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Diffstat (limited to 'src/systemc/ext/dt/misc/sc_value_base.hh')
| -rw-r--r-- | src/systemc/ext/dt/misc/sc_value_base.hh | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/systemc/ext/dt/misc/sc_value_base.hh b/src/systemc/ext/dt/misc/sc_value_base.hh new file mode 100644 index 000000000..2ea6ce22e --- /dev/null +++ b/src/systemc/ext/dt/misc/sc_value_base.hh @@ -0,0 +1,123 @@ +/***************************************************************************** + + 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 __SYSTEMC_EXT_DT_MISC_SC_VALUE_BASE_HH__ +#define __SYSTEMC_EXT_DT_MISC_SC_VALUE_BASE_HH__ + +#include "../int/sc_nbdefs.hh" + +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 // SYSTEMC_EXT_DT_MISC_SC_VALUE_BASE_HH__ |