[Vm-dev] How to convert 32-bit images to 64-bit images?

John M McIntosh johnmci at smalltalkconsulting.com
Sat Apr 24 06:06:21 UTC 2021

10 Years back Dan provided a system tracer to convert Squeak images from 32 bit PowerPC to 64 bit intel. I recall spending a few days resolving an issue where the floating point endian wasn’t correct for some FP situations. So check the archives for a post from him with regard to 64 bit. I also built a number of vm variations, perhaps an image from there is useful? ftp://smalltalkconsulting.com/experimental/64bit/

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On Fri, Apr 23, 2021 at 22:50, stes at PANDORA.BE <stes at telenet.be> wrote:

> Hi Marcel,
> The reference in http://wiki.squeak.org/squeak/2315 (last paragraph),
> I read the info in the "The Interactive Programming Environment" red book,
> by Adele Goldberg: it says in 23.4 page 487
> "To initiate the VMem-write, evaluate the expression
> SystemTracer writeClone"
> Anyway I have not yet been succesful in running converted 64bit images,
> but if you have done it, I'd be interested in this.
> Also the above SystemTracer writeClone which according to the red book,
> worked in old Smalltalk systems, does not work for me nowadays.
> I get the error: SmalltalkImage allBehaviorsDo: message not understood.
> in Squeak4.6.
> In Squeak6.0 with the Cog VM I get a subscript out of bounds in clamp:
> I think writeClone and clamp: are messages from the SystemTracer package.
> David Stes
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