[blinkingled]

> Note that these instructions are neither documented nor supported by Apple.

What does that mean? Someone pointed out below Apple ships accelerate framework as a higher level supported mechanism to use these instructions?

Intel/AMD have been always good at documenting most of their stuff so perhaps we will see proper supported ones whenever Intel ships it.

[fredoralive]

I think they mean that using the raw instructions is unsupported and undocumented, officially you have to use the libraries as the interface to them.

[cyber_kinetist]

Though in reality nobody is stopping you from using those undocumented instructions. If Apple’s Accelerate framework can use it so do you. (Or is it against the EULA?…) There is a slim chance that the behavior of these instructions might change with a software (if Apple is doing any kind of microcode update), but I kinda doubt it.