UltraSPARC-II: the advancement of ultracomputing

UltraSPARC-II extends the family of Sun's 64-bit SPARC V9 microprocessors, building on the UltraSPARC-I pipeline and adding critical enhancements to boost data bandwidth, hide memory latency, and improve floating-point and multimedia performance. New external cache and interface options allow more flexibility in system implementations. This paper describes the motivation and implementation of UltraSPARC-II's enhancements.