Reverse-engineering the vintage Intel 8087's tangent algorithm: more than CORDIC
- I hope you're not tired of the 8087, because I have another article about Intel's floating-point chip.1 In 1980, Intel introduced the 8087, making floating-point operations much faster in the IBM PC and other systems.
- In this article, I look at the algorithm behind the chip's tangent instruction.
- One popular approach for trigonometric functions is an algorithm called CORDIC.
Unverified
- I hope you're not tired of the 8087, because I have another article about Intel's floating-point chip.1 In 1980, Intel introduced the 8087, making floating-point operations much faster in the IBM PC and other systems.
- In this article, I look at the algorithm behind the chip's tangent instruction.
- One popular approach for trigonometric functions is an algorithm called CORDIC.
Sources: Righto