The contents of the memory are preserved by disabling interrupts and disabling bus masters capable of causing a change in the contents of the memory.
通过禁止中断及禁止能够改变存储 器内容的总线主设备来保留存储器的内容。
While transferring control to the proper segment, the processor clears the IF flag, thus disabling further maskable interrupts.
当将控制转移到合适的段时，处理器清除IF标志，因此关闭将来的可屏蔽中断。
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