Hallo Mark,
also mit dem "bald" wäre ich mir nicht so sicher: das ist ein komplett neuer Treiber (und auch noch eine neue Firma) - ich weiß nicht, ob ich den in meiner alten MESSUI-Version überhaupt noch zum Laufen bringe.
Ja, das Problem war diese rollierende Anzeige während des Rechvorgangs, da muß man den Zug natürlich über die Brett-LEDs ablesen und nicht aus dem Display! Wundert mich, daß ich das damals beim Schreiben des Plugins übersehen habe. Aber zum Glück gibt's ja so fleißige Tester wie Dich.
Danke für die Info - geändertes Plugin ist im Anhang ...

Grüße,
Franz

By the way, I was hoping that Tryom Electronic chess had similarities with SciSys's early F8 chesscomputers (like Chess Traveler/Pocket Chess). But the rom isn't similar to it.

The reason I hoped for it, is because I assume Tryom was affiliated with SciSys.
See here: https://www.chessprogramming.org/MCC_1980
Tryom represented SciSys/Novag for the Super System III.

And also this one:
https://patents.google.com/patent/US4223893
It's a patent for a backgammon computer with sensory board (filed in 1975! 1 year after the 6800 cpu was introduced)
After Tryom went defunct, the rights were transfered, see: "1983-08-15 Assigned to SCISYS-W, LTD."

Hi hap,

in your previous 'ssystem3' driver there was a hack (or workaround) that you have removed yesterday.
Is this hack now obsolete because of any other recent changes in the MAME system (6522?), or is it also no longer necessary even in the older driver versions (0.220-0.245)?

Regards,
Franz

It's because of recent changes to the 6522 chip emulation.

Ok, then I'll keep your hack in my versions - thanks!