src/systemc/tests/systemc/datatypes/fx/arith_big/add_big.cpp

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  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
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  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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/*****************************************************************************

  add_big.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:
  Description of Modification:

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// This may look like C code, but it is really -*- C++ -*-
// 
// add_big.cxx -- 
// Copyright Synopsys 1998
// Author          : Ric Hilderink
// Created On      : Fri Jan 15 12:35:43 1999
// Status          : none
// 


#define SC_INCLUDE_FX
#include "systemc.h"


#define SHOW(r, m) \
out << r.to_string(SC_BIN) << " " << flush; \
out << r.to_string(SC_HEX) << " " << flush; \
out << m.to_string(SC_BIN) << " " << flush; \
out << m.to_string(SC_HEX) << "\n" << flush


#define BIG_ARROW(T_op)							      \
{									      \
  out << "______________________ " #T_op " ______________________\n";         \
  out << "______________________ UP        ______________________\n";         \
  sc_fxtype_params fooc(T_WL, T_IWL, SC_RND, SC_SAT);                        \
  T_op m(1); \
  T_op r(1); \
  int i;								      \
  for (i = 0; i < T_WL + 10; ++i)						      \
    {									      \
      r += r + (r >> 1);								      \
      SHOW(r, m);							      \
      m *= 16;								      \
    }									      \
  out << "______________________ DOWN      ______________________\n";         \
  m = 1;								      \
  for (i = 0; i < T_WL + 10; ++i)			                      \
    {									      \
      r -= m;								      \
      SHOW(r, m);							      \
      m *= 16;								      \
    }									      \
}

#define T_FX_FLOAT  sc_fxval
#define T_FX_UFIX   sc_ufix
#define T_FX_FIX    sc_fix
#define T_FX_FIXED  sc_fixed<T_WL, T_IWL>
#define T_FX_UFIXED sc_ufixed<T_WL, T_IWL>

#define THE_BIG_ARROW							      \
BIG_ARROW(T_FX_FLOAT)							      \
BIG_ARROW(T_FX_UFIX)							      \
BIG_ARROW(T_FX_FIX)							      \
BIG_ARROW(T_FX_FIXED)							      \
BIG_ARROW(T_FX_UFIXED)


void add_big(ostream& out)
{
  out.precision(15);

#define T_WL 16
#define T_IWL T_WL
  out << "************* add_big " << T_WL << " ***************\n";
  THE_BIG_ARROW;
#undef T_WL
#undef T_IWL
#define T_WL 67
#define T_IWL T_WL
  out << "************* add_big " << T_WL << " ***************\n";
  THE_BIG_ARROW;
#undef T_WL
#undef T_IWL
#define T_WL 150
#define T_IWL T_WL
  out << "************* add_big " << T_WL << " ***************\n";
  THE_BIG_ARROW;
}