src/systemc/tests/systemc/datatypes/fx/ranges/range_fx.cpp

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  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
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  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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/*****************************************************************************

  range_fx.cpp -- 

  Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15

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

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

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

      Name, Affiliation, Date:
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// This may look like C code, but it is really -*- C++ -*-
// 
// range_fx.cxx -- 
// Copyright Synopsys 1998
// Author          : Ric Hilderink
// Created On      : Mon Jan 11 13:03:27 1999
// Status          : none
// 


#include <limits.h>
#define SC_INCLUDE_FX
#define SC_FXVAL_IMPLICIT_FXVAL
#include "systemc.h"

#define T_FX_FLOAT  sc_fxval
#define T_FX_UFIX   sc_ufix
#define T_FX_FIX    sc_fix
#define T_FX_FIXED  sc_fixed<222,111>
#define T_FX_UFIXED sc_ufixed<222,111>

#define RANGE_TO_MIN(FX_TTT) \
{									      \
  FX_TTT x(1); \
  FX_TTT d(1); \
									      \
  int i;								      \
  for (i = 0; i < 300; ++i)						      \
    {									      \
      d = d / 2;							      \
      x += d;								      \
      out << i << " " << d.to_double() << " " << x.to_double() << " " << x.to_string(SC_BIN, SC_E) << "\n"; \
    }									      \
}									      


#define RANGE_MIN_MAX(FX_TTT) \
{									      \
  FX_TTT x(1); \
  FX_TTT d(4); \
  FX_TTT e(0.125);                                                           \
  int i;								      \
  for (i = 0; i < 300; ++i)						      \
    {									      \
      d = d * 2;							      \
      e = e / 2;                                                              \
      x += d + e;							      \
      out << i << " " << d.to_double() << " " << x.to_double() << " " << x.to_string(SC_BIN, SC_E) << "\n"; \
    }									      \
  for (i = 0; i < 300; ++i)						      \
    {									      \
      x -= (d + e);							      \
      out << i << " " << d.to_double() << " " << x.to_double() << " " << x.to_string(SC_BIN, SC_E) << "\n"; \
      d = d / 2;							      \
      e = e * 2;                                                              \
    }									      \
}

#define RANGE_TO_MAX(FX_TTT) \
{									      \
  FX_TTT x(1); \
  FX_TTT d(1); \
  int i;								      \
  for (i = 0; i < 300; ++i)						      \
    {									      \
      d = d * 2;							      \
      x += d;								      \
      out << i << " " << d.to_double() << " " << x.to_double() << " " << x.to_string(SC_BIN, SC_E) << "\n"; \
    }									      \
  for (i = 0; i < 300; ++i)						      \
    {									      \
      x -= d;								      \
      out << i << " " << d.to_double() << " " << x.to_double() << " " << x.to_string(SC_BIN, SC_E) << "\n"; \
      d = d / 2;							      \
    }									      \
}


static void range_to_min(ostream& out)
{
  RANGE_TO_MIN(T_FX_FLOAT);
  RANGE_TO_MIN(T_FX_UFIX);
  RANGE_TO_MIN(T_FX_FIX);
  RANGE_TO_MIN(T_FX_FIXED);
  RANGE_TO_MIN(T_FX_UFIXED);
}

static void range_to_max(ostream& out)
{
  RANGE_TO_MAX(T_FX_FLOAT);
  RANGE_TO_MAX(T_FX_UFIX);
  RANGE_TO_MAX(T_FX_FIX);
  RANGE_TO_MAX(T_FX_FIXED);
  RANGE_TO_MAX(T_FX_UFIXED);
}

static void range_min_max(ostream& out)
{
  RANGE_MIN_MAX(T_FX_FLOAT);
  RANGE_MIN_MAX(T_FX_UFIX);
  RANGE_MIN_MAX(T_FX_FIX);
  RANGE_MIN_MAX(T_FX_FIXED);
  RANGE_MIN_MAX(T_FX_UFIXED);
}


void range_fx(ostream& out)
{
  sc_fxtype_params fooCast(222, 111, SC_RND, SC_SAT);
  out << "************** range_FX_TTT\n";
  range_to_min(out);
  range_to_max(out);
  range_min_max(out);
}