汇编借助于条件转移实现循环判断是否为平方数

已知一个两位十进制数存于字类型变量x中，请判断是不是平方数

data segment
  x dw 36
data ends
code segment
  assume cs:code,ds:data
  main proc far
  start:
  mov ax,data
  mov ds,ax

  mov cx,0
  mov bx,x
L1:
  mov dx,0
  mov ax,bx
  inc cx
  div cx
  cmp cx,9
  ja L2
  cmp cx,ax
  jnz L1
  cmp dx,0
  jnz L1

L3:
  mov dl,'y'
  jmp L4
L2:
  mov dl,'n'
L4:
  mov ah,02h
  int 21h

  mov ax,4c00h
  int 21h
  main endp
code ends
end start