Path: utzoo!utgpu!watmath!clyde!att!rutgers!rochester!uhura.cc.rochester.edu!ur-valhalla!micropen!dave
From: dave@micropen (David F. Carlson)
Newsgroups: comp.unix.microport
Subject: Re: 386 UNIX and FDISK
Summary: 1002
Message-ID: <595@micropen>
Date: 20 Dec 88 16:37:47 GMT
References: <618@cimcor.mn.org> <659@bbking.KSP.Unisys.COM> <280@uport.UUCP>
Organization: Micropen Dirent Writing Systems, Pittsford, NY
Lines: 17

In article <280@uport.UUCP>, plocher@uport.UUCP (John Plocher) writes:
> >> Hmmm ... the basic PC disk IO interrupt 13 only has 10 bits for track number.
> >
> >But the underlying WD1010 register spec allows for 16 bits.
> 
> But the WD-1002 controller only uses 10 bits, the WD-1003 uses 12.  
>    -John Plocher

Of course, the WD1002 is a floppy only controller.  For the time being
addressing 1024 cylinders (8.5 meg) on a floppy seems sufficient!  :-)


-- 
David F. Carlson, Micropen, Inc.
micropen!dave@ee.rochester.edu

"The faster I go, the behinder I get." --Lewis Carroll