Int 15 Fn 1A  - Multidos Plus - Map Semaphore Name To Number               [T]

   AH = 1Ah
   DS:SI -> 8-byte name

Return: AL = status
       00h successful
       AH = semaphore number (20h-3Fh)
       04h out of string space

Notes: all eight bytes of the name are significant
   if the name does not already exist, it is added to the name table and
     associated with a free semaphore number
   names cannot be destroyed

See Also: AH=1Bh"MultiDOS",AH=1Ch"MultiDOS",AH=1Dh"MultiDOS"