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Re: [Qemu-devel] [PATCH] target-arm: fix for exponent comparison in recp
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From: |
Peter Maydell |
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Subject: |
Re: [Qemu-devel] [PATCH] target-arm: fix for exponent comparison in recpe_f64 |
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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