Hello cool people, I'm new to Proteus and overall designing digital electronic circuits. I have to design a 4 BIT ALU unit capable of adding, subtracting, multiplying using full and half adders, so the information has to enter by 2 registers of 4 bits type D, and have a selector system that will decide if the ALU will add, subtract or multiply. Does anybody know how to do this? or give me guidance regarding it since I'm at level 0. Any help will be much appreciated. Thank you so much!!!