Background: I have been working on improving the timing of MAME's Dragon (and CoCo) emulators, and Ciaran / sixxie was kind enough to forward me sorchard's tmgtest_v1_3. It has been invaluable. The Dragon timing in my private MAME builds is a fair bit better now, and the work to get there would have been impossible without these tests. So a big thank you to Stewart! (Still a way's to go to before MAME reaches XRoar's level of compliance, though

Thanks,
Dave