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{{Infoboxemulator|image logo = Newlogo-1-.png|first logowidth = 280|version = {{MednafenVerVersion|Mednafen}}|second active = Yes|third platform = [[Emulators on Windows|Windows]]</br>[[Emulators on Linux|Linux]]</br>[[Emulators on BSD|BSD]]</br>[[Emulators on PS3|PS3]]<br/>[[Emulators on Wii|Wii]]<br/>[[Emulators on GCW Zero|GCW Zero]]|target = Multi[[Apple II line|Apple II]]</br>[[Atari Lynx emulators|Atari Lynx]]</br>[[WonderSwan emulators|Bandai WonderSwan/Color]]</br>[[Game Boy Advance emulators|Nintendo Game Boy Advance]]</br>[[Virtual Boy emulators|Virtual Boy]]</br>[[Nintendo Entertainment System emulators|Nintendo Entertainment System]]</br>[[Super Nintendo emulators|Super Nintendo Entertainment System]]</br>[[PC Engine (TurboGrafx-16) emulators|NEC PC Engine/TurboGrafx-16]]</br>[[PC-FX emulators|PC-platformFX]]</br>[[Neo Geo Pocket emulators|SNK Neo Geo Pocket/Color]]</br>[[PlayStation emulators|Sony PlayStation]]</br>[[Master System emulators|Sega Master System]]</br>[[Sega Genesis emulators|Sega Genesis (Mega Drive)]]</br>[[Sega Saturn emulators|Sega Saturn]]</br>[[Master System emulators|Sega Game Gear]]|fourth developer = Ryphecha, </br>Mednafen Team|fifth website = [httphttps://mednafen.fobbygithub.net io mednafen.fobbygithub.netio]|sixth source = [http://sourceforge.net/projects/mednafen/files/latest/download?source=files SourceForge]|license = GNU GPLv2|bios = [[Emulator_Files#Multi-system|Required]]}}

'''Mednafen''' (an acronym for '''My Emulator Doesn't Need A Frickin' Excellent Name''', formerly '''Nintencer''') is a an open-source, [[Multi-System Emulatorssystem emulators|multi-system emulator]], driven from the command-line. Many of its cores are ports of other emulators, but many of them are also original. Its [[PlayStation emulators|PlayStation]] and [[PC Engine (TurboGrafx-16) emulators|PC Engine (TurboGrafx-16)]] original cores are notable for their high quality, compatibility and accuracy.

Mednafen is an acronym Many of its cores are ports of other emulators; however, many of its cores are also original and are notable for "My Emulator Doesn't Need A Frickin' Excellent Name"their high quality, compatibility and accuracy.<br />

* {| cellpadding="4"|-|align=center|{{Icon|Win-big}}|'''[{{MednafenURL|releases/}} Official release]'''<br/><small>Includes [[source code]]</small>|-|colspan="2"|<hr/>|-|align=center|{{Icon|Lin|BSD}}|[https://pkgs.org/download/mednafen <code>mednafen</code> Package Listing]<br/><small>at pkgs.org</small>|-|colspan="2"|<hr/>|-|align=center|{{Icon|Wii}}|[https://github.com/raz0red/wii-mednafen/releases Source] [https://gbatemp.net/download/wiimednafen.37238 v0.3-SNAPSHOT]<br/><small> Wii port</small>|-|align=center|{{Icon|PS3}}|[https://github.com/aaerox/mednafen-ps3 Source] [https://ps3.brewology.com/downloads/download.php?id=12232&mcid=4 r3]<br/><small>PS3 port (Outdated)</small>|-|align=center|{{Icon|GCWZero}}|[https://github.com/gameblabla/mednafen-gcw Source]<br/><small>GCW Zero port (Outdated)</small>|}  ==Overview==The best cores in Mednafen are those that are original - which are the [[PlayStation emulators|Sony PlayStation]], [[PC Engine (TurboGrafx-16) emulators|NEC PC Engine (TurboGrafx-16)]], [[PC-FX emulators|PC-FX]], [[Sega Saturn emulators|Sega Saturn]] and [[Virtual Boy emulators|Nintendo Virtual Boy]] cores.  The NEC PC Engine core is one of the best emulators for that system, with a Fast and Accurate version. The PlayStation core is native resolution only and features a high degree of accuracy and compatibility<ref>[http://mednafenforum.fobby.net/releasesindex.php?t=msg&th=1114 Mednafen PSX bugs reports]</ref>. The Nintendo Virtual Boy core is one of the best for the system. Some cores improve upon emulators that have been long abandoned and rarely updated. These include the SNK Neo Geo Pocket/Color, Bandai WonderSwan/Color, and Atari Lynx cores. Other cores are less useful, as there are better options in stand-alone emulators (Nintendo Entertainment System, Sega Genesis, Master System, and Super Nintendo Entertainment System). These cores might even be based on out-dated versions. For instance, the Super Nintendo Entertainment System core is based on an old, outdated version of bsnes. This is before the performance/accuracy/ balanced cores — 0.50x territory — with a couple of changes by Ryphecha. It is unknown at this time whether Mednafen's Nintendo Game Boy Advance core is better than [[VisualBoy Advance#VBA-M|VBA-M]] Official releases. Mednafen's Sony PlayStation, NEC PC Engine (Fast, not Accurate, version), SNK Neo Geo Pocket/Color, Nintendo Virtual Boy, Sega Saturn and Bandai WonderSwan/Color emulators are all available as [[libretro]] cores under the name "Beetle", so it might make more sense to use [[RetroArch]] instead. Version 1.31.0 added experimental support for [https://system16.com/hardware.php?id=711 ST-V games] that don't require decryption chips or special hardware. Refer to the [https://mednafen.github.io/documentation/ss.html#Section_stv ST-V section of the official documentation] for more details and a list of explicitly supported games.

|[[Handy]]

|[[Game Boy Advance Apple II emulators|Game Boy AdvanceApple II]]|[[VisualBoy Advance|VisualBoyAdvance]]Original.

|[[Neo Geo Pocket WonderSwan emulators|Neo-Geo PocketBandai WonderSwan/Color]]|[http://www.emuxhaven.net/ NeoPop[Cygne]]

|[[Nintendo Entertainment System PC Engine (TurboGrafx-16) emulators|Famicom NEC PC Engine/TurboGrafx-16 (NESCD)]]|Original. CD-ROM interface based on [https://web.archive.org/web/20190327015916/http://freecodewww.comgeocities.co.jp/projectsSiliconValley-Bay/fceultra FCE Ultra9975/PC2E/english.html PC2E].

|[[Super PC-FX emulators|NEC PC-FX]]|Original. NEC V810 CPU core based on [http://www.goliathindustries.com/vb/ Reality Boy].|-|[[Nintendo Entertainment System emulators|Super NES (Famicom (SNES)]]|[http://fceultra.sourceforge.net/ FCE Ultra]|-|[[higanGame Boy Advance emulators|bsnesNintendo Game Boy Advance]]|[[VisualBoy Advance]]

|[[PC Engine (TurboGrafx-16) Sega Genesis emulators|PC Engine Sega Genesis (TurboGrafx-16Mega Drive)]]|Original. CD-ROM interface based on [http://www.geocities.co.jp/SiliconValley-Bay/9975/PC2E/english.html PC2E[Genesis Plus GX#Genesis Plus|Genesis Plus]].

|[[PC-FX Master System emulators|Sega Master System]] and [[Master System emulators|PC-FXGame Gear]]|Original[https://web. NEC V810 CPU core based on [archive.org/web/20170406033236/http://www.goliathindustriestechno-junk.comorg/vb/ Reality Boysmsplus.php SMS Plus].

|[[PlayStation Sega Saturn emulators|PlayStationSega Saturn]]|Original. Experimental ST-V arcade board support.

|[[WonderSwan Neo Geo Pocket emulators|WonderSwanSNK Neo-Geo Pocket/Color]]|Cygne[[NeoPop]]

|[[Sega Genesis PlayStation emulators|Mega Drive (Sega Genesis)Sony PlayStation]]|[[Genesis Plus GX|Genesis Plus]]Original.

|[[Master System Super Nintendo emulators|Sega Master SystemSNES (Super Famicom)]] and |[[Master System emulatorshigan|Game Gearbsnes v059]]|& Original ([httphttps://cgfm2mednafen.emuviewsgithub.comio/documentation/smsplussnes_faust.php SMS Plushtml SNES Faust])

==OverviewUsing Mednafen==Officially Mednafen has only has a command -line interface, so its that is nevertheless easy to configure and run for users familiar with it. Everyone else can use a [[Frontends#Mednafen|third-party frontend]] for GUI. As with any type of interface might a good text editor like [http://www.notepad-plus-plus.org Notepad++] can be hard to use used to new userschange settings.

The best ===BIOS===Most cores in Mednafen are those that are original - which are do not require any BIOS except for the PS1Sony PlayStation, PCENEC PC Engine CD, PC-FX , and Virtual Boy Sega Saturn cores. The PCE core is one of the best emulators for that system, with BIOS files need to be placed into a Fast and Accurate versionfolder called "firmware" in your Mednafen directory. The PS1 core Mednafen is native resolution onlyvery picky about which BIOS to use, and features high degree but all of accuracy these come with the [[Emulator_Files#Multi-System|Mednafen BIOS pack]] and compatibilityare correctly named.<refgroup=notes>[http://forumMednafen can be forced to accept incorrect bios roms by editing its config file if you absolutely cannot find the correct ones, but this may cause compatibility problems.fobby.net/index.php?t=msg&th=1114 Mednafen PSX bugs reports]</ref> The Virtual Boy core is one of the best for the system.ones that you might need are:

Other cores improve upon emulators that have been long abandoned and rarely updated'''Sony PlayStation'''* SCPH5500. These include the Neobin -Geo Pocket, WonderSwan Color and Atari Lynx cores(NTSC-J) Required for Japan-region games.* SCPH5501.bin - (NTSC-U) Required for North America/US-region games.* SCPH5502.bin - (PAL) Required for Europe-region games.

Other cores are less useful, as there are better options in stand-alone emulators (NES, Genesis, Master System and SNES). These cores might even be based on out-dated versions. For instance, the SNES core is based on an old outdated version of bSNES. This is before the performance/accuracy/balanced cores - 0.50x territory - with a couple of changes by Ryphecha'''NEC PC Engine CD'''* syscard3.pce

It is unknown at this time whether Mednafen's GBA core is better than VBA''NEC PC-MFX'''* pcfx.bios

[[RetroArch]] uses the PS1, PCE, Neo'''Sega Saturn'''* sega_101.bin - Required for Japan-region games.* mpr-17933.bin - Required for North America/US-Geo Pocket, Virtual Boy, region and WonderSwan cores of MednafenEurope-region games.For ST-V games, so it might make sense to use that insteadthe original uncompressed files inside stvbios.zip from MAME romset.

==Using Mednafen=CUE===For most systems, Mednafen only needs the ROM file; but to load PlayStation games, Mednafen requires CUE sheets to know where the music data is pretty easy . Ensure that the CUE sheet is properly set up in order for the game to get up and runningrun. You can use a frontend like medgui. However, a good text editor like See the [[http://wwwCue sheet (.notepad-plus-plus.org/ Notepad++cue)]] is all you need if you need to change settingspage for more info.

===BIOSLoading a game===Most cores do not require any BIOS except for the PS1To load a game in Mednafen, PCE-CD simply drag and PC-FX coresdrop your ROM or CUE file onto mednafen.exe, or if you prefer, you can use the command line. [[Emulator_Files#Multi-System|BIOS files]] need to be placed into a folder called "firmware" in your Mednafen directoryrequires no special commands, such as the desired system. For example, in Windows, the command would look like C:/Emulators/Mednafen is very picky about which BIOS to use/mednafen. The ones that you might need areexe C: '''PlayStation'''*SCPH5500.bin - (NTSC-J) Required for Japan-region games.*SCPH5501.bin - (NTSC-U) Required for North America/US-region games.*SCPH5502.bin - (PAL) Required for Europe-region gamesRoms/Nintendo/battletoads.nes

'''PCE-CD'''===m3u playlist files===*syscard3[[File:M3u_example.pcepng|thumb|right|206px|An example of a .m3u for Valkyrie Profile]]To automatically load the next disc of a game, you will need a .m3u file. To make one, simply create a text file and name it after your game. Within the text file, write the names of the .cue sheets for your game discs as such:

'''PC-FX'''*pcfxGame (Disc 1).romcue

All of these come with the [[Emulator_Files#Multi-System|RetroArch BIOS pack]], and are correctly namedGame (Disc 2).cue

===CUE===For most systems, Mednafen only needs the rom file; but to load PS1 games, Mednafen requires CUE sheets to know where the music data is. Ensure that the CUE sheet is properly set up in order for the game to run. See the [[Cue sheet Game (Disc 3).cue)]] page for more info.

===Loading a game===To load a game in Mednafen, simply drag Save the .txt file and drop your rom or CUE then change the file onto mednafenextension to .m3u. Run the .exe, or if you preferm3u, rather than the .cue of the first disc and the first disc will load. When you can use get to the command line. Mednafen requires no special commandsend of that disc, such as the desired systemnext disc will be automatically loaded. For examplethis method to work, shared memory cards (see below) must be used for the games in Windows, the command would look like C:/Emulators/Mednafen/mednafen.exe C:/Roms/Nintendo/battletoadsplaylist.nes

===Dual Analog Controllers analog controllers with PS1PlayStation===

===Configuring Controlscontrols===

===Graphical Enhancementsenhancements=======Sprite Limitlimit====This is a feature on older systems, due to hardware limitations, that makes it only display so many sprites could be on screen at the same time. Most systems got around this limitation by alternating which sprites were on the screen each refresh, causing the sprite to flicker. Mednafen's default settings are true to the original system limits,  but this can be disabled in the .cfg file. Here is the list of options from the .cfg file to change from 0 to 1 if you don't wish to have the limit.

*[{{MednafenURL|documentation/nes.html#nes.no8lim}} nes.no8lim]*[{{MednafenURL|documentation/pce.html#pce.nospritelimit}} pce.nospritelimit]*[{{MednafenURL|documentation/pce_fast.html#pce_fast.nospritelimit}} pce_fast.nospritelimit]*[{{MednafenURL|documentation/pcfx.html#pcfx.nospritelimit}} pcfx.nospritelimit] ====Width size corrections====Some cores have a wrong width resolution, doubt if this is a bug and even less a problem, but if you want some pixel perfect (to see better horizontal scrolling for example) you must disable Correct aspect ratio in these cores: * md.correct_aspect 0* nes.correct_aspect 0* pce_fast.correct_aspect 0* snes.correct_aspect 0* snes_faust.correct_aspect 0* ss.correct_aspect 0 Here is also a little list of the cores without an correct_aspect setting but its width is still wrong, so changing its xscale values will give pixel perfect.These cores (except PC-FX) also have a boolean setting called h_overscan which if it's enabled (1) some overscan (which is most known as black bars) on both sides will appear, but width size is still inaccurate.All values are replaced from 1X scale, if you want 2X or 3X scale, multiply it with a calculator. * PCE / PC-FX: 0.888888888888888* PC Engine (h_overscan 1): 0.875* PlayStation (h_overscan 0): 1.092715231788079* PlayStation (h_overscan 1): 1.09375 <gallery>File:mednafenpsxbefore.png|2.0X scaleFile:mednafenpsxafter.png|2.1875X scale</gallery>

Searching for new cheat codes is also possible. The general idea being comparing variables, going back to gameplay so that this variable changes , then back to the cheat engine searching for any variables that changed in that particular way. For example:* '''Infinite Health / Ammo / Time / Money:''' you start with 5 hearts, reset search (in the cheat engine, not reset the game you silly!), you get hurt to 4 hearts, search variables that decreased, get healed back to 5 hearts, search variables that increased, and so on. For the money , you can start with 0 when you have 0 gold and try earning/spending money. You could try using save states as well when you don't have as much freedom changing the value.

* '''Walk Though Through Walls / Invincibility / In-game Cheats & Features :''' you need to find the value that tells the character if he can move or not (he can't really move when walking against a wall) / if he's blinking or being invincible right now after getting hurt. Same methods as before, but there are hints that could be useful here -- both states could be 0/1, or something else... for example, one could assume 0 is not enabled and 1 is enabled.

* # '''1) O==V1 && C==V2 :''' if you know the explicit numerical values for the variable , you write it here. First The first time, just write the same value in both. Subsequent times, leave O blank and press Enter so that you don't write the old value again, and write the current value under C.* # ''' 2) O==V1 && |O-C|==V2 :''' same, but instead of writing the current value you write by how much it changed (0 if old value equals new value)* # '''3) |O-C|==V2 :''' you write by how much it changed (0 if old value equals new value)* # '''4) O!=C :''' if old value doesn't equal new value* # '''5) Value decreased :''' if new value smaller than old value* # '''6) Value increased :''' if new value bigger than old value

===Further Readingreading===http://mednafen.fobby.net/* {{MednafenURL|documentation/}}

Here's the full documentation: http://mednafen.fobby.net/{{MednafenURL|documentation/fname_format.txt}}

Emulation bugs, crashes , and save states can corrupt your memory card data.

Mednafen creates memory card files for each individual game, in contrast to [[PCSX-RReloaded]]/[[ePSXe ]] where all game saves are stored into 2 memory card files. To transfer memory card files from PCSX-RReloaded/ePSXe to [[RetroArch]]:

*Start the game in RetroArch.* Go to the system folder. Copy the names of the .mcr files created for the game.* Delete them.* Rename the files you want to transfer with the names of the RetroArch memcard files.* Place the new ones in the system folder.

*Go to system folder. Copy the names of the .mcr files created for the game====Using Memory Card Manager 1.4====

*Delete themAnother option is to use Memory Card Manager 1.4 to extract a separate game saves from a shared memory card file.

The utility has support for next memory card formats: *Rename the files you want to transfer with the names of the RetroArch memcard files.mem, *.mcd, *.mcr, *.gme, *.ddf, *.psx, *.ps, *.psm, *.vmp, *.VM1

*Place [[File:memory_card_manager.png|400px]] It allows to transfer each of the new ones in game saves from a shared memory card to a .mcr memory file used by Mednafen. As it was described above, you just need to start game and check for '''sav''' folder inside Mednafen system directory. Open with Memory Card Manager 1.4 the memory file created for your game by Mednafen and open the system shared memory card file from which you wish to transfer a save entry. When there would be a dialogue 'Do you want to replace 'SAVE_ENTRY_NAME' click 'Yes' and then save the file to the '''sav''' folder(the older one should be replaced).

*[http://sourceforgeSee our dedicated frontends page.net/projects/medgui/ Medgui] (Windows)

*[https==Netplay==Cores that work with netplay://code.google.com/p/mednaffe/ Mednaffe] (Multi-platform)

==NetPlay==Cores that work with NetPlay:*NEC PC Engine (TurboGrafx-16)/PCPCE-CD (TG-CD)/SuperGrafx (option for both accuracy and fast cores)*NEC PC-FX*NESNintendo Entertainment System*Sega Genesis*Sega Master System*SNESSuper Nintendo Entertainment System*Sony PlayStation* Sega Saturn (experimental)

{| class="mw-collapsible mw-collapsed wikitable" style="width: 100%;"! colspan=2 width="250"|Review

*You can make and load savestatessave states*Netcode allows for people to join a game that's already in session*In-game chat*Playing it fullscreen full-screen works (sometimes)

*Command-line only (you can use a frontendthankfully, thoughdedicated front-end GUI for this multi-emulator exists)*Weird, convoluted settings (or lack thereof)*SNES Super Nintendo Entertainment System emulation will can be slow to you if you're on a low-end computer (uses bsnes core)*Sony PlayStation core is inexplicably accurate but slow (haven't checked to see what core it uses, but probably has one that's focused on accuracy)*Only supports 2 Players players on Genesis.*Frontend doesn't always save settings correctly.*Frontend defaults to detecting compressed ROM archives instead of the actual ROMs (you can still load uncompressed ROMs by selecting "All files *.*" from the dropdown menu).No CHD file support

{| class="mw-collapsible mw-collapsed wikitable" style="width: 100%;"

It's recommended that you [http://sourceforge.net/projects/medgui/ download a frontend]#Run MedGui.exe#You'll get a small window. On your left, you'll see two arrow buttons with a console/handheld icon in between. Choose your desired platform.#Click the button with the blue lightning icon and look for the folder that contains your game(s). The emulator looks for compressed archives by default, but you can still load uncompressed files by clicking on the drop down menu.#Pick your game.#Click the button with a checkered red ball and joystick to start the game.#You'll then (very likely) get a message an update prompt. Click Yes, and wait.#Start the game. If it asks you to update again, ignore it and restart the emulator.#While the game is loaded, press ALT + SHIFT + 1 to map your controller. You'll get several options per button (for example, UP 1, UP 2, UP 3, etc.). Just map the first one to your controller, and the rest to a key you'll never press. You will have to repeat this step for every emulator core.#Close the emulator.#Click the arrow button on the right side of the window. It should expand it.#Click Advanced Mode.#Click the tab called Media/Network/Utility.     

#In the Netplay-Server section, you have the following options:#*"Max Clients", as in, the number of people that can connect to your server (not necessarily players; theoretically you can use this as a makeshift stream)#*"Conn. Timeout" which is the number of seconds you'll allow for your clients to attempt establishing a connection#*"Port" where you'll choose one an open TCP/UDP one#*"Password" which you can establish or leave blank#When you're done fiddling with your settings, click Create standard.conf#Click Create Server. A cmd window will appear.#Click My IP to obtain your external IP address, and share it along with your port to your friend(s).#Launch the game.#Press T, and type /server localhost.#Wait for other people to connect.     

#In the Netplay-Client section, you have the following options:#*"Host", which is the server's IP you'll connect to#*"Port, which is the one used by the server (which you should also have open on your end).#*"Password", blank if there is none.#*"Nickname" where you type whatever you want.#*"LocalplayerLocal player" is the number of players that will also be playing from on one computer.#*"Small font" which makes the chat font smaller.#When you're done fiddling with your settings, launch the game.#Press T, and type /server IP_goes_here.      

There are way too many settings, commands , and features to list, so take a look at the emulator's documentation.

* [http://fantasyanime.com/emuhelp/emuhelp_mednafen.htm Mednafen Tutorialtutorial]* [https://formulae.brew.sh/formula/mednafen MacOS instructions]

[[Category:PC-FX emulators]][[Category:Neo Geo Pocket/Neo Geo Pocket Color emulators]][[Category:Game Boy /Game Boy Color emulators]]

[[Category:NetPlaySega Saturn emulators]][[Category:Virtual Boy emulators]][[Category:WonderSwan emulators]][[Category:Netplay]]

[[Category:OS X BSD emulation software]]