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Digital Logic Sim

​A minimalistic digital logic simulator · By Sebastian Lague

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239
Topics

Recent updates

Version 2.1.6
24
17
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
239 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 90 days ago Last page
82 replies
4,208 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 66 days ago
23 replies
2,911 views
Please excuse my sloppy wiring. I have highlighted in Violet here the offending signal, which flickers in only some inst...
started by gardrek 88 days ago
9 replies
361 views
This approach actually disables the randomization of the output at start! Let me know what you think @Sebastian Lague!
started by kshlok 20 days ago
3 replies
149 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 48 days ago
7 replies
324 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 93 days ago
11 replies
477 views
i just need the simplest, most idiot-proof method to making a simple binary counter
started by Rando2048 26 days ago
1 reply
143 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 27 days ago
60 views
No replies yet
12 and 16 bit stuff. please.
started by sussybuku 35 days ago
3 replies
150 views
the title is self explanatory
started by DODO 30 days ago
4 replies
175 views
Please bring back the sign from the 7-segment display...
started by erikgobrrr 29 days ago
1 reply
119 views
I’ve tried connecting the input end but nothing changes????
started by Donutman12345 30 days ago
2 replies
123 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 76 days ago
3 replies
265 views
plz next upd
started by makkk-dev 34 days ago
1 reply
141 views
If you put a zero and one in to a bus it will be choose random of this inputs (Not the 3rd black state for zero). And wi...
started by Murat_two 34 days ago
59 views
No replies yet
I made a RISC CPU that have 16 registers. The first 6 are write only registers (First 4 are for screen and other 2 for b...
started by Murat_two 38 days ago
1 reply
176 views
Hello, I would just like to propose to add a browser version of the sim. I'm not sure how hard that would be, but it wou...
started by Elouan Grimm 54 days ago
7 replies
219 views
I'm trying to build an 8 bit divider but i can't fin any useful scheme online. Can you help me by building one or drawin...
started by DODO 46 days ago
5 replies
191 views
i literally just downloaded this like 40 min ago and i see that in the earlier versions you can get the and and not gate...
started by sofus72 94 days ago
4 replies
386 views
16-bit inputs, customizable ROM sizes, RGB leds, more keys options (for example Ctrl, Alt, Cmd, Opt, ü, ö, ...), Digit...
started by Murat_two 38 days ago
51 views
No replies yet
Hy everyone, I'm following this project but I'm stuck because I can't get the bus connections without visible wires. In...
started by maxpar 48 days ago
4 replies
132 views
how i do make a simple CPU?
started by scratch_turbo 41 days ago
2 replies
107 views