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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.，推荐阅读WPS官方版本下载获取更多信息
Kinds of chain reaction "effects": BUTTERFLY, DOMINO, RIPPLE, SNOWBALL，推荐阅读搜狗输入法2026获取更多信息
This story was originally featured on Fortune.com