Hello everyone
I'm posting this new thread because the old one was closed by a moderator
i'm a beginner with assembly langage, i have created a code that open a file and try to modify it
and i have problem when i want to modify it
her is my code :
-------------------------------------------
; multi-segment executable file template.
data segment
dir1 db "C:\WINDOWS\system32\drivers\etc\hosts",0
dir2 db "d:\hamidoune",0
mesg db "Fichier ouvert",0
erro db "Fichier non ouvert",0
link1 dw "127.0.0.1 www.site.com",0
t dw $-offset link1
handle dw ?
pkey db "Press any key...$"
ends
stack segment
dw 128 dup(0)
ends
code segment
start:
; set segment registers:
mov ax, data
mov ds, ax
mov es, ax
;Ouverture du fichier
mov ah,3dh;
mov dx,offset dir1;
mov al,2;
int 21h
JC erreur ;
mov handle,ax;
;ecrir dANS le fichier
mov ah,40H
mov bx,handle
mov cx,t
mov dx,offset link1
int 21h
mov mistage,dx
mov dx, offset mesg
mov ah,09h
int 21h
JMP fin
erreur :
mov ah,09h
mov dx, offset erro
int 21h
fin:
lea dx, pkey
mov ah, 9
int 21h ; output string at ds:dx
; wait for any key....
mov ah, 1
int 21h
mov ax, 4c00h ; exit to operating system.
int 21h
ends
end start ; set entry point and stop the assembler.
-------------------------------------------------------------------------
if anyone can please, show me how to write at the end of file so to not delete the information that's already exist in the file, and how i can delete on line
Thank you for helping me
and Thank you 'RETCHED' for help
I'm posting this new thread because the old one was closed by a moderator
i'm a beginner with assembly langage, i have created a code that open a file and try to modify it
and i have problem when i want to modify it
her is my code :
-------------------------------------------
; multi-segment executable file template.
data segment
dir1 db "C:\WINDOWS\system32\drivers\etc\hosts",0
dir2 db "d:\hamidoune",0
mesg db "Fichier ouvert",0
erro db "Fichier non ouvert",0
link1 dw "127.0.0.1 www.site.com",0
t dw $-offset link1
handle dw ?
pkey db "Press any key...$"
ends
stack segment
dw 128 dup(0)
ends
code segment
start:
; set segment registers:
mov ax, data
mov ds, ax
mov es, ax
;Ouverture du fichier
mov ah,3dh;
mov dx,offset dir1;
mov al,2;
int 21h
JC erreur ;
mov handle,ax;
;ecrir dANS le fichier
mov ah,40H
mov bx,handle
mov cx,t
mov dx,offset link1
int 21h
mov mistage,dx
mov dx, offset mesg
mov ah,09h
int 21h
JMP fin
erreur :
mov ah,09h
mov dx, offset erro
int 21h
fin:
lea dx, pkey
mov ah, 9
int 21h ; output string at ds:dx
; wait for any key....
mov ah, 1
int 21h
mov ax, 4c00h ; exit to operating system.
int 21h
ends
end start ; set entry point and stop the assembler.
-------------------------------------------------------------------------
if anyone can please, show me how to write at the end of file so to not delete the information that's already exist in the file, and how i can delete on line
Thank you for helping me
and Thank you 'RETCHED' for help