If someone can determine why it's failing in MAME then I'd be happy to fix it!snarkhunter wrote: ↑Thu Jan 02, 2020 2:33 pmHello,
... I'd say this is because XRoar is a dedicated Dragon emulator that provides state of the art low-level emulation, whereas MAME is more general-purpose (and much older, too).
MAME has clearly been around much longer than XRoar, but to say it's older is unfair as it has monthly releases and the code base is continually modernised to keep up with the latest coding standards.
This is rather harsh and not true! The Dragon driver is considered working, so if there's an issue it needs identifying and reporting so that it can be corrected.