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# MAME 2003 - RetroBIOS

Type | libretro
Classification | frozen_snapshot
Source | https://github.com/libretro/mame2003-libretro
Upstream | https://www.mamedev.org
Version | 0.78
Profiled | 2026-03-24
Cores | mame2003
Systems | snk-neogeo-mvs, snk-neogeo-aes, igs-pgm, sega-stv, sega-megaplay, sega-megatech, deco-cassette, nintendo-playch10, nintendo-nss, super-kaneko-nova, konami-gx, century-cvs, zn1-capcom, zn2-capcom, zn1-taito, zn1-tecmo, zn1-video-system, zn1-acclaim

Technical notes

Frozen snapshot of MAME 0.78 (xmame, January 2003). Stock version without the Plus patches. Targets low-end hardware (Raspberry Pi, SBCs).

BIOS ZIPs are loaded from {content_dir}/ (same folder as the game ROM).

Data files (hiscore.dat, cheat.dat, history.dat, mameinfo.dat) are loaded from system_dir/mame2003/. Samples from system_dir/mame2003/samples/.

Neo Geo uses 7 official BIOS variants. Universe BIOS is commented out in the stock source (available in mame2003_plus).

ROM naming follows MAME 0.78 conventions.

21 files | 16 required, 5 optional | 19 in repo, 2 missing Categories: 4 game data, 17 BIOS ZIPs

`hiscore.dat` -optional, game_data

- Source: `src/hiscore.c:14,248`
- high score definitions, auto-generated if missing

`cheat.dat` -optional, game_data

- Source: `src/cheat.c:383,8249-8255`
- cheat definitions, requires cheats core option enabled

`history.dat` -optional, game_data

- Source: `src/datafile.c:327,608`
- game history and information database

`mameinfo.dat` -optional, game_data, missing from repo

- Source: `src/datafile.c:327,638`
- game technical information database

`neogeo.zip` -required, bios_zip

- System: snk-neogeo-mvs
- Source: `src/drivers/neogeo.c:1544-1556,5661-5675`
- Platforms: batocera, emudeck, lakka, recalbox, retroarch, retrobat, retrodeck, retropie
- MVS/AES BIOS, 7 official variants
- Contents (10 entries):
  - `sp-s2.sp1` -Europe MVS v2, default
  - `sp-s.sp1` -Europe MVS v1, 4 slot
  - `usa_2slt.bin` -US MVS v2, 2 slot
  - `sp-e.sp1` -US MVS v1, 6 slot
  - `asia-s3.rom` -Asia
  - `vs-bios.rom` -Japan VS v6
  - `sp-j2.rom` -Japan, older
  - `sm1.sm1` -Z80 sound BIOS, always required -128.0 KB
  - `sfix.sfx` -fix layer tiles -128.0 KB
  - `000-lo.lo` -Y zoom control -64.0 KB

`pgm.zip` -required, bios_zip

- System: igs-pgm
- Source: `src/drivers/pgm.c:946`
- Platforms: lakka, retroarch, retrodeck, retropie
- Contents (3 entries):
  - `pgm_p01s.rom` -68K BIOS -128.0 KB
  - `pgm_t01s.rom` -text tiles -2.0 MB
  - `pgm_m01s.rom` -samples -2.0 MB

`stvbios.zip` -required, bios_zip

- System: sega-stv
- Source: `src/drivers/stv.c:4597`
- Platforms: lakka, recalbox, retroarch, retrobat, retrodeck, retropie

`megaplay.zip` -required, bios_zip

- System: sega-megaplay
- Source: `src/drivers/segac2.c:4513`
- Platforms: retrodeck

`megatech.zip` -required, bios_zip

- System: sega-megatech
- Source: `src/drivers/segac2.c:4435`
- Platforms: retrodeck

`decocass.zip` -required, bios_zip

- System: deco-cassette
- Source: `src/drivers/decocass.c:1086`
- Platforms: lakka, retroarch, retrodeck, retropie

`playch10.zip` -required, bios_zip

- System: nintendo-playch10
- Source: `src/drivers/playch10.c:1680`
- Platforms: retrodeck

`nss.zip` -required, bios_zip

- System: nintendo-nss
- Source: `src/drivers/nss.c:406`
- Platforms: retrodeck

`skns.zip` -required, bios_zip

- System: super-kaneko-nova
- Source: `src/drivers/suprnova.c:1668`
- Platforms: lakka, retroarch, retrodeck, retropie

`konamigx.zip` -required, bios_zip

- System: konami-gx
- Source: `src/drivers/konamigx.c:3434`
- Platforms: retrodeck

`cvs.zip` -required, bios_zip

- System: century-cvs
- Source: `src/drivers/cvs.c:475-482,1350`
- Contents (3 entries):
  - `5b.bin` -sound CPU -2.0 KB
  - `82s185.10h` -PROM -2.0 KB
  - `82s123.10k` -PROM -32 B

`cpzn1.zip` -required, bios_zip

- System: zn1-capcom
- Source: `src/drivers/zn.c:1879`
- Capcom ZN-1 BIOS (PS1-based). Most games NOT_WORKING

`cpzn2.zip` -required, bios_zip

- System: zn2-capcom
- Source: `src/drivers/zn.c:1898`
- Capcom ZN-2 BIOS (PS1-based). Most games NOT_WORKING

`taitofx1.zip` -required, bios_zip

- System: zn1-taito
- Source: `src/drivers/zn.c:1955`
- Taito FX-1 BIOS (PS1-based). Most games NOT_WORKING

`tps.zip` -required, bios_zip

- System: zn1-tecmo
- Source: `src/drivers/zn.c:1936`
- Tecmo TPS BIOS (PS1-based). Most games NOT_WORKING

`sncwgltd.zip` -optional, bios_zip, missing from repo

- System: zn1-video-system
- Source: `src/drivers/zn.c:1948`
- Video System KN BIOS (PS1-based). NOT_WORKING

`acpsx.zip` -required, bios_zip

- System: zn1-acclaim
- Source: `src/drivers/zn.c:1925`
- Acclaim PSX BIOS (PS1-based). NOT_WORKING

Generated on 2026-03-25T14:56:43Z