方法1

interrupt 3 IntFunc1()
{
…/*code*/
}
Means that the third entry in the vector table is initialized with the address of IntFunc1().
方法2
In the C file:
interrupt IntFunc2()
{
…..
}
In the PRM file:
VECTOR ADRESS 0xFFF2 IntFunc2
Means that the address of IntFunc2 is written at address 0xFFF2.

VECTOR ADRESS 0xFFF2 IntFunc2
Means that the address of IntFunc2 is written at address 0xFFF2.

这个错了，0xFFF2是中断向量，存放的是中断程序的入口地址。