synthesisable floating point

Discussion in 'VHDL' started by Bruce Warkentin, Dec 19, 2003.

  1. Hi

    I'm looking for VHDL floating point (IEEE-754) code to do 32-bit adds and
    multiplies. I've found a couple out there but have no idea as to their
    reliability/performance. Does anyone have any experience with
    this? Any sources to recommend?

    Thanks much

    Bruce

    --
     
    Bruce Warkentin, Dec 19, 2003
    #1
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  2. Bruce Warkentin wrote:

    > I'm looking for VHDL floating point (IEEE-754) code to do 32-bit adds and
    > multiplies. I've found a couple out there but have no idea as to their
    > reliability/performance. Does anyone have any experience with
    > this? Any sources to recommend?


    Consider doing this in software.
    A pentium uP can do a IEEE-754
    multiply in 3 or 4 clock ticks.

    -- Mike Treseler
     
    Mike Treseler, Dec 19, 2003
    #2
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  3. Bruce Warkentin

    Bryce Guest

    > > I'm looking for VHDL floating point (IEEE-754) code to do 32-bit adds and
    > > multiplies. I've found a couple out there but have no idea as to their
    > > reliability/performance. Does anyone have any experience with
    > > this? Any sources to recommend?


    Check out http://www.annapmicro.com/ . They definitely have a
    floating point VHDL library, but you may have to ask for it--I don't
    see the API on their web site.
     
    Bryce, Dec 23, 2003
    #3
  4. Bruce Warkentin

    Jim Lewis Guest

    There is an IEEE effort going on under 1076.3
    to create floating point packages.

    For details see: http://www.eda.org/fphdl/

    Cheers,
    Jim
    --
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Jim Lewis
    Director of Training mailto:
    SynthWorks Design Inc. http://www.SynthWorks.com
    1-503-590-4787

    Expert VHDL Training for Hardware Design and Verification
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


    Bruce Warkentin wrote:

    > Hi
    >
    > I'm looking for VHDL floating point (IEEE-754) code to do 32-bit adds and
    > multiplies. I've found a couple out there but have no idea as to their
    > reliability/performance. Does anyone have any experience with
    > this? Any sources to recommend?
    >
    > Thanks much
    >
    > Bruce
     
    Jim Lewis, Dec 23, 2003
    #4
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