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.
В России ответили на имитирующие высадку на Украине учения НАТО18:04。业内人士推荐Line官方版本下载作为进阶阅读
，更多细节参见safew官方下载
generate amazing logos for you.
Nature, Published online: 25 February 2026; doi:10.1038/d41586-026-00619-4。WPS官方版本下载对此有专业解读