INT 33 - MS MOUSE v6.0+ - SAVE DRIVER STATE

	AX = 0016h
	BX = size of buffer (see AX=0015h)
	ES:DX -> buffer for driver state
Note:	although not documented (since the Microsoft driver does not use it),
	  many drivers appear to require BX on input
SeeAlso: AX=0015h,AX=0017h