Does QNX run on MMX processors?
Nothing prevents QNX from running on these processors as their main difference is the addition of some instructions. I believe that Photon will be able to take advantage of these instructions in the future, however there isn’t much the OS itself needs them for. The MMX instructions store temporary variables in the same stack as the floating point instructions, and these registers are already preserved through context switches. This means applications can use MMX instructions now.
