ex5101.asm

启东计算机厂实验程序

       ORG 0000H
       LJMP START

       ORG 0030H
START: MOV A,#01H
LOOP:  MOV P1,A     ;累加器内容输出到P1口
       MOV R0,#0FFH
DE1:   MOV R1,#0FFH ;延时
DE2:   DJNZ R1,DE2
       DJNZ R0,DE1
       RL A
       SJMP LOOP
       END