/*
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 jbe.micro;
import jbe.BenchMark;
import jbe.Execute;
public class Array extends BenchMark {
volatile static int[] arr;
volatile static int abc;
public Array() {
arr = new int[1024];
for (int i=0; i<100; ++i) arr[i] = 27+i;
abc = 123;
}
public int test(int cnt) {
int a = 0;
int i;
/*
9: iload_2
10: getstatic #2; //Field arr:[I
13: iload_3
14: sipush 1023
17: iand
18: iaload
19: iadd
20: istore_2
21: iinc 3, 1
*/
for (i=0; i<cnt; ++i) {
a += arr[i&0x3ff];
}
return a;
}
public int overhead(int cnt) {
int a = 0;
int i;
/*
9: iload_2
10: getstatic #3; //Field abc:I
13: sipush 1023
16: iand
17: iadd
18: istore_2
19: iinc 3, 1
*/
for (i=0; i<cnt; ++i) {
a += abc&0x3ff;
}
return a;
}
public String toString() {
return "iaload";
}
public static void main(String[] args) {
BenchMark bm = new Array();
Execute.perform(bm);
}
}