为来自某些虚拟驱动器(cobd(块设备)、conet(网络)、cocon(控制台))的中断和请求进行代理转发。

Act as a forwarder of interrupts and requests from several virtual drivers: cobd (block device), conet (network), and cocon (console).

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异常就是为了处理出错或者处理其它意外情况而中断代码块的正常控制流。

Exceptions are a means of breaking out of the normal flow of control of a code block in order to handle errors or other exceptional conditions.

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一个主要方法(图9.5)使用创造对象为控制器块，初始化外围设备和设定必需的定时器和中断。

A main method (Figure 9.5) is used to create objects for the controller blocks, initialize the peripherals and to set up the required timers and interrupts.

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