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000231_news@newsmaster….columbia.edu _Sun Feb 15 22:39:45 1998.msg
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Path: news.columbia.edu!panix!nntprelay.mathworks.com!news.maxwell.syr.edu!news.magicnet.net!bilver.magicnet.net!bill
From: bill@bilver.magicnet.net.REMOVETHIS (Bill Vermillion)
Subject: Re: null modem file transfer
Organization: W.J.Vermillion - Orlando/Winter Park
Message-ID: <EoGBHM.3r8@bilver.magicnet.net>
References: <6c2bs9$lo9$1@apakabar.cc.columbia.edu> <9802131517.aa08163@vagabond.armory.com> <EoDx0J.632@bilver.magicnet.net> <6c75km$jcc@shady.shady.com>
Date: Mon, 16 Feb 1998 03:10:34 GMT
Lines: 56
Xref: news.columbia.edu comp.unix.sco.misc:60985 comp.protocols.kermit.misc:8418
In article <6c75km$jcc@shady.shady.com>,
Kevin Smith <kbs=cusm@shady.com> wrote:
>In article <EoDx0J.632@bilver.magicnet.net> bill@bilver.magicnet.net.REMOVETHIS (Bill Vermillion) writes:
>>
>>As to the age - I remember that the original kermit sources I had
>>were in the 40K size. I remember that as I had to get a transfer
>>into an old Z8000 Onyx - and the only way to get the source in was
>>to open up vi, and them dump the text into that from terminal emulator
>>on another computer, and then write out the source and compile it.
>>The floppys for xfer maxed out at 88K
>I have to drift off topic here since the Z8000 Onyx was my first unix.
>The C compiler was extra, and there was no vi yet. Did all our development
>in assembly with ed. I think we started with 256k memory and an 80mb disk
>(might have only been 40mb). Couldn't run two adb's at once or the machine
>would thrash to halt. Learned unix by reading the printed man pages.
>
>Ahhh, the memories. Thanks Bill.
The only work I did on that was to write a C program to interface a
serial device that tracked fuel deliveries from a device on a truck
and then the RAM module was brought back and read into the
computer.
That was frustrating as I took the device home and wrote the code
there, but could not make it work on the Onyx. Some commands, all
single letter would work, others would fail.
So I put in print statements everywhere.
The system was told to be 8,n,1. However the print statements
showed that not to be true.
It added parity. Of course this forced the bit 7 high, on the odd
bit count. Now when bit 7 went high it sign extended and set bits
8 thru 15 high too. So I was send a positive ASCII number for the
letters that had an even number of bits, and a 16 bit negative
number for the others. Masking characters fixed that, but that
was a bizarre compiler.
I had to put the kermit in so we could transfer the NCR COBOL
source code to the machine from my Televideo Telecat with MicroPort's
V.2 Unix. That mean going to an NCR machine (pre System III) xfering
to the T'cat, and then the T'cat to Onyx. The only input to
the Onyx was keyboard or tape, and they were long out of business
at that time.
After last weeks experience with old hardware that should have been
shot long ago, I've vowed not to do that again, and I'll just refer
them to Jeff L.
--
bill@bilver.magicnet.netREMOVETHIS | bill@bilver.comREMOVETHIS
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