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OS

Writing & Making Operating System and Kernel parts so simple like Hello World Programs, Starting from writing Bootloaders, Hello World Kernel, GDT, IDT, Terminal, Keyboard/Mouse, Memory Manager, HDD ATA R/W, VGA/VESA Graphics

Install / Use

/learn @pritamzope/OS

README

OS

Simple Operating System programs starting from Bootloader in assembly to Kernel in C, and other programs like OS Calculator, Low Level Graphics etc.

Kernel contains C programs for Simple HelloWorld, Keyboard I/O etc... and little bit assembly programs for low level operations.

VGA contains C kernel and assembly program for seeting up Video Graphics Array(VGA) and drawing some basic shapes by ploting pixels.

Tic-Tac-Toe a simple tic-tac-toe DOS game with boxes, Pong-Game using graphics

Requirements :-

(install following packages using apt-get)<br/>

  1. GNU/Linux :- Any distribution<br/>
  2. make :- make utility<br/>
  3. Nasm :- NASM Assembler(nasm)<br/>
  4. GCC :- GNU Compiler Collection, C compiler<br/>
  5. xorriso :- A package that creates, loads, manipulates ISO 9660 filesystem images.(man xorriso)<br/>
  6. grub-pc-bin: GRUB binaries and modules<br/>
  7. mtools: utilities to access DOS disks in Unix<br/>
  8. grub-mkrescue :- utility to make ISO image<br/>
  9. QEMU :- Quick EMUlator to boot our kernel<br/>
  10. VirtualBox :- A full graphical virtual environment
$ sudo apt-get install make nasm gcc grub-pc-bin mtools xorriso qemu qemu-system virtualbox

NEW KERNEL

A new modified source code has been added to "NEW KERNEL" directory. Compilation scripts are replaced with Makefile. Assembly code is replaced with NASM assembly rathen than GNU AS.

Order

  1]   Console<br/>   2]   GDT<br/>   3]   IDT<br/>   4]   TSS<br>   5]   Keyboard<br/>   6]   Terminal<br/>   7]   Timer<br/>   8]   Mouse<br/>   9]   FPU<br/> 10]   Memory Info<br/> 11]   Physical Memory Manager<br/> 12]   KHeap<br/> 13]   Paging<br/> 14]   ATA read/write<br/> 15]   BIOS 32<br/> 16]   VGA<br/> 17]   VESA VBE<br/> 18]   Bitmap Text<br/>

View on GitHub
GitHub Stars804
CategoryDevelopment
Updated10d ago
Forks111

Languages

C

Security Score

85/100

Audited on Mar 17, 2026

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