20180726

Firmware created with:

ffmpeg -i tile.png -f rawvideo -pix_fmt rgb565 tile.raw
./mkfw "DOOM (20180726)" tile.raw 0 16 1048576 app build/esp32-doom.bin 66 6 4194304 wad doom1-cut.wad

20180721

Firmware created with:
split -b 2M -d doom1-cut.wad doom1-cut.wad
./makefirmware doom-odroid-go-20180721 0 build/esp32-doom.bin 1 doom1-cut.wad00 2 doom1-cut.wad01