Int 33 Fn 0032 - Ms Mouse V7.05+ - Get Active Advanced Functions [M]
AX = 0032h
Return: AX = active function flags (FFFFh for v8.10)
bit 15: function 0025h supported
bit 14: function 0026h supported
...
bit 0: function 0034h supported
BX = ??? (0000h) officially unused
CX = ??? (E000h) officially unused
DX = ??? (0000h) officially unused
Note: the Italian version of MS MOUSE v8.20 reportedly indicates that
functions 0033h and 0034h are not supported even though they are