
TABLE #1: MAPPING OF USART NUMBERS TO ACTUAL I/O DEVICES
PCON NUMBER I/O BOARD RELATIVE USER
0 SYSTEM SUPPORT I
1 INTERFACER 3/4 7
2 INTERFACER 3/4 6
3 INTERFACER 3/4 3
4 INTERFACER 3/4 2
5 INTERFACER 3/4 1
6 INTERFACER 3/4 0
8 INTERFACER 3/4 9
9 2nd INTERFACER 3/4 10
A 2nd INTERFACER 3/4 11
B 2nd INTERFACER 3/4 12
C 2nd INTERFACER 3/4 13
D 2nd INTERFACER 3/4 14
E 2nd INTERFACER 3/4 15
In the software as supplied by CompuPro the tables are set up for
fourteen consoles and three printers using a SYSTEM SUPPORT I and
two INTERFACER 3s. The number of PHYSICAL CONSOLE DEVICES is set
for seven, and the number of LIST DEVICES is set for two; these
values are the maximum possible for systems with only one
INTERFACER 3 (the average system). So for most systems, to add
another printer, you would either have to add another
INTERFACER 3 OR 4 or rearrange a USART assignment from the I/O
CONSOLE TABLE to the LIST DEVICE TABLE. In either case, you
would have to adjust the device constants accordingly.
For example, if you want to add a third printer on your system,
but you only have one INTERFACER 3, you have to decrease your
total of consoles from seven to six. You could remove console 6
by replacing the 01 (USART 01) at location 0C47 with the 0A from
location 0C48 below it, and moving each entry in the table up one
(0B where 0A was, 0C where 0B was, etc.) until you get to the
last CONSOLE DEVICE entry (0C4E) which would be set to 00. Then
you could reassign that USART 01 to the third entry in the LIST
DEVICE TABLE (0C51). Finally you would decrease the PHYSICAL
CONSOLES constant (0C10) from 07 to 06, and increase the LIST
DEVICES constant (0C13) from 02 to 03. If you changed the table
in this way it would look like this:
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