emulator: Demul
type: standalone
source: "https://demul.emulation64.com"
upstream: closed-source
version_source:
  url: "http://demul.emulation64.com/"
  pattern: '<div class="normaltext">\[[^\]]*\] DEmul (\d+\.\d+)'
profiled_date: "2026-11-05"
core_version: "0.7"
version_basis:
  kind: package
  url: "https://www.retrobat.ovh/repo/win64/stable/emulators/demul.7z"
  artifact: "demul.7z, demul.exe banner (0x53232c-0x53235a)"
display_name: "Sega - Dreamcast/NAOMI/Hikaru (Demul)"
cores:
  - demul
systems:
  - sega-dreamcast
  - sega-naomi
  - sega-naomi2
  - sega-hikaru
  - sammy-atomiswave
  - sega-system-sp
  - gaelco-powervr
  - cave-cv1000
mode: standalone

notes: |
  Closed Windows emulator for the Dreamcast and the arcade boards built on it.
  The build read is demul.exe 0.7 dated 20 December 2025, sha1
  e326ae663c97e5982e40dbbfe7d02a0c38bd426a. RetroBat installs it from
  demul.7z and Batocera 43.1 ships it as demul_251220.7z: both archives carry
  the same executable. Batocera runs it under Wine. It is a 32-bit PE
  with no packer, and every address below is a virtual address in it.

  The BIOS images are rows of seven tables of 28-byte records (id, description,
  set, member, size, crc32, sha1), registered at startup (0x544270-0x5443cf):
  dc 0x6b4d80, naomi 0x6b46b8 (whose rows name the sets naomi, naomi2 and
  segasp), awbios 0x6b4648, hikaru 0x6b44a0, segadimm 0x6b4530, mie 0x6b4468
  and crp 0x6b4430. The machine loader (0x53c300-0x53d5d3) takes one row per
  board and passes its set, member, size, crc32 and sha1 to the file loader
  (0x53daa0-0x53eb8c). For each [files] romsN path that loader tries the loose
  file <romsN>\<set>\<member>, then <romsN>\<set>.zip, then <romsN>\<set>.7z.
  Inside an archive a member is taken when its name or its crc32 matches, and
  is then rejected on a wrong size, crc32 or sha1 ("Wrong size", "Wrong Crc32",
  "Wrong SHA1 of '...' in romset '...'"). When no path holds it the loader
  shows "Unable to find '<member>' in romset '<set>'" and returns false.

  The row comes from the Demul.ini [main] index of the board (dreamBios,
  naomiBios, atomiswaveBios, hikaruBios, [dimm] bios), or from the -bios=
  switch. An index past the end of its table is reset to 0 (0x535963-0x5359d5)
  and none of the platforms writes these keys, so the first row is the one read
  by default. With naomiBiosAuto or hikaruBiosAuto the row is the one the game
  record names (0x53ec90). Each set below therefore lists every row Demul may
  read, and one of them is enough.

  The sets are MAME-style archives, with older MAME groupings: the House of the
  Dead 2, F355 Challenge and Airline Pilots BIOS rows belong to the naomi set,
  so Demul reads them from naomi.zip and never opens hod2bios.zip, f355bios.zip,
  f355dlx.zip or airlbios.zip. No string or record names those archives,
  naomigd.zip, jvs13551.zip, dc_boot.bin or dc_flash.bin. The flash and EEPROM
  images (.flash, .eeprom, .sram) live in the nvram directory and are written by
  the emulator (0x544b20).

  The crp set (crp-1231br-10_ver01.07.epr, CRP firmware, crc32 d1ba64b3) is
  registered at 0x544348-0x54436f but no code reads its table to load a file.

  Batocera points roms0 at the BIOS directory, RetroBat writes roms0 =
  bios\dc and roms1 = bios, so both find these sets at the BIOS root. Gaelco
  PowerVR and Cave CV1000 games read no BIOS set.

