2 programming questions already asked in CSAP but have not had much success there... Hope they will have more there !
1) Does someone knows what the $ffff860e-located WORD register is for? It is written to as a word value in my TOS 4.02 (Falcon) ROM.
It appears only in Aura's register listing ((v0.4, 11/4/93, is this one the last?) with no comments whatsoever (and ICYW it is not in the Compendium).
2) Is it possible to READ the bit of the YM-register giving the selected side of the floppy drive? It was not clearly stated in docs I have...