mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-04-14 04:42:32 -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.
223 lines
7.3 KiB
YAML
223 lines
7.3 KiB
YAML
emulator: Flycast
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type: standalone + libretro
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core_classification: official_port
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source: "https://github.com/libretro/flycast"
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upstream: "https://github.com/flyinghead/flycast"
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logo: "https://raw.githubusercontent.com/flyinghead/flycast/master/shell/linux/flycast.png"
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profiled_date: "2026-03-21"
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core_version: "Git"
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display_name: "Sega - Dreamcast/Naomi (Flycast)"
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cores:
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- flycast
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systems:
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- sega-dreamcast
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- sega-naomi
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- sega-naomi2
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- sega-atomiswave
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# sega-systemsp: supported by upstream but not by the libretro port
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notes: |
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Flycast has a built-in HLE BIOS (reios) for Dreamcast that can boot most
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games without real BIOS files. Arcade systems (NAOMI, NAOMI2, Atomiswave,
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System SP) require MAME-format BIOS ROM archives.
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Hikaru and Triforce are NOT supported by Flycast.
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BIOS file search uses prefix + name pattern. The libretro port appends "dc/"
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to the system directory (libretro.cpp:1866). All files below are relative
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to system_dir/dc/.
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File loading logic: core/hw/flashrom/nvmem.cpp loadFiles() and
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core/hw/naomi/naomi_cart.cpp loadBios().
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The prefix is determined by platform (sb_mem.cpp:32-49):
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Dreamcast -> dc_
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Dev Unit -> hkt_
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NAOMI -> naomi_
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NAOMI 2 -> n2_ (libretro port; upstream uses naomi2_)
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Atomiswave -> (no prefix, BIOS loaded from awbios.zip)
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Boot ROM search pattern (sb_mem.cpp:57):
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{prefix}boot.bin, {prefix}boot.bin.bin, {prefix}bios.bin, {prefix}bios.bin.bin
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NAOMI also tries: epr-21576d.bin (sb_mem.cpp:59)
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Flash/NVRAM search pattern (sb_mem.cpp:231):
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{prefix}nvmem.bin, {prefix}flash_wb.bin, {prefix}flash.bin, {prefix}flash.bin.bin
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files:
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# -------------------------------------------------------
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# Sega Dreamcast
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# -------------------------------------------------------
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- name: "dc_boot.bin"
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path: "dc/dc_boot.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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size: 2097152 # 2 MB
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note: "Dreamcast boot ROM. HLE BIOS (reios) used as fallback."
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source_ref: "core/hw/flashrom/nvmem.cpp:287"
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- name: "dc_bios.bin"
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path: "dc/dc_bios.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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size: 2097152
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note: "Alternate name for Dreamcast boot ROM."
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source_ref: "core/hw/flashrom/nvmem.cpp:287"
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- name: "dc_flash.bin"
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path: "dc/dc_flash.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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size: 131072 # 128 KB
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note: "Dreamcast flash memory. One of the nvmem search names."
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source_ref: "core/hw/holly/sb_mem.cpp:231"
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- name: "dc_nvmem.bin"
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path: "dc/dc_nvmem.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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size: 131072
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note: "Dreamcast NVRAM (primary search name for flash)."
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source_ref: "core/hw/holly/sb_mem.cpp:231"
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- name: "dc_flash_wb.bin"
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path: "dc/dc_flash_wb.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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size: 131072
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note: "Dreamcast flash writeback."
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source_ref: "core/hw/holly/sb_mem.cpp:231"
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# -------------------------------------------------------
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# Sega NAOMI
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# -------------------------------------------------------
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- name: "naomi_boot.bin"
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path: "dc/naomi_boot.bin"
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system: sega-naomi
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required: false
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size: 2097152 # 2 MB
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note: "NAOMI boot ROM (flat binary). Alternative to naomi.zip."
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source_ref: "core/hw/flashrom/nvmem.cpp:287"
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- name: "naomi.zip"
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path: "dc/naomi.zip"
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system: sega-naomi
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required: true
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note: >
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NAOMI system BIOS archive (MAME format). Contains region-specific
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BIOS ROMs: epr-21576h.ic27 (Japan), epr-21577h.ic27 (USA),
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epr-21578h.ic27 (Export), epr-21579d.ic27 (Korea).
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source_ref: "core/hw/naomi/naomi_roms.cpp:87-143"
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# NAOMI special BIOS sets (game-specific, loaded from game archive or standalone)
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- name: "airlbios.zip"
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path: "dc/airlbios.zip"
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system: sega-naomi
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required: false
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note: "Airline Pilots Deluxe BIOS. epr-21802.ic27 (Export), epr-21801.ic27 (USA)."
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source_ref: "core/hw/naomi/naomi_roms.cpp:30-37"
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- name: "f355bios.zip"
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path: "dc/f355bios.zip"
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system: sega-naomi
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required: false
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note: "Ferrari F355 Challenge BIOS. Japan/USA/Export variants."
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source_ref: "core/hw/naomi/naomi_roms.cpp:49-58"
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- name: "f355dlx.zip"
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path: "dc/f355dlx.zip"
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system: sega-naomi
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required: false
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note: "Ferrari F355 Challenge Deluxe BIOS. Japan/USA/Export variants."
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source_ref: "core/hw/naomi/naomi_roms.cpp:60-74"
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- name: "hod2bios.zip"
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path: "dc/hod2bios.zip"
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system: sega-naomi
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required: false
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note: "House of the Dead 2 BIOS. Japan/USA/Export variants."
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source_ref: "core/hw/naomi/naomi_roms.cpp:76-85"
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- name: "naomigd.zip"
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path: "dc/naomigd.zip"
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system: sega-naomi
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required: false
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note: "NAOMI GD-ROM BIOS. Used by GD-ROM based NAOMI games."
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source_ref: "core/hw/naomi/naomi_roms.cpp:158-181"
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# -------------------------------------------------------
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# Sega NAOMI 2
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# -------------------------------------------------------
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- name: "n2_boot.bin"
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path: "dc/n2_boot.bin"
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aliases: ["naomi2_boot.bin"]
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mode: libretro
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system: sega-naomi2
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required: false
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size: 2097152 # 2 MB
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note: "NAOMI 2 boot ROM. Core uses n2_ prefix to avoid name collision in shared dc/ directory. Upstream standalone uses naomi2_ prefix."
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source_ref: "core/hw/holly/sb_mem.cpp:43,57"
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- name: "naomi2.zip"
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path: "dc/naomi2.zip"
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system: sega-naomi2
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required: true
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note: >
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NAOMI 2 system BIOS archive (MAME format). Contains region-specific
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ROMs: epr-23605c.ic27 (Japan), epr-23607c.ic27 (USA),
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epr-23608c.ic27 (Export), epr-23609b.ic27 (Korea).
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source_ref: "core/hw/naomi/naomi_roms.cpp:183-201"
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# -------------------------------------------------------
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# Sega Atomiswave
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# -------------------------------------------------------
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- name: "awbios.zip"
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path: "dc/awbios.zip"
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system: sega-atomiswave
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required: true
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note: >
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Atomiswave system BIOS archive (MAME format). Contains
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bios0.ic23 (Sammy, 128 KB). BIOS size is 128 KB.
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source_ref: "core/hw/naomi/naomi_roms.cpp:39-48"
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# -------------------------------------------------------
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# Sega System SP
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# -------------------------------------------------------
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# segasp.zip: supported by upstream (flyinghead/flycast) but NOT by the
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# libretro port (naomi_roms.cpp absent from libretro fork). Lacune du port.
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platform_details:
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dreamcast:
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bios_size: 2097152 # 2 MB
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flash_size: 131072 # 128 KB
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ram_size: 16777216 # 16 MB (32 MB with mod)
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hle_available: true
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source_ref: "core/emulator.cpp:446-452"
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naomi:
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bios_size: 2097152 # 2 MB
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flash_size: 32768 # 32 KB (battery-backed SRAM)
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ram_size: 33554432 # 32 MB
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hle_available: false
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source_ref: "core/emulator.cpp:453-459"
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naomi2:
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bios_size: 2097152 # 2 MB
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flash_size: 32768 # 32 KB (battery-backed SRAM)
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ram_size: 33554432 # 32 MB
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eram_size: 33554432 # 32 MB (ELAN)
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hle_available: false
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source_ref: "core/emulator.cpp:460-467"
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atomiswave:
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bios_size: 131072 # 128 KB
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flash_size: 131072 # 128 KB (SRAM)
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ram_size: 16777216 # 16 MB
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hle_available: false
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source_ref: "core/emulator.cpp:468-474"
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# systemsp: supported by upstream but not by the libretro port
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