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reyansh_saindane

@reyansh_saindane

Joined June 4th, 2026

  • 22Devlogs
  • 3Projects
  • 4Ships
  • 56Votes
I make cool stuff
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@reyansh_saindane on Flight Controller

1h 46m 26s logged

First steps

I started out on planning the flight controller, I got the basic parts but I still need to plan out the whole architecture a little bit more. I also started out wiring a few of the parts.

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@reyansh_saindane on BOLT-16 CPU

New and improved BOLT-16 CPU

I made a custom CPU, emulator, compiler, and assembly language.

Challenges

The hardest part was making sure all of the systems work together. This includes the clock timings and wiring.

What I’m proud of

I’m really proud of completing such a big and ambitious project. It took a lot of work (the hours are not correct bc I started logging really late).

What’s new

I added a new screen component and the ability to draw things on that screen. This took a lot of time.

  • 5 devlogs
  • 10h
  • 17.22x multiplier
  • 171 Stardust
Try project → See source code →
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@reyansh_saindane on BOLT-16 CPU

2h 6m logged

Finished screen!

I finally finsished making the screen compnent. It finally works in logisim now. Turns out the problem was my compiler bc it wasn’t compiling the RGB correctly, there were also a few small issues in the circuit.

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@reyansh_saindane on BOLT-16 CPU

2h 43m 10s logged

Added screen and drawing to emulator

I added a screen component to the emulator and allowed drawing to it. I also added an example code that draws a rectangle and square.

I still have to test it for Logisim, I added it to the compiler but I know something is going to go wrong and I don’t want to debug for hours today.

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@reyansh_saindane on BOLT-16 CPU

53m 14s logged

Added a screen

I added a screen component to my project because I wanted a way to see the CPU in action without looking at the vague data memory.

I still have to test it and integrate it into my assembly language and compiler.

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@reyansh_saindane on SimpleOS

I made a SimpleOS for the WebOS challenge. The most challenging part of this project was the notes app (because it took a log time to style properly) and the weather app (because I had to connect it to an API). I’m really proud of this project because I know barely any HTML/CSS/JS and I was still able to build something pretty clean and coherent. Try it out yourself at the link below!

  • 3 devlogs
  • 3h
  • 3.44x multiplier
  • 12 Stardust
  • WebOS 2
Try project → See source code →
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@reyansh_saindane on SimpleOS

52m 28s logged

Music app

I added a music app with 5 different choices of music (all instrumental because they were they only free downloads I could find). I’m going to ship now!

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@reyansh_saindane on BOLT-16 CPU

1h 46m 41s logged

Worked on feedback!

  • Thanks for the feedback! I worked on some of it like a thoughtful comment which pointed out a little bug in my label storage and jump code. (I stored labels with $ but looked them up without $). This also led me to finding out another bug where my code didn’t actually start at label $start. That was a 5-second fix.

  • I also worked on the README.md after recieving feedback about it.

  • I plan to work on some more feedback later (specifically updating my website UI). I thought it was fine because I have barely any experience with JS/HTML/CSS, but there’s no excuse for bad UI.

PS - I also added comment functionality to my Assembly

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@reyansh_saindane on SimpleOS

1h 25m 27s logged

New app!

I just made a timer app. I couldn’t think of any ideas for apps so I just went to some default smartphone apps, and ended up choosing a timer. If you have any ideas, I’m open to them. Just comment on this devlog.

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@reyansh_saindane on SimpleOS

I made a Simple WebOS. The theme is to keep it simple. It has a simple notes app, a simple date and time, and a simple weather app. The most challenging thing for me in this project was learning HTML/CSS/JS. I have had barely any experience with those in the past (like a few hours), so this project really helped me learn new things. I am most proud of the weather app because I had to connect it to an API.

Try project → See source code →
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@reyansh_saindane on SimpleOS

3h 32m 18s logged

Finished website

I just finished the website. The final website has a welcome screen, notes app, and a weather app with real time weather data from your location!

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@reyansh_saindane on BOLT-16 CPU

I made a custom CPU from scratch in a logic simulator along with an emulator and a compiled assembly language to go with it. This was my most challenging project by far. It required a lot of research and background knowledge along with patience. I’m really proud of what it ended up as and I’m really happy seeing my months of hard work turn into something presentable and enjoyable. Through this project, I learned a lot more about boolean algebra, logic gates, computer processes and components, and assembly languages. You can try out my project too at the demo link both in the project info and on my Github repo.

  • 7 devlogs
  • 14h
  • 14.62x multiplier
  • 203 Stardust
Try project → See source code →
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@reyansh_saindane on BOLT-16 CPU

1h 21m 35s logged

One final change

I said there wouldn’t be any more devlogs but this is the last one I promise. There was a little problem in my jump logic in the CPU, so I had to tweak the compiler a bit, but that I had to completely rewrite the compiler in the style of the emulator so I could make the changes easily.

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@reyansh_saindane on BOLT-16 CPU

4h 40m 35s logged

Emulator website finished!

I’ve just finished with the emulator website. It’s really simple with not much graphical design, but it works well so I’m happy. I had to convert the CPP code into JS using AI because I started and it deleted my progress and it would have taken too much time for a simple but tedious task.

You can try it out at the demo link! I’m going to ship now thanks for reading!

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@reyansh_saindane on BOLT-16 CPU

1h 35m 32s logged

Some big and small changes

I’m just going to list these out:

  1. Changed emulator an compiler into two pass systems (first pass reads labels, second pass is normal) and altered them to be able to jump to labels appearing before the jmp command.
  2. Replaces swp with sb (store byte), which stores a byte directly to RAM
  3. Added a new command clear, which clears the value stored in a register.
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@reyansh_saindane on BOLT-16 CPU

3h 25m 11s logged

Built an emulator!

I just finished building a simple emulator for the BOLT-16. The reason I did this was because I needed an easy way for someone to try out the CPU without having to download Logisim. Now all you have to do is write your code in the assembly folder and run emulator.cpp to see the values of the CPU RAM!

Next time I plan to build a website that you can test out the CPU with the emulator running in the background.

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@reyansh_saindane on SimpleOS

3h 29m 55s logged

Finished basic functionality

I’m building a very simple webOS (maybe too simple). I’ve just finished the basic functionality, which includes, adding a window, opening and closing it, and a top bar with data like data and time.

Next up is to make some apps!

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