"Due to SPARC International, SPARC is fully open, non-proprietary and royalty-free."
https://en.wikipedia.org/wiki/SPARC
So why are fabs not making open source SPARC processors instead of RISC-V?
https://en.wikipedia.org/wiki/SPARC
So why are fabs not making open source SPARC processors instead of RISC-V?
Their LEON processors are SPARC, and their NOEL processors are RISC-V.