1.44 floppy kit which uses the PSG for speed switching ?

[exxos]

It seems this was fleetingly discussed a few years ago with TOS patches. But my current work with the ST536 did result in some TOS patches to get the PSG to switch so things like FCOPY can use the DD/HD switching transparently.

My question is, where did this idea actually originate from ? And more to the point, I would assume they would have had to have been some AUTO folder program to enable that PSG switching feature ?


EDIT:

So my own tests seem to indicator it's just not possible to patch TOS in a way that the PSG method will work. Routines in TOS itself have to be patched. It's possible the FCOPY switch might have been related to the STacy but I have no idea.