HP50 How to turn on or off some indicators ?

[DavidM]

I no longer have a source reference for this, but I'm fairly sure that it was pieced together from a combination of snooping around in Suprom49.a (included with Debug4x) along with some judicious searching of the comp.sys.hp48 newsgroup. The tidbit about setting the PASTDUE flag was definitely a clue from a post to that newsgroup, probably this one from Jonathan Busby.

I'll confess that I usually search that newsgroup first when looking for programming hints related to the 48-50 systems. There's a wealth of knowledge there, provided you've got the time to weed through it.