chipmunk22 Messages 15 Reaction score 0 Thread starter Dec 8, 2006 #1 Does anyone know how to use 4-bit parallel adders to perform 2Cs' subtraction? Thanks. Last edited: Dec 8, 2006
waht Messages 1,502 Reaction score 4 Dec 8, 2006 #2 Just complement one input with inverters and add it to the other input.