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Re: [Qemu-devel] [PATCH 1/1] Fix conversion from uint64 to float128
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From: |
Richard Henderson |
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Subject: |
Re: [Qemu-devel] [PATCH 1/1] Fix conversion from uint64 to float128 |
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Date: |
Fri, 11 May 2018 17:52:37 -0700 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 |
On 05/11/2018 12:10 AM, Petr Tesarik wrote:
> The significand is passed to normalizeRoundAndPackFloat128() as high
> first, low second. The current code passes the integer first, so the
> result is incorrectly shifted left by 64 bits.
>
> This bug affects the emulation of s390x instruction CXLGBR (convert
> from logical 64-bit binary-integer operand to extended BFP result).
>
> Cc: address@hidden
> Signed-off-by: Petr Tesarik <address@hidden>
> ---
> fpu/softfloat.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Queued, thanks.
r~