Ich mache ein Konsolenprogramm, und meine Dateiprozeduren benötigen Dateiname, obwohl ich den Dateinamen von Benutzereingabe erhalten möchte, wenn Sie also in der Konsole/r schreiben, Sie können maximal 15 Buchstaben schreiben, die die .txt im Dateinamen enthalten, aber es sieht so aus, als ob mein Code nicht funktioniert, wie kann ich den Dateinamen von einer Benutzereingabe in eine Zeichenkette oder zu dieser Variablen filename db "filename.txt",0
bekommen?Wie bekomme ich Dateinamen von Benutzereingabe in DOS asm
meine Openfile proc (zum Beispiel):
proc OpenFile
;Open file
mov ah,3Dh
xor al,al
lea dx,[filename]
int 21h
jc openerror
mov [filehandle],ax
ret
openerror:
mov dx,offset ErrorOpenMsg
mov ah,9h
int 21h
ret
endp OpenFile
ORIGINAL-Full-Code:
IDEAL
MODEL small
STACK 100h
DATASEG
szMsg1 db "Hi! What do you want to do?",10,13,10,13,"/h-help(see all the commands)",10,13,"/e-Exit",10,13,10,13,"$"
szHelloWorld db 10,13,"Hello World!",10,13,"$"
ErrorMsg db 10,13,"Illegal Command,Try again!",10,13,"$"
filenameStr db 15 dup(?),0
help db 10,13,"HELP LIST:",10,13,"-----------",10,13,"Commands are:",10,13," /e-Exit",10,13," /h-help",10,13," /1-Says: 'Hello World!'",10,13,"$"
filename db ?,0
filehandle dw 0
ErrorOpenMsg db 'Error',10,13,'$'
FileNameLength db "file name consists of 8 letters max! (dont forget to add '.txt' at the end of the name: 'example.txt')",10,13,"/r/ ","$"
fileString db 255 dup (0)
space db " ","$"
CommandMsg db 10,13,"Enter your command:",10,13,"Command: ","$",10,13
string db ?
CODESEG
proc OpenFile
;Open file
mov ah,3Dh
xor al,al
lea dx,[filenameStr]
int 21h
jc openerror
mov [filehandle],ax
ret
openerror:
mov dx,offset ErrorOpenMsg
mov ah,9h
int 21h
ret
endp OpenFile
proc ReadFile
mov ah,3fh
mov bx,[filehandle]
mov cx,255
lea dx,[string]
int 21h
ret
endp ReadFile
proc DeleteFile
mov ah,41h
lea dx,[filename]
int 21h
endp DeleteFile
proc DisplayFileString
mov ah,09h
lea dx,[fileString]
int 21h
endp DisplayFileString
proc KeyStroke
xor ax,ax
int 16h
endp KeyStroke
proc WriteToFile
mov ah,40h
mov bx,[filehandle]
mov cx,255
lea dx,[fileString]
int 21h
ret
endp WriteToFile
proc CloseFile
mov ah,3Eh
mov bx,[filehandle]
int 21h
ret
endp CloseFile
start:
mov ax, @data
mov ds, ax
mov dx,offset szMsg1
mov ah,9h
int 21h
jmp GetCommandLetter
_Error:
mov dx,offset ErrorMsg
mov ah,9h
int 21h
GetCommandLetter:
mov dx,offset CommandMsg
mov ah,9h
int 21h
mov ah, 1h
int 21h
mov bl,al
mov ah, 1h
int 21h
mov bh,al
compare:
cmp bl,'/'
jne _Error
cmp bh,'e'
je _exit
cmp bl,'/'
jne _Error
cmp bh,'E'
je exit
cmp bl,'/'
jne _Error
cmp bh,'h'
je _help
cmp bl,'/'
jne _Error
cmp bh,'H'
je _help
cmp bl,'/'
jne _Error
cmp bh,'1'
je PrintLine
mov dx,offset space
mov ah,9h
int 21h
mov dx,offset FileNameLength
mov ah,9h
int 21h
cmp bl,'/'
jne _Error
cmp bh,'r'
je GetFileName
cmp bl,'/'
jne _Error
cmp bh,'R'
je GetFileName
jmp _Error
_exit:
jmp exit
GetFileName:
mov dx,offset space
mov ah,9h
