{{page>en:templates:dosint}} ====== Int 21H, AH=44H, AL=08H ====== ===== Version ===== 3.0 and higher ===== Brief ===== CHECK IF BLOCK DEVICE REMOVABLE ===== Family API ===== ===== Input ===== AX = 4408h BL = drive number (00h = default, 01h = A:, etc) ===== Return ===== CF clear if successful AX = media type (0000h removable, 0001h fixed) CF set on error AX = error code (01h,0Fh) (see #01680 at AH=59h/BX=0000h) ===== Macro ===== ===== Notes ===== 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 (except under DR DOS 3.41-5.0, which do not pass through this call to the driver; use AX=440Eh instead) (see AX=4404h"Stacker",AX=440Eh,INT 25/AX=CDCDh) this function was not supported by Digital Research's DOS Plus ===== See also ===== AX=4400h,AX=4404h"Stacker",AX=4409h,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}}