Download

Please Download the newest version of NeonDS from Download Page. The current uptodate version is 0.2.0.

Setup

Version 0.2.0 requires your system to have OpenGL 2.0 or above. You can check your OpenGL support status using this small tool: glview

Run

In the application main window, click menu item "File" -> "Open" to load NDS ROM file (.nds). Compressed ROM files are not supported, you must uncompressed them first. Please also make sure you are using CLEAN ROM, encrypted ROM files won't work.
Choose a correct save type in the next message dialog:

Game save won't work properly if you did not choose a correct save type.
Now, you can click on the "Run" button in the main window to start the emulation:

Config

The follow configuration options are listed in the "Config" Menu:


"Limit 60fps" will force the emulator runs at 60 frames per second (real NDS hardware speed).
"VSync" will force the emulator to synchronize display refresh with monitor vertical sync signal.
"2x display" will zoom the display window 2 times bigger.
"Space In Screens" whether to display a space in two screens.
"NEAREST filtering" using NEAREST texture filter mode, you'll get more clear display images.
"LINEAR filtering" using LINEAR texture filter mode, you'll get more smooth display images, especially useful if you set the display mode to be zoom 2 times bigger.
"Enable hash Texture Cache" In most cases you should keep this options checked, to have faster emulation speed in 3D games. In cases the emulator crashes or display incorrectly in some games, you can try disable this option.
"Firmware settings" set some configurable parameters in NDS firmware. You need to restart the emulator to make the changes effective.

Controls

Mouse click on the bottom screen will emulate touch screen operations.
You can use either keyboard or DirectInput joystick as the gamepad input, the default keyboard mapping is listed below:

PC keyboard	NDS keys
W	up
S	down
A	left
D	right
J	A
K	B
U	X
I	Y
Y	L
O	R
1	select
2	start

To configure keyboard or joystick mapping, go main menu "Config" -> "Input Config".

Features List

Implemented Features:	Unimplemented Features:
ARM9 and ARM7 CPU MMU, IO, IPC, timers and DMAs NDS rom cartage and save ram Touch screen and keypad inputs 2D background display, scroll and alpha blend 2D background rotate and scale Sprites display, rotate and scale 3D display engine Real time clock	2D sprite window, master bright, fade in/out Sound Wifi

Information for old versions

In version 0.1.0 and later, NDS BIOS files are no longer required for running games. Click here for information on how to setup bios files for NeonDS older versions.
In version 0.1.1 and later, DirectX is no longer required. Click here for information on how to setup DirectX for NeonDS older versions.

BIOS Setup

In order to have better game compatibility, NeonDS version before 0.1.0 requires the original NDS bios files. Please search and download the bios files and put the two bios files in the same directory as NeonDS.exe and named as "bios7.bin" and "bios9.bin".You'll get the files like the following picture shows:

DirectX setup

Before trying to run NeonDS version before 0.1.1, please make sure you have the newest version of DirectX9 installed. If the directX version is not so up-to-date, you may get error message complaining missing dll file "d3dx9_31.dll". In such case, you can try search and download this file from your favorite search engine and put the file in your system driver "windows\system32" directory.

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