Hi, to...@tuxteam.de wrote: > Does any of the processors in the M68K family support VM?
They did since the early 1980s when i wondered what the advantage of an 68010 would be over an 68000 (with HP BASIC: none). http://gunkies.org/wiki/MC68010 After all, early Sun, HP and Apollo Unix workstations were based on 680X0. > Does any of the M68K family members prefetch speculatively? The last one (68060) had Branch Prediction, which implies some kind of speculative execution and data prefetching. https://en.wikipedia.org/wiki/Motorola_68000_series Good news: Google claims to have a software remedy against Spectre, called the "Retpoline". It keeps the CPU speculator busy with harmless things while vulnerable commands are executed. I guess we will see it soon as compiler option. https://support.google.com/faqs/answer/7625886 (I love the image of a hyperactive 7-year old child wrapped in a warehouse of trampolines.) Man against hardware. Who will finally win ? Have a nice day :) Thomas
