xref: /gem5/ext/systemc/src/sysc/datatypes/fx/scfx_pow10.h

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

  scfx_pow10.h -

  Original Author: Robert Graulich, Synopsys, Inc.
                   Martin Janssen,  Synopsys, Inc.

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

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

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

      Name, Affiliation, Date:
  Description of Modification:

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// $Log: scfx_pow10.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_POW10_H
#define SCFX_POW10_H


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


namespace sc_dt
{

// classes defined in this module
class scfx_pow10;


// ----------------------------------------------------------------------------
//  CLASS : scfx_pow10
//
//  Class to compute (and cache) powers of 10 in arbitrary precision.
// ----------------------------------------------------------------------------

const int SCFX_POW10_TABLE_SIZE = 32;


class scfx_pow10
{

public:

    scfx_pow10();
    ~scfx_pow10();

    const scfx_rep operator() ( int );

private:

    scfx_rep* pos( int );
    scfx_rep* neg( int );

    scfx_rep m_pos[SCFX_POW10_TABLE_SIZE];
    scfx_rep m_neg[SCFX_POW10_TABLE_SIZE];
};

} // namespace sc_dt


#endif

// Taf!