we are interested in a Smalltalk based image writer too :)
So far we did not went far and just focus on playing with SystemDictionary

Hi All,
> 
> I'm looking for information on the image file format, something that tells me 
> the layout.
> A little like this:
> 
> +--------+
> ! version !
> +--------+
> ! count   !
> +--------+
> 
> etc. I can glean this information from the Squeak C sources but I'm wanting 
> some 
> additional information for validation. Maybe it is in the blue book but I 
> have also read 
> that Squeak varies on this a little.
> 
> Also - what is a Compact Class Array section of the image file?

Compact classes are classes whose representation is optimized and normally you 
can have up to 
5 bits (32) compact classes in the system. I reminder that eliot mentioned that 
he would like to 
kill compact classes. Would be good to have a system less complex.

Stef

> 
> Rgs, James.
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