Write to floppy

Hi,

I would like to write something to my floppy, here is my testing code

Code:

---

ORG 100h

mov ah,03h
mov al,1  ;number of sectors
mov ch,0  ;cylinder
mov cl,1  ;sector
mov dh,0  ;head
mov bx,1584h 
int 13h   
             
mov al,bx  ;this just print
mov ah,0eh
int 10h

ret

---

is this code write something to my floppy?
first i think so but when i tried to remove my floppy this code still not error
so, i confuse that is it write to my floppy or where else .... :confused:

how can i write to floppy by specify each byte on that floppy?
anyone has some tiny code to do this?

Please help ....
thanks

what are you trying to write to the floppy?

I want to write floppy at Sector1 to be able to boot from that floppy.
I just want to boot from floppy and then screen would show "This is my first boot from floppy".

How can i write an assembly to Sector1 on floppy?
Any kind of data can be written to floppy?

thanks