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/***************************************************************************
* Copyright (C) 2004 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 "fulladder.h"
#include "logic.h"
#include "libraryitem.h"
#include <kiconloader.h>
#include <klocale.h>
Item* FullAdder::construct( ItemDocument *itemDocument, bool newItem, const char *id )
{
return new FullAdder( (ICNDocument*)itemDocument, newItem, id );
}
LibraryItem* FullAdder::libraryItem()
{
return new LibraryItem(
QString("ec/adder"),
i18n("Adder"),
i18n("Integrated Circuits"),
"ic1.png",
LibraryItem::lit_component,
FullAdder::construct
);
}
FullAdder::FullAdder( ICNDocument *icnDocument, bool newItem, const char *id )
: Component( icnDocument, newItem, (id) ? id : "adder" )
{
m_name = i18n("Adder");
// m_desc = i18n("Insert missing adder help here.");
ALogic = BLogic = inLogic = 0l;
outLogic = SLogic = 0l;
QStringList pins = QStringList::split( ',', "A,B,>,,S,C", true );
initDIPSymbol( pins, 48 );
initDIP(pins);
ECNode *node;
node = ecNodeWithID("S");
SLogic = createLogicOut( node, false );
node = ecNodeWithID("C");
outLogic = createLogicOut( node, false );
node = ecNodeWithID("A");
ALogic = createLogicIn(node);
node = ecNodeWithID("B");
BLogic = createLogicIn(node);
node = ecNodeWithID(">");
inLogic = createLogicIn(node);
ALogic->setCallback( this, (CallbackPtr)(&FullAdder::inStateChanged) );
BLogic->setCallback( this, (CallbackPtr)(&FullAdder::inStateChanged) );
inLogic->setCallback( this, (CallbackPtr)(&FullAdder::inStateChanged) );
}
FullAdder::~FullAdder()
{
}
void FullAdder::inStateChanged( bool /*state*/ )
{
const bool A = ALogic->isHigh();
const bool B = BLogic->isHigh();
const bool in = inLogic->isHigh();
const bool out = (!A && B && in) || (A && !B && in) || (A && B);
const bool S = (!A && !B && in) || (!A && B && !in) || (A && !B && !in) || (A && B && in);
SLogic->setHigh(S);
outLogic->setHigh(out);
}
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