From: Damian Yerrick <Bullcr_pd_yerrick AT hotmail DOT comRemoveBullcr_p>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Reading Disk Sectors
Organization: Pin Eight Software  http://pineight.8m.com/
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References: <ULRV5.4269$0z DOT 62544 AT news2-win DOT server DOT ntlworld DOT com> <200012011859 DOT NAA20531 AT envy DOT delorie DOT com> <WWwW5.3790$uP1 DOT 75299 AT news6-win DOT server DOT ntlworld DOT com>
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NNTP-Posting-Date: Tue, 05 Dec 2000 15:03:38 GMT
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Date: Tue, 05 Dec 2000 15:03:39 GMT
To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

On Sun, 3 Dec 2000 18:47:44 -0000, "Clive Minnican"
<clive_minnican AT hotmail DOT com> wrote:

>"DJ Delorie" <dj AT delorie DOT com> wrote in message
>news:200012011859 DOT NAA20531 AT envy DOT delorie DOT com...
>>
>> The first sector is sector 1, not sector 0.
>
>Thanks, I changed it around and everything now works fine. How come the
>format for sector is inconsistent with track and side, ie they start
>numbering from 0, is that how the original bios functions work?

IIRC, some old IBM mainframes stored a track's header in sector 0.
IBM BIOS kept this method (first data sector in a track is number 1)
presumably for source compatibility.

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