Emulators
We know not everyone might want to buy an Grommy2 device and install it into their original TI99 console, and may not even have an original TI99 anymore either, so we also offer a scaled-down version of our TePhOS 9t9 release that runs on all the current emulators out there.

It will at least give you our upgraded Micro-Manager and we still have another 2k of space to jam in some more new features in an upcoming release, for you to enjoy running on your favorite emulator setup, and in the works also will be an upgraded GPL release for those that are lucky enough to own an Myarc Geneve 9640 system.

The following information will tell you how to install our release for each one of the more common emulators out there in usage, if you have an emulator that you are using, that we haven’t supported yet, please contact us regarding it and we will get our developers adding support asap!

  1. CLASSIC 99 v3 (series) by Tursi
    2. Classic99 is one of the easiest emulators to get setup and going, and offers tons of features for the loyal TI99 hobbyist, and currently for our TePhOS 9t9 release to work, all you need to do is copy the supplied TEPHOS-V181.bin file into the /mods directory, and add the lines from TEPHOS-V181.ini (as shown below) into your existing classic99.ini file, and afterwards you can launch it as custom “cartridge”. 🙂
  2. JS99’er by Rasmus-M
    3. The JS99’er emulator is an amazing mastercraft in design by Rasmus-M, and written in Typescript using the Angular framework. To enable our TePhOS 9t9 with it, you need to download the full GitHub and replace the system.ts file located in /src/app/emulators/classes with the one supplied in our release package from our downloads page. Then you need to follow the instructions to compile and self-host the project on your PC, or you can launch it directly via our TI’99ers website! 🙂
  3. V9t9 (java edition) by eswartz
    4. Over a decade ago, one of the very first solid TI99 Emulators was written by eswartz and it ran great on older PC using MS-DOS, but more recently the author returned and produced a nice updated Java Edition, and its very simple to get our TePhOS 9t9 running on it, all you need to do is replace the default 994agrom.bin file with the one supplied in our release package from our downloads page. You can also use this same file if you wish to still run the older V9T9 v6.0 DOS version, which we did ourselves for many years when nothing else was available.
  4. MAME99 by mizapf
    5. MAME is a complex breast when it comes to emulators, since it does everything, so this quick guide assumes you already are familiar with it, and have a working TI99 setup running, that you can just edit to switch over to using our TePhOS 9t9 release. Please see the Ninermame website for more information regarding this emulator.

    The first step is to edit your “launcher” batch file, and add the required device -gromport gkracker which is the Miller’s Graphics Gram/Kracker and then after launching your modified startup, set the DIP switches as shown below for the newly enabled device.

    The second step is to fully shutdown and exit MAME and then overwrite the newly created file inside the /nvram directory with our own supplied version of the 80k gromport_gkracker file found inside the TePhOS 9t9 release zip from our downloads page.

    If all went well, next time you launch your MAME setup, you will see the TePhOS title screen like shown below:
  5. UNICORN by danwener21
    6. Even tho the Unicorn is an hardware board designed for the TI99_22 Project, since it “emulates” Grom’s it is included here. Installation of TePhOS 9t9 for it, requires compiling the supplied main.cpp along with the supplied grom.h for the ESP32 DevKit. It is assumed that you already have experience in this, and that you have an existing working 99/22 setup, and just wish to replace the original TI O.S. with our current beta v1.81 version that been released.
    Have Fun Enjoying TePhOS 9t9 on your emulated TI-99/4A console!