cantrell.org.uk - reuse of content

[keith56]

I wonder if anyone can help me, I'm writing some Z80 tutorials, and I want to publicly (freely) distribute the 'cheat-sheet' I use for my assembly work.

A large part of this sheet is a condensed version of the Z80 assembly list found on
http://www.cantrell.org.uk/david/tech/cpc/cpc-firmware/
and I'm would like to gain permission to redistribute my derivative of this page.

I found an email address for David, but I've not heard any reply, and I'm a bit stuck right now, as I don't want to proceed with the tutorials without the cheat-sheet I relied on when I learned ASM.

Does anyone have any idea of a contact method for David Cantrell?

[ComSoft6128]

Looks like he was a member of The Register in 2015:


https://forums.theregister.co.uk/user/929/


You could also check to see if he has a FaceBook or Twitter account.


Cheers,


Peter

[Gryzor]

Ah, but wait, that's not David's material; he only did the digital version. So I guess that with a nice attribution link and original credits you can use it indeed...

[CPCOxygen]

That's correct Gryzor. I then converted the HTML version to PDF with David's permission, that's the version that is on the site now   

[keith56]

I received an email from David basically saying the same as Gryzor did ... I will update my website - adding the original author details.

it sounds like anyone who has any kind of 'claim' on the original source is not concerned about it's redistribution - which is good, as I just wanted to share the condensed version I rely on most days when I do Z80 development.

of course, anyone who wants to redistribute or modify my cheatsheet or tutorial is welcome.

For anyone who's not seen it, The tutorial, and cheatsheet are available here:
http://www.chibiakumas.com/z80/
I plan to do lesson 2 this weekend... and I'll try to do a lesson each week if I can make time