[libre-riscv-dev] [Bug 74] preliminary exploratory software emulation of FP SQRT

[bugzilla-daemon at libre-riscv.org]

http://bugs.libre-riscv.org/show_bug.cgi?id=74

Jacob Lifshay <programmerjake at gmail.com> changed:

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                 CC|                            |programmerjake at gmail.com

--- Comment #2 from Jacob Lifshay <programmerjake at gmail.com> ---
This code I wrote quite a while ago in C++11/14 might be a useful reference:

Integer sqrt:
https://github.com/programmerjake/instruction-selector/blob/727a0c277d4bc97cd96bf15e6a895244cd309a07/int_types.h#L393-L420

Floating-point sqrt based on integer sqrt (don't think it rounds properly
though):
https://github.com/programmerjake/instruction-selector/blob/727a0c277d4bc97cd96bf15e6a895244cd309a07/float_types.h#L612-L625

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