Specifications

AMD Geode™ GeodeROM Functional Specification 39
Removable Media
32087C
5.2.8 Function 0Dh - Alternate Disk Subsystem Reset
Description:
Reinitializes the fixed disk controller, resets the specified drive’s parameters, and recalibrates the drive’s heads (seek
to track 0). Both the master drive and the slave drive respond to the reset function issued to either drive.
Supports:
Fixed disk and floppy disk.
Passed:
Returns:
Special Instructions:
None.
Related Functions:
INT 13h "Function 00h - Reset Disk Subsystem" on page 32.
5.2.9 Function 15h - Get Disk Type
Description:
Returns the type of disk that applies to the caller’s DL register value.
Supports:
Fixed disk and floppy disk.
Passed:
Returns:
Parameter Description
AH 0Dh
DL Drive number
Parameter Description
CF 0 = Success
1 = Failure
AH Status code:
See AH in "Function 01h - Get Disk Subsystem Status" on page 33
Parameter Description
AH 15h
DL Drive number
Parameter Description
CF 0 = Success
1 = Failure
AH If CF = 0: Type of drive corresponding to caller’s DL register:
00h = Disk not present
01h = Floppy disk drive without disk change detect
02h = Floppy disk drive with disk change detect
03h = Fixed disk
If CF = 1: Status code:
See AH in "Function 01h - Get Disk Subsystem Status" on page 33
CX:DX Number of 512 byte sectors on disk