mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-10-18 01:13:30 -05:00
Abdessamad Derraz
d9c74888e8
ROCKNIX builds a different emulator set per SoC, and without a target list an H700 handheld received the PS2, PS3 and GameCube firmware of emulators its image lacks. The new target scraper reads the emulators metapackage per device; seven cores ROCKNIX ships get profiles and the Super Famicom Box ROMs one of them needs are collected.
181 lines
7.5 KiB
YAML
181 lines
7.5 KiB
YAML
emulator: "Flycast 2021"
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type: libretro
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core_classification: frozen_snapshot
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source: "https://github.com/metallic77/flycast"
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upstream: "https://github.com/libretro/flycast"
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profiled_date: "2026-10-17"
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source_commit: "603814c9f73b773c455d9a497f389d2f93a257fd"
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upstream_commit: "4c293f306bc16a265c2d768af5d0cea138426054"
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pin_frozen: "ROCKNIX 20261001 builds this revision. No branch of metallic77/flycast holds it any more: master was put back on the libretro merge base 4c293f30, so HEAD is the code before the fork's own commits."
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core_version: "0.1"
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display_name: "Sega - Dreamcast/Naomi (Flycast 2021)"
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cores:
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- "flycast2021"
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systems:
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- sega-dreamcast
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- sega-naomi
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- sega-atomiswave
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notes: |
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The libretro/flycast tree as of April 2022 (merge base 4c293f30), from before
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the libretro fork was rebased on flyinghead's Flycast, with 22 commits by
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metallic77 on top that tune defaults and build flags for low-end handhelds.
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ROCKNIX renames the core option prefix from reicast to flycast2021 and
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installs the library as flycast2021_libretro.so.
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ref: core/libretro/libretro.cpp:2296-2300
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Every system file lives in <system>/dc/.
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ref: core/libretro/libretro.cpp:1893-1896
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Dreamcast: the boot ROM is looked for as dc_boot.bin, dc_boot.bin.bin,
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dc_bios.bin, dc_bios.bin.bin, the first that yields a full 2 MB read wins.
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The HLE BIOS core option (hle_bios) defaults to enabled, and when it is on, or
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when no boot ROM loads, reios boots the disc instead. Booting to the BIOS menu,
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or starting without a disc, needs the real boot ROM and fails with -3 without
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it.
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ref: core/hw/holly/sb_mem.cpp:32-65, core/hw/holly/sb_mem.cpp:215-233,
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core/hw/flashrom/flashrom.h:54-67, core/hw/flashrom/flashrom.h:84-118,
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core/nullDC.cpp:420-431, core/nullDC.cpp:455-463,
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core/libretro/libretro_core_options.h:133-145, core/libretro/libretro.cpp:726-731
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NAOMI and Atomiswave: a BIOS archive is opened as <system>/dc/<name> with .7z
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then .zip appended. Each member is looked for in the game archive, its parent,
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then the BIOS archive, by CRC32 and then by name; the BIOS table carries no
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CRC32, so only the name matches. The member for the configured region is
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tried first, then the first member listed. A game whose table entry names a
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BIOS refuses to start without it; the others default to naomi. Five archive
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names are reachable from the game table: naomi, awbios, f355bios, f355dlx,
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hod2bios. airlbios and naomigd have table entries but no game names them.
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ref: core/hw/naomi/naomi_cart.cpp:76-176, core/hw/naomi/naomi_cart.cpp:227-247,
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core/archive/archive.cpp:26-42, core/hw/naomi/naomi_roms.h:76-217
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LoadRomFiles also reads naomi_boot.bin, naomi_boot.bin.bin, naomi_bios.bin,
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naomi_bios.bin.bin and epr-21576d.bin for NAOMI, but naomi_cart_Close clears
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bios_loaded before the cartridge loads, so that file never stands in for
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naomi.zip.
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ref: core/hw/holly/sb_mem.cpp:59, core/hw/naomi/naomi_cart.cpp:427-444,
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core/hw/naomi/naomi_cart.cpp:472-484
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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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note: "Read as 2 MB into the system ROM; a shorter file is rejected. Needed only to boot to the BIOS menu or when the HLE BIOS option is disabled."
