A few CPU hardware bugs

Catherine (Whitequark)&rsquo;s recent observations on poorly -engineered firmware reminded me of a few mistakes I&rsquo;ve seen in vendors&rsquo; CPUs; some unimportant and others surprisingly bad. Since I&rsquo;ve never seen these widely discussed, here&rsquo;s some discussion and links to supporting evidence to make them more widely known, since I think they&rsquo;re interesting. Intel&rsquo;s…