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Digital Logic Sim

​A minimalistic digital logic simulator · By Sebastian Lague

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261
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
261 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
87 replies
6,162 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
5,866 views
i just need the simplest, most idiot-proof method to making a simple binary counter
started by Rando2048 Jun 21, 2025
4 replies
723 views
I've been following the digital logic playlist Sebastian has on his yt and he's using a 7-segment display with a - sign...
started by MarsDarklighter 47 days ago
1 reply
241 views
having a empty bus causes the whole simulation to stop working including the clock until i delete the bus (including the...
started by MartenV 47 days ago
40 views
No replies yet
so when i download app i have just a nand gate. Can someone tell me how to add other basic gates?
started by Majofer1352 49 days ago
1 reply
302 views
I made this prototype Snake game with this logic simulation, Currently you can move throughout the screen via WASD with...
started by BaconLogic Apr 22, 2025
14 replies
798 views
can you do that?
started by ORYX Apr 12, 2025
5 replies
699 views
Idk how to use it
started by ZaxinothDigital May 10, 2025
8 replies
775 views
My own CPU named "N-16" is finished, due to DLS engine it might fail fibonacci sequence but sometimes it works if there...
started by mukhash_x86 98 days ago
11 replies
661 views
INST Bin Function NOP 0000 No operation LDA 0001 Load accumulator from memory ADD 0010 Add memory to accumulator SUB...
started by Bendy509 87 days ago
9 replies
500 views
so i was playing with and auto cliker but when i touch a wire in the simulation, it made a bunch of tiny wires that turn...
172 views
No replies yet
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
722 views
I need to know how to make a register
started by Sterminator1211 78 days ago
2 replies
315 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...
107 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 80 days ago
2 replies
283 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
724 views
it works by feed its input into it self but when the and is active it switches to the data buffer.
2 replies
299 views
12 and 16 bit stuff. please.
started by sussybuku Jun 12, 2025
4 replies
386 views
how i do make a simple CPU?
started by scratch_turbo Jun 06, 2025
3 replies
399 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 93 days ago
1 reply
260 views