INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CRV_WR_PROMPTS" - WRITE PROMPT
	AX = 0408h
	BP = 0114h (driver ID for V_HPHIL)
	BX = device address indicator (see #03760)
	DH = HP HIL device major address
	DL = prompt number
Return: AH = status (see #03744)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=020Eh,AX=0406h/BP=0114h,AX=040Ah/BP=0114h


Bitfields for HP Vectra V_HPHIL device address indicator:
Bit(s)	Description	(Table 03760)
 15-14	reserved
 13	address in DH is valid (must be set, clear is reserved)
 12	valid value in DL
 11-0	reserved