Re: [Qemu-devel] [PATCH 0/6] target-alpha: fpu qualifiers, round 2

[Richard Henderson]

On 02/23/2010 02:58 PM, Aurelien Jarno wrote:
> > I have totally rewritten the patch to be more along the line
> > that Laurent was suggesting, in that the rounding mode and other
> > qualifiers are totally parsed within the translator.  I no longer
> > pass the FN11 field to the helper functions.
>
> What's the benefit of doing that? I don't say it's wrong, I just want
> to understand. Otherwise the patch looks good, so it can probably be
> applied without any change.

I seem to recall Laurent opining that doing the interpretation
of the opcode in two different places was less than clean, and
in the end I agree with him.

FWIW, this configuration would also be compatible with a
future TCG enhancement to generate fp code, whereas the first
config would not.


r~