Bitfields for feature byte 2:
Bit(s)	Description	)
 7	32-bit DMA supported
 6	INT 16/AH=09h (keyboard functionality) supported (see #00585)
 5	INT 15/AH=C6h (get POS data) supported
 4	INT 15/AH=C7h (return memory map info) supported
 3	INT 15/AH=C8h (en/disable CPU functions) supported
 2	non-8042 keyboard controller
 1	data streaming supported
 0	reserved
SeeAlso: #00509,#00512,AH=C6h,AH=C7h,AH=C8h,INT 16/AH=09h