INT E0 - DR Multiuser DOS - "A_STATOUT" - GET OUTPUT STATUS OF AUX DEVICE
	CL = 08h
Return: AL = status
	    00h not ready
	    FFh ready for output
Desc:	determine whether the current AUX device is able to accept more output
SeeAlso: INT E0/CL=04h,INT E0/CL=07h