SeqGenElm.java

/*    
    Copyright (C) Paul Falstad and Iain Sharp
    
    This file is part of CircuitJS1.

    CircuitJS1 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.

    CircuitJS1 is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with CircuitJS1.  If not, see <http://www.gnu.org/licenses/>.
*/

package com.lushprojects.circuitjs1.client;

//import java.awt.*;
//import java.util.StringTokenizer;

// contributed by Edward Calver

    class SeqGenElm extends ChipElm {
	boolean hasReset() {return false;}
	public SeqGenElm(int xx, int yy) { super(xx, yy); }
	public SeqGenElm(int xa, int ya, int xb, int yb, int f,
			    StringTokenizer st) {
	    super(xa, ya, xb, yb, f, st);
	data = (short)(new Integer(st.nextToken()).intValue());
	if(st.hasMoreTokens()){oneshot=new Boolean(st.nextToken()).booleanValue();position=8;}
	}
	short data=0;
byte position=0;
boolean oneshot=false;
double lastchangetime=0;
	boolean clockstate=false;
	String getChipName() { return "Sequence generator"; }
	void setupPins() {
	    sizeX = 2;
	    sizeY = 2;
	    pins = new Pin[getPostCount()];

	    pins[0] = new Pin(0, SIDE_W, "");
	    pins[0].clock=true;
	    pins[1] = new Pin(1, SIDE_E, "Q");
	    pins[1].output=true;
	}
	int getPostCount() {
	    return 2;
	}
	int getVoltageSourceCount() {return 1;}

void GetNextBit()
{
if(((data>>>position)&1)!=0)pins[1].value=true;
else pins[1].value=false;
position++;
}

	void execute() {
		if(oneshot)
		{
			if(sim.t-lastchangetime>0.005)
			{
				if(position<=8)GetNextBit();
				lastchangetime=sim.t;
			}
		}
		if(pins[0].value&&!clockstate)
		{
			clockstate=true;
			if(oneshot)
			{
				position=0;
			}
			else
			{
				GetNextBit();
				if(position>=8)position=0;
			}
		}
		if(!pins[0].value)clockstate=false;
			
	}
	int getDumpType() { return 188; }

	String dump(){
	    return super.dump()+" "+data+" "+oneshot;
	}
	public EditInfo getEditInfo(int n) {
	//My code
	    if (n == 0) {
		EditInfo ei = new EditInfo("", 0, -1, -1);
		ei.checkbox = new Checkbox("Bit 0 set", (data&1) != 0);
		return ei;
	    }

	    if (n == 1) {
		EditInfo ei = new EditInfo("", 0, -1, -1);
		ei.checkbox = new Checkbox("Bit 1 set", (data&2) != 0);
		return ei;
	    }
	    if (n == 2) {
		EditInfo ei = new EditInfo("", 0, -1, -1);
		ei.checkbox = new Checkbox("Bit 2 set", (data&4) != 0);
		return ei;
	    }
	    if (n == 3) {
		EditInfo ei = new EditInfo("", 0, -1, -1);
		ei.checkbox = new Checkbox("Bit 3 set", (data&8) != 0);
		return ei;
	    }

	    if (n == 4) {
		EditInfo ei = new EditInfo("", 0, -1, -1);
		ei.checkbox = new Checkbox("Bit 4 set", (data&16) != 0);
		return ei;
	    }
	    if (n == 5) {
		EditInfo ei = new EditInfo("", 0, -1, -1);
		ei.checkbox = new Checkbox("Bit 5 set", (data&32) != 0);
		return ei;
	    }

	    if (n == 6) {
		EditInfo ei = new EditInfo("", 0, -1, -1);
		ei.checkbox = new Checkbox("Bit 6 set", (data&64) != 0);
		return ei;
	    }

	    if (n == 7) {
		EditInfo ei = new EditInfo("", 0, -1, -1);
		ei.checkbox = new Checkbox("Bit 7 set", (data&128) != 0);
		return ei;
	    }
	    if (n == 8) {
		EditInfo ei = new EditInfo("", 0, -1, -1);
		ei.checkbox = new Checkbox("One shot", oneshot);
		return ei;
		}
	    return null;
	}
	public void setEditValue(int n, EditInfo ei) {
	    if (n == 0) {
		if (ei.checkbox.getState())
		    data|=1;
		else
		    data&= ~1;
		setPoints();
	    }
	    if (n == 1) {
		if (ei.checkbox.getState())
		    data|=2;
		else
		    data&= ~2;
		setPoints();
	    }
	    if (n == 2) {
		if (ei.checkbox.getState())
		    data|=4;
		else
		    data&= ~4;
		setPoints();
	    }
	    if (n == 3) {
		if (ei.checkbox.getState())
		    data|=8;
		else
		    data&= ~8;
		setPoints();
	    }
	    if (n == 4) {
		if (ei.checkbox.getState())
		    data|=16;
		else
		    data&= ~16;
		setPoints();
	    }
	    if (n == 5) {
		if (ei.checkbox.getState())
		    data|=32;
		else
		    data&= ~32;
		setPoints();
	    }
	    if (n == 6) {
		if (ei.checkbox.getState())
		    data|=64;
		else
		    data&= ~64;
		setPoints();
	    }
	    if (n == 7) {
		if (ei.checkbox.getState())
		    data|=128;
		else
		    data&= ~128;
		setPoints();
	    }
	    if (n == 8) {
		if (ei.checkbox.getState())
		{
		oneshot=true;
		position=8;
		}
		else
		{
		    position=0;
		    oneshot=false;
		}
	    }

	}

    }