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 *   Copyright (C) 2003-2005 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.                                   *


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

Simple logic counter. 4 Inputs, 4 Outputs.

Outputs (A-D) represent the stored value (0-15).
The inputs are:
@li en - Enable incrementing of value
@li in - Input (trigger high)
@li r - Reset stored value to 0
@li ud - Up/Down increment

@short 4 Bit Binary Counter
@author David Saxton
00030 class BinaryCounter : public CallbackClass, public Component
      BinaryCounter( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
      static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
      static LibraryItem *libraryItem();
      void inStateChanged( bool state ); // Input
      void rStateChanged( bool state ); // Reset
      void enStateChanged( bool state ); // Enable
      void udStateChanged( bool state ); // Up/Down
      void outputValue();
      void dataChanged();
      void initPins( unsigned numBits );
      LogicIn *enLogic, *inLogic, *rLogic, *udLogic;
      LogicOut * m_pLogicOut[26];
      unsigned m_numBits;
      bool b_triggerHigh;
      bool b_en; // Enable
      bool b_ud; // Up/Down
      bool b_oldIn;
      bool b_reset;
      long m_value;
      long m_maxValue;
      bool m_bDoneLogicIn;


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