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(1) How do you design a 4-bit subtractor (i.e. C = A - B) using 1-bit...

(1) How do you design a 4-bit subtractor (i.e. C = A - B) using 1-bit full adders, and with circuits for overflow detection. (Note: output 1 if there is overflow; otherwise, output 0.)

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Solution: Two 4-bit binary numbers A and B are inputs There à a control line to hold a binary value of either o on 1 (the coh

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