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====== PC Engine CD-ROM²/TurboGrafx-CD ======

The CD-ROM²/TurboGrafx-CD is an attachment to the original [[systems:pcengine|PC Engine/TurboGrafx-16]] console developed by NEC. It was released in 1988. This made the PC Engine/TurboGrafx-16 the first videogame console ever to use CD-ROMs as storage media.

A later revision of the base console, the PC Engine Duo R (TurboDuo in the US), was released in 1991 (1992 in the US) which integrated the CD add-on into the unit and enhanced internals. This revision used a different controller port (which could still use the older controllers, but required an adapter). There would be yet another Japan-exclusive revision, the PC Engine Duo RX in 1994, which featured a six-button controller.

This system scrapes metadata for the "pcenginecd" group and loads the ''pce-cd'' set from the currently selected theme, if available.
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==== Quick reference ====

  * **Emulator:** [[#retroarch|RetroArch]]
  * **Cores available:** [[#libretro:_pce|libretro: pce]], [[#libretro:_pce_fast|libretro: pce_fast]]
  * **Folder:** ''/userdata/roms/pcenginecd''
  * **Accepted ROM formats:** ''.pce'', ''.cue'', ''.ccd'', ''.iso'', ''.img'', ''.chd''

===== BIOS =====

This BIOS file is required.

^ MD5 checksum ^ Share file path ^ Description ^
| ''38179df8f4ac870017db21ebcbf53114'' | ''bios/syscard3.pce'' | Super CD-ROM2 System V3.xx |

These BIOS files can also work, however they are known to have compatibility issues with certain games:

^ MD5 checksum ^ Share file path ^ Description ^
| | ''bios/syscard2.pce'' | CD-ROM System V2.xx |
| | ''bios/syscard1.pce'' | CD-ROM System V1.xx |
| | ''bios/gexpress.pce'' | Game Express CD Card |

===== ROMs =====

Place your CD-ROM²/TurboGrafx-CD ROMs in ''/userdata/roms/pcenginecd''.

To load [[:cd_image_formats|CD-ROM content]], a CUE sheet is //required//. CUE sheets can be [[:cd_image_formats#cue_sbi_gdi_sheet_recovery|recovered]] if lost.

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The preferred format for disc compression is [[:disk_image_compression#chd|CHD]]. CHDs, by their nature, include the CUE sheet information.
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===== 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: ''pcenginecd.videomode'', ''pcenginecd.ratio'', ''pcenginecd.smooth'', ''pcenginecd.shaders'', ''pcenginecd.pixel_perfect'', ''pcenginecd.decoration'', ''pcenginecd.game_translation''

^ ES setting name ''batocera.conf_key'' ^ Description => ES option ''key_value'' ^
^ Settings that apply to all cores of this emulator ||
| **GRAPHICS API ''pcenginecd.gfxbackend''** | Choose which graphics API library to use. Vulkan is better, when supported.\\ => OpenGL ''opengl'', Vulkan ''vulkan''. |
| **AUDIO LATENCY ''pcenginecd.audio_latency''** | In milliseconds. Can reduce crackling/cutting out.\\ => 256 ''256'', 192 ''192'', 128 ''128'', 64 ''64'', 32 ''32'', 16 ''16'', 8 ''8''. |
| **THREADED VIDEO ''pcenginecd.video_threaded''** | Improves performance at the cost of latency and more video stuttering.\\ => On ''true'', Off ''false''. |

=== libretro: pce ===

== libretro: pce 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.pce_nospritelimit''** | Enhancement. Remove the sixteen sprites per line limit.\\ => Off ''disabled'', On ''enabled''. |
| **CONTROLLER 1 TYPE ''global.controller1_pce''** | \\ => PCE Joypad ''1'', PCE Mouse ''2''. |

=== libretro: pce_fast ===

== libretro: pce_fast 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.pce_nospritelimit''** | Enhancement. Remove the sixteen sprites per line limit.\\ => Off ''disabled'', On ''enabled''. |
| **CONTROLLER 1 TYPE ''global.controller1_pce''** | \\ => PCE Joypad ''1'', PCE Mouse ''2''. |

===== Controls =====

Here are the default CD-ROM²/TurboGrafx-CD's controls shown on a [[:configure_a_controller|Batocera Retropad]]:

{{https://raw.githubusercontent.com/batocera-linux/batocera-controller-overlays/master/solid-4k/pcengine.png}}
===== Troubleshooting =====

==== Further troubleshooting ====

For further troubleshooting, refer to the [[:support|generic support pages]].