[OpenBIOS] C bindings

[Samuel Rydh]

On Thu, Oct 30, 2003 at 02:50:09PM +0100, Stefan Reinauer wrote:
> > 1. Call C-functions from forth code by pushing the address
> > of the function on the stack. Something like
> > 
> > 	call	( function_addr -- <whatever> )
>  
> see attachment.

Great! I'm trying to make it simple to track the latest openbios
source so I'm avoiding MOL specific modifications whenever
possible...

> > 2. Be able to invoke the forth interpreter from C-code
> > (I think this can be implementable without modifying
> > the kernel code, but I haven't looked into it yet).
>  
> this can be done for example with 
> kernel/openbios.c:void openbios(ucell dictstart, ucell dictend)
> or directly by calling enterforth(). Note that the engine does
> not allow running multiple concurrent instances (yet).

Well, I don't need concurrent instances, just recursive.
enterforth() seems to be able to handle that. What I need though
is runtime translation of C-string forth into tokens. I.e. basically
I need to do the same stuff as interpret does. I will look into it;
I doubt it will be a problem.

/Samuel