Adder and Subtracter 4 Bit

@saturator

10 years ago

https://everycircuit.com/circuit/5340856809684992

Lowermost Array : B[3:0] Above that : A[3:0] Switch to the Right : C_in => if 0->Add; 1->Subtract LED : On->Overflow Note: A[3] and B[3] are MSB's