https://github.com/aaravmalani/cogos

A 32-bit Operating System
https://github.com/aaravmalani/cogos

assembly c operating-system operating-systems osdev x86

Last synced: 14 days ago
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A 32-bit Operating System

• Host: GitHub
• URL: https://github.com/aaravmalani/cogos
• Owner: AaravMalani
• License: mit
• Created: 2023-02-25T13:19:49.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2025-03-30T20:02:00.000Z (12 months ago)
• Last Synced: 2025-04-10T01:58:37.598Z (12 months ago)
• Topics: assembly, c, operating-system, operating-systems, osdev, x86
• Language: C
• Homepage:
• Size: 18.6 KB
• Stars: 3
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

          
# CogOS: A 32 bit Operating System 

## Features

- PS/2 keyboard support (via 8042 keyboard controller)

- Custom bootloader using BIOS (or CSM in the case of newer CPUs)

## Running

1. Install the required tools (`sudo apt install nasm gcc qemu-system-x86 make`)

2. Create a [GCC cross-compiler](https://wiki.osdev.org/GCC_Cross-Compiler) for the `i386-elf` target architecture (i486, i586 and i686 work too, but use `qemu-system-x86_64` in the Makefile) 

3. Set the `PREFIX` in the Makefile to `bin-location/ix86-elf`, for example `$HOME/opt/cross/bin/i686-elf` following the previous tutorial

4. Execute `make run`

## Goals

- Reaching userland (setting up paging, building a page frame allocator, etc.)

- Creating a process scheduler

- Filesystem support (probably FAT12 or FAT32 at first)

- Networking

- Adding mouse support

- Reaching long mode