DM42 and labels

[Thomas Okken]

I just ran the program in Free42 on my phone, and it behaves as expected, printing

Code:

00
10

What you're seeing in the display may not mean much because Free42 and the DM42 are a lot faster than the real HP-42S. If you want to verify the behavior of the program without relying on flag 21 being set, just add PSE instructions after both AVIEW instructions. And of course be aware that setting flag 21 in POFF mode causes AVIEW to stop program execution...