[bobsgame]

I wonder whether they still have the Golf source code or patched the motion control support into an existing ROM through disassembly.

[dave84]

Most likely the emulator will translate the motion to old school button input and the ROM is unmodified.

I'd imagine that if they have the source that it would be 6502 assembly anyway.

[derefr]

With old-world (and modern low-level embedded) programming, the "usefulness" in having source code came more from having comments and non-stripped symbols. Reverse-engineering is still necessary even to get (readable) ASM.