Re: Another DOS oddity...

From: Julian Perry <>
Date: Mon, 27 May 2013 10:29:00 +1000
Message-ID: <>
> That book is wrong in many places.

**snip chunk of interesting dissertation.

Learn something new everyday. A lot of things slotted into place after
reading Greg's explanation, and it makes perfect sense.
It ALSO explains a long standing mystery to me why, when writing .SEQ
files, the (1541) drive would bounce of track 18 before stepping to the next
track - something it doesn't do when saving a .PRG program file.
(saving a Program file is an atomic act, whereas a sequential file may
be open and processed for an extended period before being closed.)
(from memory this ALSO happens if a Secondary address other than 0 is
specified, but I'd have to check that)

Cool stuff.

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Received on 2013-05-27 01:01:23

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