COS, Operating System made in C

Simple x86 operating system written in c and tested on qemu.

Demo

These are simple demos showing:

• Show custom colored text
• Write text with keyboard
• Get real time user input with keyboard interrupts (No polling).
• Manage precise timings by using hardware timer.

Boot logo and keyboard input

Basic Pong game

How to run

Install tools

sudo pacman -S make nasm qemu mtools
sudo apt-get install make nasm qemu mtools 
sudo dnf install make nasm qemu mtools

Build the cross-compiling toolchain

sudo bash scripts/setup-gcc-arch.sh

You might need to add the toolchain to the path if you're not using the bash shell

Compile and run

make
make run