Int 7F Fn D8  - Alloy Mw386 - Flush Disk Buffers                           [N]

   AH = D8h

Return: CF set on error

Note:  forces all disk buffers to be written out immediately

See Also: INT 21/AH=0Dh,INT 21/AX=5D01h,INT 2F/AX=1120h