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                   You are ICON
             last defense of Humanity.
              Your vessel a prototype,
         it remains the final opposition
      against the extraterrestrial incursion.
                Emerge victorious
            lest Humanity will perish.

Icon is an arcade-style Fixed Shooter action game developed for the original Nintendo Entertainment System (NES).

Build

To build leverage the Makefile, running make in the root directory.

Optionally, and if the EMULATOR_PATH is set, run make && make run to build and run the game -- run assumes the .rom can be loaded as the first parameter to the provided emulator, and detaches from the process with &.

make && make run

cc65

Code leverages ca65 macros, see source and documentation at: https://github.com/cc65/cc65

Debug

The build process is designed to output additional detail that can be used for debug purposes -- specifically data for FCEUX is generated during the build process using a utility script (./util/gen.fceux.nl.sh)