该程序使每次CPU响应外部中断IRQ3时显示字符串“THIS IS A 8259A INTERRUPT!”。中断10次后，程序返回DOS。 中断请求通过ISA总线的IRQ3端输入，中断源用单脉冲源代替（来自实验箱）。-The program so that each CPU in response to external interrupt IRQ3 to display the string

8259a中断控制器代码，实现芯片的全部功能-8259a interrupt controller code, to achieve the full functionality of the chip

8259中断控制器的汇编语言程序,通过对8259中断控制器命令字的配置,实现中断服务程序的编写.-8259Interrupt controller assembly language