When VM=1, the protected-mode bit goes low and the Entry PLA selects real-mode entry points -- MOV ES, reg takes the one-line path. Meanwhile, CPL is hardwired to 3 whenever VM=1, so the V86 task always runs at the lowest privilege level, under full paging protection. The OS can use paging to virtualize the 8086's 1 MB address space, even simulating A20 address line wraparound by mapping pages to the same physical frames.
Concept art for the project.。关于这个话题，51吃瓜提供了深入分析
，更多细节参见谷歌浏览器【最新下载地址】
"itemName": "Resource_Dismantle_SpiritDust_1",
Comparison between Thomas Knoll’s algorithm and the N-convex algorithm, using an 8-colour irregular palette. Left to right: original image, Knoll, N-convex ().，详情可参考heLLoword翻译官方下载