OS Development Project

A custom x86 operating system developed from scratch in Assembly language. This educational project is to dive into low-level system programming concepts . For now the OS loads the GDT and then jumps to the kernel.THe CPU is completely stable in 32 bit protected mode. IDT and GDT are loaded, paging is enabled , IRWs rewired correctly and also syscalls configured.

Project Structure

• boot.asm - Bootloader code (first stage)
• stage2.asm - Second stage bootloader
• utils.asm - Utility functions and macro

Building the OS

To build the OS, you'll need:

• NASM (Netwide Assembler)
• QEMU (for emulation)

Build Commands

./build

Running in QEMU

./run

Debugging

To debug with QEMU and GDB:

./debug