GameJoy is a Game Boy emulator being developed in C++.
To test the emulator, I've been using the individual test ROMs created by Blargg. They can be downloaded from https://gbdev.gg8.se/files/roms/blargg-gb-tests/ under cpu_instrs.zip, inside the 'individual' folder. Currently, all tests apart from 02 are passed.
So far, it supports Tetris, with some graphical errors.
The emulator currently runs as fast as possible, so I need to cap its speed.
There is controller support - I have tested it on my 8BitDo SN30 Pro+, so other XInput devices should work. Just make sure you connect your controller before starting the emulator!
The latest version can be downloaded from here. Alternatively you can try building it from the source using Visual Studio using the provided project files, although I have not yet ensured that the project will set up correctly on another machine. I may look into finding a better way to do this in the future, rather than making this process reliant upon Visual Studio.