generating bad blocks on atari disks

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1 total messages Started by Michael Jenkin Thu, 14 Mar 1985 16:53

#610

Author: Michael Jenkin
Date: Thu, 14 Mar 1985 16:53

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Recently I saw an add in Antic or Analog for a software bad-block/custom
format program.  Does anyone know how a software bad-block generator
would work on an un-altered 810/1050 drive?  The obvious way would
be to perform alternating writes with different bit patterns until
a write error occurs, but this seems a little brute-force.
I don't have any documentation on the way the drive handles SIO commands,
but it might be possible to specify very short time-out times to the
device, or to interrupt it during the execution of a command, or maybe
there are undocumented CIO commands for the device?  Does anyone
out there have any ideas.


--
Michael Jenkin					 University of Toronto
{wearing my peril-sensitive sunglasses}
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