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* {| 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PS3 port (Outdated)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GCW Zero port (Outdated)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 Mednafenare 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]] Official releases, [[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://forum.fobby.net/index.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 For instance, the Super Nintendo Entertainment System core is based on an old, outdated version of bsnes.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]]. 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.
==Overview==
Mednafen only has a command line interface, so its interface might be hard to use to new users.
The best cores in Mednafen are those that are original - which are the Sony PlayStation, NEC PC Engine, PC-FX, Sega Saturn and 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://forum.fobby.net/index.php?t=msg&th=1114 Mednafen PSX bugs reports]</ref> The Nintendo Virtual Boy core is one of the best for the system.
Other 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]].
[[RetroArch]] uses the Sony PlayStation, NEC PC Engine, SNK Neo Geo Pocket/Color, Nintendo Virtual Boy, Sega Saturn and Bandai WonderSwan/Color cores of Mednafen, so it might make sense to use that instead.
* [http://sourceforgeSee our dedicated frontends page.net/projects/medgui/ Medgui] (Windows)* [http://forum.fobby.net/index.php?t=msg&th=924&start=0& MedGui Reborn] (Windows)* [https://medlaunch.info MedLaunch] (Windows)* [https://github.com/AmatCoder/mednaffe Mednaffe] (Multi-platform){{Main|Frontends#Mednafen}}
→Memory cards
|logo = Newlogo-1-.png
|logowidth = 280
|version = {{MednafenVerVersion|Mednafen}}
|active = Yes
|platform = Multi-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 = [[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]], [[Virtual Boy emulators|Virtual Boy]], </br>[[PC Engine (TurboGrafx-16) emulators|NEC PC Engine (/TurboGrafx-16)]], </br>[[PC-FX emulators|PC-FX]], </br>[[Neo Geo Pocket emulators|SNK Neo Geo Pocket/Color]], </br>[[PlayStation emulators|Sony PlayStation]], </br>[[Master System emulators|Sega Master System]], [[Master System emulators|Game Gear]], </br>[[Sega Genesis emulators|Sega Genesis (Mega Drive)]], </br>[[Sega Saturn emulators|Sega Saturn]]</br>[[Master System emulators|Sega Game Gear]]|developer = Ryphecha, </br>Mednafen Team|website = [https://mednafen.github.io/ mednafen.github.io]
|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 an open-source, [[Multi-system emulators|multi-system emulator]], driven from the command-line. Many of its cores are ports of other emulators; however, but many of them its cores are also original. Its [[PlayStation emulators|Sony PlayStation]], [[Sega Saturn emulators|Sega Saturn]], [[Virtual Boy emulators|Nintendo Virtual Boy]], and [[PC Engine (TurboGrafx-16) emulators|NEC PC Engine (TurboGrafx-16)]] original cores are notable for their high quality, compatibility and accuracy.
==Downloads==
==Supported systems==
|[[Atari Lynx emulators|Atari Lynx]]
|[[Handy]]
|-
|[[Apple II emulators|Apple II]]
|Original.
|-
|[[WonderSwan emulators|Bandai WonderSwan/Color]]
|[[Cygne]]
|-
|[[PC Engine (TurboGrafx-16) emulators|NEC PC Engine (/TurboGrafx-16(CD)]]|Original. CD-ROM interface based on [https://web.archive.org/web/20190327015916/http://www.geocities.co.jp/SiliconValley-Bay/9975/PC2E/english.html PC2E].
|-
|[[PC-FX emulators|NEC PC-FX]]
|-
|[[Nintendo Entertainment System emulators|NES (Famicom)]]
|[http://freecodefceultra.sourceforge.com/projectsnet/fceultra FCE Ultra]
|-
|[[Game Boy Advance emulators|Nintendo Game Boy Advance]]
|-
|[[Master System emulators|Sega Master System]] and [[Master System emulators|Game Gear]]
|[https://web.archive.org/web/20170406033236/http://www.techno-junk.org/smsplus.php SMS Plus]
|-
|[[Sega Saturn emulators|Sega Saturn]]
|Original. Experimental ST-V arcade board support.
|-
|[[Neo Geo Pocket emulators|SNK Neo-Geo Pocket/Color]]
|-
|[[PlayStation emulators|Sony PlayStation]]
|Original.
|-
|[[Super Nintendo emulators|SNES (Super Famicom)]]
|[[higan|bsnes v059]]& Original ([https://mednafen.github.io/documentation/snes_faust.html SNES Faust])
|}
==Using Mednafen==
Officially Mednafen has only a command-line interface, that is pretty nevertheless easy to get up configure and runningrun for users familiar with it. You Everyone else can use a [[Frontends#Mednafen|third-party frontend like medgui]] for GUI. However, As with any type of interface a good text editor like [http://www.notepad-plus-plus.org/ Notepad++] is all you need if you need can be used to change settings.
===BIOS===
Most cores do not require any BIOS except for the Sony PlayStation, NEC PC Engine CD, PC-FX, and Sega Saturn cores. [[Emulator_Files#Multi-System|BIOS files]] need to be placed into a folder called "firmware" in your Mednafen directory. Mednafen is very picky about which BIOS to use, but all of these come with the [[Emulator_Files#Multi-System|Mednafen BIOS pack]] and are correctly named.<ref group=notes>Mednafen 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. </ref> The ones that you might need are:
'''Sony PlayStation'''
'''Sega Saturn'''
* sega_101.bin- Required for Japan-region games.* mpr-17933.bin- Required for North America/US-region and Europe-region games. All of these come with For ST-V games, use the [[Emulator_Files#Multi-System|RetroArch BIOS pack]] and are correctly namedoriginal uncompressed files inside stvbios.zip from MAME romset.
===CUE===
===Configuring controls===
Once in-game, to configure your controller at any time, press Alt+Shift+1 and it will guide you through the setup. Press Alt+Shift+2 and so on for each additional controller for multiplayer.
To emulate a different kind of controller, Ctrl+Shift+1 (or 2 for port 2 etc) to cycle through known controller types.
If you're having trouble with a controller with analog buttons (the Namco neGcon, for example), hit F3 to make Mednafen detect them.
===Graphical enhancements===
* [{{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 scale
File:mednafenpsxafter.png|2.1875X scale
</gallery>
===Cheats===
To add an existing GS/AR/PAR/CB cheat code, use "Gameshark Codes". Else, if you have a memory address and a given value for it, choose "Search Code" then "Add Code", then put in the address (as $XXXXXXXX), the byte range depending on the values your variable can take (1 is 0-255, 2 is 0-65535, etc), and the numeric value proper (in decimal, or hexadecimal if followed by a lower-case h). Various cheat types exist too (S(substitute on read), C(substitute on read with compare) or R(replace value before vblank) -- R being the default recommended option).
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.
* '''Infinite Lives:''' It's game over when the internal variable for "Lives" is 0. So in some cases, when it shows "REST/LEFT=1" in-game and you lose a life then it becomes 0 but you're still allowed to play on your last life, that means the internal counter for lives has actually changed from 2 to 1 and not from 1 to 0, but in other games (where if you die on "LIVESx1" it's game over) it's not the case. In the case of lives, you actually know the exact value: reset search initially, then (if you have 2 lives on a game that allows you to play on "LEFT=0") search for variables with values equal to 3. Lose a life, search for variables equal 2, and so on.
The goal of these searches is to narrow down the list of results to a single or handful of addresses (variables) pertinent directly to whatever we're searching for. The search always starts with "Reset Search", going back in-game (Alt+C) to play and change stuff, then back to the cheat engine to compare the "Original" value with the "Current" value. Then you check the results page which must get smaller and smaller (if it's 0 results, you screwed up and need to reset search to try again). The comparing options offered by Mednafen are as follow, with O being the Original value, and C being the Current value (when you reset a search, they're the same):
# '''O==V1 && C==V2''' if you know the explicit numerical values for the variable , you write it here. 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.
# '''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)
# '''|O-C|==V2''' you write by how much it changed (0 if old value equals new value)
===Further reading===
* {{MednafenURL|documentation/}}
==Memory cards==
* Rename the files you want to transfer with the names of the RetroArch memcard files.
* Place the new ones in the system folder.
====Using Memory Card Manager 1.4====
Another 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: *.mem, *.mcd, *.mcr, *.gme, *.ddf, *.psx, *.ps, *.psm, *.vmp, *.VM1
[[File:memory_card_manager.png|400px]]
It allows to transfer each of the 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 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).
==Frontends==
==Netplay==
* Super Nintendo Entertainment System
* Sony PlayStation
* Sega Saturn (experimental)
{| class="mw-collapsible mw-collapsed wikitable" style="width: 100%;"
|-
| '''CONS''' ||
* Command-line only (you can use a frontendthankfully, thoughdedicated front-end GUI for this multi-emulator exists)
* Weird, convoluted settings (or lack thereof)
* 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 accurate but slow
* Only supports 2 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 drop-down menu)No CHD file support
|}
==External links==
* [http://fantasyanime.com/emuhelp/emuhelp_mednafen.htm Mednafen tutorial]
* [https://formulae.brew.sh/formula/mednafen MacOS instructions]
==Notes==
<references group="notes"/>
==References==
<references/>
[[Category:Emulators]]
[[Category:Multi-emulators]]
[[Category:Console emulators]][[Category:Home console emulators]][[Category:Handheld console emulators]][[Category:Computer emulators]][[Category:Apple II emulators]][[Category:Atari consolesLynx emulators]]
[[Category:Nintendo Entertainment System emulators]]
[[Category:Super Nintendo emulators]]
[[Category:PC Engine (TurboGrafx-16) emulators]]
[[Category:PC-FX emulators]]
[[Category:Neo Geo Pocket/Neo Geo Pocket Color emulators]]
[[Category:Game Boy/Game Boy Color emulators]]
[[Category:Game Boy Advance emulators]]
[[Category:Sega Saturn emulators]]
[[Category:Virtual Boy emulators]]
[[Category:WonderSwan emulators]]
[[Category:Netplay]]
[[Category:Windows emulation software]]
[[Category:Linux emulation software]]
[[Category:macOS BSD emulation software]]
