Register cache

[Eli Zaretskii]

On Sun, 11 Feb 2001, Nick Duffek wrote:

> >Therefore I propose to make this "official" and change
> >the comment on target_fetch_registers() to:
> >
> >   /* Fetch at least register REGNO, or all regs if REGNO == -1.  */
> 
> I think that's a great idea.
> 
> >Another question is whether we should make this behaviour (I mean
> >having target_fetch_registers() supply all registers it managed to get
> >in one go) recommended practice.
> 
> I don't agree with that.  There are times when GDB just needs one
> register, and it may be much more efficient on some targets to fetch one
> register than to fetch all of them.

So you are telling, in effect, that it's okay to have
i387_supply_fsave get all the FP registers, and x86 targets which
don't like that should provide ther own code instead of using 
i387_supply_fsave?