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Re: [Qemu-devel] [PATCH v3 2/4] target-tilegx: Add single floating point
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From: |
Chen Gang |
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Subject: |
Re: [Qemu-devel] [PATCH v3 2/4] target-tilegx: Add single floating point implementation |
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Date: |
Fri, 11 Dec 2015 06:15:39 +0800 |
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User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 |
On 12/11/15 04:18, Richard Henderson wrote:
> On 12/10/2015 09:15 AM, Richard Henderson wrote:
>> d = (uint64_t)sign << 63;
>> d = deposit64(d, 53, 11, exp);
>> d = deposit64(d, 21, 32, man);
>> return float64_to_float32(d, fp_status);
>
> Hmm. Actually, this incorrectly adds the implicit bit. We'd actually need to
> steal portions of softfloat.c to do this properly. Which still isn't that
> difficult.
>
Yes, thanks.
--
Chen Gang (陈刚)
Open, share, and attitude like air, water, and life which God blessed