libretro / libretro/RetroArch

Stella core ( not 2014 ) has issues with games detected as using Quadtari

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core bugs - not retroarch bugs invalid: won't fix
Dominant language
C
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Description

First and foremost consider this:

  • Only RetroArch bugs should be filed here. Not core bugs or game bugs
  • This is not a forum or a help section, this is strictly developer oriented

Description

Joystick controller does not work in any game that Stella detects as using the Quadtari on the left port and savekey on right port. Notable homebrew games are Galagon, Gorf Arcade Game, Wizard Of Wor Arcade Demo and Zoo Keeper Demo by champ games and chaser.

Expected behavior

After pressing 'reset' to begin a game the player should be able to move their ship/character and use the fire button to fire, etc.

Actual behavior

Movement of the joystick and pressing the fire button results in no action.

Steps to reproduce the bug
  1. Load the game
  2. Press button assigned to "reset"
  3. Once the game gives control of your ship/character try to use the controls assigned to left, right, up, down or fire. Ship player will not move.
Bisect Results

Likely either happened when Quadtari support was added or the games were added to the stella internal database as having Quadtari support.

Version/Commit

You can find this information under Information/System Information

  • RetroArch: [6.6_pre/ae527a7]
Environment information
  • OS: Windows 10
  • Compiler: [In case you are running local builds]

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 by reproducing the issue with Stella core and a listed game such as Galagon, Gorf Arcade Game, Wizard Of Wor Arcade Demo, or Zoo Keeper Demo. Trace the Quadtari left-port and savekey right-port controller handling after reset; done means joystick directions and fire work in the affected games.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
frontend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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