pi64 cpu less neon support.

bamarni / pi64

A 64-bit OS for the Raspberry Pi 3

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pi64 cpu less neon support. #31

Closed YanShenChun closed 7 years ago

YanShenChun commented 7 years ago

If I install the official 32bit OS, then the cpu feature output from 'cat /proc/cpuinfo' as below: Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32

And If I install pi64, the output seem much less than above Features : fp asimd evtstrm crc32 cpuid

I just need the neon support. How to achieve this?

Any help is highly appreciated.

bamarni commented 7 years ago

I'm not much familiar with this, isn't asimd the equivalent for arm64?

https://en.wikipedia.org/wiki/ARM_architecture#Advanced_SIMD_.28NEON.29

YanShenChun commented 7 years ago

@bamarni
Hi, bamarni Yes, you are right. I had gotten this knowledge few days ago. Sorry to forget to share this point here.