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Digital Logic Sim

​A minimalistic digital logic simulator · By Sebastian Lague

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272
Topics

Recent updates

Version 2.1.6
26
21
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
272 topics · Next 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
94 replies
6,948 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
7,395 views
New update available! Updated version is here → https://www.patreon.com/file?h=143189780&m=562067819 Please download o...
started by DreamAboutYou 8 hours ago
5 views
No replies yet
pulses appear to be a lot longer than one tick and i need a one tick pulse
started by tttoby 24 days ago
2 replies
113 views
Tried Version 1 and that worked just fine.
started by crashandflow Apr 19, 2025
1 reply
89 views
so when i download app i have just a nand gate. Can someone tell me how to add other basic gates?
started by Majofer1352 82 days ago
2 replies
370 views
It's based off the LEG from the game "Turing Complete." The program I wrote is made using customasm. It took over 2 minu...
started by Perodactyl Apr 14, 2025
8 replies
722 views
Hello, I am kinda new to this, and tried my luck with your programming. I want to start with some simple 8 bit addition...
started by thijsvd23 13 days ago
3 replies
110 views
2 replies
152 views
i used roms for my 4-bit adder chip, and it did 1,000,000 operations per second, i think my original did 384000. i also...
2 replies
137 views
Recently, I lost a game of tic tac toe I made because I couldn't save my project. It's still there in the projects tab b...
started by Nathan Henry 13 days ago
2 replies
88 views
hi im making a unofficial discord server for this game: https://discord.gg/bPVG8MkMt9 we have over 200 people in it righ...
started by adamindibiemiravci Apr 14, 2025 Last page
27 replies
1,990 views
Since I built my CPU with a costum ISA in DLS, I've literally been in love with my ISA, because I made it. Guess what? I...
started by virtual_matt 80 days ago
11 replies
729 views
good day, 1) i wander how to calculate time-delay of a chip we only have a NAND gate for start, say it has delay 1, and...
started by daemonaaspb 21 days ago
58 views
No replies yet
Its less of crashing and more of not starting at all? If this is a known issue please help me!
started by imdevXD 22 days ago
30 views
No replies yet
Gates are fun when you are starting out in digital stuff, but if you want to step up your game, you'll gonna need to lea...
started by Arnadath 40 days ago
8 replies
498 views
Is there a Unity patch for this program? The important Unity fix for the "CVE-2025-59489 security vulnerability".
started by vdaa 25 days ago
38 views
No replies yet
Should I use stuff like logic ribbons and data that the game gives me, or not. I'm trying to prove myself as much as pos...
started by Fey Scratcher.gml 29 days ago
62 views
No replies yet
A loop shift register to be specific. Ive tried everything and nothing has worked. 1st pulse is 1 tick, 2nd pulse is 3 t...
started by Numbers1234 32 days ago
7 replies
252 views
I want to add NOT, AND and other gates down to the STARRED section.. and how in world is this possible? People are menti...
started by tumanbay 43 days ago
1 reply
336 views
3 replies
453 views