rosy is a toy OS written in rust. Mainly it is a follow-along of this amazing blog series to deepen my understanding of OS concepts. One major difference that you will notice is the dearth of dependencies that the blog series makes use of. I instead wanted to do most of the things myself given that the aim here was not to create a functioning OS but to help me learn.
Currently it can do the following -
- Print to the screen
- Handle a few CPU Exceptions
- Handles timer interrupts
- Handles Keyboard interrupts
- Has paging support
- Heap allocations
- Serial output
- Extremely basic shell (just echos back what you type)
The code is extensively commented so one can go splunking through the codebase and hopefully learn a few things. The idea of this project is that it should be reasonably easy to understand.
Have nix with flake support with direnv
- Clone this repository
- cd into the directory (you will need to do
direnv allow) - Execute
cargo install bootimage
- Install and setup rust nightly
- Install qemu
- Clone this repository
- cd into the directory
- Execute
cargo install bootimage
cargo run
cargo test
cargo doc --open