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I wan't to learn how to access my floppy drive while running in protected mode, but i can't get any clue from the wiki article about this. Can somebody help me by pushing me in the right direction.

You could search this forum, I guess this subject has been discussed a lot.
You have three options:

Switch back to real mode to execute a bios call
Access the hardware directly.
I could say; use vm86 task, but hey, that requires a lot of programming to, and you still have to go to real mode to execute a bios call or access hardware directly, I believe.

i've tried, and i couldn't found anything.

davidv1992 wrote:i've tried, and i couldn't found anything.

At the end of the wiki article there are links. Those are probably what you're looking for.

This one isn't bad...

ralph brown should have a list of hardware in/outs. yours options are either return to real or direct access.

in the odd event that this is on a windows machine. theres a 21h interrupt.

there really should be a better FDD tutorial...and one with working FDD code at the end, or at least some kinda psuedo code...

hckr83 wrote:there really should be a better FDD tutorial...and one with working FDD code at the end, or at least some kinda psuedo code...

Write one.

I'd have to learn how to do floppy code first!

Try reading the datasheets at http://www.datasheetarchive.com/search. ... sType=part.

Basically, you write to various ports to select the command you want to execute, run it then wait for an interrupt. You can use pio or dma for data transfers (dma is probably better).

Regards,
John

Never fear, I is here:
Here is the pmode floppy driver from DexOS, it is well commented and follows the pedo code in the intel floppy controler PDF.

Floppy code:
http://www.dex4u.com/tuts/FloppyDriver.zip

Intel PDF:
http://bos.asmhackers.net/docs/floppy/d ... asheet.pdf

PS: I am doing a Dev Mag, anyone want to write a floppy tut is most welcome.
Sample:
http://www.dex4u.com/DexMag/DexMag1-0.htm