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From: rrk@byuvax.bitnet
Newsgroups: comp.os.vms
Subject: Interprocess communication and "interlocked" instructions.
Message-ID: <4rrk@byuvax.bitnet>
Date: Mon, 5-Oct-87 01:11:06 EDT
Article-I.D.: byuvax.4rrk
Posted: Mon Oct  5 01:11:06 1987
Date-Received: Fri, 9-Oct-87 00:54:15 EDT
Lines: 7

Correct me if I am wrong:  Aren't the "interlocked" instructions such as
adwi, bbssi, bbcci only really useful on the obsolescent vax 11/782 shared
memory?  Don't all instructions--except for those which trash registers (which
are also used  to save the context of the executing instruction) like movc--
non-interruptable.  I understood that unless you had the 11/782 multiport
memory, bbcc was as good as bbcci.  Or is there still requirement for special
interlocking when you have multi processors such as the 8800?