SIMD-accelerated libjpeg-compatible JPEG codec library
Open Watcom C/C++ compilers and tools Fork
C compiler and dev kit for the z80 with assembly language libraries.
A multi-threading framework using a prime sieve to do work
A cute and educational x86 OS
NES/Famicom emulator based on FCE Ultra.
A multi-threaded-style OS for the Spectrum +3
An open source filesystem library
OS bootable from Linux,Windows and others partitions as auxiliary OS
Mulithreading Arduno library
A C Compiler/Editor for Retro 6809 Machines (Colour Computer/Dragon)
An indie, hobby operating system
AO RTOS is small real time OS based on Active Object concurrency model
Embedded Real-Time Operating System (RTOS)
A new OS
Hard Real-Time OS compliant to the Osek/Vdx standard.
The Arcrascent Operating System