TASEmulators / TASEmulators/BizHawk

(NESHawk) PPU scroll glitches are not emulated

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Core: NesHawk Inaccuracy
Dominant language
C#
Stars
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Forks
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Description

These are noticeable in Super Mario Bros. I'm suggesting this because it happens on hardware (noticed this on several speedruns of the game).

(Image is from Mesen emulator)

Image

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start in NESHawk by reproducing the PPU scrolling behavior described in Super Mario Bros. Compare the emulator output with the hardware behavior shown in the report and the Mesen image; done means the reported scroll glitches are emulated correctly.

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

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