Info-ZIP portable compression/archiver utilities (Zip, UnZip, WiZ, etc.)
FreeDOS is a free DOS-compatible operating system.
FreeDOS is a complete, free, DOS-compatible operating system that you can use to play classic DOS games, run legacy business software, or develop embedded systems. Any program that works on MS-DOS should also run on FreeDOS. It doesn’t cost anything to download and use FreeDOS. You can also share FreeDOS for others to enjoy! And you can view and edit our source code, because all FreeDOS programs are distributed under the GNU General Public License or a similar open source software license.
IMPORTANT NEWS: UPX has moved to GitHub https://upx.github.io ========================
TUI file manager (NC clone) with built-in Zip for DOS and Windows
The Doszip Commander is an LFN-aware TUI file manager (NC clone) with built-in Zip and UnZip for DOS and Windows.
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.
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%.
AiR-Boot is a x86 boot-loader that resides completely in track 0 of the harddrive. It‘s also independent of any OS, features a BIOS-like built-in setup, is localized to German, Dutch, French, Italian, Russian (including Cyrillic) and Swedish.
HX DOS extender
I'm preserving Japheth's MS-DOS extender. It features 16bit, and 32bit capabilities with the ability to run 16bit OS/2 program, and 32bit Win32 code on Vanilla MS-DOS.
ReSizeable RAMDisk for FreeDOS (and other DOS). SRDISK is fast and able to use over 32M of XMS and EMS memory. The size of disk can be changed without rebooting or loss of content. Diskcopy compatible.
Convert PSID and RSID files into C64 executables
PSID64 is a program that converts PSID and RSID files into C64 executables. This allows users to play PSID and RSID files (originally used by the PlaySID program) on a real Commodore 64 computer or emulator such as VICE.
BDOS is a 16 bit educational operating system written in NASM.
BDOS is aimed at 80x86 PC. The goal of this project is to help beginner os developers who would like to develope their os in assembly.It is also among the goals of this project to make a little functional cli operating system to perform basic operations.BDOS is designed to run of a single floppy disk and to provide much functionality in least space.
NedoPC SDK is a set of development cross-tools (compilers/emulators) to develop system and user software (and hardware) for some old home minicomputers and new "homebrew" hobbyist-friendly computers (including development of that kind of computers)
View, manipulate, analyze (LS fit, SVD, FT), and make figs of, spectra
Program for viewing, editing, manipulating, and analyzing absorbance spectra. Simple arithnetic includes making linear combinatins of up to 10 spectra. Advanced functions include fitting spectra as LC of standard basis spectra, singular value decomposition, Fourier transform, differentiation, integration, global fitting of 3D titration and kinetic data. Graphics features allow composing Figures and export to postscript files which can be converted to pdf, imported into photoshop for rasterization, or used in page design software like Illustrator.
uDOS is a free operating system built on the FreeDOS kernel with DJGPP. uDOS provides an integrated suite of features inluding Perl, Python, etc., as well as a Watt-32 based networking environment and ELF library support. Can be run live from CD image.
Ms Dos port with slopes 3d floors true3d demo compatibility fast speed
Dos Doom with 3d floors, slopes, destructible architecture, demo compatibility 1.9, fast speed youtube https://goo.gl/pbNybV Requirements: 486DX, 4MB RAM Win95, 8MB Dos(run -ram8mb parm) https://goo.gl/3EFVBg Recommended: 486DX4 100MHz, 16MB RAM https://goo.gl/IWGLkQ Run on Dos,Win9x, XP 7 32 bits, Dosbox Turbo Android requires Dosbox: Win 64bit or WinXP w/ some video drivers https://goo.gl/FE6rRF Bugs: command line needs one space after wad or other parm to work right: cdoom -file s4 -warp 1 save config fault sometimes, glitches in rendering slopes due to fixed point usage, line of sight bullets error on slopes,sprites in multi 3dfloors sometimes render wrong similar to duke nukem 3d quake heretic hexen vavoom zdoom gzdoom but not compatible,only doom2 doom run Thanks:id software for original doom code https://www.idsoftware.com MBF authors,Vladimir Arnost for muslib 1.80: http://www.fit.vutbr.cz/~arnost/welcome.html
FreeOS/1 is a Free, Open Source, FreeDOS based Free and Open Source Alternative OS, with open source Microsoft Windows compatibility using HXDOSExtender KernelEx,and ReactOS source code. FreeOS/1 will include new technologies and will be easy to use
Plays iMelody (IMY) files using many sound systems
IMYplay is a player for iMelody (IMY) files. It uses many sound systems to play sound and allows converting the IMY file to a MIDI file.
David Ashley's C compiler has now been GPL'd. This includes the full source, some demo programs, along with some minor changes... ACC builds 32bit exe's using TRAN's PMODE dos extender for MS-DOS.
OASML is an Open-source Assembly Library which targets 8086 CPUs and contains hundreds of procedures and functions to make programming in Assembly easier. Every single line of the library is commented.
el proyecto A.T.L.D. se trata de crear una distribucion basada en software libre funcional moderna destinada en ordenadores limitados pentuim estara basado usando una distro kernel linux y otra micronucleo match con hurd atld es 100 % software libre
This is a tool collection for Legacy BIOS Engineer. Inclued, I2C Read, Write tools, Super I/O Tools, HDD Tools, PCI Scan Tools, NMI Int Hooker, INT 15h hooker, INT 13 Hooker, Keyboard scan code reader, FWH/LPC BIOS ROM programmer/eraser.
FM synthesis file player
DRO Magic is a utility that reads files in the DRO version 1 format, and plays through them in DOS on the YM3812 sound chip that came with the Adlib and Soundblaster sound cards. It also works in Dosbox.
Display DOS version and OEM information.
GETVER is a simple tool to display DOS version and related information (like ROM flag and OEM name), that DOS reports it to DOS application. This tool was created because output of "ver" command sometimes didn't reflect what application really knew from querying DOS system. Especially on Microsoft Windows or non-Microsoft DOS systems.
i2ctools is a linux-lm_sensors-like utilities contain i2cget.exe and i2cset.exe, but run under OLD MS-DOS environment and written in Assembly(MASM-6.11) Now they work on Intel ICH-x series Chipsets
BASIC Compiler and Interpreter
John's Mutant contains several projects. The current project is a Minimal BASIC compiler for Linux systems using AMD64 compatible CPUs. You can download the MinimalBASIC compiler source in the Files section.