sc_fxnum.h

来自「基于4个mips核的noc设计」· C头文件 代码 · 共 2,243 行 · 第 1/5 页

ostream&
operator << ( ostream& os, const sc_fxnum_fast_bitref& a )
{
    a.print( os );
    return os;
}

inline
istream&
operator >> ( istream& is, sc_fxnum_fast_bitref& a )
{
    a.scan( is );
    return is;
}


// ----------------------------------------------------------------------------
//  CLASS : sc_fxnum_subref
//
//  Proxy class for part-selection in class sc_fxnum,
//  behaves like sc_bv_base.
// ----------------------------------------------------------------------------

// constructor

inline
sc_fxnum_subref::sc_fxnum_subref( sc_fxnum& num_, int from_, int to_ )
    : m_num( num_ ), m_from( from_ ), m_to( to_ ),
      m_bv( *new sc_bv_base( sc_max( m_from, m_to ) -
			     sc_min( m_from, m_to ) + 1 ) )
{}


// copy constructor

inline
sc_fxnum_subref::sc_fxnum_subref( const sc_fxnum_subref& a )
    : m_num( a.m_num ), m_from( a.m_from ), m_to( a.m_to ),
      m_bv( *new sc_bv_base( a.m_bv ) )
{}


// destructor

inline
sc_fxnum_subref::~sc_fxnum_subref()
{
    delete &m_bv;
}


// assignment operators

inline
sc_fxnum_subref&
sc_fxnum_subref::operator = ( const sc_fxnum_subref& a )
{
    if( &a != this )
    {
	m_bv = static_cast<sc_bv_base>( a );
	set();
	SC_FXNUM_OBSERVER_WRITE_( m_num )
    }
    return *this;
}

inline
sc_fxnum_subref&
sc_fxnum_subref::operator = ( const sc_fxnum_fast_subref& a )
{
    m_bv = static_cast<sc_bv_base>( a );
    set();
    SC_FXNUM_OBSERVER_WRITE_( m_num )
    return *this;
}

#define DEFN_ASN_OP_T(tp)                                                     \
inline                                                                        \
sc_fxnum_subref&                                                              \
sc_fxnum_subref::operator = ( tp a )                                          \
{                                                                             \
    m_bv = a;                                                                 \
    set();                                                                    \
    SC_FXNUM_OBSERVER_WRITE_( m_num )                                         \
    return *this;                                                             \
}

DEFN_ASN_OP_T(const sc_bv_base&)
DEFN_ASN_OP_T(const sc_lv_base&)
DEFN_ASN_OP_T(const char*)
DEFN_ASN_OP_T(const bool*)
DEFN_ASN_OP_T(const sc_signed&)
DEFN_ASN_OP_T(const sc_unsigned&)
DEFN_ASN_OP_T(const sc_int_base&)
DEFN_ASN_OP_T(const sc_uint_base&)
DEFN_ASN_OP_T(int64)
DEFN_ASN_OP_T(uint64)
DEFN_ASN_OP_T(int)
DEFN_ASN_OP_T(unsigned int)
DEFN_ASN_OP_T(long)
DEFN_ASN_OP_T(unsigned long)
DEFN_ASN_OP_T(char)

#undef DEFN_ASN_OP_T


#define DEFN_ASN_OP_T(op,tp)                                                  \
inline                                                                        \
sc_fxnum_subref&                                                              \
sc_fxnum_subref::operator op ## = ( tp a )                                    \
{                                                                             \
    SC_FXNUM_OBSERVER_READ_( m_num )                                          \
    get();                                                                    \
    m_bv = m_bv op a;                                                         \
    set();                                                                    \
    SC_FXNUM_OBSERVER_WRITE_( m_num )                                         \
    return *this;                                                             \
}

#define DEFN_ASN_OP(op)                                                       \
inline                                                                        \
sc_fxnum_subref&                                                              \
sc_fxnum_subref::operator op ## = ( const sc_fxnum_subref& a )                \
{                                                                             \
    SC_FXNUM_OBSERVER_READ_( m_num )                                          \
    get();                                                                    \
    m_bv = m_bv op static_cast<sc_bv_base>( a );                              \
    set();                                                                    \
    SC_FXNUM_OBSERVER_WRITE_( m_num )                                         \
    return *this;                                                             \
}                                                                             \
                                                                              \
inline                                                                        \
sc_fxnum_subref&                                                              \
sc_fxnum_subref::operator op ## = ( const sc_fxnum_fast_subref& a )           \
{                                                                             \
    SC_FXNUM_OBSERVER_READ_( m_num )                                          \
    get();                                                                    \
    m_bv = m_bv op static_cast<sc_bv_base>( a );                              \
    set();                                                                    \
    SC_FXNUM_OBSERVER_WRITE_( m_num )                                         \
    return *this;                                                             \
}                                                                             \
                                                                              \
DEFN_ASN_OP_T(op,const sc_bv_base&)                                           \
DEFN_ASN_OP_T(op,const sc_lv_base&)

