Re: 11/40 misbehaviour

From: RHB (dcs8506_at_bellsouth.net)
Date: 08/06/04 

Date: 6 Aug 2004 06:41:01 -0700

My last post had the text garbled in one the sentences.

It shud read :
If W7 and W8 are configured in an X pattern, they
are interleaved

dcs8506@bellsouth.net (RHB) wrote in message news:<221a1b70.0408052218.10663697@posting.google.com>...
> On the 11/40 you interleave with jumpers on the memory board
> controllers.
>
> Using the MM11-U type memory, two contiguously addressed 16K banks
> yield 32K by properly jumpering the M8293 timing board:
>
> W9 is in and W10 is cut for one of the 16K pair
> and
> W9 is cut and W10 is in for the other 16K pair
> Both interleave memorys shud be cut for the same starting
> address
>
> To non-interleave:
>
> W1 is in, W2, W8, W9 and W10 are cut
>
> Using the MM11-L type memory, two contiguously addressed 8K banks
> yield 16K by properly jumpering the G110 control board using jumpers
> W7 and W8:
>
> If W7 and W8 are configured in an &#8220;X&#8221; pattern, they
> are interleave
>
> If W7 and W8 are straight across to their own post, they are
> non-interleave
>
> That info is from the book but as I recall it sounds correct.
>
>
>
>
>
>
>
>
> Eric Smith <eric-no-spam-for-me@brouhaha.com> wrote in message news:<qhzn59kx1n.fsf@ruckus.brouhaha.com>...
> > John Holden <johnh@psych.usyd.edu.au> writes:
> > > Moving memory banks is always a good first test, but beware that most
> > > decently configured systems would interleave the banks, so a straight
> > > meory address swap might just move the error from even to odd words
> > > (16 bits)
> >
> > Memory interleave on an 11/40? How do you configure that? I've only
> > seen them use normal Unibus memory with each memory unit responding to
> > all addresses in a contiguous range.

Relevant Pages

  • Re: Does Searles "Chinese Room" argument imply that consciousness is non-scientific?
    ... It is because we have no memory of what the feet ... network detect a pattern, and every pattern this network detects is what we ... we are conscious of our feet moving when we ride a bike. ... That is, when we see a real dog, the dog pattern detectors are activated ...
    (comp.ai.philosophy)
  • Re: Am I imagining this (problem with Solaris 9)
    ... >One thing to consider is using different size memory modules will make ... >interleave and you are having to wait for refreshes on every transaction. ... The various Sun sources ... The System Handbook for the OPs SB100 says "DIMMs can be mixed and matched". ...
    (comp.unix.solaris)
  • Re: question on union
    ... The type is important because it defines how the bit pattern is ... the implementation will usually use the same memory for both ... follow-up to him, ...
    (comp.lang.c)
  • Re: About speed
    ... The Finalizepattern, which calls a protected virtual Dispose ... only needed if you wrap an OS resource or some other external, ... a particular block of memory is now free (presuming a small block, ... allocations get made from the Large Object Heap, ...
    (borland.public.delphi.non-technical)
  • Re: question on pattern matching
    ... But the first one has a quantifier applied to memory ... parentheses, and the result of that isn't easy to intuit. ... But if the key part of the pattern is matched zero ...
    (perl.beginners)