sc_signed.h
来自「system C源码 一种替代verilog的语言」· C头文件 代码 · 共 1,617 行 · 第 1/5 页
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1,617 行
// Logical GREATER_THAN operators: bool operator > (const sc_unsigned& u, const sc_signed& v); bool operator > (const sc_signed& u, const sc_unsigned& v); bool operator > (const sc_signed& u, const sc_signed& v); bool operator > (const sc_signed& u, int64 v); bool operator > (const sc_signed& u, uint64 v); bool operator > (const sc_signed& u, long v); bool operator > (const sc_signed& u, unsigned long v); inline bool operator > (const sc_signed& u, int v); inline bool operator > (const sc_signed& u, unsigned int v); bool operator > (int64 u, const sc_signed& v); bool operator > (uint64 u, const sc_signed& v); bool operator > (long u, const sc_signed& v); bool operator > (unsigned long u, const sc_signed& v); inline bool operator > (int u, const sc_signed& v); inline bool operator > (unsigned int u, const sc_signed& v); bool operator > (const sc_signed& u, const sc_int_base& v); bool operator > (const sc_signed& u, const sc_uint_base& v); bool operator > (const sc_int_base& u, const sc_signed& v); bool operator > (const sc_uint_base& u, const sc_signed& v); // Logical GREATER_THAN_AND_EQUAL operators: bool operator >= (const sc_unsigned& u, const sc_signed& v); bool operator >= (const sc_signed& u, const sc_unsigned& v); bool operator >= (const sc_signed& u, const sc_signed& v); bool operator >= (const sc_signed& u, int64 v); bool operator >= (const sc_signed& u, uint64 v); bool operator >= (const sc_signed& u, long v); bool operator >= (const sc_signed& u, unsigned long v); inline bool operator >= (const sc_signed& u, int v); inline bool operator >= (const sc_signed& u, unsigned int v); bool operator >= (int64 u, const sc_signed& v); bool operator >= (uint64 u, const sc_signed& v); bool operator >= (long u, const sc_signed& v); bool operator >= (unsigned long u, const sc_signed& v); inline bool operator >= (int u, const sc_signed& v); inline bool operator >= (unsigned int u, const sc_signed& v); bool operator >= (const sc_signed& u, const sc_int_base& v); bool operator >= (const sc_signed& u, const sc_uint_base& v); bool operator >= (const sc_int_base& u, const sc_signed& v); bool operator >= (const sc_uint_base& u, const sc_signed& v); // Bitwise NOT operator (unary). sc_signed operator ~ (const sc_signed& u);// ----------------------------------------------------------------------------// CLASS : sc_signed_bitref_r//// Proxy class for sc_signed bit selection (r-value only).// ----------------------------------------------------------------------------class sc_signed_bitref_r : public sc_value_base{ friend class sc_signed;protected: // constructor sc_signed_bitref_r() {} void initialize( const sc_signed* obj_p, int index_ ) { m_index = index_; m_obj_p = ( CCAST<sc_signed*>( obj_p ) ); }public: // destructor virtual ~sc_signed_bitref_r() {} // copy constructor sc_signed_bitref_r( const sc_signed_bitref_r& a ) : m_index( a.m_index ), m_obj_p( a.m_obj_p ) {} // capacity int length() const { return 1; } // implicit conversion to bool operator uint64 () const; bool operator ! () const; bool operator ~ () const; // explicit conversions bool value() const { return operator uint64(); } bool to_bool() const { return operator uint64(); } // concatenation support virtual int concat_length(bool* xz_present_p) const { if ( xz_present_p ) *xz_present_p = false; return 1; } virtual uint64 concat_get_uint64() const { return (uint64)operator uint64(); } 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 { int bit_mask = 1 << (low_i % BITS_PER_DIGIT); bool result; // True if non-zero. int word_i = low_i / BITS_PER_DIGIT; if ( operator uint64() ) { dst_p[word_i] |= bit_mask; result = true; } else { dst_p[word_i] &= ~bit_mask; result = false; } return result; } // other methods void print( ::std::ostream& os = ::std::cout ) const { os << to_bool(); }protected: int m_index; // Bit to be selected. sc_signed* m_obj_p; // Target of this bit selection.private: // disabled const sc_signed_bitref_r& operator = ( const sc_signed_bitref_r& );};inline::std::ostream&operator << ( ::std::ostream&, const sc_signed_bitref_r& );// ----------------------------------------------------------------------------// CLASS : sc_signed_bitref//// Proxy class for sc_signed bit selection (r-value and l-value).// ----------------------------------------------------------------------------class sc_signed_bitref : public sc_signed_bitref_r{ friend class sc_signed; friend class sc_core::sc_vpool<sc_signed_bitref>; // constructorprotected: sc_signed_bitref() {}public: // copy constructor sc_signed_bitref( const sc_signed_bitref& a ) : sc_signed_bitref_r( a ) {} // assignment operators const sc_signed_bitref& operator = ( const sc_signed_bitref_r& ); const sc_signed_bitref& operator = ( const sc_signed_bitref& ); const sc_signed_bitref& operator = ( bool ); const sc_signed_bitref& operator &= ( bool ); const sc_signed_bitref& operator |= ( bool ); const sc_signed_bitref& operator ^= ( bool ); // 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 );protected: static sc_core::sc_vpool<sc_signed_bitref> m_pool;};inline::std::istream&operator >> ( ::std::istream&, sc_signed_bitref& );// ----------------------------------------------------------------------------// CLASS : sc_signed_subref_r//// Proxy class for sc_signed part selection (r-value only).// ----------------------------------------------------------------------------class sc_signed_subref_r : public sc_value_base{ friend class sc_signed; friend class sc_signed_signal; friend class sc_unsigned;protected: // constructor sc_signed_subref_r() {} void initialize( const sc_signed* obj_p, int left_, int right_ ) { m_obj_p = ( CCAST<sc_signed*>( obj_p )); m_left = left_; m_right = right_; }public: // destructor virtual ~sc_signed_subref_r() {} // copy constructor sc_signed_subref_r( const sc_signed_subref_r& a ) : m_left( a.m_left ), m_obj_p( a.m_obj_p ), m_right( a.m_right ) {} // capacity int length() const { return m_left >= m_right ? (m_left-m_right+1) : (m_right-m_left+1 ); } // implicit conversion to sc_unsigned operator sc_unsigned () const; // explicit conversions 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; // concatenation support virtual int concat_length(bool* xz_present_p) const { if ( xz_present_p ) *xz_present_p = false; return m_left - m_right + 1; } virtual uint64 concat_get_uint64() const; 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; // reduce methods bool and_reduce() const; bool nand_reduce() const; bool or_reduce() const; bool nor_reduce() const; bool xor_reduce() const ; bool xnor_reduce() 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; // Left-most bit in this part selection. sc_signed* m_obj_p; // Target of this part selection.⌨️ 快捷键说明
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