> On 18 Jul 2015, at 01:31, Eliot Miranda <eliot.miranda at gmail.com> wrote:
> 
> Hi David,
> 
> On Fri, Jul 17, 2015 at 3:22 PM, David <stormbyte at gmail.com <mailto:stormbyte at gmail.com>> wrote:
> I did not see any progress over the time in making a (stable) release
> of pharo in 64 bit flavor.
> 
> For servers, it is a common practice (and also a good one if no 32bit
> executables are planned) to completelly disable 32bit support (by not
> compiling any library in 32bit, disabling emulation of 32bit in
> kernel), and also performance, as under 64bit, 32bit code runs slightly
> slower.
> 
> The above make enough reasons to make it interesting to have a 64bit
> version of pharo, but... Is it intended/in progress? Or nothing really
> at the moment?
> 
> 64-bit development of Spur is in progress.  There is a somewhat functional 64-bit Squeak Spur image and a functional Linux 64-bit Stack interpreter.  Coincidentally I'm currently working on an input event processing bug which only occurs in the real VM.  You may know that the next release of Pharo (Pharo 6?) is intended to be a Spur release. 

The idea is that we will do a Pharo4s in the fall that is just Pharo4+Spur. Pharo5 (next release) in spring 2016 will be based on spur of course, too.
This has in addition lots image side improvements… e.g.
- new text editor
- the MetaLink model for behavioral reflection 
- breakpoints
- First class Variables usable, but not yet used in the image
- …. lots more

> Esteban Lorenzano is working on the Pharo Spur bootstrap.  I am working in Squeak and my priorities are first, to get the Spur Squeak 64-bit image working fully on the Stack Interpreter and then to work on an x64 JIT VM.  I expect that by the time Pharo 6 is ready to release, the 64-bit version will also be ready.
> 
Yes, we might then again do a Pharo5s that is Pharo5+64bit Spur… because Pharo6 will be a HUGE step: It will be based
on Bloc, the replacement of Morphic  that is now under active development. On top of Bloc there will be a complete, clean,
modern set of widgets, a new text model and the next iteration of GT tools based on all that. 

	Marcus

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