sc_indexed_port_impl.h

system c 是在C环境下的硬件描述语言,比VHDL 等语言具有更强的抽象能力,内有system C的开发支持库和一些VC下的开发例程

/*****************************************************************************

  The following code is derived, directly or indirectly, from the SystemC
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  All Rights reserved.

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  set forth in the SystemC Open Source License Version 2.2 (the "License");
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/*****************************************************************************

  sc_indexed_port_if.h -- interface for indexed master/slave ports.

  Original Author: Dirk Vermeersch, Coware, Inc.
                   Vijay Kumar, Coware, Inc.

 *****************************************************************************/

/*****************************************************************************

  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
  changes you are making here.

      Name, Affiliation, Date:
  Description of Modification:

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#ifndef SC_INDEXED_PORT_IF_H
#define SC_INDEXED_PORT_IF_H
  
#include "systemc/utils/sc_report.h"
#include "sc_ms/sc_ms_ids.h"
#include "sc_ms/sc_abstract_port_impl.h"
#include "sc_ms/sc_indexed_if.h"

// forward declarations
template<class T, uint64> class sc_indexed_master_port_impl;
template<class T, uint64> class sc_indexed_inmaster_port_impl;
template<class T, uint64> class sc_indexed_outmaster_port_impl;
template<class T, uint64> class sc_indexed_inoutmaster_port_impl;

template<class T, uint64> class sc_indexed_slave_port_impl;
template<class T, uint64> class sc_indexed_inslave_port_impl;
template<class T, uint64> class sc_indexed_outslave_port_impl;
template<class T, uint64> class sc_indexed_inoutslave_port_impl;

//---------------------------------------------------------------------
// common base for all indexed master ports
template<uint64 N >
class sc_indexed_master_base : public virtual sc_abstract_master_base
{
public:
  const char*	port_typename( ) { return "sc_indexed_master_slave"; }
  virtual uint64 get_address( ) = 0;
  virtual void set_address( uint64 i ) = 0;

protected:
  virtual const char* get_name( ) = 0;
  void check_address( uint64 i ) {
    if ( i >= N ) {
      char msg[BUFSIZ];
      sprintf( msg, "`%s\'", get_name( ) );
      SC_REPORT_WARNING(SC_ID_MS_INDEX_OUT_OF_RANGE_, msg );
    }
  }

};

//---------------------------------------------------------------------
// common base for all indexed slave ports
template<uint64 N>
class sc_indexed_slave_base : public virtual sc_abstract_slave_base
{
public:
  virtual ~sc_indexed_slave_base( ) { }
  uint64 get_address( ) { 
    return get_ms_interface( )->get_address( );
  }
  const char*	port_typename( ) { return "sc_indexed_master_slave"; }
protected:
  virtual const char* get_name( ) = 0;
  void check_address( uint64 i ) {
    if ( i >= N ) {
      char msg[BUFSIZ];
      sprintf( msg, "index out of range: port `%s\'", get_name( ) );
      SC_REPORT_WARNING(SC_ID_MS_INDEX_OUT_OF_RANGE_, msg );
    }
  }

};

////////////////////////////////////////////////////////////////////
// master port interface
//------------------------------------------------------------------
template<class T, uint64 N> 
class sc_indexed_master_port_impl 
: public virtual sc_indexed_master_base<N>,
  public virtual sc_port< sc_indexed_master_if<T> > 
{
public:
  typedef sc_indexed_master_base<N> base_type;
  typedef sc_indexed_master_port_impl<T,N>	this_type;
  typedef sc_indexed_master_if<T> if_type;

  void bind( if_type& link ) {
    sc_port_base::bind( static_cast<sc_interface&>( link ) );
  }
  void bind( this_type& other ) {
    sc_port_base::bind( static_cast<sc_port_base&>( other ) );
  }
  void operator( ) ( if_type& link )		{ return bind( link); }
  void operator( ) ( this_type& other )		{ return bind( other); }
  
