amforth is an extendible interpreter on microcontrollers
a self-contained development environment for embedded systems.
Real-Time Embedded Operating System
cMIPS - an FPGA ready VHDL model for 5-stage pipeline, MIPS32r2 core
Embedded Operating System
Embedded Real-Time Operating System (RTOS)
A small operating system, compatible with MS-DOS, written in assemly
Project has been move to https://github.com/ciaa/Firmware
Light Weight & Customizable Assembly Compiler & Virtual Machine
Tarbox OS is a minimalistic 16 bit OS being developed in x86 Assembly.
Info-ZIP portable compression/archiver utilities
Cryptofon - a safe phone with integrated encryption.