/*
This file is part of JOP, the Java Optimized Processor
see <http://www.jopdesign.com/>
Copyright (C) 2008, Christof Pitter
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/>.
*/
/*
* Created on 20.12.2007
*
* Test der Synchronisation von mehreren CPUs.
* CPU1 und CPU2 schreiben auf ein shared Array.
* CPU0 gibt das Feld aus.
*
*/
package cmp;
import com.jopdesign.sys.Const;
import com.jopdesign.sys.Native;
import jbe.LowLevel;
import cmp.IntegerClass;
public class Sync {
static Object lock1;
static IntegerClass whoAmI;
public static void main(String[] args) {
int cpu_id;
cpu_id = Native.rdMem(Const.IO_CPU_ID);
if (cpu_id == 0x00000000)
{
whoAmI = new IntegerClass();
whoAmI.numberArray = new int [5];
lock1 = new Object();
Native.wrMem(0x00000001, Const.IO_SIGNAL);
int ausgabe = 3;
while(true)
{
synchronized(lock1)
{
if(whoAmI.numberArray[0] != ausgabe)
{
for (int i=0; i<5; i++)
{
print_02d(whoAmI.numberArray[i]);
}
ausgabe = whoAmI.numberArray[0];
}
}
for(int i = 0; i<102197; i++); // 1627
}
}
else
{
if (cpu_id == 0x00000001)
{
while(true)
{
for(int i = 0; i<499; i++); //499
synchronized(lock1)
{
for (int i=0; i<5; i++)
{
whoAmI.numberArray[i] = cpu_id;
}
}
}
}
else
{
while(true)
{
for(int i = 0; i<317; i++); //317
synchronized(lock1)
{
for (int i=0; i<5; i++)
{
whoAmI.numberArray[i] = cpu_id;
}
}
}
}
}
}
static void print_02d(int i) {
//int j;
//for (j=0;i>9;++j) i-= 10;
//print_char(j+'0');
print_char(i+'0');
}
static void print_char(int i) {
System.out.print((char) i);
/*
wait_serial();
Native.wr(i, Const.IO_UART);
*/
}
}