Quiz submission record for quiz5-1-1 at Mon Jul 19 09:59:33 2004: Your Answer for Question 1: They simplify the implementation my similarize the execution of many instruction classes Your Answer for Question 2: It takes the data input and put it in the register input Your Answer for Question 3: The Add unit compute the branch target address (sum of the PC+4 and the signed extended lower 16 bits of the instruction) No, since each one takes care of a diffrent thing. Also, the ALU does not have enough input ports to take care both operations. Your unique submission ID is quiz5-1-1-cs61c-by-1090256373-589.