v2026.04.02/emulators/chimerasnes.yml

emulator: ChimeraSNES
type: libretro
source: "https://github.com/jamsilva/chimerasnes"
upstream: "https://github.com/snes9xgit/snes9x"
profiled_date: "2026-03-18"
core_version: ""
display_name: "Nintendo - SNES / SFC (ChimeraSNES)"
cores: [chimerasnes]
systems:
  - nintendo-snes

notes: |
  Fork of Snes9x ~2005, optimized for slow hardware.
  NOT identical to snes9x — different firmware behavior.

  All coprocessor data is HLE with static ROM tables embedded:
    DSP1: DSP1ROM[1024] in source/dsp1.c:6
    DSP3: DSP3_DataROM[1024] in source/dsp3.c:7
  No external DSP/ST/CX4 firmware files needed.

  BS-X: path constructed in source/bsx.c:873 as romdir/BS-X.bios
  (relative to ROM directory, NOT system_dir). No
  RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY for firmware loading.

  firmware_count absent in .info (= 0). Confirmed in source.

files: []
# all coprocessors HLE with embedded data
# BS-X.bios loaded from ROM directory, not system_dir
feat: 4-source verified emulator profiles (A-E cores) 33 emulator profiles created or updated with systematic verification against libretro docs, .info, core source, and original emulator source code. New profiles: bsnes-jg, bsnes2014, bsnes_cplusplus98, bsnes_hd_beta, bsnes_mercury, citra2018, citra_canary. Key fixes: - dosbox_svn/svn_ce: not aliases of dosbox_core (no MUNT) - beetle_psx: alt_names renamed to aliases (field bug) - dolphin: added 15 Realtek BT firmware for Wiimote passthrough - dosbox_core: added CM-32LN, 13 split ROM pairs for standalone - duckstation: type standalone+libretro, 106 BIOS verified - snes9x/np2kai: formal aliases for alternate filenames 2026-03-19 08:09:34 +01:00			`emulator: ChimeraSNES`
			`type: libretro`
			`source: "https://github.com/jamsilva/chimerasnes"`
			`upstream: "https://github.com/snes9xgit/snes9x"`
feat: add profiled_date to all YAMLs, create 56 alias profiles - Added profiled_date field to all 204 existing profiles for update tracking - Created 56 alias profiles for cores that share BIOS with a parent (e.g., mednafen_psx -> beetle_psx, fbalpha2012 -> fbneo) 260 total profiles covering all 294 libretro cores (204 unique + 56 alias). 2026-03-18 05:15:51 +01:00			`profiled_date: "2026-03-18"`
feat: 4-source verified emulator profiles (A-E cores) 33 emulator profiles created or updated with systematic verification against libretro docs, .info, core source, and original emulator source code. New profiles: bsnes-jg, bsnes2014, bsnes_cplusplus98, bsnes_hd_beta, bsnes_mercury, citra2018, citra_canary. Key fixes: - dosbox_svn/svn_ce: not aliases of dosbox_core (no MUNT) - beetle_psx: alt_names renamed to aliases (field bug) - dolphin: added 15 Realtek BT firmware for Wiimote passthrough - dosbox_core: added CM-32LN, 13 split ROM pairs for standalone - duckstation: type standalone+libretro, 106 BIOS verified - snes9x/np2kai: formal aliases for alternate filenames 2026-03-19 08:09:34 +01:00			`core_version: ""`
docs: add core_version, display_name to all 260 emulator profiles Every profile now has: - profiled_date: date of source code analysis - core_version: version from libretro-core-info .info files - display_name: human-readable name from .info files 260/260 profiles complete. 294/294 libretro cores covered. Standalone emulators (cemu, rpcs3, xemu, vita3k) versioned manually. 2026-03-18 05:19:57 +01:00			`display_name: "Nintendo - SNES / SFC (ChimeraSNES)"`
feat: 4-source verified emulator profiles (A-E cores) 33 emulator profiles created or updated with systematic verification against libretro docs, .info, core source, and original emulator source code. New profiles: bsnes-jg, bsnes2014, bsnes_cplusplus98, bsnes_hd_beta, bsnes_mercury, citra2018, citra_canary. Key fixes: - dosbox_svn/svn_ce: not aliases of dosbox_core (no MUNT) - beetle_psx: alt_names renamed to aliases (field bug) - dolphin: added 15 Realtek BT firmware for Wiimote passthrough - dosbox_core: added CM-32LN, 13 split ROM pairs for standalone - duckstation: type standalone+libretro, 106 BIOS verified - snes9x/np2kai: formal aliases for alternate filenames 2026-03-19 08:09:34 +01:00			`cores: [chimerasnes]`
			`systems:`
			`- nintendo-snes`

			`notes: \|`
			`Fork of Snes9x ~2005, optimized for slow hardware.`
			`NOT identical to snes9x — different firmware behavior.`

			`All coprocessor data is HLE with static ROM tables embedded:`
			`DSP1: DSP1ROM[1024] in source/dsp1.c:6`
			`DSP3: DSP3_DataROM[1024] in source/dsp3.c:7`
			`No external DSP/ST/CX4 firmware files needed.`

			`BS-X: path constructed in source/bsx.c:873 as romdir/BS-X.bios`
			`(relative to ROM directory, NOT system_dir). No`
			`RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY for firmware loading.`

			`firmware_count absent in .info (= 0). Confirmed in source.`

feat: add profiled_date to all YAMLs, create 56 alias profiles - Added profiled_date field to all 204 existing profiles for update tracking - Created 56 alias profiles for cores that share BIOS with a parent (e.g., mednafen_psx -> beetle_psx, fbalpha2012 -> fbneo) 260 total profiles covering all 294 libretro cores (204 unique + 56 alias). 2026-03-18 05:15:51 +01:00			`files: []`
feat: 4-source verified emulator profiles (A-E cores) 33 emulator profiles created or updated with systematic verification against libretro docs, .info, core source, and original emulator source code. New profiles: bsnes-jg, bsnes2014, bsnes_cplusplus98, bsnes_hd_beta, bsnes_mercury, citra2018, citra_canary. Key fixes: - dosbox_svn/svn_ce: not aliases of dosbox_core (no MUNT) - beetle_psx: alt_names renamed to aliases (field bug) - dolphin: added 15 Realtek BT firmware for Wiimote passthrough - dosbox_core: added CM-32LN, 13 split ROM pairs for standalone - duckstation: type standalone+libretro, 106 BIOS verified - snes9x/np2kai: formal aliases for alternate filenames 2026-03-19 08:09:34 +01:00			`# all coprocessors HLE with embedded data`
			`# BS-X.bios loaded from ROM directory, not system_dir`