Awesome Open Source
Awesome Open Source


I'm in the process of transferring the entire operating system code to the C language, so the development speed of Cyjon will slow down a bit :)

Cyjon (workname)

A simple, clean, multi-tasking operating system written in pure assembly language for 64-bit processors from the AMD64 family. Only ~64 KiB of size :)


If possible, please run Qemu on GNU/Linux - performance against MS/Windows is overwhelming ;)

Right-clicking on the desktop will open the Menu. To move the window around the screen, hold down the left ALT key.



  • 32 MiB of RAM (for Full HD resolution)
  • keyboard and mouse at PS2 port


  • network controller Intel 82540EM (E1000)

Compilation/Exec (GNU/Linux):

[email protected]:~/Cyjon$ chmod +x
[email protected]:~/Cyjon$ ./
[email protected]:~/Cyjon$ ./

Compilation/Exec (MS/Windows):

C:\Cyjon> make.bat
C:\Cyjon> qemu.bat

Alternative Project Comparisons
Related Awesome Lists
Top Programming Languages
Top Projects

Get A Weekly Email With Trending Projects For These Topics
No Spam. Unsubscribe easily at any time.
Kernel (21,819
Gui (16,238
Operating System (15,399
Bootloader (2,410
Asm (1,766
Window Manager (973
Nasm (709
Assembly Language (498
X86 64 (492
Amd64 (173
System Programming (121
64 Bit (117
Wm (64