各位大虾，我是刚学汇编语言的一个学生，现在有个语言，希望大家能帮我把它注释下，谢谢。
ORG 3130H
JMP A81
TAB     DW LED0,LED1,LED2,LED3,LED4,LED5,LED6,LED7
DW LED8,LED9,LEDA,LEDB,LEDC,LEDD,LEDE,LEDF
A81:    MOV BX,OFFSET TAB
MOV SI,4000H
MOV AL,[SI]
AND AL,0FH
SHL AL,1
MOV AH,00H
ADD BX,AX
JMP [BX]
LED0:   MOV AL,0C0H
JMP LEDX
LED1:   MOV AL,0F9H
JMP LEDX
LED2:   MOV AL,0A4H
JMP LEDX
LED3:   MOV AL,0B0H
JMP LEDX
LED4:   MOV AL,99H
JMP LEDX
LED5:   MOV AL,92H
JMP LEDX
LED6:   MOV AL,82H
JMP LEDX
LED7:   MOV AL,0F8H
JMP LEDX
LED8:   MOV AL,80H
JMP LEDX
LED9:   MOV AL,90H
JMP LEDX
LEDA:   MOV AL,88H
JMP LEDX
LEDB:   MOV AL,83H
JMP LEDX
LEDC:   MOV AL,0C6H
JMP LEDX
LEDD:   MOV AL,0A1H
JMP LEDX
LEDE:   MOV AL,86H
JMP LEDX
LEDF:   MOV AL,8EH
JMP LEDX
LEDX:   MOV DX,0FFDCH
OUT DX,AL
MOV CL,20H
MOV DX,0FFDDH
LEDX1:  MOV AL,CL
OUT DX,AL
PUSH CX
CALL DLL
POP CX
ROR CL,1
JMP LEDX1
DLL:    MOV BX,0020H
DL1:    DEC BX
CMP BX,0000
JZ DL3
MOV CX,04FFH
LOOP $
JMP DL1
DL3:    RET