Benchmarking division and libdivide on Apple M1 and Intel AVX512

Re:Benchmarking division and libdivide on Apple M1 and Intel... by floatingatoll on Thursday May 13, 2021 @01:10AM (#27138640)

I'm not sure if this is the right spec, but it repeatedly references a section "Behavior of HCR_EL2.E2H" that I can't find anywhere in the 4700-page PDF "Arm® Architecture Registers, Armv8, for Armv8-A architecture profile"

https://developer.arm.com/documentation/ddi0595/2021-03/AArc...

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Re:Benchmarking division and libdivide on Apple M1 and Intel... by saagarjha on Thursday May 13, 2021 @03:40AM (#27139434)

https://cpu.fyi/d/98dfae

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Re:Benchmarking division and libdivide on Apple M1 and Intel... by mlindner on Thursday May 13, 2021 @07:17AM (#27140832)

This is a link to a pdf document from https://cpu.fyi/ with the link pointing to an entry labeled "ARMv8-A Architecture Reference Manual"

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Re:Benchmarking division and libdivide on Apple M1 and Intel... by saagarjha on Friday May 14, 2021 @04:33AM (#27152078)

Gah, I copied that link wrong. I meant to reference https://cpu.fyi/d/98dfae#G23.11082057, which is that specific section about HCR_EL2.E2H's behavior.

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Re:Benchmarking division and libdivide on Apple M1 and Intel... by floatingatoll on Friday May 14, 2021 @02:35PM (#27158038)

Ah. Thx!

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Re:Benchmarking division and libdivide on Apple M1 and Intel... by floatingatoll on Thursday May 13, 2021 @02:58PM (#27145907)

Thanks, I appreciate the guidance!

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