中断点灯.asm

包含单片机开发的入门程序

ORG 0000H
LJMP MAIN
ORG 000BH
LJMP TO_INT0
MAIN:
MOV TMOD,#01H
MOV TH0,#3CH
MOV TL0,#0B0H
SETB TR0
SETB ET0
SETB EA
HERE:AJMP HERE
TO_INT0:PUSH PSW
        PUSH A
        CLR ET0 ;关中断

        MOV TH0,#3CH
        MOV TL0,#0B0H
        CPL P0.0

        SETB ET0;关中断
        POP A
        POP PSW
        RETI