71B: DISP, KEY$, and keyboard buffer

[Dave Britten]

(04-23-2021 03:57 PM)Dave Frederickson Wrote:  

(04-22-2021 12:39 PM)Dave Britten Wrote:  Adding line 35 to empty the keyboard buffer prevents this from happening, but is there a more elegant way to handle this?

Only slightly more elegant, replace KEY$ with KEYWAIT$.
http://holyjoe.net/HP71/lexlist.htm

But that would add another pause on top of DISP pausing due to DELAY 8,8. You could set DELAY 0,0 instead to have KEYWAIT$ handle the pause instead of DISP, but then you can't scroll long outputs horizontally.