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Groups > comp.arch.embedded > #26041
| From | Dimiter_Popoff <dp@tgi-sci.com> |
|---|---|
| Newsgroups | comp.arch.embedded |
| Subject | Re: Language feature selection |
| Date | 2017-03-13 00:36 +0200 |
| Organization | TGI |
| Message-ID | <oa4iaj$6db$1@dont-email.me> (permalink) |
| References | (9 earlier) <oa0v3v$cl0$1@gioia.aioe.org> <oa1kes$9lm$1@dont-email.me> <oa3qfe$16oc$1@gioia.aioe.org> <oa4609$qm4$1@dont-email.me> <oa4f2p$r0k$1@dont-email.me> |
On 12.3.2017 г. 23:40, Don Y wrote:
> Hi Dimiter,
>
> On 3/12/2017 12:05 PM, Dimiter_Popoff wrote:
>> On 12.3.2017 г. 17:45, Walter Banks wrote:
>>> On 2017-03-11 1:53 PM, Don Y wrote:
>>>>> It is our generation that is obsessed with optimization execution and
>>>>> data space.
>>>>
>>>> Agreed (as I stated elsewhere). But this is only natural given our
>>>> "upbringing" -- in much the same way that folks who lived through
>>>> The Great Depression are far less likely to discard items than those
>>>> who grew up in "times of plenty".
>>>>
>>>> And, while hardware has grown cheaper and more capable over the years,
>>>> you still don't see 32b CPU's in *mice* or debouncing keys in
>>>> keyboards!
>>>
>>> Developers have discovered that updating old 8 bit applications to run
>>> on modern 32 bit general purpose processors have had a hidden cost.
>>> Some applications are better suited to small processors for code size
>>> and a variety of things emi from chips due to increased width of the
>>> data buses and board layout issues.
>
>> I had - still have - some work done in the 80-s I don't have to part
>> with. It was done on a 6809 (under MDOS, the OS which used to run
>> on Motorola's Exorsiser systems, back then I ran it on hardware I had
>> built with ROM (BIOS as they now have it) I had written).
>> So what did it cost me? A few weeks of work to emulate the 6809
>> system I had on a Power architecture processor running under DPS.
>> 46 kilobytes of code; this includes a terminal emulation (my graphics
>> terminal I had designed back then), can be run in multiple instances
>> in multiple windows - and runs about 50 times faster than the original
>> 2MHz 09 ran (in fact than two of them, one was in the graphics
>> terminal, interfaced via a parallel FIFO-ed cable to the system board;
>> the terminal board was not emulated as if running on a 6809, just
>> its functionality (was easier using the dps graphics services)).
>>
>> The silicon all this can run on is certainly cheaper than it
>> could have been back in the 80-s with the 6809...
>>
>> I am not contradicting your point of course, I am sure the hidden
>> costs you refer to do exist. But this is probably when people
>> try to replicate a device programmed 30 years ago cleanly with
>> some new high level language stuff put together by todays
>> popular methods (which are very messy in my book by this is
>> another matter).
>
> I think the point is the assumptions that are inherent in the
> original ("crippled", by today's standards) implementations.
> Non-standard data types, hand-optimization that doesn't lend
> itself to a newer processor or language, etc.
>
> I always cringed when I had to maintain a "small system" that
> someone else had designed/implemented... no way to know what hacks
> he relied on in his design (that aren't documented, of course!)
> As a result, I would strongly resist the temptation to "fix"
> outrageously bad implementations unless the effort was required
> for me to implement the changes contracted. I'd never know if
> some change would break something of which I was unaware!
Hi Don,
my point is that instead of trying to "port" the old code it is
much easier to simply emulate the old processor instruction set
_completely_, like I did with the 6809. People just overlook
it. And, like I said, the entire thing was 45 kilobytes (and the
actual processor emulation is a fraction of that) of PPC code....
Even the 6809 - a fairly complex 8 bit CPU - was quite easy
to emulate on a Power architecture processor with its huge
register set, all registers being larger than those to emulate etc.
