文件名称:interrupt
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实现中断服务的程序,PC机用户可使用的硬件中断只有可屏蔽中断,由8259中断控制器管理。中断控制器用于接收外部的中断请求信号,经过优先级判别等处理后向CPU发出可屏蔽中断请求,灯亮来表明中断实现.-Interrupt service program to achieve, PC machine users can use hardware interrupts may be maskable interrupt only by the 8259 interrupt controller management. Interrupt controller is used to receive external interrupt request signal priority through the discrimination of treatment issued to the CPU interrupt request can be shielded, lights to indicate interrupt.
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