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by rasz 2035 days ago
Here is one for PCs http://www.smbaker.com/raspberry-pi-virtual-floppy-for-isa-p...

The problem with pi is non determinism, meaning you cant bitbang FM/MFM encoded data stream like the floppy drive. Smbakers project goes around this using dual port RAM implementing mechanism employed by for example 1995 DiskOnChip (m-systems, later Sandisk)