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https://github.com/Abdess/retroarch_system.git
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feat: add neo geo cd support to geolith profile
This commit is contained in:
Abdessamad Derraz committed
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commit
8230aacc15
1 file changed
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-101
+211
-101
@@ -3,134 +3,108 @@ type: libretro
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core_classification: official_port
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source: "https://github.com/libretro/geolith-libretro"
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upstream: "https://gitlab.com/jgemu/geolith"
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profiled_date: "2026-03-21"
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core_version: "0.3.0"
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profiled_date: "2026-08-07"
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source_commit: "d0297113924848c60866e980a420d14ca7208d56"
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upstream_commit: "7ed2ef95a446ffb9bf17b6536d24c108310c94da"
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core_version: "0.4.1"
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display_name: "SNK - Neo Geo AES/MVS (Geolith)"
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cores:
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- geolith
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systems:
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- snk-neogeo-mvs
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- snk-neogeo-aes
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- snk-neogeo-cd
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notes: |
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Geolith is a highly accurate Neo Geo AES and MVS emulator using .NEO format
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ROMs only. BIOS files must be provided as MAME-format ZIP archives in the
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system directory. The core selects which ZIP to open based on the
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"geolith_system_type" core option (libretro/libretro.c:1017-1018):
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- AES mode -> aes.zip
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- MVS mode -> neogeo.zip
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- Uni mode -> neogeo.zip (loads uni-bios_4_0.rom from it)
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Geolith emulates the Neo Geo AES, MVS, CD, and CDZ. Cartridge systems use
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.NEO format ROMs; CD systems use .cue or .chd disc images. System ROMs come
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from MAME-format ZIP archives in the system directory.
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Inside the ZIP, specific ROM files are extracted by filename
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(src/geo.c:162-241):
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1. One 68K BIOS ROM, selected by system type + region:
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- AES Japan: neo-po.bin
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- AES other: neo-epo.bin
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- MVS US: sp-u2.sp1
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- MVS Japan: japan-j3.bin
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- MVS Asia: sp-45.sp1
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- MVS Europe: sp-s2.sp1
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- Universe: uni-bios_4_0.rom
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2. 000-lo.lo (zoom lookup table, always required)
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3. sfix.sfix (FIX layer tiles, required for MVS/Uni, not AES)
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4. sm1.sm1 (Z80 sound BIOS, required for MVS/Uni, not AES)
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Cartridge content opens aes.zip (System Type = AES, default) or neogeo.zip
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(MVS and Universe BIOS) (libretro/libretro.c:1231-1234). CD content opens
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neocd.zip (Front/Top Loader) or neocdz.zip (CDZ, default, and CD Universe
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BIOS) (libretro/libretro.c:1222-1230); Front/Top Loader additionally reads
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000-lo.lo from neocdz.zip, so neocdz.zip is needed in every CD mode
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(libretro/libretro.c:1241-1248). The Irritating Maze in MVS mode loads
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236-bios.sp1 from irrmaze.zip for trackball support; without it the game
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runs but the trackball does not work (libretro/libretro.c:1300-1311).
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The AES mode only needs the 68K BIOS + 000-lo.lo. MVS and Universe BIOS
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modes additionally need sfix.sfix and sm1.sm1.
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Inside the opened archive, members are extracted by exact filename
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(src/geo.c:174-271). One 68K BIOS is selected by system type and region
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(defaults: System Type AES, Region USA):
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- AES Japan: neo-po.bin
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- AES other regions: neo-epo.bin
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- MVS USA: sp-u2.sp1
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- MVS Japan: japan-j3.bin
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- MVS Asia: sp-45.sp1
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- MVS Europe: sp-s2.sp1
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- Universe BIOS: uni-bios_4_0.rom
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- CD Front Loader: front-sp1.bin
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- CD Top Loader: top-sp1.bin
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- CDZ: neocd.bin
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- CD Universe BIOS: uni-bioscd33.rom
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000-lo.lo is required in every mode; only the Front/Top Loader tolerates
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its absence from neocd.zip because it comes from neocdz.zip instead
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(src/geo.c:234-243, 273-285). sfix.sfix and sm1.sm1 are required for MVS
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and Universe BIOS modes only (src/geo.c:245-267).
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The core performs no hash or size validation on System ROMs. CD BIOS family
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detection and the optional CD speed hack patches use byte patterns and
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apply only when the 68K BIOS is at least 512 KiB (src/geo_cd.c:1837-1859,
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1904-1924). Upstream declares the expected archive MD5s through the Jolly
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Good API BIOS list (jg.c:212-223); the md5 fields on the archives below
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are copied from it.
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files:
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# -----------------------------------------------------------
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# neogeo.zip - MVS and Universe BIOS
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# BIOS archives (MAME format, opened by name in system dir)
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# -----------------------------------------------------------
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- name: "aes.zip"
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system: snk-neogeo-aes
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required: true
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md5: "ad9585c72130c56f04ae26aae87c289d"
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note: "Neo Geo AES System ROMs. Opened when System Type is AES (default)."
