4 ms·
_m seems to be the prefix for MMX, whereas _mm is the prefix for SSE. I think the instructions which didn’t need to change just got a new intrinsic alias so th
by secure 8y ago
_m seems to be the prefix for MMX, whereas _mm is the prefix for SSE.
I think the instructions which didn’t need to change just got a new intrinsic alias so that each instruction set is self-contained, i.e. when working with SSE, you should only need to look at the SSE docs, not also know the MMX docs already.