INT 33 - MS MOUSE v7.01+ - GET SCREEN/CURSOR MASKS AND MICKEY COUNTS            
	AX = 0027h
Return: AX = screen-mask value (or hardware cursor scan-line start for v7.02+)
	BX = cursor-mask value (or hardware cursor scan-line stop for v7.02+)
	CX = horizontal mickeys moved since last call
	DX = vertical mickeys moved since last call
SeeAlso: AX=000Bh