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ram.h

/***************************************************************************
 *   Copyright (C) 2005 by David Saxton                                    *
 *   david@bluehaze.org                                                    *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 ***************************************************************************/

#ifndef RAM_H
#define RAM_H

#include "component.h"
#include "logic.h"

#include <qbitarray.h>
#include <qptrvector.h>

/**
@author David Saxton
*/
00023 class RAM : public CallbackClass, public Component
{
      public:
            RAM( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
            ~RAM();
      
00029             virtual bool canFlip() const { return true; }
            static Item * construct( ItemDocument *itemDocument, bool newItem, const char *id );
            static LibraryItem * libraryItem();
      
      protected:
            void initPins();
            virtual void dataChanged();
            void inStateChanged( bool newState );
      
            QBitArray m_data;
            LogicIn * m_pCS; // Chip select
            LogicIn * m_pOE; // Output enable
            LogicIn * m_pWE; // Write enable
            
            int m_wordSize;
            int m_addressSize;
            
            QPtrVector<LogicIn> m_address;
            QPtrVector<LogicIn> m_dataIn;
            QPtrVector<LogicOut> m_dataOut;
};

#endif

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