控制部件将数据送到算逻部件中，然后由算逻部件完成执行指令所需的算术或逻辑操作。

Data are brought into the ALU by the control unit, and the ALU performs whatever arithmetic or logic operations are required to help carry out the instruction.

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这些值定义了中断或异常处理函数的第一条指令的逻辑地址。

These values define the logical address of the first instruction of the interrupt or exception handler.

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