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source_ref: "libretro/libretro.c:1231-1234, jg.c:213-214"
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# MVS 68K BIOS ROMs (one required per region)
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- name: "sp-u2.sp1"
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archive: neogeo.zip
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- name: "neogeo.zip"
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system: snk-neogeo-mvs
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required: true
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size: 131072
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crc32: "e72943de"
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note: "MVS USA ver. 5 (2 slot) - default for US region"
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source_ref: "src/geo.c:174"
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md5: "00dad01abdbf8ea9e79ad2fe11bdb182"
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note: "Neo Geo MVS System ROMs. Opened for MVS and Universe BIOS modes."
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source_ref: "libretro/libretro.c:1231-1234, jg.c:215-216"
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- name: "japan-j3.bin"
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archive: neogeo.zip
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system: snk-neogeo-mvs
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- name: "neocd.zip"
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system: snk-neogeo-cd
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required: false
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size: 131072
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crc32: "dff6d41f"
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note: "MVS Japan (J3) - default for JP region"
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source_ref: "src/geo.c:177"
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md5: "006a881532f2caffc3fe9fb5593f2ed5"
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note: "Neo Geo CD Front/Top Loader System ROMs. Opened only when CD System is front or top loader."
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source_ref: "libretro/libretro.c:1222-1229, jg.c:217-218"
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- name: "sp-45.sp1"
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archive: neogeo.zip
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system: snk-neogeo-mvs
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required: false
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size: 524288
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crc32: "03cc9f6a"
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note: "NEO-MVH MV1C (Asia) - default for AS region"
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source_ref: "src/geo.c:180"
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- name: "sp-s2.sp1"
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archive: neogeo.zip
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system: snk-neogeo-mvs
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required: false
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size: 131072
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crc32: "9036d879"
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note: "MVS Asia/Europe ver. 5 (1 slot) - default for EU region"
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source_ref: "src/geo.c:183"
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# Universe BIOS (loaded from neogeo.zip when system type = uni)
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- name: "uni-bios_4_0.rom"
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archive: neogeo.zip
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system: snk-neogeo-mvs
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required: false
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size: 131072
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crc32: "a7aab458"
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note: "Universe BIOS ver. 4.0 - only version supported by Geolith"
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source_ref: "src/geo.c:189"
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# Shared ROMs (required for MVS and Universe modes)
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- name: "000-lo.lo"
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archive: neogeo.zip
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system: snk-neogeo-mvs
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- name: "neocdz.zip"
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system: snk-neogeo-cd
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required: true
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size: 131072
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crc32: "5a86cff2"
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note: "Zoom lookup table (vertical shrink ROM)"
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source_ref: "src/geo.c:207-208"
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md5: "b31a246b69493c35194fe0bac120dc37"
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note: "Neo Geo CDZ System ROMs. Opened for CDZ (default) and CD Universe BIOS; also supplies 000-lo.lo to Front/Top Loader mode."
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source_ref: "libretro/libretro.c:1222-1248, jg.c:219-220"
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- name: "sfix.sfix"
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archive: neogeo.zip
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- name: "irrmaze.zip"
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system: snk-neogeo-mvs
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required: true
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size: 131072
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crc32: "c2ea0cfd"
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note: "System FIX layer tiles (text layer)"
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source_ref: "src/geo.c:218-219"
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- name: "sm1.sm1"
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archive: neogeo.zip
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system: snk-neogeo-mvs
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required: true
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size: 131072
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crc32: "94416d67"
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note: "Z80 sound BIOS"
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source_ref: "src/geo.c:229-230"
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required: false
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md5: "0e369df30a70e45547cef9e4078dc511"
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note: "The Irritating Maze auxiliary BIOS. Loaded in MVS mode for trackball support; on failure the game runs without trackball."
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source_ref: "libretro/libretro.c:1300-1311, jg.c:221-222"
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# -----------------------------------------------------------
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# aes.zip - AES (Home Console)
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# aes.zip members
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# -----------------------------------------------------------
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# AES 68K BIOS ROMs (one required per region)
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- name: "neo-epo.bin"
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archive: aes.zip
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system: snk-neogeo-aes
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required: true
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size: 131072
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crc32: "d27a71f1"
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note: "AES Asia/US/EU - default for non-JP regions"
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source_ref: "src/geo.c:168"
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note: "AES 68K BIOS, non-Japan regions. Default for Region USA."
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source_ref: "src/geo.c:178-181"
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- name: "neo-po.bin"
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archive: aes.zip
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@@ -138,15 +112,151 @@ files:
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required: false
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size: 131072
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crc32: "16d0c132"
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note: "AES Japan - default for JP region"
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source_ref: "src/geo.c:167-168"
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note: "AES 68K BIOS, Japan region."
