No, I didn't realize that the HxC emulator could emulate DF0: as well as DF1: - let alone at the same time!
Ah well, I presume that it must be possible then - perhaps with a slight modification to the circuit or even a simplification - since I would have thought that it's more complicated to emulate DF0: and DF1: together than DF1: and DF2: because of dissimilarities in the interface.