Int 15 Fn 44F3  U - Toshiba Laptops - Security Level Check                 [B]

   AX = 44F3h
   DS:DX -> byte with 00h or 01h ???

Return: DS:DX -> changed ???

Note:  used by Toshiba BIOS setup utility TSETUP.EXE to distinguish
     between USER and SUPERVISOR security level

See Also: AX=44F1h,AX=44F2h