{{page>en:templates:dosint}} ====== Int 21H, AH=44H, AL=0EH ====== ===== Version ===== 3.2 and higher ===== Brief ===== GET LOGICAL DRIVE MAP ===== Family API ===== ===== Input ===== AX = 440Eh BL = drive number (00h=default,01h=A:,etc) ===== Return ===== CF set on error AX = error code (01h,0Fh) (see #01680 at AH=59h/BX=0000h) CF clear if successful AL = 00h block device has only one logical drive assigned 1..26 the last letter used to reference the drive (1=A:,etc) ===== Macro ===== ===== Notes ===== DR DOS 3.41-5.0 DRIVER.SYS does not support drive mapping and thus always returns AL=00h; Windows NT 4.0 also always returns AL=00h in addition to the normal operation, if Stacker is installed, this call also sets the volume number at offset 58h in the Stacker device driver (DR DOS 3.41-5.0 only; use AX=4408h otherwise) (see AX=4404h"Stacker",INT 25/AX=CDCDh) ===== See also ===== AX=4408h,AX=440Fh,INT 2F/AX=122Bh ===== Note ===== Text based on [[http://www.cs.cmu.edu/~ralf/files.html|Ralf Brown Interrupt List Release 61]] {{page>en:templates:int}} {{page>en:templates:fapi}}