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Diffstat (limited to 'ext/systemc/src/sysc/datatypes/misc/sc_value_base.h')
-rw-r--r-- | ext/systemc/src/sysc/datatypes/misc/sc_value_base.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/ext/systemc/src/sysc/datatypes/misc/sc_value_base.h b/ext/systemc/src/sysc/datatypes/misc/sc_value_base.h new file mode 100644 index 000000000..1a2c73d42 --- /dev/null +++ b/ext/systemc/src/sysc/datatypes/misc/sc_value_base.h @@ -0,0 +1,129 @@ +/***************************************************************************** + + 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. + + *****************************************************************************/ + +/***************************************************************************** + + sc_value_base.h -- Base class for SystemC bit values. + + Original Author: Andy Goodrich, Forte Design Systems + + *****************************************************************************/ + +/***************************************************************************** + + MODIFICATION LOG - modifiers, enter your name, affiliation, date and + changes you are making here. + + Name, Affiliation, Date: + Description of Modification: + + *****************************************************************************/ + +// $Log: sc_value_base.h,v $ +// Revision 1.4 2011/08/29 18:04:32 acg +// Philipp A. Hartmann: miscellaneous clean ups. +// +// Revision 1.3 2011/08/24 22:05:48 acg +// Torsten Maehne: initialization changes to remove warnings. +// +// Revision 1.2 2011/06/28 21:23:04 acg +// Andy Goodrich: merging of SCV tree. +// +// Revision 1.1.1.1 2006/12/15 20:20:05 acg +// SystemC 2.3 +// +// Revision 1.3 2006/01/13 18:54:01 acg +// Andy Goodrich: added $Log command so that CVS comments are reproduced in +// the source. +// + +#ifndef SC_VALUE_BASE_H +#define SC_VALUE_BASE_H + + +#include "sysc/datatypes/int/sc_nbdefs.h" + +namespace sc_dt +{ + +class sc_signed; +class sc_unsigned; + +// ---------------------------------------------------------------------------- +// CLASS : sc_value_base +// +// Abstract base class of all SystemC native variables. It provides +// support for concatenation operations via a set of virtual methods. +// A general description of the methods appear with their default +// definitions in sc_object.cpp. +// ---------------------------------------------------------------------------- + +class sc_value_base +{ + friend class sc_concatref; + private: + virtual void concat_clear_data( bool to_ones=false ); + virtual bool concat_get_ctrl( sc_digit* dst_p, int low_i ) const; + virtual bool concat_get_data( sc_digit* dst_p, int low_i ) const; + virtual uint64 concat_get_uint64() const; + virtual int concat_length(bool* xz_present_p=0) const; + virtual void concat_set( int64 src, int low_i ); + virtual void concat_set( const sc_signed& src, int low_i ); + virtual void concat_set( const sc_unsigned& src, int low_i ); + virtual void concat_set( uint64 src, int low_i ); + public: + virtual ~sc_value_base() {} +}; + + +// ---------------------------------------------------------------------------- +// CLASS : sc_generic_base +// +// Proxy class for user-defined value classes and other classes that +// are defined outside of SystemC. +// The class is utilized as a base class for the arbitrary class: +// +// class my_class : public sc_generic_base<my_class> +// +// The purpose of the class is to allow to_XXXX methods defined within that +// class so that assignments and casts from the arbitrary class to native +// SystemC types are possible. To interact correctly with the SystemC library +// the class derived from sc_generic_base must implement the following +// methods: +// (1) uint64 to_uint64() const +// (2) int64 to_int64() const +// (3) void to_sc_unsigned( sc_unsigned& ) const +// (4) void to_sc_signed( sc_signed& ) const +// ---------------------------------------------------------------------------- +template< class T > +class sc_generic_base { + public: + inline const T* operator-> () const + { + return (const T*)this; + } + inline T* operator-> () + { + return (T*)this; + } +}; + +} // namespace sc_dt + +#endif |