mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-10-18 09:23:26 -05:00
Abdessamad Derraz
a8bfadd4c1
Recalbox builds seven board images with different emulators. The new target scraper reads each board's defconfig against the package every system.ini core names. The names that reached no profile are mapped to the projects Recalbox builds or profiled from their source, and the mupen64plus video plugins are set aside.
64 lines
2.6 KiB
YAML
64 lines
2.6 KiB
YAML
emulator: Reicast
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type: standalone
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core_classification: community_fork
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source: "https://github.com/reicast/reicast-emulator"
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upstream: "https://github.com/reicast/reicast-emulator"
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profiled_date: "2026-10-17"
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source_commit: "ad61f95dd6b4c6218846a25de6194550311a5d28"
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core_version: "Git"
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display_name: "Sega - Dreamcast (Reicast)"
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cores:
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- "reicast"
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systems:
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- "sega-dreamcast"
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notes: |
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Dreamcast emulator descended from nullDC. The Linux build is compiled
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for one platform; the default is dreamcast, which sets the ROM prefix
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dc_, a 2 MB boot ROM, a 128 KB flash and NVR_OPTIONAL 0
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(ref: core/types.h:209-217).
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LoadRomFiles() tries dc_boot.bin, dc_boot.bin.bin, dc_bios.bin and
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dc_bios.bin.bin for the boot ROM, then dc_nvmem.bin, dc_flash_wb.bin,
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dc_flash.bin and dc_flash.bin.bin for the flash
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(ref: core/hw/holly/sb_mem.cpp:30-51). Each candidate is accepted
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when a full chip's worth of bytes can be read from it
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(ref: core/hw/flashrom/flashrom.h:39-49, 61-99). No hash is checked.
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With NVR_OPTIONAL 0 a missing flash fails LoadRomFiles() the same way
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a missing boot ROM does.
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When LoadRomFiles() fails, or the reios setting is on, the core starts
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its HLE BIOS instead and loads only the flash, if present
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(ref: core/nullDC.cpp:183-200, core/hw/holly/sb_mem.cpp:58-64).
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Upstream resolves the directory as <data dir>/data/, the data dir
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being $XDG_DATA_HOME/reicast or ~/.local/share/reicast, then each
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$XDG_DATA_DIRS entry plus /reicast (ref: core/stdclass.cpp:83-100,
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core/linux-dist/main.cpp:287-326, 355-379). Recalbox patches
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nullDC.cpp to read and write both files in /recalbox/share/bios/dc/,
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which is the path given below.
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files:
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- name: "dc_boot.bin"
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path: "dc/dc_boot.bin"
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aliases: ["dc_boot.bin.bin", "dc_bios.bin", "dc_bios.bin.bin"]
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system: "sega-dreamcast"
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required: false
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hle_fallback: true
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min_size: 2097152
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validation: [size]
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description: "Dreamcast boot ROM"
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source_ref: "core/hw/holly/sb_mem.cpp:20, 30-36, core/types.h:211, 215"
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note: "First of the four names that reads 2097152 bytes wins. Missing, the HLE BIOS runs."
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- name: "dc_nvmem.bin"
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path: "dc/dc_nvmem.bin"
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aliases: ["dc_flash_wb.bin", "dc_flash.bin", "dc_flash.bin.bin"]
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system: "sega-dreamcast"
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required: false
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hle_fallback: true
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min_size: 131072
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validation: [size]
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description: "Dreamcast flash memory"
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source_ref: "core/hw/holly/sb_mem.cpp:22-23, 37-48, 58-64, core/types.h:212, 217"
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note: "Written back as dc_nvmem.bin on exit. Missing, LoadRomFiles() fails even with a boot ROM present and the HLE BIOS runs."
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