nekop2 - RetroBIOS

Type	libretro
Classification	community_fork
Source	https://github.com/libretro/libretro-meowPC98
Upstream	https://np2.yui.ne.jp (dead; source preserved in libretro repo)
Version	0.86
Profiled	2026-03-24
Cores	nekop2
Systems	pc-98

12 files | 0 required, 12 optional | 10 in repo, 2 missing | 5 with HLE fallback

bios.rom -optional, HLE available

• Path: np2/bios.rom
• Source: bios/bios.c:232-235, common/strres.c:53
• Platforms: lakka, recalbox, retroarch, retrodeck, retropie
• PC-9801 system BIOS ROM (96 KB). The core boots without it using the built-in BIOS simulator, but some software requires the real BIOS.

bios9821.rom -optional

• Path: np2/bios9821.rom
• Source: bios/bios.c:262-266, libretro/compiler.h:169
• Platforms: retrodeck
• PC-9821 extension BIOS ROM (8 KB). For PC-9821 mode support. Mapped at 0xd8000.

font.bmp -optional, HLE available

• Path: np2/font.bmp
• Aliases: FONT.ROM
• Source: libretro/libretro.c:862, font/font.c:113, font/fontdata.c:12
• Platforms: batocera, lakka, recalbox, retroarch, retrobat, retrodeck, retropie
• PC-98 font bitmap (288 KB). Required for correct Japanese kanji display. Without this, only basic ASCII renders using built-in 8x8 data. FONT.ROM (V98 format) is also accepted.

sound.rom -optional, HLE available

• Path: np2/sound.rom
• Source: sound/soundrom.c:15-16,21-55,65-78
• Platforms: lakka, recalbox, retroarch, retrodeck, retropie
• FM sound board BIOS ROM (16 KB). The core tries board-specific variants first (sound26.rom, sound86.rom, sound118.rom, soundSPB.rom, sound14.rom) then falls back to sound.rom.

2608_bd.wav -optional

• Path: np2/2608_bd.wav
• Source: sound/rhythmc.c:11,60-71
• Platforms: lakka, recalbox, retroarch, retropie
• YM2608 OPNA rhythm sample: bass drum

2608_sd.wav -optional

• Path: np2/2608_sd.wav
• Source: sound/rhythmc.c:12
• Platforms: lakka, recalbox, retroarch, retropie
• YM2608 OPNA rhythm sample: snare drum

2608_top.wav -optional

• Path: np2/2608_top.wav
• Source: sound/rhythmc.c:13
• Platforms: lakka, recalbox, retroarch, retropie
• YM2608 OPNA rhythm sample: top cymbal

2608_hh.wav -optional

• Path: np2/2608_hh.wav
• Source: sound/rhythmc.c:14
• Platforms: lakka, recalbox, retroarch, retropie
• YM2608 OPNA rhythm sample: hi-hat

2608_tom.wav -optional

• Path: np2/2608_tom.wav
• Source: sound/rhythmc.c:15
• Platforms: lakka, recalbox, retroarch, retropie
• YM2608 OPNA rhythm sample: tom

2608_rim.wav -optional

• Path: np2/2608_rim.wav
• Source: sound/rhythmc.c:16
• Platforms: lakka, recalbox, retroarch, retropie
• YM2608 OPNA rhythm sample: rim shot

scsi.rom -optional, HLE available, missing from repo

• Path: np2/scsi.rom
• Source: cbus/scsiio.c:208-233
• SCSI controller BIOS ROM (16 KB). The core includes a built-in SCSI BIOS stub as fallback.

sasi.rom -optional, HLE available, missing from repo

• Path: np2/sasi.rom
• Source: cbus/sasiio.c:442-465
• SASI controller BIOS ROM (4 KB). The core includes a built-in SASI BIOS stub as fallback.

Generated on 2026-03-25T14:56:43Z