/*
This file is part of JOP, the Java Optimized Processor
see <http://www.jopdesign.com/>
Copyright (C) 2010, Martin Schoeberl (martin@jopdesign.com)
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 3 of the License, or
(at your option) any later version.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
package csp;
import com.jopdesign.sys.Native;
import joprt.RtThread;
/**
* This shall be a simple Hello World for the NoC based CSP.
*
*
* @author Martin
*
*/
public class HelloCsp {
static volatile boolean finished;
final static int CNT = 100000;
/**
* @param args
*/
public static void main(String[] args) {
int start = 0;
int stop = 0;
int time = 0;
System.out.println("Csp Hello World");
int nrCpu = Runtime.getRuntime().availableProcessors();
if (nrCpu < 3) {
throw new Error("Not enogh CPUs");
}
Runnable sender = new Runnable() {
public void run() {
while (NoC.isSending()) {
// wait
}
Native.wr(2, NoC.NOC_REG_SNDDST);
// there is no send function in NoC :-(
Native.wr(CNT, NoC.NOC_REG_SNDCNT);
for (int i = 0; i < CNT; ++i) {
Native.wr(i, NoC.NOC_REG_SNDDATA);
}
}
};
Runnable receiver = new Runnable() {
public void run() {
while (!NoC.isReceiving()) {
// wait
}
for (int i = 0; i < CNT; ++i) {
int val = Native.rd(NoC.NOC_REG_RCVDATA);
}
NoC.writeReset();
finished = true;
}
};
// ni must be translated from proc index to NoC address!
new RtThread(sender, 1, 1000).setProcessor(1);
new RtThread(receiver, 1, 1000).setProcessor(2);
// start the other CPUs
System.out.println("starting cpus.");
RtThread.startMission();
start = (int) System.currentTimeMillis();
while (!finished) {
;
}
// End of measurement
stop = (int) System.currentTimeMillis();
System.out.println("StartTime: " + start);
System.out.println("StopTime: " + stop);
time = stop - start;
System.out.println("TimeSpent: " + time);
}
}