RPN on HP39gs and HP40gs

[acapde]

(11-09-2017 07:20 AM)Csaba Tizedes Wrote:  Hi, this is really interesting. My 39gs arrived just now from China in perfect condition below 15 bucks with shipping. I will try your Aplet.

(11-08-2017 10:04 PM)acapde Wrote:  I wrote an "RPN" aplet in SysRPL.

I guess you learned this from something docs, please share it - at least the titles and authors.

One improvement if this is not implemented yet: white background functions: if you press SHIFT (to do inverse) the label automatically change to inverse function. In this case the user can see the right function.

Thanks,
Csaba

Hi Csaba,

I read several docs and books that I found, the ones that come to mind right now are: "An Introduction to HP 48 System RPL and Assembly Language Programming" by James Donnelly, "Sys-RPL lessons" a tutorial by Michaël De Coninck and Colin Croft, "Programming in System RPL" by Eduardo M Kalinowski and Carsten Dominik, etc., etc.
There is much more information about the HP48/49 and there are a lot of similarities with the HP39/40gs, however, when you hit "one of the differences" then a lot of trial-n-error is required. I wish there was more/better documentation specifically for the 39/40.

The "interactive menu" is not implemented yet, that was my first idea but I got lazy I guess, I'll try to do it next, it shouldn't be too difficult.

Regards.

Andres