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Re: M68k add to memory is not a mistake any more

Message-ID <4F2D6713.7090902@SPAM.comp-arch.net> (permalink)
Date 2012-02-04 09:12 -0800
From "Andy (Super) Glew" <andy@SPAM.comp-arch.net>
Organization comp-arch.net
Newsgroups comp.arch
Subject Re: M68k add to memory is not a mistake any more
References <ggtgp-8D1AEA.03180231012012@netnews.mchsi.com> <jgeu27$9rg$1@dont-email.me> <a7csv8-emn1.ln1@ntp6.tmsw.no> <jgiibd$hkq$1@dont-email.me> <ggtgp-0DB112.04020104022012@netnews.mchsi.com>

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On 2/4/2012 2:02 AM, Brett Davis wrote:
> In article<jgiibd$hkq$1@dont-email.me>,
>   Stephen Sprunk<stephen@sprunk.org>  wrote:
>
>> On 03-Feb-12 00:42, Terje Mathisen wrote:
>>> Stephen Sprunk wrote:
>>> Re. # of uops: It seems like modern x86 cores tend to go in the opposite
>>> direction and instead combine very common instruction pairs into a
>>> single uop, i.e. stuff like CMP/Jcc.
>>
>> I haven't figured out yet why that's a win--or even how it's possible.
>> The second instruction obviously has a direct dependency on the first,
>> so how can they execute as a single uop?
>>
>> Fusing them together for scheduling purposes makes sense, since they'd
>> likely end up traveling together anyway, but it seems like they'd need
>> to execute sequentially.
>
> Branches are taken care of by the front end predictor, the pipelines
> never see a branch, only sequential code.

The following was probably triggered by a literal reading of the reply. 
  But I suspect that Brett meant something slightly different.

??  On every machine that I have worked on, the pipelines see almost 
every branch, if only to verify that the prediction was correct.

If the predictors are correct, they should not be changing control flow. 
  But they are verifying control flow.

I.e.

* the pipelines check that the branch was taken or not taken as 
predicted, for conditional branches

* the pipelines verify the branch target was as predicted, for indirect 
jumps, indirect calls, and returns.

For some machines the branch target must also be verified for 
conditional jumps, and/or the virtual to physical translation of the 
branch target must be verified (for machines where the predictor 
predicts physical targets, not virtual targets, and where the mapping 
may change out from under you and/or the predictor is not fully tagged).

Unconditional direct jumps and calls might be elided from the pipeline 
(except for the virtual to physical issue).  But I've not seen anyone do 
so.  Calls typically flow down the pipeline, carrying the necessary info 
for register stack adjustment or link registers.

You could handle changes of control flow at different points in the 
pipeline.  Indeed, machines with my fingerprints do as much verification 
as possible early in the pipeline, i.e. at branch decode. And you could 
defer the verification to the retirement or graduation pipestages.  I.e. 
you could have branches skip the out-of-order part of the pipeline.

But this usually loses performance, because it adds latency to detection 
of incorrect branch predictions.

I.e. you could have branches that are correctly predicted never be seen 
by the pipeline, if you restrict pipeline to the OOO part, and not the 
in-order parts of the pipeline before ansd after.  But the incorrectly 
predicted branches, those benefit from OOO execution so as to be seen as 
early as possible.



> The CMP has a bit set that fires an interrupt if the branch prediction
> was wrong.

Not an interrupt.

I've spent 20 years teaching people that branch mispredictions should be 
handled faster than interrupts.

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M68k add to memory is not a mistake any more Brett Davis <ggtgp@yahoo.com> - 2012-01-31 03:18 -0600
  Re: M68k add to memory is not a mistake any more timcaffrey@aol.com (Tim McCaffrey) - 2012-01-31 15:49 +0000
    Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-01-31 09:48 -0800
      Re: M68k add to memory is not a mistake any more timcaffrey@aol.com (Tim McCaffrey) - 2012-01-31 22:20 +0000
  Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-01-31 10:15 -0800
    Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-03 15:49 +0000
      Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-02-03 12:44 -0800
  Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-01 12:49 +0000
    Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-02-01 08:02 -0800
      Re: M68k add to memory is not a mistake any more sarr.blumson@alum.dartmouth.org - 2012-02-01 16:18 +0000
        Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-01 16:53 +0000
          Re: M68k add to memory is not a mistake any more Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2012-02-01 12:54 -0700
            Re: M68k add to memory is not a mistake any more Brett Davis <ggtgp@yahoo.com> - 2012-02-02 21:01 -0600
          Re: M68k add to memory is not a mistake any more timcaffrey@aol.com (Tim McCaffrey) - 2012-02-02 16:41 +0000
            Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-02 22:47 +0000
            Re: M68k add to memory is not a mistake any more anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-02-03 14:57 +0000
          Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-03 10:21 -0800
          Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-03 10:25 -0800
          Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-02-03 12:48 -0800
            Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-07 12:02 -0500
              Re: M68k add to memory is not a mistake any more Brett Davis <ggtgp@yahoo.com> - 2012-02-07 13:07 -0600
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-07 14:58 -0500
                Re: M68k add to memory is not a mistake any more Stephen Sprunk <stephen@sprunk.org> - 2012-02-07 17:25 -0600
                Re: M68k add to memory is not a mistake any more Robert Wessel <robertwessel2@yahoo.com> - 2012-02-07 22:42 -0600
                Re: M68k add to memory is not a mistake any more Brian Drummond <brian@shapes.demon.co.uk> - 2012-02-08 10:31 +0000
                Re: M68k add to memory is not a mistake any more Robert Wessel <robertwessel2@yahoo.com> - 2012-02-08 14:12 -0600
                Re: M68k add to memory is not a mistake any more anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-02-08 14:00 +0000
                Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-02-09 11:45 -0800
                Re: M68k add to memory is not a mistake any more Brett Davis <ggtgp@yahoo.com> - 2012-02-08 13:25 -0600
              Re: M68k add to memory is not a mistake any more Stephen Sprunk <stephen@sprunk.org> - 2012-02-07 14:21 -0600
    Re: M68k add to memory is not a mistake any more Stefan Monnier <monnier@iro.umontreal.ca> - 2012-02-02 16:46 -0500
      Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-03 16:00 +0000
        Re: M68k add to memory is not a mistake any more anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-02-03 16:12 +0000
          Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-03 17:19 +0000
            Re: M68k add to memory is not a mistake any more anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-02-03 17:25 +0000
  Re: M68k add to memory is not a mistake any more jacko <jackokring@gmail.com> - 2012-02-01 05:31 -0800
  Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-01 10:21 -0800
    Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-01 19:16 +0000
      Re: M68k add to memory is not a mistake any more Robert Wessel <robertwessel2@yahoo.com> - 2012-02-01 13:34 -0600
        Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-07 17:08 -0500
      Re: M68k add to memory is not a mistake any more Anne & Lynn Wheeler <lynn@garlic.com> - 2012-02-01 14:50 -0500
      Re: M68k add to memory is not a mistake any more Brett Davis <ggtgp@yahoo.com> - 2012-02-02 02:07 -0600
        Re: M68k add to memory is not a mistake any more Piotr Wyderski <peter.pan@neverland.mil> - 2012-02-06 10:50 +0100
      Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-02 12:30 -0800
    Re: M68k add to memory is not a mistake any more Brett Davis <ggtgp@yahoo.com> - 2012-02-02 02:03 -0600
      Re: M68k add to memory is not a mistake any more nospam@ab-katrinedal.dk (Niels Jørgen Kruse) - 2012-02-02 16:15 +0100
        Re: M68k add to memory is not a mistake any more Brett Davis <ggtgp@yahoo.com> - 2012-02-02 20:53 -0600
      Re: M68k add to memory is not a mistake any more Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2012-02-02 11:16 -0700
        Re: M68k add to memory is not a mistake any more Brett Davis <ggtgp@yahoo.com> - 2012-02-02 23:10 -0600
          Re: M68k add to memory is not a mistake any more Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2012-02-02 23:54 -0700
            Re: M68k add to memory is not a mistake any more Brett Davis <ggtgp@yahoo.com> - 2012-02-12 11:42 -0600
      Re: M68k add to memory is not a mistake any more Chris Gray <cg@GraySage.com> - 2012-02-02 17:41 -0700
        Re: M68k add to memory is not a mistake any more kenney@cix.compulink.co.uk - 2012-02-03 14:23 -0600
        Re: M68k add to memory is not a mistake any more Brian Drummond <brian@shapes.demon.co.uk> - 2012-02-04 10:46 +0000
          Re: M68k add to memory is not a mistake any more Erik Trulsson <ertr1013@student.uu.se> - 2012-02-06 08:57 +0000
            Re: M68k add to memory is not a mistake any more "Marven Lee" <marven10@gmail.com> - 2012-02-06 13:12 +0000
              Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-06 14:07 +0000
              Re: M68k add to memory is not a mistake any more Nick Garnett <nickg@calivar.com> - 2012-02-06 14:29 +0000
                Re: M68k add to memory is not a mistake any more "Marven Lee" <marven10@gmail.com> - 2012-02-07 12:06 +0000
                Re: M68k add to memory is not a mistake any more Nick Garnett <nickg@calivar.com> - 2012-02-07 17:18 +0000
  Re: M68k add to memory is not a mistake any more Stephen Sprunk <stephen@sprunk.org> - 2012-02-02 15:09 -0600
    4- and 5-operand instructions (was: M68k) Mark Thorson <nospam@sonic.net> - 2012-02-02 17:29 -0800
      Re: 4- and 5-operand instructions Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-03 07:49 +0100
        Re: 4- and 5-operand instructions Mark Thorson <nospam@sonic.net> - 2012-02-03 09:36 -0800
      Re: 4- and 5-operand instructions Stephen Sprunk <stephen@sprunk.org> - 2012-02-03 23:43 -0600
      Re: 4- and 5-operand instructions "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-03 11:02 -0800
      Re: 4- and 5-operand instructions Stephen Fuld <SFuld@alumni.cmu.edu.invalid> - 2012-02-04 12:16 -0800
        Re: 4- and 5-operand instructions "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-05 13:59 -0800
          Re: 4- and 5-operand instructions MitchAlsup <MitchAlsup@aol.com> - 2012-02-05 14:38 -0800
      Re: 4- and 5-operand instructions (was: M68k) Quadibloc <jsavard@ecn.ab.ca> - 2012-02-06 12:09 -0800
    Re: M68k add to memory is not a mistake any more Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-03 07:42 +0100
      Re: M68k add to memory is not a mistake any more Stephen Sprunk <stephen@sprunk.org> - 2012-02-04 00:14 -0600
        Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-03 22:49 -0800
          Re: M68k add to memory is not a mistake any more Stephen Sprunk <stephen@sprunk.org> - 2012-02-04 10:40 -0600
            Re: M68k add to memory is not a mistake any more Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-04 20:53 +0100
              Re: M68k add to memory is not a mistake any more Stephen Fuld <SFuld@alumni.cmu.edu.invalid> - 2012-02-04 13:11 -0800
                Re: M68k add to memory is not a mistake any more Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-05 12:50 +0100
                Re: M68k add to memory is not a mistake any more Stephen Fuld <SFuld@alumni.cmu.edu.invalid> - 2012-02-08 13:39 -0800
                Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-09 11:20 -0800
                Re: M68k add to memory is not a mistake any more Stephen Fuld <SFuld@alumni.cmu.edu.invalid> - 2012-02-09 22:58 -0800
                Re: M68k add to memory is not a mistake any more Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-10 09:21 +0100
                Re: M68k add to memory is not a mistake any more Robert Wessel <robertwessel2@yahoo.com> - 2012-02-10 04:11 -0600
                Re: M68k add to memory is not a mistake any more Eric  Northup <digitaleric@gmail.com> - 2012-02-10 11:41 -0800
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-10 12:12 -0500
                Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-10 06:34 -0800
                Re: M68k add to memory is not a mistake any more Stefan Monnier <monnier@iro.umontreal.ca> - 2012-02-10 11:01 -0500
                Re: M68k add to memory is not a mistake any more Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-10 09:46 +0100
                Re: M68k add to memory is not a mistake any more anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-02-10 17:20 +0000
                Re: M68k add to memory is not a mistake any more timcaffrey@aol.com (Tim McCaffrey) - 2012-02-11 18:29 +0000
                Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-11 15:35 -0800
                Re: M68k add to memory is not a mistake any more Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-12 00:47 +0100
              Re: M68k add to memory is not a mistake any more Stephen Sprunk <stephen@sprunk.org> - 2012-02-04 17:56 -0600
                Re: M68k add to memory is not a mistake any more Brett Davis <ggtgp@yahoo.com> - 2012-02-05 02:17 -0600
                Re: M68k add to memory is not a mistake any more "Paul A. Clayton" <paaronclayton@gmail.com> - 2012-02-05 10:53 -0800
                Re: M68k add to memory is not a mistake any more Robert Wessel <robertwessel2@yahoo.com> - 2012-02-05 02:20 -0600
                Re: M68k add to memory is not a mistake any more nospam@ab-katrinedal.dk (Niels Jørgen Kruse) - 2012-02-05 11:31 +0100
                Re: M68k add to memory is not a mistake any more Stephen Sprunk <stephen@sprunk.org> - 2012-02-05 09:34 -0600
                Re: M68k add to memory is not a mistake any more nospam@ab-katrinedal.dk (Niels Jørgen Kruse) - 2012-02-05 17:06 +0100
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-05 12:06 -0500
