smg2.asm

来自「51单片机开发入门与典型实例」· 汇编 代码 · 共 26 行

;程序：SMG2.ASM
    START:   MOV    DPTR, #TABLE    
             MOV    R0, #0            
    LOOP:    MOV    A,R0           
             MOVC   A,@A+DPTR 
             MOV    P0,A
             ACALL  DLY1S
             INC    R0
             CJNE   R0,#10,LOOP
             JMP     START  
     DLY1S:  MOV    R5,#50
     D1:     MOV    R6,#100
     D2:     MOV    R7,#100
             DJNZ   R7,$
	     DJNZ   R6,D2
	     DJNZ   R5,D1
	     RET
TABLE:       DB  0C0H,0F9H,0A4H,0B0H
             DB  99H,  92H,  82H,  0F8H 
             DB  80H,  90H,  88H,  83H  
             DB  0C6H, 0A1H, 86H,  8EH  
             END