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Intel Discloses New CPU Instructions, Enhanced Hardware Feedback Interface (EHFI)

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  • gilboa
    replied
    Originally posted by danmcgrew View Post
    You don't 'misunderstand' anything. Even the x86 experts here don't understand enough in order to answer as simple a question as that posed / posted in @#7.
    Childish trolling aside, the full Intel developer manual can be downloaded from this URL:
    https://www.intel.com/content/dam/ww...ual-325383.pdf

    If you prefer the AMD version, feel free to download it here:
    https://www.amd.com/system/files/TechDocs/24592.pdf

    Free free to count the instructions yourself (as if the number of instructions means anything in this day and age...).

    BTW, as someone that still write ASM code from time, I use both quite extensively. (I prefer the Intel variant) and both, are literally light years ahead of the horrible documentation available on ARM.

    Oh, and by the way--if Intel has not seen fit to implement an interrupt system--starting with the 8080, and even before that--as sophisticated as that found in the Z80 and MC6800, you certainly don't think they're going to do it now, do you? The sheer burden of dealing with the complexities of having to save the environment---and of restoring it---of a "modern" x86 (everything is relative; some might say that "modern x86" is an oxymoron) makes that idea laughable, at the very least.
    Granted, English is not my first language. But, umm, anyone care to translate the above?

    - Gilboa

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  • jayN
    replied
    is that AMX or avx512 VNNI? Anyway, saturation is nice to have...

    VPDPBUSDS

    https://en.wikichip.org/wiki/x86/avx512_vnni

    Leave a comment:


  • danmcgrew
    replied
    Originally posted by Lycanthropist View Post
    User interrupts? Does that mean we get interrupts in user space like in micro controllers? Or do I misunderstand that completely?
    You don't 'misunderstand' anything. Even the x86 experts here don't understand enough in order to answer as simple a question as that posed / posted in @#7.

    ***********************

    Oh, and by the way--if Intel has not seen fit to implement an interrupt system--starting with the 8080, and even before that--as sophisticated as that found in the Z80 and MC6800, you certainly don't think they're going to do it now, do you? The sheer burden of dealing with the complexities of having to save the environment---and of restoring it---of a "modern" x86 (everything is relative; some might say that "modern x86" is an oxymoron) makes that idea laughable, at the very least.
    Last edited by danmcgrew; 04 October 2020, 09:13 PM.

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  • Alex/AT
    replied
    Adding some obscure stuff when even the current command set is in dire need of reducing complexity... well, wonder if it is a good idea.

    Leave a comment:


  • Lycanthropist
    replied
    User interrupts? Does that mean we get interrupts in user space like in micro controllers? Or do I misunderstand that completely?

    Leave a comment:


  • rastersoft
    replied
    Some time ago I read that AMD was suing Intel to ensure exclusive access to one of the three free "big blocks" of instructions that remains in the x86 architecture, in order to be able to add new instructions without risking clashing with the ones added by Intel. Does anybody know if they achieved it?

    Leave a comment:


  • bug77
    replied
    Originally posted by danmcgrew View Post
    I'd like a definite answer, from someone who really knows---

    How many instructions are now in the x86 instruction set?
    All of them.

    Leave a comment:


  • tildearrow
    replied
    Originally posted by skeevy420 View Post

    Phoronix Forums -- Now Sponsored by Intel
    .....

    Originally posted by Phoronix
    However, we are not compensated to provide favorable opinions on products nor do we accept paid endorsements.

    Leave a comment:


  • danmcgrew
    replied
    I'd like a definite answer, from someone who really knows---

    How many instructions are now in the x86 instruction set?

    Leave a comment:


  • jrch2k8
    replied
    Mmmm, EHFI sounds like exploiter's candy.

    Let's hope Intel learned something this past couple of years

    Leave a comment:

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