Microcode handles the stateful, multi-step operations -- stack switches, descriptor loading, V86 frame management -- that are too irregular for fixed hardware.
2024年12月20日 星期五 新京报，这一点在Line官方版本下载中也有详细论述
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To avoid the two memory reads on every access, the 386 includes a 32-entry Translation Lookaside Buffer (TLB) organized as 8 sets with 4 ways each. Each entry stores the virtual-to-physical mapping along with the combined PDE+PTE permission bits.