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User talk:Kyace/Adder

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Hey, you haven't included, in the full adder, if Carry = 1, A = 0, B = 0. If you have one carry but no normal imputs. Maybe this is impossible, but i noticed it. I thought maybe you could add another hallway connected to the source and to the sum output; Put in a door connected to the Carry input and (after that) a hatch for each of the inputs that drains away. This allows a 1 in the sum if you have a carry and no inputs, but takes this extra bit totally out if you have any inputs or no carry.