Digital Logic Sim

Sebastian Lague · 2025-04-17T21:58:52Z

Hi everyone, I was thinking it might be fun to have a playlist on youtube to showcase different things that people have built in the simulation. So if you have something you want to share, just upload a video to yt and drop the link here. Don’t worry about it having to be super elaborate or anything, I think it’s cool to see a variety of projects, both small and large. There’s also no time limit to this — I’ll check back every so often and add any new entries to the list :) If you want to check it out, you can find the playlist over here. (By the way, I’m also planning to show some of these in a video — most probably at the end of my digital logic series. That’s still quite a while away, but I’ll link that here as well once it’s eventually out).

A minimalistic digital logic simulator · By Sebastian Lague

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A topic by Sebastian Lague created Apr 17, 2025 Views: 9,405 Replies: 97

Viewing posts 41 to 47 of 47 · Previous page · First page

mukhash_x86344 days ago

My own CPU named "N-16" executing Fibonacci sequence (23 Numbers and one overflowed number)

curlymons288 days ago

I made a 4-bit CPU for fun here, it just needs RAM but other than that it works pretty good.

( Sorry for the bad video quality, I saved it in 1080p but idk what happened here haha )

Crosbyman64258 days ago

Your video quality is fine, it just takes a while for the higher quality part to finish processing.

For the XOR chip, you can actually make one using only 4 NAND chips: the first NAND is connected to both inputs, the second is connected to Input A and the output of the first NAND, the third is connected to Input B and the output of the first NAND, and the outputs of the second and third NAND chips go into the inputs of the final NAND, and the output of that is the final output.

curlymons249 days ago

Yes I actually know that, but that was only after I finished the CPU haha ! :D

Crosbyman64251 days ago

I'm making Tic-Tac-Toe in DSL.

Yes, you read that right, I'm making a fully functional Tic-Tac-Toe game in Digital Logic Sim. I got the input part figured out. Here's a sample:

fishnotfound223 days ago

I am amazed yet scared of what people can do with a game that seems so simple

Sava185 days ago (2 edits)

Really fast CPU with an assembler and Snake. I was working on it for over 50 hours total and made it easy to write new programs for.
You can download it here: https://github.com/Sava-thecoolone/BETTER-CPU

NeevorPL56 days ago

MOS 8501 Replica

wjr61453 days ago (3 edits)

I made a very traditional CPU with the worst wiring mankind has ever seen.
CU has 16 hard wired opcodes: No-Op, load, store, add, subtract, and, or, jump, jump if zero, jump if carry, load literal, output, input, halt, add literal, subtract literal. Memory is limited but with a lot more it could do a lot of cool stuff

Viewing posts 41 to 47 of 47 · Previous page · First page

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Digital Logic Sim

YT playlist for community creations Sticky