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Write assembly language program that reads the contents of an existing file and copies them to a new file.
Further your program must print messages in case:
- there is problem in opening existing file, message should be "File could not be opened"
- contents are copied to the new file, message should be "Successfully copied"

 

How far have you got and where are you stuck? Post the code you've written so far.

 

Write assembly language program that reads the contents of an existing file and copies them to a new file.
Further your program must print messages in case:
§ there is problem in opening existing file, message should be "File could not be opened"
§ contents are copied to the new file, message should be "Successfully copied"

 

How far have you got and where are you stuck? Post the code you've written so far.

 

[org 0x100]
jmp start

file_open: db 'C:\first.txt' ; File to be searched
handle_open: dw 0 ; Handle of file
file_create: db ’C:\new.txt' ; File to be created
handle_create: dw 0 ; Handle of file
mov ah, 0x3f ; DOS service for reading an opened file
mov bx, [handle_open] ; get file handle (pointer)
mov cx, 8192 ; number of bytes to read
mov dx, buff ; offset address of buffer
int 0x21

mov ah, 0x3e ; DOS service to close file
mov bx, [handle_open] ; file handle
int 0x21

mov si, buff ; offset of buff
mov cx, ax ; number of bytes in buffer