emulator: "FB Alpha 2012 Neo Geo"
type: libretro
core_classification: frozen_snapshot
source: "https://github.com/libretro/fbalpha2012_neogeo"
upstream: "https://www.fbalpha.com"
profiled_date: "2026-03-23"
source_commit: "e092097037d494c50d17c5144a2758d68538061b"
core_version: "v0.2.97.29"
display_name: "Arcade (FB Alpha 2012 Neo Geo)"
cores:
  - fbalpha2012_neogeo
systems:
  - neogeo

notes: |
  Frozen snapshot of Final Burn Alpha v0.2.97.29 (circa 2012), Neo Geo only.
  Exists for RAM-constrained platforms. Most users should use FBNeo.

  Neo Geo requires a BIOS ROM set (neogeo.zip) placed alongside game ROMs.
  The BIOS set contains ~35 variants (src/burn/drv/neogeo/d_neogeo.cpp:903-981), all BRF_BIOS:

  68K main BIOS (BRF_SELECT, one active at a time):
    asia-s3.rom       0x91b64be3  MVS Asia/Europe ver. 6 (default)
    sp-s2.sp1         0x9036d879  MVS Asia/Europe ver. 5
    sp-s.sp1          0xc7f2fa45  MVS Asia/Europe ver. 3 (4 slot)
    sp-u2.sp1         0xe72943de  MVS USA ver. 5 (2 slot)
    sp-e.sp1          0x2723a5b5  MVS USA ver. 5 (6 slot)
    vs-bios.rom       0xf0e8f27d  MVS Japan ver. 6
    sp-j2.sp1         0xacede59c  MVS Japan ver. 5
    sp1.jipan.1024    0x9fb0abe4  MVS Japan ver. 3 (4 slot)
    sp-45.sp1         0x03cc9f6a  NEO-MVH MV1C (512 KB)
    japan-j3.bin      0xdff6d41f  MVS Japan (J3)
    neo-po.bin        0x16d0c132  AES Japan
    neo-epo.bin       0xd27a71f1  AES Asia
    neodebug.bin      0x698ebb7d  Development Kit
    sp-1v1_3db8c.bin  0x162f0ebe  Deck ver. 6 (Git Ver 1.3)
    uni-bios_4_0.rom  0xa7aab458  Universe BIOS 4.0
    (+ 14 more Universe BIOS variants, versions 1.0-3.3)
    neopen.sp1        0xcb915e76  NeoOpen BIOS v0.1 beta

  System ROMs (always required):
    sm1.sm1           0x94416d67  Z80 BIOS (sound program)
    sfix.sfix         0xc2ea0cfd  Text layer tiles (fix layer)
    000-lo.lo         0x5a86cff2  Zoom table

  Special sets:
    236-bios.sp1      0x853e6b96  Trackball BIOS
    sp-4x.sp1         0xb4590283  PCB BIOS
    spj.sp1           0x148dd727  PCB BIOS (Japan)
    neocd.bin          0xdf9de490  Neo Geo CD BIOS

  neogeo.zip is a parent ROM set, loaded from g_rom_dir alongside game ZIPs.
  g_system_dir is set (src/burner/libretro/libretro.cpp:3016) but never used for file loading.

  neogeo.zip is read from the same directory as the game ROM ZIPs, as the .info
  note "BIOS files must be inside the ROM directory" states.

files: []

exclusion_note: "Neo Geo BIOS is a parent ROM set (neogeo.zip) placed in the ROM directory alongside game ZIPs. Not a system directory file, it follows the arcade ROM set convention."