|HP-25 fails to store programming steps|
Message #1 Posted by Alberto Fenini on 26 Jan 2009, 4:40 p.m.
first of all congratulations for the forum, it is very well done and very complete.
I've been browsing for a while, waiting for my recently ebay purchased HP-25 (S/N 1512A28495) which is arrived today.
I have to admit it, one thing is browsing for pics, articles or memos about this amazing machine but having a real one in your own hands it's all another story.
Forgive me for my english, I'll do my best but I can't promise miracles, it won't get much better than this in the short time.
Anyway, the machine is in very good conditions, the original batteries have been replaced with AA Alkaline, and the basic maths are performed ok.
However I can't manage to use registers.
No matter what numbers I store in a register, the RCL key only brings back a zero value.
The programming issue is quite similar, the HP-25 enters in the programming mode, but no matter what keys are pressed, no key codes are stored, and as a result of this no program can be executed.
All I get is a line like : XX 13 00
where XX gets incremented for any key pressed.
Just to be sure I was doing things properly, I have used the great HP-25 Java simulator and no need to say, it worked out.
Does anyone has ever experienced anytinhg like this ?
Thank you very much for reading, and thanks in advance for any hint !!
Greetings to everyone from Italy