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Re: [f-cpu] Re: optionnal instruction



Yann Guidon a écrit :
> 
> hi,
> 
> nicO wrote:
> > Michael Riepe a écrit :
> > > But I agree with you: there's no need to worry about FP with more than
> > > 64 bits for the FC0.  In fact, the FC0 may not have FP hardware at all
> > > (it's all optional, IIRC).
> >
> > Yep, but we need to defined precisely the group of insrtruction to be
> > defined. I think is to difficult to handel a compiler if almost all
> > instruction could remove or not. I propose an FP group, a mul group
> > (large interger unit : mul+divide?). I think it could have other
> > proposal.
> 
> there is already an FP "group" in the instruction census.
> It is divided into several optional subgroups, where instructions
> are emulated when the corresponding unit is not available.
> 

Yes, we speak about that since a long time but now we something more
precise.

nicO

> > nicO
> WHYGEE
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