On Sat, Feb 25, 2017 at 5:19 PM, Brian White <[email protected]> wrote:
> For that matter...why would a PDD or pdd server even allow for 64k? How > could a 100 make any use of a 64k file when a 100 only has less than 30k > (in any given bank) available in total, ever, under any circumstance. > > Database routines that do direct access entirely on-disk only? > > Well I looked it up, I can't find anything saying XMODEM file sizes are limited. As to TPDD, no I don't think that it is limited. It's been a while, but IIRC there's a way to encode 32-bit file sizes. The model 100 is limited on what you can inload, but imagine just opening a file, and you keep appending to it. It could get bigger than 64k like that. Same for reading a file. There's no SEEK in the TPDD protocol so I don't think the file based protocol would be good for databases. The sector protocol would be OK. For the file based protocol emulators we added a SEEK extension. -- John.
