帮我写一份汇编代码，文件后缀为.ASM,基于8086架构，题目要求是“利用74LS23驱动发光二极管实现发光二极管L1到L4.L8到L5循环点亮”;”，第一句代码应该为DATAS SEGMENT

DATAS SEGMENT
LED DB 0F0H
DATAS ENDS

CODES SEGMENT
ASSUME CS:CODES, DS:DATAS

START:
MOV AX, DATAS
MOV DS, AX

LOOP:
MOV AL, LED
OUT 01H, AL
MOV BL, LED
SHR BL, 4
OUT 03H, BL
ROL LED, 1
JNC SKIP
MOV LED, 0F0H

SKIP:
MOV CX, 0FFFFH
LOOP $-1
JMP LOOP

CODES ENDS
END START