TPU SECTION FILE

	This section file will only support a vt200 series terminal
setup as a vt200 terminal.  

	1. Do a $SHOW TERMINAL. The device type must be a VT200 series
	   terminal.

	2. Go into setup on the terminal and make sure it is in
	   VT200 mode, 7 bits control.

 If you are not set up this way the editor will not work correctly
with this section file.  You can tell when it is not set up right
when you can press the PF4 key and have it ask for a command instead
of deleting a line like it is supposed to.  Also you can tell when
the application keypad is not defined.

 To setup a symbol to use this section file enter:

	EDE :== EDIT/TPU/SECTION=SYS$LOGIN:NAT.GBL

 Then copy NAT.GBL into you home directory.


	I am providing the net.hlp file here for reference as I
describe some of the more non-obvious commands.

 Eve keypad for VT200 series terminals   f17      f18      f19      f20
  f7 = $  f8 = !  f9 = :  f10 = _     < mar 20  > mar 20 buffer  get file
  _________________________________  _____________________________________
  |Forward|Move by| find  |insert |  | shift  |oth wind|repeat n|era line|
  |Reverse| Line  | next  |overstr|  |        |2 window|1 window|del eol |
  |__f11__|__f12__|__f13__|__f14__|  |________|________|________|________|
                                     |open lin|insert l|save lin|era word|
  CTRL/N - EVE NEXT SCREEN           |  dcl   |wrt file|inc file|        |
  CTRL/P - EVE PREV SCREEN           |________|________|________|________|
  CTRL/W - REFRESH                   |goto mar|forw/rev|crea mar|era char|
  CTRL/Z - EXIT                      |restore |80 char |mess buf|remember|
                                     |________|________|________|________|
  SHIFT/F17 - SET MASTER BUFFER      |mov by w|  eol   |replace | other  |
  SHIFT/F19 - NEXT BUFFER            | learn  |132 char|era to s| buffer |
  SHIFT/F20 - PREVIOUS BUFFER        |________|________|________|        |
  SHIFT/B- SHOW SYS/BATCH            |move down a line |move up |  show  |
  SHIFT/P- SHOW/QUE/ALL SYS$PRINT    |     bottom      | top    |        |
  SHIFT/Q- SHO QUE/BATCH/ALL         |_________________|________|________|
                                   Use the Do key to enter advanced commands
  Use the Help key for help or press the Do key and enter help for more help


 SHIFT/F17 - SET MASTER BUFFER, When you get into TPU the file you bring
	up is the Master Buffer.  This means that when you use the "other
	buffer" key it will toggle between this buffer and another buffer.
	As an example, if you have pulled in two other files with the 
	"get file" key, your current buffer will be the last file you
	pulled in.  If you press the "other buffer" several times you
	will see that your current buffer switches between the first
	buffer and the third buffer.  If you press the "prev buffer"
	key while you are in the third buffer, you will go to the second
	buffer. If you press the "shift" key and then the "F17" key,
	you will make the second buffer the master buffer. When you use
	the "other buffer" key you will now toggle between the second
	buffer and another buffer.

SHIFT/F19
SHIFT/F20 - NEXT BUFFER and PREVIOUS BUFFER, once you have created several
	    buffers, you can switch between them by using these keys and
	    the "other buffer" key.

ENTER KEY - OTHER BUFFER, this will switch you between the master buffer
	    and the last buffer you were in which wasn't the master buffer.
	    You can change which buffer you toggle with the master buffer
	    by going to the buffer you want with the "prev buffer" or
	    "next buffer" keys.

KP6      -  CREATE A MARK is described in the TPU documentation

KP4      -  GOTO A MARK is described in the TPU documentation

EOL      -  GO TO END OF LINE is described in the TPU documentation

PF2      -  OTHER WINDOW, this will switch you between windows when you
	    are in the split screen mode

SHIFT/PF2 - CREATE TWO WINDOWS, this will create a split screen with two
	    windows.

SHIFT/PF1 - CREATE ONE WINDOW, this will take you from split screen mode
	    back to full screen mode.

KP9       - SAVE A LINE,  will save one line without deleting it for 
	    quick duplication of a line.

KP8       - INSERT A LINE, will insert the line saved by "save lin" key.

SHIFT/DO  - QUIT, will exit form the editor without saving any changes.



   The above decriptions cover the more non-obvious or confusing keys.

   If you want to redefine keys or change the source you will need
to create a new section .GBL file.  The following is an example of
how to recreate the nat.gbl file.


	1. $EDIT/TPU NAT.TPU

	2. Press DO key and enter at the Command: EXTEND TPU *

	3. Press DO key and enter at the Command: TPU NAT_KEYS

	4. Press DO key and enter at the Command: SAVE EXTENDED TPU 
	   SYS$LOGIN:NAT.GBL

	5. QUIT from the editor.

  If you have questions or comments please send them to:

			Gary Theda
			National Semiconductor
			1111 West Bardin Road
			Arlington, Texas
					76017