汇编程序设计显示自己姓第一个英文字母

STACK SEGMENT STACK
      DB 200 DUP(0)
STACK ENDS
CODE SEGMENT
     ASSUME CS:CODE,SS:STACK
START:
      MOV AH,0
      MOV AL,2
      INT 10H
      MOV AH,15
      INT 10H
      
      MOV DX,0128H
      MOV AH,2
      INT 10H
      
      MOV AL,04
      MOV BL,0F0H
      MOV CX,1
      MOV AH,9
      INT 10H
      
      MOV DX,012aH
      MOV AH,2
      INT 10H
      
      MOV AL,04
      MOV BL,0F0H
      MOV CX,1
      MOV AH,9