oRBIT: what I did to emulate Oric games was to disassemble 6502 code and transform it so it's legal C language (with macros for the opcodes). Then compile, debug, add real C wherever you need.
The same trick can apply to convert to 68000 asm of course. (for some parts it's even simpler)
Works very well. I have adapted 4 or 5 games like this (pure asm) for windows. But that's more emulator-like, and you still have graphical refresh issues.
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