Hacker Hour: Cute Bithax and Fast Inverse Square Root
How hard is it to compute something like 1/sqrt(x)? In 1999, it certainly was expensive. This talk dives into the origin, application and beautiful logic behind the Fast Inverse Square Root, a bithack used in Quake 3. No prior math/digital logic background is required, just a willingness to learn :)
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Slides: https://bit.ly/2UUsCix
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