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This is my calculator. I am going to make it double digits next and before I said that you made a binary calculator you just had to put a lot of xor gates together with some stuff. Also, The xor gate came from devast8a although I changed it a bit.

I'll probably use array on the next one with something to quicken the voltage. (I think that's what it is called)
does anyone know anyways to make it better.

Actually I am going to use inst