int 21h
mov dx,offset filenameStr
mov bx,dx
mov [byte ptr bx],15
mov ah,0Ah
int 21h
mov dx,offset filenameStr
mov ah,9h
int 21h
call OpenFile
call ReadFile
call CloseFile
jmp GetCommandLetter
_help:
mov dx,offset help
mov ah,9h
int 21h
jmp GetCommandLetter
PrintLine:
mov dx, offset szHelloWorld
mov ah, 9h
int 21h
jmp GetCommandLetter
exit:
mov ax, 4c00h
int 21h
END start
mov [filehandle],ax
ret
openerror:
mov dx,offset ErrorOpenMsg
mov ah,9h
int 21h
ret
endp OpenFile
proc ReadFile
mov ah,3fh
mov bx,[filehandle]
mov cx,255
lea dx,[string]
int 21h
ret
endp ReadFile
proc DeleteFile
mov ah,41h
lea dx,[filename]
int 21h
endp DeleteFile
proc DisplayFileString
mov ah,09h
lea dx,[fileString]
int 21h
endp DisplayFileString
proc KeyStroke
xor ax,ax
int 16h
endp KeyStroke
proc WriteToFile
mov ah,40h
mov bx,[filehandle]
mov cx,255
lea dx,[fileString]
int 21h
ret
endp WriteToFile
proc CloseFile
mov ah,3Eh
mov bx,[filehandle]
int 21h
ret
endp CloseFile
start:
mov ax, @data
mov ds, ax
mov dx,offset szMsg1
mov ah,9h
int 21h
jmp GetCommandLetter
_Error:
mov dx,offset ErrorMsg
mov ah,9h
int 21h
GetCommandLetter:
mov dx,offset CommandMsg
mov ah,9h
int 21h
mov ah, 1h
int 21h
mov bl,al
mov ah, 1h
int 21h
mov bh,al
compare:
cmp bl,'/'
jne _Error
cmp bh,'e'
je _exit
cmp bl,'/'
jne _Error
cmp bh,'E'
je exit
cmp bl,'/'
jne _Error
cmp bh,'h'
je _help
cmp bl,'/'
jne _Error
cmp bh,'H'
je _help
cmp bl,'/'
jne _Error
cmp bh,'1'
je PrintLine
mov dx,offset space
mov ah,9h
int 21h
mov dx,offset FileNameLength
mov ah,9h
int 21h
cmp bl,'/'
jne _Error
cmp bh,'r'
je GetFileName
cmp bl,'/'
jne _Error
cmp bh,'R'
je GetFileName
jmp _Error
_exit:
jmp exit
GetFileName:
mov dx,offset space
mov ah,9h
int 21h
mov dx,offset filenameStr ;setting letters into string from input
mov bx,dx
mov [byte ptr bx],15
mov ah,0Ah
int 21h
mov dx,offset filenameStr ;output of the string,string input supposidly bad
mov ah,9h
int 21h
call OpenFile
call ReadFile
call CloseFile
jmp GetCommandLetter
_help:
mov dx,offset help
mov ah,9h
int 21h
jmp GetCommandLetter
PrintLine:
mov dx, offset szHelloWorld
mov ah, 9h
int 21h
jmp GetCommandLetter
exit:
mov ax, 4c00h
int 21h
END start
NEW-Full-Code:
IDEAL
MODEL small
STACK 100h
DATASEG
szMsg1 db "Hi! What do you want to do?",10,13,10,13,"/h-help(see all the commands)",10,13,"/e-Exit",10,13,10,13,"$"
szHelloWorld db 10,13,"Hello World!",10,13,"$"
ErrorMsg db 10,13,"Illegal Command,Try again!",10,13,"$"
filenameStr db 13,0,13 dup("$")
help db 10,13,"HELP LIST:",10,13,"-----------",10,13,"Commands are:",10,13," /e-Exit",10,13," /h-help",10,13," /1-Says: 'Hello World!'",10,13,"$"
filename db ?,0
filehandle dw 0
ErrorOpenMsg db 'Error',10,13,'$'
FileNameLength db "file name consists of 8 letters max! (dont forget to add '.txt' at the end of the name: 'example.txt')",10,13,"/r/ ","$"
fileString db 255 dup (0)
space db " ","$"
CommandMsg db 10,13,"Enter your command:",10,13,"Command: ","$",10,13
string db ?
