Configurable-Mode Full Subtractor/Adder Using Half Subtractor/Adder And Half Adder

The circuit is a configurable full subtractor/adder constructed using half subtractor/adder, half adder, and an auxiliary OR gate. When MODE = 1 the circuit functions as a full subtractor, when MODE = 0 the circuit functions as a full adder. Variables / Signal Names: MODE = Mode configuration input, this controls what operation the circuit performs as already described above. BiCi = Borrow Input / Carry Input MdAg = Minuend/Augend Input SdAd = Subtrahend/Addend Input DifSum = Difference/Sum Output BoCo = Borrow Output / Carry Output For Half Adder: https://www.multisim.com/content/6dKQmpwSCnJ3naa3kf9JDD/half-adder/ For Configurable-Mode Half Subtractor/Adder: https://www.multisim.com/content/rjumgULVWbc9kyioLQqPv5/configurable-mode-half-subtractoradder/ For Full Adder Using Two Half Adders: https://www.multisim.com/content/cu38wufkNopY7q3DbNxMhj/full-adder-using-two-half-adders/ For Full Subtractor Using Half Subtractor And Half Adder: https://www.multisim.com/content/JbufrRs3Bhrr39rurarqAZ/full-subtractor-using-half-subtractor-and-half-adder/ For Simultaneous Dual Function Full Adder-Subtractor: https://www.multisim.com/content/vHgvafuJy7PVXGZLSyQMuC/simultaneous-dual-function-full-adder-subtractor/