Computers and Technology, 24.02.2020 18:27, KIAZTUNEZ

What gates and control would need to be added to the 4-bit adder to allow it to operate with two’s complement arithmetic to perform addition or subtraction? What changes will be required at the input and how can you select addition or subtraction as a function? Can you detect overflow of the 4-bit number using a single gate, if so, which gate and which signals?

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What gates and control would need to be added to the 4-bit adder to allow it to operate with two’s c...