CODESEG
proc OpenFile
;Open file
mov ah,3Dh
xor al,al
lea dx,[filenameStr+2]
int 21h
jc openerror
mov [filehandle],ax
ret
openerror:
mov dx,offset ErrorOpenMsg
mov ah,9h
int 21h
ret
endp OpenFile
proc ReadFile
mov ah,3fh
mov bx,[filehandle]
mov cx,255
lea dx,[fileString]
int 21h
ret
endp ReadFile
proc DeleteFile
mov ah,41h
lea dx,[filenameStr+2]
int 21h
endp DeleteFile
proc DisplayFileString
mov ah,09h
lea dx,[fileString]
int 21h
endp DisplayFileString
proc KeyStroke
xor ax,ax
int 16h
endp KeyStroke
proc WriteToFile
mov ah,40h
mov bx,[filehandle]
mov cx,255
lea dx,[fileString]
int 21h
ret
endp WriteToFile
proc CloseFile
mov ah,3Eh
mov bx,[filehandle]
int 21h
ret
endp CloseFile
start:
mov ax, @data
mov ds, ax
mov dx,offset szMsg1
mov ah,9h
int 21h
jmp GetCommandLetter
_Error:
mov dx,offset ErrorMsg
mov ah,9h
int 21h
GetCommandLetter:
mov dx,offset CommandMsg
mov ah,9h
int 21h
mov ah, 1h
int 21h
mov bl,al
mov ah, 1h
int 21h
mov bh,al
compare:
cmp bl,'/'
jne _Error
cmp bh,'e'
je _exit
cmp bl,'/'
jne _Error
cmp bh,'E'
je exit
cmp bl,'/'
jne _Error
cmp bh,'h'
je _help
cmp bl,'/'
jne _Error
cmp bh,'H'
je _help
cmp bl,'/'
jne _Error
cmp bh,'1'
je PrintLine
mov dx,offset space
mov ah,9h
int 21h
mov dx,offset FileNameLength
mov ah,9h
int 21h
cmp bl,'/'
jne _Error
cmp bh,'r'
je GetFileName
cmp bl,'/'
jne _Error
cmp bh,'R'
je GetFileName
jmp _Error
_exit:
jmp exit
GetFileName:
mov dx,offset space
mov ah,9h
int 21h
mov dx,offset filenameStr
mov bx,dx
mov [byte ptr bx],13 ;8+1+3+1
mov ah,0Ah
int 21h
mov dx,offset filenameStr + 2
mov ah,9h
int 21h
mov byte ptr [filenameStr+2+8],0
call OpenFile
call ReadFile
call CloseFile
jmp GetCommandLetter
_help:
mov dx,offset help
mov ah,9h
int 21h
jmp GetCommandLetter
PrintLine:
mov dx, offset szHelloWorld
mov ah, 9h
int 21h
jmp GetCommandLetter
exit:
mov ax, 4c00h
int 21h
END start
Offset beginnt, bevor Sie eine Datei öffnen Du musst seinen Namen irgendwo her bekommen. Wo und wie füllt man die Variable 'filename'? Haben Sie den Debugger eingecheckt, was enthält? Es ist nicht im Code ... –
Mögliches Duplikat von [wie kann ich den Dateinamen von Benutzereingabe in DOS asm] (http://stackoverflow.com/questions/36816865/how-can-i-get-file-name -von-user-input-in-dos-asm) –
@Seva Alekseyev ich den ganzen Code hinzugefügt haben – Warrior0201