INT 33 - MS MOUSE v8.10+ - ???                                                  
	AX = 012Eh
	BL = ???
Return: AX = 0000h (MS)
	AX = FFFFh (ATI Mouse v7.04)
Note:	not supported by Logitech driver v6.10
SeeAlso: AX=002Eh,AX=022Eh