TASEmulators / TASEmulators/BizHawk
N64: Disabled Expansion Pak doesn't seem to be emulated accurately
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- Dominant language
- C#
- Stars
- 2.8k
- Forks
- 468
- PR merge metrics
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Description
This seems to be a regression in mupen64plus-core.
Running a game that requires the Expansion Pak without one doesn't seem to "work" properly. Where working would mean either a black screen, or an error screen. This is confirmed to be an issue with Ocarina of Time Randomizer, and Majora's Mask.
We only realized this because Ocarina of Time Randomizer should not boot without the expansion slot, and yet only new code that stores music in the Expansion Pak RAM has started to cause issues. If you load a save state with these new code changes the game will crash when it tries to play the music.
Standalone mupen64plus-core (2.5.9) properly shows an error screen for Majora's Mask and a black screen for Ocarina of Time Randomizer when "DisableExtraMem" is enabled.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the issue with DisableExtraMem enabled in Ocarina of Time Randomizer and Majora's Mask, including loading a save state that plays music. Compare BizHawk's behavior with standalone mupen64plus-core 2.5.9; done means the games show the expected black or error screen instead of continuing or crashing.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- csharp
- Domain
- game-dev
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100