汇编 输入密码.并严整在第几次正确.次数为3次（效果图）

现在汇编忘记的查不多了~

data segment
passw db ‘123456’
buf db 80,81 dup(0)
disp1 db 13,10,’password is true.try time=$’
disp2 db 13,10,’password is ereer.$’
data ends
code segment
assume cs:code,ds:data
main:mov ax,data
     mov ds,ax
     mov es,ax
     mov bl,0
again:mov ah,10
      lea dx,buf
      int 21h
      inc bl
      mov cl,[buf+1]
      mov ch,0
      cmp cx,offset buf – offset passw
      jne lab1
      lea si,passw
      lea di,buf+2
      cld
      repz cmpsb
      jz disp
  lab1:cmp bx,3
       jae err
       jmp again
  disp:lea dx,disp1
  mov ah,9
  int 21h
  mov ah,2
  add bl,30h
  mov dl,bl
  int 21h
  jmp exit
  err:lea dx,disp2
  mov ah,9
  int 21h
  exit:mov ah,4ch
       int 21h
       code ends
       end main