DSonPSP beta 3 - Nintendo DS Emulator for PSP

**Yoshihirox** · August 26th, 2009, 18:34

No one exist but it's wierd because on my fat psp i got a better speed like under DBZ title screen 15Fps but all other i've asked with a pspslim the game can only run at 11FPS max .

**Sektor** · August 26th, 2009, 18:34

The PC version of desmume doesn't even do dynarec yet.

**Mr. Shizzy** · August 26th, 2009, 18:43

Originally Posted by Yoshihirox

No one exist but it's wierd because on my fat psp i got a better speed like under DBZ title screen 15Fps but all other i've asked with a pspslim the game can only run at 11FPS max .

yoshi, first of all thanks for working on the PSP again. I know you are a knowledgeable and respected dev in the community.

Odd how you say it performs so much worse on PSP SLIM. I have a SLIM, so I'll post my results when I get the time to do some testing. Also, I'll have a look over the source, to see if my eyes can see anything.

Any plans of a SLIM specific edition, that allows for the SLIM's extra memory to be used?

**Yoshihirox** · August 26th, 2009, 18:53

Originally Posted by Mr. Shizzy

yoshi, first of all thanks for working on the PSP again. I know you are a knowledgeable and respected dev in the community.

Odd how you say it performs so much worse on PSP SLIM. I have a SLIM, so I'll post my results when I get the time to do some testing. Also, I'll have a look over the source, to see if my eyes can see anything.

Any plans of a SLIM specific edition, that allows for the SLIM's extra memory to be used?

yes that can be done i will see if i can enable an auto detection with kubridge the get model function

***wraggster*** · August 26th, 2009, 19:00

i wonder if the extra memory will provide much of a speed boost ?

would exophases GBA dynarec be of any use to this emulator , (do i sound like a noob or what :P)

**Yoshihirox** · August 26th, 2009, 19:11

Originally Posted by wraggster

i wonder if the extra memory will provide much of a speed boost ?

would exophases GBA dynarec be of any use to this emulator , (do i sound like a noob or what :P)

Like that not really need to be rewrite for teh arm9 because the arm9 it's different CPU and i dont know if it's a good idea to run a a ARM7 dynarec in same time with a arm9 dynarec because the DS use 2 CPU but only one arm9 dynarec can really help

**Sektor** · August 26th, 2009, 19:12

DS emulators don't really need as much RAM as GBA emulators or any system that loads data from fast ROM since the DS loads files from a slow file system, no faster than a PSP memory stick duo.

Emulating an entire ARM7 isn't really needed since official DS developers aren't allowed to change the ARM7 binary. The ARM7 handles touchscreen, wifi and sound. All of those don't need to be emulated fully at this early stage.

***wraggster*** · August 26th, 2009, 19:23

hm, could the memory stick on PSP be used as virtual memory for the DS Emulator, im sure some app or emulator actually uses the mem card (unless im mistaken

)

**Sektor** · August 26th, 2009, 19:27

No need for virtual memory, DS has 4MB RAM and PSP phat has 16MB. A swap file on a flash device would also wear it out with too much writing.

I guess you might need the 32MB in the Slim if you wanted to emulate a DS with a RAM expansion and run Opera web browser or something crazy like that. There's always some use for more RAM.