The faded user base rejoiced and a renaissance dawned for the 41. [ON]+[RCL] +1h set the clock +1h: daylight saving and changing timezones. Unboxing a Swiss Micros DM42. DM42 runs Free42, which uses the Intel Decimal Floating-Point Math Library; it uses IEEE 754-2008 quadruple precision decimal floating-point, which consumes 16 bytes per number, and gives 34 decimal digits of precision, with exponents ranging from -6143 … Since the DM42 consumes memory at roughly twice the rate of the 42S, but has about twice as much RAM, it works out to being roughly equivalent. Dear SwissMicros customers, Thank you for your support in regards to the DM42 model’s GPL compliance. There are two variants of the DM41; the DM41L is in “credit card” format, which is the one I bought, and the other in the HP Voyager format. Edits 2017-06-24: Explained missing lines, removed registers not in the HP Nut CPU (I was conflating Nut and Saturn). At about one third of the price I paid for my HP-41CX back then, I got a DM41X now. And because of its versatility, easy of programming and great keyboard, the HP-41 lived on among enthusiasts. Programs and Manuals 8. Make sure you have enough memory for the combined programs. Copy the resulting memory dump and load it into the calculator as usual with the ‘l’ command. I haven’t tried this, though. The company has done a very good job at putting it all together - both hardware and software. In this web page, you can paste a well-formatted HP41 FOCAL program listing (no line numbers, though) in the right hand window, and press “encode”, and get a RAM dump you can transfer to the calculator. I'm really happy with the very well build swissmicros DM42 calculator: ... We are also launching DM41X[2], about 100 units have been sent out for beta testing and should be in production later this year. I’ve played with others, and i41CX is what I run on all my iOS devices. Second, here’s how to use the USB port to capture RAM dumps. The keyboard no longer miss any keystrokes, it clicks firmly and is a real joy to use. I won’t say much about the HP-41 series of devices, but instead provide links to hpmuseum.org and hp41.org. Technical. I have not confirmed this, but it seems that some of the alpha keys are mapped differently, too, or else I have forgotten the mappings for the special alpha characters. My only complaint, which is my fault, is that the smaller format is almost too small for my big fingers to use. SwissMicros DM15L Scientific Calculator 4. [ON]+[STO] -1h set the clock -1h: daylight saving and changing timezones In May 2017, SwissMicros released pre-production samples of an RPN calculator closely resembling the HP-42S, the DM42. Simply plug the DM41X with a USB-Micro B port, then on the calculator press [shift], [USR] (SETUP), 1 for File, 5 for Activate USB Disk. While the supplied images are neat, I decided to delete them all and leave only one I made myself - with my name and contact information in case I misplace it and a finder decides to return it. 35s - better injection moulding, but DM42 has better key feel. We have been actively working to split our firmware into “System” and “Program”. From here, you can enter ‘?’ to get help. By Geir Isene (2021). SwissMicros DM42 Scientific Calculator Long time ago (1987?) [ON]+[A] time and date Because the calculator is actually an emulator running the original microcode, synthetic programming is supported. At the moment the DM41X is in beta release. There is the contents of individual directories accessible separately or the whole contents of FAT disk can be downloaded as single zip file DM41X.zip. There are several directories with special names (and purpose) on the FAT disk: /BACKUP I don’t know a lot about the DM41 memory format, even after looking at some posts on both the Swiss Micros and the hpmusem.org forums (the latter is especially recommended). ASIN B01DYUMR4E … The DM42 functions are well documented, as it is easy to find the HP-42S user guides here and here and the Free42 … [ON]+[8] change speed toggle between 12MHz and 48MHz For me this is a big drawback as I use my calculator to store data that I need to transfer to my PC (like registered billable hours, observation lists for my telescope, etc.). [ON]+[E] show information firmware version & battery voltage But no keyboard overlays - yet. could be always downloaded from the SwissMicros DM41X FAT files page. If you are looking for the ultimate calculator - look no further. If for some reason you set up an illegal module configuration, there is a much easier way to reset the calculator than was often the case with the original 41. I haven't had the DM41X long enough to know if they've improved the paint formulation or process over the years. I think because of my upbringing and training, there is something about the cognitive process of using a physical calculator — much as there is in writing with pen and paper instead of typing, a subject much discussed elsewhere. Minor typo, link fixes. Being very knit-picky it is still annoying, but I hope me using it more will bring the failure rate further down. At this time I am only waiting for a way to programatically send and receive data from/to the unit. You name it, the 41’s got it. But I had heard good things, and also wanted to support the effort overall — both by encouraging the good engineering of low-volume products for enthusiasts, and in the hopes that by supporting Michael Steinmann and his company that we’ll see other interesting things (the work on the DM42 is an excellent example of this). Because the physical layout is landscape instead of portrait, the keys are laid out differently; this is a bit of problem for my muscle memory, and my first hour with it recalled my “button paralysis” when I switched from the HP-41 to the HP-28, or the HP-28 to the HP-48, or later picked up Dad’s HP-42S to do something with him in his lab and couldn’t find anything. Versus. I really hope Swiss Micros implements the HP-IL protocol so that we can get data transfer via USB and also leverage all those HP-IL devices like multimeters, printers, plotters and other fun stuff. However, I felt that I wanted to mention one aspect, that is perhaps not so important to most people, but bears mention - The build quality. But I had heard good things, and also wanted to support the effort overall — both by encouraging the good engineering of low-volume products for enthusiasts, and in the hopes that by supporting Michael Steinmann and his company that we’ll see other interesting things (the work on the DM42 is an excellent example of this).

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