en:docs:dos:api:int21:4c

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Int 21H, AH=4C

INT 21 - DOS 2+ - “EXIT” - TERMINATE WITH RETURN CODE

      AH = 4Ch
      AL = return code

Return: never returns Notes: unless the process is its own parent

        (see #01378 [offset 16h] at AH=26h), all open files are closed and
        all memory belonging to the process is freed
      all network file locks should be removed before calling this function

SeeAlso: AH=00h,AH=26h,AH=4Bh,AH=4Dh,INT 15/AH=12h/BH=02h,INT 20,INT 22 SeeAlso: INT 60/DI=0601h