• DocumentCode
    1828275
  • Title

    Efficient implementation of rounding units

  • Author

    Burgess, Neil ; Knowles, Simon

  • Author_Institution
    Div. of Electron., Cardiff Univ., UK
  • Volume
    2
  • fYear
    1999
  • fDate
    24-27 Oct. 1999
  • Firstpage
    1489
  • Abstract
    This paper shows how IEEE 754 floating-point standard compliant rounding may be merged with carry-propagate addition in high-performance FPU designs. The paper considers addition/subtraction, multiplication and divide/square root operations and demonstrates that in every case one parallel prefix adder with a small amount of additional logic is sufficient to cover all rounding modes.
  • Keywords
    adders; floating point arithmetic; IEEE 754 floating-point standard compliant rounding; addition/subtraction; carry-propagate addition; divide/square root operations; high-performance FPU design; multiplication; parallel prefix adder; rounding units implementation; Added delay; Adders; Arithmetic; Circuits; Electronic switching systems; Logic; Multiplexing; Propagation delay; Turning;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Signals, Systems, and Computers, 1999. Conference Record of the Thirty-Third Asilomar Conference on
  • Conference_Location
    Pacific Grove, CA, USA
  • ISSN
    1058-6393
  • Print_ISBN
    0-7803-5700-0
  • Type

    conf

  • DOI
    10.1109/ACSSC.1999.831998
  • Filename
    831998