it is impossible to write floppydirvers without irqs.
It is possible to write some without dma, but this is much more complicated, cause an interrupt will come for every single byte, wich you then must transfer from the fdc to its correct adress in the memory.
infos on how to program the dma
http://www.programmersheaven.com/file.asp?FileID=6345This one s about the fdc (the examples are ****!)
http://debs.future.easyspace.com/Programming/Hardware/FDC/floppy.htmlalso very good is to have a look at the
http://gazos.sourceforge.net/fdc.c and dma.c files