SUPDUP is the WAITS implementation of the ITS SUPDUP program, which is used for
Telnetting to ITS sites or other hosts that implement this protocol.

For details on using SUPDUP, see the printed Monitor Command Manual, which
is online as MONCOM.BH[S,DOC], with updates in MONCOM.UPD[S,DOC].

Below are some details omitted from the Monitor Command Manual.


Everything nobody wanted to know about SUPDUP's internal mappings:

     The following character set mappings  are in effect.  These  mappings
occur on both input and  output, so in general  they are invisible to  the
user.  In particular, the graphic on the keytop is what ITS will see,  and
what is displayed on the screen is  what would be displayed on an ITS  TV.
But see the second table and notes for exceptions.

	SAIL		ITS
	----		---

  013	 VT		 ↑	(6)

  030	 _		 ←

  032	 ~		 ≠

  033	 ≠		ALT

  136	 ↑		 ∧	(2)

  137	 ←		 _

  175	ALT		 }

  176	 }		 ~

  177	BS		INT	(1) (6)


 In addition, the following keyboard mappings are done:

	KBD code	Sent to ITS
	--- ----	---- -- ---

	   αz		   [CALL]	(3)

	   αZ		   [CALL]

	  αβz		  α[CALL]

	  αβZ		  α[CALL]

	   α_		 [BACK NEXT]	(4)

	    ↑		     ∧		(2) (5)

 Notes:

(1) This character  is image rubout,  which on  a PDP-11 TV  is output  as
integral sign.

(2) AND sign  (∧) is used  for caret since  there is no  code in the  SAIL
character set for caret anyway.

(3) These four mappings are necessary since there is no way that any  form
of [CALL] can be read by a user program.

(4) This mapping is necessary since there is no key remotely equivalent to
the [BACK NEXT] key.

(5) This mapping  is necessary since  otherwise there is  no way to  enter
caret from the  keyboard.  As  caret is more  important on  ITS, up  arrow
lost.  VT  will input  an up-arrow,  however it  will not  be  [TOP]ified,
meaning that in order  to enter this  character into TECO  one must use  a
quoting convention  or  up-arrow  as  a command;  see  previous  page  for
details.

(6) Output only mapping.