VirtualXT is a IBM PC/XT (8088/V20) emulator that runs on modern hardware and operating systems. It is designed to be simple and lightweight yet still capable enough to run a large library of old application and games.

Browser version is avalible here.

• Intel 8088 or NEC V20 CPU
• Hardware CPU validator
• CGA/HGC compatible graphics
• Turbo XT BIOS 3.1 with extensions
• Keyboard controller with 83-key XT-style keyboard
• Serial port with Microsoft 2-button mouse
• Floppy and hard disk controller
• AdLib Music Synthesizer
• Ethernet adapter
• Real Time Clock
• PC speaker

The emulator is written in C11 and should be compiled with the Zig toolchain. You also need to have SDL2 installed on your system or pass -Dsdl_path=<path to lib> to the compiler.

git clone https://github.com/andreas-jonsson/virtualxt.git
cd virtualxt
zig build run -Drelease-fast

You can download pre-built binaries from itch.io. OSX and Linux users can also download VirtualXT using Homebrew.

brew tap andreas-jonsson/virtualxt
brew install virtualxt

If you want to embed the emulator or create a custom frontend you can find libvxt API documentation here.

A hardware validator was developed to ensure proper CPU behaviour. Some additional information about that can be found here.