@Test
	public void transferInstrMOVE_testInvalidDestinationRegisterRef() { //Checks MOVE instr. not created with invalid register ref.
		try {
			instr = new TransferInstr(Opcode.MOVE, 5, -1);
		}
		catch (IllegalStateException e) {
			System.out.println(e.getMessage());
		}
		assertNull(instr);
	}