[Vm-dev] Simulator tutorial

[Eliot Miranda]

Hi Chris,

    how about we meet v soon and u show you how straight forward it is, and you make a new video.  I feel frustrated (& worse; the phrase FUD comes to mind) to read messages like Ben's and your's, when the http://www.mirandabanda.org/cogblog/build-image/ page documents how to build a VMMaker image via a script, and when the built image includes a workspace with doits for launching the simulator in many configurations.

:-(

_,,,^..^,,,_ (phone)

> On Apr 7, 2016, at 6:02 AM, Chris Cunnington <brasspen at gmail.com> wrote:
> 
> I’m happy to see that people are still watching that video of mine. 
> I made it work, sort of, by using very old images. I think it’s 2.2 or something. 
> 
> To my knowledge the simulator is broken and unusable. Like Alien FFI, it’s something you hear about, assume is a real thing, and then eventually find out it is not. In the hands of experts? Yes. But neither the simulator nor Alien is a mass market product. 
> 
> The simulator does not work with the Interpreter vm with any image. The simulator works for Cog if you are an expert. 
> I’d be utterly fascinate if somebody could prove me wrong on this. I’d probably make a new video. 
> 
> Let me put it this way: 
> https://www.youtube.com/watch?v=6-gJMs6DwuE
> 
> Chris 
> 
>> On Apr 7, 2016, at 8:53 AM, Ben Coman <btc at openinworld.com> wrote:
>> 
>> 
>> One of the advertised niceties is running the VM in a simulator.  I've
>> been wondering for a while how to try it.  I found this ancient
>> tutorial...
>>  https://www.youtube.com/watch?v=2J1yjWtuwJU
>> which saves current image as 'source.image'
>> then in original image does...
>>    (InterpreterSimulatorLSB new openOn: 'source.image') test
>> as advised at 2:15, but I get "Error: basicNew: failed"
>> at the line methodCache := Array new: MethodCacheSize.
>> where MethodCacheSize is nil.
>> 
>> Is this still the correct way to invoke the simulator?
>> 
>> I tried also "(StackInterpreterSimulatorLSB new openOn: 'source.image') test"
>> with same result.
>> 
>> If I use the example at the bottom of StackInterpreterSimulator class comment
>> I get "Error: incomaptible image format"
>> 
>> Also btw, the class comment of SimulatorMorph references
>> Simulator>>openAsMorph which doesn't exist. Should this be
>> StackInterpreterSimulator?
>> 
>> I'm running on Linux-x86 platform.
>> 
>> cheers -ben
> 
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