OP_T(op, double) \
DEFN_ASN_OP_T(op, const char *) \
DEFN_ASN_OP_T(op, const sc_fxval &) \
DEFN_ASN_OP_T(op, const sc_fxval_fast &) \
DEFN_ASN_OP_T(op, const sc_fxnum &) \
DEFN_ASN_OP_T(op, const sc_fxnum_fast &) \
DEFN_ASN_OP_OTHER(op)

DEFN_ASN_OP(=)

DEFN_ASN_OP(*=)
DEFN_ASN_OP(/=)
DEFN_ASN_OP(+=)
DEFN_ASN_OP(-=)

DEFN_ASN_OP_T(<<=, int)
DEFN_ASN_OP_T(>>=, int)

#undef DEFN_ASN_OP_T
#undef DEFN_ASN_OP_OTHER
#undef DEFN_ASN_OP

#define DEFN_ASN_OP_T(op, op2, tp) \
inline sc_fix & \
sc_fix::operator op (const tp &b) \
{ \
    SC_FXNUM_OBSERVER_READ_(*this) \
    b.observer_read(); \
    int iwl_c = iwl(); \
    for (int i = iwl_c - wl(); i < iwl_c; ++i) \
        set_bit(i, get_bit(i) op2 b.get_bit(i)); \
    cast(); \
    SC_FXNUM_OBSERVER_WRITE_(*this) \
    return *this; \
}

DEFN_ASN_OP_T(&=, &&, sc_fix)
DEFN_ASN_OP_T(&=, &&, sc_fix_fast)
DEFN_ASN_OP_T(|=, ||, sc_fix)
DEFN_ASN_OP_T(|=, ||, sc_fix_fast)
DEFN_ASN_OP_T(^=, !=, sc_fix)
DEFN_ASN_OP_T(^=, !=, sc_fix_fast)

#undef DEFN_ASN_OP_T

// auto-increment and auto-decrement
inline const sc_fxval
sc_fix::operator ++ (int)
{
    return sc_fxval(sc_fxnum::operator ++ (0));
}

inline const sc_fxval
sc_fix::operator -- (int)
{
    return sc_fxval(sc_fxnum::operator -- (0));
}

inline sc_fix &
sc_fix::operator ++ ()
{
    sc_fxnum::operator ++ ();
    return *this;
}

inline sc_fix &
sc_fix::operator -- ()
{
    sc_fxnum::operator -- ();
    return *this;
}


// ----------------------------------------------------------------------------
// CLASS : sc_fix_fast
//
// "Unconstrained" signed fixed-point class; limited precision.
// ----------------------------------------------------------------------------

// constructors
inline sc_fix_fast::sc_fix_fast(sc_fxnum_fast_observer *observer_) :
        sc_fxnum_fast(sc_fxtype_params(), SC_TC_, sc_fxcast_switch(),
                      observer_)
{}

inline sc_fix_fast::sc_fix_fast(int wl_, int iwl_,
                                sc_fxnum_fast_observer *observer_) :
        sc_fxnum_fast(sc_fxtype_params(wl_, iwl_), SC_TC_, sc_fxcast_switch(),
                      observer_ )
{}

inline sc_fix_fast::sc_fix_fast(sc_q_mode qm, sc_o_mode om,
                                sc_fxnum_fast_observer *observer_) :
        sc_fxnum_fast(sc_fxtype_params(qm, om), SC_TC_, sc_fxcast_switch(),
                      observer_ )
{}

inline sc_fix_fast::sc_fix_fast(sc_q_mode qm, sc_o_mode om, int nb,
                                sc_fxnum_fast_observer *observer_) :
        sc_fxnum_fast(sc_fxtype_params(qm, om, nb), SC_TC_, sc_fxcast_switch(),
                      observer_ )
{}

inline sc_fix_fast::sc_fix_fast(int wl_, int iwl_, sc_q_mode qm, sc_o_mode om,
                                sc_fxnum_fast_observer *observer_) :
        sc_fxnum_fast(sc_fxtype_params(wl_, iwl_, qm, om), SC_TC_,
                      sc_fxcast_switch(), observer_)
{}

