cattius/opcodetester
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Tool for automated testing and analysis of Intel x86-64 undocumented instructions in user mode and in the kernel
4 mentions on Hacker News by 3 people: 0 stories, 4 comments · first 2020-03-08 · latest 2020-03-08
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Sorry - the presentation was never recorded. There's more information in the GitHub repo, however: https://github.com/cattius/opcodetester .
comment by cat_easdon · 2020-03-08 · in Undocumented CPU behavior: analyzing undocumented opcodes on Intel x86-64 (2018) [pdf] -
The final thesis behind this slide deck is alongside it in the repo: https://github.com/cattius/opcodetester/
comment by floatingatoll · 2020-03-08 · in Undocumented CPU behavior: analyzing undocumented opcodes on Intel x86-64 (2018) [pdf] -
Associated GitHub repository with more information: https://github.com/cattius/opcodetester I know next to nothing about processors at this level, but I wonder if it would be possible for a skilled engineer to try to find these…
comment by saagarjha · 2020-03-08 · in Undocumented CPU behavior: analyzing undocumented opcodes on Intel x86-64 (2018) [pdf] -
…(due to the lack of any public documentation). There's a more thorough writeup of the project here: https://github.com/cattius/opcodetester/blob/master/thesis.p... .
comment by cat_easdon · 2020-03-08 · in Undocumented CPU behavior: analyzing undocumented opcodes on Intel x86-64 (2018) [pdf]