You may use ones or twos compliment of B to perform subtraction.
4 Bit Subtractor How To Define TheThe problem I am having is how to define the rules of the circuit.My interpretation of uncomplemented is for the answer to be unsigned. I would have to therefore design a method, as in the case above to change 1111 (-1) to unsigned. Here is where I am stumped, as then the answer would have to appear as 10001. The problem with this idea is that the MSB can also be 1 when overflow occurs. At least then youll have 2s complement as the negative answer. Provide details and share your research But avoid Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. MathJax reference. To learn more, see our tips on writing great answers. Not the answer youre looking for Browse other questions tagged digital-logic logic-gates or ask your own question.
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