Specifications

40 AMD Geodeā„¢ GeodeROM Functional Specification
Removable Media
32087C
Special Instructions:
None.
Related Functions:
INT 13h "Function 17h - Set Disk Type" on page 41.
5.2.10 Function 16h - Get Disk Change Status
Description:
Returns the value of the floppy controller disk status change line, indicating whether the user has removed or inserted
a floppy diskette in the specified drive since the last read, write, or verify operation on that drive.
Supports:
Floppy disk only.
Passed:
Returns:
Special Instructions:
The operating system issues this function before each floppy diskette read or write to determine if its current FAT (file
allocation table) record is valid. The value returned by this function is valid only if the system supports the disk change
status line. Operating systems first invoke INT 13h Function 15h (Get Disk Type) to determine if the installed floppy
disk controller and/or BIOS supports status change detection.
Related Functions:
INT 13h "Function 15h - Get Disk Type" on page 39.
Parameter Description
AH 16h
DL Drive number
Parameter Description
AH Disk change status, where:
00h = No status change has occurred
06h = Diskette status has changed