Quiz submission record for quiz5-1-2 at Mon Jul 19 20:12:35 2004:

Your Answer for Question 1:
c5 = g4 + (p4.g3) + (p4.p3.g2) + (p4.p3.p2.g1) + (p4.p3.p2.p1.g0) + (p4.p3.p2.p1.p0.c0)   

Your Answer for Question 2:
The ALUSrc controls whether the second ALU operand/input is 1) from second register file output (Read data 2) given that it is a R-type instruction and the mux is deasserted or 2) a sign-extended, lower 16 bits of the instruction given that it is a load instruction and mux is asserted. 



Your Answer for Question 3:
The Xs in the truth tables signal “don’t cares” meaning that the value of the input or output is not important (can be either 1 or 0). The table is incomplete. Because there are 3 inputs, there are a maximum total of 2^3 = 8 possible input combinations: 000, 001, 010, 011, 100, 101, 110, 111. 


Your unique submission ID is quiz5-1-2-cs61c-ei-1090293155-3187.