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.
▲ 图｜Tim’s Guide
。关于这个话题，爱思助手下载最新版本提供了深入分析
Photograph: Simon Hill
Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36，这一点在同城约会中也有详细论述
Credit: Samsung
Pre-orders for the S26 and S26+ are open today, and they'll be available on March 11. The phones will be available in purple, blue, black, white, silver and rose gold, though the latter two are online exclusives.，详情可参考safew官方版本下载