sc_sensitive.h

system C源码 一种替代verilog的语言

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

  The following code is derived, directly or indirectly, from the SystemC
  source code Copyright (c) 1996-2006 by all Contributors.
  All Rights reserved.

  The contents of this file are subject to the restrictions and limitations
  set forth in the SystemC Open Source License Version 2.4 (the "License");
  You may not use this file except in compliance with such restrictions and
  limitations. You may obtain instructions on how to receive a copy of the
  License at http://www.systemc.org/. Software distributed by Contributors
  under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF
  ANY KIND, either express or implied. See the License for the specific
  language governing rights and limitations under the License.

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

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

  sc_sensitive.h -- Sensitivity classes. Requires "sc_process.h"
  for declarations of sc_method_handle, &.c.

  Original Author: Stan Y. Liao, Synopsys, Inc.
                   Martin Janssen, Synopsys, Inc.

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

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

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

      Name, Affiliation, Date: Bishnupriya Bhattacharya, Cadence Design Systems,
                               25 August, 2003
  Description of Modification: Add make_static_sensitivity() methods to enable
                               dynamic method process creation with static 
                               sensitivity.

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

// $Log: sc_sensitive.h,v $
// Revision 1.1.1.1  2006/12/15 20:31:37  acg
// SystemC 2.2
//
// Revision 1.4  2006/04/11 23:13:21  acg
//   Andy Goodrich: Changes for reduced reset support that only includes
//   sc_cthread, but has preliminary hooks for expanding to method and thread
//   processes also.
//
// Revision 1.3  2006/01/13 18:44:30  acg
// Added $Log to record CVS changes into the source.
//

#ifndef SC_SENSITIVE_H
#define SC_SENSITIVE_H

#include "sysc/kernel/sc_process.h"

namespace sc_dt
{
    class sc_logic;
}

namespace sc_core {

class sc_process_handle;
class sc_event;
class sc_event_finder;
class sc_interface;
class sc_module;
class sc_port_base;
template <class T> class sc_in;
template <class T> class sc_inout;
template <class T> class sc_signal_in_if;


// ----------------------------------------------------------------------------
//  CLASS : sc_sensitive
//
//  Static sensitivity class for events.
// ----------------------------------------------------------------------------

class sc_sensitive
{
    friend class sc_module;

public:

    // typedefs
    typedef sc_signal_in_if<bool>            in_if_b_type;
    typedef sc_signal_in_if<sc_dt::sc_logic> in_if_l_type;
    typedef sc_in<bool>                      in_port_b_type;
    typedef sc_in<sc_dt::sc_logic>           in_port_l_type;
    typedef sc_inout<bool>                   inout_port_b_type;
    typedef sc_inout<sc_dt::sc_logic>        inout_port_l_type;

private:

    // constructor
    explicit sc_sensitive( sc_module* );

    // destructor
    ~sc_sensitive();

public:

    // changing between process handles
    sc_sensitive& operator << ( sc_process_handle );
#if 0
    sc_sensitive& operator << ( sc_method_handle );
    sc_sensitive& operator << ( sc_thread_handle );
#endif // 0

    sc_sensitive& operator () ( const sc_event& );
    sc_sensitive& operator () ( const sc_interface& );
    sc_sensitive& operator () ( const sc_port_base& );
    sc_sensitive& operator () ( sc_event_finder& );

    sc_sensitive& operator << ( const sc_event& );
    sc_sensitive& operator << ( const sc_interface& );
    sc_sensitive& operator << ( const sc_port_base& );
    sc_sensitive& operator << ( sc_event_finder& );

    sc_sensitive& operator () ( sc_cthread_handle, sc_event_finder& );
    sc_sensitive& operator () ( sc_cthread_handle, const in_if_b_type& );
    sc_sensitive& operator () ( sc_cthread_handle, const in_if_l_type& );
    sc_sensitive& operator () ( sc_cthread_handle, const in_port_b_type& );
    sc_sensitive& operator () ( sc_cthread_handle, const in_port_l_type& );
    sc_sensitive& operator () ( sc_cthread_handle, const inout_port_b_type& );
    sc_sensitive& operator () ( sc_cthread_handle, const inout_port_l_type& );

    static void make_static_sensitivity( sc_process_b*, const sc_event& );
    static void make_static_sensitivity( sc_process_b*, const sc_interface& );
    static void make_static_sensitivity( sc_process_b*, const sc_port_base&);
    static void make_static_sensitivity( sc_process_b*, sc_event_finder& );

    void reset();

private:

    sc_module*                                m_module;
    enum { SC_NONE_, SC_METHOD_, SC_THREAD_ } m_mode;
    sc_process_b*                          m_handle;

private:

