[Info-vax] Whither VMS?

[John Reagan]

<VAXman- @SendSpamHere.ORG> wrote in message 
news:00A926E6.293C5FBD at SendSpamHere.ORG...

> VAX PTE's maintain read and write access for the various modes only. 
> There
> is no EXECUTE bit.  Not on the Alpha either.  Only on ia64 is there such a
> concept.
>

I don't remember the details but Tru64 Alpha has something to prevent you 
from executing on the stack.  I seem to remember having to call some 
mprotect() service in order to execute the Bound Procedure Values defined in 
the Tru64 Calling Standard.  I wonder how that is implemented?

John