INT 15 U - Toshiba laptops - SECURITY LEVEL CHECK                               
	AX = 44F3h
	DS:DX -> byte with 00h or 01h ???
Return: DS:DX -> changed ???
Note:	used by Toshiba BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. setup utility TSETUP.EXE to distinguish
	  between USER and SUPERVISOR security level
SeeAlso: AX=44F1h,AX=44F2h