主题:请高手指导
请问这个程序第15行哪有问题,老是提示invalid charscter in file
DATA SEGMENT
SET DB 100
DB ?
DB 100 DUP(?)
RESULT DB 0
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA
START:
MOV AX,DATA
MOV DS,AX
MOV SI,0
MOV DX,OFFSET SET ;输入
MOV AH,0AH
INT 21H
LEA SI,SET+2
AGAIN: MOV AL,[SI]
CMP AL,24H
JLE NEXT
CMP AL,41H
JL NEXT
CMP AL,5AH
JG RESTART
INC RESULT
JMP NEXT
RESTART:
CMP AL,61H
JL NEXT
CMP AL,7AH
JG FINISH
INC RESULT
JMP NEXT
NEXT:
ADD SI,1
JMP AGAIN
FINISH:
MOV DL,RESULT
OR DL,30H
MOV AH,2
INT 21H
MOV AH,4CH
INT 21H
CODE ENDS
END START
DATA SEGMENT
SET DB 100
DB ?
DB 100 DUP(?)
RESULT DB 0
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA
START:
MOV AX,DATA
MOV DS,AX
MOV SI,0
MOV DX,OFFSET SET ;输入
MOV AH,0AH
INT 21H
LEA SI,SET+2
AGAIN: MOV AL,[SI]
CMP AL,24H
JLE NEXT
CMP AL,41H
JL NEXT
CMP AL,5AH
JG RESTART
INC RESULT
JMP NEXT
RESTART:
CMP AL,61H
JL NEXT
CMP AL,7AH
JG FINISH
INC RESULT
JMP NEXT
NEXT:
ADD SI,1
JMP AGAIN
FINISH:
MOV DL,RESULT
OR DL,30H
MOV AH,2
INT 21H
MOV AH,4CH
INT 21H
CODE ENDS
END START