mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-10-24 04:39:06 -05:00
Abdessamad Derraz
37a5bd05ff
Ten notes and comments called .info entries phantom, misleading or incorrectly written. They now say what the .info declares and what the code reads, and a prose test refuses those verdicts in profiles.
125 lines
4.0 KiB
YAML
125 lines
4.0 KiB
YAML
emulator: NeoCD
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type: libretro
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core_classification: pure_libretro
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source: "https://github.com/libretro/neocd_libretro"
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upstream: "https://github.com/libretro/neocd_libretro"
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profiled_date: "2026-03-24"
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source_commit: "b1e04c738cb48a1dae0574b8877f6a116d270ca1"
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core_version: "2022"
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display_name: "SNK - Neo Geo CD (NeoCD)"
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cores:
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- neocd
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systems:
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- snk-neogeo-cd
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notes: |
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Complete rewrite of NeoCD in C++11. Scans {system_dir}/neocd/ for any .rom
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or .bin file, also inside .zip archives (src/libretro_bios.cpp:70-106,
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src/path.cpp:7 NEOCD_SYSTEM_SUBDIR = "neocd").
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BIOS identified by binary pattern matching at fixed ROM addresses, not by
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filename (src/bios.cpp:167-206). Files are auto byte-swapped if needed
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(src/bios.cpp:148-160). Files smaller than 524288 bytes are skipped
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(src/libretro_bios.cpp:43).
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Three hardware families detected: Front Loader, Top Loader, CDZ. Modified
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variants recognized: SMKDan 0.07, SMKDan 0.07b, Universe BIOS 3.2,
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Universe BIOS 3.3 (src/bios.h:11-27). Any single valid BIOS is sufficient;
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selection via core options dropdown sorted alphabetically.
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Y-ZOOM ROM (ng-lo.rom / 000-lo.lo) listed in .info but generated
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algorithmically, never loaded from file (src/memory.cpp:223-253
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generateYZoomData, CRC32 E09E253C), so the core never opens these files.
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.info declares firmware_count=12. The core reads 10 of them and builds
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the two Y-ZOOM entries itself.
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.info lists uni-bioscd.rom as "Universe BIOS 3.2" but SHA1 matches
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Universe BIOS 3.3 (confirmed by GitHub README).
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files:
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# --- Front Loader family ---
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- name: neocd_f.rom
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path: "neocd/neocd_f.rom"
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system: snk-neogeo-cd
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required: false
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size: 524288
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note: "Front Loader BIOS (big-endian, NeoCD naming)"
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source_ref: "src/bios.cpp:59 FRONT_LOADER_SEARCH_PATTERN at 0xC0006C"
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- name: front-sp1.bin
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path: "neocd/front-sp1.bin"
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system: snk-neogeo-cd
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required: false
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size: 524288
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note: "Front Loader BIOS (little-endian, MAME naming)"
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source_ref: "src/bios.cpp:59 FRONT_LOADER_SEARCH_PATTERN, src/bios.cpp:148-160 autoByteSwap"
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- name: neocd_sf.rom
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path: "neocd/neocd_sf.rom"
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system: snk-neogeo-cd
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required: false
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size: 524288
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note: "Front Loader BIOS, SMKDan 0.07b"
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source_ref: "src/bios.cpp:62 SMKDANBETA_FRONT_SEARCH_PATTERN at 0xC00004"
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# --- Top Loader family ---
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- name: neocd_t.rom
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path: "neocd/neocd_t.rom"
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system: snk-neogeo-cd
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required: false
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size: 524288
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note: "Top Loader BIOS (big-endian, NeoCD naming)"
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source_ref: "src/bios.cpp:60 TOP_LOADER_SEARCH_PATTERN at 0xC0006C"
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- name: top-sp1.bin
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path: "neocd/top-sp1.bin"
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system: snk-neogeo-cd
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required: false
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size: 524288
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note: "Top Loader BIOS (little-endian, MAME naming)"
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source_ref: "src/bios.cpp:60 TOP_LOADER_SEARCH_PATTERN, src/bios.cpp:148-160 autoByteSwap"
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- name: neocd_st.rom
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path: "neocd/neocd_st.rom"
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system: snk-neogeo-cd
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required: false
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size: 524288
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note: "Top Loader BIOS, SMKDan 0.07b"
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source_ref: "src/bios.cpp:63 SMKDANBETA_TOP_SEARCH_PATTERN at 0xC00004"
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# --- CDZ family ---
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- name: neocd_z.rom
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path: "neocd/neocd_z.rom"
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system: snk-neogeo-cd
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required: false
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size: 524288
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note: "CDZ BIOS (big-endian, NeoCD naming)"
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source_ref: "src/bios.cpp:61 CDZ_SEARCH_PATTERN at 0xC0006C"
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- name: neocd.bin
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path: "neocd/neocd.bin"
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system: snk-neogeo-cd
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required: false
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size: 524288
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note: "CDZ BIOS (little-endian, MAME naming)"
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source_ref: "src/bios.cpp:61 CDZ_SEARCH_PATTERN, src/bios.cpp:148-160 autoByteSwap"
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- name: neocd_sz.rom
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path: "neocd/neocd_sz.rom"
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system: snk-neogeo-cd
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required: false
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size: 524288
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note: "CDZ BIOS, SMKDan 0.07b"
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source_ref: "src/bios.cpp:64 SMKDANBETA_CDZ_SEARCH_PATTERN at 0xC00004"
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- name: uni-bioscd.rom
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path: "neocd/uni-bioscd.rom"
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system: snk-neogeo-cd
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required: false
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size: 524288
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note: "Universe BIOS 3.3, CDZ-based third-party multi-region BIOS"
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source_ref: "src/bios.cpp:68 UNIVERSE33_SEARCH_PATTERN at 0xC00150"
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