VM porting problems
ducasse at iam.unibe.ch
Tue Dec 7 20:32:54 UTC 2004
this is an excellent news :)
Keep going I hope that people will help you. Because not having squeak
on Palm was always a sad reality for me.
> I'm working on porting the 3.7 VM to Palm OS 6.0 (the 6.0 OS removes
> lots of restrictions in previous versions of the OS that make it
> difficult to support Squeak).
> Here's the problem I'm having. I've got a VM built which implements
> all the necessary io routines, including ioScreenSize, ioShowDisplay.
> The problem is that ioShowDisplay is never called. Others are, like
> One thing I tried to track down the problem was to build a VM for my
> Mac OS X machine. My plan was to load the identical image and look at
> the bytecodes that were executed, figuring out where it started to
> differ from the Palm OS version.
> I used the unix sources and successfully built a VM that contains only
> the MiscPrimitives internal plugin. Otherwise, there are no other
> plugins selected in VMMaker (internal or external). When I run the VM,
> it exhibits similar behavior. The image loads and starts executing.
> Some functions are called, like display_ioScreenSize, but
> display_ioShowDisplay is never called.
> Any ideas what's going on? I'm tending to think I'm missing a
> necessary plugin from both VMs.
> Or, if I can get an idea what Smalltalk code is executed when an image
> is loaded, I can connect the Smalltalk code with the corresponding
> calls into the VM and figure out why the Smalltalk code doesn't every
> call ioShowDisplay.
> Neil Rhodes
> Palm OS Certified Developer
> Co-author: Palm Programming: the Developer's Guide
> Available for contract programming
> neil at pobox.com
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