[Mono-dev] Count leading zeros (or find first one) in Mono.SIMD

Konrad Kruczyński konrad.kruczynski at gmail.com
Tue Feb 28 16:44:38 UTC 2012

> Are you talking about AVX? AVX is a very tricky matter and I don't
> have an answer for it upfront,
> but a safe guess is that it will take quite some work and API changes.
> This is for using
> the wider 256bits registers. Using AVX with 128bits register is fine.

Yes, I thought about AVX too, but in that case it may be reserved for

> For adding missing instructions, it's just a matter of adding them.
> Pretty simple.
>         b) question above applied to the underlying JIT machinery;
> Same as above.
>          c) is there any documentation about it or should I just
>         rather look at
> the source code?
> Just look at the source code, those are some entry level changes if
> you fancy doing so.

Thanks, I'll report if something emerges.


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