Discussion:
[OpenRISC] Problem with Goldshmidt and Newton-Rawson division
BAndViG
2014-12-30 19:02:02 UTC
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Hello all!
I'm working to improve floating point division performance. To achieve that
I'm trying to implement division of fractional parts with Goldshmidt's or
Newton-Rawson algorithm. Additionally I'm planning to share multiplier for
MUL and DIV floating point instructions. However, I've faced with the
following problem. It is quite difficult (for Goldshmidt's or Newton-Rawson
iterations) to handle cases for which A could be divided by B without
reminder (including A==B as particular case). I haven't found a robust
solution yet. Does any body know how to deal with such cases?
BR
Andrey

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