Evaluating the performance of Carmack’s fast inverse square root against a regular 1/sqrt(x) calculation and the rsqrt instruction on a modern processor.
Computer Science learning blog
Evaluating the performance of Carmack’s fast inverse square root against a regular 1/sqrt(x) calculation and the rsqrt instruction on a modern processor.
Calling functions written in Assembly from a C program. How to include Assembly code in a C program. Compiling C and Assembly code.