Homebrew Emulation GameYob, a gameboy emulator for DS

[lps]

I just implemented save states. It was easier than I would have thought.

Good news!
Is lameboy states compatible with gameyob?

 

[Snailface]

Good news!
Is lameboy states compatible with gameyob?

I don't think he can decode a lameboy savestate without lameboy source code.

 

[lps]

Why not? Savestate its omly ram dump (if i correctly understend it).
For example gpSP has same SS format with VBA. But i dont know is VBA opensource or not.
Maybe we need to try contact with Nutki (lameboy author) for sources? His blog: http://lameboy.nutki.com/

 

[Rydian]

IIRC a save state saves the state of emulation, as in the entire emulated machine.

 

[Geren]

Maybe we need to try contact with Nutki (lameboy author) for sources? His blog: http://lameboy.nutki.com/

That has been tried many times already.

One of the main reasons Gameyob is in active development, is because lameboy sources were never released, and none of the coders of the nutki group ever responded to contact. They practically vanished from the scene.

 

[Snailface]

Why not? Savestate its omly ram dump (if i correctly understend it).
For example gpSP has same SS format with VBA. But i dont know is VBA opensource or not.
Maybe we need to try contact with Nutki (lameboy author) for sources? His blog: http://lameboy.nutki.com

Like Geren said, many people have tried and he simply doesn't respond...

Except for this semi-recent post:
http://lameboy.nutki.com/?p=24&cpage=10#comment-53760

Yea, basically he's an asshole and will never release it.

 

[Drenn]

Like Geren said, many people have tried and he simply doesn't respond...

Except for this semi-recent post:
http://lameboy.nutki.com/?p=24&cpage=10#comment-53760

Yea, basically he's an asshole and will never release it.

You sure that's the real Nutki? He looks like a troll to me, you can put your name down as anything in the comments. So yeah, he seems to have completely disappeared.

And compatibility with Lameboy save states... not happening. States are a bit more complicated than just a ram dump. They also contain information about the cpu as well as the hardware state, which is usually very emulator-specific in its format.

 

[2ndApex]

How's the new T-rex FPS prototype working?

 

[Snailface]

How's the new T-rex FPS prototype working?

Its all garbled, like an nes game that needs a blow job.
I tried to adjust the debug settings to no avail.

I would advise any dev not to try to waste any time getting this to work, the game doesn't look like any fun at all.

 

[Kouen Hasuki]

Its all garbled, like an nes game that needs a blow job.
I tried to adjust the debug settings to no avail.

I would advise any dev not to try to waste any time getting this to work, the game doesn't look like any fun at all.

But getting it to work would make it far more accurate in emulation besides what doesn't look fun to you doesn't mean it is no fun for anyone and myself personally I would love to see it running

 

[VatoLoco]

Thanks for working on a DSi version, Drenn!
Just tried it out via my Sudokuhax'd XL, and from a quick play Shantae ran at a steady 60fps with sound!

edit: got a guru error at the end of the first level

 

[Deleted member 319809]

But getting it to work would make it far more accurate in emulation besides what doesn't look fun to you doesn't mean it is no fun for anyone and myself personally I would love to see it running

At this point, it may be more fruitful to do the reverse. Because the core is mature, it would be better to get the rest of the core to behave correctly so that some esoteric* games work properly, instead of getting some esoteric* games to work properly so that the core behaves correctly. Using "corner case tests" like Gambatte's, as well as Blargg's CPU tests, would indirectly help figure out what's wrong with the games.

Gambatte's 10-sprites-per-line limit tests are failing hard on GameYob, which may indicate some form of dependency on 10-sprites-per-line in some games that currently look garbled.
_ _ _ _ _ _ _ _ _
* esoteric = using uncommon CPU/graphics/audio features

 

[Arm73]

Thanks for working on a DSi version, Drenn!
Just tried it out via my XL, and from a quick play Shantae ran at a steady 60fps with sound!

edit: got a guru error at the end of the first level

Wait a minute......
I've got a " Sudokuhax'd " DSiXL and as of the latest build, I still don't get any sound !
How did you get the sound ? Are you running it on a flashcart in DS mode or did you run it from the SD card via sudokuhax ?
What else do you have on your card ?

