2 essential questions about HP49


Hi all,

the first question I have and I hope to be answered is that why does the HP49 return the result "-1" for "-1 yx 2" ???

And the second question I hope to be answered by someone who already had contact with ASM.
There is an error occurring, when I try to compile a string file.Well, I tried to type in one of the shorter examples of Kalinowski and saved it as a String-File, then lateron after using ASM on this file the calculator returnes "Invalid File" ????. What to do ?? Maybe ya know !!


Q1: because the unary operator '-' has lower precedence than
y^x. So -1^2 = -(1^2) = -1
Q2: the string file has to end with: <LF>@
The '@' must be the first character in the last line, and no other character may follow it (not a blank, either).
There can be many other problems. Post the string if it still doesn't work.




the title explains itself. When I bought my 48SX I tried SYS RPL (successfuly) and got to the fact that I'd not particularly need the enhancements achieved. Now I'm a lot curious about ASM in the HP49G because the O.S. is upgradable, and (racional) changes can be introduced in the calculator this way. I just want to know the better starting-point (preferably e-docs; finding OR ordering something from outside Brazil is always a headache), because there is no ending-point for this sort of subjects...

Thank you very much.

Possibly Related Threads...
Thread Author Replies Views Last Post
  hp49 en hp50 qgrdne 1 398 02-04-2013, 08:05 AM
Last Post: Eduardo Duenez
  Symbolic limit of a function of 2 variables, HP49/50 Gilles Carpentier 0 333 08-26-2012, 10:28 AM
Last Post: Gilles Carpentier
  HP49 PocketGuide in German / Italian / Spanish / French / Portuguese Software49g 1 377 06-30-2012, 09:43 AM
Last Post: Luiz C. Vieira (Brazil)
  HP49 with 48series KB... NACHO 0 264 06-18-2009, 05:43 PM
Last Post: nacho
  Why is complex number support so essential to some of you? Mark Edmonds 16 1,495 06-07-2009, 01:06 PM
Last Post: John Cadick
  HP49+ - Backing Up Calculator State Les Wright 9 885 04-27-2007, 04:18 AM
Last Post: Les Wright
  HP49+ Memory--scratching my head Les Wright 10 984 06-03-2006, 03:52 AM
Last Post: James M. Prange (Michigan)
  Old 48g menus on hp49 Rui 11 1,039 01-24-2006, 03:03 PM
Last Post: Samuel Heddle
  hp49+ won't power up Tom Lianza 5 616 11-23-2005, 04:17 PM
Last Post: tom lianza
  Saxon Calculus and Hp49+ Stacey Bower (Oregon) 12 1,058 09-20-2005, 03:00 PM
Last Post: Ron Ross

Forum Jump: