Building a Basic Operating System - IO from Scratch

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Added 2 months ago by admin

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The last IO video ended with loading a program from the SD card and executing it directly. The next logic step is to build this functionality into the system monitor thereby starting the process of turning it into a basic operating system

It was tough to decide which series to add this too, in the end I opted with IO as it feels like a a natural follow File systems.

This was far more programming that it would be possible to record and edit. I’ve used the “show and tell” model here to show the work I’ve done and explain what I did. You can get the code, play with it, take a deeper look and discus it on the discords #toolchain channel.

0:00 Introduction
0:30 Goals Discussion
2:53 Current Functionality
3:47 Introducing Jam-OS!
4:34 bytes free
6:20 Utility: diskinfo
6:45 Utility: cd
6:59 Executable files
8:51 Passing arguments
9:48 How does it all fit?
10:30 Utility: vga
10:41 Utility: gpio
11:04 Utility: rtc
12:28 Utility: type
13:23 Text Demos
14:23 System Functions
15:41 Error Handling
16:21 Boot up
17:31 Snek!
17:55 Outro