Andreas Raab wrote:
> 
> > This compatibility is something the whole VM team worked hard
> > to preserve during those early years (and there *are* subtle
> > problems nonetheless, but all fixable with simple fileIns).
> 
> I know - that's why I want to assemble "authentic VMs" alongside the image
> versions.
> 
> > Assuming we go ahead with the changes for Version 4 (which I
> > think is worth doing for a number of reasons), I plan to produce
> > a SystemTracer capable of producing a version 4 clone from every
> > any old Squeak back to 1.0.
> 
> Ah, but that's not the same as running the *actual* image ;-) The only true
> experience is when you have one that is dated 9/24/96 and where the source
> file boldly claims 'From Smalltalk-80 version 1.03 of July 31, 1996 on 20
> September 1996 at 10:50:05 am'! :-)
Yes, maybe the simulator should be modified to run 32 bit images as well
as 
64 bit ones and when the 64 bit mashines get really fast, one can run
the 32 bit 
images in the simulator without noticing
.