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Digital Logic Sim

​A minimalistic digital logic simulator · By Sebastian Lague

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269
Topics

Recent updates

Version 2.1.6
26
20
Change Log: Added a Buzzer chip for creating sounds. This has a 4-bit volume input, and an 8-bit frequency input. The frequency range is from 27.5 to 3729.3 Hz...
3 files
Version 2.1.5
8
14
Change Log: Small improvements to simulation performance Minor reduction in simulation memory usage LED colour can now be changed from context menu (right-click...
3 files
Version 2.1.4
14
Change Log: Added keyboard shortcut to pause/unpause the simulation with Ctrl + Space Advancing a single step while paused is now down with the Space key Added...
3 files
Version 2.1.3
8
16
Change Log: Added an Undo/Redo system (ctrl+z, ctrl+shift+z) Note: this does not affect menu actions (such as creating collections, starring chips, etc). Added...
3 files
Version 2.1.2
5
16
Change Log: Added hex colour input field to chip customization menu Fixed chip 'save as' incorrectly overwriting uses of the original chip Fixed bug where you c...
3 files
Version 2.1.1
7
8
Change Log: Duplicating chips (with shift+D) now includes the connected wires Fixed thread conflict that could sometimes cause simulation to stop working when e...
3 files
Version 2.1.0
1
12
Note: I've set the version to 2.1.0 because this update contains bug fixes relating to the core simulation. It's therefore possible for the behaviour of some ch...
3 files
Version 2.0.4
6
12
Change Log: Improved wire editing controls (insert/delete wire points, and show grid while snapping) Fixed bug where collection name input field couldn't be bla...
3 files
269 topics · Next page · Previous page · First page
Topic
Last post
Hi everyone, I was thinking it might be fun to have a playlist on youtube to showcase different things that people have...
started by Sebastian Lague Apr 17, 2025 Last page
90 replies
6,518 views
A few frequently asked questions I've seen (will add more later). Last updated for version 2.1.6 Where are the AND and N...
started by Sebastian Lague May 12, 2025
26 replies
6,536 views
Sebastian hasn't updated Digital Logic Sim for a long time. So it's up to us, the community, to do mods. And I want you...
started by Murat_two Jun 13, 2025
13 replies
738 views
I need to know how to make a register
started by Sterminator1211 92 days ago
2 replies
317 views
I Have 16-bit address ram storing 16-bits, it runs at 1800 operations per second, its made using rgb screens, i got the...
110 views
No replies yet
I do not have the best computer. When trying to build a 16-bit RAM, my PC started running hot at 12 bits with DFF-RAM bu...
started by nomasan 94 days ago
2 replies
291 views
Please excuse my sloppy wiring. I have highlighted in Violet here the offending signal, which flickers in only some inst...
started by gardrek Apr 19, 2025
11 replies
749 views
it works by feed its input into it self but when the and is active it switches to the data buffer.
2 replies
303 views
12 and 16 bit stuff. please.
started by sussybuku Jun 12, 2025
4 replies
391 views
how i do make a simple CPU?
started by scratch_turbo Jun 06, 2025
3 replies
420 views
I recently changed to version 2, because I realized that its better, but I have lots of libraries I need to re-create, i...
started by Ereinis1234 Jul 06, 2025
1 reply
260 views
I keep seeing the inputs for chips at the bottom/underneath the chip, but for the life of me I cannot figure out how to...
started by welss Jul 06, 2025
3 replies
347 views
THIS IS THE STARTER PACK FOR DIGITAL LOGIC SIMULATOR. If you do not feel like following and copying Sebastian's every mo...
started by kshlok Jun 20, 2025
3 replies
622 views
The other larger unofficial DLS server is a bit disorganised and also diverges quite a bit from a proper community serve...
started by doytschReal Jun 25, 2025
1 reply
234 views
This approach actually disables the randomization of the output at start! Let me know what you think @Sebastian Lague!
started by kshlok Jun 27, 2025
3 replies
280 views
i am getting 70 steps per second my whole project is slow i only have 256 bytes of memory with a couple of 1 bytes here...
started by goADX May 30, 2025
7 replies
419 views
for the 7 segment displays, will there be any way to make them negative like how you could in v1? so we could use two's...
started by JJ90848 Apr 15, 2025
11 replies
633 views
I just wanted to inform that it would be easy if you add a chip that can transfer multibit data through one wire and a c...
started by bonico312 Jun 20, 2025
77 views
No replies yet
the title is self explanatory
started by DODO Jun 16, 2025
4 replies
232 views
Please bring back the sign from the 7-segment display...
started by erikgobrrr Jun 18, 2025
1 reply
164 views
I’ve tried connecting the input end but nothing changes????
started by Donutman12345 Jun 16, 2025
2 replies
152 views
Its slow due to my bad wiring and the fact im using all 32 bit adders instead of 8 bit or 16 bit adders. this can very m...
started by omggitzriley May 01, 2025
3 replies
318 views