Question: (a) How many logic gates are needed to build the 4-bit carry-lookahead adder shown in Figure 6.4? (b) Use appropriate parts of the result from

(a) How many logic gates are needed to build the 4-bit carry-lookahead adder shown in Figure 6.4?

(b) Use appropriate parts of the result from Part

(a) to calculate how many logic gates are needed to build the 16-bit carry-lookahead adder shown in Figure 6.5.

LO1

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