汇篇0-99.txt

来自「单片机写的程序都含有Protues仿真结果」· 文本 代码 · 共 59 行

COUNT	EQU	080H
SEC		EQU	090H
		ORG	0000H
		LJMP	MAIN
		ORG	000BH
		LJMP	INTO
		ORG	0030H
MAIN:	MOV TMOD,#01H
  		MOV TH0,#(65536-20000)/256
        MOV TL0,#(65536-20000) MOD 256
		SETB TR0
		SETB EA
		SETB ET0
		SJMP $

INTO:	MOV TH0,#(65536-20000)/256
        MOV TL0,#(65536-20000) MOD 256
        INC COUNT
		MOV A,COUNT
  		CJNE A,#50,LOOP2
		MOV COUNT,#00
		INC	SEC
		MOV A,SEC
		CJNE A,#60,LOOP1
		MOV SEC,#00
        
LOOP1:	MOV A,#2
		MOV B,A
		MOV A,COUNT
		DIV	AB
		MOV	A,B
		JZ	LOOP

		MOV A,SEC
		MOV	B,#10
		DIV AB
	    ORL A,#10H
		MOV P1,A
		
		RETI
LOOP:	MOV A,SEC
		MOV	B,#10
		DIV AB
		MOV A,B
		ORL A,#00H
		MOV P1,A
		
LOOP2:	RETI
		END