Show pageOld revisionsBacklinksExport to PDFBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. <WRAP group> <WRAP round box twothirds column> {{ https://raw.githubusercontent.com/fabricecaruso/es-theme-carbon/master/art/logos/segacd.svg?nolink&480 }} {{ https://raw.githubusercontent.com/fabricecaruso/es-theme-carbon/master/art/logos/us/segacd.svg?nolink&480 }} {{ https://raw.githubusercontent.com/fabricecaruso/es-theme-carbon/master/art/logos/jp/segacd.svg?nolink&260 }} ====== Sega CD ====== The Sega CD is an add-on for the [[:systems:megadrive|Megadrive/Genesis]] developed by Sega. It was released in 1991. This system scrapes metadata for the ''segacd'' group(s) and loads the ''segacd'' set from the currently selected theme, if available. </WRAP> <WRAP third column> {{ https://raw.githubusercontent.com/fabricecaruso/es-theme-carbon/master/art/consoles/segacd.png?nolink&350 |}} {{ https://raw.githubusercontent.com/fabricecaruso/es-theme-carbon/master/art/consoles/us/segacd.png?nolink&350 }} {{ https://raw.githubusercontent.com/fabricecaruso/es-theme-carbon/master/art/consoles/jp/segacd.png?nolink&350 |}} </WRAP> </WRAP> ==== Quick reference ==== * **Emulator:** [[#retroarch|RetroArch]] * **Cores available:** [[#libretro:_genesisplusgx|libretro: genesisplusgx]], [[#libretro:_picodrive|libretro: picodrive]] * **Folder:** ''/userdata/roms/segacd'' * **Accepted ROM formats:** ''.cue'', ''.iso'', ''.chd'', ''.m3u'' ===== BIOS ===== ^ MD5 checksum ^ Share file path ^ Description ^ | ''e66fa1dc5820d254611fdcdba0662372'' | ''bios/bios_CD_E.bin'' | | | ''854b9150240a198070150e4566ae1290'' | ''bios/bios_CD_U.bin'' | | | ''278a9397d192149e84e820ac621a8edd'' | ''bios/bios_CD_J.bin'' | | ===== ROMs ===== Place your Sega CD ROMs in ''/userdata/roms/segacd''. ===== Emulators ===== ==== RetroArch ==== [[https://docs.libretro.com/|RetroArch]] (formerly SSNES), is a ubiquitous frontend that can run multiple "cores", which are essentially the emulators themselves. The most common cores use the [[https://www.libretro.com/|libretro]] API, so that's why cores run in RetroArch in Batocera are referred to as "libretro: (core name)". RetroArch aims to unify the feature set of all libretro cores and offer a universal, familiar interface independent of platform. === RetroArch configuration === RetroArch offers a **Quick Menu** accessed by pressing ''[HOTKEY]'' + {{:wiki:south.png?nolink&20|South button (B SNES)}} which can be used to alter various things like [[:advanced_retroarch_settings|RetroArch and core options]], and [[:remapping_controls_per_emulator|controller mapping]]. Most RetroArch related settings can be altered from Batocera's EmulationStation. Standardized features available to all libretro cores: ''segacd.videomode'', ''segacd.ratio'', ''segacd.smooth'', ''segacd.shaders'', ''segacd.pixel_perfect'', ''segacd.decoration'', ''segacd.game_translation'' ^ ES setting name ''batocera.conf_key'' ^ Description => ES option ''key_value'' ^ ^ Settings that apply to all cores of this emulator || | **GRAPHICS BACKEND ''segacd.gfxbackend''** | Choose your graphics rendering\\ => OpenGL ''opengl'', Vulkan ''vulkan''. | | **AUDIO LATENCY ''segacd.audio_latency''** | Audio latency in milliseconds, turn it up if you hear crackles\\ => 256 ''256'', 192 ''192'', 128 ''128'', 64 ''64'', 32 ''32'', 16 ''16'', 8 ''8''. | | **THREADED VIDEO ''segacd.video_threaded''** | Improves performance at the cost of latency and more video stuttering. Use only if full speed cannot be obtained otherwise.\\ => On ''true'', Off ''false''. | === libretro: Genesisplusgx === A good all-around emulator. It can run Sega Genesis/Megadrive, Sega Master System, Sega/Mega CD and Game Gear games, but lacks 32X and Pico support. It is also the only emulator to support Lock-On technology, but can only be activated in RetroArch's **Quick Menu** ( ''[HOTKEY]'' + {{:wiki:south.png?nolink&20|South button (B SNES)}}) (correct as of v31). After resetting the game, Lock-On will be activated. By default, Batocera will reset this setting after exiting the game. This can be changed on a per-game basis by using RetroArch's Overrides. There are patches available for ROMs that set the flag to boot into their Lock-On ROMs instead, so this is not strictly required to play those games. == libretro: Genesisplusgx configuration == ^ ES setting name ''batocera.conf_key'' ^ Description => ES option ''key_value'' ^ ^ Settings that apply to all systems this core supports || | **REDUCE SPRITE FLICKERING ''global.gpgx_no_sprite_limit''** | The Megadrive/Genesis can only draw ~80 sprites per horizontal line at a time, and any more will be mitigated by rapidly flickering between them each frame. This setting removes that limitation. Some games rely on the limit to mask certain sprites, but is generally not noticeable when removed.