INT 2F U - Novell DOS 7 - EMM386.EXE - MULTITASKING API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running.  Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. - DPMIsee DOS Protected-Mode Interface SERVICES
	AX = 2780h
	CL = 06h
	CH = function
	    00h "F_InitDPMI" used for internal initialization
	    01h "F_DescAllocLDT" allocate LDT descriptor
	    02h "F_DescFreeLDT" free LDT descriptor
	    03h "F_DescGetLDT" get details on LDT descriptor
	    04h "F_DescSetLDT" set up LDT descriptor
	    05h "F_DescAllocInt21" allocate descriptor for PM INT 21
	    06h "F_WhereIsDPMI" get address of DPMIsee DOS Protected-Mode Interface global data
Return: ???
Notes:	called by DPMSsee DOS Protected-Mode Services.EXE and EMM386.EXE
	the handler for this function may be set by one of the subfunctions
	  of AX=2780h/CL=01h; the default handler returns AX=BX=FFFFh and
	  CX=0001h (see #02739)
	this API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running.  Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. is only available if AX=12FFh/BX=0EDCh returns successfully;
	  because the request is handled on the initial trap to the memory
	  manager caused by INT instructions, this API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running.  Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. must be invoked with
	  an actual INT 2F instruction instead of some simulation such as a
	  far call to the address in the interrupt vector table
SeeAlso: AX=12FFh/BX=0EDCh,AX=2780h/CL=01h,AX=2780h/CL=02h,AX=2780h/CL=03h