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   comp.sys.atari.st      Discussion about 16 bit Atari micros      15,439 messages   

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   Message 14,598 of 15,439   
   Ari Feldman to xlator@cix.compulink.co.uk   
   Re: Floppy disk formats   
   03 Oct 11 21:54:32   
   
   From: ari1970ster@gmail.com   
      
   Peter,   
      
   I never knew about that utility. Thanks for the tip.   
      
   Ari   
      
   On 2011-10-02 11:05:38 -0400, xlator@cix.compulink.co.uk said:   
      
   > In message <4e8531a6$0$27403$4d5ecec7@news.xsusenet.com>,   
   > ari1970ster@gmail.com said:   
   >   
   >> Various utlities existed for the ST such as DC-Formatter and countless   
   >> others that allowed STs running older versions of TOS to format   
   >> compatible IBM / MS-DOS floppies.   
   >>   
   >> What you couldn't do on an ST was format a bootable IBM floppy (FORMAT   
   >> /S) since the boot loader was tied to the computer's OS and host   
   >> architecture. Otherwise, they were fully interchangable.   
   >   
   > There is also an Atari program DISKMOD.TOS used with a 512-byte   
   > file BLOCK0.DAT which writes a PC-type boot sector to any   
   > 80-track 9-sector disk without affecting any other data that may   
   > be on the disk. The first few bytes are '4IBM  3.2' and near the   
   > end there is the string 'IBMBIO  COMIBMDOS  COM', both of which   
   > indicate that this is the IBM format.   
   >   
   > As far as DOS is concerned, it's the first 3 bytes that matter.   
   > i.e. 'EB 34 90' in hex.   
   >   
   > The bootable floppies on both Ataris and PCs had the same start   
   > bytes, followed by identifiers giving number of sides, tracks and   
   > sectors, but then a small executable program in the rest of the   
   > sector.   
   >   
   > Regards, /Peter/   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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