On Tue, Aug 30, 2016 at 10:41 AM, Jason L Tibbitts III <tibbs@math.uh.edu> wrote:

>>>>> "BR" == Ben Rosser <rosser.bjr@gmail.com> writes:

BR> However, as best as I can tell, this copyright statement does not
BR> explicitly grant the right to redistribute this file.

It doesn't give permission to modify, either, or (of course) to
redistribute modified copies.

There may be other grants of permission outside of that header which
might grant such permissions. Is there a full statement of license
anywhere? Are there other statements from TI floating about the web
which say that the file can be modified and redistributed?

It might be possible to simply obtain a statement of these permissions
from TI.

- J<

The file is (or, rather, was) distributed as a "related download" alongside the TI-83+ SDK. We (that is, the calculator hacking community) did some digging and found the full license terms on a cached version of the download page for the SDK, but they are extremely restrictive: see https://github.com/alberthdev/spasm-ng/issues/37#issuecomment-243555962. (Note that some related discussion is going on in that ticket).

It isn't entirely clear, though, if this license just applies to the SDK or if it also applies to the include file and all the other "related downloads" on the SDK page.

If there are any other statements from TI on this issue, I'm not aware of them, unfortunately.

We could attempt to contact TI, I suppose. There are people in the calculator hacking community who have a reasonably good relationship with people who work for their calculator division.

Ben Rosser