"While open source licensing of soft microprocessors allows designers easily modify FPGAs and greater visibility into the CPU architecture, it is important to understand the implications of associated licensing models.
"FPGA designers are embedding soft microprocessors in an increasing number of designs. As a result, FPGA vendors and third-party Intellectual Property (IP) vendors have developed a number of soft microprocessors that are licensed in a variety of ways including the most recent model, Open Source..."