Nearly every protection-related instruction -- far CALL, far JMP, far RET, INT, IRET, MOV to segment register, task switch -- needs to load a segment descriptor from the GDT or LDT. The 386 microcode centralizes this into a shared subroutine called LD_DESCRIPTOR, which reads the 8-byte descriptor from memory and feeds the high DWORD (containing Type, DPL, S, and P bits) to the Test PLA for validation.
Последние новости。关于这个话题，WPS下载最新地址提供了深入分析
，这一点在safew官方版本下载中也有详细论述
圖像來源，Getty Images，更多细节参见雷电模拟器官方版本下载
Synchronous fast paths matter
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