Berkeley Out-of-Order RISC-V Processor (Boom) (2020)

https://docs.boom-core.org/en/latest/sections/intro-overview/boom.html

28•Bogdanp•4h ago

Comments

phkahler•2h ago

The latest version seems to be Sonic Boom:

https://github.com/riscv-boom/riscv-boom

But this project seems to have stagnated with one significant commit in the last year.

huyage•2h ago

If I want to do systems research that needs a simple and synthesizable RISC-V design, what are some good options? BOOM seems to be pretty complicated and I don't really need the out-of-order execution.

I also want to be able to run it on a cheap FPGA, something like Artix A7.

daedalus-•1h ago

Try neorv32: https://github.com/stnolting/neorv32

huyage•1h ago

Thanks. Looks good! Are you aware of any 64-bit options?

rwmj•1h ago

Rocket-chip is widely used (https://github.com/chipsalliance/rocket-chip). It can fit on smaller FPGAs.

If you want something very tiny and completely understandable, and don't mind that it's 32 bit, then PicoRV32 (https://github.com/YosysHQ/picorv32).

dmitrygr•45m ago

https://github.com/Wren6991/Hazard3

this one is well tested in real life and works well (it is the RV core in RP2350)

panick21•44m ago

This is what the OpenHW Foundaiton is for. Providing well verified cores for people who just need a core. They are based on the original Pulp Cores from the ETH Zürich and Unviersity of Bolongia. See:

https://openhwfoundation.org/

Or because its part of OpenTitan, Ibex sees a lot of development: https://github.com/lowRISC/ibex

drob518•12m ago

There’s a nice list of open source cores here: https://github.com/suryakantamangaraj/AwesomeRISC-VResources

camel-cdr•1h ago

RISC-V is still at the point where open-source implementations (in rtl) are faster than purchasable proprietary ones (in silicon).

XiangShan is currently the fastest open-source CPU implementation: https://github.com/OpenXiangShan/XiangShan

uarch slides: https://tutorial.xiangshan.cc/hpca25/slides/20250302-HPCA25-...

uarch slides with WIP features: https://tutorial.xiangshan.cc/micro25/slides/Microarchitectu...

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Berkeley Out-of-Order RISC-V Processor (Boom) (2020)

Comments

Beyond RaspberryPi: What are all the other SoC vendors up to summarised

Beyond RaspberryPi: What are all the other SoC vendors up to summarised