CODEWITHSUNDEEP
assemblyemu8086
Sarthak Gupta
Sarthak Gupta

Reputation: 813

Can not delete file in emu 8086

 .model small

.data

filename db "name.txt",0     
err db "error$"
.code          

start:
mov ax,@data
mov ds,ax
;;file is opening
mov ah,3dh
lea dx,filename
mov al,0
int 21h

jc err1
;delete the file not working
 mov ah, 41h
lea dx,filename
int 21h

mov ah,4ch
int 21h

err1: lea dx,err
mov ah,09h
int 21h

end start

I am trying to delete the file from the directory , but the code is not working , i can open and read the file but cant delete the file. Whats wrong with my code?

Upvotes: 1

Views: 483

Answers (1)

Jose Manuel Abarca Rodríguez
Jose Manuel Abarca Rodríguez

Reputation: 10381

Probably your operating system doesn't allow to delete an open file, try close it:

HANDLER DW ?        ;◄■■ VARIABLE IN DATA SEGMENT.
...
;;file is opening
mov ah,3dh
lea dx,filename
mov al,0
int 21h     
jc err1
MOV HANDLER, AX ;◄■■ PRESERVE FILE HANDLER.

;CLOSE FILE.
MOV AH, 3EH     ;◄■■
MOV BX, HANDLER ;◄■■ HANDLER OF FILE TO CLOSE.
INT 21H

;delete the file NOW IS working
 mov ah, 41h
lea dx,filename
int 21h

Upvotes: 3

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