[Vm-dev] Simulating trunk6.image in Spur64VMMaker

[K K Subbu]

On 10/02/20 8:59 PM, Eliot Miranda wrote:
> If you want to develop specific primitives, optimizations, etc, that are 
> invoked from specific Smalltalk expressions you'll find simulating the 
> "reader" image, which contains a Real-Eval-Print Loop (a REPL), much 
> easier than trying to interact with the desktop through the world menu.

Thank you very much for your quick and detailed response. I created a swiki:

  http://wiki.squeak.org/squeak/6640
  http://wiki.squeak.org/squeak/79 (updated)

> It is also perfectly repeatable.  Another approach is to save the image 
> using a doit and have that doit include, after the snapshot, the code 
> you want to run.  Another technique that saves time is to save the image 
> containing the simulator with an open simulator having reached some 
> point, such as the start of a garbage collection. You can then rerun the 
> code you're interested in my reloading the image and continuing the 
> simulator.

I saw Clement's excellent video at https://youtu.be/hctMBGAXVSs and his 
blog https://clementbera.wordpress.com/2016/05/30/simulating-the-cog-vm/

>     What are the options if I want to open V3 images in this simulator?
> 
> 
> Just change  ObjectMemory Spur32BitMemoryManager to ObjectMemory 
> NewObjectMemory

I could'nt get the simulator to open 6502/6504 images. I got 
'incomaptible image format' error [sic]. When I tried with ObjectMemory, 
I got a MNU on coInterpreter in initialize.

Regards .. Subbu