HP 19C versus HP 95C

[Dieter]

(04-23-2018 12:19 AM)rprosperi Wrote:  I always presumed, perhaps without much thought, that the logic for this was to use the volatile registers as 'workspace' for program variables, and thus typically populated when the program is run (so volatile is OK), while the Continuous registers should be used for storing constants one needs at hand

At the first look this seems to make some sense. But then I realized that only the first 16 continuous registers were directly accessible, while the upper 14 volatile registers required indirect addressing. So all intermediate data that a program would put there would first require storing an address into R0, then save the value with STO (i).

I think such a procedure does not make much sense. ;-)

Dieter