{ "commit": "fbe5ba4e3e790ab07eddc5b57e0f45a02cbcd60e", "count": 1, "generated_at": "2026-10-24T00:06:47Z", "items": [ { "id": "flycast2021le", "profile": { "built_by": [ "amberelec" ], "core_classification": "enhanced_fork", "core_version": "0.1", "cores": [ "flycast2021le" ], "display_name": "Sega - Dreamcast/Naomi (Flycast 2021 LE)", "emulator": "Flycast 2022 Low-End", "files": [ { "aliases": [ "dc_boot.bin.bin", "dc_bios.bin", "dc_bios.bin.bin" ], "description": "Dreamcast boot ROM", "hle_fallback": true, "min_size": 2097152, "name": "dc_boot.bin", "note": "Read as 2 MB into the system ROM, and a shorter file is rejected. Needed only to boot to the BIOS menu or to start without a disc.", "path": "dc/dc_boot.bin", "required": false, "source_ref": "source core/hw/holly/sb_mem.cpp:51-65, source core/hw/holly/sb_mem.cpp:215-229, source core/hw/flashrom/flashrom.h:54-67, source core/nullDC.cpp:420-431", "system": "sega-dreamcast", "validation": [ "size" ] }, { "aliases": [ "dc_flash_wb.bin", "dc_flash.bin", "dc_flash.bin.bin" ], "description": "Dreamcast flash ROM", "min_size": 131072, "name": "dc_nvmem.bin", "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.", "path": "dc/dc_nvmem.bin", "required": false, "source_ref": "source core/hw/holly/sb_mem.cpp:196-213, source core/hw/holly/sb_mem.cpp:231, source core/hw/holly/sb_mem.cpp:236-243, source core/hw/holly/sb_mem.cpp:271-278", "system": "sega-dreamcast", "validation": [ "size" ] }, { "description": "Dreamcast system font for the HLE BIOS", "name": "font.bin", "note": "Read whole into the font table of the reios ROM image. Absent, a built-in font is copied there.", "path": "dc/font.bin", "required": false, "source_ref": "source core/reios/reios.cpp:736-755", "system": "sega-dreamcast" }, { "category": "bios_zip", "contents": [ { "description": "Japan", "name": "epr-21576h.ic27", "size": 2097152 }, { "description": "Export", "name": "epr-21578h.ic27", "size": 2097152 }, { "description": "USA", "name": "epr-21577h.ic27", "size": 2097152 }, { "description": "Korea", "name": "epr-21579d.ic27", "size": 2097152 } ], "description": "NAOMI BIOS archive", "name": "naomi.zip", "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.", "path": "dc/naomi.zip", "required": true, "source_ref": "source core/hw/naomi/naomi_roms.h:132-189, source core/hw/naomi/naomi_cart.cpp:227-247, source core/hw/naomi/naomi_cart.cpp:473-485", "system": "sega-naomi" }, { "category": "bios_zip", "contents": [ { "name": "bios0.ic23", "size": 131072 } ], "description": "Atomiswave BIOS archive", "name": "awbios.zip", "note": "Named by all 34 Atomiswave games. Loaded into the flash chip, whose writable part is then reloaded from the save directory.", "path": "dc/awbios.zip", "required": true, "source_ref": "source core/hw/naomi/naomi_roms.h:86-94, source core/hw/naomi/naomi_cart.cpp:89-93, source core/hw/naomi/naomi_cart.cpp:171-173", "system": "sega-atomiswave" }, { "category": "bios_zip", "contents": [ { "description": "Export", "name": "epr-22851.ic27", "size": 2097152 }, { "description": "USA", "name": "epr-22850.ic27", "size": 2097152 }, { "description": "Japan", "name": "epr-22849.ic27", "size": 2097152 } ], "description": "Ferrari F355 Challenge BIOS archive", "name": "f355bios.zip", "note": "Named by three Ferrari F355 Challenge entries, which refuse to start without it.", "path": "dc/f355bios.zip", "required": true, "source_ref": "source core/hw/naomi/naomi_roms.h:95-103, source core/hw/naomi/naomi_cart.cpp:238-243", "system": "sega-naomi" }, { "category": "bios_zip", "contents": [ { "description": "Export", "name": "epr-21864.ic27", "size": 2097152 }, { "description": "USA", "name": "epr-21863.ic27", "size": 2097152 }, { "description": "Japan", "name": "epr-21862.ic27", "size": 2097152 } ], "description": "Ferrari F355 Challenge Deluxe BIOS archive", "name": "f355dlx.zip", "note": "Named