And processors of that era tend to be well documented, at least
those I know (Motorolas) used to be.
As long as the original code does not do timing loops
everything runs just fine. If there are timing loops well,
they have to be taken care of. Not hard to locate.
Then emulating on a much faster CPU makes life easier;
you can just include some virtual machinery in the emulation,
e.g. trap read/writes to old peripheral addresses and handle
them on the new CPU using its peripherals - and its power
(I did not do that IIRC, I just modified a little the ROM
entry points - did have the sources as I had written it - so
that say for disk accesses via the old floppy disk controller
the thing traps and uses a memory image for a floppy disk
(the largest one was 512 kilobytes....).
A 400 MHz Power core (603e derivative) runs about 50 times
faster than two 2 MHz 6809 CPU-s could run in parallel,
without the emulation being particularly tricky or pushed,
just the old processor took a lot of cycles to do things.
They all did.
Mind you, I have done the "porting" as well - when performance
mattered. This is how I started vpa - it assembled CPU32 sources
into PPC object code. The effort did not take me a few weeks
as it did with the 6809 emulation, it took me about _a year_,
the vpa sources are 880 kilobytes - I have been progressing at
half my average programming rate which is about 150k/month...
Much much harder than the emulation (well, this was the tool
creation of course, not really comparable the two things).
Dimiter
------------------------------------------------------
Dimiter Popoff, TGI http://www.tgi-sci.com
------------------------------------------------------
http://www.flickr.com/photos/didi_tgi/
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Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-05 16:03 -0700
Re: Language feature selection Wouter van Ooijen <wouter@voti.nl> - 2017-03-06 08:04 +0100
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-07 10:31 -0700
Re: Language feature selection Wouter van Ooijen <wouter@voti.nl> - 2017-03-07 23:29 +0100
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-08 02:49 -0700
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-08 13:18 +0100
Re: Language feature selection Wouter van Ooijen <wouter@voti.nl> - 2017-03-08 16:58 +0100
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-08 10:35 -0700
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-08 22:07 +0100
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-06 08:40 +0100
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-06 10:31 +0100
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-06 08:47 -0700
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-06 21:33 +0100
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-06 13:44 -0700
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-07 12:24 +0100
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-07 09:34 -0700
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-08 10:14 +0100
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-08 10:37 -0700
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-08 22:09 +0100
Re: Language feature selection Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2017-03-06 22:50 +0200
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-07 12:31 +0100
Re: Language feature selection rickman <gnuarm@gmail.com> - 2017-03-07 14:45 -0500
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-06 08:39 +0000
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-06 08:39 -0700
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-06 17:27 +0000
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-06 13:30 -0700
Re: Language feature selection Dimiter_Popoff <dp@tgi-sci.com> - 2017-03-06 11:11 +0200
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-06 13:38 -0700
Re: Language feature selection Dimiter_Popoff <dp@tgi-sci.com> - 2017-03-07 12:18 +0200
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-07 10:28 -0700
Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-06 13:33 -0500
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-06 13:36 -0700
Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-06 22:15 -0500
Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-06 22:22 -0500
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-07 00:27 -0700
Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-08 12:20 -0500
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-08 11:23 -0700
Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-10 13:43 -0500
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-10 16:49 -0700
Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-11 04:17 -0500
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-11 12:33 -0700
Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-12 18:08 -0400
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-12 17:25 -0700
Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-15 21:05 -0400
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-16 17:23 -0700
Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-17 23:59 -0400
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-17 23:25 -0700
Re: Language feature selection Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2017-03-18 12:05 +0200
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-18 04:04 -0700
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-18 04:39 -0700
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-18 03:55 -0700
Re: Language feature selection upsidedown@downunder.com - 2017-03-18 16:00 +0200
Re: Language feature selection Les Cargill <lcargill99@comcast.com> - 2017-03-11 16:35 -0600
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-11 15:39 -0700
