Programming issue HP41CX

[Dieter]

(03-05-2018 07:42 PM)jhaig99 Wrote:  Question? I also have the Android GO41CX version on my Samsung phone. Since I cannot attach a printer, will the AVIEW and PRBUF functions be active in the program? It is my understanding a printer needs to be attached when entering the program manually. Am I wasting my time trying to enter the program on my Android?

In general, you cannot enter any commands of a peripherical device unless it is attached to the calculator. So you can't enter a PRBUF without the printer, or a RDTAX without the card reader.

If you have a program that already includes such commands, e.g. because it has been recorded on magnetic cards before while the printer was attached, these will be shown as XROM commands when the printer is no longer present. When the program comes across such a command it will throw a NONEXISTENT error.

The V13 program checks if a printer is present and will not execute print commands if no printer is attached. So it can be used without a printer. But you will not be able to enter the print command manually.

BTW, if you set the printer switch to MAN instead of NORM the printout will not duplicate every entry or keystroke, as shown in the attached PDF, and you will only see the lines that are printed by the program.

Dieter

Edit: removed a "not" and a typo as shown in the quote in Garth Wilson's reply. #-)