The term x86 denotes a family of backward compatible instruction set architectures based on the Intel 8086 CPU.
The x86 architecture is the most common instruction set architecture since its introduction in 1981 for the IBM PC. A large amount of software, including operating systems (OS's) such as DOS, Windows, Linux, BSD, Solaris and Mac OS X, function with x86-based hardware.
In this course we are not going to design an operating system for the x86-64 architecture but for x86-32, thanks to backward compatibility, our OS will be compatible with our newer PCs (but take caution if you want to test it on your real machine).
The goal is to build a very simple UNIX-based operating system in C++, but the goal is not to just build a "proof-of-concept". The OS should be able to boot, start a userland shell and be extensible.
The OS will be built for the x86 architecture, running on 32 bits, and compatible with IBM PCs.
Code in C++
x86, 32 bit architecture
Boot with Grub
Kind of modular system for drivers
Kind of UNIX style
ELF executable in userland
Modules (accessible in userland using /dev/...) :
EXT2 (read only)
"Can" run a shell or some executables (e.g., lua)