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SGCC (Sega Genesis Checksum Corrector)

A Sega Genesis ROM checksum corrector.

Prerequisites

Usage

Script can be run on any platform that can run Python. By default the ROM file will not be changed and it will create a new file with _cc appended to the filename. You can supply either -i or --in-place to have it modify the ROM in-place or supply -s or --suffix to change the default appended suffix to something else.

usage: [python] sgcc.py [-h] [-i] [-s SUFFIX] path

Compares and corrects the checksum for a Sega Genesis ROM.

positional arguments:
  path                  Relative path to the Sega Genesis ROM file.

optional arguments:
  -h, --help            show this help message and exit
  -i, --in-place        Make header change in-place, otherwise make another file
  -s SUFFIX, --suffix SUFFIX
                        Custom suffix to use when not doing in-place fixing