

	PTT is a neat little utility to allow you to easily take
	advantage of the terminal extras available with the VT100
	and PT100 terminals.  PTT accepts a two character command
	code to tell it what to do.  The command line format is as
	follows:

	  PTT [#<tty>] <cmd code>[:<row>:<col>][/<message>][\<cmd>....]

	where <cmd code> is defined as follows:

		BL	Blink		DL	Delete Line
		BO	Bold		CL	Clear Screen
		UN	Underscore	TP	Clear to top of screen
		RV	Reverse Video	BT	Clear to bottom
		L1	Light LED L1	EL	Clear to end of line
		L2	Light LED L2	BL	Clear to beginning of line
		L3	Light LED L3	CT	Clear tabs
		ST	Set tab here	CC	Clear current tab here
		L4	Light LED L4	OF	Turn off all specials
		NO	Null command	SI	normal size characters
		SC	Save cursor	RC	Restore cursor
		UP	Move cursor up  DO	Move cursor down
		SW	Set white back.	SB	Set black background
		SH	80. char./line	LO	132. char./line
		GR	Enable graphics NG	Disable graphics
		DB	Double wide and double high characters (2 lines)
		IL	Insert a line of blanks
		WI	Double wide characters
		SR:<top>:<bottom> set scrolling region
		DC:<#>:0 Delete the # of characters starting here

	Let Steve know if there's something else you'd like to see added.
	Note-  PTT is not all that intelligent.  I can't guarentee
	that will not blow-up on you.  Be especially careful that you
	"clean up" after doing some involved terminal I/O. (You may leave
	parts of the screen set in a funny state.)  Anything is legal as
	a message except: !,\,and escape sequences.  PTT will allow you
	to clear, move cursor, and send messages to ADM-3A's.

