SPARC64 or sparc64 may refer to:
* sparc64, an alternative name used by free software projects for the
SPARC V9 instruction set architecture
*
HAL SPARC64
SPARC64 is a microprocessor developed by HAL Computer Systems and fabricated by Fujitsu. It implements the SPARC V9 instruction set architecture (ISA), the first microprocessor to do so. SPARC64 was HAL's first microprocessor and was the first ...
, a microprocessor designed by HAL Computer Systems
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