[Vm-dev] Simulating the Cog V3 VM

[Juan Vuletich]

On 5/11/2016 9:05 PM, David T. Lewis wrote:
>
> On Wed, May 11, 2016 at 04:46:32PM -0700, tim Rowledge wrote:
>>
>>> On 11-05-2016, at 4:17 PM, Levente Uzonyi<leves at caesar.elte.hu>  wrote:
>>>
>>> Spur support has been added to SystemTracer a while ago.
>>> http://www.squeaksource.com/SystemTracing.html
>> Excellent; looks like other-Tim got to it and seems to have made something working. So, why isn???t that the solution to migrating Cuis?
>>
> Because it is not just a matter of converting the existing object memory,
> there are also changes in the image.
>
> Regarding SystemTracer, this is a nice light-weight approach to doing
> the conversion, but Eliot's bootstrap process that uses the simulation
> machinery in VMMaker has a lot of advantages too.

I understand. But in any case, have you, Levente, David or anyone else 
produced a spur image that can start, using SystemTracer?

If so, using what subject image? And what host image?

Thanks!
Juan Vuletich

> In addition to Eliot's documentation of the image bootstrap process, you
> can also get a rough idea of the image-side differences by looking at
> the four packages in this repository from your up to date trunk Spur
> image:
>
>    MCHttpRepository
> 	location: 'http://www.squeaksource.com/TrunkUpdateStreamV3'
> 	user: ''
> 	password: ''
>
> This overstates the differences needed for bootstrapping a V3 image
> to Spur, but it does give a sense of where the differences lie.
>
> Dave
>
>