So I’ve been diving into threshold logic lately and I was able to use that to come up with my own unique adder design in the game. If you’re not familiar with threshold logic it uses more than just high or low signals for the logic. Threshold logic is the weighted sum of the inputs or in Minecraft’s case using signal strength as the inputs for the logic circuit. This means any line can be A or B or Carry in. Because all the data is going down one wire path in the form of signal strength… the adder logic is simply 3 observers and 3 copper bulbs (minus the inputs) that’s it. This shows something really cool about logic design. You dont need XOR gates and AND gates to make an adder. All that matters is the output matches the expected result… oh and if your wandering why I have 3 outputs for the adder it’s because since I’m using T flip flops when it switches from A + B to A + B + carry it drives the 2nd flip flop off so I needed a 3rd one that I OR gated with each other to keep the carry line high if there was a carry… normally I do RUST electrics for my channel and even have an ARC adder for that game as well but I really wanted to do it in Minecraft too so here I am. It’s definitely not faster than the 3 tick adder some people use but it is the only threshold adder to be made in MC so it’s definitely unique. Time wise it’s about 5 ticks for the inputs and 4 ticks for the carry. So still decent
by Lagfoundry