Hi, >> What DOS is then used to access the 810/1050? And how does that DOS >> know how large they are? > > On format, you simply select the target size. Afterwards, the size is stored in > the allocation table. Different DOSs store the size tables > differently, and there > are a multitude of "raw" formated disks, with no DOS. Now I got it - at least I think so: 1. Many/most devices don't know/tell their size so the user must provide it when formatting media. 2. There are many DOSes and they store their size information in different ways. >>> Perhaps the "best" method would be to query for the percom block, and if >>> this isn't available, default to brute force method. I don't think trying >>> to figure out what DOS formatted the drive is useful in this case. > I think is query the percom block, and if it's not present, just > return 0. So, it's > up to the calling application knowing the best method to access the disk. How much code would be necessary to additionally detect DOS 2.5 720/1040 disks? Regards, Oliver ---------------------------------------------------------------------- To unsubscribe from the list send mail to majordomo@musoftware.de with the string "unsubscribe cc65" in the body(!) of the mail.Received on Mon Oct 22 10:39:36 2012
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