                Re: M68k add to memory is not a mistake any more Stephen Sprunk <stephen@sprunk.org> - 2012-02-05 13:04 -0600
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-05 16:43 -0500
                Re: M68k add to memory is not a mistake any more Stephen Sprunk <stephen@sprunk.org> - 2012-02-06 09:57 -0600
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-05 14:10 -0800
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-05 13:20 -0800
                Re: M68k add to memory is not a mistake any more anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-02-06 13:12 +0000
                Re: M68k add to memory is not a mistake any more Stephen Sprunk <stephen@sprunk.org> - 2012-02-06 09:51 -0600
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-06 15:57 +0000
                Re: M68k add to memory is not a mistake any more anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-02-06 17:16 +0000
                Re: M68k add to memory is not a mistake any more Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-05 12:54 +0100
                Re: M68k add to memory is not a mistake any more jgk@panix.com (Joe keane) - 2012-02-07 00:05 +0000
                Re: M68k add to memory is not a mistake any more Stephen Sprunk <stephen@sprunk.org> - 2012-02-07 17:26 -0600
        Re: M68k add to memory is not a mistake any more Brett Davis <ggtgp@yahoo.com> - 2012-02-04 04:02 -0600
          Re: M68k add to memory is not a mistake any more Stephen Sprunk <stephen@sprunk.org> - 2012-02-04 10:14 -0600
          Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-04 09:12 -0800
            Re: M68k add to memory is not a mistake any more Brett Davis <ggtgp@yahoo.com> - 2012-02-05 03:15 -0600
            Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-06 13:54 -0500
              Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-06 20:39 +0000
                Re: M68k add to memory is not a mistake any more jgk@panix.com (Joe keane) - 2012-02-08 22:57 +0000
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-08 23:25 +0000
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-09 11:30 -0500
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-09 17:33 +0000
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-10 11:55 -0500
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-10 17:18 +0000
                Re: M68k add to memory is not a mistake any more timcaffrey@aol.com (Tim McCaffrey) - 2012-02-11 22:19 +0000
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-12 09:44 +0000
                Re: M68k add to memory is not a mistake any more timcaffrey@aol.com (Tim McCaffrey) - 2012-02-12 17:22 +0000
                Re: M68k add to memory is not a mistake any more timcaffrey@aol.com (Tim McCaffrey) - 2012-02-11 22:23 +0000
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-11 14:42 -0800
                Re: M68k add to memory is not a mistake any more timcaffrey@aol.com (Tim McCaffrey) - 2012-02-11 23:37 +0000
                Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-11 18:16 -0800
                Re: M68k add to memory is not a mistake any more timcaffrey@aol.com (Tim McCaffrey) - 2012-02-12 17:33 +0000
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-12 19:16 +0000
                Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-02-12 12:35 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-12 21:15 +0000
                Re: M68k add to memory is not a mistake any more timcaffrey@aol.com (Tim McCaffrey) - 2012-02-13 16:32 +0000
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-12 08:57 +0000
                Re: M68k add to memory is not a mistake any more Anne & Lynn Wheeler <lynn@garlic.com> - 2012-02-09 15:52 -0500
                Re: M68k add to memory is not a mistake any more "Marven Lee" <marven10@gmail.com> - 2012-02-14 11:23 +0000
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-15 13:09 -0500
                Re: M68k add to memory is not a mistake any more jgk@panix.com (Joe keane) - 2012-02-10 22:52 +0000
                Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-02-10 17:32 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-11 09:35 +0000
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-12 23:13 -0500
                Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-02-12 20:32 -0800
                Re: M68k add to memory is not a mistake any more Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-13 08:19 +0100
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-13 08:41 +0000
                Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-02-13 08:36 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-14 09:53 +0000
                Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-02-14 09:38 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-14 18:54 +0000
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-15 04:00 -0800
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-15 08:53 -0800
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-13 09:49 -0500
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-13 12:25 -0500
                Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-02-13 15:59 -0800
                Re: M68k add to memory is not a mistake any more jgk@panix.com (Joe keane) - 2012-02-15 16:29 +0000
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-15 08:57 -0800
