“RISC-V (pronounced five) was really the result of a summer academic program to create a processor that could be used to teach processor design in 2010,” O’Connor explained. The obvious choices for teaching had been the x86 and ARM but their instruction sets had become complicated and there were IP and license issues so using them for teaching was not really possible. The the primary motivation was for something simple but that used the best ideas for academia. It took until 2013 to develop and May 2014 was when the specification was first frozen.
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