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Re: Fwd: [RFC PATCH v2] target/ppc: Enable hardfloat for PPC
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From: |
Richard Henderson |
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Subject: |
Re: Fwd: [RFC PATCH v2] target/ppc: Enable hardfloat for PPC |
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Date: |
Thu, 5 Mar 2020 11:25:30 -0800 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 |
On 3/4/20 10:43 AM, G 3 wrote:
> I am all intrigued by these vector instructions. Apple was really big on using
> them back in the day so programs like Quicktime and iTunes definitely use
> them.
> I'm not sure if the PowerPC's altivec vector instructions map to host vector
> instructions already, but if they don't, mapping them would give us a huge
> speedup in certain places. Would anyone know if this was already done in QEMU?
They are, provided that your x86 host supports AVX. Which should be everything
manufactured after about 2011.
r~