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

From: Richard Henderson
Subject: Re: [Qemu-devel] [PATCH 0/6] target-alpha: fpu qualifiers, round 2
Date: Wed, 24 Feb 2010 12:24:55 +0100
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20100120 Fedora/3.0.1-1.fc12 Thunderbird/3.0.1

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.


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