public void executeSLTU(RTypeInstruction instruction) {
		//incorrect
		RegisterFile regFile = RegisterFile.getInstance();
		if(regFile.getRegisterValue(instruction.getRegSource1()) <
				regFile.getRegisterValue(instruction.getRegSource2())){
			regFile.setRegisterValue(instruction.getRegTarget(), 1);
		}else{
			regFile.setRegisterValue(instruction.getRegTarget(), 0);
		}
		AppContext.PROGRAM_COUNTER++;
		/* -- Set on less than unsigned

	Description:
	If $s is less than $t, $d is set to one. It gets zero otherwise.
	Operation:
	if $s < $t $d = 1; advance_pc (4); else $d = 0; advance_pc (4);
	Syntax:
	sltu $d, $s, $t
	Encoding:
	0000 00ss ssst tttt dddd d000 0010 1011
		 */ 
	}