DEFN_ASN_OP(&)
DEFN_ASN_OP(|)
DEFN_ASN_OP(^)

#undef DEFN_ASN_OP_T
#undef DEFN_ASN_OP


// relational operators

#define DEFN_REL_OP_T(op,tp)                                                  \
inline                                                                        \
bool                                                                          \
operator op ( const sc_fxnum_subref& a, tp b )                                \
{                                                                             \
    return ( static_cast<sc_bv_base>( a ) op b );                             \
}                                                                             \
                                                                              \
inline                                                                        \
bool                                                                          \
operator op ( tp a, const sc_fxnum_subref& b )                                \
{                                                                             \
    return ( static_cast<sc_bv_base>( b ) op a );                             \
}

#define DEFN_REL_OP(op)                                                       \
inline                                                                        \
bool                                                                          \
operator op ( const sc_fxnum_subref& a, const sc_fxnum_subref& b )            \
{                                                                             \
    return ( static_cast<sc_bv_base>( a ) op static_cast<sc_bv_base>( b ) );  \
}                                                                             \
                                                                              \
inline                                                                        \
bool                                                                          \
operator op ( const sc_fxnum_subref& a, const sc_fxnum_fast_subref& b )       \
{                                                                             \
    return ( static_cast<sc_bv_base>( a ) op static_cast<sc_bv_base>( b ) );  \
}                                                                             \
                                                                              \
DEFN_REL_OP_T(op,const sc_bv_base&)                                           \
DEFN_REL_OP_T(op,const sc_lv_base&)                                           \
DEFN_REL_OP_T(op,const char*)                                                 \
DEFN_REL_OP_T(op,const bool*)                                                 \
DEFN_REL_OP_T(op,const sc_signed&)                                            \
DEFN_REL_OP_T(op,const sc_unsigned&)                                          \
DEFN_REL_OP_T(op,int)                                                         \
DEFN_REL_OP_T(op,unsigned int)                                                \
DEFN_REL_OP_T(op,long)                                                        \
DEFN_REL_OP_T(op,unsigned long)

DEFN_REL_OP(==)
DEFN_REL_OP(!=)

#undef DEFN_REL_OP_T
#undef DEFN_REL_OP


// reduce functions

#define DEFN_RED_FNC(fnc)                                                     \
inline                                                                        \
bool                                                                          \
sc_fxnum_subref::fnc() const                                                  \
{                                                                             \
    SC_FXNUM_OBSERVER_READ_( m_num )                                          \
    get();                                                                    \
    return static_cast<bool>( m_bv.fnc() );                                   \
}

DEFN_RED_FNC(and_reduce)
DEFN_RED_FNC(nand_reduce)
DEFN_RED_FNC(or_reduce)
DEFN_RED_FNC(nor_reduce)
DEFN_RED_FNC(xor_reduce)
DEFN_RED_FNC(xnor_reduce)

#undef DEFN_RED_FNC


// query parameter

inline
int
sc_fxnum_subref::length() const
{
    return m_bv.length();
}


// explicit conversions

inline
int
sc_fxnum_subref::to_int() const
{
    SC_FXNUM_OBSERVER_READ_( m_num )
    get();
    return m_bv.to_int();
}

inline
unsigned int
sc_fxnum_subref::to_uint() const
{
    SC_FXNUM_OBSERVER_READ_( m_num )
    get();
    return m_bv.to_uint();
}

inline
long
sc_fxnum_subref::to_long() const
{
    SC_FXNUM_OBSERVER_READ_( m_num )
    get();
    return m_bv.to_long();
}

inline
unsigned long
sc_fxnum_subref::to_ulong() const
{
    SC_FXNUM_OBSERVER_READ_( m_num )
    get();
    return m_bv.to_ulong();
}


