www.pudn.com > 8pcsLEDliangliushui.rar > 2.asm

   org 0000h 
   ljmp start 
   org 30h 
start: mov a,#02h 
loop:  mov p1,a 
       rl a 
       lcall delay  
       ljmp loop 
delay: 
    mov r7,#0ffh 
d1: mov r6,#0ffh 
d2: djnz r6,d2 
    djnz r7,d1 
    ret 
    end