INT 15 - Compaq EISA(Enhanced Industry-Standard Architecture) A 32-bit superset of the IBMInternational Busiuness Machines ATIBM PC AT's expansion bus (which is now known as the ISA or Industry-Standard Architecture bus). System ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. 04/08/93 - ???
	AX = D825h
	CX = ???
	SI = ???
	DI = ???
	???
Return: CF clear if successful
	    AH = 00h
	    CX = ???
	CF set on error
	    AH = error code
		87h ??? failed
		88h ???
		    CX = ???
Note:	these functions are only available if ??? from keyboard controller
	  command C0h