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Re: [Qemu-devel] [PATCH v3 2/4] target-tilegx: Add single floating point
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From: |
Richard Henderson |
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Subject: |
Re: [Qemu-devel] [PATCH v3 2/4] target-tilegx: Add single floating point implementation |
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Date: |
Thu, 10 Dec 2015 12:18:36 -0800 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 |
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.
r~