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108 lines
2.7 KiB
108 lines
2.7 KiB
15 years ago
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/***************************************************************************
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* Copyright (C) 2005 by David Saxton *
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* david@bluehaze.org *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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***************************************************************************/
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#ifndef FLIPFLOP_H
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#define FLIPFLOP_H
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#include "component.h"
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#include "logic.h"
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class Simulator;
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/**
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@short Boolean D-Type Flip-Flop
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@author David Saxton
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*/
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class ECDFlipFlop : public CallbackClass, public Component
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{
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public:
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ECDFlipFlop( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
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~ECDFlipFlop();
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virtual bool canFlip() const { return true; }
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static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
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static LibraryItem *libraryItem();
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private:
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void inputChanged( bool newState );
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void inStateChanged( bool newState );
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void asyncChanged(bool newState );
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void clockChanged(bool newState );
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LogicIn *m_pD;
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LogicIn *m_pClock;
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LogicOut *m_pQ;
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LogicOut *m_pQBar;
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LogicIn *setp;
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LogicIn *rstp;
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bool m_bPrevClock;
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bool m_prevD[2];
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unsigned m_whichPrevD:1;
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unsigned long long m_prevDSimTime;
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Simulator * m_pSimulator;
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};
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/**
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@short Boolean JK-Type Flip-Flop
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@author Couriousous
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*/
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class ECJKFlipFlop : public CallbackClass, public Component
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{
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public:
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ECJKFlipFlop( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
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~ECJKFlipFlop();
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virtual bool canFlip() const { return true; }
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static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
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static LibraryItem *libraryItem();
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private:
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void inStateChanged( bool newState );
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void asyncChanged(bool newState );
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void clockChanged(bool newState );
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bool prev_state;
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LogicIn *m_pJ;
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LogicIn *m_pClock;
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LogicIn *m_pK;
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LogicIn *setp;
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LogicIn *rstp;
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LogicOut *m_pQ;
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LogicOut *m_pQBar;
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};
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/**
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@short Boolean Set-Reset Flip-Flop
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@author David Saxton
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*/
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class ECSRFlipFlop : public CallbackClass, public Component
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{
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public:
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ECSRFlipFlop( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
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~ECSRFlipFlop();
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virtual bool canFlip() const { return true; }
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static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
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static LibraryItem *libraryItem();
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protected:
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void inStateChanged( bool newState );
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LogicIn * m_pS;
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LogicIn * m_pR;
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LogicOut * m_pQ;
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LogicOut * m_pQBar;
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bool old_q1;
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bool old_q2;
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};
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#endif
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