  // run the slaves
  void operator ( ) ( ) { 
    get_ms_interface( )->operator( ) ( ); 
  }

  this_type& operator [ ] (uint64 i ) {  // used by indexed ports
    set_address( i );
    return *this;
  }

public:
  uint64 get_address( ) { 
    return get_ms_interface( )->get_address( );
  }
  virtual void set_address( uint64 i ) {
    check_address( i );
    get_ms_interface( )->set_address( i );
  }

public:
  if_type* get_ms_interface( ) {
    return (*this).operator -> ( );
  }

protected:
  virtual const char* get_name( ) {
    return name( );
  }
};


//------------------------------------------------------------------
template<class T, uint64 N> 
class sc_indexed_inmaster_port_impl 
: public virtual sc_indexed_master_base<N>,
  public virtual sc_master_slave_read_if< T >,
  public virtual sc_port< sc_indexed_inmaster_if<T> >
{
public:
  typedef sc_indexed_master_base<N > base_type;
  typedef sc_indexed_inmaster_port_impl<T,N>		this_type;
  typedef sc_indexed_inmaster_if<T> if_type;
  
  void bind( if_type& link ) {
    sc_port_base::bind( static_cast<sc_interface&>( link ) );
  }
  void bind( this_type& other ) {
    sc_port_base::bind( static_cast<sc_port_base&>( other ) );
  }
  virtual void bind( sc_indexed_inoutmaster_port_impl<T,N>& other) {
    sc_port_base::bind( static_cast<sc_port_base&>( other ) );
  }
  
  void operator( ) ( if_type& link )		{ bind( link); }
  void operator( ) ( this_type& other )		{ bind( other); }
  void operator( ) ( sc_indexed_inoutmaster_port_impl<T,N>& other) { bind( other ); }
  
  const T& read( ) { 
    if_type* link = get_ms_interface( );
    return link->read_inmaster( );
  }
  
  operator const T& ( ) {
      return read( );
  };
  
  this_type& operator [ ] (uint64 i ) {  // used by indexed ports
    set_address( i );
    return *this;
  }


public:
  uint64 get_address( ) { 
    return get_ms_interface( )->get_address( );
  }
  virtual void set_address( uint64 i ) {
    check_address( i );
    get_ms_interface( )->set_address( i );
  }

public:
  if_type* get_ms_interface( ) {
    return (*this).operator->( );
  }
protected:
  virtual const char* get_name( ) {
    return name( );
  }
};

//------------------------------------------------------------------
template<class T, uint64 N> 
class sc_indexed_outmaster_port_impl 
: public virtual sc_indexed_master_base<N >,
  public virtual sc_master_slave_write_if< T >,
  public virtual sc_port< sc_indexed_outmaster_if<T> >
{
public:
  typedef sc_indexed_master_base<N > base_type;
  typedef sc_indexed_outmaster_port_impl<T,N>		this_type;
  typedef sc_indexed_outmaster_if<T> if_type;
  
  void bind( if_type& link ) {
    sc_port_base::bind( static_cast<sc_interface&>( link ) );
  }
  void bind( this_type& other ) {
    sc_port_base::bind( static_cast<sc_port_base&>( other ) );
  }
  virtual void bind( sc_indexed_inoutmaster_port_impl<T,N>& other) {
    sc_port_base::bind( static_cast<sc_port_base&>( other ) );
  }
  
  void operator( ) ( if_type& link )		{ bind( link); }
  void operator( ) ( this_type& other )		{ bind( other); }
  void operator( ) ( sc_indexed_inoutmaster_port_impl<T,N>& other) { bind( other ); }

  
  void write( const T& data )	{ 
    if_type* link = get_ms_interface( );
    link->write_outmaster( data );
  }

  this_type& operator [ ] ( uint64 i ) {  // used by indexed ports
    set_address( i );
    return *this;
  }
  
  this_type& operator = ( const T& data ) {
    write( data );
    return *this;
  }


public:
  uint64 get_address( ) { 
    return get_ms_interface( )->get_address( );
  }
  virtual void set_address( uint64 i ) {
    check_address( i );
    get_ms_interface( )->set_address( i );
  }

public:
  if_type* get_ms_interface( ) {
    return (*this).operator->( );
  }
protected:
  virtual const char* get_name( ) {
    return name( );
  }
};

//------------------------------------------------------------------
template<class T, uint64 N> 
class sc_indexed_inoutmaster_port_impl 
: public virtual sc_indexed_master_base<N >,
  public virtual sc_master_slave_read_write_if< T >,