FINAL EXAM SEM 2 2020-2021 [VER 1.9][#1]
Question 3
(a)
Two advantages of a bit-sliced arithmetic logic unit (ALU) circuit design:
(i) Optimize single block for size. The effect is amplified by the number of
identical blocks.
(ii) Optimize interconnect. With careful design, the requirement for routing
channels between the blocks can be eliminated.
(b)
Z = A&B
Z = A|B
Z = A^B
Z = A+B
COUT
Z[3]
+
B[3]
A[3]
Z[2]
+
B[2]
A[2]
Z[1]
+
B[1]
A[1]
Z[0]
+
B[0]
A[0]
CIN