3.1.asm

开关控制8个灯的亮灭

cseg at 4000h
ajmp start
cseg at 400bh
ajmp intr0
start:  mov tomd,#01h
	mov th0,#9eh
	mov tl0,#58h
	mov ie,#82h
	setb tr0
h1:     mov r0,#05h
i1:     sjmp i1
intr0:  mov th0,#9eh
	mov tl0,#58h
	djnz r0,h2
	inc p1
	mov r0,#5
h2:     reti
	end