In March 2006, the complete design of Sun Microsystems’ UltraSPARC T1 microprocessor was released in open source form, named OpenSPARC T1. In early 2008, its successor, OpenSPARC T2, was also released in open source form. These were the first (and still only) 64-bit microprocessors ever open sourced. They were also the first (and still only) […]