Porting Xinu OS

What is Xinu OS

Xinu stands for Xinu Is Not Unix -- although it shares concepts and even names with Unix, the internal design differs completely. Xinu is a small, elegant operating system that supports dynamic process creation, dynamic memory allocation, network communication, local and remote file systems, a shell, and device-independent I/O functions. The small size makes Xinu suitable for embedded environments.

Why Xinu though?

Most operating systems are heavily built around x86. Most teaching courses immediately dive into bootloaders, paging and virtual memory systems, A20 lines, and whatnot. These are all a bit tedious parts to understand and even more to port.

Xinu OS focus is on:

Basically, all the fun parts! It will allow you to set up a elegent operating system for tweaking and experimenting.

Unreliable guide to porting Xinu OS

The source code does not contain too many lines of code and is clearly written. Depending on the architecture of your hardware you probably should download on of the source files that closely resembles yours.
In case you are in a hurry, you might want to focus on the following files and directories:

Once you have ported these files + have written an UART device driver, you should have a basic working operating system that you can use for further exploration and experimenting!

Source STM32 port

Check out https://github.com/real-xinu/xinu-stm32 for my port

More info

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