fwiw Team Europe asked me to look at the 1MB dump you made of the Space Invaders thing.
I was unable to find boot vectors for any CPU I recognized, and based on videos of the thing I've seen running I'm not entirely convinced there's enough data in there for the games on offer, especially the frontend parts and sound (or at least i couldn't find much that looked interesting)
It doesn't look like the SunPlus type CPUs used by VSmile, it doesn't look like 6809 based on the lack of boot vectors at the end of any blocks of code/data (or any CPU that requires that) It doesn't look like ARM, infact I couldn't find anything that seemed like boot vectors or interrupt vectors, so I'm not sure the dump is the correct size, or if there's simply missing data (maybe internal rom on the CPU die) or if I'm simply failing to identify it properly. Basically I could find nothing to go on in the dump.
Maybe somebody else on Mamedev can properly identify it and assess if there's anything missing, it doesn't look encrypted as there's clearly plaintext etc. in there, but I haven't a clue what CPU family they're actually using.
