[Vm-dev] Pre-Spur -> Spur transition
Esteban Lorenzano
estebanlm at gmail.com
Mon Nov 23 12:09:18 UTC 2015
> On 23 Nov 2015, at 09:01, Eliot Miranda <eliot.miranda at gmail.com> wrote:
>
> Hi Ken,
>
>
>
> _,,,^..^,,,_ (phone)
> On Nov 22, 2015, at 6:43 PM, KenD <Ken.Dickey at Whidbey.com <mailto:Ken.Dickey at whidbey.com>> wrote:
>
>> Greetings,
>
> welcome!
>
>
>> I though to take a look at transitioning a Cuis image into Spur format.
>
> Great!
>
>> I presume there is a Smalltalk package which either runs in an old VM and writes the active image into the Spur format or code for a Spur image which reads the old format.
>
> Yes, the Sour bootstrap is in the Cog package which is where I put support code for the VMMaker.oscog package, which is where the Cog VM lives.
>
>> [1] Where would I locate this code?
>
> There are scripts to build a Cog VMMaker image and to run the Squeak 4.5 to Spur conversions in http://www.squeakvm.org/svn/squeak/branches/Cog/image <http://www.squeakvm.org/svn/squeak/branches/Cog/image>. See http://www.mirandabanda.org/cogblog/build-image/ <http://www.mirandabanda.org/cogblog/build-image/>
>
> You'll want to redefine the GetGoodVM.sh or GetGoodSpurVM.sh scripts to run the relevant VM (if I recall the names correctly).
>
>> [2] Is there a Non-Cog Spur VM available? [Chromebook currently does page protect to disallow JIT]
>
> Yes. In http://www.squeakvm.org/svn/squeak/branches/Cog/ <http://www.squeakvm.org/svn/squeak/branches/Cog/image>spurstacksrc is a non-Cog Spur VM and there are pre-configured builds for it in eg http://www.squeakvm.org/svn/squeak/branches/Cog/ <http://www.squeakvm.org/svn/squeak/branches/Cog/image>build.linux32x86/squeak.stack.spur
>
>
> Note that VMMaker.oscog /should/ load and run in non-Spur squeak but I've not tried this for over a year now.
I needed to do some minor changes (very minor) for doing it in Pharo… I’m quite sure you will need them also for Squeak, but I do not think is necessary if what you want is to bootstrap a cuis-spur… you can always do it from a squeak-spur.
Esteban
>
>
>> Thanks much,
>> -KenD
>
>
> Perhaps some time we can discuss what's necessary to get Cog VMs running on Chromebooks. Is it a matter of doing the entry into machine code appropriately or is there a deal breaker or...?
>
> _,,,^..^,,,_ (phone)
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