#ifdef SC_DT_DEPRECATED

inline
int
sc_fxnum_subref::to_signed() const
{
    return to_int();
}

inline
unsigned int
sc_fxnum_subref::to_unsigned() const
{
    return to_uint();
}

#endif


inline
const sc_string
sc_fxnum_subref::to_string() const
{
    get();
    return m_bv.to_string();
}

inline
const sc_string
sc_fxnum_subref::to_string( sc_numrep numrep ) const
{
    get();
    return m_bv.to_string( numrep );
}

inline
const sc_string
sc_fxnum_subref::to_string( sc_numrep numrep, bool w_prefix ) const
{
    get();
    return m_bv.to_string( numrep, w_prefix );
}


// implicit conversion

inline
sc_fxnum_subref::operator sc_bv_base () const
{
    SC_FXNUM_OBSERVER_READ_( m_num )
    get();
    return m_bv;
}


inline
ostream&
operator << ( ostream& os, const sc_fxnum_subref& a )
{
    a.print( os );
    return os;
}

inline
istream&
operator >> ( istream& is, sc_fxnum_subref& a )
{
    a.scan( is );
    return is;
}


// ----------------------------------------------------------------------------
//  CLASS : sc_fxnum_fast_subref
//
//  Proxy class for part-selection in class sc_fxnum_fast,
//  behaves like sc_bv_base.
// ----------------------------------------------------------------------------

// constructor

inline
sc_fxnum_fast_subref::sc_fxnum_fast_subref( sc_fxnum_fast& num_,
					    int from_, int to_ )
    : m_num( num_ ), m_from( from_ ), m_to( to_ ),
      m_bv( *new sc_bv_base( sc_max( m_from, m_to ) -
			     sc_min( m_from, m_to ) + 1 ) )
{}


// copy constructor

inline
sc_fxnum_fast_subref::sc_fxnum_fast_subref( const sc_fxnum_fast_subref& a )
    : m_num( a.m_num ), m_from( a.m_from ), m_to( a.m_to ),
      m_bv( *new sc_bv_base( a.m_bv ) )
{}


// destructor

inline
sc_fxnum_fast_subref::~sc_fxnum_fast_subref()
{
    delete &m_bv;
}


// assignment operators

inline
sc_fxnum_fast_subref&
sc_fxnum_fast_subref::operator = ( const sc_fxnum_subref& a )
{
    m_bv = static_cast<sc_bv_base>( a );
    set();
    SC_FXNUM_FAST_OBSERVER_WRITE_( m_num )
    return *this;
}

inline
sc_fxnum_fast_subref&
sc_fxnum_fast_subref::operator = ( const sc_fxnum_fast_subref& a )
{
    if( &a != this )
    {
	m_bv = static_cast<sc_bv_base>( a );
	set();
	SC_FXNUM_FAST_OBSERVER_WRITE_( m_num )
    }
    return *this;
}

#define DEFN_ASN_OP_T(tp)                                                     \
inline                                                                        \
sc_fxnum_fast_subref&                                                         \
sc_fxnum_fast_subref::operator = ( tp a )                                     \
{                                                                             \
    m_bv = a;                                                                 \
    set();                                                                    \
    SC_FXNUM_FAST_OBSERVER_WRITE_( m_num )                                    \
    return *this;                                                             \
}

DEFN_ASN_OP_T(const sc_bv_base&)
DEFN_ASN_OP_T(const sc_lv_base&)
DEFN_ASN_OP_T(const char*)
DEFN_ASN_OP_T(const bool*)
DEFN_ASN_OP_T(const sc_signed&)
DEFN_ASN_OP_T(const sc_unsigned&)
DEFN_ASN_OP_T(const sc_int_base&)
DEFN_ASN_OP_T(const sc_uint_base&)
DEFN_ASN_OP_T(int64)
DEFN_ASN_OP_T(uint64)
DEFN_ASN_OP_T(int)
DEFN_ASN_OP_T(unsigned int)
DEFN_ASN_OP_T(long)
DEFN_ASN_OP_T(unsigned long)
DEFN_ASN_OP_T(char)

#undef DEFN_ASN_OP_T


#define DEFN_ASN_OP_T(op,tp)                                                  \
inline                                                                        \
sc_fxnum_fast_subref&                                                         \
sc_fxnum_fast_subref::operator op ## = ( tp a )                               \
{                                                                             \
    SC_FXNUM_FAST_OBSERVER_READ_( m_num )                                     \
    get();                                                                    \
    m_bv = m_bv op a;