System Analysis Software
hhuOS - A small operating system
NES/Famicom emulator based on FCE Ultra.
AO RTOS is small real time OS based on Active Object concurrency model
An Operating System with Interactive Graphical User Interface (GUI)
A tiny and simple research operating system
6800 Emulator runs on Teensy 4 processor
A cute and educational x86 OS
A roadmap to teach myself compiler dev, malware reverse engineering
An operating system inspired by brutalist design
OS-9/6809 compatible operating system for Tandy CoCo and Dragon
An open source filesystem library
An operating system written in C
OS bootable from Linux,Windows and others partitions as auxiliary OS
Haiway Edge Computing OS
Ping-Pong-like game in Assembly that works without OS
Mulithreading Arduno library
Written in pure ASM and Exode with cloud computing in mind.
An indie, hobby operating system
An educational operating system written in C#
Neptune is a kernel and operating system for x86 PCs.
An open source OS written in assembly.