DeSmuME PSP Unofficial Useless Edition - Nintendo DS Emulator for the PSP

**elvandar** · May 31st, 2008, 15:18

Originally Posted by Sektor

This is a really slow Nintendo DS emulator for Sony PSP.

I made some minor changes to SofiyaCat's release:

Made sound optional
Added controls
Enabled FPS counter
Set CPU to 333Mhz
Added exit callback

It's still painfully slow (usually under 3.5 FPS). I don't have the knowledge to speed it up. It would require a major rewrite to get over 20 FPS.

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Controls:

PSP_CTRL_CIRCLE = A
PSP_CTRL_CROSS = B
PSP_CTRL_SELECT = Select
PSP_CTRL_START = Start
PSP_CTRL_DOWN = Right
PSP_CTRL_UP = Left
PSP_CTRL_RIGHT = Up
PSP_CTRL_LEFT = Down
PSP_CTRL_RTRIGGER = R / toggle touch
PSP_CTRL_LTRIGGER = L
PSP_CTRL_TRIANGLE = X
PSP_CTRL_SQUARE = Y

Analog nub for moving touch position (I didn't bother to add a cursor)
Table Hockey Tech Demo has a cursor built in, so you can "play" it at around 3 FPS

1.5 firmware:
Copy __SCE__DeSmuME_Useless and %__SCE__DeSmuME_Useless to ms0:/psp/game

3.x M33 firmware:
Copy DesmuME_Useless folder to ms0:/psp/game

NDS file must be named test.nds and in the same folder as eboot.pbp
You don't need any bios files.

Credits:
YopYop156, evilynux and DeSmuME team for creating this DS emulator
SofiyaCat/NekoMiMi for porting DeSmuME to Sony PSP
Everyone who contributed to the PSP toolchain/libs and anyone else I forgot
Sektor for creating the Useless Edition fork (modified main.c and ctrlssdl.c)

Links:
SofiyaCat's site: http://nekomimi.cafe.coocan.jp/wiki/...C3%D6#a24210f3
Sektor's site: http://GTAMP.com/PSP

Compatibility listing here. Many games won't even start and the ones that do start take minutes to load. It's too slow to be any fun.

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how to put on games ????

**KillerDodds** · June 2nd, 2008, 02:32

If someone could just get a full version of that to play on the PSP, it would be awsome, its simple game, just needs someone who knows that hacking stuff, i don't. i want to tho, anyways, someone try that, it would be awsome.!

**fook123** · June 3rd, 2008, 11:14

Originally Posted by elvandar

how to put on games ????

NDS file must be named test.nds and in the same folder as eboot.pbp
You don't need any bios files.

**spannernick** · June 4th, 2008, 17:49

Anyone else working on this.?

What do you need the compile the source to a eboot file.

I have devkitpro with devkitPSP..?

May be a broswer could be added so you can pick what nds file to run..?

Oh and a cross as the pen on the touchscreen.

**dodoX** · June 28th, 2008, 09:36

what is psp_control_circle

**Sektor** · June 28th, 2008, 10:03

The circle button

Spannernick, you can compile it with devkitPSP. You don't have to compile SDL since the SDL binaries are included with DeSmuME PSP.

**dodoX** · June 28th, 2008, 14:07

what is control_psp_circle, can you translate for me

**dodoX** · June 28th, 2008, 14:08

i dont understand

**Sektor** · June 28th, 2008, 14:38

The PSP has buttons with shapes printed on them (Square, triangle, circle and cross). The circle is the round object that looks like an O.

PSP_CTRL_CIRCLE is just what the buttons are named in the PSP devkit. I was lazy and just copy and pasted the controls from my code. All you need to know is that to push the A button in the emulator you push O (circle) on the PSP.