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Accessing Boot Sector data on diskette

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compdaugh's Avatar
Junior Member with 1 posts.
 
Join Date: Feb 2005
Experience: Beginner
19-Feb-2005, 01:30 PM #1
Question 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.
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