T13/2132-D Revision 3
8.10 Get Disk Type (FN 15h)
This function shall be used to find the device type. This function is called by some versions of DOS during the
boot process.
Entry
AH 15h
DL BIOS device number
Exit
Carry Clear Function completed without error
CX:DX Number of sectors on the media
Carry Set Function completed with an error
38
AH
Value Description
00h Removable media device present
03h Fixed media device present
AH Shall be set to the error code
Working Draft Enhanced Disk Drive - 4 (EDD-4)
June 23, 2010