I've got a problem, and am wondering if anyone has any advice as to what I
can do.
I run my own private mailserver on my OpenVMS 7.3-2 system. Only a few
people know how to get ahold of me, and it's basically used to communicate
with my family. Someone started sending out spam yesterday that appears to
be coming from my IP address and domain name based on the email headers, yet
I've verfied the messages aren't originating from my network.
As a result of this my VMS server has been thrashing, the B******* are using
a fake account name that is 14 characters long, so OpenVMS won't
automatically reject it, but instead bounces the bounces, then accepts the
bounce backs.
Last night I finally shut down SMTP on my VMS server, and am blocking all
incoming SMTP connections at my firewall. I've also alerted my ISP as to
the problem.
Is there anything I can do about this?
My one thought is to do an "emergency" upgrade to OpenVMS V8.3 as it will
reject email to invalid accounts that are 13+ characters in length, and then
turn SMTP back on. I've been meaning to do the upgrade, but haven't had
time yet.
Zane
I am currenly contemplating what kind of IO to put on my coming i8008
system : what is it that makes blinkenlights (i.e. leds and switches )
seem so attractive ?
It must be about the worst possible way to interact with a computer...
So why is it then that almost all early micros had them ?
a 7segment display with keyboard ( as in a H8) is clearly more usable,
and would have cost nothing more. Or were early eproms (for the monitor
program) that expensive ?
Jos
Every so often, a discussion of Tiny BASIC appears around here. I was curious about one of the very first versions of Tiny BASIC, the 8080 implementation done by Whipple and Arnold, as documented in the Vol. 1 No. 1 (Jan 1976) issue of Dr. Dobb's Journal (of Tiny BASIC Calisthenics and Orthodontia)
This issue contains an octal listing of a Tiny BASIC interpreter for the 8080, and I couldn't find this version available for download anywhere. So... I typed it in, and it works!
I documented my work, which is available at
http://oss.readytalk.com/tb/tinybasic.tar.gz
(Note - this location is temporary - I need a home for this if anyone is interested)
Included are the text file for the octal listing, a binary which can be loaded into memory, an attempt to extract the IL from the binary, and some instructions on bringing up Tiny BASIC. I was able to run some simple programs with a Z80 simulator that I've been running, and it appears to work correctly.
I found the PDF of the listing in the ACM digital library:
http://doi.acm.org/10.1145/987491.987494
Typing in octal listings is error-prone enough, and typing them in from bad PDF scans of bad photocopies is even trickier. I have corrected many errors, but I'm sure there are more. If any kind soul would be willing to proofread / correct the listing, it would be **GREATLY** appreciated.
I hope this is of interest to people. I'm very interested in other versions of Tiny BASIC out there, if someone has ever typed this listing before, etc. I'm familiar with Tom Pittman's work, but other resources would be greatly appreciated.
-Eric
____________________________________________________________________________________
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with the Yahoo! Search movie showtime shortcut.
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>
>Subject: Re: Tiny BASIC Extended available
> From: cctech at porky.vax-11.org
> Date: Fri, 23 Mar 2007 08:32:28 -0600 (MDT)
> To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org>
>
>
>Would enhanced basic work?
>
>http://members.lycos.co.uk/leeedavison/6502/ehbasic/index.html
>
>Clint
>
>On Thu, 22 Mar 2007, Jay West wrote:
>
>> I've been hunting for a Tiny BASIC interpreter for the 6502, written in 6502
>> assembler with source. I haven't been able to find such a thing. Anyone have
>> one floating around?
>>
>> Jay
>>
>>
I have Tom Pitmans Tinybasic for 6502 is that what you want? If so email me
direct for a copy.
Allison
>From Tom Watson -
>Sorry wrong bits!! Wrong code set!
>11101000 11001001 11000111 11001000 11100011 01000000 11010110 11010101
>01011010
>
>4900796 (Somebody will understand this reference)
Someone is trying to boot Fortran off of the Disk on an IBM 1620 me thinks...
Steve Wilson
jd wrote:
>HP's number for this OEM board--by MSC/Xebec is 88134-69910, 09135-69515,
>and/or 09135-69501. I have no idea which number belongs to mine.
FYI: These are all used on 5Mb drives with two sets of firmware classified as follows:
88134-69910 'L' Code - HP250 Model 20
09135-69515 'D' Code - 4-Volume 5-Mb (emulates HP 9895A drives - I use this for my 9845B and HP-85 & 87 systems)
09135-69501 'L' Code - single volume 5-Mb.
Martin
Web: http://www.biblewitness.org/technical
> I'm thinking that I would like to put together a very small
> Z80-based SBC just for this interpreter. Do you know if this
> code is ROMable?
I'm reasonably sure it isn't ROMable. The good news is that the
user entered program is stored immediately above the end of the
listing at 1800H. Unfortunately, the input buffer appears to be
stored somewhere early within the address space of the listing
(1049H, I think), and although I'm still disassembling the code,
I half suspect that there is some self-modifying code in there.
At first, I even thought there was some self-modifying code in
the intermediate language, but I think I was misinterpreting
what was going on. In any case, there are definitely several
writes within the 1000H - 17FFH space of the code, but hopefully
I'll know soon how extensively one would have to modify this to
make it ROMable.
-Eric
____________________________________________________________________________________
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> From: John S
> Subject: Sol terminal in Practical Electronics July 1976
>
> for Practical Electronics July 1976. This features a 8080A computer and
> refers to the SOL terminal. Is there any relation between this computer
> and
> the SOL 20 computer?
>
Here is how Stan Veit remembers it.
http://www.pc-history.org/sol.htm
The stripped-down terminal version Lee (Felsenstein) designed for the
magazine article had a personality module, but only had limited RAM memory.
It was still more intelligent than most "glass teletypes," so it was called
The SOL Intelligent Terminal.
The full version was to come in two styles. The less expensive one had a
simple keyboard and only one slot for expansion. It was called The SOL-10,
and very few were ever built. The second model was a complete computer with
an excellent keyboard and a card cage with five slots. It was called The
SOL-20, and provided enough memory for general computer applications.
When the prototype was complete, the Processor Technology crew headed for
New York City to demonstrate it to Les Solomon. The machine had been named
The SOL, in his honor.
When Bob Marsh revealed the name to me, I called Les and joked, "They're
naming the new machine after you - The LES Intelligent Terminal!"
Michael Holley
www.swtpc.com/mholley
> I wonder which machine would take the prize for the
> most done with so little?
In the 60's, probably the LINC
1 or 2k 12 bit words, LINCtape, typewriter, CRT, and Lab I/O
http://www.mit.edu:8001/people/ijs/epl/LINC.html
I'm happy to announce that VCF/Midwest 3 is being sponsored this year by
Purdue University's Research Computing group, the Rosen Center for
Advanced Computing. The event will be a *2 day* event this year, on
July 14th and 15th.
Sellam is working on getting the web site set up for this year's event,
and it should be up shortly, at http://www.vintage.org
If you are interested in speaking at the event, exhibiting, or just have
a question, please contact me at vcfmw at computer-refuge.org.
Thanks,
Pat
--
Purdue University Research Computing --- http://www.rcac.purdue.edu/
The Computer Refuge --- http://computer-refuge.org
