ZX81 BASIC Programming Book

General Chit Chat about Sinclair Computers and their Clones
Lardo Boffin
Posts: 2160
Joined: Sat Nov 26, 2016 2:42 am

Re: ZX81 BASIC Programming Book

Post by Lardo Boffin »

And
676C950C-E620-4322-9913-0C4A7822370B.jpeg
AA1CFDB1-65C6-4046-BF82-DBF2EC045A29.jpeg
11485361-5ED4-46D3-AD1E-7029638283D2.jpeg
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
David G
Posts: 387
Joined: Thu Jul 17, 2014 7:58 am
Location: 21 North, 156 West

Re: ZX81 BASIC Programming Book

Post by David G »

Thank you. I had the smaller version, also spiral-bound but with a plastic spiral

I see what the problem is with Appendix A. Character 135 is showing the ZX80 character, not the ZX81 character. The folding Reference Card shows both
Attachments
comparison of Appendix A
comparison of Appendix A
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1024MAK
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Location: Looking forward to summer in Somerset, UK...

Re: ZX81 BASIC Programming Book

Post by 1024MAK »

Lardo Boffin wrote: Tue Aug 02, 2022 2:35 pm Thanks Mark.

Where did you see the printer’s information in the First Edition? I couldn't find it.
On the last page (page 212) at the bottom.
Page 212 of ZX81 manual (first edition)
Page 212 of ZX81 manual (first edition)
Mark
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp

:!: Standby alert :!:
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb :!:
Looking forward to summer later in the year.
Lardo Boffin
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Joined: Sat Nov 26, 2016 2:42 am

Re: ZX81 BASIC Programming Book

Post by Lardo Boffin »

Interesting!

None of my four have that printed on page 212.

4FB3014A-2D0A-4E4C-AFE5-A9C7D093BDB4.jpeg

I assume there must have been at least two print runs of this edition then.
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
User avatar
1024MAK
Posts: 5103
Joined: Mon Sep 26, 2011 10:56 am
Location: Looking forward to summer in Somerset, UK...

Re: ZX81 BASIC Programming Book

Post by 1024MAK »

Lardo Boffin wrote: Thu Aug 04, 2022 10:26 am I assume there must have been at least two print runs of this edition then.
By two different printing companies maybe 🤔

Mark
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp

:!: Standby alert :!:
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb :!:
Looking forward to summer later in the year.
Lardo Boffin
Posts: 2160
Joined: Sat Nov 26, 2016 2:42 am

Re: ZX81 BASIC Programming Book

Post by Lardo Boffin »

I just got another First Edition today and it has got the Leagrave Press info on page 212.

Either they didn’t put their name in to start with or it was two companies. Guess we will never know.

So I now have:

Spiral bound -
4 * First edition from 6 King’s Parade - no obvious mention of who printed them
1 * First Edition from 6 King’s Parade - printed at The Leagrave Press
1 * Second Edition 1981 from 6 King’s Parade - printed at The Leagrave Press
3 * Second Edition Reprinted 1982 from 6 King’s Parade - printed at The Leagrave Press

Perfect bound -
1 * Second Edition Reprinted 1982 (212 pages) from 25 Willis Road - printed at The Leagrave Press
3 * Second Edition Reprinted 1983 (160 pages) from 25 Willis Road - printed by Richard Clay Ltd
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
Moggy
Posts: 3231
Joined: Wed Jun 18, 2008 2:00 pm

Re: ZX81 BASIC Programming Book

Post by Moggy »

Leagrave press was dissolved on the 9th of this month.

During WW2 it was the production and packing facility of the S.O.E ( Special Operations Executive ) print works apparently.

https://suite.endole.co.uk/insight/comp ... imited-the


Richard Clay limited looks like a company with origins in the 1700's

https://www.royalacademy.org.uk/art-art ... ns-limited
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