Int 17 Fn A7  - Alloy Mw386 V2+ - Get/set Spool Flags                      [N]

   AH = A7h
   AL = spool flags (see #0569)
   BX = logical device number
       00h-03h = LPT1-LPT4
       04h-07h = COM1-COM4

Return: AL = status (see #0566)

Note:  the documentation does not state which register contains the result of
     a GET

See Also: AH=A4h,AH=A6h

Bitfields for Alloy spool flags:
Bit(s) Description (Table 0569)
 0 banner page enabled (see AH=A6h)
 1 form feed enabled (see AH=A4h)
 2-6   reserved (0)
 7 set flags if 1, get flags if 0