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  Interrupt:   21h     Function:   09h
 
  Title:       Display String
 
  See also:    Write to File or Device, Character Output, @ShowStr
 
  Description:
 
     Sends a string of characters to the standard output device. Output
     may be redirected. However, if output has been redirected, there
     is no way to detect that the disk is full.
 
     Input                                Output
 
     AH = 09h                             None
     DS:DX = segment:offset of string
                                    -♦-