int_0:
push psw
push acc
call loop
mov a,#00h ;
mov p1,a ;增加这两行,不就恢复初始状态了吗?
pop acc
pop psw
reti
int_0: ;版权所有:sipenli
push psw
push acc
call loop
pop acc
mov p1,a ;恢复初始状态
pop psw
reti