Bitfields for IBM/MS INT 13 Extensions information flags:
Bit(s)	Description	)
 0	DMA boundary errors handled transparently
 1	cylinder/head/sectors-per-track information is valid
 2	removable drive
 3	write with verify supported
 4	drive has change-line support (required if drive >= 80h is removable)
 5	drive can be locked (required if drive >= 80h is removable)
 6	CHS information set to maximum supported values, not current media
 15-7	reserved (0)
Note:	bits 4-6 are only valid if bit 2 is set
SeeAlso: #00273