• TRS-80 Emulator 1
  • TRS-80 Emulator 2
  • TRS-80 Emulator 3
  • TRS-80 Emulator 4

TRS-80 Emulator

This is the first version of a TRS-80 Model I & III emulator. Note that the CoCo is NOT supported. The CoCo has a completely different architecture and is out of scope for the time being. This app is a port of xtrs to Android. Please note that this version is alpha-ware. I'm releasing my work under the Apache V2 Open Source license and it does not cost you anything. Instead of giving this app a one-star rating either wait for updates or help making it better. If you really feel compelled to leave a one-star rating, perhaps consider writing a comment describing what doesn't work. You can find the complete source code at: https://github.com/apuder/TRS-80
The following features are currently supported:•  Model I & III (text mode only)•  Cassette support. A default blank tape is automatically created (a different   cassette image can be mounted via the Edit Configuration dialog). Use the   rewind button in the action bar to rewind the tape to the beginning•  Floppy disks•  Sound•  Different keyboard types, including a tilt interface where the accelerometer   triggers cursor keys (for games)•  Game controller support: joystick and DPAD buttons are mapped to appropriate cursor keys.   Other game controller keys are mapped to space for now (future version might allow   custom mapping)•  Define different keyboard layouts for landscape and portrait mode•  When an external keyboard is detected, it will automatically be used   instead of the configured soft-keyboard.   Use -B and -C for and respectively•  Chromecast support: cast your TRS-80 application to your big screen!

Please consider to contribute a translation: https://github.com/apuder/TRS-80/blob/master/app/src/main/res/values/strings.xml

Permissions:•  Write to external storage: the emulator needs access to ROM and disk   images that are stored on the SD card•  Network state: needed for Chromecast•  Internet: Crashlytics crash reporter

Join the community:https://plus.google.com/communities/110959098806298034548

Category : Arcade

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Reviews (29)

Nin. I. Apr 15, 2022     

Love it, particularly landscape mode with the keyboard overlay.

Vie. B. May 5, 2020     

Like it anyway but the keyboard on portrait is too small, even on compact mode. for big hands like this, the user might end up tapping the wrong key all of a sudden instead of the key the user intended to press. Other than that, great app!

Rog. C. Feb 10, 2022     

After last update don't install new disks....don't see the .ROM and .DSK files ...it's a bug !!!

Nic. G. Jan 26, 2022     

Unfortunately did not work on my Android 11 Moto G Stylus. After install press Play goes back to Play Would love for this to work. L

Joh. N. Dec 6, 2018     

Great, hard to find, rare, usefull for crunching numbers and thought projects. Thank you.

Zac. M. Nov 11, 2018     

The .cas issue was my end so I changed to 5 stars. However I do wish the joy stick was smaller.

Eri. K. May 6, 2019     

weird. uninstalled. didn't want to download strange files to get it to run.

Lar. H. Aug 22, 2020     

Amazing emulator!! Great work. Very Impressive.

Ind. C. Nov 10, 2020     

Just like I remember. Is there a TRS-80 Color Computer emulator in the making? I would love that one even more.

N.. E. N. Apr 18, 2022     

Labor of love from a Ben Eater follower...

Tim. G. Sep 26, 2018     

This is awesome. I love old computers.

Pec. May 26, 2020     

I Like It. But Can You Add A TRS-80 Model 4 So I Will Rate 5 Stars Or Else I Will Rate It 1 Star

Gen. I. Jan 10, 2022     

Opens then closes

Ale. G. Dec 15, 2018     

I am about to say this is a great computer because I will give you 9999999999999 stars.

kii. Jan 1, 2022     

Dunno what went wrong the first time, thanks.

Dav. W. Dec 18, 2020     

Outstanding! Many thanks to the author of this app for a fun trip down memory lane. Excellent app and customer support.

DJ. B. Mar 30, 2019     

The keyboard seems to have issues with upper and lowercase in some programs, notably MMSForth. Caps lock should work for all keys, but it doesn't.

Jim. B. Jan 27, 2019     

Really impressive!

Kit. t. Aug 10, 2018     

Trying to play Pyramid 2000, the rom i am downloading is a .CAS but i think it is not the right one file extension, what file extension do this use.

Ray. G. Nov 3, 2017     

Stunning piece of work...highly recommended

Wen. W. Oct 7, 2017     

As a retro computing hobbyist, I still have my actual, original TRS-80 Model III. This emulator lets me try out ideas when I'm away, and they work identically on the real thing when I get home. Puder has totally aced the Android TRS-80 emulation! The more I look, the more I find that it can do!

Jas. M. Oct 17, 2017     

Great idea, the programming works, but oh my goodness the on screen touch keyboard is soooo slooooowww!

jon. Aug 12, 2017     

I really love this TRS-80 emulator! However, I have recently lost the ability to return to NEWDOS/80 disk image. I was attempting to CLOAD a saved program when it errored then locked up (unbreakable loop of scrolling text). I had to delete it. Now when I create a new disk image I cannot CSAVE or CLOAD any of my programs or return to NEWDOS/80. I have uninstalled and reinstalled multiple times but it will not return to the original setup. Frustrating.

Gle. C. Jun 11, 2017     

love it so far. Will there be conecivity added? Would be awesome

A. G. u. Mar 24, 2017     

Great functionality for a beta release ... and free to boot! Just as responsive as my original M1 :-) Hoping (please?) for an update to fix some issues I'm seeing: 1. disk changes don't take effect so only option is to delete the instance. 2. External keyboard causes auto key repeat after a 1/2 second delay. Hardware: Galaxy Note 4 running 6.0.1 Edit: willing to pay for improvements

Lyk. Jan 30, 2017     

This app has really come a long way. Support for virtual onscreen joystick has been added, and best of all the app no longer stutters when playing sound. Truly excellent.

Sea. B. May 3, 2017     

Way to go, love the retro. Now if I could get my Trs80 model 4 to be this quick.

A. G. u. Oct 30, 2016     

Good work i used to run sequenced pumps running a printer interface and a model 1 brings back some early memories

Kev. B. Sep 7, 2016     

You can tell that Arno loves the old Tandy computer, TRS-80 Emulator is very well done