ChibiOS/RT is a free and efficient RTOS designed for deeply embedded applications. It offers a comprehensive set of kernel primitives and supports many architectures: ARM7, Cortex-M0, Cortex-M3, Cortex-M4, PowerPC e200z, STM8, AVR, MSP430, ColdFire, H8S, x86.
Message passing microkernel-based Operating System for ZX Spectrum +3e
This project is an attempt to design an message passing microkernel-based Operating System for the ZX Spectrum +3e computer equipped with ZXMMC mass storage device. It was made mostly for PoC purpose.
Cooperative Linux is the first method for optimally running Linux on Windows and other operating systems natively. It is a port of the Linux kernel and support code that allows it to run cooperatively without emulation along with another operating system.
AVR32-FreeRTOS project is dedicated to the port of the FreeRTOS real-time kernel to the Atmel AVR32 32-bit AT32AP700x processor familly . For uc3 version port of the FreeRTOS, please check www.freertos.org !
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Micro-80 aims to simulate a Z80 homebrew computer down to the bare metal: 64K RAM, ADM-3A terminal, parallel port, serial port and...3.5" 1.44MB floppy drive?!
MkLinux: Linux at Mach 3
MkLinux is a port of Linux to the Mach 3 MicroKernel. Its home page can be found at http://www.mklinux.org and its primary ftp site is ftp://ftp.mklinux.org. This site is for bug tracking & other administrivia.