V86 mode is entered through IRETD when the VM bit is set in the stacked EFLAGS. The microcode detects this with a conditional jump:
Цены на нефть взлетели до максимума за полгода17:55
，详情可参考同城约会
2026-02-26 12:00:00
let totalBytes = 0;
代码要点：倒序遍历，先算右侧再推左侧；栈内维护「右侧候选更大值」，单调递增（栈顶最小）。