Int 6F Fn 22 - HP Hil Vectras - Extended BIOS - Read Cmos Memory [b] AH = 22h BP = 0012h (ID of V_SYSTEM driver) BL = address of CMOS byte to read Return: AH = status AL = byte read BP, DS destroyed Note: supported by ES, QS, and RS series HP Vectras See Also: BP=0012h/AH=24h