《操作系统》的实验代码。
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  1. #ifndef __KERN_DRIVER_PICIRQ_H__
  2. #define __KERN_DRIVER_PICIRQ_H__
  3. void pic_init(void);
  4. void pic_enable(unsigned int irq);
  5. #define IRQ_OFFSET 32
  6. #endif /* !__KERN_DRIVER_PICIRQ_H__ */