[Vm-dev] [Pharo-dev] NB and assembly methods (WAS: a lot of non-constructive things I refuse to talk about :)

[Eliot Miranda]

On Tue, Feb 11, 2014 at 1:57 PM, Esteban Lorenzano <estebanlm at gmail.com>wrote:

>
>
> On 11 Feb 2014, at 20:08, Eliot Miranda <eliot.miranda at gmail.com> wrote:
>
> Hi Igor,
>
>
> On Tue, Feb 11, 2014 at 7:16 AM, Igor Stasenko <siguctua at gmail.com> wrote:
>
>>
>> On 11 February 2014 10:56, Esteban Lorenzano <estebanlm at gmail.com> wrote:
>>
>>> >
>>> > PS. I am hacking on protobuf in Pharo 3.0 and noticed cool NB
>>> assembler in some places - are such methods creeping into base libraries
>>> now? What does that mean for other CPUs? Sorry, for changing subject - feel
>>> free to reply under different subject.
>>>
>>> Hi Goran,
>>>
>>> Yes... since NB and Athens, there are some methods in assembler spread
>>> around. Is my opinion that all assembler-containing methods should be
>>> refactored into a more comprensible unit (and that can be changed by
>>> another set of assembly instrucction when we achieve multiplatform-NB).
>>> Today they are all along Athens, and if we continue this path they will be
>>> all along Pharo soon. I would better modularise that.
>>> But Igor maybe has something different to say :)
>>>
>>> Esteban
>>>
>>
>> not much to add to what i already been said:
>>  - have any other CPU which can run pharo JIT? No? Will talk when it will
>> be available.
>>
>
> There's an unfortunate chicken-and-egg problem here.  The way we develop a
> new platform with Cog is to build a simulator for the CPU and run the VM
> simulator above the CPU simulator.  But, by making Pharo non-portable
> because NB only works on x86 you've made it extremely difficult to use a
> Pharo image to develop the new platform.  That will be really important
> when x86-64 comes into the picture, which it shoudl sometime later this
> year.  In fact its worse.  Because there is no simulator support for NB I
> can't even start up a Pharo image on the current simulator and that's
> directly affecting my ability to sup[port Clément in the Sista work.   Note
> that we already have an ARM simulator and unfortunately Pharo can't run on
> that simulator either.  Some way of making NB get out of the way except on
> x86 until it is portable would be much appreciated.
>
>
> Eliot, I made NB optional in Pharo3... you should not have problems (from
> that side) to simulate the image. But I'm also willing to help in anything
> else that is needed. Just point me your problem and I will try to solve it
> :)
>

thanks Esteban!


-- 
best,
Eliot
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