Original Apollo 11 Guidance Computer (AGC) source code
A Serial Terminal Console for development on a remote (Forth) device
Realtime raytracer using SIMD on ARM, MIPS, PPC and x86
A cute and educational x86 OS
Real time preemptive embedded multi-thread kernel
a UNIX GUI to monitor Core i7 & Core 2 processors
cMIPS - an FPGA ready VHDL model for 5-stage pipeline, MIPS32r2 core
A small operating system, compatible with MS-DOS, written in assemly
a very fast full system simulator
Small 32-bits operating system
Tarbox OS is a minimalistic 16 bit OS being developed in x86 Assembly.