 

[Drenn]

Wait a minute......
I've got a " Sudokuhax'd " DSiXL and as of the latest build, I still don't get any sound !
How did you get the sound ? Are you running it on a flashcart in DS mode or did you run it from the SD card via sudokuhax ?
What else do you have on your card ?

That's weird, Matando also said that he had sound working... he uses sudokuhax.

Thanks for working on a DSi version, Drenn!
Just tried it out via my Sudokuhax'd XL, and from a quick play Shantae ran at a steady 60fps with sound!

edit: got a guru error at the end of the first level

It looks like dsi-mode is still rather unstable in some cases. Next time you get a guru error can you tell me the value of "pc" and the exact version number? (it should be visible from the flashcard's menu.)
I don't know if either of you were using the dsitest branch, but it should be working just as well in master now. (which is what the "latest build" comes from.)

 

[VatoLoco]

i was using the dsi test branch via SD card. i'll try out the main one right now and give the 'pc' error I get.

edit: installed the latest build and there was no guru error at the level switch!
Nice work, i must say =D

 

[Arm73]

i was using the dsi test branch via SD card. i'll try out the main one right now and give the 'pc' error I get.

edit: installed the latest build and there was no guru error at the level switch!
Nice work, i must say =D

Hmmm...this is strange.
Now that I think about it, I can't get the homebrew channel to work anymore, when I boot it, it freezes on the file selection screen.
Also I redownloaded the latest gamyob build, I renamed it boot.nds and placed in on the root of a different SD card ( I though the old one had some fragmentation problems or too many folders ) and still, I can boot it fine, I can select the games ( most of which run fine ) but still no audio....I also tried disabling and re enabling sound but still no luck.

I'm on 1.4.1 U , could it be that I need to update my DSiXL to a newer firmware ? I was afraid I was gonna lose the sudokuhax but I asked elsewhere on the forums some time ago and I've been told that by updating , you only lose the ability to install the hax, but if you already have it it should be fine.

Any thoughts ?

 

[Drenn]

Its all garbled, like an nes game that needs a blow job.
I tried to adjust the debug settings to no avail.

I would advise any dev not to try to waste any time getting this to work, the game doesn't look like any fun at all.

Do you mean, that it works at all? When the bios is off, all it does for me is flash leftover tiles from the last game on the screen. It doesn't run in bgb either.

At this point, it may be more fruitful to do the reverse. Because the core is mature, it would be better to get the rest of the core to behave correctly so that some esoteric* games work properly, instead of getting some esoteric* games to work properly so that the core behaves correctly. Using "corner case tests" like Gambatte's, as well as Blargg's CPU tests, would indirectly help figure out what's wrong with the games.

Gambatte's 10-sprites-per-line limit tests are failing hard on GameYob, which may indicate some form of dependency on 10-sprites-per-line in some games that currently look garbled.
_ _ _ _ _ _ _ _ _
* esoteric = using uncommon CPU/graphics/audio features

I can think of a more likely reason why some games have garbled sprites, mid-frame changes to tiles don't work properly. The new graphics engine will support this, if I can make it run fast enough... and I'll give it the 10-sprites-per-line limit also.

 

[VatoLoco]

...I'm on 1.4.1 U , could it be that I need to update my DSiXL to a newer firmware ? I was afraid I was gonna lose the sudokuhax but I asked elsewhere on the forums some time ago and I've been told that by updating , you only lose the ability to install the hax, but if you already have it it should be fine.

Any thoughts ?

My sys is at 1.4.5u with Sudokuhax v1.0 still working fine, but i dont see any reason you should update. Im using HBmenu as a launcher for nds files.
Maybe try a fresh sd format, or a different Shantae dump.

 

[Arm73]

Yep, It's silly but the problem was with my SD card.
I formatted it with the SD formatter ( size adjustment on ) , and now the homebrew channel works again, and I've got the audio working in Gameyob !!
Hurrah !!!

 

[Drenn]

Yesterday I made it possible to save settings so they're remembered even after exiting gameyob. Now that preferences can be saved, I've made buttons 100% remappable. I also implemented autofire buttons. You can modify the config either within gameyob or by editing "gameyob.ini" in the sd card's root directory.