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    Overview :: News :: Downloads :: Tracker    

    CF Floating Point Multiplier: Overview

    Details

    Name: cf_fp_mul
    Created: 13-Mar-2003 18:42:30
    Updated: 08-May-2008 08:30:14
    CVS: no files in cvs

    Other project properties

    Category :: Arithmetic core
    Development status :: Production/Stable

    Project maintainers

  • Tom Hawkins
  • Statistics

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  • Description

    Cores are generated from Confluence; a modern logic design language. Confluence is a simple, yet highly expressive language that compiles into Verilog, VHDL, and C. See Confluent for more info.

    Features

    The floating point representation follows the IEEE-754 bit format:

    {SignBit, Exponent, Mantissa}

    Each file is stand-alone and represents a specific configuration.
    The 3 configuration parameters are:

    • Combinatorial or Pipelined ('c' or 'p')
    • Exponent Precision
    • Mantissa Precision
    Note the total width = 1 + Exponent Precision + Mantissa Precision.
    For pipeline configurations, pipeline latency is 4 + Mantissa Precision.

    The configuration parameters are coded in the file name.
    For example, cf_fp_mul_p_11_52 has the following configuration:

    • Pipelined
    • 11-Bit Exponent
    • 52-Bit Mantissa
    Current configurations:
    • cf_fp_mul_c_3_4
    • cf_fp_mul_p_3_4
    • cf_fp_mul_c_5_10
    • cf_fp_mul_p_5_10
    • cf_fp_mul_c_8_23 (IEEE-754 Single)
    • cf_fp_mul_p_8_23 (IEEE-754 Single)
    • cf_fp_mul_c_11_52 (IEEE-754 Double)
    • cf_fp_mul_p_11_52 (IEEE-754 Double)


     

     
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