/*
This file is part of JOP, the Java Optimized Processor
see <http://www.jopdesign.com/>
Copyright (C) 2007, Alberto Andreotti
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 jvm.math;
import jvm.TestCase;
public class Imul extends TestCase {
public String toString() {
return "Imul";
}
public boolean test() {
boolean ok = true;
ok = ok && mul(1, 2, 2);
ok = ok && mul(123, 456, 56088);
ok = ok && mul(-1, 5, -5);
ok = ok && mul(5, -1, -5);
ok = ok && mul(-1, -1, 1);
ok = ok && mul(0x80000000 ,0x80000000 , 0);
ok = ok && mul(0xffffffff ,0x80000000 , 0x80000000);
ok = ok && mul(0x80000000 ,0xffffffff , 0x80000000);
ok = ok && mul(0x7fffffff ,0x80000000 , 0x80000000);
ok = ok && mul(0x80000000 ,0x7fffffff , 0x80000000);
ok = ok && mul(0x7fffffff ,0xffffffff , -2147483647);
ok = ok && mul(0xffffffff ,0x7fffffff , -2147483647);
return ok;
}
static boolean mul(int a, int b, int exp) {
if (a*b == exp) {
return true;
} else {
return false;
}
}
}