Function 0Dh (13)        Disk Reset

Flushes all file buffers.

On entry:      AH         0Dh

Returns:       Nothing

                                                                          

Notes:         This function flushes all file buffers but does not
close files. To ensure that the proper length of a
changed file is recorded in the disk directory, use
one of the two Close File Functions (10h or 3Eh).

See also: 10h
See also: 3Eh

0Dh (13) Disk Reset