<p align="center"> <img width="256" heigth="256" src="https://haruspex.can.ac/static/logo.svg"> <h1 align="center" style="border-bottom: none">Haruspex</h1> <h4 align="center">/həˈrʌspeks/</h4> <h6 align="center">A religious official in ancient Rome who predicted the future or interpreted the meaning of events by examining the insides of birds or animals that had been sacrificed.</h6> <p align="center"> Exploration of x86-64 ISA using speculative execution. </p> <h1></h1> </p>

Haruspex is a project attempting to explore and audit the x86-64 instruction set by (ab)using speculative execution and certain low-level performance counters Intel CPUs provide mainly for the identification of undocumented opcodes and deducing the pipeline properties of each instruction. You can find the article explaining the methodology here.

• /analysis contains the Node.js server responsible for reducing the dataset and serving it as an interactive table, which you can find live at haruspex.can.ac .
• /kernel contains the code responsible for producing this data, note that it is essentially "pseudo-code" due to some of the dependencies and parts of the toolchain I used to build it I cannot share, but should be pretty easy to translate it to work in your OS.
• /raw-data contains the raw data from certain processors.

Thanks to

• @JustasMasiulis for helping with the web components.
• @H4vC for the name.

License

Haruspex is licensed under the GNU General Public License v3.