Emu48 for Android

Regis Cosnier

About this app

This project ports the Windows application Emu48 written in C to Android.
It uses the Android NDK. The former Emu48 source code (written by Christoph Giesselink) remains untouched because of a thin win32 emulation layer above Linux/NDK!
This win32 layer will allow to easily update from the original Emu48 source code.
It can open or save the exact same state files (state.e48/e49) than the original Windows application!

Some KML files with theirs faceplates are embedded in the application but it is still possible to open a KML file and its dependencies by selecting a folder.

The application does not request any permission (because it opens the files or the KML folders using the content:// scheme).

The application is distributed with the same license under GPL and you can find the source code here:
https://github.com/dgis/emu48android


QUICK START

1. Click on the 3 dots button at the top left (or from the left side, slide your finger to open the menu).
2. Touch the "New..." menu item.
3. Select a default calculator (or "[Select a Custom KML script folder...]" where you have copied the KML scripts and ROM files (Android 11 cannot use the folder Download)).
4. And the calculator should now be opened.


NOT WORKING YET

- Disassembler
- Debugger


LICENSES

Android version by Régis COSNIER.
This program is based on Emu48 for Windows version, copyrighted by Christoph Gießelink & Sébastien Carlier.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

Note: some included files are not covered by the GPL; these include ROM image files (copyrighted by HP), KML files and faceplate images (copyrighted by their authors).
The Eric's Real scripts ("real*.kml" and "real*.bmp") are embedded in this application with the kind permission of Eric Rechlin.

Ratings and reviews

Really great calculator. I found this after having run into a really nasty bug with Droid48 that required me to uninstall/reinstall to clear. I found this through Droid48 Reader. To me, this emulator seems more capable. One thing I noticed is that I am not able to enter lower case characters like on Droid48. I have very little experience with a real 48 so I don't know how the real one behaves.

Some minor issues with the display unless I use the bog standard portrait mode HP-50g skin. That one works perfectly, almost better than the real thing. The other included 50g skins cause keypress lag and other strange issues that don't detract from this outstanding app. Great work! Running on an old Samsung tablet with Android 4.4.3. Wish list - an expanded display (as if the calculator had a larger display screen). Maybe that isn't possible.

This is a very good transfer of HP calculator to android, but the app has a problem. When you enter numbers into it, often a white rectangle flashes at the right bottom corner and messes up the input. You have to be careful and wait until the rectangle is gone, otherwise you have to start entering again.

What's new

- Updated source code with Emu48 version 1.66+.
- Fix an USB serial issue with Android 13+ (fix #23).
- Extend the KML MenuItem commands for Android only with: 201 (CUSTOM_PIXEL_BORDER_ON), 202 (CUSTOM_PIXEL_BORDER_OFF), 203 (CUSTOM_PIXEL_BORDER_TOGGLE) (fix #28).