INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CREATE_INTR" - CREATE INTERVAL ENTRY
	AX = 040Ah
	BP = 00AEh (driver ID for V_8041)
	BH = vector number of driver to be called regularly (vector addr / 6)
Return: AH = status (see #03744)
	BP,DS destroyed
Desc:	add a driver to the list (max eight) of drivers which will be called
	  by the HP's 8041 at 60 Hz
Note:	the newly added entry will not be called until enabled with
	  AX=040Eh/BP=00AEh
SeeAlso: AH=00h"HP Vectra",AX=040Ch/BP=00AEh,AX=040Eh/BP=00AEh
SeeAlso: AX=0412h/BP=00AEh,AX=0416h/BP=00AEh,AX=041Ah/BP=00AEh