data segment
     m1 db 'Hello,classmates!',13,10,36
     m2 db 'Lets learn assembler',13,10,36
     data ends
code segment
      assume cs:code,ds:data
start:
      mov ax,data
      mov ds,ax
      mov dx,offset m1
      mov ah,9
      int 21h
      mov dx,offset m2
      mov ah,9
      int 21h
      mov ah,4ch
      int 21h
code ends
         end start