UltraSPARC: the next generation superscalar 64-bit SPARC
D. Greenley, Jason Bauman, D.C.-W. Chang, D. Chen, R. Eltejaein, P. Ferolito, Ping Fu, Robert B. Garner, David Greenhill, H. Grewal, K. Holdbrook, B. Kim, Leslie Kohn, Hang Kwan, M.E. Levitt, Guillermo Maturana, D. Mrazek, C. Narasimhaiah, Kevin Normoyle, Nusrat Parveen · 2002
UltraSPARC is the first microprocessor from Sun Microsystems' SPARC Technology Business to implement the new 64-bit SPARC V9 architecture. ULtraSPARC is equipped with unique multimedia capabilities and is capable of 4-way superscalar instruction dispatch, with an emphasis on maximal system efficiency and throughput in the execution of complex, memory-intensive applications. UltraSPARC maintains a strict binary compatibility with the thousands of existing 32-bit applications developed for other SPARC processors. This paper describes the feature set and operation of UItraSPARC.