Hi everyone!

As a long-time fan of Texas Instruments calculators, I’ve been working on a passion project: my59, an emulator dedicated to the legendary TI-59. After developing my HP-41CX emulator (my41cx), I wanted to bring that same level of detail to the TI community.

The app is reaching its final development stages, and I would love to get some feedback from fellow enthusiasts who know this machine inside and out.

I’m looking for volunteers to help with:
▪ Testing the authenticity of the emulation.
▪ Verifying the behavior of complex programs.
▪ General UI/UX feedback on iPhone/iPad and macOS.

If you’d like to join the beta via TestFlight, please leave a comment below or send me a DM, and I’ll get you set up!

Looking forward to hearing your thoughts and keeping the spirit of the TI-59 alive on modern devices.

Best regards,
Miroslav

Hello, I would like to test this.
Best regards
Gerd

Greetings,

I purchased a TI-58C, then soon afterward, I upgraded to a TI-59 programmable calculator around 1979. I spent several years writing programs for this device, one of which Texas Instruments published in 1982, (see item #7880691 on p. 9 at: http://www.datamath.net/Manuals/PPX-V6N6_US.pdf).

TI published the magazine PPX Exchange several times a year. It contained all kinds of info, including complete programs (all the steps) for the 59. TI also separately published complete programs written by uses that used many of the built-in TI-59 functions. You can find PPX Exchange and some User programs at: https://www.rskey.org/CMS/the-library/?view=article&id=15 .

I would suggest that if you want to test your emulator, you look through these programs for functions you want to test then enter and run these programs to find out if they work correctly. I know from my own experience that TI tested every program before they published them so you can be sure that these programs will work if your emulator works..

I can't help with your emulator cause I use Windows and Linux.

Hello everyone,

I’m thrilled to share some great news! After nearly a year of development and a very productive beta phase, my59 is officially moving to the App Store.

Current Status:

iOS: The app has been approved and is now available on the App Store.

macOS: The version for Mac is currently in the final review process and should be available very soon.

A quick note for users: to ensure the best performance and compatibility with modern features, both versions require the latest version of their respective operating systems (iOS and macOS).

I’ve also launched a dedicated website where you can find more information and links:
👉 https://my59-emulator.com/

I want to extend a huge thank you to everyone who participated in the beta testing and provided invaluable feedback. Your help was essential in getting the microcode logic and the overall experience to where it is today.

I would love to hear your thoughts on the final version!

Best regards,
Miroslav

Is an android port in the works?