Hi, i'm stuck in a project due next week that requires making an ALU.We need to input an operation code that says we'll add,subtract, multiply or do some logical operation on 2 4 bit inputs.First thing I'd like to ask about is whether i should use a mux or a decoder to select operation code since i don't fully comprehend the difference.Also it should display carry flag,zero flag and overflow flag which i understand but don't know how to display using ics.Help please :)