CSE370 Quiz 3 (7 November)

In the carry-lookahead adders you designed for your previous homework assignment, you used carry propagate (P) and generate (G) signals to form the carry equations.  Design a 4-bit adder that instead uses carry propagate (P) and kill (K) signals.  Recall that K = (Ai + Bi)'.  Write equations for the four carrys (C4, C3, C2, and C1) in terms of Pi, Ki, and C0.



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