by the f355 entry, which refuses to start without it.", "path": "dc/f355dlx.zip", "required": true, "source_ref": "source core/hw/naomi/naomi_roms.h:104-119, source core/hw/naomi/naomi_roms.h:1701, source core/hw/naomi/naomi_cart.cpp:238-243", "system": "sega-naomi" }, { "category": "bios_zip", "contents": [ { "description": "Export", "name": "epr-21331.ic27", "size": 2097152 }, { "description": "USA", "name": "epr-21330.ic27", "size": 2097152 }, { "description": "Japan", "name": "epr-21329.ic27", "size": 2097152 } ], "description": "The House of the Dead 2 BIOS archive", "name": "hod2bios.zip", "note": "Named by four House of the Dead 2 entries, which refuse to start without it.", "path": "dc/hod2bios.zip", "required": true, "source_ref": "source core/hw/naomi/naomi_roms.h:120-131, source core/hw/naomi/naomi_cart.cpp:238-243", "system": "sega-naomi" } ], "notes": "The libretro/flycast tree of 6 April 2022 (4c293f30, the repository now\nanswers as libretro/parallel-dc) with 21 commits by navy1978 on top that add\noptional CPU, renderer and audio paths for RK3326/RK3566 handhelds. None of\nthem touches the code that opens system files.\nAmberELEC builds this revision, renames the core option prefix from reicast\nto flycast2021le and installs the library as flycast2021le_libretro.so.\nref: AmberELEC packages/games/libretro/flycast2021le/package.mk:5,19,50\n\nEvery system file lives in /dc/.\nref: core/libretro/libretro.cpp:2189-2193\n\nDreamcast: the boot ROM is looked for as dc_boot.bin, dc_boot.bin.bin,\ndc_bios.bin, dc_bios.bin.bin, the first that yields a full 2 MB read wins.\nThe HLE BIOS core option defaults to disabled. When no boot ROM loads, reios\nboots the disc instead. Booting to the BIOS menu, or starting without a disc,\nneeds the real boot ROM and fails with -3 without it.\nref: core/hw/holly/sb_mem.cpp:51-65, core/hw/holly/sb_mem.cpp:215-233,\n core/hw/flashrom/flashrom.h:54-67, core/hw/flashrom/flashrom.h:84-118,\n core/nullDC.cpp:420-431, core/nullDC.cpp:455-463,\n core/libretro/libretro_core_options.h:226-239, core/libretro/libretro.cpp:885-890\n\nNAOMI and Atomiswave: a BIOS archive is opened as /dc/ with .7z\nthen .zip appended. Each member is looked for in the game archive, its parent,\nthen the BIOS archive, by CRC32 and then by name. The BIOS table carries no\nCRC32, so only the name matches. The member for the configured region is\ntried first, then the first member listed. A game whose table entry names a\nBIOS refuses to start without it, and the others default to naomi. Five archive\nnames are reachable from the game table: naomi, awbios, f355bios, f355dlx,\nhod2bios. airlbios and naomigd have table entries but no game names them.\nref: core/hw/naomi/naomi_cart.cpp:77-180, core/hw/naomi/naomi_cart.cpp:227-247,\n core/archive/archive.cpp:26-42, core/hw/naomi/naomi_roms.h:76-213\n\nLoadRomFiles also reads naomi_boot.bin, naomi_boot.bin.bin, naomi_bios.bin,\nnaomi_bios.bin.bin and epr-21576d.bin for NAOMI, but naomi_cart_LoadRom calls\nnaomi_cart_Close, which clears bios_loaded, before the cartridge loads, so\nthat file never stands in for naomi.zip.\nref: core/hw/holly/sb_mem.cpp:59, core/nullDC.cpp:432-435, core/nullDC.cpp:77-81,\n core/hw/naomi/naomi_cart.cpp:427-450, core/hw/naomi/naomi_cart.cpp:473-485\n", "pin_frozen": "AmberELEC, the only platform that ships it, builds this revision (AmberELEC packages/games/libretro/flycast2021le/package.mk:5). Later commits are not part of that build.", "profiled_date": "2026-10-22", "source": "https://github.com/navy1978/flycast2022-lowend", "source_commit": "bf93aece5db7050667075a1107ab380856b44a23", "systems": [ "sega-dreamcast", "sega-naomi", "sega-atomiswave" ], "type": "libretro", "upstream": "https://github.com/libretro/parallel-dc", "upstream_commit": "4c293f306bc16a265c2d768af5d0cea138426054" } } ], "kind": "emulators", "schema_version": 1 }