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kbeckmann / game-and-watch-retro-go

Emulator collection for Nintendo® Game & Watch™
GNU General Public License v2.0
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Recovered NES Simcity glitching and showing wrong tiles #75

Open dronesflier opened 3 years ago

dronesflier commented 3 years ago

Emulator: NES ROM name: simcity.nes Git hash of main repo [heads/main-0-g8b5dd9a] and submodule [heads/nintendogw-main2-0-g982dfa1].

Bug description: When the simcity ROM is launched the emulator gliches out, showing wrong tiles and colors. There are no issues with the music

Steps to reproduce the behavior: Simply flash the simcity rom to the G&W. Upon load the above listed things occour.

Expected behavior: I have run the game in "higan" (another nes emulator) and it worked as expected. There is a screenshot of it working here: SimcityNormal This is what it looks like on my G&W: 2021-01-27-150834 2021-01-27-150850

My OS is debian-based(linux mint) I am using the cinnamon desktop(default for the system)

I have tried reflashing the rom and nothing has changed. I can also play other games perfectly fine.

ChrisHughes commented 3 years ago

I'm seeing similar glitching on other MMC5 games like Castlevania 3.

rzinurov commented 3 years ago

I saw a similar behavior when I "resumed" the newly added ROM after I re-flashed the GW with a new set of ROMs. The loaded state of the new ROM contained graphics and parts of the screen of a different ROM, which state I saved before I re-flashed. In my case it wasn't ROM-specific and it looked like a corrupted state of the saved data. Try deleting the save from the menu and then saving/loading the game. Chances are - it will work just fine, in which case the real issue is related to persisting the save states when re-flashing the device.