🍳 Somendra's Bootleg OS Kernel

Because writing a simple C program wasn't painful enough.
So I made a bootable OS kernel. Welcome to pain++, enjoy your stay.

🚀 Features (yes, it boots!)

• Boots via GRUB (multiboot compliant, I'm not that crazy)
• Sets up GDT & IDT like a responsible adult
• Remaps PIC (because IRQ0 crashing the CPU was getting old)
• Handles keyboard input (press keys, watch the magic happen)
• Prints GRUB memory map to screen (because printf on bare metal is art)
• Throws interrupts and handles exceptions like a moody teenager
• Runs in QEMU (for now...)

🧠 Why?

Because I wanted to understand what happens before your main function starts.
Also, I like debugging weird exceptions with zero OS help.

🛠️ How to Run

Prerequisites

You'll need these tools installed:

• i686-elf-gcc (cross-compiler)
• grub-mkrescue (GRUB tools)
• qemu-system-i386 (QEMU emulator)
• xorriso (for ISO creation)

Building and Running

1. Clone this madness:

   git clone https://github.com/somendra/os-kernel
   cd os-kernel

2. Build it:

   make

3. Run it in QEMU:

   ./qemu.sh

   Or if you prefer the manual approach:

   ./build.sh
   ./iso.sh
   qemu-system-i386 -cdrom somendraOS.iso

Keyboard input works — type like a hacker.

📸 Screenshot

🧪 Current Status

Feature	Status
Boots	✅ Working
Interrupts (IRQ)	✅ Working
Keyboard Input	✅ Working
Memory Map Printing	✅ Working
File System	❌ Not yet
Multithreading	❌ LOL
Memory Management	🚧 Coming Soon (maybe)

⚠️ Warning

This repo contains:

• Brain-melting C
• Assembly code that stares into your soul
• Comments that say "TODO: fix this mess"

Use at your own risk. Especially if you're a sane person.

📚 Inspirations

• OSDev Wiki
• Some dude on StackOverflow™
• Pure frustration

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Built with ❤️ and a lot of caffeine