tinyOS

A tiny operating system for the x86 architecture.

This is a small operating system targeting the x86 architecture (32-bit) based off of various online tutorials. The aim is primarily that of learning, and is far from a useable, modern operating system(!)

Build status

Features

• Bootable! (using GRUB)
• Set up basic memory segmentation
• Set up paged virtual memory
• Can recieve and handle basic software and hardware (IRQ) interrupts
• Can print to the (VGA text-mode) screen
• Heaped memory
• File system
• User-mode processes and executable loading

Building

1. Install prerequisites

# Linux (Ubuntu)
$ apt install make gcc nasm genisoimage bochs-sdl

# macOS
$ brew install cdrtools bochs

2. Restore external packages

$ ./init.sh

3. Compile

$ make all

4. Run in the Bochs emulator

$ make run

😊