[12/12/10]Carry-skip adders. a. [12]Assuming that time is proportional to logic levels, how long does it take an n-bit adder divided into (fixed) blocks of length k bits to perform an addition? b....

a. [12]Assuming that time is proportional to logic levels, how long does it

take an n-bit adder divided into (fixed) blocks of length k bits to perform an

addition?

b. [12]What value of k gives the fastest adder?

c. [10]Explain why the carry-skip adder takes time 0

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