\\ => Off ''disabled'', On ''enabled''. | ^ Settings specific to megadrive || | **NTSC FILTER ''megadrive.gpgx_blargg_filter_md''** | GenesisPlusGX has the Blarg NTSC filter built-in as a feature, unrelated to the shader selected within Batocera. This applies only to Megadrive/Genesis games. Batocera's or RetroArch's preset shaders can be used instead.\\ => Off ''False'', Composite (color bleeding + artifacts) ''composite'', SVideo (color bleeding only) ''svideo'', RGB (crisp image) ''rgb''. | | **SHOW LIGHTGUN CROSSHAIR ''megadrive.gun_cursor_md''** | Shows crosshairs for Menacer and Justifiers devices. This applies only to Megadrive/Genesis games.\\ => Off ''disabled'', On ''enabled''. | | **CONTROLLER 1 TYPE ''megadrive.controller1_md''** | The Megadrive/Genesis has many types of peripherals, notably a 6-button controller that some games require to be fully functional and a few lightguns. This is also where you would set your multi-tap on, if required.\\ => Joypad Auto ''1'', Joypad 3 Button ''257'', Joypad 6 Button ''513'', Joypad 3 Button + 4-WayPlay ''1025'', Joypad 6 Button + 4-WayPlay ''1281'', Joypad 3 Button + Teamplayer ''1537'', Joypad 6 Button + Teamplayer ''1793'', Mouse ''2''. | | **CONTROLLER 2 TYPE ''megadrive.controller2_md''** | Same as above but also has the Menacer Light Gun and Konami Justifiers available.\\ => Joypad Auto ''1'', Joypad 3 Button ''257'', Joypad 6 Button ''513'', Joypad 3 Button + 4-WayPlay ''1025'', Joypad 6 Button + 4-WayPlay ''1281'', Joypad 3 Button + Teamplayer ''1537'', Joypad 6 Button + Teamplayer ''1793'', Mouse ''2'', Menacer Light Gun ''516'', Konami Justifiers ''772''. | ^ Settings specific to mastersystem || | **NTSC FILTER ''mastersystem.gpgx_blargg_filter_ms''** | GenesisPlusGX has the Blarg NTSC filter built-in as a feature, unrelated to the shader selected within Batocera. This applies only to Master System games. Batocera's or RetroArch's preset shaders can be used instead.\\ => Off ''False'', Composite (color bleeding + artifacts) ''composite'', SVideo (color bleeding only) ''svideo'', RGB (crisp image) ''rgb''. | | **FM CHIP (YM2413) ''mastersystem.ym2413''** | Enhanced sound output support for compatible games.\\ => Autodetect ''automatic'', Off ''disabled'', On (forced) ''enabled''. | | **SHOW LIGHTGUN CROSSHAIR ''mastersystem.gun_cursor_ms''** | Shows crosshairs for Menacer and Justifiers devices. This applies only to Master System games.\\ => Off ''disabled'', On ''enabled''. | | **CONTROLLER 1 TYPE ''mastersystem.controller1_ms''** | Select 2 button controller, Lightgun or Multitap.\\ => Joypad 2 Button ''769'', Joypad 2 Button + Master Tap ''2049'', Light Phaser ''260'', Paddle Control ''261''. | | **CONTROLLER 2 TYPE ''mastersystem.controller2_ms''** | Select 2 button controller, Lightgun or Multitap.\\ => Joypad 2 Button ''769'', Joypad 2 Button + Master Tap ''2049'', Light Phaser ''260'', Paddle Control ''261''. | ^ Settings specific to gamegear || | **LCD GHOSTING FILTER ''gamegear.lcd_filter''** | Simulate LCD ghosting effects.\\ => Off ''disabled'', On ''enabled''. | | **EXTENDED SCREEN ''gamegear.gg_extra''** | Extend the game screen area like on a Master System.\\ => Off ''disabled'', On ''enabled''. | === libretro: Picodrive === A lighter emulator which although not as accurate as GenesisPlusGX, can be run on much weaker hardware. This should be the default for devices such as the Raspberry Pi Zero and other sub-1GHz CPUs. Currently the only cross-architecture option for 32X and Pico games. == libretro: Picodrive configuration == ^ ES setting name ''batocera.conf_key'' ^ Description => ES option ''key_value'' ^ ^ Settings that apply to all systems this core supports | | **REDUCE SPRITE FLICKERING ''gamegear.picodrive_sprlim''** | The Megadrive can only draw ~80 sprites per horizontal line at a time, and any more will be mitigated by rapidly flickering between them each frame. This setting removes that limitation. Some games rely on the limit to mask certain sprites, but is generally not noticeable when removed.\\ => Off ''disabled'', On ''enabled''. | | **CROP OVERSCAN ''gamegear.picodrive_cropoverscan''** | Crops out video edge hidden under bezel of analog TV.\\ => Off ''disabled'', On ''enabled''. | | **CONTROLLER 1 TYPE ''gamegear.picodrive_controller1''** | Select 3 or 6 button controller.\\ => Joypad 3 Button ''3 button pad'', Joypad 6 Button ''6 button pad''. | | **CONTROLLER 2 TYPE ''gamegear.picodrive_controller2''** | Same as above, but for port 2.\\ => Joypad 3 Button ''3 button pad'', Joypad 6 Button ''6 button pad''. | ===== Controls ===== Here are the Sega CD's controls shown on a [[:configure_a_controller|Batocera Retropad]]: {{ https://raw.githubusercontent.com/batocera-linux/batocera-controller-overlays/master/solid-4k/megadrive.png }} ===== Troubleshooting ===== For further troubleshooting, refer to the [[:support|generic support pages]]. systems/segacd.txt Last modified: 2 years agoby atari