Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

   ◄Summary►  ◄Notes►  ◄Back►
──────────────────────────────────────────────────────────────────────────────
 
  Description:  Reset Disk System      [PC] [AT] [PS/2]
 
  Resets the disk controller, recalibrates its attached drives (the read/
  write arm is moved to cylinder 0), and prepares for disk I/O.
 
  Input                            Output
  ═════════════════════            ════════════════════════════════════
  AH=00H                           If function successful
  DL=drive                         Carry flag=clear
     00H-7FH floppy disk           AH=00H
     80H-FFH fixed disk            If function unsuccessful
                                   Carry flag=set
                                   AH=status (see Int 13H Function 01H)
                                    -♦-