Reese Note: The value of the registers: the register not listed or is 0FFFFFFFFFFFFFFFFFFFFFFFF0h, which is not listed or for the undefined system startup, and is a transfer instruction. At this time, the base address in the cache register of the IDTR is 0000000000H ( Down is shown in the figure, the boundary is 3ffh, which is just that the interrupt vector table in the real mode can be placed in the task position of the interrupt vector table in the memory, but to maintain its structure and the form of the form. Otherwise, it will cause an abnormal interrupt, and the future run is run according to the real mode rule. Here, it refers to the initialization value, and the value after the reset is, it is almost the same.
