Detecting presence of SD-card on HP-50g

[DavidM]

(07-17-2021 10:36 PM)BINUBALL Wrote:  It's very interesting. I've tested.
...
1) run with card inserted : "395A8000"
2) run with no card inserted : "FFFFFF38"

Those look like normal results. Your result for "no card inserted" is the exact same thing that I see when I have no card inserted.

With these results, I see no reason that you would have to change PushF/TLoop to PushT/FLoop for the original program to work properly. It's a mystery.