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Diffstat (limited to 'ext/systemc/src/sysc/datatypes/int/sc_int_base.h')
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1 files changed, 1382 insertions, 0 deletions
diff --git a/ext/systemc/src/sysc/datatypes/int/sc_int_base.h b/ext/systemc/src/sysc/datatypes/int/sc_int_base.h new file mode 100644 index 000000000..a9b8a6457 --- /dev/null +++ b/ext/systemc/src/sysc/datatypes/int/sc_int_base.h @@ -0,0 +1,1382 @@ +/***************************************************************************** + + 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_int_base.h -- A sc_int is a signed integer whose length is less than the + machine's native integer length. We provide two implementations + (i) sc_int with length between 1 - 64, and (ii) sc_int with + length between 1 - 32. Implementation (i) is the default + implementation, while implementation (ii) can be used only if + the class library is compiled with -D_32BIT_. Unlike arbitrary + precision, arithmetic and bitwise operations are performed + using the native types (hence capped at 32/64 bits). The sc_int + integer is useful when the user does not need arbitrary + precision and the performance is superior to + sc_bigint/sc_biguint. + + Original Author: Amit Rao, Synopsys, Inc. + + *****************************************************************************/ + +/***************************************************************************** + + MODIFICATION LOG - modifiers, enter your name, affiliation, date and + changes you are making here. + + Name, Affiliation, Date: Ali Dasdan, Synopsys, Inc. + Description of Modification: - Resolved ambiguity with sc_(un)signed. + - Merged the code for 64- and 32-bit versions + via the constants in sc_nbdefs.h. + - Eliminated redundant file inclusions. + + Name, Affiliation, Date: + Description of Modification: + + *****************************************************************************/ + +// $Log: sc_int_base.h,v $ +// Revision 1.3 2011/08/24 22:05:45 acg +// Torsten Maehne: initialization changes to remove warnings. +// +// Revision 1.2 2011/02/18 20:19:15 acg +// Andy Goodrich: updating Copyright notice. +// +// Revision 1.1.1.1 2006/12/15 20:20:05 acg +// SystemC 2.3 +// +// Revision 1.4 2006/05/08 17:50:01 acg +// Andy Goodrich: Added David Long's declarations for friend operators, +// functions, and methods, to keep the Microsoft compiler happy. +// +// Revision 1.3 2006/01/13 18:49:31 acg +// Added $Log command so that CVS check in comments are reproduced in the +// source. +// + +#ifndef SC_INT_BASE_H +#define SC_INT_BASE_H + +#include "sysc/kernel/sc_object.h" +#include "sysc/datatypes/misc/sc_value_base.h" +#include "sysc/datatypes/int/sc_int_ids.h" +#include "sysc/datatypes/int/sc_length_param.h" +#include "sysc/datatypes/int/sc_nbdefs.h" +#include "sysc/datatypes/int/sc_uint_base.h" +#include "sysc/utils/sc_iostream.h" +#include "sysc/utils/sc_temporary.h" + + +namespace sc_dt +{ + +class sc_concatref; + +// classes defined in this module +class sc_int_bitref_r; +class sc_int_bitref; +class sc_int_subref_r; +class sc_int_subref; +class sc_int_base; +class sc_signed_subref_r; +class sc_unsigned_subref_r; + +// forward class declarations +class sc_bv_base; +class sc_lv_base; +class sc_signed; +class sc_unsigned; +class sc_fxval; +class sc_fxval_fast; +class sc_fxnum; +class sc_fxnum_fast; + + +extern const uint_type mask_int[SC_INTWIDTH][SC_INTWIDTH]; + +// friend operator declarations + // relational operators + + inline bool operator == ( const sc_int_base& a, const sc_int_base& b ); + + inline bool operator != ( const sc_int_base& a, const sc_int_base& b ); + + inline bool operator < ( const sc_int_base& a, const sc_int_base& b ); + + inline bool operator <= ( const sc_int_base& a, const sc_int_base& b ); + + inline bool operator > ( const sc_int_base& a, const sc_int_base& b ); + + inline bool operator >= ( const sc_int_base& a, const sc_int_base& b ); + + +// ---------------------------------------------------------------------------- +// CLASS : sc_int_bitref_r +// +// Proxy class for sc_int bit selection (r-value only). +// ---------------------------------------------------------------------------- + +class sc_int_bitref_r : public sc_value_base +{ + friend class sc_int_base; + +protected: + + // constructor + + sc_int_bitref_r() : sc_value_base(), m_index(), m_obj_p() + {} + + // initializer for sc_core::sc_vpool: + + void initialize( const sc_int_base* obj_p, int index_ ) + { + m_obj_p = (sc_int_base*)obj_p; + m_index = index_; + } + +public: + + // copy constructor + + sc_int_bitref_r( const sc_int_bitref_r& a ) : + sc_value_base(a), m_index(a.m_index), m_obj_p(a.m_obj_p) + {} + + // destructor + + virtual ~sc_int_bitref_r() + {} + + // capacity + + int length() const + { return 1; } + +#ifdef SC_DT_DEPRECATED + int bitwidth() const + { return length(); } +#endif + + // concatenation support + + virtual int concat_length( bool *xz_present_p ) const + { if (xz_present_p) *xz_present_p = false; return 1; } + virtual bool concat_get_ctrl( sc_digit* dst_p, int low_i ) const + { + int bit_mask = 1 << (low_i % BITS_PER_DIGIT); + int word_i = low_i / BITS_PER_DIGIT; + + dst_p[word_i] &= ~bit_mask; + return false; + } + virtual bool concat_get_data( sc_digit* dst_p, int low_i ) const + { + bool non_zero; + int bit_mask = 1 << (low_i % BITS_PER_DIGIT); + int word_i = low_i / BITS_PER_DIGIT; + + if ( operator uint64() ) + { + dst_p[word_i] |= bit_mask; + non_zero = true; + } + else + { + dst_p[word_i] &= ~bit_mask; + non_zero = false; + } + return non_zero; + } + virtual uint64 concat_get_uint64() const + { return operator uint64(); } + + + + + // implicit conversions + + operator uint64 () const; + bool operator ! () const; + bool operator ~ () const; + + + // explicit conversions + + uint64 value() const + { return operator uint64(); } + + bool to_bool() const + { return operator uint64(); } + + + // other methods + + void print( ::std::ostream& os = ::std::cout ) const + { os << to_bool(); } + +protected: + int m_index; + sc_int_base* m_obj_p; + +private: + + // disabled + sc_int_bitref_r& operator = ( const sc_int_bitref_r& ); +}; + + +inline +::std::ostream& +operator << ( ::std::ostream&, const sc_int_bitref_r& ); + + +// ---------------------------------------------------------------------------- +// CLASS : sc_int_bitref +// +// Proxy class for sc_int bit selection (r-value and l-value). +// ---------------------------------------------------------------------------- + +class sc_int_bitref + : public sc_int_bitref_r +{ + friend class sc_int_base; + friend class sc_core::sc_vpool<sc_int_bitref>; + + + // constructor + + sc_int_bitref() : sc_int_bitref_r() + {} + + +public: + + // copy constructor + + sc_int_bitref( const sc_int_bitref& a ) : sc_int_bitref_r( a ) + {} + + // assignment operators + + sc_int_bitref& operator = ( const sc_int_bitref_r& b ); + sc_int_bitref& operator = ( const sc_int_bitref& b ); + sc_int_bitref& operator = ( bool b ); + + sc_int_bitref& operator &= ( bool b ); + sc_int_bitref& operator |= ( bool b ); + sc_int_bitref& operator ^= ( bool b ); + + // concatenation methods + + 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); + + + // other methods + + void scan( ::std::istream& is = ::std::cin ); + +public: + static sc_core::sc_vpool<sc_int_bitref> m_pool; + +}; + + + +inline +::std::istream& +operator >> ( ::std::istream&, sc_int_bitref& ); + + +// ---------------------------------------------------------------------------- +// CLASS : sc_int_subref_r +// +// Proxy class for sc_int part selection (r-value only). +// ---------------------------------------------------------------------------- + +class sc_int_subref_r : public sc_value_base +{ + friend class sc_int_base; + friend class sc_int_signal; + friend class sc_int_subref; + +protected: + + // constructor + + sc_int_subref_r() : sc_value_base(), m_left(0), m_obj_p(0), m_right(0) + {} + + // initializer for sc_core::sc_vpool: + + void initialize( const sc_int_base* obj_p, int left_i, int right_i ) + { + m_obj_p = (sc_int_base*)obj_p; + m_left = left_i; + m_right = right_i; + } + + +public: + // copy constructor + + sc_int_subref_r( const sc_int_subref_r& a ) : + sc_value_base(a), m_left( a.m_left ), m_obj_p( a.m_obj_p ), + m_right( a.m_right ) + {} + + // destructor + + virtual ~sc_int_subref_r() + {} + + // capacity + + int length() const + { return ( m_left - m_right + 1 ); } + +#ifdef SC_DT_DEPRECATED + int bitwidth() const + { return length(); } +#endif + + // concatenation support + + virtual int concat_length(bool* xz_present_p) const + { if ( xz_present_p ) *xz_present_p = false; return length(); } + 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 + { + int len = length(); + uint64 val = operator uint_type(); + if ( len < 64 ) + return (uint64)(val & ~((uint_type)-1 << len)); + else + return (uint64)val; + } + + // reduce methods + + bool and_reduce() const; + + bool nand_reduce() const + { return ( ! and_reduce() ); } + + bool or_reduce() const; + + bool nor_reduce() const + { return ( ! or_reduce() ); } + + bool xor_reduce() const; + + bool xnor_reduce() const + { return ( ! xor_reduce() ); } + + + // implicit conversion to uint_type + + operator uint_type () const; + + + // explicit conversions + + uint_type value() const + { return operator uint_type(); } + + + int to_int() const; + unsigned int to_uint() const; + long to_long() const; + unsigned long to_ulong() const; + int64 to_int64() const; + uint64 to_uint64() const; + double to_double() const; + + + // explicit conversion to character string + + const std::string to_string( sc_numrep numrep = SC_DEC ) const; + const std::string to_string( sc_numrep numrep, bool w_prefix ) const; + + + // other methods + + void print( ::std::ostream& os = ::std::cout ) const + { os << to_string(sc_io_base(os,SC_DEC),sc_io_show_base(os)); } + +protected: + + int m_left; + sc_int_base* m_obj_p; + int m_right; + +private: + const sc_int_subref_r& operator = ( const sc_int_subref_r& ); +}; + + + +inline +::std::ostream& +operator << ( ::std::ostream&, const sc_int_subref_r& ); + + +// ---------------------------------------------------------------------------- +// CLASS : sc_int_subref +// +// Proxy class for sc_int part selection (r-value and l-value). +// ---------------------------------------------------------------------------- + +class sc_int_subref + : public sc_int_subref_r +{ + friend class sc_int_base; + friend class sc_core::sc_vpool<sc_int_subref>; + + +protected: + + // constructor + sc_int_subref() : sc_int_subref_r() + {} + +public: + + // copy constructor + + sc_int_subref( const sc_int_subref& a ) : sc_int_subref_r( a ) + {} + + // assignment operators + + sc_int_subref& operator = ( int_type v ); + sc_int_subref& operator = ( const sc_int_base& a ); + + sc_int_subref& operator = ( const sc_int_subref_r& a ) + { return operator = ( a.operator uint_type() ); } + + sc_int_subref& operator = ( const sc_int_subref& a ) + { return operator = ( a.operator uint_type() ); } + + template< class T > + sc_int_subref& operator = ( const sc_generic_base<T>& a ) + { return operator = ( a->to_int64() ); } + + sc_int_subref& operator = ( const char* a ); + + sc_int_subref& operator = ( unsigned long a ) + { return operator = ( (int_type) a ); } + + sc_int_subref& operator = ( long a ) + { return operator = ( (int_type) a ); } + + sc_int_subref& operator = ( unsigned int a ) + { return operator = ( (int_type) a ); } + + sc_int_subref& operator = ( int a ) + { return operator = ( (int_type) a ); } + + sc_int_subref& operator = ( uint64 a ) + { return operator = ( (int_type) a ); } + + sc_int_subref& operator = ( double a ) + { return operator = ( (int_type) a ); } + + sc_int_subref& operator = ( const sc_signed& ); + sc_int_subref& operator = ( const sc_unsigned& ); + sc_int_subref& operator = ( const sc_bv_base& ); + sc_int_subref& operator = ( const sc_lv_base& ); + + // concatenation methods + + 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); + + // other methods + + void scan( ::std::istream& is = ::std::cin ); + +public: + static sc_core::sc_vpool<sc_int_subref> m_pool; + +}; + + + +inline +::std::istream& +operator >> ( ::std::istream&, sc_int_subref& ); + + +// ---------------------------------------------------------------------------- +// CLASS : sc_int_base +// +// Base class for sc_int. +// ---------------------------------------------------------------------------- + +class sc_int_base : public sc_value_base +{ + friend class sc_int_bitref_r; + friend class sc_int_bitref; + friend class sc_int_subref_r; + friend class sc_int_subref; + + + // support methods + + void invalid_length() const; + void invalid_index( int i ) const; + void invalid_range( int l, int r ) const; + + void check_length() const + { if( m_len <= 0 || m_len > SC_INTWIDTH ) { invalid_length(); } } + + void check_index( int i ) const + { if( i < 0 || i >= m_len ) { invalid_index( i ); } } + + void check_range( int l, int r ) const + { if( r < 0 || l >= m_len || l < r ) { invalid_range( l, r ); } } + + void check_value() const; + + void extend_sign() + { +#ifdef DEBUG_SYSTEMC + check_value(); +#endif + m_val = ( m_val << m_ulen >> m_ulen ); + } + +public: + + // constructors + + explicit sc_int_base( int w = sc_length_param().len() ) + : m_val( 0 ), m_len( w ), m_ulen( SC_INTWIDTH - m_len ) + { check_length(); } + + sc_int_base( int_type v, int w ) + : m_val( v ), m_len( w ), m_ulen( SC_INTWIDTH - m_len ) + { check_length(); extend_sign(); } + + sc_int_base( const sc_int_base& a ) + : sc_value_base(a), m_val( a.m_val ), m_len( a.m_len ), + m_ulen( a.m_ulen ) + {} + + explicit sc_int_base( const sc_int_subref_r& a ) + : m_val( a ), m_len( a.length() ), m_ulen( SC_INTWIDTH - m_len ) + { extend_sign(); } + + template< class T > + explicit sc_int_base( const sc_generic_base<T>& a ) : + m_val( a->to_int64() ), m_len( a->length() ), + m_ulen( SC_INTWIDTH - m_len ) + { check_length(); extend_sign(); } + + explicit sc_int_base( const sc_signed& a ); + explicit sc_int_base( const sc_unsigned& a ); + explicit sc_int_base( const sc_bv_base& v ); + explicit sc_int_base( const sc_lv_base& v ); + explicit sc_int_base( const sc_uint_subref_r& v ); + explicit sc_int_base( const sc_signed_subref_r& v ); + explicit sc_int_base( const sc_unsigned_subref_r& v ); + + + + // destructor + + virtual ~sc_int_base() + {} + + // assignment operators + + sc_int_base& operator = ( int_type v ) + { m_val = v; extend_sign(); return *this; } + + sc_int_base& operator = ( const sc_int_base& a ) + { m_val = a.m_val; extend_sign(); return *this; } + + sc_int_base& operator = ( const sc_int_subref_r& a ) + { m_val = a; extend_sign(); return *this; } + + template<class T> + sc_int_base& operator = ( const sc_generic_base<T>& a ) + { m_val = a->to_int64(); extend_sign(); return *this; } + + sc_int_base& operator = ( const sc_signed& a ); + sc_int_base& operator = ( const sc_unsigned& a ); + +#ifdef SC_INCLUDE_FX + sc_int_base& operator = ( const sc_fxval& a ); + sc_int_base& operator = ( const sc_fxval_fast& a ); + sc_int_base& operator = ( const sc_fxnum& a ); + sc_int_base& operator = ( const sc_fxnum_fast& a ); +#endif + + sc_int_base& operator = ( const sc_bv_base& a ); + sc_int_base& operator = ( const sc_lv_base& a ); + + sc_int_base& operator = ( const char* a ); + + sc_int_base& operator = ( unsigned long a ) + { m_val = a; extend_sign(); return *this; } + + sc_int_base& operator = ( long a ) + { m_val = a; extend_sign(); return *this; } + + sc_int_base& operator = ( unsigned int a ) + { m_val = a; extend_sign(); return *this; } + + sc_int_base& operator = ( int a ) + { m_val = a; extend_sign(); return *this; } + + sc_int_base& operator = ( uint64 a ) + { m_val = a; extend_sign(); return *this; } + + sc_int_base& operator = ( double a ) + { m_val = (int_type) a; extend_sign(); return *this; } + + + // arithmetic assignment operators + + sc_int_base& operator += ( int_type v ) + { m_val += v; extend_sign(); return *this; } + + sc_int_base& operator -= ( int_type v ) + { m_val -= v; extend_sign(); return *this; } + + sc_int_base& operator *= ( int_type v ) + { m_val *= v; extend_sign(); return *this; } + + sc_int_base& operator /= ( int_type v ) + { m_val /= v; extend_sign(); return *this; } + + sc_int_base& operator %= ( int_type v ) + { m_val %= v; extend_sign(); return *this; } + + + // bitwise assignment operators + + sc_int_base& operator &= ( int_type v ) + { m_val &= v; extend_sign(); return *this; } + + sc_int_base& operator |= ( int_type v ) + { m_val |= v; extend_sign(); return *this; } + + sc_int_base& operator ^= ( int_type v ) + { m_val ^= v; extend_sign(); return *this; } + + + sc_int_base& operator <<= ( int_type v ) + { m_val <<= v; extend_sign(); return *this; } + + sc_int_base& operator >>= ( int_type v ) + { m_val >>= v; /* no sign extension needed */ return *this; } + + + // prefix and postfix increment and decrement operators + + sc_int_base& operator ++ () // prefix + { ++ m_val; extend_sign(); return *this; } + + const sc_int_base operator ++ ( int ) // postfix + { sc_int_base tmp( *this ); ++ m_val; extend_sign(); return tmp; } + + sc_int_base& operator -- () // prefix + { -- m_val; extend_sign(); return *this; } + + const sc_int_base operator -- ( int ) // postfix + { sc_int_base tmp( *this ); -- m_val; extend_sign(); return tmp; } + + + // relational operators + + friend bool operator == ( const sc_int_base& a, const sc_int_base& b ) + { return a.m_val == b.m_val; } + + friend bool operator != ( const sc_int_base& a, const sc_int_base& b ) + { return a.m_val != b.m_val; } + + friend bool operator < ( const sc_int_base& a, const sc_int_base& b ) + { return a.m_val < b.m_val; } + + friend bool operator <= ( const sc_int_base& a, const sc_int_base& b ) + { return a.m_val <= b.m_val; } + + friend bool operator > ( const sc_int_base& a, const sc_int_base& b ) + { return a.m_val > b.m_val; } + + friend bool operator >= ( const sc_int_base& a, const sc_int_base& b ) + { return a.m_val >= b.m_val; } + + + // bit selection + + sc_int_bitref& operator [] ( int i ); + const sc_int_bitref_r& operator [] ( int i ) const; + + sc_int_bitref& bit( int i ); + const sc_int_bitref_r& bit( int i ) const; + + + // part selection + + sc_int_subref& operator () ( int left, int right ); + const sc_int_subref_r& operator () ( int left, int right ) const; + + sc_int_subref& range( int left, int right ); + const sc_int_subref_r& range( int left, int right ) const; + + + // bit access, without bounds checking or sign extension + + bool test( int i ) const + { return ( 0 != (m_val & (UINT_ONE << i)) ); } + + void set( int i ) + { m_val |= (UINT_ONE << i); } + + void set( int i, bool v ) + { v ? m_val |= (UINT_ONE << i) : m_val &= ~(UINT_ONE << i); } + + + // capacity + + int length() const + { return m_len; } + +#ifdef SC_DT_DEPRECATED + int bitwidth() const + { return length(); } +#endif + + // concatenation support + + virtual int concat_length(bool* xz_present_p) const + { if ( xz_present_p ) *xz_present_p = false; return length(); } + 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 + { + if ( m_len < 64 ) + return (uint64)(m_val & ~((uint_type)-1 << m_len)); + else + return (uint64)m_val; + } + 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); + + + // reduce methods + + bool and_reduce() const; + + bool nand_reduce() const + { return ( ! and_reduce() ); } + + bool or_reduce() const; + + bool nor_reduce() const + { return ( ! or_reduce() ); } + + bool xor_reduce() const; + + bool xnor_reduce() const + { return ( ! xor_reduce() ); } + + + // implicit conversion to int_type + + operator int_type() const + { return m_val; } + + + // explicit conversions + + int_type value() const + { return operator int_type(); } + + + int to_int() const + { return (int) m_val; } + + unsigned int to_uint() const + { return (unsigned int) m_val; } + + long to_long() const + { return (long) m_val; } + + unsigned long to_ulong() const + { return (unsigned long) m_val; } + + int64 to_int64() const + { return (int64) m_val; } + + uint64 to_uint64() const + { return (uint64) m_val; } + + double to_double() const + { return (double) m_val; } + + +#ifndef _32BIT_ + long long_low() const + { return (long) (m_val & UINT64_32ONES); } + + long long_high() const + { return (long) ((m_val >> 32) & UINT64_32ONES); } +#endif + + + // explicit conversion to character string + + const std::string to_string( sc_numrep numrep = SC_DEC ) const; + const std::string to_string( sc_numrep numrep, bool w_prefix ) const; + + + // other methods + + void print( ::std::ostream& os = ::std::cout ) const + { os << to_string(sc_io_base(os,SC_DEC),sc_io_show_base(os)); } + + void scan( ::std::istream& is = ::std::cin ); + +protected: + + int_type m_val; // value + int m_len; // length + int m_ulen; // unused length +}; + + + +inline +::std::ostream& +operator << ( ::std::ostream&, const sc_int_base& ); + +inline +::std::istream& +operator >> ( ::std::istream&, sc_int_base& ); + + + +// ---------------------------------------------------------------------------- +// CLASS : sc_int_bitref_r +// +// Proxy class for sc_int bit selection (r-value only). +// ---------------------------------------------------------------------------- + +// implicit conversion to uint64 + +inline +sc_int_bitref_r::operator uint64 () const +{ + return m_obj_p->test( m_index ); +} + +inline +bool +sc_int_bitref_r::operator ! () const +{ + return ! m_obj_p->test( m_index ); +} + +inline +bool +sc_int_bitref_r::operator ~ () const +{ + return ! m_obj_p->test( m_index ); +} + + + +inline +::std::ostream& +operator << ( ::std::ostream& os, const sc_int_bitref_r& a ) +{ + a.print( os ); + return os; +} + + +// ---------------------------------------------------------------------------- +// CLASS : sc_int_bitref +// +// Proxy class for sc_int bit selection (r-value and l-value). +// ---------------------------------------------------------------------------- + +// assignment operators + +inline +sc_int_bitref& +sc_int_bitref::operator = ( const sc_int_bitref_r& b ) +{ + m_obj_p->set( m_index, (bool) b ); + m_obj_p->extend_sign(); + return *this; +} + +inline +sc_int_bitref& +sc_int_bitref::operator = ( const sc_int_bitref& b ) +{ + m_obj_p->set( m_index, (bool) b ); + m_obj_p->extend_sign(); + return *this; +} + +inline +sc_int_bitref& +sc_int_bitref::operator = ( bool b ) +{ + m_obj_p->set( m_index, b ); + m_obj_p->extend_sign(); + return *this; +} + + +inline +sc_int_bitref& +sc_int_bitref::operator &= ( bool b ) +{ + if( ! b ) { + m_obj_p->set( m_index, b ); + m_obj_p->extend_sign(); + } + return *this; +} + +inline +sc_int_bitref& +sc_int_bitref::operator |= ( bool b ) +{ + if( b ) { + m_obj_p->set( m_index, b ); + m_obj_p->extend_sign(); + } + return *this; +} + +inline +sc_int_bitref& +sc_int_bitref::operator ^= ( bool b ) +{ + if( b ) { + m_obj_p->m_val ^= (UINT_ONE << m_index); + m_obj_p->extend_sign(); + } + return *this; +} + + + +inline +::std::istream& +operator >> ( ::std::istream& is, sc_int_bitref& a ) +{ + a.scan( is ); + return is; +} + + +// ---------------------------------------------------------------------------- +// CLASS : sc_int_subref_r +// +// Proxy class for sc_int part selection (r-value only). +// ---------------------------------------------------------------------------- + +// implicit conversion to int_type + +inline +sc_int_subref_r::operator uint_type() const +{ + uint_type /*int_type*/ val = m_obj_p->m_val; + int uleft = SC_INTWIDTH - (m_left + 1); + int uright = uleft + m_right; + return ( val << uleft >> uright ); +} + + +// reduce methods + +inline +bool +sc_int_subref_r::and_reduce() const +{ + sc_int_base a( *this ); + return a.and_reduce(); +} + +inline +bool +sc_int_subref_r::or_reduce() const +{ + sc_int_base a( *this ); + return a.or_reduce(); +} + +inline +bool +sc_int_subref_r::xor_reduce() const +{ + sc_int_base a( *this ); + return a.xor_reduce(); +} + + +// explicit conversions + +inline +int +sc_int_subref_r::to_int() const +{ + int result = static_cast<int>(operator uint_type()); + return result; +} + +inline +unsigned int +sc_int_subref_r::to_uint() const +{ + unsigned int result = static_cast<unsigned int>(operator uint_type()); + return result; +} + +inline +long +sc_int_subref_r::to_long() const +{ + long result = static_cast<long>(operator uint_type()); + return result; +} + +inline +unsigned long +sc_int_subref_r::to_ulong() const +{ + unsigned long result = static_cast<unsigned long>(operator uint_type()); + return result; +} + +inline +int64 +sc_int_subref_r::to_int64() const +{ + int64 result = operator uint_type(); + return result; +} + +inline +uint64 +sc_int_subref_r::to_uint64() const +{ + uint64 result = operator uint_type(); + return result; +} + +inline +double +sc_int_subref_r::to_double() const +{ + double result = static_cast<double>(operator uint_type()); + return result; +} + + +// explicit conversion to character string + +inline +const std::string +sc_int_subref_r::to_string( sc_numrep numrep ) const +{ + sc_uint_base a(length()); + a = operator uint_type(); + return a.to_string( numrep ); +} + +inline +const std::string +sc_int_subref_r::to_string( sc_numrep numrep, bool w_prefix ) const +{ + sc_uint_base a(length()); + a = operator uint_type(); + return a.to_string( numrep, w_prefix ); +} + + +// functional notation for the reduce methods + +inline +bool +and_reduce( const sc_int_subref_r& a ) +{ + return a.and_reduce(); +} + +inline +bool +nand_reduce( const sc_int_subref_r& a ) +{ + return a.nand_reduce(); +} + +inline +bool +or_reduce( const sc_int_subref_r& a ) +{ + return a.or_reduce(); +} + +inline +bool +nor_reduce( const sc_int_subref_r& a ) +{ + return a.nor_reduce(); +} + +inline +bool +xor_reduce( const sc_int_subref_r& a ) +{ + return a.xor_reduce(); +} + +inline +bool +xnor_reduce( const sc_int_subref_r& a ) +{ + return