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Accessing Boot Sector data on diskette

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compdaugh

Junior Member with 1 posts.

Join Date: Feb 2005

Experience: Beginner

19-Feb-2005, 02:30 PM #1

Accessing Boot Sector data on diskette

I'm writing a diskette driver and need to access the following from the boot sector of a diskette:

Sectors Per Track

Number of Heads (Tracks per cylinder)

number of cylinders.

My book gives me adresses such as:

0x18 0x19 Sectors Per Track

but doesn't even begin to explain how to access the data. I'm trying to set a variable in one of my C functions.

techguy.org/332430

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