SteveF wrote: ↑
Mon Feb 15, 2021 10:52 pm
Am I missing something, or is there another error - the next line suggests the cycle time is 0.33us on a Master. Surely the cycle time is 0.5us on a Master, just like on a BBC B? 0.33us would apply to an external Acorn 6502 copro (whether connected to a B or Master).
When I first read that line I took it to mean an external 2P on either the Master or Model B. Looking at it again, it does seem to imply the Master without a 2P so I'll re-organise this part to make it clearer.
BigEd wrote: ↑
Tue Feb 16, 2021 7:09 am
I think I spotted a factual error too - but what to do? These are not OCR problems...
(The manual says that there are two custom chips in the Tube, one at each end, and that's not so, for Acorn second processors.)
Factual errors are welcome too. I would like the remastered books to be accurate and have already fixed loads of mistakes in this one.
My initial interpretation of "a pair of proprietary chips" was a Tube ULA on the parasite and the PBC on the host. I see what you mean though, the two quoted paragraphs could be read as a Tube ULA on each side.
I'm still undecided whether to change this or leave it as is. Anyone care to offer an alternative, less ambiguous, wording?
BigEd wrote: ↑
Tue Feb 16, 2021 10:20 am
However, if that's an objection, it's an objection to the original document, not to the excellent and helpful remastering of the document!
No worries, I didn't take it that way!
The whole book really is quite shoddy and feels like it was put together in a rush. It's not much more than a collection of sloppily copy+pasted text from other sources with little attention given to quality control.
TobyLobster wrote: ↑
Wed Feb 17, 2021 8:18 pm
One more... P.87: "4) USERV has been included in the MOS sub-section because it is used to pass the unknown OSWORDs &E0 to &FF the user." this should be "...*to* the user." I would imagine.
Agreed. I'll change this in the next release.
Finally, a big thanks to all the other commenters for your kind words.