RX50 / RX33 Questions related to PDP-11's - test-drb@ccmp.vtda.org

15 Oct 1998

...
  I had to trade back some RQDX2s for RQDX1s on some
PDP-11/73s I delivered
 to the gummint because RT-11 didn't support them. I don't recall which
 version we were using; it would have been at least 5.0. I remember
 grumbling about how fancy (read "bloated") RT-11 was getting, but I don't 
 recall doing _that_ until 5.2; I thought it happened during the 11/73
 incident, though. I also don't remember why I thought 5.2 was bloated
 (it may have been the UCL/UCF stuff, which I thought was unnecessary), 
Yes, the UCL stuff is unnecessary, which is why if you don't want it
you simply answer SYSGEN question 100 with "NO":

	100. Do you want the user command linkage (Y)? $

	USER COMMAND LINKAGE OPTION:
        The  user  command linkage allows you to define your own commands
        which  can  be issued  in  a  format  similar to the standard DCL
        commands.

	100. Do you want the user command linkage (Y)? NO

...
  but I did stash away a 5.0 distribution kit as a hedge
against bloatation. 
An even better hedge against bloatation is to get RT-11 5.6 or later
and learn how to use SET RUN VBGEXE.  No matter how big the monitors
and drivers grow, by appropriately setting a .SAV image's VBGEXE
bits you can give it access to "all" 56kbytes of virtual memory space.  If you
want direct access to I/O space, you can turn that on too, or you can
also elect to have 64kbytes of virtual memory space available to your
process if you don't need direct access to I/O space.

-- 
 Tim Shoppa                        Email: shoppa(a)trailing-edge.com
 Trailing Edge Technology          Voice: 301-767-5917
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