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Extended Memory on the 41CX
08-30-2014, 10:41 PM (This post was last modified: 08-30-2014 10:47 PM by RMollov.)
Post: #12
RE: Extended Memory on the 41CX
(08-30-2014 07:11 PM)EdFab Wrote:  When I tried to run the COMP program, right after pressing the ALPHA key at the end, the display showed 'DATA IN?' and also showed that the calculator was in USER and ALPHA mode. Was this normal? I would expect the program to need data to work on, so the 'DATA IN?' seems normal. I'm wondering why the calculator stayed in ALPHA mode, and

This is exactly how the program works. It turns the HP41 in USER mode, turns ALPHA on expecting answer to the prompt - Y for Yes or anything else for No. After R/S it will continue depending on your input. COMP is not exactly a subroutine but a program on its own.
*YN is one - it was running when the above happen. In case you hit Y R/S it would set flag10 and clear it otherwise.
It's all in the beautiful manual - with examples and references. You'd find there the meaning of 'DATA IN?' prompt in this case :-)

HTH
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Messages In This Thread
Extended Memory on the 41CX - EdFab - 08-29-2014, 05:27 AM
RE: Extended Memory on the 41CX - EdFab - 08-29-2014, 06:33 AM
RE: Extended Memory on the 41CX - EdFab - 08-30-2014, 12:44 AM
RE: Extended Memory on the 41CX - d b - 08-30-2014, 03:02 AM
RE: Extended Memory on the 41CX - EdFab - 08-30-2014, 07:33 AM
RE: Extended Memory on the 41CX - EdFab - 08-30-2014, 07:11 PM
RE: Extended Memory on the 41CX - RMollov - 08-30-2014 10:41 PM
RE: Extended Memory on the 41CX - EdFab - 08-31-2014, 05:42 AM



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