Ok. Well if all the tu58 tapes have been imaged then this should not be a problem. I can just overwrite it as needed.
I think I have a few more somewhere around here from 30 years ago..... On May 18, 2022 9:47:18 PM GMT+02:00, Martin Bishop via cctalk <cctalk@classiccmp.org> wrote: >XXDP is based on DOS-11 file structures. > >Some documentary sources FoMT. > >TU58 examples of XXDP binaries, and much more, can be found at >https://www.ak6dn.com/PDP-11/TU58/ the .txt files contain file structure and >directory listings. > >http://bitsavers.trailing-edge.com/pdf/dec/dectape/tu58/EK-0TU58-UG-001_TU58_DECtape_II_Users_Guide_Oct78.pdf > is a fair description of TU58 technology > >https://github.com/rust11/xxdp/tree/main XXDP RevEng and restored sources > >http://www.bitsavers.org/pdf/dec/pdp11/dos-batch/ I believe documents the >DOS-11 file system underlying XXDP; e.g. it explains how dates are encoded. > >Martin > >-----Original Message----- >From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Lee Gleason >via cctalk >Sent: 18 May 2022 16:14 >To: Chris Zach <c...@alembic.crystel.com>; cctalk@classiccmp.org >Subject: Re: anyone ever connect a TU58 drive to a PDT-11/150 terminal port? > > Lessee...I know more about life on Mars than I do RT11, but I know from > trying it myself, while building some XXDP volumes, that a simple DIR > command can't read an XXDP volume. Maybe there's an equivalent of FLX (RSX) > or Exchange (VMS) on RT11? Either way, you can test your ability to read an > XXDP TU58 on the PDT by doing a DUMP/TERMINAL DD0: - if it reads, it will > dump the blocks out to your screen. It will be interesting to see if a real > TU58 works as well on a PDT as an emulator does. >-- >Lee K. Gleason N5ZMR >Control-G Consultants >lee.glea...@comcast.net > >On 5/18/2022 3:47 AM, Chris Zach wrote: >> Very nice to know! I am repairing my tu58 bit by bit and will try it >> out on my 11/150. Good to know about the serial limit, I'll jumper for >> 2400 baud to test. >> >> Question. The only tape I have for testing is an xxdp. Are they in >> rt11 format that I can test with a simple directory command? >> >> Chris >> >> On May 17, 2022 11:31:55 PM GMT+02:00, Lee Gleason via cctalk >> <cctalk@classiccmp.org> wrote: >> >> On 4/15/2022 2:48 PM, Lee Gleason wrote: >> >> I've been tinkering with a PDT-11/150 lately. It's a little >> inconvenient to work on, since it doesn't have a simple way to >> transfer files back and forth (KRTMIN doesn't work when >> transferring files to the box, just from the box, for some >> reason I haven't been able to puzzle out, and pasting text >> into a KED screen or a PIP command usually overflows my >> terminal emulator). It occurred to me that the first >> application terminal line on the 150 is at 176500,300, the >> same as the default for a TU58's DL11. It's a very DL11 like >> interface, register wise. I'm wondering, if I could hook up a >> TU58 emulator and use it to move data back and forth to the >> 150. Has anyone had occasion to try this? Any advice on how >> to get it to go would be appreciated, since I know very >> little about RT11. >> -- Lee K. Gleason N5ZMR Control-G Consultants >> lee.glea...@comcast.net >> >> >> OK, replying to my own post here, on the off chance that there are >> any other PDT-11 hobbyists out there. I gave this a try and it works pretty >> well. The DD driver on the PDT-11/150 will talk to a TU58 emulator on >> Terminal 1 just fine (presumably, it would talk to a real TU58 as well). It >> only works at 2400 baud, but, it's still pretty useful for moving software >> on and off the box. With the "big" TU58 patch to the DD driver, it's also >> possible to store lots of RT11 software or data (65000 or so blocks worth) >> on a virtual TU58 and load from there, rather than switching floppies. >> Seehttps://rsx11.blogspot.com/2022/05/pdt-11150-and-tu58.html for the long >> boring story about figuring this out. >> >> == >> Lee K. Gleason N5ZMR >> Control-G Consultants >> lee.glea...@comcast.net >> >> -- Sent from my Android device with K-9 Mail. Please excuse my brevity. -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
