Nothing interesting to report. Since returning from holiday I've converted the high-score entry code and course map screen. When I used to develop games professionally, I didn't enjoy working on these elements and I can't say the feeling has changed much!
Next I'll move onto some of the remaining attract mode code. Once I've tied up some loose ends, I'll release a playable tech demo in order to gather bug reports. And that will be a little more interesting.
The core game engine is now ported, apart from the end sequences, test mode and sound code. We're getting close...