此资料用8259A扩展中断程序，汇编跟C语言都有，还有74LS164扩展I/O的，以及intrins.h的函数应用，此为本人平时的心得，希望对大家有帮助-This information is extended with the 8259A interrupt program, compile with the C language has, there 74LS164 expansion I/O, as well as a function of intrins.h applications, this is my usual experience, we want to help. . .