INT 13H 08H: Get Drive Parameters
Expects: AH 08H
DL drive: 0-3=diskette; 80H-81H=hard disk
Returns: AH BIOS disk error code if CF is set to CY
CX maximum value for cylinder and sector (see below)
DL number of hard disks on first controller
DH maximum value for head
ES:DI address of Hard Disk Parameter Table
Info: Returns information about a drive. These values are initially
set from a table in ROM, determined by the disk-type code stored
in CMOS Memory.
CX Bits 6-7 of CL are the high two bits of the 10-bit value whose
low 8 bits are in CH. See INT 13H 02H for details.
See Also: DOS Fn 440dH 60H (IOCTL get block device parameters)
INT 13H: BIOS Disk I/O
BIOS Data Area