files:
  - name: dc.zip
    system: sega-dreamcast
    required: true
    category: bios_zip
    note: "Dreamcast boot ROM set, read by -run=dc. The dreamBios row is loaded into the 2 MB boot area and a failed load stops the start. Without a Demul.ini key the first row, mpr-23588.ic501 (v1.022), is the one read."
    source_ref: "demul.exe 0x6b4d80-0x6b4ea3 (dc table), 0x53c338-0x53c36f (dreamBios row), 0x53ca4d-0x53ca7e (load, fatal), 0x535963-0x535979 (index reset)"
    contents:
      - name: "mpr-23588.ic501"
        description: "Dreamcast v1.022 (World)"
        size: 2097152
        crc32: "786168f9"
        sha1: "ba8bbb90fdb29525f24f17055dc2c7b2d7674437"
      - name: "mpr-21931.ic501"
        description: "Dreamcast v1.01d (World)"
        size: 2097152
        crc32: "89f2b1a1"
        sha1: "8951d1bb219ab2ff8583033d2119c899cc81f18c"
      - name: "1_01d_02.bin"
        description: "Dreamcast v1.01d [T+Chi]"
        size: 2097152
        crc32: "a2564fad"
        sha1: "edc5d3d70a93c935703d26119b37731fd317d2bf"
      - name: "mpr-21871.ic501"
        description: "Dreamcast v1.01c (World)"
        size: 2097152
        crc32: "2f551bc5"
        sha1: "1ede8d5be49116a4c6f3fe0961175469537a0434"
      - name: "mpr-21068.ic501"
        description: "Dreamcast v1.004 (Japan)"
        size: 2097152
        crc32: "5454841f"
        sha1: "1ea132c0fbbf07ef76789eadc07908045c089bd6"
      - name: "set5v1.011.ic507"
        description: "Katana Set5 v1.011 (World)"
        size: 2097152
        crc32: "2186e0e5"
        sha1: "6bd18fb83f8fdb56f1941e079580e5dd672a6dad"
      - name: "set5v1.001.ic507"
        description: "Katana Set5 v1.001 (Japan)"
        size: 2097152
        crc32: "5702d38f"
        sha1: "ea7a3ae1de73683008dd795c252941a4fc81b42e"
      - name: "set5v0.976.ic507"
        description: "Katana Set5 v0.976 (Japan)"
        size: 2097152
        crc32: "dcb2e86f"
        sha1: "c88b4b6704811e3a428ee225727e4f7df467a3b5"
      - name: "set5v0.972.ic507"
        description: "Katana Set5 v0.972 (Japan)"
        size: 2097152
        crc32: "1a2f2a91"
        sha1: "08df891f02cf959189bc9b7c4ac1a4e6a4475b50"
      - name: "set5v0.71.bin"
        description: "Katana Set5 Checker v0.71"
        size: 2097152
        crc32: "52d01969"
        sha1: "28aec4a01419d2d2a664c540bef30ea289ca0644"
      - name: "set5v0.41.bin"
        description: "Katana Set5 Checker v0.41"
        size: 2097152
        crc32: "485877bd"
        sha1: "dc1af1f1248ffa87d57bc5ef2ea41aac95ecfc5e"
  - name: naomi.zip
    system: sega-naomi
    required: true
    category: bios_zip
    note: "NAOMI BIOS set. The naomiBios row, or with naomiBiosAuto the row the game names, is loaded and a failed load stops the start. The House of the Dead 2, F355 Challenge and Airline Pilots BIOS rows are members of this set, not separate archives."