inline sc_fix_fast::sc_fix_fast(int wl_, int iwl_, sc_q_mode qm, sc_o_mode om,
                                int nb, sc_fxnum_fast_observer *observer_) :
        sc_fxnum_fast(sc_fxtype_params(wl_, iwl_, qm, om, nb), SC_TC_,
                      sc_fxcast_switch(), observer_)
{}

inline sc_fix_fast::sc_fix_fast(const sc_fxcast_switch &cast_sw,
                                sc_fxnum_fast_observer *observer_) :
        sc_fxnum_fast(sc_fxtype_params(), SC_TC_, cast_sw, observer_)
{}

inline sc_fix_fast::sc_fix_fast(int wl_, int iwl_,
                                const sc_fxcast_switch &cast_sw,
                                sc_fxnum_fast_observer *observer_) :
        sc_fxnum_fast(sc_fxtype_params(wl_, iwl_), SC_TC_, cast_sw, observer_)
{}

inline sc_fix_fast::sc_fix_fast(sc_q_mode qm, sc_o_mode om,
                                const sc_fxcast_switch &cast_sw,
                                sc_fxnum_fast_observer *observer_) :
        sc_fxnum_fast(sc_fxtype_params(qm, om), SC_TC_, cast_sw, observer_)
{}

inline sc_fix_fast::sc_fix_fast(sc_q_mode qm, sc_o_mode om, int nb,
                                const sc_fxcast_switch &cast_sw,
                                sc_fxnum_fast_observer *observer_) :
        sc_fxnum_fast(sc_fxtype_params(qm, om, nb), SC_TC_, cast_sw, observer_)
{}

inline sc_fix_fast::sc_fix_fast(int wl_, int iwl_, sc_q_mode qm, sc_o_mode om,
                                const sc_fxcast_switch &cast_sw,
                                sc_fxnum_fast_observer *observer_) :
        sc_fxnum_fast(sc_fxtype_params(wl_, iwl_, qm, om), SC_TC_, cast_sw,
                      observer_)
{}

inline sc_fix_fast::sc_fix_fast(int wl_, int iwl_, sc_q_mode qm, sc_o_mode om,
                                int nb, const sc_fxcast_switch &cast_sw,
                                sc_fxnum_fast_observer *observer_) :
        sc_fxnum_fast(sc_fxtype_params(wl_, iwl_, qm, om, nb), SC_TC_, cast_sw,
                      observer_)
{}

inline sc_fix_fast::sc_fix_fast(const sc_fxtype_params &type_params_,
                                sc_fxnum_fast_observer *observer_) :
        sc_fxnum_fast(type_params_, SC_TC_, sc_fxcast_switch(), observer_)
{}

inline sc_fix_fast::sc_fix_fast(const sc_fxtype_params &type_params_,
                                const sc_fxcast_switch &cast_sw,
                                sc_fxnum_fast_observer *observer_) :
        sc_fxnum_fast(type_params_, SC_TC_, cast_sw, observer_)
{}

