3 ms·

http://gafferongames.com/networking-for-game-programmers/floating-point-determinism/ http://gafferongames.com/networking-for-game-programmers/flo... Search for

http://gafferongames.com/networking-for-game-programmers/floating-point-determinism/ http://gafferongames.com/networking-for-game-programmers/flo... Search for _controlfp.. seems some MS API calls could change it.

daemin 15y ago
I've also experienced Windows / DirectX API's use MMX, hence the floating point code I was using (x87 FPU) required a femms instruction before it to change back from MMX state. This just goes to show that if you need a particular state on a processor (CPU, FPU, GFX, etc) you need to set it explicitly before use.