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