问题描述
该代码有一个意外的文件结尾错误，我似乎无法理解这是怎么回事，您能帮我解决这个问题吗？
;'--------------------------------
.MODEL small
.STACK
.DATA
LengthOfStr EQU 38
Handle DW ? ; to store file handle
FileName DB "C:\EXP6_FOLDER\test.txt",0 ; file to be opened
OpenError DB "An error has occured(opening)!$"
ReadError DB "An error has occured(reading)!$"
Buffer DB 100 dup (?) ; buffer to store data
.CODE
main proc far
mov ax,@data ; set up ds to be equal to the
mov ds,ax ; data segment
mov dx,OFFSET FileName ; put address of filename in dx
mov al,2 ; access mode - read and write
mov ah,3Dh ; function 3Dh -open a file
int 21h ; call DOS service
mov Handle,ax ; save file handle for later
jc Erroropening ; jump if carry flag set - error!
mov dx,offset Buffer ; address of buffer in dx
mov bx,Handle ; handle in bx
mov cx,100 ; amount of bytes to be read
mov ah,3Fh ; function 3Fh - read from file
int 21h ; call dos service
jc ErrorReading ; jump if carry flag set - error!
mov bx,Handle ; put file handle in bx
mov ah,3Eh ; function 3Eh - close a file
int 21h ; call DOS service
mov cx,LengthOfStr ; length of string
mov si,OFFSET Buffer ; DS:SI - address of string
xor bh,bh ; video page - 0
mov ah,0Eh ; function 0Eh - write character
NextChar:
lodsb ; AL = next character in string
int 10h ; call BIOS service
loop NextChar
mov ax,4C00h ; terminate program
int 21h
Erroropening:
mov dx,offset OpenError ; display an error
mov ah,09h ; using function 09h
int 21h ; call DOS service
mov ax,4C01h ; end program with an errorlevel =1
int 21h
ErrorReading:
mov dx,offset ReadError ; display an error
mov ah,4C02h ; end program with an errorlevel =2
int 21h
main endp
end main
解决方法
暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！
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