Ahhh, thank you, very interesting indeed, and the correction of the Motorola number also made a search of this forum pop up: Access Virus emulator on Zynthian?
So I can see what I think is the point - the increased performance of RPi5 might allow this DSP56300 to run on Zynthian, and of course @jofemodo 's work on Bookworm-64bit might yield enough performance as well. With both - Wow!
I’ll have a look at what my Alesis Micron-Ion are running, I remember it was some kind of Motorola-NXP Coldfire processor. I would certainly like to have those in Zynthian.