On Thu, 5 Dec 2002, Sellam Ismail wrote:
> > I have the Pennington book, Sellam. If you can't find a copy locally, I
> > might be able to scan the pertinent sections.
> ABE turned up nothing so yes, I could use a scan. Unless Fred can find
> and loan me his copy.
I have located my copy of Pennington.
I also have a copy (from the same publishing series) of Farvour's "TRS-DOS
2.3 Decoded & other Mysteries", which has descriptions of the data
structures and code disassembly of the OS.
Of all of the folk who responded with recollections of what the [minor]
differences are between model 1 and model 3 TRS-DOS, I'd trust Tim Mann's
most. The rest of us are all working from flaky old memories; and if not
refreshed regularly, wetware RAM is not non-volatile.
If you do a dump of some of the directory sectors (256 bytes per sector,
track 17?), it won't be hard to work through them. TRS-DOS attempted to
implement some stuff that was really overkill for a micro OS (like the
H.I.T.), but finding and reading the files isn't hard.
I'm grading exam papers for the next few days, so you could come by my
house (call first), or come up to the college next Monday, Tuesday, or
Wednesday evening.
--
Grumpy Ol' Fred cisin_at_xenosoft.com
Received on Wed Dec 11 2002 - 23:06:00 GMT