Is x86 ready to ACE it?

(chipsandcheese.com)

41 points | by mfiguiere 3 hours ago

2 comments

  • aidenn0 44 minutes ago
    With 8kb of registers for just this one feature, what does a modern process-control-block look like?
    • monocasa 35 minutes ago
      On x86, basically whatever XSAVE writes out.

      FWIW, I wouldn't be surprised if you only have a couple threads using this at a time max since it looks an awful lot Apple's AMX/SME stuff. Those Apple execution units only have single engines shared about per cluster.

      XSAVE lets you not bother saving register state that user space hasn't changed at the granularity of each large feature.

  • supriyo-biswas 1 hour ago
    Great article. What does the (organizational) process look like to convert one of these specs to a processor product, does it go through a committee like the C++ standards?