diff options
Diffstat (limited to 'src/systemc/ext/dt/fx/scfx_pow10.hh')
-rw-r--r-- | src/systemc/ext/dt/fx/scfx_pow10.hh | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/systemc/ext/dt/fx/scfx_pow10.hh b/src/systemc/ext/dt/fx/scfx_pow10.hh new file mode 100644 index 000000000..e67595fc4 --- /dev/null +++ b/src/systemc/ext/dt/fx/scfx_pow10.hh @@ -0,0 +1,86 @@ +/***************************************************************************** + + 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. + + *****************************************************************************/ + +/***************************************************************************** + + 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: + + *****************************************************************************/ + +// $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__ |