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Is there a free RPN stack emulator for writing 35s programs
Message #1 Posted by Chris C on 5 Nov 2012, 9:17 p.m.

Does anyone know of a free RPN stack emulator for the HP 35s? I'd love to write some more programs for myself, but it's so time consuming. It would be great if I could see all the values in the stack and in memory locations at all times, see code changes and their results instantly, and have keystrokes recorded automatically so I didn't have to stop and write, or erase and rewrite, them. Am I dreaming?

Edited: 5 Nov 2012, 9:26 p.m.

      
Re: Is there a free RPN stack emulator for writing 35s programs
Message #2 Posted by Mike (Stgt) on 6 Nov 2012, 5:26 a.m.,
in response to message #1 by Chris C

Short answer: yes, long answer: yes, there is. Well, at least, there once was such a thing, showing the stack and some registers. It was programmable using commands like the HP41 and was a nice toy to watch computing, moving X to LastX, droping the stack, etc.

It must be somewhere on my elder disks, I will look for it.

Ciao.....Mike

            
Re: Is there a free RPN stack emulator for writing 35s programs
Message #3 Posted by Mike (Stgt) on 6 Nov 2012, 5:44 p.m.,
in response to message #2 by Mike (Stgt)

RPNdemo from John Kennedy is an emulator in an other sense as all others here. From the manual: RPNDEMO is NOT intended to be an HP-41 simulator, but where possible the instruction set matches that of the HP-41 exactly. With few exceptions RPNDEMO includes most of the programming capabilities of the HP-41. This DOS program shows an animated view of the stack movements during operation. So it may help you to explain RPN to a novice or for testing stack usage for a routine fragment. To see the animation on fast PCs you need to call it from a slow-down.BAT:

TP7P5FIX>nul
SLOW -f1 50000 -f2 30000>nul
RPNDEMO.EXE

Alas the links to TP7P5FIX (http://www.brain.uni-freiburg.de/~klaus/pascal/runerr200/download.html) and SLOW (http://www.geocities.com/kulhain/slow300.zip) are broken, hope you find new ones. The first is a 'Fix for "Runtime Error 200" bug of Borland Pascal 7 on fast PCs' and the second is just a slow-down tool for old DOS programs if you like to watch the animation.

Ciao.....Mike

                  
Re: Is there a free RPN stack emulator for writing 35s programs
Message #4 Posted by Chris C on 17 Nov 2012, 9:54 p.m.,
in response to message #3 by Mike (Stgt)

Thanks a lot, Mike. I appreciate it!

                        
Re: Is there a free RPN stack emulator for writing 35s programs
Message #5 Posted by Mike (Stgt) on 19 Nov 2012, 5:16 a.m.,
in response to message #4 by Chris C

Glad you like it. Could you please tell me where you found the necessary fix and slowdown routine?

Ciao.....Mike

                              
Re: Is there a free RPN stack emulator for writing 35s programs
Message #6 Posted by Chris C on 19 Nov 2012, 11:58 a.m.,
in response to message #5 by Mike (Stgt)

Well... I was actually thanking you for your reply and the info you shared. I'm sorry to say that I didn't actually try it. I don't know a whole lot about those kinds of things, so I was hoping for more of a ready-to-go emulator.

                                    
Re: Is there a free RPN stack emulator for writing 35s programs
Message #7 Posted by Mike (Stgt) on 20 Nov 2012, 8:01 a.m.,
in response to message #6 by Chris C

Well, I did not read your question carefully:

Quote:
Does anyone know of a free RPN stack emulator for the HP 35s?
I know only emulators of RPN calculators for DOS, Windows, Unix, iOS, ... - :)

Ciao.....Mike

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