Minecraft Forums

This is pretty neat. Clever tape mechanism.

Around 4 years ago, I attempted to build a Turing Machine, but it had some sort of bug, and I never got around to fixing it. Glad to see a significantly more elegant version.

Hardmuscle, you may be onto something. Unfortunately, I can't help you there as I have no experience with block swapping.

Quote from TheRuski

I made a simple video showing how to do it and how it works

reposting so people will be more likely to see this :|

Very clever optimization you have there.
I'm currently working on a 4 bit analog multiplier of comparable size (can be expanded to 8 bit with 4 multipliers in parallel and some adders) and I'm using your 24 tick multiplier as a benchmark. So far, I've gotten the delay down to 19 ticks, and I might be able to implement pipelining. Just letting you know why I asked about the delay

With all the control signals needed, won't the full evaluation take more than 24/48 ticks? Also, is this multiplier considered relatively fast for its size?

Quote from rantaoca

INFINITELY EXPANDABLE
Here's an engine that can push a Starship!

With this engine, I can move this flying house:

http://i.imgur.com/zc7i6MHl.png

Video soon to come!
How is this possible!? Check it out below!

The single engine that pushes everything is at the left. You can see the roof of the house on the right.

http://i.imgur.com/nAxmBSnl.jpg

Here's another model, an infinitely large platform. "V" Shaped.

http://i.imgur.com/fzHzAY2l.png

Hmm the engine itself will be a separate post... too many pictures xP

How about uploading a world save?

Quote from Entity

Uhm, isn't a subtractor pretty much the same thing as an adder anyway?

Almost. Since comparators are already able to subtract, subtraction would theoretically take only one gate delay, as opposed to three gate delays since addition requires one comparator to invert and one to invert back. Modifying a hex adder to subtract would add yet another gate delay from inversion.

Quote from wind2011

Why do you care how small/large it is? It's still awesome and it works.

It would contribute to making the CPU containing this circuit not horrendously huge/slow. By a little bit.

Also, does anyone else think that a hex subtractor could be faster/smaller than the hex adder?

Well, I guess that counts as greatest number of TNT in a cannon. But, if I put two Ultra Dense Cannons (a hypothetical 1.5 version) side by side and connect the trigger circuits, would that count as a single cannon and defeat this record?

Quote from Infinite2012

Also the ultra dense cannon has been proven to be a fake, that can't fire further than 500m due to inconsistencies with timings.

Wait hold up. I already specified that that cannon wouldn't work beyond 1.2.5 due to how piston timings changed. If anyone is making fraudulent claims, it's you.

I'm not even sure why you're wasting your time trolling other people's posts, like over here: http://www.minecraftforum.net/topic/1825764-just-a-lil-automated-mushroom-farm-tutorial/#entry22664400

Quote from Conundrumer

Since the sizes are nearly the same, perhaps it calls for evaluating the performance of the adders, ie worst case delay.

If your design is slightly bigger, but slightly faster, I would use it over Entity's. I'll go reconstruct Entity's adder and determine the worst case delay.

Quote from legofreak

So, in my OP, was I wrong when I said a "decoder"?
when you go from hex to binary which is it called?

To be honest, it doesn't matter that much, since we know what you're talking about. But generally, when information is compressed into fewer bits, it's being encoded. And when information is expanded, it is decoded.

Here's a really compact hex to binary encoder (unfortunately slow with a worst case delay of 14 ticks if I counted correctly)

Quote from Entity

Signal strength to Binary encoder - 5x11x3 Pistonless


- Torches on top of the blue blocks are inverted outputs. You can also get regular output under the blue blocks.
- The pink blocks have redstone dust under them

Here's a bulky, but really fast (2 tick worst case delay) hex to binary encoder

I'll take more detailed screenshots upon request.

Here's one that Entity made:

You can make it faster by spacing each bit to be two wide, replacing the input comparators with redstone dust, and inverting the inputs to get rid of the final comparator inverting the output.
EDIT: Like this

which turns out to be very similar to what Grizdale made.

There's a bunch of analog redstone designs in this thread: http://www.minecraftforum.net/topic/1630717-minecraft-snapshot-13w02a/

Considering how innovative and intricate your ideas are, I highly doubt this has been done before. I haven't had much experience with mob mechanics, so I'll leave someone else with more knowledge to implement this.
EDIT: I stand corrected, someone did it: http://www.minecraftforum.net/topic/1779796-redstone-self-mining-machine-no-mods/

Wow the decoder design is actually really clever. And this is analog hexadecimal to binary