truth table program and Bidmead articles

ZX80 / ZX81 hardware and software requested for either sale or swapping
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prolog
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Joined: Wed Oct 05, 2011 6:07 pm

truth table program and Bidmead articles

Post by prolog » Wed Oct 05, 2011 6:22 pm

Hello all, I am new here and am finding my way about!

ECM magazine, I think, (somewhere between summer 1981- early 1983) had a short ZX81 program for producing truth tables in tabular form - so you could input truth conditions and it would then draw tables with the results. I'd love to see that again.

Also Chris Bidmead of ECM had 2 consecutive articles on tachyons at about the same time. I can't imagine ever seeing again a magazine where you could copy out a program on one page and then turn over and read an article about tachyons. Love to read those again.

Never throw anything away.

Moggy
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Joined: Wed Jun 18, 2008 2:00 pm

Re: truth table program and Bidmead articles

Post by Moggy » Thu Oct 06, 2011 12:05 am

Seems He is still writing.

http://knol.google.com/k/chris-bidmead/ ... 828us329/1#

Welcome to the forum , by the way, Prolog.

You might want to try this site as well, our friends in Germany.

http://forum.tlienhard.com/phpBB3/viewforum.php?f=2

Google translate helps to get an understanding.

Regards

Moggy

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prolog
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Re: truth table program and Bidmead articles

Post by prolog » Thu Oct 06, 2011 1:42 pm

Thank you yet again Moggy! And for the welcome. I hadn't seen that site for Chris Bidmead, but he's obviously a man to know. Funny, he lists PC/M but I was sure the stuff I saw was in ECM - have to look again. I went on ebay and was very DEPRESSED to see these mags on starting bids of 9.95 each with 2.25 p&p; especially since I threw out loads of 80s mags at my last move. Blast.

I checked the German site - looks like I'm going to need a compiler!

cheers again

Prolog

Moggy
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Re: truth table program and Bidmead articles

Post by Moggy » Thu Oct 06, 2011 8:29 pm

Some interesting reading here, the magazines section especially..

ftp://ftp.worldofspectrum.org/pub/sinclair/

Regards
Moggy

dr beep
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Re: truth table program and Bidmead articles

Post by dr beep » Wed Oct 17, 2012 3:18 pm

Something like this?

I am thinking on making it larger
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prolog
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Re: truth table program and Bidmead articles

Post by prolog » Wed Oct 30, 2013 8:42 pm

Dear Dr Beep
Now I've found my password I can log in and say thank you! A year late but better late than never!

I've also tracked down the E&CMs with the original truth tables I saw in 1982 - so I'll compare with yours and post!
bw
Jeff

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