Andy, TS-DOS doesn't have the ability to load data into any bank except the one it is running it. The NEC has the same issue.
Kurt On Thu, Aug 10, 2023, at 2:21 PM, CopyP wrote: > Hi all, > > I have just received a Tandy 200 to go with my 100 and 102. It seems > functional, but leaves me with an odd question: > > I have one of Birt’s Backpack drives, which works perfectly with my 100 and > 102, using the TS-DOS loader included on the SD card, and referenced in the > Backpack manual. Unfortunately, I don’t have an option ROM with TS-DOS, so I > loose 6K or RAM. On the 100/102 that isn’t too bad, but on the 200, it leaves > insufficient RAM for the documents I am producing. > > So, I thought, why not load TS-DOS into one RAM bank, and the documents in > another? Except that I don’t see where TS-DOS can load a file, while it’s > running from (say) Bank #2 on the 200, and save the file in Bank #1. Or, save > a file from Bank #1 to the Backpack, while it’s running from Bank #2. > > Is this even possible, or do I need a TS-DOS option ROM? I do have a REX#, > but it doesn’t seem to be functional in the 200. I was hoping to get one of > Birt’s Dial-A-ROMS, but they don’t seem to be available at present. > > Any ideas? > > Thanks, > Andy
