I can only hope this man plans on sharing either the emulator or his knowledge. This is my final Holy Grail!
From Translations:
"Star Rider Emulator in FreeBASIC, now with video background."
"The background video is working, but it will ?not? sync. Solved the "glass bottom", there remains the "variable width" for turns on curves. The video runs at 50 fps in FreeBasic"
EDIT: I am in contact with the author and he tells me that it is running on his own 6809 emulator and 6821 emulator and it IS open source! I am currently awaiting a reply about getting it.
PLEASE, Don't harass this guy and scare him off!!!!
Anything I get will go to MAME and be credited to him.
EDIT X2: I now have the code!!!!!!!!!!!!
BTW: He is the author of an existing MAME driver and seems to be pleased if this were to be added.