Open Source Assembly Software

ReactOS is an open source effort to develop a quality operating system that is compatible with applications and drivers written for the Microsoft Windows NT family of operating systems (NT4, 2000, XP, 2003).

PICSimLab is a realtime emulator of development boards with MPLABX/avr-gdb debugger integration. PICSimLab supports microcontrollers from picsim, simavr, uCsim, qemu-stm32, qemu-esp32, and gpsim. PICSimLab has integration with MPLABX/Arduino IDE for programming the microcontroller's boards. As the purpose of PICSimLab is to emulate real hardware it does not have any source code editing support. For code editing and debugging the same tools used for a real board should be used with PICSimLab, such as MPLABX, Arduino IDE, or VSCode with PlatformIO. PICSimLab supports several devices (spare parts) that can be connected to the boards for simulation. Such as example LEDs and push buttons for simple outputs and inputs and some more complex ones like the ethernet shield w5500 for internet connection or the color graphic display ili9340 with touchscreen. The complete list of parts can be accessed in the documentation. Documentation at https://lcgamboa.github.io/picsimlab_docs/stable/

The continuing development of the legendary VBA gameboy advance emulator.

PearPC is an architecture independent PowerPC platform emulator capable of running most PowerPC operating systems. It includes a JITC for x86-Processors.

ffdshow is DirectShow and VFW codec for decoding/encoding many video and audio formats, including DivX and XviD movies using libavcodec, xvid and other opensourced libraries with a rich set of postprocessing filters.

BerserkArch is a security-focused, performance-tuned Linux operating system (OS) based on Arch Linux, designed for developers, hackers, and technical users. A bleeding-edge, security-centric Arch-based Linux distribution crafted for hackers, developers, and nerds alike. Following the Arch Linux philosophy, it is designed to be highly customizable, allowing users to build their environment with only the components they need, rather than having a lot of pre-installed software like some other security distributions (e.g., Kali Linux). As an Arch-based distribution, it benefits from the rolling release model, providing users with the latest software versions and kernel updates. BerserkArch is a dist "designed to make you powerful" for specific use cases like reverse-engineering binaries and automating exploits, rather than being an easy-to-use distribution for general beginners.

C-BIOS is an open source BIOS for MSX computers. C-BIOS can be shipped with MSX emulators so they are usable out-of-the-box. This project aims to improve C-BIOS by fixing incompatibilities with the MSX BIOS and the development of a Disk ROM.

Syllable Desktop is a complete operating system that is easy to use, powerful, lightweight and extraordinarily fast and responsive. It has its own kernel, filesystem, GUI and applications. Syllable Server is a matching small and efficient Linux server.

JNode is a Java New Operating system Design Effort. JNode is a simple to use and install Java operating system for personal use on modern devices. Any java application runs on it, fast and safe. See our homepage for additional information.

Clicker is a project for a Multitasking Open-source operating system written from scratch. based on a modular micro kernel. We want to explore new way of designing and using OSes :) [newz: PCI, NE2K and VBE]

Software Development Kit for the Nintendo(tm) Gameboy Advance(tm) based on GCC.

This project is a partial overhaul of the Arduino hardware library, i.e. the main source files that make the core library. The intent is to reduce the overhead introduced by the initial library and eliminate the numerous function calls whenever direct register access is possible.

Haiku is an open-source operating system currently in development designed from the ground up for desktop computing.

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.

TV software package for viewing TV, Teletext (TTX), Electronic Programme Guide (EPG), recording movies and hearing radio with BT8x8 based TV cards on the Windows plattform.

Agnix is an educational, network operating system kernel. It is ideal starting point to learn about operating systems. The main goal of the project is to provide a network kernel fully compatible with the Linux Kernel in the system call layer

FOCA (Fudeba: Optimizer, Compiler and Assembler) is a free development system for the MSX architecture (Z80-based), aiming to provide developer support for the Uzix operating system.

MiniTAK is a small operating system for x86 computers to run in processor real mode. One of the main goals in designing and developing this operating system was to be fully compatible with MS-DOS operating system and its application programs. To minimize the size of this operating system, it is completely written in assembly language and can boot on any 8088 compatible processor. This project is an attempt to develop an optimized operating system which can be used to replace MS-DOS, adding new modern features. This operating system is completely written by me in 2004, as a result of about 5 years full research and development. And now in 2014, I want to publish it to the world. This operating system supports FAT12 file system, and allow to run many MS-DOS applications.

XAOS is a brand new operating system written from scratch. The operating system currently runs on Intel 386+ and compatible processors.

JX is a flexible Java Operating System that can be customized for different execution environments. It provides separate protection domains for operating system components. Each protection domain may have its own execution environment.

Menuet is a Real-Time, graphical OS, written in asm, and for 32 bit asm programming.

This program emulate the Sega's System 16 arcade boards used by many Sega arcade game between 1987 & 1989 like Shinobi, Altered Beast or E-Swat. There is more than 20 existing System 16 games. The System 16 board uses a Motorola 68000 cpu at 10Mhz for the main program and a Z80 and on YM2151 for the sound. The actual version of the emulator emulate many more than the single System 16 board because now you can play with System 18 games like Shadow Dancer, with pre-System 16 games like Quartet II and even with some dual 68000 games like Hang-On and Space Harrier. This program is an emulator and it needs roms to run, please, don't e-mail be to get roms, i'll ignore your requests !

IDE for Fasm Flatassembler

HALT is a developer friendly programming and simulation environment for the Motorola 680x0 family of processors. Targeted at academia, it is centered around ease of use and utility.

A command line calculator capable of complex arithmetics.