Digital Logic

Design a half-subtractor circuit with inputs x and y and outputs Diff and B out . The circuit

subtracts the bits x – y and places the difference in D and the borrow in B out .

(a) Design a full-subtractor circuit with three inputs x , y , B in and two outputs Diff and

B out . The circuit subtracts x – y – B in , where B in is the input borrow, B out is the output

borrow, and Diff is the difference