Welcome to the my
Emu41 Page !
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Note: in all this document, HP41C or 41C means any of
the 41 serie: HP-41C, HP-41CV or HP-41CX.
Emu41 is a software
emulator of the HP41C machine and HP-IL system.
Main features:
· FREEWARE:
free for non commercial usage, (a short mail with your opinion to the author
would be appreciated),
· run under DOS
(or in a Command box under Windows),
· emulation of
ROM and XMEM modules, compatible with standard ROM image format (.rom, .41r),
· support for
advanced modules: Hepax, MLDL, W&W 64K RAMBOX II (or HP-41CY), 128K Eramco
RSU,
· emulation at
machine code level: can execute synthetic programs and micro-code,
· emulation of the HP-IL
loop and 8 HP-IL devices
(one video display, three mass storage units, one printer
port,one DOS interface, two serial COM),
· support of
the PC serial COM ports, even through USB bridge,
· control from
Emu41 of external HP-IL loop, and/or control of the internal devices by an
external HP41C using the HP82973 HPIL ISA board,
· no more
registered versions: all features included in the free version,
· HP 95/100/200LX and HP
Portable Plus versions,
· New:
improved experimental support of the PIL-Box,
· New:
Full source code released.
Emu41
documentation (pdf file)
Emu41
2.50 Freeware Package without ROM images final
version, see Whats new? !
Emu41
2.50 Source Files released under GNU Public
Licence
Emu41
2.47 Freeware Package without
ROM images backup version
Emu41
2.40 Freeware Package without ROM images backup
version
Emu41 uses ROM images of HP41C ROM and modules (X-F,
Time, ...). You can find ROM images on the great Warren Furlow's HP-41 Website
To help you, you will find here the necessary images of the HP-41CX machine, as well as the HP82143, HP-IL,
Advantage and X-I/O modules, ready for use with Emu41. If it happens that the
Hewlett-Packard company should be opposed to this, I would immediately remove
these files from my site. Don't ask me to provide other HP or third party ROM
images.
Emu41 now supports the PC serial COM ports, in order
to allow downloading program files from Emu41 to an external HP41 through the
HP82164 HPIL/RS232 interface. This document gives some basic information: setup
for PC / HP81264 link (pdf).
Registred version
I don't provide registered Emu41 versions anymore, the
free version now includes all features, including the management of real
external devices through the HP82973A HP-IL board for PC or the equivalent
board rebuilt by Christoph Klug. It also allows an external HP41C to control
and use the internal devices.
There are two usages of the external HP-IL interface:
· control of
external HP-IL devices from Emu41
· control of
the internal Emu41 devices from an external HP-IL controller (41C, 71B, 75C/D,
...)
Please note that I don't provide the HP-IL/PC interface board.
My email: 
Christoph Klug Corner
I provide here some
resources from Christoph Klug.
HP 95/100/200LX and HP Portable Plus versions
I now made public the HP 95/100/200LX and HP Portable
Plus versions. There are provided as freeware, without any support from my
side.
HP95LX HP100/200LX
Emu41lx for HP 95/100/200LX machines (without ROM images)
Emu41p for HP Portable Plus on my HP Portable
Plus Resource page.
Some links
General links about the HP-41C and other old HP calc.
· The Museum of HP Calculators THE reference site!
· HP-Collection Matthias fameous HP collection.
· Old HP and TI Calculators (Gene Wright)
· HP Calculators (Rick Furr)
· LIF disc image files for the HP41, 71 and 75.
· Le site du
HP41CX (french)
Emulators and simulators of HP calculators
· HP Calculator Emulators Emulators and simulators
· RPN/RPL
Implementations (Craig Finseth)
· The HP-41 Archive Website Warren Furlow's great site with the V41 emulator, as well as many
resources
· NutEm , a
Coconut (HP41) emulator in ... Fortran, also interesting infos
· HrastProg's page with great emulators (41, 42) for the HP48S/G and HP49G
· Christoph Giesselink's page the famous Emu48, Emu42 and Emu28 emulators
· Eric Smith's page HP Calculator page,
and impressive Nonpareil micro-code simulator
· Free42 A high quality (and free) simulation of the HP-42S
Hardware emulations.
Recent hardware developments on HP-41C.
· Diego Diaz's Clonix page HP-41C modules
· Meindert's MLDL2000 page MLDL system with today's technology.
· Systemyde page NEWT microprocessor and 41CL Status Page.
J-F Garnier, 2009