2 Tick Pistonless Full Adder

[konsumlamm]

So I was wondering if I could get a 2 tick full adder. After thinking a bit I came up with a version that is 2 ticks for every operation. It uses two 1 tick comparator XORs, a normal 2 tick torch AND gat and a comparator AND gate (comparator with a torch at the b input). That all forms a 2 tick full adder.





As you can see I didn't try to make it very compact, I'm sure it could be done way smaller. As far as i know this is the first pistonless 2 tick full adder, correct me if I'm false. If you want to see it on the server, I made a warp (/warp 2tickFA).

EDIT: Koyarno told me that you can achieve the same speed with a decoder + lookup table, however my version is smaller and uses "real" logic gates

[Matthew]

you can probs get a 2 tick 2 bit adder with the decode/lookup method. with this you cant.

[Koyarno]

Though its usage lies in parallel prefix adders / multipliers, minecraft is just super efficient with all these 4 tick complete adders lying around. OR if you want to set yourself a challenge, make a unit in alfa build using only torches & redstone.

[LambdaPI]

The pictures don't work

[JeremyG]

fixed

[LambdaPI]

How many bits can you do with that thing?

Edit: I just realized it's an rca

[Koyarno]

Derp! How much ripple in a 1 bit rca?

[LambdaPI]

Derp! A 1 bit rca is not an rca, it's just a ca

[embizone]

I built one of these a long time ago before comparators. ezpz.

[LordDecapo]

The scaling on this is what makes me pout..

[jxu]

Stupidest thing I've ever thought up, 4 years ago...

[LambdaPI]

so its a decoder