bytorbrynden/bad-kernel

A bad kernel, but not the Android one. Some Assembly required.

Hello world, I'm bytorbrynden!

Automotive & Tech Enthusiast

Greetings from the intersection of code and horsepower! I'm Brynden, a 20-something year old with an insatiable curiosity for all things automotive and a deep fascination for the ever-evolving realm of technology.

As I embark on my journey back into the realms of software and web development, my commitment is to foster a collaborative and transparent community. I firmly believe in the power of open-source development, and my goal is to contribute as much as possible to this collective knowledge pool. By keeping my work open-source, I aim to not only share my creations but also invite collaboration, feedback, and improvement from the wider community.

Let's Connect

If you have any interest in seeing more from me outside of GitHub, feel free to connect with me on any of the platforms listed below!

• Twitter
• Instagram
• LinkedIn

bad-kernel's Issues

printf-esque function

Having a function that acts similarly to C's printf, would be really useful.

Modify Makefile to make it less specific to my personal environment

Configure linker

Going based on what I currently know, this will be done with a *.ld file.

Initialize PIT

https://en.wikipedia.org/wiki/Programmable_interval_timer

Create IDT

https://en.wikipedia.org/wiki/Interrupt_descriptor_table

Documentation

As part of my learning of kernel development, I'd like to write documentation to explain how each piece of this kernel works.

This is a long-term task, therefore I won't be closing this anytime soon.

Finish setting up basic stack

The only thing left to do, is to reserve some memory for the stack (which I don't know how to do just yet), and then I think the esp register need to be pointed to the correct locations.

Newlines break scrolling

Newlines get messed up when it comes time to scroll. I'm not entirely sure why (yet).

Setup cross-compiler tools for i686 architecture

• Binutils
• GCC

Load GDT

https://en.wikipedia.org/wiki/Global_Descriptor_Table

Basic terminal

The initial TTY (terminal), will build upon the existing VGA text-mode "helper", and will be fairly simple.
To start, we will rely upon the terminal mostly for vertical scrolling.

In the future, however, the terminal will also be tasked with accepting user input (via a USB keyboard).
From this, we could eventually build simple command-shells.

Enter kernel mode

Not quite sure what all is involved in this, but it's required for sure.