Megan wrote:
The Monitor you're using was Sysgen'd to load
those drivers
automatically. You could probably free up a little memory by doing a
Sysgen that just includes the drivers you need.
Ok, makes sense. I suppose I have to find an original system master to
make my own sysgen. Though the boot disk I'm using now suits me fine for
my current purposes.
Problem is that it is wrong. The monitor, at boot time, will fill
in its tables for devices it finds (up to 40 devices). Except for
the system device, which is loaded so that it can't be unloaded,
these handlers are considered 'installed' if the I/O page addresses
indicated as required in the handler exist. This does not mean
that the handlers have been loaded. Handlers are not automatically
loaded by RT-11. They can, however, be loaded using the startup
command file. They can also be .FETCHed by properly written
programs.
Jerome Fine replies:
I always though that the maximum was about 32 devices,
so I guess I will need to check.
Also, although the system device is LOADed at boot time,
the SHOW DEVICE command shows "Resident" as the actual
status - which I agree means that it can't be UNLOADed.
Finally, as discussed elsewhere, even normal "properly
written programs" can't .Fetch a device driver if it is
being run as a "system" or "foreground" job.
Sincerely yours,
Jerome Fine
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