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Digital Logic Sim

​A minimalistic digital logic simulator · By Sebastian Lague

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260
Topics

Recent updates

Version 2.1.6
26
19
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
260 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
86 replies
6,037 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
5,719 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
167 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
147 views
No replies yet
When I opened this application on my mac for the first time, I created a new project. I tried to create an OR-Gate, but...
started by Taranaki May 17, 2025
3 replies
192 views
I opened it and...didn't work and I just got grey screen in the app
started by KnZahid300 Apr 19, 2025
7 replies
304 views
Everytime I do this it turns on and off rapidly
started by L_Lex May 17, 2025
2 replies
104 views
The "ZHT80" is my project computer I've been building as I follow along Sebastian's and Ben's video series. So far it is...
started by Zhatt Apr 29, 2025
6 replies
584 views
took me to make this like 3 hours, there is 6 address, 6 bit, So 32 bits EEPROM
started by Turbo4444 May 14, 2025
1 reply
139 views
where? i wanna transport to my computers i mean my school laptop to home computer
started by Turbo4444 May 13, 2025
3 replies
123 views
I was able to show a full 64x64 image (from google)!!!
started by omggitzriley May 10, 2025
12 replies
375 views
Hi, I had a quick question, of that I love playing this game, and I was just wondering if there would be a way of you be...
started by BookBagelKat May 10, 2025
1 reply
152 views
Does anyone know if there is a copy/ paste option in the program an how to do it?
started by MrBluewolf65 May 12, 2025
2 replies
126 views
I've been trying to work on a setup that counts up, but I always run into issues. Does anyone have anything?
started by Rando2048 May 08, 2025
9 replies
351 views
I made an 8-Bit computer based off of the 6502. It has 256 Bytes of memory, excluding the stack, A,X and Y registers and...
started by BaconLogic May 04, 2025
8 replies
578 views
How does one make a chip with displays of what ever kind to show when you turn it into a chip?
started by MrBluewolf65 May 12, 2025
3 replies
130 views
I love the roms... i use them for almost everything when i can. one issue though, is manually typing all the values for...
started by omggitzriley May 11, 2025
1 reply
123 views
I downloaded the files and ran them but nothing happened
started by Diego May 07, 2025
3 replies
227 views
i want a discord server where i can see and download things other people made and download mods if those exist (i want a...
started by DerbButDev May 10, 2025
1 reply
134 views
I have been looking for this exact thing for a while now and this is perfect, the only one issue is that you cant copy a...
started by AngusBro May 05, 2025
4 replies
186 views
This would especially be helpful with the bus endings -- some way to rotate or flip chips would be great, especially wit...
started by Perodactyl Apr 13, 2025
1 reply
262 views