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2006-10-19
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100/100 Documentation
MODEL 100 FUNCTION KEYS WITHIN VT100 MODE
The Model 100's 40 column by 8 line screen is a window into one sixth of
a normal 80 column by 24 line VT100 screen. In VT100 mode, the
following keys are used for special functions:
F1 will show Section 1 of the VT100 screen As illustrated in FIGURE 1
below, this is the upper most left sixth of the screen (lines 1-8,
columns 1-40)
F2 will show Section 2, the middle left sixth of the screen (lines 9-16,
columns 1-40)
F3 will show Section 3, the lower left sixth of the screen (lines 17-24,
columns 1-40)
F4 will move down four rows from whatever vertical and horizontal
position is presently being viewed.
F5 will display columns 1-40 at the present vertical position. If
already at the left margin, no action will be taken
F6 will display columns 21-60, showing the middle section of the screen.
The vertical position coincides with the current vertical position.
F7 will display the left side of the screen, columns 41-80 in its
present vertical position.
PASTE -the PASTE function key- will return to the original screen where
the cursor is presently located and exit view mode.
F8 will return to TELCOM. The screen will not clear, so any prompt you
had at the cursor will remain.
CODE e (e for exit) will return to TELCOM, but it will clear the screen
before doing so.
LABEL will bring up the row and column number of the present cursor
location in the bottom left corner of the screen. This display will
disappear automatically as soon as the screen needs to scroll, or can
be erased immediately if it covers important text by pressing PASTE
PRINT -the PRINT function key- will print the screen to the printer if
it is attached and turned on. If no printer is connected to the
parallel port, no action is taken.
page -4-
100/100 Documentation
MOVING AROUND IN THE VT100 MODE
GRAPH 'a' will send a CTRL A to the host computer. A CTRL A is used in
some editing programs, including command line editing on the VAX to
switch between insert and replace mode. Since the SHIFT Left Arrow
generates the same code as CTRL A, and has been mapped to become the
PF4 function key (see below), some way is needed to generate a CTRL A
to send to the host. The GRAPH a will send such a code (ASCII Code
1).
CODE 'x' toggles between XON/XOFF enabled, and disabled. It may never
be required. It was put into 100/100, because some electronic
switches interpret the XOFF character sent out as an actual character
and invalidates the choice. It is usually only required at speeds
greater than 300 baud, using an external modem, where the screen on
the Model 100 cannot keep up with the characters received and when
the switch being used sends a full screen of information, rather than
a single line prompt, before a choice is allowed. Pushing CODE x
will turn off XON/XOFF if it is on, and turn it on if it is off.
When returning to TELCOM, whichever mode has been set using the STAT
command will be used, regardless of the toggle state inside the VT100
emulator.
GRAPH NUMBER KEYS produce the code of the number keys on the VT100
keypad, if in application mode. The number keys used here are not
the ones at the top of the Model 100, but the ones used to generate
numbers when the NUM key is depressed. The keys produce the keypad
equivalents in application mode, not the numbers. The keypad keys on
a VT100 produce two different sets of code when pressed, either a
special application code, or the numbers. Application mode is
typically used in applications like word processing and editing where
rather than produce a number, a function is produced when the key is
depressed. If you are in an application that uses the keypad to
produce numbers, press the NUM key and use the same keys. A VT100
will automatically switch between application mode and numeric mode
for these keys, but 100/100 will not. If you are using the GRAPH key
combination and it doesn't seem to be working, try the NUM key
instead.
One exception to the GRAPH number key is the '1' (one) or 'j' key.
Unfortunately, GRAPH j is not recognized by the Model 100 as a key
being pressed, therefore the user must press GRAPH SHIFT J. Since
the three key combination can be somewhat awkward, GRAPH 'h' will
produce the same code. Either combination will work. Both
combinations are less than desired and may cause the user some
consternation until experience makes their use a habit. Until then,
the user is likely to press GRPH j more than once and wonder why no
response is obtained. The limitation of the Model 100, however,
makes this situation unavoidable.
page -5-
100/100 Documentation
In addition to the number keys, GRPH . (period) will produce the
keypad period, GRPH , (comma) will produce the keypad comma, GRPH '
(single quote) the keypad enter, and GRPH / (slash) will produce the
keypad minus. The slash was chosen rather than the minus sign, for
two reasons; one was its proximity to the other keys, rather than on
the top row of the keyboard. The other is that the GRPH - combination
on the Model 100 is used to produce the ASCII code 96, the backslash
character. The GRPH ' (single quote) was chosen to represent the
keypad ENTER key since it sits right next to the ENTER key on the
Model 100.
CODE SHIFT R will reset the screen. The screen is cleared, the cursor
is homed, top and bottom margins are reset to 1 and 24 respectively,
and tab stops are set to their defaults.
PF Function Keys are produced by using the SHIFT Arrow Keys.
PF1 -sometimes the GOLD key on the VT100- is emulated with the SHIFT
Left Arrow key.
PF2 is SHIFT Right Arrow key
PF3 is SHIFT Up Arrow key
PF4 is SHIFT Down Arrow key
The Key Layout for the VT100 keypad keys looks like the following, where
the top characters in the box represent what is on the Model 100 key and
the bottom most character in the box, between the '- -' respresents the
keypad equivalent on the VT100 keypad.
---------------------
|SHFT|SHFT|SHFT|SHFT|
Model 100 Cursor Keys -> | <- | -> | // |
(Use SHIFT + Cursor Key) | PF1| PF2| PF3| PF4|
---------------------
-------------------
| & | * | ( |
| 7/7 | 8/8 | 9/9 |
| -7- | -8- | -9- | Use GRPH + Key
----------------------
| | | |
| U/4 | I/5 | O/6 |
| -4- | -5- | -6- |
-------------------------------------
| |SHIFT| | | : | " |
| H | J/1 | K/2 | L/3 | ; | ' |
| -1- | -1- | -2- | -3- | |-ENT-|
-------------------------------------
| | < | > | ? |
| M/0 | , | . | / |
| -0- | -,- | -.- | --- |
-------------------------
(Minus)
page -6-