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oe1cxw's profile
Claire Xen 🏳️‍⚧️🏳️‍🌈🧙🏻‍♀️ BLM 🏴🚩
Claire Xen 🏳️‍⚧️🏳️‍🌈🧙🏻‍♀️ BLM 🏴🚩
Claire Xen  🏳️‍⚧️ 🏳️‍🌈 🧙🏻‍♀️ BLM  🏴 🚩
@oe1cxw

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Claire Xen  🏳️‍⚧️ 🏳️‍🌈 🧙🏻‍♀️ BLM  🏴 🚩

@oe1cxw

Neurodiverse trans geek girl. Yosys, RISC-V, SAT/SMT.

She/her/hers
clairexen.net
Joined September 2014

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    1. Claire Xen  🏳️‍⚧️ 🏳️‍🌈 🧙🏻‍♀️ BLM  🏴 🚩‏ @oe1cxw 29 Sep 2017
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      SMT solvers write the weirdest programs. Wanna Jump? Simple: Just set the interrupt vector and then execute an illegal instruction.

      8 replies 70 retweets 235 likes
    2. philtor‏ @philtor 29 Sep 2017
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      Replying to @oe1cxw @whitequark

      I understand what an SMT solver is, but in what context do they generate code?

      2 replies 0 retweets 1 like
    3. whitequark‏ @whitequark 29 Sep 2017
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      Replying to @philtor @oe1cxw

      in this case I believe it's formal verification of a CPU core

      1 reply 0 retweets 6 likes
    4. void friend‏ @rep_stosq_void 29 Sep 2017
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      Replying to @whitequark

      do you have insider information? if you don't and this is a guess, please register me as betting on “superoptimizer” please

      2 replies 0 retweets 1 like
    5. Claire Xen  🏳️‍⚧️ 🏳️‍🌈 🧙🏻‍♀️ BLM  🏴 🚩‏ @oe1cxw 29 Sep 2017
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      Replying to @rep_stosq_void @whitequark

      In this case it was riscv-formal. But superoptimizers and program synthesis are generally are good guesses for SMT solvers writing programs.

      1 reply 0 retweets 2 likes
    6. Boltzmann Brain Think Tank‏ @PLT_cheater 29 Sep 2017
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      Replying to @oe1cxw @whitequark

      Can you tell me how SMT is used in this case?

      1 reply 0 retweets 1 like
      Claire Xen  🏳️‍⚧️ 🏳️‍🌈 🧙🏻‍♀️ BLM  🏴 🚩‏ @oe1cxw 29 Sep 2017
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      Replying to @PLT_cheater @whitequark

      Bounded model check. https://github.com/cliffordwolf/riscv-formal … http://symbiyosys.readthedocs.io/ 

      11:55 AM - 29 Sep 2017
      • 3 Likes
      • Vinod Grover Aziem Chawdhary Shafik Yaghmour
      1 reply 0 retweets 3 likes
        1. Boltzmann Brain Think Tank‏ @PLT_cheater 29 Sep 2017
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          Replying to @oe1cxw @whitequark

          TY

          0 replies 0 retweets 2 likes
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