HP 41C emulator and MyRPL language


I wrote my first HP 41 emulator for DOS operating system at years 1994-1995.
The emulator was published on Internet at 1995 .

I created "The hp41 emulator page" on www.geocities.com at year 1995.
Since 2009, geocities.com is off line, so , I translated the html pages here.

At year 2004 I began to write an HP41 emulator for Windows, updating the old DOS code.
Later I decided to write more emulators for the HP family of calculators,
beginning with the HP67.

You will find all these programs here.

Comments and questions welcome . Please, excuse errors in English usage.

You may help to the evolution of these emulators. If you find an error on
them, e-mail me. Thanks.

Alvaro Gerardo Suárez



All the software present in these pages could be tested with Oracle Virtualbox and a free image of windows 7 32 bit for virtualbox provided by Microsoft at http://www.modern.ie
You need a computer with windows 10 and at least 4 Gigas of RAM.
1) Download and Install VirtualBox.
https://www.virtualbox.org/
2) Download the windows 7 image.
Go to: https://developer.microsoft.com/en-us/microsoft-edge/tools/
Select: Virtual machines. Choose the machine and download it.
Unzip the file and rename the .ova file to .ovf file
For example, if you downloaded IE8.Win7.VirtualBox.zip, unzip and rename: IE8 - Win7.ova to IE8-Win7.ovf
3) Import the image to virtualbox.
Go to the virtual box menu and select: import appliance
4) Enter to the windows 7 image (also known as virtual machine), start it and navigate to this site
For example: navigate using IE8 provided in the virtual machine.
5) Download and install the runtime to the virtual machine, from this site
http://sim41.webcindario.com/runtime.htm
6) Download and Install the calculators or MyRPL on the win7 image.

SIM41 for DOS Download a free copy (202.835 bytes) Version 3.8 build 2 updated 2000/11/10

Dosbox 0.74 Site allows to run sim41 for DOS in Windows 8 (sim41 for DOS is a 16 bit application)

Implementation details

Keyboard map and allowed commands - (2332 bytes .zip file) updated 1998/02/10

Commands that can be executed with XEQ

Commands accepted in programming

Some basic programs -(2899 bytes .zip file) updated 1997/12/02

Algebraic behavior in SIM41

Test your ear

The eight queens problem

Moon landing simulator tested OK in SIM41

The game of NIM adapted from original code for the HP25 calculator.

Printing all alocated memory registers using the PRX command.

External file edition using xBase Languages

Batch procedures to save and recall memory, flags, stack and assigned keys in SIM41

Other HP41 and Emulator links

General information about HP calculators and more HP Emulators

Play with RPN logic using Java Script

Simple RPN calculator with standard buttons

RPN calculator in Java Script with memory management

Scientific RPN calculator with three memory registers

Scientific RPN calculator a variation of previous calculator

My personal interests

Spanish page

My picture

Currently I am updating often all these emulators. At september of 2010, I began to write an emulator for the Texas Instruments TI59.

SIM41W version 0.01 running in Windows 2000 Server. (800 by 600 pixels) View a Screenshot

SIM41W version 0.06, skin 3, running in a Laptop with a Wide Screen (1280 by 800 pixels) and XP Home View a Screenshot

Metaprogramming with sim41w A program could modify itself (2014/08/15)

My tiny calc 1.05 A little calculator featuring the MyRPL Version 1.0.5 Language (2018/06/22)

MyRPL Notes about the MyRPL Version 1.0 Language (2017/10/28)

More notes: Comparing MyRPL and RPL (2017/11/02)



My TinyCalc components Calculator objects

My rpl sets

My rpl add operator

MyRPL is open source distributed under GNU Public License version 3 View sources available since 2017/12/12

HP41 Emulator for Windows Extended Version 1.1 Updated (2017/10/18)

Tones for sim41 Provided by Martin Andres Verens (2013/05/16)

SIM67 for Windows version 0.41HP67 Emulator Updated (2014/02/03)

Anasec67 sent by Paul KopffProgram for HP67 Updated (2013/07/16)

SIM65 HP65 Emulator for Windows, version 0.20c updated (2013/08/09)

SIM25 HP25 Emulator for Windows, version 0.19b (2013/07/16)

SIM59 TI59 Emulator for Windows, version 0.17 (2015/01/27)

Skin manager for sim59 developed by Pierre Houbert_available at his site ti58c.ift.cx , Emulator, Other products.

SIM502 Casio FX-502P Emulator for Windows, version 0.26 (2012/11/01)

HP 25, HP 41, HP 65 and HP67 Emulators at my Desktop, view a screenshot

Easy41 HP 41 Compiler, version 1.0 Alpha (2005/06/07)

FOCALFREE utility for HP41 free grammar translation. Version 1.2

Translating programs to FOCALfrom your favorite language

Free FOCAL to V41 translation

Turing machine simulator version 0.3 alpha

Sphinx Big Calculator version 0.15 alpha (2006/09/17)

Factors for sim41 Factors are numbers you can multiply together to get another number (2014/06/25)

FAQS Frequently Asked Questions. UPDATED (2018/05/04)