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1992-03-08
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Archimedes Kermit
=================
This file contains any additions to docs.Kermit specific to the Archimedes.
(1) When setting baud rates, it is possible to set both transmit and receive
rates. This is done by using the set speed command with two parameters;
set speed 1200 75
will give a transmit rate of 1200 and a receive rate of 75. Similarly,
you can put two rates on the command line like this;
*kermit -b 1200 75
(2) Archimedes Kermit has at the moment, two terminal emulations vt52 and
teletype. These can be selected by using the command set emulation;
set emulation tty
set emulation vt52
The teletype emulation, simply prints all characters above code 31,
including those above 128 if terminal byte size is set to 8.
It also acts on the following codes;
7 beep
8 cursor left
9 cursor right
10 cursor down
11 cursor up
12 clear screen
30 home cursor
127 backward delete.
The cursor keys produce codes 8-11.
The vt52 emulator is fairly complete the main omission being printer
support.
In the vt52 emulator, the following codes are trasmitted;
Archimedes key vt52 key Numeric keypad mode Application mode
============== ======== =================== ================
Num Lock PF1 ESC P ESC ? P
/ PF2 ESC Q ESC ? Q
* PF3 ESC R ESC ? R
# PF4 ESC S ESC ? S
keypad 7 keypad 7 7 ESC ? w
keypad 8 keypad 8 8 ESC ? x
keypad 9 keypad 9 9 ESC ? y
keypad 4 keypad 4 4 ESC ? t
keypad 5 keypad 5 5 ESC ? u
keypad 6 keypad 6 6 ESC ? v
keypad 1 keypad 1 1 ESC ? q
keypad 2 keypad 2 2 ESC ? r
keypad 3 keypad 3 3 ESC ? s
keypad 0 keypad 0 0 ESC ? p
keypad . keypad . . ESC ? n
keypad Enter keypad Enter code 13 ESC ? M
keypad + keypad + + ESC ? l
keypad - keypad - - ESC ? m
Archimedes key vt52 key cursor key mode
============== ======== ===============
cursor up cursor up ESC A
cursor down cursor down ESC B
cursor right cursor right ESC C
cursor left cursor left ESC D
The vt52 extended graphics character set is implemented as are the following
escape sequences;
Pn is a decimal number (if omitted default used)
Pl is a character whose ASCII value is 31+line number
Pc is a character whose ASCII value is 31+col number
(origin 1,1 is top left hand corner of screen)
ESC = set application keypad mode
ESC > set numeric keypad mode
ESC A cursor up
ESC B cursor down
ESC C cursor right
ESC D cursor left
ESC H home cursor
ESC I reverse line feed
ESC Y Pl Pc cursor to line Pl column Pc
ESC J erase to end of screen
ESC K erase to end of line
ESC Z identify; replies with ESC/Z
ESC F select special graphics
ESC G select US ASCII character set
These control codes are implemented;
7 beep
8 backspace
9 tab
10 line feed
11 " "
12 " "
13 carriage return
24 cancel escape sequence
27 start escape sequence
!Kermit
=======
This is an example of how to setup Kermit, so that you can use it from the
RISC OS desktop. Appart from the usual !Run and !Boot files, the !Kermit
directory also contains a Kerm_ini initialisation file. You can put any
sequence of commands that you want into this and they will be executed
when Kermit starts. The point is though that for this version of Kermit
kerm_ini must be in !Kermit.