用8086匯編語言編寫壹個輸入字符串的程序

代碼如下：

SPACES DB? 20H,?20H,?20H,?20H,?24H

LINE DB 0DH,?0AH,?24H

DSEG ENDS

SSEG SEGMENT?PARA?STACK

DW?256?DUP(?)

SSEG ENDS

CSEG SEGMENT

ASSUME?CS:CSEG,DS:DSEG

BEGIN:

MOV?AX,?DSEG

MOV?DS,?AX

LOOP1:

MOV?AH,?08H

INT?21H

;?判斷回車鍵

MOV?DL,?AL

CMP?DL,?0DH

JNE?LOOP3

MOV?DX,?OFFSET?LINE

MOV?AH,?9

INT?21H

JMP?LOOP1

LOOP3:

;?判斷?SHIFT?鍵

MOV?DL,?AL

CMP?DL,?0EH

JNE?LOOP2

MOV?DX,?OFFSET?SPACES

MOV?AH,?9

INT?21H

JMP?LOOP1

LOOP2:

;?判斷?ESC?鍵

MOV?DL,?AL

CMP?DL,?1BH

JE?EXIT

;?顯示字符

MOV?DL,?AL

MOV?AH,?02H

INT?21H

JMP?LOOP1

EXIT:

MOV?AH,?4CH

INT?21H

CSEG ENDS

END?BEGIN