Show the design of 2-bit adder with carry-lookahead generator as given in Figure 5.2.2 of the chapter.

(assume operands Aand B as A = A6A5A0and B= B6B5B0)

P3 A3 B3 B SUM CARRY S3 G3 PO P1 P2 GO c3 G1 G2 P2 A2 B2 SUM CARRY S2 G2 P1 A1 B1 SUM CARRY si G1 c1 PO SO AO BO SUM CARRY GO Figure 5.2.2: Design of a Carry-Lookahead Adder P3 A3 B3 B SUM CARRY S3 G3 PO P1 P2 GO c3 G1 G2 P2 A2 B2 SUM CARRY S2 G2 P1 A1 B1 SUM CARRY si G1 c1 PO SO AO BO SUM CARRY GO Figure 5.2.2: Design of a Carry-Lookahead Adder