Z80 shared library including some nice test-projects
Universal server
16 bit real mod minecraft clone running in bios
AO RTOS is small real time OS based on Active Object concurrency model
a self-contained development environment for embedded systems.
Alternative operating system for x86 computers
An operating system written in RTL
Reductively Architected Breviloquently Built Information Environment
An operating system for tenputer
Quantum Leaps (QPC) DPP example with LWIP on STM3220G eval board
Light Weight & Customizable Assembly Compiler & Virtual Machine