[Vm-dev] how can I build a sista spur 64 vm?

[Robert]

Hi Dave,

I thought I saw something about it. This is great! I'm git stupid, how can I force merge with git to pull the latest vm code, to overwrite my locally generated files? Which version of VMMaker is appropriate?

quotar at ganymede:~/tribe/opensmalltalk-vm$ git pull
remote: Enumerating objects: 619, done.
remote: Counting objects: 100% (619/619), done.
remote: Compressing objects: 100% (61/61), done.
remote: Total 645 (delta 523), reused 617 (delta 521), pack-reused 26
Receiving objects: 100% (645/645), 8.11 MiB | 2.30 MiB/s, done.
Resolving deltas: 100% (526/526), completed with 117 local objects.
From https://github.com/OpenSmalltalk/opensmalltalk-vm
   1861db582..00de58438  Cog        -> origin/Cog
 * [new tag]             202003021730 -> 202003021730
Updating 1861db582..00de58438
error: Your local changes to the following files would be overwritten by merge:

I'm excited!

Kindly,
mumbles

On 3/24/20 2:40 PM, David T. Lewis wrote:

> Hi Cl??ment,
>
> Sista works fine on 64 bits :-)
>
> Eliot added the necessary image support to Squeak, based on your eariler
> Pharo implementation. We switched Squeak trunk over to Sista in trunk
> a few weeks ago, and have had no problems at all. All Squeak development
> is proceeding with Sista as the default bytecode, and most of us are
> on 64-bits.
>
> So thank you!
> Dave
>
> On Tue, Mar 24, 2020 at 06:58:37PM +0100, Cl??ment B??ra wrote:
>
>> Hi Robert,
>>
>> I worked on sista and I don't think I have ever tried it on 64 bits. I run
>> my experiments on x86. My expectation for 64 bits is that you have to write
>> build files inspired from the 32 bits
>> sista.spur and the 64 bits cog.spur files. Then you have to run it in the
>> VM simulator and fix the various few problems you see (likely a few
>> instructions are not implemented in the
>> x64 back-end). Then you can build a system. It's not so much work.
>>
>> There was a released alpha version of Sista [1], which I used to run the
>> benchmark of a research paper [2]. If you compile a VM with sources from
>> that time (recent sources have difference
>> that will break it), and follow the guidelines from the blog post [1], you
>> should be able to reproduce the benchmark results from the paper.
>>
>> As I remember it, most benchmarks run without crashes at 1.5x and the
>> development tools could be run for a while without crashes. Debugging and
>> on-the-fly code changes in sista are
>> only partially implemented (there's the potential to do it, but one has to
>> implement it). I would say it is currently in a similar state as the
>> strongtalk VM [3], while being compatible with
>> Squeak and other Cog clients.
>>
>> I don't know what you mean by operational. If you're looking to experiment
>> with it, tweak it to run some benchmarks, then you should be able to do it.
>> If you're looking to deploy an application
>> on a production VM, then significant work is left to do so (discuss
>> directly with Eliot if that is the case).
>>
>> Have fun with the project :-)
>>
>> [1]
>> https://clementbera.wordpress.com/2017/07/19/sista-open-alpha-release/
>> [2]
>> https://hal.inria.fr/hal-01596321/
>> [3]
>> http://strongtalk.org/
>> On Mon, Mar 23, 2020 at 3:43 PM Robert
>> [<robert.withers at pm.me>](mailto:robert.withers at pm.me)
>> wrote:
>>
>>> I understand that Sista is operational. I would like to try. How can I
>>> build a Sista vm? I went to linux64x64/squeak.sista.spur and there is a
>>> file there NotYetImplemented.
>>>
>>> I appreciate any guidance.
>>>
>>> --
>>> Kindly,
>>> Robert
>>
>> --
>> Cl??ment B??ra
>> https://clementbera.github.io/
>>
>> https://clementbera.wordpress.com/

--
Kindly,
Robert
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