SIMD macro assembler unified for ARM, MIPS, PPC and x86
A microkernel-based multiserver operating system written from scratch.
RTOS for Secure, Safe and Real-Time Systems
Reductively Architected Breviloquently Built Information Environment
64-BIt Operating System with Compiler
An open source OS written in assembly.
Complete, Fast, Accurate, Game Boy/CGB/SGB Emulator.
The CK 64-Bit Kernel Operating System