Re: Language feature selection Grant Edwards <invalid@invalid.invalid> - 2017-03-06 18:59 +0000
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-06 12:36 -0700
Re: Language feature selection Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2017-03-07 19:02 +0000
Re: Language feature selection Grant Edwards <invalid@invalid.invalid> - 2017-03-07 19:18 +0000
Re: Language feature selection Grant Edwards <invalid@invalid.invalid> - 2017-03-07 19:19 +0000
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-07 12:38 -0700
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-07 22:10 -0600
Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-07 20:35 -0800
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-08 20:43 -0600
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-07 23:48 -0700
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-08 20:48 -0600
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-08 21:15 -0700
Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-09 01:33 -0800
Re: Language feature selection Grant Edwards <invalid@invalid.invalid> - 2017-03-09 14:47 +0000
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-09 16:40 +0100
Re: Language feature selection Grant Edwards <invalid@invalid.invalid> - 2017-03-09 16:15 +0000
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-09 22:04 +0100
Re: Language feature selection John Devereux <john@devereux.me.uk> - 2017-03-10 07:46 +0000
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-10 13:21 +0100
Re: Language feature selection Les Cargill <lcargill99@comcast.com> - 2017-03-09 17:57 -0600
Re: Language feature selection Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2017-03-10 11:16 +0200
Re: Language feature selection Jacob Sparre Andersen <jacob@jacob-sparre.dk> - 2017-03-10 20:39 +0100
Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-10 13:32 -0800
Re: Language feature selection Niklas Holsti <niklas.holsti@tidorum.invalid> - 2017-03-11 14:58 +0200
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-13 13:02 +0100
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-08 10:46 +0100
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-08 20:33 -0600
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-09 11:08 +0100
Re: Language feature selection Britt <britt.snodgrass@gmail.com> - 2017-03-09 07:04 -0800
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-09 16:36 +0100
Re: Language feature selection Grant Edwards <invalid@invalid.invalid> - 2017-03-09 16:11 +0000
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-09 12:06 -0600
Re: Language feature selection Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2017-03-09 19:26 +0100
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-09 22:08 +0100
Re: Language feature selection Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2017-03-09 19:04 +0000
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-09 15:34 -0700
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-09 15:40 -0700
Re: Language feature selection Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2017-03-10 14:19 +0000
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-10 11:10 -0700
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-10 11:49 -0700
Re: Language feature selection Les Cargill <lcargill99@comcast.com> - 2017-03-09 18:00 -0600
Re: Language feature selection Les Cargill <lcargill99@comcast.com> - 2017-03-09 17:54 -0600
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-09 18:54 -0600
Re: Language feature selection Grant Edwards <invalid@invalid.invalid> - 2017-03-10 04:07 +0000
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-10 08:07 -0600
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-10 13:59 +0100
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-10 08:17 +0000
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-10 11:24 -0700
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-10 19:09 +0000
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-10 12:33 -0700
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-10 23:25 +0000
Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-10 20:22 -0500
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 01:32 +0000
Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-10 18:16 -0800
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 09:59 +0000
Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-11 02:23 -0800
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 11:13 +0000
Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-11 14:28 -0500
Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-11 17:20 -0500
Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-12 16:26 -0400
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-12 21:46 +0100
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-12 23:15 +0000
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-13 14:14 -0400
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-13 18:48 +0000
Re: Language feature selection "Brian G. Lucas" <bagel99@gmail.com> - 2017-03-13 15:17 -0500
Re: Language feature selection Niklas Holsti <niklas.holsti@tidorum.invalid> - 2017-03-13 23:17 +0200
Re: Language feature selection "Brian G. Lucas" <bagel99@gmail.com> - 2017-03-13 17:27 -0500
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-13 17:10 -0700
Re: Language feature selection Niklas Holsti <niklas.holsti@tidorum.invalid> - 2017-03-14 10:11 +0200
Re: Language feature selection "Brian G. Lucas" <bagel99@gmail.com> - 2017-03-14 12:23 -0500
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-14 13:27 +0100
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-14 13:30 -0400
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-14 22:03 +0100
