模块化程序的疑问

帮忙看一下下面两个程序连接后有啥问题,为啥不显示字符串

;sy36.asm
DATAS SEGMENT para common 'data'
DATAS ENDS

STACKS SEGMENT para stack 'stack'
STACKS ENDS

CODES SEGMENT para public 'code'
    ASSUME CS:CODES,DS:DATAS,SS:STACKS
START:
    MOV AX,DATAS
    MOV DS,AX
   
CODES ENDS
    END START
;sy37.asm
DATAS SEGMENT para common 'data'
    buf1 db 'well come to china','$';此处输入数据段代码  
DATAS ENDS

STACKS SEGMENT para stack 'stack'
    ;此处输入堆栈段代码
STACKS ENDS

CODES SEGMENT para public 'code'
      mov dx,offset buf1
      mov ah,9
      int 21h
      MOV AH,4CH
      INT 21H
CODES ENDS
    END

[[italic] 本帖最后由 longxies 于 2008-1-3 16:57 编辑 [/italic]]