emulator: MAME4ALL-Pi
type: standalone
core_classification: frozen_snapshot
source: "https://github.com/RetroPie/mame4all-pi"
upstream: "https://sourceforge.net/projects/mame4allpi/"
profiled_date: "2026-10-20"
source_commit: "c6bfd2aef331b5a5e157c15d8bf8a77393c85689"
core_version: "0.37b5"
display_name: "Arcade (MAME4ALL-Pi)"
mode: standalone
cores:
  - mame4all
systems:
  - arcade
  - snk-neogeo-mvs

notes: |
  Raspberry Pi port by Squid of Franxis' MAME4ALL, itself MAME 0.37b5
  (readme.txt:5, src/version.cpp:1). RetroPie builds the tree with make,
  installs mame, mame.cfg.template, hiscore.dat, cheat.dat, clrmame.dat,
  folders/ and skins/ to its own directory, and launches mame with the
  game's base name. Its mame.cfg sets rompath to the mame-mame4all and
  arcade ROM directories and samplepath to their samples/ folders.

  main() moves to the directory holding the binary before anything is
  opened, so every relative path below is read from there. mame.cfg comes
  from that directory.
  ref: src/rpi/rpi.cpp:123-126, src/rpi/config.cpp:93

  ROMs and samples are looked up in each rompath or samplepath entry as a
  <game>/ folder, then <game>.zip. A clone also searches its parent's set,
  and every Neo Geo game names neogeo as parent so that the BIOS does not
  have to sit in each archive. rompath defaults to ".;roms", samplepath to
  ".;samples".
  ref: src/rpi/fileio.cpp:349-446, src/common.cpp:140-162, src/rpi/config.cpp:273-274,
       src/drivers/neogeo.cpp:4580-4586

  hiscore.dat is opened for every game, history.dat and mameinfo.dat when
  the game information screen is shown, cheat.dat only with cheat=yes. All
  four are opened by bare name from the binary's directory: the cheat
  branch builds a path from the cheat directory option and then opens the
  bare name instead.
  ref: src/rpi/fileio.cpp:950-971, src/cpuintrf.cpp:626-628,
       src/usrintrf.cpp:2546, src/mame.cpp:621-623

  Paths below are written under mame4all/, which stands for the binary's
  directory. clrmame.dat is installed beside them and never opened. The
  skins/ bitmaps and folders/Favorites.ini belong to the game list front
  end.
  ref: src/rpi/gp2x_frontend.cpp:85,107,131

files:
  - name: neogeo.zip
    system: snk-neogeo-mvs
    required: true
    category: bios_zip
    description: "Neo Geo BIOS set, parent of every Neo Geo game"
    note: >-
      Opened from rompath as the parent set. neo-geo.rom, ng-sm1.rom and
      ng-sfix.rom are declared in every Neo Geo game through the
      NEO_BIOS_SOUND and NEO_SFIX macros, so a game cannot load without
      them. The Irritating Maze carries its own im_bios.rom in its set.
    source_ref: "src/drivers/neogeo.cpp:1137-1173, src/drivers/neogeo.cpp:4501-4510, src/drivers/neogeo.cpp:4586"
    contents:
      - name: neo-geo.rom
        description: 68K BIOS
        size: 131072
        crc32: "9036d879"
      - name: ng-sm1.rom
        description: Z80 sound BIOS
        size: 131072
        crc32: "97cf998b"
      - name: ng-sfix.rom
        description: fix layer tiles
        size: 131072
        crc32: "354029fc"

  - name: hiscore.dat
    path: "mame4all/hiscore.dat"
    required: false
    category: game_data
    bundled: true
    size: 50821
    md5: "5567b18ff76cf4406c915d9d5deac2f4"
    sha1: "830660c510bb185c3278320b2ccbf5f536a1a649"
    crc32: "158abd35"
    description: "High score memory ranges, HISCORE.DAT version 7.0"
    note: >-
      Read with every game. Without it no score is saved. The values are
      those of the file the repository installs.
    source_ref: "src/hiscore.cpp:18, src/hiscore.cpp:253-255, src/cpuintrf.cpp:626-628, src/rpi/fileio.cpp:950-962"

  - name: cheat.dat
    path: "mame4all/cheat.dat"
    required: false
    category: game_data
    bundled: true
    size: 1522317
    md5: "c5b456237958c7a7c120a8ad710786a0"
    sha1: "c0f20911b6f929ecd8302863d9ced3e5ba9c6b97"
    crc32: "ae2b9dbb"
    description: "Pugsy's cheat database of 18 May 2000"
    note: >-
      Read only when the cheat option is on (cheat=no in the installed
      mame.cfg). The cheatfile option renames it. The values are those of
      the file the repository installs.
    source_ref: "src/cheat.cpp:210, src/cheat.cpp:616-618, src/rpi/config.cpp:379-382, src/rpi/fileio.cpp:965-971"

  - name: history.dat
    path: "mame4all/history.dat"
    required: false
    category: game_data
    description: "Game history database"
    note: "Read for the game information screen. Not installed."
    source_ref: "src/datafile.cpp:52, src/datafile.cpp:541, src/rpi/config.cpp:384"

  - name: mameinfo.dat
    path: "mame4all/mameinfo.dat"
    required: false
    category: game_data
    description: "Driver information database"
    note: "Read with history.dat for the game information screen. Not installed."
    source_ref: "src/datafile.cpp:53, src/datafile.cpp:568, src/rpi/config.cpp:386"