NeoDS v0.1.0 - 模擬器

4-29-2008

A Neo-Geo emulator for the Nintendo DS, as its the first release
here's all the info you'll want:

- Currently emulated:
- M68000 cpu (cyclone)
- Z80 cpu (DrZ80)
- All forms of NeoGeo protection/encryption
- Graphics
- ADPCM audio
- PSG audio

Not emulated:

- FM audio
- Raster effects
- Multiplayer
- Some timings are not that accurate

FM audio has already been done in jEnesisDS, so it is possible
in theory. It will be hard to squeeze it into NeoDS, as both
the ARM7 and ARM9 are pretty busy. But I will try. Most of the
graphics in NeoDS are drawn with textured quads. Emulating
raster effects using this method would require more polygons
per frame than the DS is capable of (as far as I can tell). It
may be possible to emulate raster effects using the DS 2D
hardware, but there are lots of reasons why this would be
difficult.

USING THE EMULATOR
Required:

- Nintendo DS (lite)
- DLDI compatible flash card

First, you need to patch NeoDS.nds for your DLDI flash card
(NOTE - not all flashcards require patching). See here:
http://chishm.drunkencoders.com/DLDI/index.html.

Please don't email me for help about this, there are plenty
of places online that explain how this works.

Next you will need to convert some NeoGeo roms (mslug.zip for
example). You also need a bios rom (neogeo.zip). NeoDS uses
the same rom sets as MAME, so make sure your games work in
MAME before proceeding. Put all the roms you want to convert
along with the bios together in a folder. Copy NeoDSConvert.exe
into the same folder. Run NeoDSConvert, and it will convert
all the NeoGeo roms in that folder. The converted roms will
have the *.neo extension.

Copy the DLDI patched NeoDS.nds, and all the *.neo roms into
the root of your flashcard. Run NeoDS.nds. The main menu
should load, showing you a list of all the roms on your card.
Use the arrow keys to select, and press start to choose. The
rom should load, and you should be playing. You can load a rom
without audio which will improve frame rate, but you won't get
any sound (obviously). Once a game is loaded without audio,
the only way to get audio back is to reload the game. Some
games will freeze with audio disabled, so be warned!

Controls:

[Arrow keys] - Arrow keys
[A, B, X, Y] - NeoGeo face buttons
[Start] - Start
[Select] - Coin

The NeoDS gui is controlled with the stylus.

- Video - Video can be normal or scaled. Normal is a cropped
screen. Scaled shows the full screen, but scaled down to fit.
- CPU Clock- The NeoGeo cpu can be underclocked. This can
actually make some games run faster! It is easier for NeoDS
to emulate a slower cpu, and some NeoGeo games don't use the
full cpu power anyway. Experiment and see.
- Screen Off - The lower screen can be turned off. Touch anywhere
to turn it back on.
- Load rom - Load a new game
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下載：http://0rz.tw/e844r

官方：http://groups.google.com/group/neods

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