    source_ref: "demul.exe 0x6b46b8-0x6b4b6b and 0x6b4d2c-0x6b4d47 (naomi rows), 0x53c42d-0x53c46c (naomiBios row and auto choice), 0x53ca4d-0x53ca7e (load, fatal), 0x53ec90 (game BIOS id)"
    contents:
      - name: "epr-21576h.ic27"
        description: "Naomi epr-21576h (Japan)"
        size: 2097152
        crc32: "d4895685"
        sha1: "91424d481ff99a8d3f4c45cea6d3f0eada049a6d"
      - name: "epr-21576g.ic27"
        description: "Naomi epr-21576g (Japan)"
        size: 2097152
        crc32: "d2a1c6bf"
        sha1: "6d27d71aec4dfba98f66316ae74a1426d567698a"
      - name: "epr-21576e.ic27"
        description: "Naomi epr-21576e (Japan)"
        size: 2097152
        crc32: "08c0add7"
        sha1: "e7c1a7673cb2ccb21748ef44105e46d1bad7266d"
      - name: "epr-21576d.ic27"
        description: "Naomi epr-21576d (Japan)"
        size: 2097152
        crc32: "3b2afa7b"
        sha1: "d007e1d321c198a38c5baff86eb2ab84385d150a"
      - name: "epr-21576c.ic27"
        description: "Naomi epr-21576c (Japan)"
        size: 2097152
        crc32: "4599ad13"
        sha1: "7e730e9452a792d76f210c33a955d385538682c7"
      - name: "epr-21576b.ic27"
        description: "Naomi epr-21576b (Japan)"
        size: 2097152
        crc32: "755a6e07"
        sha1: "7e8b8ccfc063144d89668e7224dcd8a36c54f3b3"
      - name: "epr-21576a.ic27"
        description: "Naomi epr-21576a (Japan)"
        size: 2097152
        crc32: "cedfe439"
        sha1: "f27798bf3d890863ef0c1d9dcb4e7782249dca27"
      - name: "epr-21576.ic27"
        description: "Naomi epr-21576 (Japan)"
        size: 2097152
        crc32: "9dad3495"
        sha1: "5fb66f9a2b68d120f059c72758e65d34f461044a"
      - name: "epr-21577h.ic27"
        description: "Naomi epr-21577h (USA)"
        size: 2097152
        crc32: "fdf17452"
        sha1: "5f3e4b677f0046ce690a4f096b0481e5dd8bb6e6"
      - name: "epr-21577g.ic27"
        description: "Naomi epr-21577g (USA)"
        size: 2097152
        crc32: "25f64af7"
        sha1: "99f9e6cc0642319bd2da492611220540add573e8"
      - name: "epr-21577e.ic27"
        description: "Naomi epr-21577e (USA)"
        size: 2097152
        crc32: "cf36e97b"
        sha1: "b085305982e7572e58b03a9d35f17ae319c3bbc6"
      - name: "epr-21577d.ic27"
        description: "Naomi epr-21577d (USA)"
        size: 2097152
        crc32: "60ddcbbe"
        sha1: "58b15096d269d6df617ca1810b66b47deb184958"
      - name: "epr-21577a.ic27"
        description: "Naomi epr-21577a (USA)"
        size: 2097152
        crc32: "969dc491"
        sha1: "581d1eae328b87b67508a7586ffc60cee256f70f"
      - name: "epr-21578h.ic27"
        description: "Naomi epr-21578h (Export)"
        size: 2097152
        crc32: "7b452946"
        sha1: "8e9f153bbada24b37066dc45b64a7bf0d4f26a9b"
      - name: "epr-21578g.ic27"
        description: "Naomi epr-21578g (Export)"
        size: 2097152
        crc32: "55413214"
        sha1: "bd2748365a9fc1821c9369aa7155d7c41c4df43e"
      - name: "epr-21578f.ic27"
        description: "Naomi epr-21578f (Export)"
        size: 2097152
        crc32: "628a27fd"
        sha1: "dae7add616b1a2478f00608823e88c3b82a0e78f"
      - name: "epr-21578e.ic27"
        description: "Naomi epr-21578e (Export)"
        size: 2097152
        crc32: "087f09a3"
        sha1: "0418eb2cf9766f0b1b874a4e92528779e22c0a4a"
      - name: "epr-21578d.ic27"
