Bit Manipulation Instruction Set

General Usage
9

I’ve used this:

function has_bmi2()
    CPUInfo = zeros(Int32, 4)
    ccall(:jl_cpuidex, Cvoid, (Ptr{Cint}, Cint, Cint), CPUInfo, 7, 0)
    CPUInfo[2] & 0x100 != 0
end

Cf. this post. There’s also CpuId.jl.

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