Homebrew [Release] PicoDrive for 3DS

[FateForWindows]

that happens with all of bubble's emulators, every single one.

Doesn't happen with SNES9X as of the latest update.

 

[bubble2k16]

I remember a fellow forum was talking about how the screen stretch isn't working for H32 games. Can't seem to find that post anymore. I just wanted to ask a quick question: Does anyone know if the Sega Genesis has games that ever utilized both H32 (256x224) / H40 (320x224) resolutions in a single frame?

 

[RocketRobz]

I remember a fellow forum was talking about how the screen stretch isn't working for H32 games. Can't seem to find that post anymore. I just wanted to ask a quick question: Does anyone know if the Sega Genesis has games that ever utilized both H32 (256x224) / H40 (320x224) resolutions in a single frame?

Yes. One example is Golden Axe.

 

[bubble2k16]

Yes. One example is Golden Axe.

Nice. Thanks. Am trying to see if I could shortcut the thing by assuming it's always H32/H40 per frame. Looks like I can't now.

--------------------- MERGED ---------------------------

Yes. One example is Golden Axe.

I just tried Golden Axe. It runs H32 in the title, and H40 in-game. But does it have both modes in a single frame? Is there a particular level or screen that does that?

 

[RocketRobz]

Nice. Thanks. Am trying to see if I could shortcut the thing by assuming it's always H32/H40 per frame. Looks like I can't now.

--------------------- MERGED ---------------------------



I just tried Golden Axe. It runs H32 in the title, and H40 in-game. But does it have both modes in a single frame? Is there a particular level or screen that does that?

Oh, both in a single frame? Nope, not possible.

 

[bubble2k16]

Oh, both in a single frame? Nope, not possible.

Ok great. That makes my job a little simpler.

 

[bubble2k16]

Hi guys, I'm releasing a quick beta 3dsx version for anyone who wishes to test.

You can download from below.


Edit: Clicked "Post" too quickly. Forgot to add the change log:

v0.92b
- Support for Mega CD. You can actually play Sonic CD on O3DS (but setting frameskip to 1 to 2). It's choppy due to the skipped frames, but playable if you can tolerate that.
- Very minor optimizations and bug fixes for YM2612 FM emulation
- Now saves SRAM
- Sound generation lag resolved (but I'll need someone to tell me if it really sounds better)
- Default frame rate for multi-region games to 60FPS
- Added option to force frame rate to 60/50 FPS
- Fixed screen stretch for H32/H40 games.
- Added more screen stretch options for PAL aspect ratio.
- 6 button support
- And some minor stuff here and there that I forgot.

 

[wicksand420]

@bubble2k16 Where do we put the bios files?

 

[bubble2k16]

@bubble2k16 Where do we put the bios files?

Oh good point, haha, forgot to mention that. It should be inside
/3ds/picodrive_3ds/bios/

The valid US BIOS file names are:
"us_scd2_9306.bin",
"SegaCDBIOS9303.bin",
"us_scd1_9210.bin",
"bios_CD_U.bin"

EU BIOS file names:
"eu_mcd2_9306.bin",
"eu_mcd2_9303.bin",
"eu_mcd1_9210.bin",
"bios_CD_E.bin"

JP BIOS file names:
"jp_mcd2_921222.bin",
"jp_mcd1_9112.bin",
"jp_mcd1_9111.bin",
"bios_CD_J.bin"


If you can't find the BIOS with those file names, you can simply just rename it to any one of the 4 filenames that matches the BIOS's region.

 

[wicksand420]

Thanks man, I'll test it out.

 

[bubble2k16]

Thanks man, I'll test it out.

Just wanted to add that CD games will probably work better on the N3DS.

 

[wicksand420]

@bubble2k16 it actually works pretty good on my end, if you set it to no frame skipping, it plays smoothly, but the audio lags, but i noticed if you load another game while in the emulator, it crashes back to the 3ds menu

Popful mail works really well

 

[Billy Acuña]

Wow, Sega CD running at decent framerate on o3ds???
That was unexpected... :o
Thanks @bubble2k16!!!

 

[Shadow#1]

Hi guys, I'm releasing a quick beta 3dsx version for anyone who wishes to test.

You can download from below.


Edit: Clicked "Post" too quickly. Forgot to add the change log:

v0.92b
- Support for Mega CD. You can actually play Sonic CD on O3DS (but setting frameskip to 1 to 2). It's choppy due to the skipped frames, but playable if you can tolerate that.
- Very minor optimizations and bug fixes for YM2612 FM emulation
- Now saves SRAM
- Sound generation lag resolved (but I'll need someone to tell me if it really sounds better)
- Default frame rate for multi-region games to 60FPS
- Added option to force frame rate to 60/50 FPS
- Fixed screen stretch for H32/H40 games.
- Added more screen stretch options for PAL aspect ratio.
- 6 button support
- And some minor stuff here and there that I forgot.

Aww no .cia

 

[wicksand420]

Aww no .cia

I'm sure that will come soon

 

[brunocar]

Doesn't happen with SNES9X as of the latest update.

really? huh, havent checked on latest, my bad

 

[RocketRobz]

Wow, Sega CD running at decent framerate on o3ds???
That was unexpected... :o
Thanks @bubble2k16!!!

I don't have an O3DS, so thanks for the report!

 

[RocketRobz]

@bubble2k16 https://github.com/bubble2k16/emus3ds/pull/6

 

[wicksand420]

So far I tried a few games and they work really good on o3ds, thanks guys.

 

[RocketRobz]

Oh, forgot to mention that Sub-Terrania and Red Zone (both developed by Zyrinx)'s music play slightly faster than on emulators like Kega Fusion and BlastEm.
I think this is an issue with the PicoDrive core itself, but any chance this can be fixed?

These are the correct speeds.

Sub-Terrania:


Red Zone:


One fix should likely fix both games.