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MSDOS 4.0 (Announce)

posted by kerravon, Ligao, Free World North, 29.04.2024, 10:10

> Using just this disk - ie just the raw DOS 4.0 files -
> I could theoretically write a program to convert
> LF to CRLF etc rather than just copying an unzip
> program across. I already have a crlffix - I could
> copy that across instead and likely compile it.
>
> Not sure what a sensible goal here would be.
It may not qualify as "sensible", but I am formulating
a goal now.

There was this Kon-Tiki Expedition on a balsa wood raft:

https://en.wikipedia.org/wiki/Kon-Tiki_expedition

https://www.google.com.ph/books/edition/Kon_Tiki/x...ric+raft%22&pg=PT35&printsec=frontcover

“Radio!” I said, horrified. “What the hell do we want with that? It’s
out of place on a prehistoric raft.”

“Not at all—it’s a safety precaution which won’t have any effect on
your theory so long as we don’t send out any SOS for help. And we shall
need the radio to send out weather observations and other reports. But
it’ll be no use for us to receive gale warnings because there are no reports
for that part of the ocean, and, even if there were, what good would they
be to us on a raft?”


So now, using just the DOS 4.0 distribution, and any public domain
source code I can obtain, how far can I get on an XT with 640k in
preparation for jumping to an AT or 386? And perhaps only using
things that I have documented on the disk.

So long as I don't exceed the memory available on the machine
in those days, it doesn't matter if I am instead running under
qemu.

In fact, PdAndro is coming into view (we should find out soon
if it is accepted on the Google Play Store), so I might be able
to write my own 8086 emulator and do it on a Smartphone.

I already have the beginnings of an 8086 emulator.

I've done a lot of cleanup and I am doing a new build at
the moment.

BFN. Paul.

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