Homebrew [WIP] 3DeSmume (DS emulator for 3DS)

[Pandaxclone2]

I wake up to 13+ pages in my face and sifted through all of them up to here. I knew you weren't lying @shutterbug2000 and I hope this project gets better from here on out.

 

[Giodude]

so is there any vid of this in action?

 

[Deleted User]

so is there any vid of this in action?

Soon™

 

[blubberbernd]

Try this out then:

#define BGR5A1_RGB5A1(src)  ((src & 0x7C00) >> 10) | ((src & 0x1F) << 10) | (src & 0x83E0))

Sorry for my noob question, but don't bitwise operations edit the initial value, so you'd need one copy of src each for every color channel you're switching around?

#define BGR5A1_RGB5A1(src) {
scr1=scr;
scr2=scr;
scr3=scr;
((src1 & 0x7C00) >> 10) | ((src2 & 0x1F) << 10) | (src3 & 0x83E0))
}

 

[MasterFeizz]

Sorry for my noob question, but don't bitwise operations edit the initial value, so you'd need one copy of src each for every color channel you're switching around?
So

#define BGR5A1_RGB5A1(src) {
 
((src1 & 0x7C00) >> 10) | ((src2 & 0x1F) << 10) | (src3 & 0x83E0))
}

No, those bitwise operators don't change the source they just return the value of the operation.

 

[DiscostewSM]

What is the bit order for the format used in the emulator? If I recall correctly from blargSNES, 3DS's RGB5A1 format is structured like so.....

15-------------0
rrrrrgggggbbbbba

 

[Kyoni]

Sorry for being rude but here's my question: Why create a DS emulator on the 3DS (ported from the PSP) when both the old and new 3DS can already play DS games? I apologize if this question has been answered.

 

[theskipster]

Sorry for being rude but here's my question: Why create a DS emulator on the 3DS (ported from the PSP) when both the old and new 3DS can already play DS games? I apologize if this question has been answered.

People want to be able to just drop a rom onto their SD card and play. That way, no cartridges are required.

 

[Deleted User]

Sorry for being rude but here's my question: Why create a DS emulator on the 3DS (ported from the PSP) when both the old and new 3DS can already play DS games? I apologize if this question has been answered.

You need a flashcart like an R4 to play DS games atm With something like this you can play them right from your SD card

 

[GBAFail]

Sorry for being rude but here's my question: Why create a DS emulator on the 3DS (ported from the PSP) when both the old and new 3DS can already play DS games? I apologize if this question has been answered.

Save states, no flashcart, cheats, etc...

 

[Giodude]

Soon™

i would test it myself but my 3ds is still broke. ;(

 

[jailminer]

Why wasn't this the first thing we have done? Was it simply not possible a year ago?

 

[zoogie]

Save states, no flashcart, cheats, etc...

Add - fix that shitty blur filter.

 

[jailminer]

i would test it myself but my 3ds is still broke. ;(

Let someone test it.

 

[ShadowOne333]

Add - fix that shitty blur filter.

Rendering scale, that shit is awful for 3D models.
Also upscaling the 2D images would be nice as well.

 

[jailminer]

Sorry for asking, and if this has already been asked sorry, but does audio work at all?

 

[itsthenavy]

Add - fix that shitty blur filter.

It's pixel interpolation, not a blur filter. The 3DS and NDS native resolution are not the same, so it has to scale up NDS games. We'd prefer nearest-neighbor interpolation, but Nintendo probably uses bilinear or bicubic. Blur filter makes it sound like they scaled it "cleanly" and then blurred it after as some sort of effect.

But yes, with an emulator we can have nearest-neighbor interpolation instead of blurry garbage.

 

[DarkRioru]

can it be patched with dldi for ds homebrews?

 

[Shubshub]

Here is an image:

Spoiler

Is that 256 Colors? Neat =D
I would try this out if I had a New 3DS

 

[DiscostewSM]

Sorry for being rude but here's my question: Why create a DS emulator on the 3DS (ported from the PSP) when both the old and new 3DS can already play DS games? I apologize if this question has been answered.

Sometimes, people just want to see if it can be done. That's what drove me to make MM2 PTC.