INT 21 - DOS 1+ - DISK RESET
AH = 0Dh
Notes:  writes all modified disk buffers to disk, but does not update directory
information (that is only done when files are closed or a SYNC call
is issued)
SeeAlso: INT 13/AH=00h,INT 2F/AX=1120h

See also: 215D01

210D - DOS 1+ - DISK RESET