skylersaleh / skyemu Goto Github PK

using official bios

There's about 3-5 pixels in a long strip at the bottom of the menu on Need for Speed - Porsche Unleashed that keeps flickering, on the screen where you have all the options after pressing start.

This persists, even while using the official bios.

using offical Bios
The carpet is rendered over character sprites
here is a save just continue game
Golden.Sun.USA.Europe.zip

The following features were requested from reddit:

• Toggle for screen ghosting
• LCD shader
• Upscaling Shader
• Integer upscaling
• Color Correction

Forked from #35 and #36

This issue is to track the feature request for a Libretro Core

This issue is to track the feature request for an Android Native build to create SkyEmu.apk

In theory the current code base supports this, but the CI infrastructure and build system need updates to produce the android apks.

This request was forked out of this issue: #36 (comment)

choose quick game and the background is missing

Okay, so a while back i discovered SkyEmu when it couldn't import/export .sav files, now that it does support importing files i tried to test it, the bios loaded fine but I can't figure out how to open .sav files. Whenever i drag and drop the file, nothing happens. I quadruple checked that the name of the file was the same as the rom, but it still doesn't work. Please help 😃 (web version by the way)

The background of the GameBoy Color game SpongeBob Squarepants - Legend of the Lost Spatula is incorrectly mapped:

To replicate:

• Start the SkyBoy emulator using the github.io link, https://skylersaleh.github.io/SkyBoy/.
• Open the game "SpongeBob Squarepants - Legend of the Lost Spatula"
• Start a new game

Codename kids next door video cart has a black screen.

Severe graphic corruption on the initial map. (Haven't checked other maps)

This persists, even while using the official bios.

Looks like SkyEmu also has this problem.

nba-emu/NanoBoyAdvance#224

Thanks Flero for the heads up!

There's 2 problems with this game;
Firstly, the game loads graphics way too fast before loading it, causing a graphical issue on the main menu (there's usually a white screen when it tries to load),
And secondly, the game start to slowed down when there's few sprites on screen at the time.

Trying to load Atlantis crashes the emulator window.

This persists, even while using the official bios.

using offical bios
the top energy bar has layering issues, causing graphical glitches. Parts
of the enemy goes over the weapon icons

From Flero on Discord.

Dr Jekyll's head keeps flickering in visibility.

Updated correct screenshot. Other emulators have this too, might be glitched on hardware as well.
This persists, even while using the official bios.

This happens when you go to start a new game.

during gameplay the HUD down the bottom is corrupt

From Dillon on Discord:

Unfortunately, Asterix and Obelix will not load, just a black screen with no sound.

using official bios
you can replicate this by loading the game, going to Options > Audio, turn down both the SFX and MUSIC and you will clearly hear the distortion.

This seems to be caused by spurious hflip flags being included on the tile data for the text background layer.

Tracing through DMA and cpu memory transactions, there is two potential culprit writes from the CPU, both by PC (0x0807a4f2):

The disassembly of the game ROM seems to show a complex expression leading to those writes.

Best guess currently is this is caused by incorrect latching/open bus emulation, as this value may be created by ORing a previous value onto itself, and there is portions in the game where VRAM seems to be being cleared with open bus values.

likely related to the same issue i used to have ITotalJustice/TotalGB#42, EI needed to be delayed.

for me however, it was a bootloop, but for you its a freeze, but this happens in the exact same spot so i still feel
like it's related, and others that didnt delay EI had differing results also

Requested on reddit. https://www.reddit.com/r/EmuDev/comments/vvdqyk/comment/ifjfj7a/?utm_source=share&utm_medium=web2x&context=3

Good work. One question. What about GUI ? I don't liked to do the command line to load the roms, you know. And again, good work. Amazing!

From Discord:

Flero made a test rom to better demonstrate the behavior of the per pixel PPU accesses on HW that SkyEmu currently fails.

There are screeching glitch sounds through the intro of nightfire, and into the start of the game. Not sure if it gets better as you play.

This persists, even while using the official bios.

Bug reported by hekkinneato on reddit: https://www.reddit.com/r/emulation/comments/vve0em/comment/ifjmzc1/?utm_source=share&utm_medium=web2x&context=3

Hello everybody!

Greetings, I was wondering if it's possible,
for developers to add support for: retroachievements.org ?
It would be just perfect, playing the GB, GBC and GBA games,
unlocking the achievements of each specific game.

Another thing, in the future will there be an APK version
to install on android devices?
Thanks in advance for everyone's attention.
Bye see you later.

The track in Mario Kart - Super Circuit seems to render incorrectly, with a strange rightward curve.

Here is a screenshot, showing the right side of the track curving to the right and the tree growing on the track itself.

As a comparison, here is a screenshot from mGBA showing the track's right side being straight and the tree to the right of it in the grass. The sprites are in identical spots, so it seems the rendering of the background layer is at fault.

This was using the web version (in Safari), with a BIOS loaded.

Feature asked by hekkinneato on reddit: https://www.reddit.com/r/emulation/comments/vve0em/comment/ifjmzc1/?utm_source=share&utm_medium=web2x&context=3

Reported by Sorer on Discord.

The emulator doesn't pass the test done by Demotronic GBC demo. So NO BOY! NO DEMO! screen is shown.

Requested on reddit: https://www.reddit.com/r/emulation/comments/vve0em/comment/ifkvjct/?utm_source=share&utm_medium=web2x&context=3

Would you consider adding GBA Player Border to the emulator? Also a LibRetro port.

using offical bios
when you talk to the first fairy
you will notice the top of the text box is a glitchy line

see TASEmulators/BizHawk#3311

crashes out on the konami screen

Pink screen for the background in the start menu, and then during the game, all you can see is the gun.

Audio gets distorted after playing intro for a bit.

This seems to because of a spurious setting in TM0CNT_H (IRQ Enable is disabled). Enabling the IRQ for this timer resolves the corruption.

Requested on reddit: https://www.reddit.com/r/emulation/comments/vve0em/comment/ifkvjct/?utm_source=share&utm_medium=web2x&context=3