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@ZeroSkill1
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Makerom is currently missing the functionality to add the New3DS-only bit to title IDs. This makes it impossible to use makerom for creating New3DS-only variations of certain system titles, e.g.:

mcu uses title ID 0004013000001F02.
but the New3DS specific variation of it uses 0004013020001F02.

I have added this functionality through the use of a new Option field UseKtrProgramId in the RSF. I'm open to renaming the field or using an alternative method to specify this option, though I thought adding it to the RSF would be the most fitting in this case.

@ZeroSkill1 ZeroSkill1 changed the title Add support for New3DS bit in Title ID [makerom] Add support for New3DS bit in Title ID Sep 25, 2025
@jakcron
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jakcron commented Oct 12, 2025

Thank you for the PR, this is certainly missing from makerom functionality.

I did some investigation, and New3DS exclusive games don't set this value in the program ID. I've only seen it in system titles that need to be distinct from the Old3DS versions.

So given it's clearly optional for New3DS titles to use it, a flag makes sense. I'll merge this in a bit.

@ZeroSkill1
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Any updates on this?

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2 participants