Int 13 Fn 00  - Disk - Reset Disk System                                   [B]

   AH = 00h
   DL = drive (if bit 7 is set both hard disks and floppy disks reset)

Return: AH = status (see #0166)
   CF clear if successful (returned AH=00h)
   CF set on error

Note:  forces controller to recalibrate drive heads (seek to track 0)
   for PS/2 35SX, 35LS, 40SX and L40SX, as well as many other systems,
     both the master drive and the slave drive respond to the Reset
     function that is issued to either drive

See Also: AH=0Dh,AH=11h,INT 21/AH=0Dh,INT 4D/AH=00h"TI Professional"

See Also: INT 56"Tandy 2000",MEM 0040h:003Eh