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-15 10:29 -0800
                Re: M68k add to memory is not a mistake any more jgk@panix.com (Joe keane) - 2012-02-16 22:06 +0000
                Re: M68k add to memory is not a mistake any more John Levine <johnl@iecc.com> - 2012-02-16 22:18 +0000
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-15 12:47 -0500
                Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-21 00:00 +0000
                Re: M68k add to memory is not a mistake any more "Paul A. Clayton" <paaronclayton@gmail.com> - 2012-02-13 15:17 -0800
                Re: M68k add to memory is not a mistake any more "Paul A. Clayton" <paaronclayton@gmail.com> - 2012-02-13 16:37 -0800
                Re: M68k add to memory is not a mistake any more "Paul A. Clayton" <paaronclayton@gmail.com> - 2012-02-14 03:17 -0800
                Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-20 23:36 +0000
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-21 08:53 +0000
                Re: M68k add to memory is not a mistake any more Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-21 11:07 +0100
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-21 12:25 -0500
                Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-21 19:13 +0000
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-21 11:38 -0800
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-21 16:54 -0500
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-21 14:39 -0800
                Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-21 23:23 +0000
                Re: M68k add to memory is not a mistake any more Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-22 09:29 +0100
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-22 02:27 -0800
                Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-22 13:04 +0000
                Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-02-22 09:14 -0800
                Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-22 13:19 +0000
                Re: M68k add to memory is not a mistake any more Chris Gray <cg@GraySage.com> - 2012-02-22 13:41 -0700
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-22 10:28 -0500
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-22 08:32 -0800
                Re: M68k add to memory is not a mistake any more Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-23 07:36 +0100
                Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-22 08:15 -0800
                Re: M68k add to memory is not a mistake any more anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-02-22 16:46 +0000
                Re: M68k add to memory is not a mistake any more Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-23 07:47 +0100
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-21 19:53 +0000
                Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-22 00:05 +0000
                Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-22 08:23 -0800
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-22 08:49 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-22 18:17 +0000
                Re: M68k add to memory is not a mistake any more Stephen Fuld <SFuld@alumni.cmu.edu.invalid> - 2012-02-23 15:24 -0800
                Re: M68k add to memory is not a mistake any more timcaffrey@aol.com (Tim McCaffrey) - 2012-02-24 03:28 +0000
                Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-23 20:09 -0800
                Re: M68k add to memory is not a mistake any more Stephen Fuld <SFuld@alumni.cmu.edu.invalid> - 2012-02-24 08:53 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-24 19:27 +0000
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-24 13:07 +0000
                Re: M68k add to memory is not a mistake any more Stephen Fuld <SFuld@alumni.cmu.edu.invalid> - 2012-02-24 08:44 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-24 18:04 +0000
                Re: M68k add to memory is not a mistake any more Andrew Reilly <areilly---@bigpond.net.au> - 2012-02-24 21:18 +0000
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-24 21:23 +0000
                Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-24 09:54 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-24 18:40 +0000
                Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-24 11:15 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-24 20:49 +0000
                Re: M68k add to memory is not a mistake any more George Neuner <gneuner2@comcast.net> - 2012-02-24 17:22 -0500
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-24 22:39 +0000
                Re: M68k add to memory is not a mistake any more Andrew Reilly <areilly---@bigpond.net.au> - 2012-02-25 03:00 +0000
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-24 17:44 -0500
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-24 23:11 +0000
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-24 19:22 -0500
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-25 10:14 +0000
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-25 07:37 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-25 15:57 +0000
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-25 13:39 -0500
                Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-25 23:26 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-26 10:09 +0000