        description: "Naomi epr-21578d (Export)"
        size: 2097152
        crc32: "dfd5f42a"
        sha1: "614a0db4743a5e5a206190d6786ade24325afbfd"
      - name: "epr-21578a.ic27"
        description: "Naomi epr-21578a (Export)"
        size: 2097152
        crc32: "6c9aad83"
        sha1: "555918de76d8dbee2a97d8a95297ef694b3e803f"
      - name: "epr-21579d.ic27"
        description: "Naomi epr-21579d (Korea)"
        size: 2097152
        crc32: "33513691"
        sha1: "b1d8c7c516e1471a788fcf7a02a794ad2f05aeeb"
      - name: "epr-21579.ic27"
        description: "Naomi epr-21579 (Korea)"
        size: 2097152
        crc32: "71f9c918"
        sha1: "d15af8b947f41eea7c203b565cd403e3f37a2017"
      - name: "epr-21580a.ic27"
        description: "Naomi epr-21580a (Australia)"
        size: 2097152
        crc32: "46dbe90f"
        sha1: "822b2ea8e254ea3ce66f0ea67e80a8c7e1125ec9"
      - name: "epr-21331.ic27"
        description: "Naomi House of the Dead 2 (Export)"
        size: 2097152
        crc32: "065f8500"
        sha1: "49a3881e8d76f952ef5e887200d77b4a415d47fe"
      - name: "epr-21330.ic27"
        description: "Naomi House of the Dead 2 (USA)"
        size: 2097152
        crc32: "9e3bfa1b"
        sha1: "b539d38c767b0551b8e7956c1ff795de8bbe2fbc"
      - name: "epr-21329.ic27"
        description: "Naomi House of the Dead 2 (Japan)"
        size: 2097152
        crc32: "d99e5b9b"
        sha1: "453ffb41b6197cac6d12e7814bb1d7281ccf1659"
      - name: "epr-21332.ic27"
        description: "Naomi House of the Dead 2 (Korea)"
        size: 2097152
        crc32: "bd6ce0ec"
        sha1: "3d1ce5cb6978afe57967d8b53bc969259dd64749"
      - name: "hotd2proto.ic27"
        description: "Naomi House of the Dead 2 (Prototype)"
        size: 2097152
        crc32: "ea74e967"
        sha1: "e4d037480eb6555d335a8ab9cd6c56122335586d"
      - name: "epr-22851.ic27"
        description: "Naomi F355 epr-22851 (Export)"
        size: 2097152
        crc32: "62483677"
        sha1: "3e3bcacf5f972c376b569f45307ee7fd0b5031b7"
      - name: "epr-22850.ic27"
        description: "Naomi F355 epr-22850 (USA)"
        size: 2097152
        crc32: "28aa539d"
        sha1: "14485368656af80504b212da620179c49f84c1a2"
      - name: "epr-22849.ic27"
        description: "Naomi F355 epr-22849 (Japan)"
        size: 2097152
        crc32: "121e009c"
        sha1: "3beb91f660e60590491b209b6be8584b05a90548"
      - name: "epr-21864.ic27"
        description: "Naomi F355 epr-21864 (Export)"
        size: 2097152
        crc32: "12ed7c66"
        sha1: "046be66e92eae766f3e05594aa837fc8888534ed"
      - name: "epr-21863.ic27"
        description: "Naomi F355 epr-21863 (USA)"
        size: 2097152
        crc32: "0615a4d1"
        sha1: "2c6986580b84278af75f396229fdd587bebc1768"
      - name: "epr-21862.ic27"
        description: "Naomi F355 epr-21862 (Japan)"
        size: 2097152
        crc32: "1f630716"
        sha1: "8d157809770467c3e7618c6299f3b96b5f10518c"
      - name: "epr-21864p.ic27"
        description: "Naomi F355 epr-21864 (Export, Proto)"
        size: 2097152
        crc32: "05128861"
        sha1: "5bdb320d84015b8429527a8eb4524958031862aa"
      - name: "epr-21862p.ic27"
        description: "Naomi F355 epr-21862 (Japan, Proto)"
        size: 2097152
        crc32: "f0cd4aaa"
        sha1: "9a9157992bf7a104c096efcdb8b02ceece186cbb"
