从键盘输入字符串按回车后换行输出

ASSUME CS:CODE, DS:DATA          DATA   SEGMENT                               
BUFFER DB  20DB  ?DB  20  DUP(0)    
CRLF   DB  0AH, 0DH,'$'  DATA   ENDS                                  CODE   SEGMENT                              
START:                                       MOV AX, DATA                         MOV DS, AX                      LEA DX,BUFFERMOV AH, 0AHINT 21HMOV AL, BUFFER+1ADD AL, 2MOV AH, 0MOV SI, AXMOV BUFFER[SI], '$'LEA DX, CRLF      MOV AH, 09H							 INT 21HLEA DX, BUFFER+2MOV AH, 09H							 INT 21HMOV AH, 4CHINT 21H
CODE   ENDS                                  
END    START                                 

效果演示：