UltraSPARC-III: Designing Third-Generation 64-Bit Performance

  • Authors:
  • Tim Horel;Gary Lauterbach

  • Affiliations:
  • -;-

  • Venue:
  • IEEE Micro
  • Year:
  • 1999

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Abstract

Architecting and designing a high performance micro-processor requires many decisions and tradeoffs. This article presents some of the most interesting architecture decisions and design challenges encountered in designing the UltraSPARC-III microprocessor. The UltraSPARC line of microprocessors powers the entire family of Sun Microsystems computer systems, from desktop workstations to large mission critical servers. As the name implies, UltraSPARC-III is the third generation micro-processor of the SPARC Version 9 (V9) architecture (1). The V9 architecture was defined as a 64 bit extension to the original 32 bit SPARC architecture which traces it's roots to the Berkley RISC-I processor.