程序代码：

START:
      MOV AX,DATA
      MOV DS,AX
X1:   MOV,AH,01H
      INT 21H
KEY:  MOV AH,07H
      INT 21H
      CMP AL,'Q'
      JZ  EXIT

 
      CMP AL,O8H
      JZ X1
X2:
      SUB AL,31H
      MOV AH,00H
      MOV SI,AX
      SAL SI,1
;++++++++++++++++++++++++++
      MOV DX,0012H
      MOV AX,0000H
      MOV BH,00H
      MOV BL,AL
      DIV MOSIC[SI]
      MOV BX,AX
;++++++++++++++++++++++++
      MOV DX,43H
      MOV AL,0B6H
      OUT DX,AL
      IN AL,42H
      MOV AL,BL
      OUT 42H,AL
      MOV AL,BH
      OUT 42H,AL
;+++++++++++++++++++++
      IN AL,61H
      OR AL,03H
.....
下面的不会了     



      
     

程序代码：

前面的我忘记写上去了
不好意思
现在的是我写的完整程序
DATA SEGMENT
MUSIC DW 524,588,660,598,784,988,1048
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,CS:DATA
START:
      MOV AX,DATA
      MOV DS,AX
X1:   MOV,AH,01H
      INT 21H
KEY:  MOV AH,07H
      INT 21H
      CMP AL,'Q'
      JZ  EXIT

      CMP AL,O8H
      JZ X1
X2:
      SUB AL,31H
      MOV AH,00H
      MOV SI,AX
      SAL SI,1
;++++++++++++++++++++++++++
      MOV DX,0012H
      MOV AX,0000H
      MOV BH,00H
      MOV BL,AL
      DIV MOSIC[SI]
      MOV BX,AX
;++++++++++++++++++++++++
      MOV DX,43H
      MOV AL,0B6H
      OUT DX,AL
      IN AL,42H
      MOV AL,BL
      OUT 42H,AL
      MOV AL,BH
      OUT 42H,AL
;+++++++++++++++++++++
      IN AL,61H
      OR AL,03H
.....