mednafen_pce_fast - RetroBIOS¶
| Type | libretro |
| Classification | community_fork |
| Source | https://github.com/libretro/beetle-pce-fast-libretro |
| Upstream | https://mednafen.github.io/ |
| Version | v1.31.0.0 |
| Profiled | 2026-03-24 |
| Cores | mednafen_pce_fast |
| Systems | nec-pc-engine |
| Verification mode | existence |
Technical notes
Fork of Mednafen's pce_fast module (speed-optimized, no SuperGrafx support). Separate codebase from beetle_pce (mednafen/pce_fast/ vs mednafen/pce/). BIOS loaded via HuCLoadCD() at CD-ROM load time. Core option "pce_fast_cdbios" selects which card image to use (default: System Card 3). No Games Express auto-detection (unlike beetle_pce); user must select manually. No hash or size validation on BIOS load. Upstream pce_fast module only has a single pce_fast.cdbios string setting; the 6-option dropdown is a libretro addition.
6 files | 1 required, 5 optional | 6 in repo, 0 missing
syscard3.pce -required, NTSC-J
: CD-ROM System Card 3.0 (Japan)
- Source:
libretro.cpp:67, libretro.cpp:1755-1760 - Platforms: batocera, lakka, recalbox, retroarch, retrobat, retrodeck, retropie
- Default value for pce_fast_cdbios option.
syscard2.pce -optional, NTSC-J
: CD-ROM System Card 2.0 (Japan)
- Source:
libretro.cpp:1762 - Platforms: lakka, recalbox, retroarch, retrodeck, retropie
- pce_fast_cdbios = 'System Card 2'.
syscard1.pce -optional, NTSC-J
: CD-ROM System Card 1.0 (Japan)
- Source:
libretro.cpp:1764 - Platforms: lakka, recalbox, retroarch, retrodeck, retropie
- pce_fast_cdbios = 'System Card 1'.
gexpress.pce -optional, NTSC-J
: Games Express CD Card
- Aliases:
gecard.pce - Source:
libretro.cpp:1765-1766 - Platforms: lakka, recalbox, retroarch, retrodeck, retropie
- pce_fast_cdbios = 'Games Express'. For unlicensed Games Express titles.
syscard3u.pce -optional, NTSC-U
: CD-ROM System Card 3.0 (US / TurboGrafx-CD)
- Source:
libretro.cpp:1767-1768 - Platforms: lakka, recalbox, retroarch, retropie
- pce_fast_cdbios = 'System Card 3 US'. Not in .info.
syscard2u.pce -optional, NTSC-U
: CD-ROM System Card 2.0 (US / TurboGrafx-CD)
- Source:
libretro.cpp:1769-1770 - Platforms: lakka, recalbox, retroarch, retrodeck, retropie
- pce_fast_cdbios = 'System Card 2 US'. Not in .info.
Generated on 2026-03-25T14:56:43Z