[develop] non-compliant Flashram saves

[networkfusion]

Description

Add a new type for non-compliant flashram saves.
Linked to: Polprzewodnikowy/SummerCart64@f546e5d

Motivation and Context

Made popular by incorrect firmware implimentation on the ED64.

How Has This Been Tested?

Screenshots

Types of changes

• Improvement (non-breaking change that adds a new feature)
• Bug fix (fixes an issue)
• Breaking change (breaking change)
• Documentation Improvement
• Config and build (change in the configuration and build system, has no impact on code or features)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

Signed-off-by: GITHUB_USER <GITHUB_USER_EMAIL>

[coderabbitai]

Important

Review skipped

Draft detected.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[networkfusion]

Pottentially linked: #100

[FrostKnight]

Would it be possible to make it possible to import saves from mupen64plus to summercart64? That would really be helpful if you could.

[Kethku]

I suspect that this save type would enable running ootmm combo randomizer. If I understand right, there is a merged but unreleased summercart firmware that implements the new save type and this PR implements that save type via a rom config. If thats correct is it a bad idea to build that firmware and test this myself?

[Kethku]

I went ahead and tested it with a new rebase on top of the current main. It works but needs an 8th save size added to the SAVE_SIZES table in flashcart.c.

Once thats added, the non compliant saves from the combo randomizer I've been testing are properly saved and reloaded even after a power cycle.