MorphiOS

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Wake up, Neo
The Matrix has you
Follow the white rabbit
...
Knock, Knock, Neo.

MorphiOS is a lightweight 32-bit operating system written in C++ for the i386 (x86) architecture, which I am developing to teach myself how operating systems work. Feel free to use the code from this repo.

Currently supported features:

• Kernel (interfaced with GRUB bootloader)
• Global Descriptor table (GDT)
• Interrupts and interrupt handlers
• Drivers for graphics, keyboard and mouse
• Text mode and Graphics mode (using VGA video cards)
• Multithreading / Concurrency

Planned features:

• Dynamic memory management (heap allocation)
• Networking
• Hard drive support
• System calls / POSIX

Used the following learning resources:

• https://wiki.osdev.org/
• http://wyoos.org/

Installation

Dependencies

Essential:

• make
• Host OS: Linux. Development has been done on Windows Subsytem for Linux on Windows 10 (Ubuntu 20.04.2 LTS). Or you can develop on Ubuntu or another Debian based OS.
• GCC cross compiler for i686-elf targets. Read this tutorial for more info on how to do this. (sudo apt install g++ binutils libc6-dev-i686)
• GRUB (specfically GRUB2) bootloader (to invoke grub-mkrescue). Comes with Linux or google how to install it.
• Xorriso, the .iso creation engine used by grub-mkrescue (sudo apt install xorriso).

Optional:

• Install qemu. Required for booting and testing the OS in a VM locally.

Compiling morphiOS

Open Makefile and modify GCC_FOLDER to the directory of your g++ cross compiler.

Open a terminal and run:

• make install

Running morphiOS

You can run morphiOS locally using qemu.

• make install
• make run

Text mode

Graphics mode

Or you can generate the ISO image and run it using Virtualbox.

Cleaning the project

Open a terminal and run:

• make clean