Faulty CPUID Bits written in osdev : https://wiki.osdev.org/SSE
Straight forward from the CPUID page in wikipedia, https://en.wikipedia.org/wiki/CPUID#EAX ... d_Features
- EDX[26] is the IBRS_IBPB / spec_ctrl features, not AVX2
- AVX2 is detected through CPUID [EAX=7, ECX=0] EBX Bit 5
- AVX512 Separated features are detected also through CPUIDEX 7, it is easier to detect AVX512 just by checking the AVX512F Bit (AVX-512 Foundation) in EBX[16] (SubFunction 0).
Devc1,
Inaccurate CPUID bits in : https://wiki.osdev.org/SSE
Re: Inaccurate CPUID bits in : https://wiki.osdev.org/SSE
That's the problem ! everyone tells me to create/edit pages but I have no permissions.
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Re: Inaccurate CPUID bits in : https://wiki.osdev.org/SSE
So I joined but it still gives me the message :
You do not have permission to edit this page, for the following reason:
The action you have requested is limited to users in the group: Users.
You can view and copy the source of this page:
You do not have permission to edit this page, for the following reason:
The action you have requested is limited to users in the group: Users.
You can view and copy the source of this page:
Re: Inaccurate CPUID bits in : https://wiki.osdev.org/SSE
Done, now I have editing rights ! Thanks