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source_ref: "src/geo.c:178-181"
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# Shared ROM (always required for AES)
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- name: "000-lo.lo"
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archive: aes.zip
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system: snk-neogeo-aes
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required: true
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size: 131072
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crc32: "5a86cff2"
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note: "Zoom lookup table (same ROM as in neogeo.zip)"
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source_ref: "src/geo.c:207-208"
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note: "Zoom lookup table."
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source_ref: "src/geo.c:234-243"
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# -----------------------------------------------------------
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# neogeo.zip members
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# -----------------------------------------------------------
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- name: "sp-u2.sp1"
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archive: neogeo.zip
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system: snk-neogeo-mvs
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required: true
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size: 131072
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crc32: "e72943de"
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note: "MVS 68K BIOS, USA. Default for Region USA."
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source_ref: "src/geo.c:183-198"
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- name: "japan-j3.bin"
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archive: neogeo.zip
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system: snk-neogeo-mvs
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required: false
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size: 131072
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crc32: "dff6d41f"
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note: "MVS 68K BIOS, Japan."
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source_ref: "src/geo.c:183-198"
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- name: "sp-45.sp1"
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archive: neogeo.zip
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system: snk-neogeo-mvs
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required: false
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size: 524288
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crc32: "03cc9f6a"
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note: "MVS 68K BIOS, Asia."
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source_ref: "src/geo.c:183-198"
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- name: "sp-s2.sp1"
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archive: neogeo.zip
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system: snk-neogeo-mvs
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required: false
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size: 131072
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crc32: "9036d879"
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note: "MVS 68K BIOS, Europe."
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source_ref: "src/geo.c:183-198"
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- name: "uni-bios_4_0.rom"
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archive: neogeo.zip
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system: snk-neogeo-mvs
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required: false
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size: 131072
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crc32: "a7aab458"
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note: "Universe BIOS 4.0, loaded when System Type is Universe BIOS. Emulated hardware type set by the geolith_unibios_hw option."
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source_ref: "src/geo.c:200-203"
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- name: "000-lo.lo"
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archive: neogeo.zip
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system: snk-neogeo-mvs
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required: true
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size: 131072
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crc32: "5a86cff2"
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note: "Zoom lookup table."
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source_ref: "src/geo.c:234-243"
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- name: "sfix.sfix"
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archive: neogeo.zip
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system: snk-neogeo-mvs
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required: true
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size: 131072
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crc32: "c2ea0cfd"
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note: "System FIX layer tiles. Loaded for MVS and Universe BIOS modes."
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source_ref: "src/geo.c:245-255"
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- name: "sm1.sm1"
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archive: neogeo.zip
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system: snk-neogeo-mvs
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required: true
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size: 131072
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crc32: "94416d67"
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note: "Z80 sound BIOS. Loaded for MVS and Universe BIOS modes."
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source_ref: "src/geo.c:257-267"
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# -----------------------------------------------------------
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# neocd.zip members
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# -----------------------------------------------------------
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- name: "front-sp1.bin"
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archive: neocd.zip
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system: snk-neogeo-cd
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required: false
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note: "Neo Geo CD Front Loader 68K BIOS."
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source_ref: "src/geo.c:204-207"
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- name: "top-sp1.bin"
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archive: neocd.zip
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system: snk-neogeo-cd
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required: false
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note: "Neo Geo CD Top Loader 68K BIOS."
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source_ref: "src/geo.c:208-211"
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- name: "000-lo.lo"
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archive: neocd.zip
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system: snk-neogeo-cd
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required: false
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size: 131072
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crc32: "5a86cff2"
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note: "Zoom lookup table. Extraction is attempted but absence is tolerated in Front/Top Loader mode; the copy in neocdz.zip is used instead."
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source_ref: "src/geo.c:234-243"
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# -----------------------------------------------------------
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# neocdz.zip members
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# -----------------------------------------------------------
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- name: "neocd.bin"
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archive: neocdz.zip
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system: snk-neogeo-cd
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required: true
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note: "Neo Geo CDZ 68K BIOS. Default for CD content."
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source_ref: "src/geo.c:212-215"
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- name: "uni-bioscd33.rom"
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archive: neocdz.zip
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system: snk-neogeo-cd
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required: false
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note: "Universe BIOS CD 3.3, loaded when CD System is CD Universe BIOS."
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source_ref: "src/geo.c:216-219"
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- name: "000-lo.lo"
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archive: neocdz.zip
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system: snk-neogeo-cd
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required: true
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size: 131072
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crc32: "5a86cff2"
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note: "Zoom lookup table. Read from neocdz.zip in every CD mode, including Front/Top Loader."
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source_ref: "src/geo.c:234-243, 273-285, libretro/libretro.c:1241-1248"
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# -----------------------------------------------------------
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# irrmaze.zip member
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# -----------------------------------------------------------
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- name: "236-bios.sp1"
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archive: irrmaze.zip
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system: snk-neogeo-mvs
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required: false
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note: "The Irritating Maze auxiliary 68K BIOS, replaces the MVS BIOS to enable trackball input."
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source_ref: "src/geo.c:286-299, libretro/libretro.c:1300-1311"
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Reference in new issue
Block a user