UPDATE# DATA GENERAL DASHER TERMINAL EMULATION

MS-DOS Kermit 3.13 includes built-in emulation of the Data General DASHER
D463 (monochrome) and D470 (color) text/graphics terminals:

  SET TERMINAL TYPE { D463, D470 }

Because DASHER escape sequences can include XON and XOFF characters, you must
also tell MS-DOS Kermit not to use regular bidirectional Xon/Xoff flow
control.  Instead, on network connections, SET FLOW NONE; on serial
connections, SET FLOW RTS/CTS if available, or else use unidirectional
Xon/Xoff with the new command:

  SET FLOW OUTGOING-XON/XOFF

If the remote host echos these characters Kermit will accept them as data
instead and that will confuse interpretation of following control sequences.

For using Western European languages on a Data General host:

  SET TERMINAL CHARACTER-SET DG-INTERNATIONAL

DG function and special keys are supported via new keyboard verbs, which can
be assigned as desired with SET KEY: \KdgF1..F15, \KdgC1..C4, arrow keys,
Home, \KdgPoint, \KdgSPCL, \KdgNC.  These verbs are not assigned
automatically, you must assign them yourself.  Here, for example, is a sample
macro that assigns the DG F1-F12 keys to the PC's F1-F12 keys:

define dasher set key cle,set flow outgoing-xon/xoff,set term type d463,-
  set ke \315 \kdgf1,set ke \316 \kdgf2,set ke \317 \kdgf3,-
  set ke \318 \kdgf4,set ke \319 \kdgf5,set ke \320 \kdgf6,-
  set ke \321 \kdgf7,set ke \322 \kdgf8,set ke \323 \kdgf9,-
  set ke \324 \kdgf10,set ke \389 \kdgf11,set ke \390 \kdgf12

Arrow-key codes (\Klfarr, etc) are adjusted automatically according to the
terminal type (VT52/Heath, VT100/102, VT220/320, or Data General).

For SPCL key operation, see the next section.

A comprehensive set of DG DASHER key assignments is given in the DASHER.INI
(MSIDASH.INI) file, supplied by a volunteer at Data General Corporation.  This
mapping follows that used in DG's CEO Connection product.

Compressed text (see section on compressed text below) is supported in either
text or graphics mode, depending on your video adapter and preferences; in
graphics mode, regular and compressed text can be mixed on the same screen.
Full-color DG graphics are also supported including polygon fill, and the
mouse (Microsoft or compatible) is supported for CEO Drawing Board and other
graphics applications; mouse movements control the crosshair cursor and the
left mouse button sends \KdgF1.

The DG International Character Set (DGI) is supported during terminal
emulation, with conversion to CP437 if CP437 is active, otherwise to CP850.
CP850 is recommended, since it is the closest match to DGI.  Other code
pages are not supported in DG terminal emulation.  Hebrew, Latin/2, and Kanji
terminal emulation are not supported in DG terminal emulation.

Also not supported for DG terminal emulation: downloadable
fonts/character-sets; retention of graphics screens after escaping back or
switching to text mode; compressed fornts for monochrome, CGA, or Hercules
video adapters.


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