SIMD macro assembler unified for ARM, MIPS, PPC and x86
A cute and educational x86 OS
AO RTOS is small real time OS based on Active Object concurrency model
C-BIOS is an open source BIOS for MSX computers.
A microkernel-based multiserver operating system written from scratch.
NES/Famicom emulator based on FCE Ultra.
English Examples Projects for HC6800EM3 MCU devkit
Indipendent distro uses inary package system. Sulin is roolling donkey
An open source filesystem library
OS bootable from Linux,Windows and others partitions as auxiliary OS
Prolog to C compiler with runtime for DOS, Windows and Raspbian
RTOS for Secure, Safe and Real-Time Systems
Real-Time Embedded Operating System
An operating system written in RTL
Multi-System Emulator
A Debug style tool for OS Free systems