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-26 02:45 -0800
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-26 13:05 -0500
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-27 00:53 -0800
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-27 15:22 -0500
                Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-27 09:21 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-27 19:47 +0000
                Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-28 19:16 -0800
                Re: M68k add to memory is not a mistake any more Andrew Reilly <areilly---@bigpond.net.au> - 2012-02-29 05:07 +0000
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-29 10:49 -0500
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-29 10:14 +0000
                Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-29 08:28 -0800
                Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-29 08:24 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-29 16:43 +0000
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-29 09:08 -0800
                Re: M68k add to memory is not a mistake any more "Paul A. Clayton" <paaronclayton@gmail.com> - 2012-02-29 12:17 -0800
                Re: M68k add to memory is not a mistake any more Stephen Fuld <SFuld@alumni.cmu.edu.invalid> - 2012-02-27 12:23 -0800
                Re: M68k add to memory is not a mistake any more "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-28 17:12 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-29 09:09 +0000
                Re: Itanium fixed Brett Davis <ggtgp@yahoo.com> - 2012-02-27 20:33 -0600
                Re: M68k add to memory is not a mistake any more Anne & Lynn Wheeler <lynn@garlic.com> - 2012-02-25 11:15 -0500
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-25 18:10 +0000
                Re: M68k add to memory is not a mistake any more Erik Trulsson <ertr1013@student.uu.se> - 2012-02-27 08:47 +0000
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-25 12:37 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-25 21:42 +0000
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-26 21:00 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-27 09:48 +0000
                Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-27 12:01 +0000
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-27 06:02 -0800
                Re: M68k add to memory is not a mistake any more Andrew Reilly <areilly---@bigpond.net.au> - 2012-02-28 02:04 +0000
                Re: M68k add to memory is not a mistake any more Robert Wessel <robertwessel2@yahoo.com> - 2012-02-27 20:58 -0600
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-27 06:00 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-27 14:05 +0000
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-27 09:37 -0800
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-27 11:31 -0800
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-27 11:46 -0800
                Re: M68k add to memory is not a mistake any more "Paul A. Clayton" <paaronclayton@gmail.com> - 2012-02-27 17:46 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-27 19:42 +0000
                Re: M68k add to memory is not a mistake any more Bernd Felsche <berfel@innovative.iinet.net.au> - 2012-02-28 08:22 +0800
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-28 06:39 -0800
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-28 08:26 -0800
                Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-02-28 08:45 -0800
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-28 08:58 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-28 17:24 +0000
                Re: M68k add to memory is not a mistake any more Andrew Reilly <areilly---@bigpond.net.au> - 2012-02-29 00:19 +0000
                Re: M68k add to memory is not a mistake any more Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-29 09:27 +0100
                Re: M68k add to memory is not a mistake any more Bernd Felsche <berfel@innovative.iinet.net.au> - 2012-02-29 17:17 +0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-29 09:03 +0000
                Re: M68k add to memory is not a mistake any more Andrew Reilly <areilly---@bigpond.net.au> - 2012-02-29 10:39 +0000
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-29 13:10 +0000
                Re: M68k add to memory is not a mistake any more Andrew Reilly <areilly---@bigpond.net.au> - 2012-02-29 23:08 +0000
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-29 23:36 +0000
                Re: M68k add to memory is not a mistake any more George Neuner <gneuner2@comcast.net> - 2012-03-01 15:32 -0500
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-28 13:15 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-28 22:28 +0000
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-28 16:13 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-29 10:04 +0000
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-29 10:26 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-29 18:28 +0000
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-29 11:24 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-29 19:32 +0000
                Re: M68k add to memory is not a mistake any more Bernd Felsche <berfel@innovative.iinet.net.au> - 2012-03-01 03:37 +0800
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-29 12:14 -0500
