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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
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