Open Source C Operating System Kernels for Windows

************************************************************************************************************************ * The primary FreeRTOS repository is now in Git. Go to https://github.com/freertos for the latest FreeRTOS kernel and libraries. * Our support has moved to https://forums.freertos.org. ************************************************************************************************************************ FreeRTOS is a market-leading real-time operating system (RTOS) for microcontrollers and small microprocessors. Distributed freely under the MIT open source license, FreeRTOS includes a kernel and a growing set of libraries suitable for use across all industry sectors. Visit https://www.freertos.org for more information and other download options. Note about support/discussions forum: The FreeRTOS support forum has moved to https://forums.freertos.org. Please update your bookmarks and create new posts in the appropriate category in the new community forums.

The WSL2-Linux-Kernel repo contains the kernel source code and configuration files for the WSL2 kernel. If you discover an issue relating to WSL or the WSL2 kernel, please report it on the WSL GitHub project. It is not possible to report issues on the WSL2-Linux-Kernel project. Instructions for building an x86_64 WSL2 kernel with an Ubuntu distribution are provided. The number one way that we recommend you run Linux distributions is by installing Windows Terminal. Using Windows Terminal enables you to open multiple tabs or window panes to display and quickly switch between multiple Linux distributions or other command lines (PowerShell, Command Prompt, PowerShell, Azure CLI, etc). You can fully customize your terminal with unique color schemes, font styles, sizes, background images, and custom keyboard shortcuts.

The USB/IP Project aims to develop a general USB device sharing system over IP network. To share USB devices between computers with their full functionality, USB/IP encapsulates USB I/O requests into IP packets and transmits them between computers.

QP real-time embedded frameworks (RTEFs) provide lightweight, modern event-driven architecture based on active objects (actors) and hierarchical state machines. The matching QM model-based design tool and other host-based tools complement the QP frameworks by supporting graphical modeling, code generation, software tracing and unit testing for event-driven embedded software. Visit https://www.state-machine.com for more information. The QP RTEFs can run on bare-metal single-chip microcontrollers, completely replacing a traditional RTOS. The frameworks contain a selection of built-in real-time kernels (RTOS kernels), such as the cooperative QV kernel, the preemptive non-blocking QK kernel, and the unique preemptive, dual-mode (blocking/non-blocking) QXK kernel. Native QP ports and ready-to-use examples are provided for ARM Cortex-M (M0/M0+/M3/M4F/M7) as well as other CPUs. The QP RTEFs can also work with many traditional RTOSes and desktop OSes, such as Linux and Windows.

EmuTOS is a TOS compatible operating system for Atari ST series computers, and more. It is made from Digital Research's GPLed original sources and is a free and open source alternative to Atari proprietary ROMs.

The AROS Research Operating System is an effort to implement an Open Source and portable operating system that is compatible with AmigaOS(TM). Originally, it was meant as a direct reimplementation, but already has features not existing in AmigaOS.

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.

ToaruOS is a "complete" operating system for x86-64 PCs and experimental support for ARMv8. While many independent, hobby, and research OSes aim to experiment with new designs, ToaruOS is intended as an educational resource, providing a representative microcosm of functionality found in major desktop operating systems. The OS includes a kernel, bootloader, dynamic shared object linker, C standard library, its own composited windowing system, a dynamic bytecode-compiled programming language, advanced code editor, and dozens of other utilities and example applications. There are no external runtime dependencies and all required source code, totaling roughly 100k lines of (primarily) C, is included in this repository, save for Kuroko, which lives separately. Through out the project, ToaruOS has also attracted quite a few beginner OS developers who have tried to use it as a reference.

xone is a Linux kernel driver for Xbox One and Xbox Series X|S accessories. It serves as a modern replacement for Xpad, aiming to be compatible with Microsoft's Game Input Protocol (GIP). Installing Xone will disable the Xpad kernel driver. If you are still using Xbox or Xbox 360 peripherals, you will have to install xpad-noone as a replacement for Xpad.

This is the stress-ng upstream project git repository. stress-ng will stress test a computer system in various selectable ways. It was designed to exercise various physical subsystems of a computer as well as the various operating system kernel interfaces. stress-ng was originally intended to make a machine work hard and trip hardware issues such as thermal overruns as well as operating system bugs that only occur when a system is being thrashed hard. Use stress-ng with caution as some of the tests can make a system run hot on poorly designed hardware and also can cause excessive system thrashing which may be difficult to stop.

Providing an easy to use platform for running Ancient UNIX & BSD on windows.

The Zephyr Project is a new generation real-time operating system (RTOS) that supports multiple hardware architectures. It is based on a small-footprint kernel specially designed for use on resource-constrained and embedded systems. The Zephyr OS can be used for a wide range of applications: from simple embedded environmental sensors and LED wearables to sophisticated embedded controllers, smart watches, and IoT wireless applications.

GPL source for QNAP Turbo NAS

This project reimplements from scratch the RPL language made popular by HP programmable calculators, in portable C/C++. The main goal is to release a complete computing environment for various targets. There's currently 4 active targets: the HP 50g, HP39gs and HP40gs calculators and a PC simulator (see the downloads section!). Other ports are planned for the future.

Ficl is a lightweight, efficient language designed to be incorporated into other programs, including (especially) firmware based systems. Ficl includes a simple but capable object model that can wrap existing data structures. Applications: scripting,

DOS/32 Advanced DOS Extender is a drop-in replacement for the DOS/4GW DOS Extender and compatibles. Being fast, small and flexible DOS/32A can be used in many environments, from embedded systems to DOS emulators, by both developers and end users alike.

The objective of the TPM Emulator project is the implementation of a software-based TPM and MTM emulator as well as of an appropriate TCG Device Driver Library (TDDL).

AliOS Things was released at the 2017 Hangzhou Yunqi Conference. It is a highly scalable IoT operating system under the AliOS family for IoT. It was announced as open-source on GitHub on October 20, 2017. The latest version is AliOS Things 3.3. AliOS Things supports multiple CPU architectures, including ARM, C-Sky, MIPS, RISCV, etc. AliOS Things adapts layered architecture and component architecture. Alibaba's value-added and commonly used IoT components, including LinkSDK, OTA (safety differential upgrade), ulog (log service), uData (sensor framework), uDisplay (graphic interface), WiFi distribution network, etc. All modules exist in the form of components, configured through yaml, the application can easily select the required components. Unified VFS access mode, more standard application development mode. More comprehensive JavaScript and MicroPython light application development framework support.

Sulin is rolling donkey Gitlab: https://gitlab.com/sulinos Github: https://github.com/sulinos Telegram: https://t.me/sulinos powered by donkey team

The DEX Operating system allows for the dynamic reconfiguration and customization of various system services using concepts found in extensible operating systems. The ultimate goal of this operating system is to achieve zero static inter-module calls.

Committed to the development of fundamental ACPI (Advanced Configuration and Power Interface) components for Linux. This includes a generic ACPI table parser, AML interpreter, bus and device drivers, policy, user interface, and support tools.

SkyEye is a very fast full system simulator which takes llvm as IR of dynmic compiled framework.. It can simulate series ARM, Coldfire,Mips, Powerpc, Sparc, x86, TI DSP and Blackfin DSP Processor. Also can simulate multicore system by the multicore of host. The commercial support is provided by DigiProto Co. (http://www.digiproto.com)

Tools and plugins related to bart's PEBuilder

An easy to use Development Environment for OS developers to design, write, compile, test, and publish new or existing OS projects with ease.

TinyOS is an operating system for embedded sensors and networks. Versions 2.0 and later of TinyOS should be downloaded from www.tinyos.net.