[libre-riscv-dev] [Bug 44] IEEE754 FPU inverse-sqrt

bugzilla-daemon at libre-riscv.org bugzilla-daemon at libre-riscv.org
Mon Apr 29 09:15:19 BST 2019


--- Comment #2 from Jacob Lifshay <programmerjake at gmail.com> ---
(In reply to Jacob Lifshay from comment #1)
> The "wtf" algorithm is not well suited for our needs, since Vulkan requires
> a much more accurate inv-sqrt operation than that algorithm provides
Vulkan requires an accuracy of 2 ULP (Units in the Last Place):
search for inversesqrt

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