[Vm-dev] Return a value from the image to the VM

[Rob Rothwell]

Oh...I just did:

Interpreter>>primitiveSetOSErrorCode
| value |
self export: true.
value := self stackIntegerValue: 0.
successFlag ifTrue:[
osErrorCode  := value.
self pop: argumentCount.
].

where

osErrorCode is an instvar in Interpreter...

(I found the variable declarations in interp.c,
including gcBiasToGrowGCLimit like you pointed out, but I don't see how it
ended up there!)

Rob

On Wed, Nov 25, 2009 at 11:08 PM, John M McIntosh <
johnmci at smalltalkconsulting.com> wrote:

> How about pasting your smalltalk code for primitiveSetOSErrorCode
>
> On 2009-11-25, at 7:06 PM, Rob Rothwell wrote:
>
> > I miraculously managed to somehow load VMMaker in Pharo on Windows XP.
> >
> > Furthermore, I managed to create a new Primitive:
>  Interpreter>>primitiveSetOSErrorCode.
> >
> > I was even able to use that primitive without the VM crashing!
> >
> > But I can't seem to find the declaration of my instance variable
> osErrorCode outside the scope of the primitive so I can use it in ioExit...
> >
> > Any tips?  Is there something special you have to do to create the
> instance variables?
> >
> > Thanks again for pointing me in the right direction...
> >
> > Rob
> --
> ===========================================================================
> John M. McIntosh <johnmci at smalltalkconsulting.com>   Twitter:
>  squeaker68882
> Corporate Smalltalk Consulting Ltd.  http://www.smalltalkconsulting.com
> ===========================================================================
>
>
>
>
>
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