public void executeJR(RTypeInstruction instruction) { 
		RegisterFile regfile = RegisterFile.getInstance();
		AppContext.PROGRAM_COUNTER = regfile.getRegisterValue(instruction.getRegTarget());

		/* -- Jump register

	Description:
	Jump to the address contained in register $s
	Operation:
	PC = nPC; nPC = $s;
	Syntax:
	jr $s
	Encoding:
	0000 00ss sss0 0000 0000 0000 0000 1000
		 */ 
	}