@Test(expected=Program.IllegalOperationException.class) // INVALID OP
public void testINVALID_1() {
VM vm = new VM();
program = new Program(Hex.decode("60012F6002"), invoke);
String s_expected_1 = "0000000000000000000000000000000000000000000000000000000000000001";
try {
vm.step(program);
vm.step(program);