This is one of the small things that processor vendors can do to make the life of compiler developers (and anyone writing low level code) much easier. "Where's that ISA document again?" becomes "Let's use google to find the instruction." ... and there was much rejoicing.https://twitter.com/alastair_d_reid/status/1014604328466878464 …
Also blackhat-SEO-attacking their own docs with tens of different variants for obscure and irrelevant-to-most-readers cpu models rather than a single clean unified set of pages.