Specifications
42 AMD Geode™ GeodeROM Functional Specification
Removable Media
32087C
5.2.12 Function 18h - Set Media Type
Description:
This function is invoked by the operating system to specify the geometry of the diskette about to be formatted. It super-
sedes INT 13h, Function 17h, although both are still valid for standard (non 3-mode) 5 1/4” and 3 1/2” disks.
Supports:
Floppy disk only.
Passed:
Returns:
Special Instructions:
None.
Related Functions:
INT 13h "Function 05h - Format Track (Floppy Disk)" on page 37.
INT 13h "Function 17h - Set Disk Type" on page 41.
Parameter Description
AH 18h
DL Drive number
CH Cylinder count
CL Sectors per track
Parameter Description
AH 00h = Specified geometry is not supported
01h = Function is not supported
80h = Drive is empty
ES:DI Far pointer to 11-byte floppy diskette parameter table