Thread Simulation Version 1 (part)

// Memory1.java
// It is a thread class to be run from SimV1
// It receives parameters from the parent, a thread name and ID number


public class Memory1 extends Thread {
	private int myid;	// private to this thread
	private char memory[] = new char [10];  //memory array
	private int i; // counter

	Memory1(String name, int me) { //constructor - executed when thread is created with new
	   super(name); //super is part of the Thread class
	   myid=me;     
	   start(); // by default calls method "run"
	}

	public void run() {
		System.out.println("Howdy from " + Thread.currentThread().getName() + 
		",   id=" + myid + "   addrbus = " + SimV1.addrbus + "   databus = " + SimV1.databus);
		for (i = 0; i < 10; i++){
		   memory[i] = (char) ('A' + i);  // note the use of casting to force the conversion
		}
		//for (i = 0; i < 10; i++){ System.out.println(memory[i]); }
		System.out.println(" Memory waiting for an address on the bus.");
		while (SimV1.addrbus != -2) {  //use -2 as a terminate flag from processor
		  try { Thread.sleep(1000);     //milliseconds - slows things down for viewing
			} catch (InterruptedException e) { return; }
		  if (SimV1.addrbus > -1) {
   	  	  System.out.println("  Memory found an address: " + SimV1.addrbus);
	          //System.out.println( "  Memory at " + SimV1.addrbus + " = " + memory[SimV1.addrbus]);
			  SimV1.databus = memory[SimV1.addrbus];	
		     }
		 } // end of while loop
		}// end of run
	} // end of class