XRoar, a Dragon and Tandy 8-bit computer emulator
XRoar emulates the Dragon 32/64; Tandy Colour Computers 1, 2 and 3; the Tandy MC-10; and some other similar machines or clones. It runs on a wide variety of platforms. More features.
Download
Source code version 1.9, released 2025-08-30: xroar-1.9.tar.gz. Other downloads.
Debian snapshot builds are available in the Apt repository.
Ubuntu snapshot builds are available in this PPA on Launchpad.
Mac OS X binaries: 64-bit x86 Mac OS X (built under 10.13)
Windows binaries (cross-built using MinGW):
- 64-bit Windows: ZIP archive, MSI installer
- 32-bit Windows: ZIP archive, MSI installer
Git repository:
git clone https://www.6809.org.uk/git/xroar.git
The manual is available in these formats: PDF and HTML. See Getting started for a quick guide to running XRoar. See Building from source for instructions on building from source. Be sure to read about any Recent changes.
Some loose notes about cross-compiling for Windows using Debian: Building XRoar for Windows.
Firmware ROM images are required to usefully run this emulator. If you have difficulty extracting these from your real Dragon, CoCo or MC-10, dumps may be available from the Dragon Archive or the Color Computer Archive.
Important: since version 1.3, the floppy disk image write-back behaviour has changed. See Recent changes in the manual.
asm6809 is a 6809 assembler that can generate machine code to run on the Dragon.
Want a Dragon in your browser? Try XRoar Online.
Notes for version 1.9
- Trap-triggered traces now include trap instruction
- SDL: don't disable screensaver in windowed mode [Grégori Harbs]
- Windows: explicitly map Pause in automatic keyboard lang [Grégori Harbs]
- Include profile for Prológica CP-400
- SAMx8 support (specify -ram 512 for a Dragon 64)
- Fix second mouse button joystick mapping [Jim Mullis]
- Fix CoCo 3/GIME IRQ issues highlighted by Tim Lindner's test code
- Fix -ram-init set
Please note that the GTK+ 2 UI is is deprecated in favour of GTK+ 3. Debian 13 ("trixie") has launched without the required GtkGLExt packages, so I'm unlikely to continue trying to keep it working.
For version change history, see the ChangeLog.
[n] - reported by,
[by n] - contributed by,
[with n] - developed with.
Redistribution
License: GNU GPL version 3 or later <http://www.gnu.org/licenses/gpl-3.0.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Binary packages may be linked against SDL.
- Local copy of SDL source code: SDL2-2.30.11.tar.gz.
Ports
All of these ports are quite old now, predating the 1.x releases and thus not supporting Tandy CoCo 3, MC-10 and various other things.
Android APK: xroar-0.31.1-1.apk
Android port contributed by Tormod Volden. For more information see its readme.txt. For patches, etc., check out Tormod's website.
drHirudo ported XRoar to AmigaOS 4 (!), available here.
Stefan Haubenthal uploaded a build for MorphOS to aminet.
ZX-81 ported version 0.19 to the Sony PSP and GP2X handhelds. Check for "Tandy Coco" in the list of categories on ZX-81's web site.