Cobalt is a Chip-8 interpreter written in assembly for the Game Boy (DMG).

The RGBDS toolchain and GNU Make are required to build Cobalt.

To build the ROM, execute:

make

To clean the build directories, execute:

make clean

The Snake ROM from chip8Archive (under the CC0 license) is embedded into Cobalt by default, and the key mappings are like so,

To change the ROM file and key mappings, you need to edit the src/rom.s file manually.

1. The Makefile (with project.mk) is adapted from the GB Boilerplate repository, which is licensed under the Zlib license. A copy of the license may be found in the README/ subdirectory.

2. Tested with RGBDS version 0.9.2 and GNU Make version 4.3. Not tested on actual DMG hardware, do it at your own risk! Needs an accurate emulator to run!

Cobalt is licensed under the terms of the Zlib license. Earlier versions (till 1.1.0) were licensed under the terms of the Apache-2.0 license.