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Speaking of emulation-related crapfests, I'm in the middle of one. I have a core for the STmicro ST6228 MCU. It's straightforward, but remarkably limited. It was generally only found in electromechanical or similar arcade titles. It works "great" for the one game using it.
Great is in scare-quotes due to the fact that this one Italian LED-based game, "Catherine Wheel", will need serious tracing out of the PCB, or some form of schematic, to figure out how it works. Now I have a dump of an ST6225-based EM basketball game.
The issue here is that the documentation for the ST62xx series makes it pretty clear that they're almost identical, including fetching the reset vector. But while cwheel boots to a valid-looking spot, the basketball game starts in the middle of a function and quickly croaks.
Can't be due to endianness, since the ST62 series uses byte addressing, and the EM basketball game seems to have perfectly sensible code other than the boot vector. Just FML.
Oh, damn it. They're not "vectors" per se, they're literal jump instructions.
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