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+/***************************************************************************
+ * 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 FLIPFLOP_H
+#define FLIPFLOP_H
+
+#include "component.h"
+#include "logic.h"
+
+class Simulator;
+
+/**
+@short Boolean D-Type Flip-Flop
+@author David Saxton
+*/
+class ECDFlipFlop : public CallbackClass, public Component
+{
+public:
+ ECDFlipFlop( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
+ ~ECDFlipFlop();
+ virtual bool canFlip() const { return true; }
+
+ static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
+ static LibraryItem *libraryItem();
+
+private:
+ void inputChanged( bool newState );
+ void inStateChanged( bool newState );
+ void asyncChanged(bool newState );
+ void clockChanged(bool newState );
+
+ LogicIn *m_pD;
+ LogicIn *m_pClock;
+ LogicOut *m_pQ;
+ LogicOut *m_pQBar;
+ LogicIn *setp;
+ LogicIn *rstp;
+ bool m_bPrevClock;
+
+ bool m_prevD[2];
+ unsigned m_whichPrevD:1;
+ unsigned long long m_prevDSimTime;
+ Simulator * m_pSimulator;
+};
+
+
+/**
+@short Boolean JK-Type Flip-Flop
+@author Couriousous
+*/
+class ECJKFlipFlop : public CallbackClass, public Component
+{
+public:
+ ECJKFlipFlop( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
+ ~ECJKFlipFlop();
+ virtual bool canFlip() const { return true; }
+
+ static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
+ static LibraryItem *libraryItem();
+
+private:
+ void inStateChanged( bool newState );
+ void asyncChanged(bool newState );
+ void clockChanged(bool newState );
+ bool prev_state;
+ LogicIn *m_pJ;
+ LogicIn *m_pClock;
+ LogicIn *m_pK;
+ LogicIn *setp;
+ LogicIn *rstp;
+ LogicOut *m_pQ;
+ LogicOut *m_pQBar;
+};
+
+
+/**
+@short Boolean Set-Reset Flip-Flop
+@author David Saxton
+*/
+class ECSRFlipFlop : public CallbackClass, public Component
+{
+public:
+ ECSRFlipFlop( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
+ ~ECSRFlipFlop();
+ virtual bool canFlip() const { return true; }
+
+ static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
+ static LibraryItem *libraryItem();
+
+protected:
+ void inStateChanged( bool newState );
+ LogicIn * m_pS;
+ LogicIn * m_pR;
+ LogicOut * m_pQ;
+ LogicOut * m_pQBar;
+ bool old_q1;
+ bool old_q2;
+};
+
+#endif