contributed by < dotandlog >
Source code.
:::danger
Choose one problem (A, B, or C) from Quiz1, translate it from C code to a complete RISC-V assembly program, and include the relevant test data.
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In computer graphics, calculating lighting and shading often involves normalizing vectors, which requires computing the reciprocal square root of a number $\frac{1}{\sqrt{x}}$.
This operation is computationally expensive if done directly. The Fast Inverse Square Root algorithm, made famous by its use in Quake III Arena, provides a fast approximation.