Quiz submission record for quiz5-1-1 at Mon Jul 19 01:17:15 2004: Your Answer for Question 1: af Your Answer for Question 2: RegWrite signal is the write control signal. Its function is that writes are edge-triggered, so that all the write inputs must be validate at the clock edge. Your Answer for Question 3: The purpose of the Add unit is to compute the branch target as the sum of the incremented PC and the sign-extended, lower 16 bits of the instruction. No, because ALU in the figure serve as different purpose than the adder. Your unique submission ID is quiz5-1-1-cs61c-ad-1090225035-3190.