A 4-bit carry-look ahead adder (CLA) is used to add the two numbers: (A3A2A¡Ao) = 0110 and B (B3B2B1¡Bo) = 1001 with an external carry-in C=1. Use the CLA carry-out equation ( S; = P;OC; , C; +1 = G¡ + P; C; Where P; = A;OB; and G¡ = A¡B;) to compute the values of following outputs? I. A Carry-Out = C3 II. Sum = S3

A 4-bit carry-look ahead adder (CLA) is used to add the two numbers: A
(A3A2A1A0) = 0110 and B (B3B2B1B0) = 1001 with an external carry-in C0=1. Use the CLA carry-out equation ( Si = Pi Ci , Ci + 1 = Gi + Pi Ci Where Pi = Ai Bi and Gi = AiBi) to compute the values of following outputs?
I. Carry-Out = C3
II. Sum = S3