UnmappedStack/TacOS: An x86_64 UNIX-like OS from scratch

My from-scratch OS with it’s own kernel written in C and assembly

TacOS is a UNIX-like kernel which is able to run DOOM, among various other smaller userspace programs. It has things like a VFS, scheduler, TempFS, devices, context switching, virtual memory management, physical page frame allocation, and a port of Doom. It runs both on real hardware (tested on my laptop) and in the Qemu emulator.

Please note that TacOS is a hobby toy OS and is not complete enough for real usage. It has multiple known bugs.

I have a Discord server for PotatOS where I will share most updates, and you can also get help with your own OSDev project or just have a chat. You can join here.

To build and run TacOS, simply run in your shell:

git clone https://github.com/UnmappedStack/TacOS
cd TacOS
make

You’ll need to have Qemu, NASM, and Clang installed. It will automatically run in the Qemu emulator.

TacOS is under the Mozilla Public License 2.0. See LICENSE for more information.

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