GBC Emulator port - khedgb (works on 5.0)

jakibaki · May 19, 2018

SimonMKWii said:
@jakibaki It appears that it uses a 48KHz sampling rate, setting it to 44.1KHz should eliminate the sound issue.

That's what it was at before the sound-update version. The pitch was right then but the sound itself was terrible.
With 48KHz the sound is ok but the pitch is too high.

SimonMKWii · May 19, 2018

jakibaki said:
That's what it was at before the sound-update version. The pitch was right then but the sound itself was terrible.
With 48KHz the sound is ok but the pitch is too high.

Hmm, that is really odd. It must be an issue with the way the emulator handles audio.

jakibaki · May 19, 2018

SimonMKWii said:
Hmm, that is really odd. It must be an issue with the way the emulator handles audio.

I think it's an issue with the sdl-port or libnx, not the emulator itself.
The same thing is happening with the gba-emulator.

Deletedmember448668 · May 19, 2018

jakibaki said:
I think it's an issue with the sdl-port or libnx, not the emulator itself.
The same thing is happening with the gba-emulator.

Are there any other ways to plugin audio? Maybe a different source?

SimonMKWii · May 19, 2018

jakibaki said:
I think it's an issue with the sdl-port or libnx, not the emulator itself.
The same thing is happening with the gba-emulator.

The GBA emulator sounds significantly better though, it's a weird issue...

hippy dave · May 19, 2018

How much hassle would it be to insert code to resample from 44.1 to 48 before sending the sound to sdl?

pottsork21 · May 20, 2018

The problem I have with all Emulators on my switch 3.0.0 is that I cant save any games. in game or save state

CaptainPumpkinhead · May 20, 2018

Is anyone else getting significantly more Switch crashes in docked mode than in handheld mode?
I was playing Link's Awakening DX, and it would crash when I paused, when I went inside a building, and sometimes just randomly. But when I played in handheld, I had none of these problems.
I saw this issue with the GBA emulator as well.

pottsork21 · May 20, 2018

CaptainPumpkinhead said:
Is anyone else getting significantly more Switch crashes in docked mode than in handheld mode?
I was playing Link's Awakening DX, and it would crash when I paused, when I went inside a building, and sometimes just randomly. But when I played in handheld, I had none of these problems.
I saw this issue with the GBA emulator as well.

Same for me.

Cencil · May 23, 2018

I have no idea why but after playing around the past day with gdkgba and vbanext, I tried opening this gbc emulator and I'm getting a system error crash right off the bat when i open it. Both undocked and docked. It was working 2 days ago? So confused

JJTapia19 · May 23, 2018

Cencil said:
I have no idea why but after playing around the past day with gdkgba and vbanext, I tried opening this gbc emulator and I'm getting a system error crash right off the bat when i open it. Both undocked and docked. It was working 2 days ago? So confused

That just happened to me with another homebrew app after days without using it and I know it was working the last time I used it. The fix I found was rolling back to a an older version and booting it up once, then updating again. It was really weird. Please try that out and report back.

Cencil · May 23, 2018

JJTapia19 said:
That just happened to me with another homebrew app after days without using it and I know it was working the last time I used it. The fix I found was rolling back to a an older version and booting it up once, then updating again. It was really weird. Please try that out and report back.

Yes I just finished deleting khedgb.nro, gdkGBA.nro, and vbanext.nro. Instead of rolling back to an older version I put the same version I was using (the latest) for all 3 of those .nro files back on my SD card, and weirdly enough the gbc emulator starting working again...but the vbanext emulator starting crashing on start up! I then did the exact same thing 3 more times copying the latest versions on and off the sd card until I have no idea how but they all finally work without any crashes. So every time i add a new .nro to my sd card it apparently breaks other ones that were working fine... :wacko:

Zumoly · May 24, 2018

Cencil said:
Yes I just finished deleting khedgb.nro, gdkGBA.nro, and vbanext.nro. Instead of rolling back to an older version I put the same version I was using (the latest) for all 3 of those .nro files back on my SD card, and weirdly enough the gbc emulator starting working again...but the vbanext emulator starting crashing on start up! I then did the exact same thing 3 more times copying the latest versions on and off the sd card until I have no idea how but they all finally work without any crashes. So every time i add a new .nro to my sd card it apparently breaks other ones that were working fine...

The same issue happened to me yesterday. After putting an updated version of the vba homebrew, the old version stopped working.
I was thinking that putting two versions of the same homebrew was causing this and deleted the new one but it did not solve the issue. Besides I used to have two working versions of the gdkGBA homebrew.
Can someone look into this issue?

Ygreck · May 24, 2018

The color mod of Super Mario Land 2: 6 Golden Coins don't start as gbc game and so it don't work

Leonidas87 · May 24, 2018

@jakibaki I know people will say it's stupid but why not have the option.

@jakibaki any chance you could post a semi stretched version of GBC?

Like a 6 by 9 aspect ratio of sorts.

Maybe not complete full screen but an in between.

Idk maybe it would look decent semi stretched, maybe better fully stretched, what I'm asking could you at least try it out and then upload the best of what you can get.

Hopefully this is not something to time consuming for you.

LuisRosado · Jul 10, 2018

were is the download link, for the life of me i cant find the download link, i found alink for update version 2 only, on max consoles

Chipidy · Jul 10, 2018

jakibaki said:
If you're having trouble with this (or don't want to deal with the problems it has) I recommend following this tutorial to play gb/gbc games in the excelent vba-next port.

Since retroarch isn't working on anything higher then 3.0 right now I ported the gameboy color emulator khedgb to the nintendo switch. (Works on all versions as far as I know)

Right now it doesn't have many features but it's enough to finally enjoy pokemon on the nintendo switch

Simply put the rom into sd:/switch/roms/gbc and start the homebrew.

This emulator can't detect when you used the ingame save-feature so you'll have to press the X-button every time after using the in-game save feature. Otherwise the save will get lost after restarting the emulator!

Please don't expect too much from this, I just made this so I could play pokemon and it's not going to get many features.

As soon as retroarch gets updated for 5.0 this will instantly become obsolete.

source (you need the sdl2-libraries from the devkit-pro pacman to build this)

UPDATE:
Added audio support and proper scaling! (Many thanks @cpasjuste for the scaling-hint!)
UPDATE2:
Fixed a bug where after saving the game for a few times the emulator would crash.
UPDATE3:
Added joycon-analog-stick-support!
UPDATE4:
Removed the debug log.
UPDATE5:
Added a simple file picker! You can now play multiple roms
UPDATE6:
Audio is much better now (not perfect yet though). Many thanks to @renhei for the fix-suggestion!
UPDATE7:
Changed rompath from sd:/switch/roms to sd:/switch/roms/gbc in order to avoid confusion with the gba emulator. Also double joycons now work in unattached mode!

Awesome job .It works great haha. Pokemon is a good all time game in general. Pokemon Blue! Also you say retroarch, do you mean it running in Lakka or on it's own?

SylasMc · Jul 10, 2018

Anyone have the newest version compiled? My computer is out of commission or I would build it myself.

jakibaki · Jul 10, 2018

I'll reupload the latest build and attach it to the main post! No idea why it vanished D:

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Ok, for some reason new attachments also disappear D:
I'll upload it to dropbox and link that in the main post.

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