How is a subtraction under/low condition indicated

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Reference no: EM131385995

(Subtraction Logic) The truth table for a 1-bit combinational binary subtractor, analogous to the half adder, computing D(ifference) = A minus B, with BL (borrow-from-left), is

(a) Design a 1-bit combinational binary subtractor, comparable to the full adder, with two data inputs (A, B), a borrow from the right input (BI), a borrow request to the left output (BL), and a difference output (D).

(b) Show how your design can be cascaded to form multi-bit subtractors.

(d) How is a subtraction under/low condition indicated?

Reference no: EM131385995

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