Andrew on Nostr: a full adder generally has two extra inputs, carry-out and carry-in, the former to ...
a full adder generally has two extra inputs, carry-out and carry-in, the former to indicate an overflow and the latter to add numbers longer than the adder's width quickly, in this case you set the carry-in bit of the least significant word to 0
this isn't always the case though: e.g. if you subtract two numbers with the same full adder, you use the carry-in to supply the extra 1 after negating one of the arguments
Published at
2024-08-17 01:33:28Event JSON
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