mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-04-13 12:22:33 -05:00
d2adde9846
add core_classification, cores, upstream fields. fix false aliases (fixnes, fsuae, gearboy, higan_sfc, higan_sfc_balanced, potator, quicknes). add new profiles (fbneo_neogeo, flycast_gles2, genesis_plus_gx_wide). remove verbose notes and disclaimers.
153 lines
4.4 KiB
YAML
153 lines
4.4 KiB
YAML
emulator: Geolith
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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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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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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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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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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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files:
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# -----------------------------------------------------------
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# neogeo.zip - MVS and Universe BIOS
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# -----------------------------------------------------------
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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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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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- 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 Japan (J3) - default for JP region"
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source_ref: "src/geo.c:177"
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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:179"
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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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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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- 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 (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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# -----------------------------------------------------------
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# aes.zip - AES (Home Console)
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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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- name: "neo-po.bin"
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archive: aes.zip
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system: snk-neogeo-aes
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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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# 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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