Due to the instruction set incompatibilities between
the 11/20 and other
11s, will they even run RT11 V30B with 8K core?
RT11 V03B ought to be OK, as long as you have enough memory. I know that
12K words core is enough (I have V03B on an 11/04 with 12K core), I suspect
it will fit in 10 or 8K.
If you try to run RT-11 5.5 or 5.6 on an 11/20, you'll get some complaint
because EIS instructions found their way into a few utilities and drivers.
This has been rectified for 5.7; see the 5.7 release notes for details.
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW:
http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927