#define DEFN_CTORS_T_A(tp) \
inline sc_fix_fast::sc_fix_fast(tp a, sc_fxnum_fast_observer *observer_ ) : \
        sc_fxnum_fast(a, sc_fxtype_params(), SC_TC_, sc_fxcast_switch(), \
                      observer_ ) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, int wl_, int iwl_, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(wl_, iwl_), SC_TC_, \
                      sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, sc_q_mode qm, sc_o_mode om, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(qm, om), SC_TC_, \
                      sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, sc_q_mode qm, sc_o_mode om, int nb, \
                                sc_fxnum_fast_observer *observer_ ) : \
        sc_fxnum_fast(a, sc_fxtype_params(qm, om, nb), SC_TC_, \
                      sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, int wl_, int iwl_, sc_q_mode qm, \
                                sc_o_mode om, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(wl_, iwl_, qm, om), SC_TC_, \
                      sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, int wl_, int iwl_, sc_q_mode qm, \
                                sc_o_mode om, int nb, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(wl_, iwl_, qm, om, nb), SC_TC_, \
                      sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, const sc_fxcast_switch &cast_sw, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(), SC_TC_, cast_sw, observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, int wl_, int iwl_, \
                                const sc_fxcast_switch &cast_sw, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(wl_, iwl_), SC_TC_, cast_sw, \
                      observer_ ) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, sc_q_mode qm, sc_o_mode om, \
                                const sc_fxcast_switch &cast_sw, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(qm, om), SC_TC_, cast_sw, \
                      observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, sc_q_mode qm, sc_o_mode om, int nb, \
                                const sc_fxcast_switch &cast_sw, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(qm, om, nb), SC_TC_, cast_sw, \
                      observer_ ) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, int wl_, int iwl_, sc_q_mode qm, \
                                sc_o_mode om, \
                                const sc_fxcast_switch &cast_sw, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(wl_, iwl_, qm, om), SC_TC_, \
                      cast_sw, observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, int wl_, int iwl_, sc_q_mode qm, \
                                sc_o_mode om, int nb, \
                                const sc_fxcast_switch &cast_sw, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(wl_, iwl_, qm, om, nb), SC_TC_, \
                      cast_sw, observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, const sc_fxtype_params &type_params_, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, type_params_, SC_TC_, sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, const sc_fxtype_params &type_params_, \
                                const sc_fxcast_switch &cast_sw, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, type_params_, SC_TC_, cast_sw, observer_) \
{}

#define DEFN_CTORS_T_B(tp) \
inline sc_fix_fast::sc_fix_fast(tp a, sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, a.type_params(), SC_TC_, sc_fxcast_switch(), \
                      observer_ ) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, int wl_, int iwl_, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(a.type_params(), wl_, iwl_), \
                      SC_TC_, sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, sc_q_mode qm, sc_o_mode om, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(a.type_params(), qm, om), SC_TC_, \
                      sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, sc_q_mode qm, sc_o_mode om, int nb, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(a.type_params(), qm, om, nb), \
                      SC_TC_, sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, int wl_, int iwl_, sc_q_mode qm, \
                                sc_o_mode om, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(wl_, iwl_, qm, om), SC_TC_, \
                      sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, int wl_, int iwl_, sc_q_mode qm, \
                                sc_o_mode om, int nb, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(wl_, iwl_, qm, om, nb), SC_TC_, \
                      sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, const sc_fxcast_switch &cast_sw, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, a.type_params(), SC_TC_, cast_sw, observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, int wl_, int iwl_, \
                                const sc_fxcast_switch &cast_sw, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(a.type_params(), wl_, iwl_), \
                      SC_TC_, cast_sw, observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, sc_q_mode qm, sc_o_mode om, \
                                const sc_fxcast_switch &cast_sw, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(a.type_params(), qm, om), SC_TC_, \
                      cast_sw, observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, sc_q_mode qm, sc_o_mode om, int nb, \
                                const sc_fxcast_switch &cast_sw, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(a.type_params(), qm, om, nb), \
                      SC_TC_, cast_sw, observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, int wl_, int iwl_, sc_q_mode qm, \
                                sc_o_mode om, \
                                const sc_fxcast_switch &cast_sw, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(wl_, iwl_, qm, om), SC_TC_, \
                      cast_sw, observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, int wl_, int iwl_, sc_q_mode qm, \
                                sc_o_mode om, int nb, \
                                const sc_fxcast_switch &cast_sw, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, sc_fxtype_params(wl_, iwl_, qm, om, nb), SC_TC_, \
                      cast_sw, observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, const sc_fxtype_params &type_params_, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, type_params_, SC_TC_, sc_fxcast_switch(), observer_) \
{} \
 \
inline sc_fix_fast::sc_fix_fast(tp a, const sc_fxtype_params &type_params_, \
                                const sc_fxcast_switch &cast_sw, \
                                sc_fxnum_fast_observer *observer_) : \
        sc_fxnum_fast(a, type_params_, SC_TC_, cast_sw, observer_ ) \
{}

