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.
“在中国几千年的文明史上，帝王将相何其多，但在百姓头脑中留下记忆的也不过百来号人。”“青史留名与官阶并无本质联系，而是与做事相联系。”
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A reprieve for cinemas but less content
"But by proving the technology it really opens the door for an economically viable product, where things can be made in space and return to Earth and have use and benefit to everybody on Earth. And that's really exciting."
据了解，宝马此举也借鉴了美国斯帕坦堡工厂的成功经验——当地试点的人形机器人，曾在10个月内支撑3万辆宝马X3的生产，每周一至周五每天工作十小时。完成9万次零部件精准搬运，持续运行1250小时。