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Wren6991/Hazard3

View on GitHub ↗ ★ 1,130 Verilog

3-stage RV32IMACZb* processor with debug

17 mentions on Hacker News by 14 people: 1 story, 16 comments · first 2024-08-08 · latest 2026-08-15

Mentions per year 17 mentions · busiest year 2024 (8)
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  1. …RP2350 µC [2]. See this article from Luke Wren (Wren6991) back when the RP2350 came out [3]. [1] https://github.com/Wren6991/Hazard3 [2] https://www.raspberrypi.com/products/rp2350/ [3] https://www.raspberrypi.com/news/risc-v-on-raspberry-p…
    comment by aurelian15 · 2026-08-15 · in RISC-V: They Should Have Known Better
  2. Indeed https://github.com/Wren6991/Hazard3
    comment by LeFantome · 2026-01-20 · in RISC-V is coming along quite speedily: Milk-V Titan Mini-ITX 8-core board
  3. It's an open source core design [0], so pretty open. [0] https://github.com/Wren6991/Hazard3
    comment by Zhyl · 2026-01-09 · in Linux Runs on Raspberry Pi RP2350's Hazard3 RISC-V Cores (2024)
  4. …harnesses or general implementation patterns as well as better software support help other cores: https://github.com/Wren6991/Hazard3 For the SoCs I would expect to see an off-the-shelf Risc-V core (certainly no Hazard3 as the main CPU),…
    comment by danhor · 2026-01-09 · in Linux Runs on Raspberry Pi RP2350's Hazard3 RISC-V Cores (2024)
  5. …on the open source RISC V spec. Hazard3 [0] on the other hand, is an open source core design. [0] https://github.com/Wren6991/Hazard3
    comment by Zhyl · 2025-12-10 · in Qualcomm acquires RISC-V focused Ventana Micro Systems
  6. https://github.com/Wren6991/Hazard3 this one is well tested in real life and works well (it is the RV core in RP2350)
    comment by dmitrygr · 2025-10-29 · in Berkeley Out-of-Order RISC-V Processor (Boom) (2020)
  7. …is why I consider them to be competitive despite the losses. The Hazard3 cores are open source: https://github.com/Wren6991/Hazard3 That said, not all RISC-V designs are open source, but some of the open source ones are performance…
    comment by ryao · 2025-05-18 · in ARMv9 Architecture Helps Lift Arm to New Financial Heights
  8. RP2350 (Raspberry Pi Pico 2) has two Hazard3 cores, which is open-source at: https://github.com/Wren6991/Hazard3
    comment by duskwuff · 2025-02-03 · in Ask HN: Are there any open source RISC-V processors that I can buy and use?
  9. …agreement does not solve this, because you may sign it without the legal capability to do so (...)" https://github.com/Wren6991/Hazard3/blob/stable/Contributing... (this is I believe the repo with design for riscv cores running on RPi Pico…
    comment by bialpio · 2025-01-25 · in Wild – A fast linker for Linux
  10. …of the better RISCV designs, in fact, implement a custom instr to do this, eg: BEXTM in Hazard3: https://github.com/Wren6991/Hazard3/blob/stable/doc/hazard3....
    comment by dmitrygr · 2024-08-27 · in Box64 and RISC-V in 2024: What It Takes to Run the Witcher 3 on RISC-V
  11. …in the RP2350, you don't get your own core design taped out as an ASIC and then not show it off :p https://github.com/Wren6991/Hazard3
    comment by jsheard · 2024-08-15 · in RP2350 PicoDVI Preview
  12. ▲ 62
    Hazard3: 3-stage RV32IMACZb* processor with debug
    story by EvgeniyZh · 2024-08-11 · 35 comments
  13. See https://github.com/Wren6991/Hazard3/tree/stable/test for the test harnesses used. I wonder if they did release all they used there.
    comment by my123 · 2024-08-09 · in I got almost all of my wishes granted with RP2350
  14. Hazard3 pointer https://github.com/Wren6991/Hazard3 I think it's cool as a cucumber that we can choose fully open-source RISC-V if we want. My guess is the RV cores are slower clock-per-clock than the M33 cores; that is benchmark scores…
    comment by GeorgeTirebiter · 2024-08-08 · in I got almost all of my wishes granted with RP2350
  15. …Also exciting to see them dip their toe into the open silicon waters with the hazard 3 RISCV core https://github.com/Wren6991/Hazard3 . Of course it they'd used Ibex https://github.com/lowrisc/ibex the RISC-V core we develop and maintain…
    comment by gchadwick · 2024-08-08 · in I got almost all of my wishes granted with RP2350
  16. …Cortex-M33 cores (4.09 CoreMark/MHz) and two open-source RISC-V Hazard3 cores (3.81 CoreMark/MHz): https://github.com/Wren6991/Hazard3
    comment by camel-cdr · 2024-08-08 · in Raspberry Pi Pico 2, our new $5 microcontroller board, on sale now
  17. Hazard3 RTL: https://github.com/Wren6991/Hazard3
    comment by my123 · 2024-08-08 · in I got almost all of my wishes granted with RP2350