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  Interrupt:   21h     Function:   0Dh
 
  Title:       Disk Reset
 
  See also:    Commit File
 
  Description:
 
     Flushes all file buffers. All data that has been logically written
     by user programs but has been temporarily buffered within MS-DOS
     is physically written to the disk.
 
     Input        Output
 
     AH = 0Dh     None
                                    -♦-