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# Snes9x 2005 Plus - RetroBIOS

Type | libretro
Classification | frozen_snapshot
Source | https://github.com/libretro/snes9x2005
Upstream | https://github.com/ShadauxCat/CATSFC
Version | v1.36
Profiled | 2026-03-25
Cores | snes9x2005_plus
Systems | snes, sufami-turbo, satellaview

Technical notes

Same codebase as Snes9x 2005 built with USE_BLARGG_APU=1 for more accurate audio. Frozen snapshot of Snes9x 1.43 via CATSFC (NDS/PSP port by ShadauxCat/Nebuleon). SPC700 IPL ROM (64 bytes) embedded in apu_blargg.c:3272 as APUROM[64]. DSP-1 ROM data (1024 x uint16) embedded in dsp1emu.c:8 as DSP1ROM[1024]. All coprocessors (DSP-1/2/4, CX4, ST010/011/018, SuperFX, SPC7110, SA-1, OBC-1) are pure HLE. The core never calls GET_SYSTEM_DIRECTORY and performs no file I/O from the system directory.

No BIOS or firmware files required.

Why no files

all coprocessor ROMs embedded in binary; no system_directory access

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