      - name: "epr-21802.ic27"
        description: "Naomi Airline Pilots Deluxe (Export)"
        size: 2097152
        crc32: "a77c6b1c"
        sha1: "bd50a6bb8fa9bac121b076e21ea048a83a240a48"
      - name: "epr-21801.ic27"
        description: "Naomi Airline Pilots Deluxe (USA)"
        size: 2097152
        crc32: "a21bef24"
        sha1: "c6c6ed09772b63a9a84ef0678fc1b7527484038a"
      - name: "boot_rom_64b8.ic606"
        description: "Naomi Set4 Dev BIOS"
        size: 524288
        crc32: "7a50fab9"
        sha1: "ef79f448e0bf735d1264ad4f051d24178822110f"
      - name: "develop110.ic27"
        description: "Naomi Dev BIOS v1.10"
        size: 2097152
        crc32: "de7cfdb0"
        sha1: "da16800edc4d49f70481c124d487f544c2fa8ce7"
      - name: "epr-21336a.ic27"
        description: "Naomi Dev BIOS v1.2"
        size: 2097152
        crc32: "d3d57af8"
        sha1: "0eb72c2a20ad8b86d442b77760eab5e89521d469"
      - name: "develop.ic27"
        description: "Naomi Dev BIOS"
        size: 2097152
        crc32: "309a196a"
        sha1: "409b50371feb648f10efd6b7ac420bf08d9a3b5a"
      - name: "zukinver0930.ic25"
        description: "Naomi Zukin Dev BIOS"
        size: 2097152
        crc32: "58e17c23"
        sha1: "19330f906accf1b859f56bbcedc2edff73747599"
      - name: "naomi_boot_2491.ic27"
        description: "Naomi Dev Boot 2491"
        size: 2097152
        crc32: "5b28f868"
        sha1: "d101f58c69d9835e87a969688e43dc9b699b89d0"
      - name: "epr-21576h_multi.ic27"
        description: "Naomi epr-21576h Multi (hack)"
        size: 2097152
        crc32: "cce01f1f"
        sha1: "cca17119ad13e3a4ef7cb6902a37b65d6a844aee"
  - name: naomi2.zip
    system: sega-naomi2
    required: true
    category: bios_zip
    note: "NAOMI 2 BIOS set. Its rows sit in the same table as NAOMI and are chosen the same way. The row's set field makes the loader open naomi2.zip."
    source_ref: "demul.exe 0x6b4b6c-0x6b4cd7 and 0x6b4d48-0x6b4d63 (naomi2 rows), 0x53c42d-0x53c46c (row), 0x53ca4d-0x53ca7e (load, fatal)"
    contents:
      - name: "epr-23605c.ic27"
        description: "Naomi 2 epr-23605c (Japan)"
        size: 2097152
        crc32: "297ea6ed"
        sha1: "cfbfe57c80e6ee86a101fa83aec0a01e00c0f42a"
      - name: "epr-23605b.ic27"
        description: "Naomi 2 epr-23605b (Japan)"
        size: 2097152
        crc32: "3a3242d4"
        sha1: "aaca4df51ef91d926f8191d372f3dfe1d20d9484"
      - name: "epr-23605a.ic27"
        description: "Naomi 2 epr-23605a (Japan)"
        size: 2097152
        crc32: "7bc3fc2d"
        sha1: "a4a9531a7c66ff30046908cf71f6c7b6fb59c392"
      - name: "epr-23605.ic27"
        description: "Naomi 2 epr-23605 (Japan)"
        size: 2097152
        crc32: "5731e446"
        sha1: "787b0844fc408cf124c12405c095c59948709ea6"
      - name: "epr-23607c.ic27"
        description: "Naomi 2 epr-23607c (USA)"
        size: 2097152
        crc32: "750e254b"
        sha1: "81d0b1a076c274c6bd7c53b65e7b80e14fe039e1"
      - name: "epr-23607b.ic27"
        description: "Naomi 2 epr-23607b (USA)"
        size: 2097152
        crc32: "f308c5e9"
        sha1: "5470ab1cee6afecbd8ca8cf40f8fbe4ec2cb1471"
      - name: "epr-23607.ic27"
        description: "Naomi 2 epr-23607 (USA)"
        size: 2097152
        crc32: "2b55add2"
        sha1: "547de5f97d3183c8cd069c4fa3c09f13d8b637d9"
