换句话说，控制单元在解决完中断信号后，处理的指令就是选中的处理函数的第一条指令。

In other words, the instruction processed by the control unit after dealing with the interrupt signal is the first instruction of the selected handler.

youdao

计算机中，解释并执行指令的一种功能单元。注：处理器至少包含有一个指令控制器和一个算术与逻辑运算器。

In a computer, a functional unit that interprets and executes instructions. Note: a processor consists of at least an instruction control unit and an arithmetic and logic unit.

youdao

对每个异常，CPU控制单元也生成一个硬件错误码，并在开始执行处理函数前将其压入内核空间栈中。

For some exceptions, the CPU control unit also generates a hardware error code and pushes it on the Kernel Mode stack before starting the exception handler.

youdao