Game & Watch Ghidra Export

This repo contains an export of the Ghidra database I've been using while reverse engineering the Game & Watch: Super Mario Bros,' firmware. It has both internal and external flash mapped, along with a bunch of symbols for things I've looked at.

To use this, you will first need to supply bits of the firmware (put it alongside the .xml file):

• int_flash.bin: Internal flash firmware, 128KiB
• ext_flash_decrypted.bin: External flash data, only the used parts, which is 1,005,680 bytes. Make sure it's decrypted too. You may obtain this from dumping starting at 0x90000000 after the Game & Watch has booted.
• itcm_rwdata.bin: Decompressed ITCM RAM data
• dtcm_rwdata.bin: Decompressed DTCM RAM data

For the latter two files, use this snippet to decompress. You will need to point it to 0x180a4 in the internal flash to decompress ITCM RAM data and 0x180b4 for DTCM RAM data.

Note the XML export is lossy, so you'll be missing local variable names. I plan on looking into Ghidra's ZIP export format to see if I can exclude the binary and allow import using your own dumped firmware.