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From nntp.teleport.com!newsfeed.direct.ca!hunter.premier.net!news.mathworks.com!newsfeed.internetmci.com!vixen.cso.uiuc.edu!prairienet.org!dkrull Sun Aug 11 14:38:51 1996
Path: nntp.teleport.com!newsfeed.direct.ca!hunter.premier.net!news.mathworks.com!newsfeed.internetmci.com!vixen.cso.uiuc.edu!prairienet.org!dkrull
From: dkrull@prairienet.org (Don Krull)
Newsgroups: comp.lang.asm.x86
Subject: Re: DOS Sector => Physical Sector
Date: 5 Aug 1996 11:41:54 GMT
Organization: University of Illinois at Urbana
Lines: 14
Message-ID: <4u4mm2$2kn@vixen.cso.uiuc.edu>
References: <4tiluk$d8c@josie.abo.fi>
Reply-To: dkrull@prairienet.org (Don Krull)
NNTP-Posting-Host: firefly.prairienet.org
In a previous article, bhallstr@abo.fi asks:
> Does anyone have a formula for converting DOS Sectors to
> Physical Sectors (Head, Cylinder, Sector) such as used in
> INT 13h?
DOS_sector_num = BIOS_sector_num - 1 + Head_num*Sectors_per_track
+ Track_num*Sectors_per_track*Total_heads
BIOS_sector_num = 1 + (DOS_sector_num MOD Sectors_per_track)
Don
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