home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

   comp.sys.tandy      Life is dandy cuz you're gettin a Tandy!      5,684 messages   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 4,030 of 5,684   
   Tim Mann to Roberto Bazzano   
   Re: Newdos info   
   12 Apr 06 10:24:58   
   
   From: usenet@tim-mann.org   
      
   On Wed, 12 Apr 2006 12:56:31 +0200, "Roberto Bazzano"  wrote:   
   > > My experience (admittedly on a small sample of machines) is that PC FDCs   
   > > can't read sectors with FA DAMs at all -- they are not recognized as   
   > > valid sectors.  It's certainly possible that some PC FDC's can read   
   > > them, but it seems unlikely.   
   >   
   > Exactly.   
   > And I'm absolutely sure that my disks have FA as directory address mark, and   
   > F8 as data address mark, because in the past I wrote an assembler routine   
   > that directly access the FD controller to read tracks and dump them to see   
   > what data there is on disks, so I looked at them.   
      
   I'd expect FA on the directory and FB on other tracks (not F8).   
      
   --   
   Tim Mann  usenet@tim-mann.org  http://tim-mann.org/   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca