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Nintendo DS emulators

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Nintendo Wi-Fi connection: proper noun
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The '''[[gametechwikipedia:Nintendo DS|Nintendo DS]]''' (NDS) is a handheld console produced by Nintendo on November 21, 2004 and had 2 ARM CPUs (ARM9 and ARM7) with 4MB of RAM. The main selling point was the use of dual screens for gameplay, with one being a touchscreen. It is the only console to have come close to the [[PlayStation 2 emulators|PlayStation 2]] in lifetime sales (154.02 million units), as a result of attracting a large amount of casual players, and even non-gamers, into the gaming community.
==Emulators==
* [https://emucross.com/the-next-generation-of-ds-emulators/ Looking Toward the Next Generation of DS Emulators] (By [[Dolphin]] tester, [https://dolphin-emu.org/blog/authors/JMC47/ JMC47], AKA Justin M. Chadwick. 5 June 2017. Tested emulators: melonDS (0.2 and 0.3), medusa (Alpha 2) & GBE+ (1.1) compared to the mature DeSmuME.)
===High Resolutionresolution===
;melonDS: Has added support for OpenGL renderer and upscaling as of version 0.8.<ref name="melondsopengl">http://melonds.kuribo64.net/comments.php?id=90</ref> The renderer is much faster than DeSmuME's and supports increasing the internal resolution up to 8x native resolution. More features such as texture filtering are planned.
;DeSmuME X432R:A fork of DeSmuME, that has many more graphical enhancement such as an option to increase internal resolution and use MSAA. The devs of DeSmuME have now included an option for increased internal resolution (see below), making X432R outdated. See the [[DeSmuME]] page for more details.
The major challenge with emulating multiplayer functionalities is timing inaccuracies, which have made many projects, such as DeSmuME, not want to implement them. So far, the only emulator to actually make any progress is melonDS, but even that is still under development.
===Local Wireless Communicationwireless communication===
Players who have a copy of the same game can link together using the DS' wireless signals (given that the game offers this feature).
There was a third-party DeSmuME forks that successfully emulated WFC but has quite a bit of requirement (Ethernet cable, though this can be circumvented with external software). After the service shutdown, there was a version compatible with the fan servers (restoring all DLC data but sadly most multiplayer games had their content lost forever). melonDS is one of the only emulators to offer Wi-Fi capabilities. It's still a work-in-progress, but it works relatively well.
===DS/Wii Connectivityconnectivity===
Uses the wireless communication on the DS to connect to the Wii. The idea is parallel to the GBA Link Cable for the GameCube, and just like the Link Cable, only a handful of games actually have this feature. Some notable examples are ''Final Fantasy Crystal Chronicles: Echoes of Time'' which is essentially the same as the DS port but can connect with other DS' with the game, ''Pokemon Battle Revolution'' in which players could transfer their Pokemon to the game and use the DS as a controller, ''Animal Crossing: City Folk'' in which data could be transferred between the DS version ''Animal Crossing: Wild World'', and the ''Nintendo Channel'' on the Wii where players could download demos of DS games to their console using Download Play (basically the same idea as the Download Station kiosk).
So far, no emulator has been able to emulate this feature, nor have attempted to, and considering that the GBA/GCN connectivity on Dolphin has yet to achieve full functionality (and a lack of interesting titles that uses it), hints that this feature won't be emulated for a while. If this was ever going to be emulated, it would require work on both ends.
===GBA/DS Connectivityconnectivity===
Inserting a GBA cartridge in the Slot-2 of the Nintendo DS while a game is running can unlock various gameplay features for [https://nintendo.fandom.com/wiki/List_of_Nintendo_DS_games_with_GBA_connectivity several DS games].
{{Main|Nintendo DSi emulators}}
==Special Hardwarehardware==;Guitar Hero Padpad: Used in the "Guitar Hero: On Tour" series (required) and Band Hero DS. Supported by DeSmuME (Slot 2).
;Piano for Easy Piano: Supported by DeSmuME (Slot 2).
;Taito Paddle Controllerpaddle controller: Compatible with Arkanoid, Space Invaders Extreme, Space Invaders Extreme 2 and Space Bust-a-Move. Supported by DeSmuME (Slot 2).;Tilt Sensorsensor: Used in "Tony Hawk's Motion/Hue's Pixel Painter." No emulators support this add-on yet. (Slot 2);Rumble Packpack: Supported by DeSmuME (Slot 2). Requires compatible Joystick.;Slide Controllercontroller: Required by "Slide Adventure Mag Kid". Yasu made a shoddy [http://home.usay.jp/pc/etc/nds/iDeaS_slide.zip plug-in] for iDeaS (recommended version was 1.0.2.9.) to try to emulate it. No emulators support this add-on at the moment.;Pokémon Keyboardkeyboard: Bundled with the Pokémon Typing game (JP/UK/FR). The game refuses to boot without a keyboard, but it can be run on emulators with an anti-piracy fix and another DeSmuME-specific save bug fix. There is also [http://pokemonlog.com/pokemon-fuligin-download-rom/ a pre-patched ROM.] While it's playable using the on-screen keyboard on the lower screen, the keyboard isn't actually emulated. There is [https://github.com/AnimeCommander/Learn.With.Pokemon-Typing-Adventure.lua/blob/master/Pok%C3%A9mon%20Typing%20DS%20Keyboard%20Script.lua a Lua script] that permits using the actual keyboard by mapping presses of the actual keyboard to taps of the virtual Touch Screen. However, you are going to need to blank out all the control/hotkey bindings of DeSmuME if you are going to play this game because some of the keyboard keys also activate some controls; otherwise, pressing the Q key would also pause the game, given one example. A recommendation would be to have a separate copy of 32-bit DeSMuMe which purpose is playing *only* the Pokémon typing games. In that copy, place the patched ROM, the Lua script, and a 32-bit version of [https://sourceforge.net/projects/luabinaries/files/5.1.5/Windows%20Libraries/Dynamic/ lua51.dll.] (The platform used in building the <code>.dll</code> should not matter.) Even then, not only is the emulated workaround a little slow, but saving is still broken. Use savestates, instead.;DS Cameracamera: Accessory bundled with the Japan-only Face Training (a European localization for Christmas 2007 was canceled, and it was released as a retail DSi game in 2010 using the internal camera rather than the original accessory). Not to be confused with the built-in DSi camera. No emulators exist for it at all.
;Bayer DIDGIT: A glucose meter for diabetic children with a game called ''Knock 'Em Downs: World's Fair'' that rewards them for checking their blood sugar levels regularly. The game has been dumped but no support for the glucose meter peripheral exists as of the time of this writing; it may, however, be possible to add reward points through Action Replay codes, not to mention that the game will still function without the glucose meter attachment anyway (albeit with reduced functionality, of course).
===iQue DS Region Lockregion lock===
iQue is Nintendo's Chinese subsidiary (previously a partnership between them and Wei Yen until 2013), so when they released the DS with a few localized games, their ROMs had special flags set in them to check if the hardware that ran the cartridge was iQue's or Nintendo's as a sort of region lock. Nintendo's own hardware would fail this check, throwing an "Only for iQue DS" error in white text on a black background. No other DS games have this mechanism; not even for Korean releases. This region lock is bypassed by the 3DS for these DS games, even though 3DS games have their own region lock. It's weird.
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