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-14 17:24 -0400
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-11 07:19 -0600
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 19:43 +0000
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-12 09:28 -0600
Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-12 15:15 -0400
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-12 19:38 +0000
Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-10 18:08 -0800
Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-11 04:22 -0500
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 10:02 +0000
Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-11 02:22 -0800
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 11:07 +0000
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-10 14:30 -0600
Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-10 13:37 -0800
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-10 16:30 -0600
Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-10 18:14 -0800
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-11 07:46 -0600
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-11 12:53 -0700
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-12 09:45 -0600
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-12 11:56 -0700
Re: Language feature selection Dimiter_Popoff <dp@tgi-sci.com> - 2017-03-12 21:05 +0200
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-12 14:40 -0700
Re: Language feature selection Dimiter_Popoff <dp@tgi-sci.com> - 2017-03-13 00:36 +0200
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-12 17:00 -0700
Re: Language feature selection Robert Wessel <robertwessel2@yahoo.com> - 2017-03-13 16:50 -0500
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-13 17:08 -0700
Re: Language feature selection Robert Wessel <robertwessel2@yahoo.com> - 2017-03-13 20:51 -0500
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-13 20:31 -0700
Re: Language feature selection Robert Wessel <robertwessel2@yahoo.com> - 2017-03-14 21:45 -0500
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-14 21:16 -0700
Re: Language feature selection Les Cargill <lcargill99@comcast.com> - 2017-03-11 16:40 -0600
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-10 15:10 -0700
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-10 16:42 -0600
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-10 17:02 -0700
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 00:46 +0000
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-11 13:05 -0700
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 21:58 +0000
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-11 15:19 -0700
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 23:27 +0000
Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-10 20:14 -0600
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-11 12:16 -0700
Re: Language feature selection Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2017-03-10 20:40 +0100
Re: Language feature selection Wouter van Ooijen <wouter@voti.nl> - 2017-03-10 22:28 +0100
Re: Language feature selection Jacob Sparre Andersen <jacob@jacob-sparre.dk> - 2017-03-10 20:03 +0100
Re: Language feature selection Grant Edwards <invalid@invalid.invalid> - 2017-03-10 19:48 +0000
Re: Language feature selection Jacob Sparre Andersen <jacob@jacob-sparre.dk> - 2017-03-13 21:25 +0100
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-10 13:03 -0700
Re: Language feature selection Jacob Sparre Andersen <jacob@jacob-sparre.dk> - 2017-03-13 21:40 +0100
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-13 14:35 -0700
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-14 01:06 +0000
Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-13 19:23 -0700
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-14 08:48 +0000
Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-14 02:14 -0700
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-14 09:33 +0000
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-14 09:21 -0700
Re: Language feature selection Les Cargill <lcargill99@comcast.com> - 2017-03-17 06:01 -0500
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-17 11:39 +0000
Re: Language feature selection Les Cargill <lcargill99@comcast.com> - 2017-03-17 07:16 -0500
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-17 13:49 +0000
Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-17 11:03 -0700
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-17 19:21 +0100
Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-17 11:34 -0700
Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-17 20:26 +0100
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-17 20:07 +0000
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-17 20:29 +0000
Re: Language feature selection Les Cargill <lcargill99@comcast.com> - 2017-03-17 19:19 -0500
Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-18 08:18 +0000
Re: Language feature selection Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2017-03-14 21:20 +0100
Re: Language feature selection jim.brakefield@ieee.org - 2017-03-10 18:46 -0800
Re: Language feature selection Niklas Holsti <niklas.holsti@tidorum.invalid> - 2017-03-11 15:41 +0200
Re: Language feature selection jim.brakefield@ieee.org - 2017-03-11 14:20 -0800
Re: Language feature selection upsidedown@downunder.com - 2017-03-12 00:54 +0200
Re: Language feature selection jim.brakefield@ieee.org - 2017-03-12 18:08 -0700
Re: Language feature selection upsidedown@downunder.com - 2017-03-13 23:36 +0200
Re: Language feature selection Robert Wessel <robertwessel2@yahoo.com> - 2017-03-13 17:03 -0500
Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-11 14:21 -0700
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