DOS Fn 09H: Display String
                                                         Compatibility: 1.0+ 
 Expects: AH    09H
          DS:DX address of a string terminated with a '$' (ASCII 24H)
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 Returns: none
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    Info: The string, up to the terminating character '$' is sent to the
          Standard Output.
          Backspaces are handled as in the 02H Display Char function.
          The Normal procedure for displaying a 'newline' is to embed a
          CR/LF pair (ASCII 0dH followed by ASCII 0aH) in the string.
          Strings containing '$' may be printed via 40H Write File (BX=0).
See Also: Character I/O Functions
          DOS Functions
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