On Mon, May 20, 2013 at 21:28, Alexey Suslikov wrote: > > While I see practical use, someone don't. I call this disagreement. There is > no problem for me if somebody disagree with a plan I have. It's normal. > > Btw, Intel's doc I have found at > http://www.intel.com/content/dam/www/public/us/en/documents/application-notes/processor-identification-cpuid-instruction-note.pdf > > > says "31 Not Used Always returns 0".
In that case, there's no sense testing for it, because it's always 0. If it isn't 0, then it's not an amd64 computer and we don't support it. Trying to identify all the infinite machines we don't support is fruitless, imo, and perhaps not a path we should start down, because then people will expect us to detect why we don't run on *their* not supported computer.