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XUANTIE-RV/openc910

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OpenXuantie - OpenC910 Core

27 mentions on Hacker News by 16 people: 2 stories, 25 comments · first 2021-10-19 · latest 2025-07-08

Mentions per year 27 mentions · busiest year 2023 (12)
20082026
  1. …chips from several vendors use Brother Honey Badger's Apache-licensed XuanTie C910: https://github.com/XUANTIE-RV/openc910 But see https://news.ycombinator.com/item?id=44503847
    comment by kragen · 2025-07-08 · in GlobalFoundries to Acquire MIPS
  2. https://github.com/XUANTIE-RV/openc910/issues/9 Vperl, apparently
  3. …use case they're aiming at. Note from the git history is that this is basically a 2021 design. https://github.com/XUANTIE-RV/openc910/commits/main/
  4. Apache-2 open source: https://github.com/XUANTIE-RV/openc910
  5. …they follow my suggestion of shipping the processor source code with the default Linux install. [1] https://github.com/T-head-Semi/openc910 [2] https://github.com/XUANTIE-RV/openc906 [3] https://github.com/camel-cdr/rvv-d1?tab=readme-ov-fil…
  6. …buy use the THead C910 core, which is: 1) Chinese 2) actually Open Source (except the vector unit): https://github.com/T-head-Semi/openc910 The fastest off the shelf RISC-V machine currently is the Milk-V Pioneer using the SG2042 SoC which…
  7. …have been proprietary designs thus far. There is the OpenC910 [1] and OpenXiangShan [2]. [1] https://github.com/T-head-Semi/openc910 [2] https://github.com/OpenXiangShan/XiangShan
  8. Seems really fake tbh: https://github.com/T-head-Semi/openc910
  9. Note that the C910 CPU cores used in this chip are in fact open source: https://github.com/T-head-Semi/openc910 (C920 is just C910 plus RVV draft 0.7.1 vector unit which pretty much no software uses anyway, sadly)
  10. …C910 was designed in China in 2018/19 and open-sourced in October 2021, on Microsoft's github site. https://github.com/T-head-Semi/openc910 The SG2042 is the most powerful RISC-V SoC available today. In which direction is the technology…
  11. …essentially free. Today, the c910 is an Apache 2, hardware proven out of order core on GitHub here https://github.com/T-head-Semi/openc910 a little slower than an RPi3's core.
  12. Here you go: https://github.com/T-head-Semi/openc910 (This isn't doesn't include the draft vector extension present in the C910)
  13. …but will the CPU as the physical object itself be the same? And the microcode running inside? 0, https://github.com/T-head-Semi/openc910
  14. …performance RISC-V SoCs (TH1520, SG2042) and boards you can buy right now, it is also open source ( https://github.com/T-head-Semi/openc910 ) with a permissive license so anyone can audit it, or take the design as a starting point.…
  15. Here is the source code* for the CPU: https://github.com/T-head-Semi/openc910 * AFAIK they didn't opensource the pre ratification vector extension implementation they ship with the taped out chip.
  16. …RTL for the roughly Arm A72-equivalent cores used in this were open-sourced several years ago. https://github.com/T-head-Semi/openc910 The same cores are used in the 64 core SG2042 workstation/server SoC.
    comment by brucehoult · 2023-07-13 · in BeagleV-Ahead RISC-V board
  17. …IP to run them. [1]: https://git.beagleboard.org/beaglev-ahead/beaglev-ahead/-/bl... [2]: https://github.com/T-head-Semi/openc910/blob/main/C910_RTL_F...
    comment by LeifCarrotson · 2023-07-12 · in BeagleV-Ahead RISC-V board
  18. …1. https://www.sifive.com/cores/u74 2. https://xrvm.com/cpu-details?id=4056743610438262784 3. https://github.com/T-head-Semi/openc910
    comment by snvzz · 2023-05-28 · in ARM’s Cortex A53: Tiny but Important
  19. …It's also been open source (without the vector unit) for a similar amount of time: https://github.com/T-head-Semi/openc910 This board certainly marks a big improvement in price/performance for C910 boards, and a significant performance…
  20. …can find any stolen code here[0] or here[1]. Cheers. 0. https://github.com/T-head-Semi/openc906 1. https://github.com/T-head-Semi/openc910
  21. …The core is even open[0] so I can't think of a reason they wouldn't try to upstream it. [0] https://github.com/T-head-Semi/openc910
    comment by Vt71fcAqt7 · 2022-12-26 · in Lichee Pi 4A
  22. …they going to do - lose out on their largest market? The cloud companies are in control here. [0] https://github.com/T-head-Semi/openc910 [1] https://github.com/OpenXiangShan/XiangShan [2] https://github.com/riscv-boom
  23. …of cores are free as well. Here's the HDL for AliBaba's cores they've been developing this against: https://github.com/T-head-Semi/openc910 There are also non-free RISC-V cores, but they essentially have to continuously make the argument…
  24. …AFAIK, this work is mainly against their XuanTie C910 cores that have the source published here: https://github.com/T-head-Semi/openc910
  25. …unreadable. Seems like it was produced by some kind of code generator that they didn't open-source? https://github.com/T-head-Semi/openc910/blob/d4a3b947ec9bb8f...