Bitfields for HP Vectra EX-BIOS keyboard state:
Bit(s)	Description	)
 0	Alt pressed
 1	Left Shift pressed
 2	Right Shift pressed
 3	Ctrl pressed
 4	CapsLock active
 5	NumLock active
 6	Right unlabeled key pressed (some international keyboards)
 7	Left unlabeled key pressed (some international keyboards)
SeeAlso: #00582