ORG 0100H LP1:MOV R0,#0 MOV DPTR,#TAB LP2:MOV A,R0 MOVC A,@A+DPTR MOV P1,A LCALL DELY INC R0 CJNE R0,#40,LP2 MOV P1,#00H SJMP LP1 DELY:MOV R4,#100 DL1:MOV R2,#10 DL2:MOV R3,#7DH DL3:NOP NOP DJNZ R3,DL3 DJNZ R2,DL2 DJNZ R4,DL1 RET TAB:DB 18H,24H,42H,81H,00H,18H,24H,42H,81H,00H,18H,24H,42H,81H,00H DB 81H,42H,24H,18H,00H,81H,42H,24H,18H,00H,81H,42H,24H,18H,00H, 81H,42H,24H,18H,00H,81H,42H,24H,18H,00H END 最简便的方法就是将数据表扩展一下,上面就是用的这种方法,不怕麻烦的话,也可以将两种闪烁的程序分开来写。 |