Project that uses the NIOS processor with NIOSDuino libraries. It is written with the VHDPlus IDE

ibex processor for max10 fpga

MIPSfpga+ allows loading programs via UART and has a switchable clock

Simple SoC in VHDL with full toolchain and custom board.

Reference designs and firmware for open-source RISC-V core implementation on MX10 and SpiderSoM

DSP WishBone Compatible Cores

Amber ARM-compatible core

The AVR softcore from opencores.org with a makefile and some useable demo code

SoC design for Milkymist One - LM32, DDR SDRAM, 2D TMU, PFPU

The original high performance and small footprint system-on-chip based on Migen™

The core files for Mega/Xmega designs.

A 32-bit MIPS / RISC-V core & SoC, 1.55 DMIPS/MHz, 2.96 CM/Mhz

Python module containing verilog files for picorv32 cpu (for use with LiteX).

PicoRV32 - A Size-Optimized RISC-V CPU

Ibex is a small 32 bit RISC-V CPU core, previously known as zero-riscy.

LatticeMico32 soft processor

Build your hardware, easily!

An Arduino hardware package for ATmega4809, ATmega4808, ATmega3209, ATmega3208, ATmega1609, ATmega1608, ATmega809 and ATmega808

A highly-configurable and compact variant of the ZPU processor core

tinyODIN digital spiking neural network (SNN) processor - HDL source code and documentation.

Experimental DSP cores in Amaranth HDL