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source_ref: "core/hw/holly/sb_mem.cpp:50-65, core/hw/holly/sb_mem.cpp:215-229, core/hw/flashrom/flashrom.h:54-67, core/nullDC.cpp:420-431"
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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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min_size: 131072
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validation: [size]
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description: "Dreamcast flash ROM"
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note: "Loaded with the boot ROM and by the HLE path; a missing file leaves the flash blank and the core runs. Written back as dc_nvmem.bin."
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source_ref: "core/hw/holly/sb_mem.cpp:196-213, core/hw/holly/sb_mem.cpp:231, core/hw/holly/sb_mem.cpp:236-243, core/hw/holly/sb_mem.cpp:271-278"
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- name: "font.bin"
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path: "dc/font.bin"
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system: sega-dreamcast
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required: false
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description: "Dreamcast system font for the HLE BIOS"
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note: "Read whole into the font table of the reios ROM image. Absent, a built-in font is copied there."
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source_ref: "core/reios/reios.cpp:736-755"
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- name: "naomi.zip"
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path: "dc/naomi.zip"
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category: bios_zip
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system: sega-naomi
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required: true
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description: "NAOMI BIOS archive"
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note: "Default BIOS of every NAOMI game whose table entry names none, cartridge, .lst, .bin and .dat images alike. One member is loaded: the one for the configured region, else epr-21576h.ic27."
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source_ref: "core/hw/naomi/naomi_roms.h:132-189, core/hw/naomi/naomi_cart.cpp:227-247, core/hw/naomi/naomi_cart.cpp:472-484"
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contents:
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- name: "epr-21576h.ic27"
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size: 2097152
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description: "Japan"
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- name: "epr-21578h.ic27"
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size: 2097152
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description: "Export"
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- name: "epr-21577h.ic27"
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size: 2097152
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description: "USA"
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- name: "epr-21579d.ic27"
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size: 2097152
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description: "Korea"
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- name: "awbios.zip"
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path: "dc/awbios.zip"
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category: bios_zip
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system: sega-atomiswave
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required: true
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description: "Atomiswave BIOS archive"
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note: "Named by all 34 Atomiswave games. Loaded into the flash chip, whose writable part is then reloaded from the save directory."
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source_ref: "core/hw/naomi/naomi_roms.h:86-94, core/hw/naomi/naomi_cart.cpp:89-92, core/hw/naomi/naomi_cart.cpp:171-173"
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contents:
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- name: "bios0.ic23"
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size: 131072
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- name: "f355bios.zip"
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path: "dc/f355bios.zip"
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category: bios_zip
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system: sega-naomi
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required: true
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description: "Ferrari F355 Challenge BIOS archive"
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note: "Named by three Ferrari F355 Challenge entries, which refuse to start without it."
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source_ref: "core/hw/naomi/naomi_roms.h:95-103, core/hw/naomi/naomi_cart.cpp:238-243"
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contents:
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- name: "epr-22851.ic27"
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size: 2097152
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description: "Export"
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- name: "epr-22850.ic27"
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size: 2097152
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description: "USA"
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- name: "epr-22849.ic27"
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size: 2097152
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description: "Japan"
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- name: "f355dlx.zip"
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path: "dc/f355dlx.zip"
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category: bios_zip
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system: sega-naomi
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required: true
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description: "Ferrari F355 Challenge Deluxe BIOS archive"
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note: "Named by the f355 entry, which refuses to start without it."
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source_ref: "core/hw/naomi/naomi_roms.h:104-119, core/hw/naomi/naomi_roms.h:1701, core/hw/naomi/naomi_cart.cpp:238-243"
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contents:
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- name: "epr-21864.ic27"
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size: 2097152
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description: "Export"
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- name: "epr-21863.ic27"
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size: 2097152
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description: "USA"
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- name: "epr-21862.ic27"
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size: 2097152
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description: "Japan"
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- name: "hod2bios.zip"
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path: "dc/hod2bios.zip"
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category: bios_zip
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system: sega-naomi
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required: true
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description: "The House of the Dead 2 BIOS archive"
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note: "Named by four House of the Dead 2 entries, which refuse to start without it."
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source_ref: "core/hw/naomi/naomi_roms.h:120-131, core/hw/naomi/naomi_cart.cpp:238-243"
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contents:
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- name: "epr-21331.ic27"
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size: 2097152
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description: "Export"
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- name: "epr-21330.ic27"
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size: 2097152
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description: "USA"
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- name: "epr-21329.ic27"
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size: 2097152
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description: "Japan"
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