DEFN_CTORS_T_A(int)
DEFN_CTORS_T_A(unsigned int)
DEFN_CTORS_T_A(long)
DEFN_CTORS_T_A(unsigned long)
DEFN_CTORS_T_A(float)
DEFN_CTORS_T_A(double)
DEFN_CTORS_T_A(const char *)
DEFN_CTORS_T_A(const sc_fxval &)
DEFN_CTORS_T_A(const sc_fxval_fast &)
DEFN_CTORS_T_B(const sc_fxnum &)
DEFN_CTORS_T_B(const sc_fxnum_fast &)

DEFN_CTORS_T_A(int64)
DEFN_CTORS_T_A(uint64)
DEFN_CTORS_T_A(const sc_int_base &)
DEFN_CTORS_T_A(const sc_uint_base &)
DEFN_CTORS_T_A(const sc_signed &)
DEFN_CTORS_T_A(const sc_unsigned &)

#undef DEFN_CTORS_T_A
#undef DEFN_CTORS_T_B

// copy constructor
inline sc_fix_fast::sc_fix_fast(const sc_fix_fast &a) :
        sc_fxnum_fast(a, a.type_params(), SC_TC_, sc_fxcast_switch(), 0)
{}

// unary bitwise operators
inline const sc_fix_fast
sc_fix_fast::operator ~ () const
{
    SC_FXNUM_FAST_OBSERVER_READ_(*this)
    int iwl_c = iwl();
    int wl_c = wl();
    sc_fix_fast c(wl_c, iwl_c);
    for (int i = iwl_c - wl_c; i < iwl_c; ++i)
        c.set_bit(i, !get_bit(i));
    return sc_fix_fast(c, wl_c, iwl_c);
}

// unary bitwise functions
inline void
b_not(sc_fix_fast &c, const sc_fix_fast &a)
{
    SC_FXNUM_FAST_OBSERVER_READ_(a)
    int iwl_c = c.iwl();
    for (int i = iwl_c - c.wl(); i < iwl_c; ++i)
        c.set_bit(i, !a.get_bit(i));
    c.cast();
    SC_FXNUM_FAST_OBSERVER_WRITE_(c)
}

// binary bitwise operators
#define DEFN_BIN_OP_T(op, op2, tp1, tp2) \
inline const sc_fix_fast \
operator op (const tp1 &a, const tp2 &b) \
{ \
    a.observer_read(); \
    b.observer_read(); \
    int iwl_a = a.iwl(); \
    int iwl_b = b.iwl(); \
    int iwl_c = sc_max(iwl_a, iwl_b); \
    int fwl_c = sc_max(a.wl() - iwl_a, b.wl() - iwl_b); \
    sc_fix_fast c(iwl_c + fwl_c, iwl_c); \
    for (int i = -fwl_c; i < iwl_c; ++i) \
        c.set_bit(i, a.get_bit(i) op2 b.get_bit(i)); \
    return sc_fix_fast(c, iwl_c + fwl_c, iwl_c); \
}

DEFN_BIN_OP_T(&, &&, sc_fix_fast, sc_fix_fast)
DEFN_BIN_OP_T(|, ||, sc_fix_fast, sc_fix_fast)
DEFN_BIN_OP_T(^, !=, sc_fix_fast, sc_fix_fast)

#undef DEFN_BIN_OP_T

// binary bitwise functions
#define DEFN_BIN_FNC_T(fnc, op2, tp1, tp2) \
inline void \
fnc(sc_fix_fast &c, const tp1 &a, const tp2 &b) \
{ \
    a.observer_read(); \
    b.observer_read(); \
    int iwl_c = c.iwl(); \
    for (int i = iwl_c - c.wl(); i < iwl_c; ++i) \
        c.set_bit(i, a.get_bit(i) op2 b.get_bit(i)); \
    c.cast(); \
    SC_FXNUM_FAST_OBSERVER_WRITE_(c) \
}

DEFN_BIN_FNC_T(b_and, &&, sc_fix_fast, sc_fix_fast)
DEFN_BIN_FNC_T(b_or, ||, sc_fix_fast, sc_fix_fast)
DEFN_BIN_FNC_T(b_xor, !=, sc_fix_fast, sc_fix_fast)

