Open Source Assembly Software for MS-DOS

Info-ZIP portable compression/archiver utilities (Zip, UnZip, WiZ, etc.)

Open-source, free, multi-platform BASIC compiler, with syntax similar MS-QuickBASIC (including the GFX statements), that adds new features such as pointers, unsigned data types, inline assembly, a pre-processor and many others.

GRUB for DOS is the dos extension of GRUB. It enables dos users to run the configuration console directly in real mode. The project also contains an utility called WINGRUB, an GUI intends to help configuring and installing GRUB in the WINDOWS environment

Mikmod is a module player and library supporting many formats, including mod, s3m, it, and xm. Originally a player for MS-DOS, MikMod has been ported to other platforms, such as Unix, Macintosh, BeOS, and Java(!!)

ZSNES is a SNES/Super Famicom emulator for x86 computers. It runs on Windows, MS-DOS and Linux/FreeBSD and supports mode 7, sound, Super FX, and a lot more.

IMPORTANT NEWS: UPX has moved to GitHub https://upx.github.io ========================

JWasm is a Masm-compatible assembler. It supports 16-, 32- and 64-bit code, instructions up to AVX and various output formats. It's written in C.

MMC is a commander-style media player for Windows, with native, hw accelerated video playing and translucent gui. Mpxplay is a console audio player for DOS and Win32 operating systems. x264vfw, x265vfw and xAV1vfw are video for windows encoder and decoder codecs, useful with VirtualDub.

The Doszip Commander is an LFN-aware TUI file manager (NC clone) with built-in Zip and UnZip for DOS and Windows.

FreeDOS is an open source DOS-compatible operating system that you can use to play classic DOS games, run legacy business software, or write new DOS programs. Any program that works on MS-DOS should also run on FreeDOS.

Electronic Arts Inc. has released the source code for Command & Conquer Red Alert under the GPL V3 license below, with additional terms at the bottom. This ZIP file is the full repository snapshot and includes source code for Command & Conquer Red Alert. This release provides support to the Steam Workshop for the game. Command and Conquer: Red Alert is a classic real-time strategy (RTS) game developed by Electronic Arts, with its source code available on GitHub for archival and preservation purposes. This repository offers tools to assist with compiling and running the game on modern platforms. It supports Steam Workshop integration, and while not currently accepting contributions, the repository serves as an open-source preservation project for the game. Developers interested in restoring the game or adapting it for new environments will find helpful dependencies and build tools outlined in the repository.

A portable version of the ARJ archiver, available for a growing number of DOS-like and UNIX-like platforms on a variety of architectures.

Etherboot is Open Source code for creating boot ROMs for network booting x86, AMD64, Itanium, Hammer, Hyperstone and ARM (noMMU) platforms.

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.

CuteMouse is a DOS based mouse driver, fully written in assembly language. It's optimized for size (and speed) to allocate as small as possible amount of your precious 640KB RAM. It currently supports serial and PS/2 mice and, if BIOS support present an

Smart BootManager is an os independent BootManager which has easy to use interface and many other features. The main goals of SBM are to be absolutely OS independent, flexible and full-featured. It has all of the features needed to boot a variety of OS.

basE91 is an advanced method for encoding binary data as ASCII characters. It is similar to UUencode or base64, but is more efficient. The overhead produced by basE91 depends on the input data. It amounts at most to 23% and can range down to 14%.

This is HimemX - the open-source XMS memory manager of FreeDOS. Uses unreal mode when possible and has a very low conventional memory footprint. Got any patches? Noticed any bugs? Please report your findings on the FreeDOS mailing list: freedos-user@lists.sourceforge.net

The netboot project allows booting a diskless PC over a TCP/IP based network using standard protocols like BOOTP, DHCP and TFTP. It is able to boot Linux, FreeBSD, multiple DOS variants (including MS-DOS, PC-DOS, PTS-DOS, OpenDOS, NovellDOS, FreeDOS)

FileSystem is an OPENSOURCE program for advanced disk management with built-in drivers for PATA IDE Hard Disks and DVD/CDROM Drives, USB Mass Storage Drivers. Implemented file systems : FAT32 / ISO9660 / EXT2. It can be compiled for DOS, LINUX, WIN32

A MAME and MESS port with an advanced video support for Arcade Monitors, TVs, and PC Monitors. It also contains a bootable Linux LiveCD/USB, a frontend with animated MNG/MP3 snapshots, a rom manager, and recompression utilities for compressed files.

Glide is a library for using 3dfx hardware. This project will be the public repository for Glide.

FakeNES is a highly portable, Open Source NES and Famicom emulator. It runs on all modern operating systems and has an actively maintained DOS port for enthusiasts. Support for phones and other mobile platforms is under development. The majority of the project is entirely original code released under the zlib/libpng license. Contributed and third-party code is included under GNU licenses.

JustEmpire and TEmpire (Tiny Empire) are two Empire-derivative games based (very!) loosely on Walter Bright's original Empire concept (classicempire.com), using JustBasic (justbasic.com) and Borland Turbo C/C++ (bdn.borland.com/museum). Others possible.

IMYplay is a player for iMelody (IMY) ringtones / files (https://en.wikipedia.org/wiki/IMelody). IMYplay can use the following outputs to produce sound: 1. The Allegro game library (http://alleg.sf.net), 2. SDL (Simple DirectMedia Layer; http://www.libsdl.org), 3. ALSA (Advanced Linux Sound Architecture; http://alsa-project.org), 4. OSS (Open Sound System), 5. Libao (http://xiph.org/ao), 6. PortAudiov19 (http://www.portaudio.com), 7. PulseAudio (http://www.pulseaudio.org), 8. JACK1/JACK2 (http://jackaudio.org), 9. GStreamer (http://gstreamer.freedesktop.org), 10. PC-Speaker (at least Linux and DOS). It can also: - convert IMY ringtones to MIDI files, - convert IMY ringtones to WAV files, - write raw samples to an output file, - execute an external program on each note. See the project homepage https://imyplay.sourceforge.io and the project Wiki in the menu above.