课本第三章例题

例3-1

;p31,例3.1

DATA SEGMENT
;
DATA ENDS

CODE SEGMENT
    ASSUME CS:CODE
 START: 
    MOV AX,DATA
    MOV DS,AX

    MOV AH,1
    INT 21H
    MOV DL,AL
    ADD DL,1
    MOV AH,2
    INT 21H

    MOV AH,4CH
    INT 21H
CODE ENDS
 END START;p31,例3.1

DATA SEGMENT
;
DATA