[hatari-devel] Zero divide in fdc.c

[Thorsten Otto <admin@xxxxxxxxxxx>]

With Falcon emulation and TOS 4.04, i get a zero divide (and core dump) in fdc.c:1531:

return ( ( EmulationDrives[Drive].nImageBytes / NUMBYTESPERSECTOR ) / SectorsPerTrack ) / SidesPerDisk;

SectorsPerTrack is zero at this point. Image is an empty 1.4MB empty floppy than can be accessed without error in EmuTOS.