libretro / libretro/fmsx-libretro

MSX2+ boot screen skipped

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Dominant language
C
Stars
36
Forks
43
Avg merge
4h 7m
Merged PRs (30d)
1

Description

When booting in MSX2+ mode, the flashy boot screen is not shown. Note: fMSX itself also does not do this.

I tried resolving this, and called in some help at https://www.msx.org/forum/msx-talk/emulation/msx2-boot-screen-in-fmsx, but was not able to solve this. (F4 port and Kanji driver ROM done, but not sprite collision detection & timing)

Might not be possible, given the limited emulation accuracy of fMSX. At least not without ending up with a completely revamped emulator ;) Still, if anyone feels up to it, please drop me a line and maybe we can fix this together.

Contributor guide

No contributing guide indexed for this repository

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 reviewing the MSX2+ boot path in fMSX and the existing F4 port and Kanji driver ROM work. Use the linked MSX.org discussion for prior investigation, then determine whether sprite collision detection and timing can be emulated accurately enough for the boot screen to appear.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
computer-graphics
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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