INT 13 - Seagate - ??? - PARK HEADS                                             
	AX = 5505h
	DX = drive (bit 7 set for hard disk)
Return: CF clear if successful
	CF set on error
SeeAlso: AX=5504h,AX=5515h
                                                                                

INT 13 - Seagate ST01/ST02 - PARK HEADS                                         
	AX = 5505h
	DL = drive ID (80h, 81h, ...)
	DH = subfunction
	    00h park heads (SCSI(Small Computer Systems Interface) A system-independent expansion bus typically used to connect hard disks, tape drives, and CD-ROMs to a computer.	A host adapter connects the SCSI bus to the computer's own bus.  See also ESDI, IDE. Stop command)
	    01h un-park heads (SCSI(Small Computer Systems Interface) A system-independent expansion bus typically used to connect hard disks, tape drives, and CD-ROMs to a computer.	A host adapter connects the SCSI bus to the computer's own bus.  See also ESDI, IDE. Start command)
Return: nothing