      - name: "epr-23608c.ic27"
        description: "Naomi 2 epr-23608c (Export)"
        size: 2097152
        crc32: "6ef1dd8e"
        sha1: "25ef957ec1c58fdaff5e89102002bca6c38832c5"
      - name: "epr-23608b.ic27"
        description: "Naomi 2 epr-23608b (Export)"
        size: 2097152
        crc32: "a554b1e3"
        sha1: "343b727a3619d1c75a9b6d4cc156a9050447f155"
      - name: "epr-23608a.ic27"
        description: "Naomi 2 epr-23608a (Export)"
        size: 2097152
        crc32: "e8f884d1"
        sha1: "28f4de747bb3cf860b9ebf897322fbc5d7c1e156"
      - name: "epr-23608.ic27"
        description: "Naomi 2 epr-23608 (Export)"
        size: 2097152
        crc32: "929cc3a6"
        sha1: "47d00c818de23f733a4a33b1bbc72eb8aa729246"
      - name: "epr-23609b.ic27"
        description: "Naomi 2 epr-23609b (Korea)"
        size: 2097152
        crc32: "99e3751f"
        sha1: "8a244f75595c49d2a37a42ab96b6bab35163ca0e"
      - name: "epr-23610b.ic27"
        description: "Naomi 2 epr-23610b (Australia)"
        size: 2097152
        crc32: "de8e1267"
        sha1: "0b3a36446c308fcbfe3647df45c848091e8797f1"
      - name: "epr-23605c_multi.ic27"
        description: "Naomi 2 epr-23605c Multi (hack)"
        size: 2097152
        crc32: "353fdbcd"
        sha1: "a8b7dce572b74e02e65cb949b2c366c87625157f"
  - name: segasp.zip
    system: sega-system-sp
    required: true
    category: bios_zip
    note: "System SP BIOS set, chosen like NAOMI. Games whose family is spider also get their .eeprom and .sram images from the nvram directory."
    source_ref: "demul.exe 0x6b4cd8-0x6b4d2b (segasp rows), 0x53c42d-0x53c46c (row), 0x53ca4d-0x53ca7e (load, fatal)"
    contents:
      - name: "epr-24328a.ic50"
        description: "System SP epr-24328a"
        size: 2097152
        crc32: "03ec3805"
        sha1: "a8fbaea826ca257be0b2b86952f247254929e046"
      - name: "epr-24328.ic50"
        description: "System SP epr-24328"
        size: 2097152
        crc32: "25f2ef00"
        sha1: "e58dec9f171e52b3ded213b3fcd9a0de8a438076"
      - name: "epr-24236a.ic50"
        description: "System SP epr-24236a"
        size: 2097152
        crc32: "ca7df0de"
        sha1: "504c74d5fc96c53ef9f7753e9e37fb8b39cb628c"
  - name: awbios.zip
    system: sammy-atomiswave
    required: true
    category: bios_zip
    note: "Atomiswave BIOS set, row from atomiswaveBios. A row larger than the 128 KB BIOS area (fpr-24363.ic48, 512 KB) is read whole and its last 128 KB are copied. A failed load stops the start."
    source_ref: "demul.exe 0x6b4648-0x6b469b (awbios table), 0x53c709-0x53c76d (row, oversized read, fatal), 0x53ca4d-0x53ca7e (load)"
    contents:
      - name: "bios0.ic23"
        description: "Sammy BIOS (1)"
        size: 131072
        crc32: "719b2b0b"
        sha1: "b4c1a26bc8906d5275eb28c701dff2b9365bcdfa"
      - name: "bios1.ic23"
        description: "Sammy BIOS (2)"
        size: 131072
        crc32: "d3e80a9f"
        sha1: "33024f9d51c04884c2b44ce146f340e7a857b959"
      - name: "fpr-24363.ic48"
        description: "Sega BIOS"
        size: 524288
        crc32: "82a105f0"
        sha1: "5128fe2ddcced77332bdcab691c09958051fa564"
  - name: hikaru.zip
    system: sega-hikaru
    required: true
    category: bios_zip
    note: "Hikaru BIOS set, row from hikaruBios or, with hikaruBiosAuto, the game's. A failed load stops the start."
