This is a Verilator-driven graphical simulation of nestang. Should be useful in debugging game / mapper support, among other things.
To run the simulation:
hexdump -ve '1/1 "%02x\n"' game.nes > game.nes.hex
# change INES_SIZE in game_data.v to reflect size of game.nes
make sim
You need to set up verilator / libsdl2 with something like:
# Linux
sudo apt install verilator libsdl2-dev
# Mac
brew install verilator sdl2
For an overview of verilator, see: https://www.itsembedded.com/dhd/verilator_2/