/*
This file is part of JOP, the Java Optimized Processor
see <http://www.jopdesign.com/>
Copyright (C) 2010, Benedikt Huber (benedikt@vmars.tuwien.ac.at)
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.devel;
import com.jopdesign.sys.Config;
import com.jopdesign.sys.Const;
import com.jopdesign.sys.Native;
public class SizeAnalysis {
/* Debugging signals to manipulate the cache */
final static int CACHE_FLUSH = -51;
final static int CACHE_DUMP = -53;
final static boolean MEASURE_CACHE = false;
static int ts, te, to;
static int[] arr1;
static int[] arr2;
static int[] arr3;
public static void main(String[] args) {
ts = Native.rdMem(Const.IO_CNT);
te = Native.rdMem(Const.IO_CNT);
to = te-ts;
int min = 0x7fffffff;
int max = 0;
int val = 0;
init();
if (MEASURE_CACHE) Native.wrMem(1,CACHE_FLUSH);
invoke();
val = te-ts-to;
if (Config.MEASURE) {
System.out.print("max: "); System.out.println(val);
}
}
static void init() {
arr1 = new int[10];
arr2 = new int[5];
arr3 = new int[15];
}
static void invoke() {
measure();
if (Config.MEASURE) te = Native.rdMem(Const.IO_CNT);
if (MEASURE_CACHE) Native.rdMem(CACHE_DUMP);
}
static void measure() {
if (Config.MEASURE) ts = Native.rdMem(Const.IO_CNT);
copy(arr1,arr2);
copy(arr2,arr3);
copy(arr3,arr1);
}
static void copy(int a[], int b[]) {
int l1 = a.length;
int l2 = b.length;
int lmin = (l1 > l2) ? l2 : l1;
for(int i = 0; i < lmin; i++)
{
a[i] = b[i];
}
}
}