    // disabled

    sc_sensitive();
    sc_sensitive( const sc_sensitive& );
    sc_sensitive& operator = ( const sc_sensitive& );
};


// ----------------------------------------------------------------------------
//  CLASS : sc_sensitive_pos
//
//  Static sensitivity class for positive edge events.
// ----------------------------------------------------------------------------

class sc_sensitive_pos
{
    friend class sc_module;

public:

    // typedefs
    typedef sc_signal_in_if<bool>            in_if_b_type;
    typedef sc_signal_in_if<sc_dt::sc_logic> in_if_l_type;
    typedef sc_in<bool>                      in_port_b_type;
    typedef sc_in<sc_dt::sc_logic>           in_port_l_type;
    typedef sc_inout<bool>                   inout_port_b_type;
    typedef sc_inout<sc_dt::sc_logic>        inout_port_l_type;

private:

    // constructor
    explicit sc_sensitive_pos( sc_module* );

    // destructor
    ~sc_sensitive_pos();

public:

    // changing between process handles
    sc_sensitive_pos& operator << ( sc_process_handle );
    sc_sensitive_pos& operator << ( sc_method_handle );
    sc_sensitive_pos& operator << ( sc_thread_handle );

    sc_sensitive_pos& operator () ( const in_if_b_type& );
    sc_sensitive_pos& operator () ( const in_if_l_type& );
    sc_sensitive_pos& operator () ( const in_port_b_type& );
    sc_sensitive_pos& operator () ( const in_port_l_type& );
    sc_sensitive_pos& operator () ( const inout_port_b_type& );
    sc_sensitive_pos& operator () ( const inout_port_l_type& );

    sc_sensitive_pos& operator << ( const in_if_b_type& );
    sc_sensitive_pos& operator << ( const in_if_l_type& );
    sc_sensitive_pos& operator << ( const in_port_b_type& );
    sc_sensitive_pos& operator << ( const in_port_l_type& );
    sc_sensitive_pos& operator << ( const inout_port_b_type& );
    sc_sensitive_pos& operator << ( const inout_port_l_type& );

    void reset();

private:

    sc_module*                                m_module;
    enum { SC_NONE_, SC_METHOD_, SC_THREAD_ } m_mode;
    sc_process_b*                          m_handle;

private:

    // disabled
    sc_sensitive_pos();
    sc_sensitive_pos( const sc_sensitive_pos& );
    sc_sensitive_pos& operator = ( const sc_sensitive_pos& );
};


// ----------------------------------------------------------------------------
//  CLASS : sc_sensitive_neg
//
//  Static sensitivity class for negative edge events.
// ----------------------------------------------------------------------------

class sc_sensitive_neg
{
    friend class sc_module;

public:

    // typedefs
    typedef sc_signal_in_if<bool>            in_if_b_type;
    typedef sc_signal_in_if<sc_dt::sc_logic> in_if_l_type;
    typedef sc_in<bool>                      in_port_b_type;
    typedef sc_in<sc_dt::sc_logic>           in_port_l_type;
    typedef sc_inout<bool>                   inout_port_b_type;
    typedef sc_inout<sc_dt::sc_logic>        inout_port_l_type;

private:

    // constructor
    explicit sc_sensitive_neg( sc_module* );

    // destructor
    ~sc_sensitive_neg();

public:

    // changing between process handles
    sc_sensitive_neg& operator << ( sc_process_handle );
    sc_sensitive_neg& operator << ( sc_method_handle );
    sc_sensitive_neg& operator << ( sc_thread_handle );

    sc_sensitive_neg& operator () ( const in_if_b_type& );
    sc_sensitive_neg& operator () ( const in_if_l_type& );
    sc_sensitive_neg& operator () ( const in_port_b_type& );
    sc_sensitive_neg& operator () ( const in_port_l_type& );
    sc_sensitive_neg& operator () ( const inout_port_b_type& );
    sc_sensitive_neg& operator () ( const inout_port_l_type& );

    sc_sensitive_neg& operator << ( const in_if_b_type& );
    sc_sensitive_neg& operator << ( const in_if_l_type& );
    sc_sensitive_neg& operator << ( const in_port_b_type& );
    sc_sensitive_neg& operator << ( const in_port_l_type& );
    sc_sensitive_neg& operator << ( const inout_port_b_type& );
    sc_sensitive_neg& operator << ( const inout_port_l_type& );

    void reset();

private:

    sc_module*                                m_module;
    enum { SC_NONE_, SC_METHOD_, SC_THREAD_ } m_mode;
    sc_process_b*                          m_handle;

private:

    // disabled
    sc_sensitive_neg();
    sc_sensitive_neg( const sc_sensitive_neg& );
    sc_sensitive_neg& operator = ( const sc_sensitive_neg& );
};

} // namespace sc_core 

#endif

// Taf!