A very simple 32-bit i386 based OS with a simple monolithic kernel. This OS is based in, among others, cfenollosa's wonderful os-tutorial (https://github.com/cfenollosa/os-tutorial).
This is a very simple OS that I have been developing to learn more about assembly and low level C. It is has been designed from scratch to work on an i386 system, taking full advantage of the extended 32-bit registers.
This project has been well commented, both on the assembler as well as the C code, and, as such, is meant for anyone who wants to learn about or learn how to make something similar. It also includes a debug make target to help debug the kernel.
This OS has been compiled with a custom compiled binutils, gcc and gdb to target the i386 arhitecture. The C code has been compiled with the -ffreestanding compiler flag to make it embedeable and, as such, this project has no dependencies.
It follows a monolithic kernel design written in C. As well as a 16-bit bootloader capable of booting with a BIOS.
A UEFI booting system, as well as other procesor architectures/platforms are and will not be supported.
The current kernel includes a input() function to make ir process a command, as well as a ACPI driver and IRS setup with custom IRQs to process a timer and keyboard keys with a standard US keymap.
This project is released under the MIT license.