Thank you Josh & Brian for persisting in preserving this piece of history, particularly for this book which not only cannot be purchased but didn't even show up as ever having existed! I totally respect a person's legal right to, for a limited time, prevent copying of their creative works. I also think it is fair to measure that "limited time" by the age of the Model T's which, in computer-years, are reckoned as eons old.
John, do you have Mo's widow's contact information? If she is still around, I would like to send her something for the digital copy I'm reading. Not just cash, but maybe a note that her husband's legacy is still alive and his genius remembered. I just found an advertisement in Portable 100 for his book and was impressed that in 1989 he also offered an assembler, a BASIC compiler, and a C compiler along with EPROM burners so you could create your own Option ROMs. He must have been very prolific! —b9 P.S. The Secrets of ROM book ends on a bit of a cliff-hanger, where it tells you the procedure one might use to figure out the Tandy 200 bank selection (disassembling the ROM), but it doesn't actually give the answers. It wants an epilogue. I hope the folks who hold the latest knowledge in their heads currently will be able to write it down in a consolidated form so it, too, can be passed down in the lore. On Sat, Jan 31, 2026 at 7:02 AM Josh Malone <[email protected]> wrote: > Yes - it was taken down for copyright. A long time ago I assisted a member > of the community to get a ton of scans up onto archive.org. In doing so, > I missed that the book was (for some definition) still available, and it > was taken down by the rights holder. I guess Brian's upload hasn't been > struck down yet. > > -Josh > > On Fri, Jan 30, 2026 at 8:46 PM John R. Hogerhuis <[email protected]> > wrote: > >> >> >> On Fri, Jan 30, 2026 at 5:11 PM B 9 <[email protected]> wrote: >> >>> Thanks, Stephen, your bank switching code worked perfectly to access the >>> MULTIPLAN. Once I add the PC8300's ROM banking scheme, my code will be able >>> to do a proper checksum of any Model T. (It shouldn't be too hard since >>> NEC's technical reference manual covers bank selection.) >>> >>> Does anyone have any advice on the best place to place assembly language >>> programs with ORG so they can run on any Model T? I've been using 60000 >>> since it seems to work on even the 8K RAM machines, at least according to >>> Virtual T, although I admit I don't know how. Does an 8K Model 100 put its >>> memory at the highest addresses and have a hole in the middle? >>> >>> Side note on researching ancient tech documentation: I tried looking for >>> that "Secrets of ROM Revealed" book and Google completely failed me in a >>> way I haven't seen before. Even when I added "archive.org" to the >>> search terms and put "ROM" in quotes, it just gave me a link to people >>> searching for the book which led to a page on archive.org saying "This >>> item was removed". I tried Google Books and Hathi Trust and neither had >>> ever heard of it. I even tried a shadow library (Anna's Archive) and came >>> up with nothing. Just as I was beginning to think "the ROM" must have some >>> very deep secrets indeed to have buried this revealing exposé so >>> completely, I found the book! If you search archive.org directly >>> instead of relying on Google, it turns up. Here it is: >>> https://archive.org/details/secrets-of-rom-revealed, uploaded by our >>> own Brian K. White. It's interesting that a reference book could nearly >>> vanish like that simply by not being properly indexed. Thank goodness for >>> archive.org! >>> >>> —b9 >>> >>> >> I can only speculate it may be because the copyright holder was defending >> their copyright. >> >> I came to the Model T community in 2004 but I was able to buy my copy >> from Mo's widow. That's not to say it's still available for sale, I do not >> know. >> >> -- John. >> >>>
