chipsalliance/rocket-chip

Open-source high-performance RISC-V processor

A FPGA friendly 32 bit RISC-V CPU implementation

Build your hardware, easily!

PicoRV32 - A Size-Optimized RISC-V CPU

Chisel: A Modern Hardware Design Language

Yosys Open SYnthesis Suite

A graphical processor simulator and assembly editor for the RISC-V ISA

OpenTitan: Open source silicon root of trust

Learning FPGA, yosys, nextpnr, and RISC-V