
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
SIM41 for DOS Download a free copy
(202.835 bytes) Version 3.8 build 2 updated 2000/11/10
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 for 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
HP41 Emulator for Windows
Version 0.21 Updated (2012/04/12)
SIM67
for Windows HP67
Emulator Version Beta 0.37b Updated (2012/04/17)

SIM65 HP65 Emulator for Windows,
version 0.19b updated (2012/04/17)

SIM25 HP25 Emulator for Windows,
version 0.19 (2012/05/07)

SIM59 TI59 Emulator for Windows,
version 0.12 Alpha (2011/11/08)
SIM502 Casio FX-502P Emulator for Windows,
version 0.25 Alpha (2011/10/27)
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)