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

**xg917** · August 14th, 2007, 21:49

i would love to hear strmnnrmn's opinion over the idea though.

**Sektor** · August 14th, 2007, 22:46

Emulating the CPU and video hardware is the slowest part. I doubt the BIOS routines are much of a bottleneck.

**acn010** · August 14th, 2007, 23:14

CPU is the problem

**RunawayPrisoner** · August 14th, 2007, 23:21

Actually, HLE BIOS (which also means... built-in BIOS) would boost things up a bit more than reading the BIOS from a dumped file. Exophase said it himself that gpsp would benefit a bit from that, too... but since it's not that drastic a difference... and it's too much hassle, he doesn't want to try that yet.

**maxipower90** · August 15th, 2007, 04:33

btw when i load this thing up it goes into some sound test mode or something, what is that? to tell the truth i couldnt be bothered downloading roms as my internet has been screwing me about the last few days, i cant seem to download big files or small files like pics but i can download download meduilm filesizes like songs, WTF haha

**xg917** · August 15th, 2007, 05:14

hey i dont understand how to use the touch screen on this thing. lol. r trigger? is R and the touch? how do you toggle to touch

**Sektor** · August 15th, 2007, 06:36

I didn't add a cursor and I did something wrong since it doesn't move the ball in the touchtest demo included with devkitpro. It's just for skipping a title screen that can't be skipped with start button (tap R a few times) and controlling the Table Hockey game (use analog nub to drag the arrow over the paddle/puck/thing).

The sound test is a homebrew example for playing sound. I included it to add to the novelty and show that it can play some sounds fairly well (even better if I disable the drawing routine completely).

**Exophase** · August 15th, 2007, 15:59

Originally Posted by Sektor

Emulating the CPU and video hardware is the slowest part. I doubt the BIOS routines are much of a bottleneck.

Non-HLE BIOS routines = CPU, whether or not HLE emulation benefits depends on how much the routines are used (and of course, how well the HLE is written). For an emulator WITHOUT dynarec the HLE routines always be much faster (unless you reeeally botched them), but without dynarec the thing is uselessly slow anyway.

Anyway, I'm pretty sure this emulator is already using HLE BIOS (there goes anything QJ.net was rumbling about it being illegal)