From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Cc: Laurent Desnogues <laurent.desnogues@gmail.com>
Subject: Re: [Qemu-devel] [6106] Implement default-NaN mode.
Date: Fri, 19 Dec 2008 14:25:33 +0000 [thread overview]
Message-ID: <200812191425.37341.paul@codesourcery.com> (raw)
In-Reply-To: <761ea48b0812190611g1e3fe5c0ndf6fa23138cf7caf@mail.gmail.com>
> Doesn't this require an update to the way flags are computed in
> target-arm/cpu.h/cpu_get_tb_cpu_state?
No. These are all runtime checks.
In theory this patch (and the flush-to-zero patch) introduce some runtime
overhead. However it should only effect the exceptional cases of denormals
and NaNs, normal numbers should be unaffected.
> Also I guess the comment at end of vfp_set_fpscr needs some
> update to reflect the handling of DN :-)
Keep reading :-)
Paul
prev parent reply other threads:[~2008-12-19 14:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-19 13:53 [Qemu-devel] [6106] Implement default-NaN mode Paul Brook
2008-12-19 14:11 ` Laurent Desnogues
2008-12-19 14:25 ` Paul Brook [this message]
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