The x86 protection model is notoriously complex, with four privilege rings, segmentation, paging, call gates, task switches, and virtual 8086 mode. What's interesting from a hardware perspective is how the 386 manages this complexity on a 275,000-transistor budget. The 386 employs a variety of techniques to implement protection: a dedicated PLA for protection checking, a hardware state machine for page table walks, segment and paging caches, and microcode for everything else.
We've made a lot of noise about Pokémon's 30th birthday celebrations, and so has the rest of the world. We've seen genuine excitement over new Pokémon TCG releases, the first-ever Lego Pokémon sets, and the return of nostalgic Pokémon games, and it feels like there's more to come from this special anniversary.
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Article InformationAuthor, 凱拉·愛潑斯坦(Kayla Epstein)