Int 7F Fn B1  - Alloy Ntnx, Mw386 - Release Normal Semaphores For User     [N]

   AH = B1h subfn 00h
   AL = (bits 7-5) 000
        (bits 4-0) user ID

Note:  MW386 ignores AL; it releases all semaphores locked using INT 67 or
     INT 7F locking functions

See Also: AH=B0h,AH=B2h,AH=B3h,AH=B4h