    source_ref: "demul.exe 0x6b44a0-0x6b450f (hikaru table), 0x53c82f-0x53c86c (row and auto choice), 0x53ca4d-0x53ca7e (load, fatal)"
    contents:
      - name: "prot_bot.ic94"
        description: "Hikaru v0.74 Dev BIOS"
        size: 2097152
        crc32: "7cbf2fb6"
        sha1: "7384e3c9314add7d61f93c9edd9fb7788d08f423"
      - name: "epr-21904.ic94"
        description: "Hikaru v0.84 epr-21904"
        size: 2097152
        crc32: "d96298b6"
        sha1: "d10d837bc7d68eb7125c34beffe21a91305627b0"
      - name: "epr-23400.ic94"
        description: "Hikaru v0.92 epr-23400"
        size: 2097152
        crc32: "3d557104"
        sha1: "d39879f5a1acbd54ad8ee4fbd412f870c9ff4aa5"
      - name: "epr-23400a.ic94"
        description: "Hikaru v0.96 epr-23400a"
        size: 2097152
        crc32: "2aa906a7"
        sha1: "098c9909b123ed6c338ac874f2ee90e3b2da4c02"
  - name: mie.zip
    system: sega-hikaru
    required: true
    category: bios_zip
    note: "315-6146 MIE MCU firmware. Hikaru loads it before the BIOS and stops when it fails. NAOMI loads it into each MIE device and for the RFID reader (naomiLLEMIE) without checking the result, so NAOMI games start without it."
    source_ref: "demul.exe 0x6b4468-0x6b4483 (mie table), 0x53c8dd-0x53c94e (Hikaru, fatal), 0x53c680-0x53c6c8 (NAOMI, result ignored), 0x540560-0x540750 (RFID, result ignored)"
    contents:
      - name: "315-6146.bin"
        description: "315-6146 MCU Firmware"
        size: 2048
        crc32: "9b197e35"
        sha1: "864d14d58732dd4e2ee538ccc71fa8df7013ba06"
  - name: segadimm.zip
    system: sega-naomi
    required: false
    category: bios_zip
    note: "Net DIMM firmware set, read only when Demul.ini [dimm] enabled is set or a GD-ROM game has an empty disc entry, with the [dimm] bios row or then the last row (401_203.bin). GD-ROM games boot without it by default."
    source_ref: "demul.exe 0x6b4530-0x6b462b (segadimm table), 0x53d23e-0x53d3b4 (DIMM path, fatal once taken), 0x535877-0x5358a3 ([dimm] keys)"
    contents:
      - name: "fpr-23489c.ic14"
        description: "Sega DIMM 1.02"
        size: 2097152
        crc32: "bc38bea1"
        sha1: "b36fcc6902f397d9749e9d02de1bbb7a5e29d468"
      - name: "203_203.bin"
        description: "VxWorks 2.03"
        size: 2097152
        crc32: "a738ea1c"
        sha1: "6f55f1ae0606816a4eca6645ed36eb7f9c7ad9cf"
      - name: "fpr23718.ic36"
        description: "VxWorks 2.06"
        size: 2097152
        crc32: "a738ea1c"
        sha1: "b7b5a55a6a4cf0aa2df1b3dff62ff67f864c55e8"
      - name: "213_203.bin"
        description: "VxWorks 2.13"
        size: 2097152
        crc32: "a738ea1c"
        sha1: "17131f318632610b87bc095156ffad4597fed4ca"
      - name: "217_203.bin"
        description: "VxWorks 2.17"
        size: 2097152
        crc32: "a738ea1c"
        sha1: "e5a229ae7ed48b2955cad63529fd938c6db555e5"
      - name: "fpr23905c.ic36"
        description: "VxWorks 3.01"
        size: 2097152
        crc32: "ffffffff"
        sha1: "972b3b73aa1eabb1091e9096b57a7e5e1d0436d8"
      - name: "fpr23905.ic36"
        description: "VxWorks 3.03"
        size: 2097152
        crc32: "ffffffff"
        sha1: "acade4362807c7571b1c2a48ed6067e4bddd404b"
      - name: "317_312.bin"
        description: "VxWorks 3.17"
        size: 2097152
        crc32: "a738ea1c"
        sha1: "31d698cd659446ee09a2eeedec6e4bc6a19d05e8"
      - name: "401_203.bin"
        description: "VxWorks 4.01"
        size: 2097152
        crc32: "a738ea1c"
        sha1: "edb52597108462bcea8eb2a47c19e51e5fb60638"