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From: Richard Henderson <rth@twiddle.net>
To: Aurelien Jarno <aurelien@aurel32.net>
Cc: laurent.desnogues@gmail.com, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 0/6] target-alpha: fpu qualifiers, round 2
Date: Wed, 24 Feb 2010 12:24:55 +0100	[thread overview]
Message-ID: <4B850C87.8060101@twiddle.net> (raw)
In-Reply-To: <20100223225825.GS10348@hall.aurel32.net>

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~

  reply	other threads:[~2010-02-24 11:25 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20091228201020.GD5695@hall.aurel32.net>
2009-12-18 22:09 ` [Qemu-devel] [patch] target-alpha: squashed fpu qualifiers patch Richard Henderson
2010-01-04 22:46   ` [Qemu-devel] [PATCH 0/6] target-alpha: fpu qualifiers, round 2 Richard Henderson
2009-12-31 19:54     ` [Qemu-devel] [PATCH 1/6] target-alpha: Fix gdb access to fpcr and unique Richard Henderson
2009-12-31 20:41     ` [Qemu-devel] [PATCH 2/6] target-alpha: Split up FPCR value into separate fields Richard Henderson
2010-01-04 19:19     ` [Qemu-devel] [PATCH 3/6] target-alpha: Reduce internal processor registers for user-mode Richard Henderson
2010-01-06  9:55       ` Tristan Gingold
2010-01-06 16:29         ` Richard Henderson
2010-01-06 17:04           ` Andreas Färber
2010-01-07 11:54             ` Tristan Gingold
2010-01-07 20:13               ` Andreas Färber
2010-01-04 19:24     ` [Qemu-devel] [PATCH 4/6] target-alpha: Clean up arithmetic traps Richard Henderson
2010-01-04 19:25     ` [Qemu-devel] [PATCH 5/6] target-alpha: Mark helper_excp as NORETURN Richard Henderson
2010-01-04 22:27     ` [Qemu-devel] [PATCH 6/6] target-alpha: Implement IEEE FP qualifiers Richard Henderson
2010-01-26 16:35     ` [Qemu-devel] [PATCH 0/6] target-alpha: fpu qualifiers, round 2 Richard Henderson
2010-02-09 18:47     ` Richard Henderson
2010-02-23 22:58     ` Aurelien Jarno
2010-02-24 11:24       ` Richard Henderson [this message]
2010-02-28 16:49         ` Aurelien Jarno

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