IBM Journal of Research and Development
IBM Skip to main content
  Home     Products & services     Support & downloads     My account  

  Select a country  
Journals Home  
  Systems Journal  
Journal of Research
and Development
    Current Issue  
    Recent Issues  
    Papers in Progress  
    Search/Index  
    Orders  
    Description  
    Patents  
    Recent publications  
    Author's Guide  
  Staff  
  Contact Us  
  Related links:  
     IBM Research  

IBM Journal of Research and Development  
Volume 34, Number 1, Page 23 (1990)
IBM RISC System/6000 processor
  Full article: arrowPDF   arrowCopyright info





   

IBM RISC System/6000 processor architecture

by R. R. Oehler, R. D. Groves
This paper describes the hardware architecture of the IBM RISC System/6000® processor, which combines basic RISC principles with a partitioning of registers by function into multiple ALUs. This allows a high degree of parallelism in execution and permits a compiler to generate highly optimized code to manage the interaction among parallel functions. Floating-point arithmetic is integrated into the architecture, and floating-point performance is comparable to that of many vector processors.
Related Subjects: Computer-aided design; Reduced-instruction-set computers (RISC); Computer architecture