ComputiOS

Computer Operating System, something I work on in the free time I have. I don't have any idea where the name (more so the "i" in ComputiOS) came from, but it clicks.

My goals for this OS

I want this operating system to be able to play Crab Rave on YouTube, while rendering a nice looking UI. This goal is definitely more than ambitious, but I believe with enough time I can meet that goal. It will be a 64 bit OS, targeted towards real, modern hardware.

What I've built so far:

• A BIOS-only bootloader I wrote myself that sets up long mode, paging, video, and loads the kernel.
• A small kernel with a tick system that runs off the PIC.
• An interrupt descriptor table with an exception handler
• A physical and virtual memory manager.
• A driver model that registers and binds devices to drivers on boot.
• A framebuffer-based software GUI renderer that can render rectangles and text in 32-bit color.
• An AHCI driver that reads disks from SATA ports and assigns them an ID (e.g. disk0, disk1).

What I'm planning to add in the future (in no particular order):

• A preemptive scheduler that differentiates processes from threads and vice versa.
• An upgraded tick system using the APIC.
• My own journaling filesystem made for the OS.
• A USB HID driver for keyboards, mice, controllers and such.
• UEFI boot support (written myself, of course).
• Network Interface Device drivers.
• TCP/IP support.
• HTTP/TLS support.
• Audio/video encoding/decoding.
• And more, as I think of things to add or I get requests to add things.

HOW TO RUN

• You will need a cross compiler+linker, more specifically GCC and LD cross compiled for x86_64-ELF ....- For more info on building a cross compiler, check out GCC Cross-Compiler on the OSDev Wiki
• You will also need to install nasm to assemble the assembly files.
• If you want to run it, you'll also need qemu-system-x86_64

When everything is setup...

• First run make clean to make sure there's no build folder with garbage or old output files.
• Then run make to create the build folder and compile everything there.
• To run it in qemu, run make run.

PULL REQUESTS

Because this is a legacy version, no new PRs can be made. You can download this code and modify it as you will, but this will no longer be maintained.