leddisp.asm

来自「单片机入门,包括9个小实验的汇编程序和protues仿真,可连接观看程序运行效果」· 汇编 代码 · 共 32 行

		ORG 0000H
		MOV 78H,#01H
		MOV 79H,#02H
		MOV 7AH,#03H
		MOV 7BH,#04H
		MOV 7CH,#05H
		MOV 7DH,#06H
		MOV 7EH,#07H
				
	DISP:MOV  R1,#78H
		MOV R3,#07H
		MOV DPTR,#TAB
	LOOP:MOV  A,@R1
		MOVC A,@A+DPTR
		MOV P3,A
		LCALL DLIMS
		INC R1
		DJNZ R3,LOOP
		AJMP DISP
	TAB:DB 0C0H,0F9H,0A4H,0B0H
	    DB 99H,92H,82H,0F8H
          DB 80H,90H,88H,83H
	    DB 0C6H,0A1H,86H,8EH,0FFH
	
DLIMS:MOV R4,#0FFH
	LOOP1:DJNZ R4,LOOP1
		MOV R4,#0FFH
	LOOP2: DJNZ R4,LOOP2
		RET
      END