实训汇编语言设计——比较两个字符串

比较两个字符串,相同显示Y否则显示N

data segment
 string1 db 'gaoyufeng'
 l1 equ $-string1
 string2 db 'gaoyubing'
 l2 equ $-string2
 
data ends
stack segment para stack'stack'
      stapn dw 50 dup(?)
stack endscode segment
 main proc far
 assume ds:data,cs:code,ss:stack
start:
     push dx
    sub ax,ax
    push ax
    mov ax,data
    mov ds,ax
    mov es,ax
    mov ax,stack
    mov ss,ax
    mov ax,l2              
 cmp ax,l1               
 jnz showN              
 
 mov si,offset string1
 mov di,offset string2
 mov cx,l1
 repe cmpsb              
 jnz showN              showY:mov ah,2
      mov dl,'Y'
   int 21h
   jmp exitshowN:mov ah,2
      mov dl,'N' 
   int 21hexit: ret
          main endp
    code ends
  end start