INT 33 - MS MOUSE v7.04+ - GET/SET BallPoint INFORMATION                        
	AX = 0030h
	CX = command
	    0000h get status of BallPoint device
	    other set rotation angle and masks
		BX = rotation angle (-32768 to 32767 degrees)
		CH = primary button mask
		CL = secondary button mask
Return: AX = button status (FFFFh if no BallPoint) (see #03181)
	BX = rotation angle (0-360 degrees)
	CH = primary button mask
	CL = secondary button mask
Note:	not supported by the ATI Mouse driver which calls itself v7.04


Bitfields for BallPoint mouse button status:
Bit(s)	Description	(Table 03181)
 5	button 1
 4	button 2
 3	button 3
 2	button 4
 other	zero