XRoar - Dragon & CoCo emulator
XRoar is a Dragon emulator for Linux, Unix, Mac OS X and Windows. Due to hardware similarities, XRoar also emulates the Tandy Colour Computer (CoCo) models 1 & 2. More features.
Download
Source code version 0.35, released 2018-07-27: xroar-0.35.tar.gz. Older versions.
Debian snapshot builds of this and other software are available for
amd64 and i386 architectures. Add the following lines to your
/etc/apt/sources.list, run apt-get update, then
apt-get install xroar.
deb http://www.6809.org.uk/debian testing main deb-src http://www.6809.org.uk/debian testing main
Ubuntu snapshot builds of this and other software are available in this PPA on Launchpad.
Windows binaries built using MinGW: 64-bit Windows, 32-bit Windows
Git repository:
git clone http://www.6809.org.uk/git/xroar.git
Older builds: Mac OS X 10.6+ (Intel), Mac OS X 10.4, Nintendo DS, GP32
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.
Firmware ROM images are required to usefully run this emulator. If you have difficulty extracting these from your real Dragon or CoCo, dumps may be available from the Dragon Archive.
asm6809 is a 6809 assembler that can generate machine code to run on the Dragon.
Want a Dragon in your browser? Here's a limited but functional Flash version of XRoar. Needs Flash 10 and a pretty fast computer.
Notes for version 0.35
- New NX32 RAM cartridge [by Tormod Volden]
- New option -ao-gain specifies volume in dBFS
- New CAS CUE support
- New -C option allocates debug console in Windows (must be first option)
- New MOOH RAM + SD card cartridge [by Tormod Volden]
- Support JVC/DSK files with non-standard sectors per track
- MC6809: Assume certain page2 illegal ops are same as page0 [David Ladd]
- WD279x: implement multiple-sector type 2 ops
- New SN76489 sound chip support
- New Games Master Cartridge support (-cart gmc)
- Use SDL2 audio queueing interface where -ao-fragments > 1
- Optional --disable-simulated-ntsc configure option for speed (e.g., for Raspberry Pi)
- HD6309: Fix interrupt handling during TFM instruction [David Ladd]
For version change history, see the ChangeLog.
Known issues
- Possible frame rate issues on some platforms.
- Build of latest version for Mac OS X confirmed broken. Nothing to test on, so fix may be a while coming.
Redistribution
License: GNU GPL version 2 or later <http://www.gnu.org/licenses/gpl-2.0.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 and/or libsndfile.
- Local copy of SDL source code: SDL2-2.0.4.tar.gz.
- Local copy of libsndfile source code: libsndfile-1.0.27.tar.gz.
Ports
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.
CrashSerious has ported version 0.24 to the PS3. Download the PS3roar binary, or clone the PS3roar git repository. There's an announcement page with discussion here.
drHirudo has ported XRoar to AmigaOS 4 (!), available here.
Stefan Haubenthal has uploaded a build for MorphOS to aminet.
ZX-81 has 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.
Ron from DCEmu started a port to the Dreamcast called DragonDC. The last post about it I can find was from the 12th April 2007.
Similar projects
MAME emulates a variety of old computer hardware, Dragon included. Source available.
T3 and PC-Dragon, two DOS-only emulators written by Paul Burgin. Source code is available for PC-Dragon, but redistribution of modified copies (of the source) is not permitted, amongst other restrictions. T3 is closed source.
Vcc, a Windows-only CoCo 3 emulator. Does not emulate CoCo 1/2 (beyond what compatibility a CoCo 3 had) or Dragon. Recently open-sourced (August 2015), though at time of writing there's no easy way to clone the entire project at once.
