bill@ssbn.UUCP (09/01/87)
There have been a number of questions recently regarding a mouse driver
for the PC 6300 PLUS. If you have the AT&T mouse there is no driver
required. There is a 9 pin connector towards the read edge of the keyboard
where the mouse plugs in. There might be a cover over it, but you just
plug the mouse in to it and it will generate arrow key codes according to
how you move it. The left switch generates a carriage return, the middle
(if present) a delete character, and the right an escape character (scan
codes 1C, 53, and 01 respectively). If the keyboard is in Caps Lock mode
the keyboard will send the shift depressed scan code followed by the shift
released scan code. The default scale factor to determine how much movement
generates a key code is 2 for the X axis and 4 for the Y axis. You can
alter the scale factor with the following 10 byte code sequence output to
the keyboard command/status port 0x64.
Byte Description
0 11 hex, set mouse mode 1 (the default)
1 scan code to use for the left button
2 scan code to use for the middle button (required)
3 scan code to use for the right button
4 scan code to use for left direction
5 scan code to use for right direction
6 scan code to use for down direction
7 scan code to use for up direction
8 X axis scaling factor
9 Y axis scaling factor
There is considerably more information in Chapter 7 of the Hardware Reference
Manual but that seemed like the most useful part. Apologies if the queries
were for a mouse other than the one for the PLUS. The AT&T mouse should enable
you to navigate within The Office locally and, to a point, on a UNIX-PC over
a modem.
--
Bill Kennedy {cbosgd | ihnp4!petro | sun!texsun!rrm}!ssbn!bill