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Re: [Qemu-devel] [PATCH] target-arm: fix for exponent comparison in recp

From: Peter Maydell
Subject: Re: [Qemu-devel] [PATCH] target-arm: fix for exponent comparison in recpe_f64
Date: Thu, 5 Feb 2015 13:30:22 +0000

On 5 February 2015 at 11:27,  <address@hidden> wrote:
> From: Ildar Isaev <address@hidden>
> f64 exponent in HELPER(recpe_f64) should be compared to 2045 rather than 1023
> (FPRecipEstimate in ARMV8 spec)
> Signed-off-by: Ildar Isaev <address@hidden>
> ---
>  target-arm/helper.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Thanks, applied to target-arm.next. I tweaked the commit message
a little to add

"This fixes incorrect underflow handling when flushing denormals
to zero in the FRECPE instructions operating on 64-bit values."

just to clarify the scope of the bug a little.

-- PMM

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