a.xnor_reduce(); +} + + + +inline +::std::ostream& +operator << ( ::std::ostream& os, const sc_int_subref_r& a ) +{ + a.print( os ); + return os; +} + + +// ---------------------------------------------------------------------------- +// CLASS : sc_int_subref +// +// Proxy class for sc_int part selection (r-value and l-value). +// ---------------------------------------------------------------------------- + +// assignment operators + +inline +sc_int_subref& +sc_int_subref::operator = ( const sc_int_base& a ) +{ + return operator = ( a.operator int_type() ); +} + +inline +sc_int_subref& +sc_int_subref::operator = ( const char* a ) +{ + sc_int_base aa( length() ); + return ( *this = aa = a ); +} + + + +inline +::std::istream& +operator >> ( ::std::istream& is, sc_int_subref& a ) +{ + a.scan( is ); + return is; +} + + +// ---------------------------------------------------------------------------- +// CLASS : sc_int_base +// +// Base class for sc_int. +// ---------------------------------------------------------------------------- + +// bit selection + +inline +sc_int_bitref& +sc_int_base::operator [] ( int i ) +{ + check_index( i ); + sc_int_bitref* result_p = sc_int_bitref::m_pool.allocate(); + result_p->initialize(this, i); + return *result_p; +} + +inline +const sc_int_bitref_r& +sc_int_base::operator [] ( int i ) const +{ + check_index( i ); + sc_int_bitref* result_p = sc_int_bitref::m_pool.allocate(); + result_p->initialize(this, i); + return *result_p; +} + + +inline +sc_int_bitref& +sc_int_base::bit( int i ) +{ + check_index( i ); + sc_int_bitref* result_p = sc_int_bitref::m_pool.allocate(); + result_p->initialize(this, i); + return *result_p; +} + +inline +const sc_int_bitref_r& +sc_int_base::bit( int i ) const +{ + check_index( i ); + sc_int_bitref* result_p = sc_int_bitref::m_pool.allocate(); + result_p->initialize(this, i); + return *result_p; +} + + +// part selection + +inline +sc_int_subref& +sc_int_base::operator () ( int left, int right ) +{ + check_range( left, right ); + sc_int_subref* result_p = sc_int_subref::m_pool.allocate(); + result_p->initialize(this, left, right); + return *result_p; +} + +inline +const sc_int_subref_r& +sc_int_base::operator () ( int left, int right ) const +{ + check_range( left, right ); + sc_int_subref* result_p = sc_int_subref::m_pool.allocate(); + result_p->initialize(this, left, right); + return *result_p; +} + + +inline +sc_int_subref& +sc_int_base::range( int left, int right ) +{ + check_range( left, right ); + sc_int_subref* result_p = sc_int_subref::m_pool.allocate(); + result_p->initialize(this, left, right); + return *result_p; +} + +inline +const sc_int_subref_r& +sc_int_base::range( int left, int right ) const +{ + check_range( left, right ); + sc_int_subref* result_p = sc_int_subref::m_pool.allocate(); + result_p->initialize(this, left, right); + return *result_p; +} + + +// functional notation for the reduce methods + +inline +bool +and_reduce( const sc_int_base& a ) +{ + return a.and_reduce(); +} + +inline +bool +nand_reduce( const sc_int_base& a ) +{ + return a.nand_reduce(); +} + +inline +bool +or_reduce( const sc_int_base& a ) +{ + return a.or_reduce(); +} + +inline +bool +nor_reduce( const sc_int_base& a ) +{ + return a.nor_reduce(); +} + +inline +bool +xor_reduce( const sc_int_base& a ) +{ + return a.xor_reduce(); +} + +inline +bool +xnor_reduce( const sc_int_base& a ) +{ + return a.xnor_reduce(); +} + + + +inline +::std::ostream& +operator << ( ::std::ostream& os, const sc_int_base& a ) +{ + a.print( os ); + return os; +} + +inline +::std::istream& +operator >> ( ::std::istream& is, sc_int_base& a ) +{ + a.scan( is ); + return is; +} + +} // namespace sc_dt + + +#endif + +// Taf! |