.386
DATA SEGMENT use16
        MESG DB 'hello masm','$'
DATA ENDS
CODE SEGMENT USE16
    ASSUME CS:CODE,DS:DATA
BEG:    MOV AX,DATA
        MOV DS, AX
LAST:   MOV AH,9
        MOV DX, OFFSET MESG
        INT 21H
        MOV AH,4CH
        INT 21H;BACK TO DOS
        
CODE ENDS
END  BEG