xref: /gem5/src/systemc/ext/dt/fx/scfx_pow10.hh

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  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
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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 __SYSTEMC_EXT_DT_FX_SCFX_POW10_HH__
#define __SYSTEMC_EXT_DT_FX_SCFX_POW10_HH__

#include "scfx_rep.hh"

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 // __SYSTEMC_EXT_DT_FX_SCFX_POW10_HH__