It's a bug that Ken initially fixed. Here is what happens without the fix. With TS-DOS 4.0, you have a directory on your emulator with more than 48 files on it. The first 16 files appear on the screen. Go to the next screen with a Shift+Down. Second 16 files appear just file Go to the next screen with a Shift+Down. You don't get the proper screen of filenames.
There is a counter that has to be reset and Ken found where to do it. He applied the patch to TS-DOS for the 100 and 200. I added it to the NEC version. The RAM versions also got fixed along the way. I think it's a fix of 7 bytes if I remember correctly. Kurt On Tue, Jul 14, 2020, at 2:00 PM, John R. Hogerhuis wrote: > What is the shift-down fix? > > -- John. > > On Tue, Jul 14, 2020 at 11:41 AM Gary Weber <g...@web8201.com> wrote: >> For owners of a Booster Pak --- >> >> I couldn't find evidence of this fix being available anywhere so I >> implemented the TPDD protocol directory extensions "shift-down" fix myself. >> >> If you have a Booster Pak, you can now swap in an EPROM burned with this new >> image and you'll enjoy the same directory browsing fix that is present in >> TS-DOS 4.10 and all flavors of SARDOS. >> >> http://club100.org/memfiles/index.php?direction=&order=&directory=Gary%20Weber >> >> The file is "*BP1ROM_Fixed.bin*". >> >> -- >> Gary Weber >> g...@web8201.com
