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: 5,960 Replies: 85

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mukhash_x8689 days ago

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

curlymons33 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 )

Crosbyman643 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.

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Digital Logic Sim

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