> On Jun 2, 2016, at 09:20 , John R. Hogerhuis <[email protected]> wrote: > No. But I'll remind folks there are two different sector access protocols for > the 1 and 2. The sector access protocol for 1 is documented for 2 is not. But > the best clue to 2 is the sector access done by BACKUP.
It shouldn't be that hard to extend tpddtool to be able to at least image and re-create the original TPDD 1 utilities disk, then. The TPDD 2 disk may be a lot harder, depending on how hard it is to reverse-engineer its sector protocol, but snooping TPDD 2 communications while making a copy on original hardware (as has been discussed recently in another thread) can probably help. > The old disk utilities are not very good. If someone were to spend time on > something I'd recommend someone write an injector program for tsdos RAM > version if one doesn't already exist. Big ram hit in using he ram version > though. I've been toying with the idea of making my own spin of a NADSbox-like emulator, since I gather that the NADSbox is currently out of stock and Ken doesn't expect to make another production run or follow-on product in the near future because of very understandable reasons. One feature I would want to include is a TS-DOS injector, to allow users without one of the various option ROM gadgets to bootstrap TS-DOS from it much like one can bootstrap FLOPPY.CO from an original TPDD with its utility diskette. A command-line injector utility for tethered TPDD emulation could easily spin off from that effort, if I ever actually do it. I agree that a ROM based TS-DOS method is preferable, but a RAM injector could still be a good option for anybody who can't use a ROM for whatever reason, such as fluctuations of REX availability. -- Mark J. Blair, NF6X <[email protected]> http://www.nf6x.net/
