Re: [Squeak-VMdev] Re: InterpreterSimulator

[Ned K. <ne...@sq...>]

On Saturday 03 April 2004 8:37 am, Tim Rowledge wrote:
> In message <200...@sq...>
>
>           Ned Konz <ne...@sq...> wrote:
> > Though this may be in the humor category, here's what I was using most
> > recently. I got it to run somewhat (so it may be a start).
>
> [snip]
>
> > I see the Morphic screen from small.image painted, but it doesn't keep
> > running.
> > I don't get any walkbacks; it just completes normally.
>
> Yup. I saw that too. It was 'fixed' by making the module initialisation
> for B2DPlugin not do the wrong thing; that was causing an error in the
> bowels of the simulator >which was not raising a notifier< !
>
> I'm currently convinced there is something seriously screwed in some
> signal/exception code. Note that the unit test for exceptions fails the
> 'outer' related test.  I also had a problem a while ago that I never
> really got to the bottom of in VMMAker - an error would simply 'go by'
> and make it look like the generation was done. We need to fix this PDQ
> in my view.
>
> I've been working with Dan on this and if you use mylatest VMMaker3-7b2
> and the attached sim patch it should go a bit better. And since my
> current bug seems to be to do with halfWordAt: it looks like Ned might
> have fixed that... ta very much.

OK. Here's a combined change set that will run Morphic in a stock 3.6Full-5424 
image after loading Tim's VMMaker3-7b2.sar package from 
http://sumeru.stanford.edu/tim/pooters/SqFiles/packages/VMMaker/VMMaker3-7b2.sar

I haven't tried it in any later images, nor have I tried to speed it up 
(though the byte and half-word accessors I did are much faster; there's a big 
difference in:

	bitShift: 3
and
	* 8

I also sped up the GC a bit (using bitOr: to set header type bits rather than 
the slow LargeInteger addition).

-- 
Ned Konz
http://bike-nomad.com/squeak/