麻烦高手们看看如下程序,为什么最后一个LED亮的久一点 我想不明白
ORG 0000H
START:MOV R2,#08H
MOV R3,#07H
MOV A,#01H
NEXT:
MOV P0,A
ACALL DELAY
RL A
DJNZ R2,NEXT
NEXT1:
RR A
MOV P0,A
ACALL DELAY
DJNZ R3, NEXT1
AJMP START
DELAY: MOV R5,#0FFH
D1: MOV R6,#0FFH
D2: MOV R7,#02H
D3: DJNZ R7,D3
DJNZ R6,D2
DJNZ R5,D1
RET
END