Top 3 softcore Open-Source Projects

VexRiscv

21 2,252 7.6 Assembly

A FPGA friendly 32 bit RISC-V CPU implementation

Project mention: Need help to build a RISC-V Processor on Artix-7 FPGA: Final Year Engineering Project Guide | /r/RISCV | 2023-10-23

With LiteX you can synthesize a VexRiscV processor. You can run Linux on it. The toolchain is pretty easy to use, as long as you use Xilinx Vivado to compile to gateware.

darkriscv

3 1,892 6.3 Verilog

opensouce RISC-V cpu core implemented in Verilog from scratch in one night!
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
forth-cpu

2 315 2.6 VHDL

A Forth CPU and System on a Chip, based on the J1, written in VHDL

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).