#undef DEFN_BIN_FNC_T

// assignment operators
inline sc_fix_fast &
sc_fix_fast::operator = (const sc_fix_fast &a)
{
    sc_fxnum_fast::operator = (a);
    return *this;
}

#define DEFN_ASN_OP_T(op, tp) \
inline sc_fix_fast & \
sc_fix_fast::operator op (tp a) \
{ \
    sc_fxnum_fast::operator op(a); \
    return *this; \
}

#define DEFN_ASN_OP_OTHER(op) \
DEFN_ASN_OP_T(op, int64) \
DEFN_ASN_OP_T(op, uint64) \
DEFN_ASN_OP_T(op, const sc_int_base &) \
DEFN_ASN_OP_T(op, const sc_uint_base &) \
DEFN_ASN_OP_T(op, const sc_signed &) \
DEFN_ASN_OP_T(op, const sc_unsigned &)

#define DEFN_ASN_OP(op) \
DEFN_ASN_OP_T(op, int) \
DEFN_ASN_OP_T(op, unsigned int) \
DEFN_ASN_OP_T(op, long) \
DEFN_ASN_OP_T(op, unsigned long) \
DEFN_ASN_OP_T(op, float) \
DEFN_ASN_OP_T(op, double) \
DEFN_ASN_OP_T(op, const char *) \
DEFN_ASN_OP_T(op, const sc_fxval &) \
DEFN_ASN_OP_T(op, const sc_fxval_fast &) \
DEFN_ASN_OP_T(op, const sc_fxnum &) \
DEFN_ASN_OP_T(op, const sc_fxnum_fast &) \
DEFN_ASN_OP_OTHER(op)

DEFN_ASN_OP(=)

DEFN_ASN_OP(*=)
DEFN_ASN_OP(/=)
DEFN_ASN_OP(+=)
DEFN_ASN_OP(-=)

DEFN_ASN_OP_T(<<=, int)
DEFN_ASN_OP_T(>>=, int)

#undef DEFN_ASN_OP_T
#undef DEFN_ASN_OP_OTHER
#undef DEFN_ASN_OP

#define DEFN_ASN_OP_T(op, op2, tp) \
inline sc_fix_fast & \
sc_fix_fast::operator op (const tp &b) \
{ \
    SC_FXNUM_FAST_OBSERVER_READ_(*this) \
    b.observer_read(); \
    int iwl_c = iwl(); \
    for (int i = iwl_c - wl(); i < iwl_c; ++i) \
        set_bit(i, get_bit(i) op2 b.get_bit(i)); \
    cast(); \
    SC_FXNUM_FAST_OBSERVER_WRITE_(*this) \
    return *this; \
}

DEFN_ASN_OP_T(&=, &&, sc_fix)
DEFN_ASN_OP_T(&=, &&, sc_fix_fast)
DEFN_ASN_OP_T(|=, ||, sc_fix)
DEFN_ASN_OP_T(|=, ||, sc_fix_fast)
DEFN_ASN_OP_T(^=, !=, sc_fix)
DEFN_ASN_OP_T(^=, !=, sc_fix_fast)

#undef DEFN_ASN_OP_T

// auto-increment and auto-decrement
inline const sc_fxval_fast
sc_fix_fast::operator ++ (int)
{
    return sc_fxval_fast(sc_fxnum_fast::operator ++ (0));
}

inline const sc_fxval_fast
sc_fix_fast::operator -- (int)
{
    return sc_fxval_fast(sc_fxnum_fast::operator -- (0));
}

inline sc_fix_fast &
sc_fix_fast::operator ++ ()
{
    sc_fxnum_fast::operator ++ ();
    return *this;
}

inline sc_fix_fast &
sc_fix_fast::operator -- ()
{
    sc_fxnum_fast::operator -- ();
    return *this;
}

} // namespace sc_dt

#endif // __SYSTEMC_EXT_DT_FX_SC_FIX_HH__