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Digital Logic Sim

​A minimalistic digital logic simulator · By Sebastian Lague

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262
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
262 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
6,184 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
5,907 views
https://drive.google.com/file/d/11ltvVGB6ma0UTijNF-N0uWPfG0ltJ5fw/view?usp=shari... Hello, I started the update to versi...
started by Cyber974 Jun 06, 2025
2 replies
101 views
We love Digital Logic Sim, Sebastian Lague. Can you continue updating it. This situtaion also happened in v1. We don't l...
started by Murat_two Jun 01, 2025
3 replies
181 views
i have photo to explain THE FIRST PICTURE IS D-LACTH IT DOSENOT USES SR-LACTH BECAUSE SR LACHT KEEPS RANDOMISING AND THE...
started by bonico312 Jun 03, 2025
100 views
No replies yet
Does anybody have a dot or rgb display program? If so, can you 1. go to terminal 2. navigate to for windows: C:\Users\[U...
started by kshlok Jun 01, 2025
1 reply
117 views
Hi i'm trying to use the dot display but i don't know how use it. Can anyone help me please? excusme for the language bu...
started by leo.zorro.11 Apr 16, 2025
5 replies
497 views
Hey guys! So I've just gotten into this and I'm playing around with the RGB Display, but I get this weird banding patter...
started by Hahoolah May 31, 2025
8 replies
205 views
this game is addicting i am playing it 24/7 making computers is hard
started by goADX May 29, 2025
1 reply
118 views
I have been working on this one for a while now, but I have managed to get fully-featured pong running on my 8-bit compu...
started by Zhatt May 26, 2025
1 reply
437 views
I made a little documentation where I explain how you can get started with Digital Logic Sim V2! https://henriheyer.de/d...
started by HMT May 04, 2025
3 replies
300 views
SCROLLING LEVEL. VID IS youtube.com/watch?v=reX6NL3gVyU
72 views
No replies yet
Is there a way to duplicate/copy and paste in DLS, Normally you would just save the chip but I accidently built the whol...
started by vl109 May 17, 2025
2 replies
202 views
Can you add wasd or arrows up down left right to move, and Q and E zoom out and in?
started by Turbo4444 May 14, 2025
12 replies
316 views
How does one make a simple chip that delays a pulse for a few milliseconds? Anyone have any ideas?
started by MrBluewolf65 May 14, 2025
9 replies
408 views
I just made a program that fills the entire 16x16 dot display but it’s leaves out the 9th spot on each row what’s wr...
started by L_Lex May 23, 2025
2 replies
97 views
In DLS, I can't detect if my input is disconnected and my chips treat it as an off state. Can you make a chip which dete...
started by kshlok May 21, 2025
2 replies
145 views
So I've been trying to make a program that requires a lot of storage, so I create some modules each with 16 ROM chips. I...
started by AbleSundew74444 May 21, 2025
7 replies
190 views
Whenever you name a chip, and a chip already has the name. You can press enter and it saves the chip as something else a...
started by TheGameDeveleper May 11, 2025
1 reply
170 views
does anyone know how i would make decimals work in the sim? I am trying to make division to 3 d.p. and for that i of cou...
started by daquietkid1 May 18, 2025
1 reply
143 views
Holy crap, this simulator is fire. I've made a working CPU, random number generator, and even flappy bird! My suggestion...
started by LRKINR May 18, 2025
149 views
No replies yet