/*
This file is part of JOP, the Java Optimized Processor
see <http://www.jopdesign.com/>
Copyright (C) 2001-2008, 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 wcet;
import com.jopdesign.sys.*;
public class Loop {
/**
* @param args
*/
public static void main(String[] args) {
foo(true, 123);
}
public static int foo(boolean b, int val) {
// measured: 1369
// wcet: 1393
// difference is 24 cycles:
// iload_1 1
// ireturn 23
int i, j;
// int ts, te, to;
// ts = Native.rdMem(Const.IO_CNT);
// te = Native.rdMem(Const.IO_CNT);
// to = te-ts;
// ts = Native.rdMem(Const.IO_CNT);
for (i=0; i<10; ++i) { //@WCA loop=10
if (b) {
for (j=0; j<3; ++j) { //@WCA loop=3
val *= val;
}
} else {
for (j=0; j<4; ++j) { //@WCA loop=4
val += val;
}
}
}
// te = Native.rdMem(Const.IO_CNT);
// System.out.println(te-ts-to);
return val;
}
}