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Reverse-engineering the Intel 8087's tangent algorithm: more than CORDIC

126 points · 11 comments · pwg

  1. kens · · focus · HN ↗
    Author here for your 8087 questions...
    1. WalterBright · · focus · HN ↗
      Thank you! Amazing work! I've always had a soft spot for the 8087.

      Maybe implement the algorithm in C? Thank would be fun!

    2. jacquesm · · focus · HN ↗
      Weitek next?
      1. kens · · focus · HN ↗
        The 8087 is probably enough floating point for a while :-)
        1. jacquesm · · focus · HN ↗
          That's an interesting chip though, but probably also much more challenging.
    3. [deleted] · · focus · HN ↗

      [deleted]

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