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-29 18:02 +0000
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-29 13:44 -0500
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-29 19:24 +0000
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-29 16:22 -0500
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-29 22:41 +0000
                Re: M68k add to memory is not a mistake any more Andrew Reilly <areilly---@bigpond.net.au> - 2012-02-29 00:26 +0000
                Re: M68k add to memory is not a mistake any more Morten Reistad <first@last.name> - 2012-03-01 14:16 +0100
                Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-27 11:51 +0000
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-27 06:06 -0800
                Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-02-27 08:39 -0800
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-27 09:33 -0800
                Re: M68k add to memory is not a mistake any more Thomas Womack <twomack@chiark.greenend.org.uk> - 2012-02-27 19:20 +0000
                Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-02-27 14:36 -0800
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-27 15:29 -0500
                Re: M68k add to memory is not a mistake any more Quadibloc <jsavard@ecn.ab.ca> - 2012-02-27 15:57 -0800
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-27 20:42 -0500
                Re: M68k add to memory is not a mistake any more Robert Wessel <robertwessel2@yahoo.com> - 2012-02-27 21:04 -0600
                Re: M68k add to memory is not a mistake any more "Marven Lee" <marven10@gmail.com> - 2012-02-23 11:57 +0000
                Re: M68k add to memory is not a mistake any more Bernd Felsche <berfel@innovative.iinet.net.au> - 2012-02-24 00:26 +0800
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-21 02:51 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-21 11:14 +0000
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-21 03:36 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-21 11:39 +0000
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-21 03:55 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-21 12:34 +0000
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-21 15:02 -0800
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-21 03:48 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-21 11:57 +0000
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-21 05:20 -0800
                Re: M68k add to memory is not a mistake any more nmm1@cam.ac.uk - 2012-02-21 13:43 +0000
                Re: M68k add to memory is not a mistake any more Stephen Fuld <SFuld@alumni.cmu.edu.invalid> - 2012-02-21 10:04 -0800
                Re: M68k add to memory is not a mistake any more Michael S <already5chosen@yahoo.com> - 2012-02-21 05:46 -0800
                Re: M68k add to memory is not a mistake any more Anne & Lynn Wheeler <lynn@garlic.com> - 2012-02-21 09:57 -0500
                Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-02-21 08:54 -0800
                Re: M68k add to memory is not a mistake any more Anne & Lynn Wheeler <lynn@garlic.com> - 2012-02-21 14:27 -0500
                Re: M68k add to memory is not a mistake any more EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-21 13:15 -0500
                Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-21 19:36 +0000
                Re: M68k add to memory is not a mistake any more timcaffrey@aol.com (Tim McCaffrey) - 2012-02-23 01:49 +0000
                Re: M68k add to memory is not a mistake any more ChrisQ <blackhole@devnull.com> - 2012-02-26 17:45 +0000
                Re: M68k add to memory is not a mistake any more jgk@panix.com (Joe keane) - 2012-02-29 22:50 +0000
            Re: M68k add to memory is not a mistake any more "Paul A. Clayton" <paaronclayton@gmail.com> - 2012-02-04 10:04 -0800
        Re: M68k add to memory is not a mistake any more "Paul A. Clayton" <paaronclayton@gmail.com> - 2012-02-04 09:35 -0800
          Re: M68k add to memory is not a mistake any more Stephen Sprunk <stephen@sprunk.org> - 2012-02-07 14:47 -0600
            Re: M68k add to memory is not a mistake any more "Paul A. Clayton" <paaronclayton@gmail.com> - 2012-02-07 15:24 -0800
    Re: M68k add to memory is not a mistake any more MitchAlsup <MitchAlsup@aol.com> - 2012-02-03 12:58 -0800
      Re: M68k add to memory is not a mistake any more Stephen Sprunk <stephen@sprunk.org> - 2012-02-08 11:05 -0600
    Re: M68k add to memory is not a mistake any more jgk@panix.com (Joe keane) - 2012-02-07 20:04 +0000
      Re: M68k add to memory is not a mistake any more Stephen Sprunk <stephen@sprunk.org> - 2012-02-08 11:26 -0600
        Re: M68k add to memory is not a mistake any more Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-09 08:09 +0100
          Re: M68k add to memory is not a mistake any more Robert Wessel <robertwessel2@yahoo.com> - 2012-02-09 06:23 -0600
            Re: M68k add to memory is not a mistake any more Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-09 19:19 +0100
              Re: M68k add to memory is not a mistake any more Robert Wessel <robertwessel2@yahoo.com> - 2012-02-09 22:54 -0600
          Re: M68k add to memory is not a mistake any more Stephen Sprunk <stephen@sprunk.org> - 2012-02-09 08:14 -0600
            Re: M68k add to memory is not a mistake any more Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-09 19:11 +0100

csiph-web