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//****************************************************************************

// ---- version information ----

//

// GatedSRLatch.java     v 1.00 b1

// Written by:           I. van Rienen / E-mail ivr@bart.nl

// URL:                  http://www/bart.nl/~ivr

// Initial release:

// Released in public domain:

//

// ---- Description ----

// Java class containing methods for a Gated set / reset latch

//

// This program and the Java source is in the public domain.

// Permission to use, copy, modify, and distribute this software

// and its documentation for NON-COMMERCIAL purposes and

// without fee is hereby granted.

//

//    Copyright 1996

//

//    Iwan van Rienen

//    Joan Maetsuyckerstr. 145

//    2593 ZG  The Hague

//    The Netherlands

//

// I am not responsible for any bugs in this program and

// possible damage to hard- or software when using this program.

//****************************************************************************

import java.applet.Applet;

import java.awt.*;

import java.util.Vector;



class GatedSRLatch extends IntegratedCircuit {



//----------------------------------------------------------------------------

// The constructor of a new Gated SR latch

//----------------------------------------------------------------------------

    public GatedSRLatch(Pin PinGrid[][], int x, int y) {

        super (x, y, 10, 6, 3, 1, 4, 4, 3, 2);      // x,y,w,h HitBox x,y,w,h,I,O

        IPin[0] = new InputPin("S", 1, 2, 2, 0, 0, 0, ComponentPin.PIN_NORMAL); // name, x, y, w, h, inv

        IPin[1] = new InputPin("C", 1, 3, 2, 0, 0, 0, ComponentPin.PIN_NORMAL); // name, x, y, w, h, inv

        IPin[2] = new InputPin("R", 1, 4, 2, 0, 0, 0, ComponentPin.PIN_NORMAL); // name, x, y, w, h, inv

        OPin[0] = new OutputPin("Q", 9, 2, -2, 0, 0, 0, ComponentPin.PIN_NORMAL); // name, x, y, w, h, inv

        OPin[1] = new OutputPin("Q", 9, 4, -2, 0, 0, 0, ComponentPin.PIN_NEGATIVE); // name, x, y, w, h, inv

        ComponentName = "gated SR-latch";

        ClassName = "GatedSRLatch";

        RegisterPins (PinGrid, x, y);

    }



//----------------------------------------------------------------------------

// The constructor of a new gated SR latch, which is a copy of CompToCopy

//----------------------------------------------------------------------------

    public GatedSRLatch (ElectronicComponent CompToCopy, int xo, int yo) {

        super (CompToCopy, xo, yo);

    }



//----------------------------------------------------------------------------

// Method for copying this component.

//----------------------------------------------------------------------------

    public ElectronicComponent Copy(int xo, int yo) {

        GatedSRLatch NewComponent = new GatedSRLatch(this, xo, yo);

        return NewComponent;

    }



//----------------------------------------------------------------------------

// Here is the code that's simulating the component

//----------------------------------------------------------------------------

    public void SimulateLogic() {

        if (IPin[1].getLevel() == 5) {              // clock

            if (IPin[0].getLevel() == 5) {          // set

                OPin[0].Level = OPin[1].Level = 5;

            }

            if (IPin[2].getLevel() == 5) {          // reset

                OPin[0].Level = OPin[1].Level = 0;

            }

        }

    }

}