SPARC

SPARC (Scalable Processor ARChitecture) is a robust, open-standard Reduced Instruction Set Computer (RISC) instruction set architecture (ISA), originally developed by Sun Microsystems.

SPARC (Scalable Processor ARChitecture) is a high-performance RISC ISA, first developed by Sun Microsystems in 1986 and released in 1987. It quickly became one of the most successful early commercial RISC systems (cite: 1.3). The architecture is known for its innovative register windows and has maintained continuous application binary compatibility from its initial V7 implementation through the 64-bit Version 9 and the Oracle SPARC Architecture 2017 (OSA2017) specification (cite: 1.3). SPARC International, Inc., an independent non-profit, oversees and guides the evolution of this open and royalty-free technology (cite: 1.1, 1.5).

https://www.sparc.org/