Fat12/16 problems

[FlashBurn]

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[mr. xsism]

what do u mean by garbage? Do u read in sector 0 index sector ok? try debugging it by printing ascii every step. That helps too

regards,
mr. xsism

[FlashBurn]

With garbage I mean chars, which cannot be in the root-sir. Yes, I read in the first sector(bootsector) and calc the start of the root dir and the size. I think the start of the root dior is the problem. I get a number is this a logical sector or a normal sector just in the first track/head on the disk?

[Pype.Clicker]

afaik. whatever sector nr you'll receive reading the FAT filesystem is a CLUSTER number. Which means you have to do

Code: Select all

chs = logical2chs(reserved_sectors + cluster_nr * cluster_size)

Check http://www.nondot.org/sabre/os/files/FileSystems/FatFormat.pdf in Operating System Resources Center for more infos.