mirror of
https://github.com/Abdess/retroarch_system.git
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134 lines
4.6 KiB
YAML
134 lines
4.6 KiB
YAML
emulator: Beetle PSX (Mednafen PSX)
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type: libretro
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core_classification: community_fork
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source: "https://github.com/libretro/beetle-psx-libretro"
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upstream: "https://mednafen.github.io/"
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profiled_date: "2026-03-29"
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source_commit: "1093a5d0c22775b08bef18087735c911e6f5eebd"
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core_version: "v0.9.44.1"
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display_name: "Sony - PlayStation (Beetle PSX)"
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cores: [beetle_psx, mednafen_psx, mednafen_psx_hw]
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systems: [sony-playstation]
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notes: >
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Region-based BIOS selection: the core picks JP/NA/EU firmware based on disc region.
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SHA1 validated with warning on mismatch (does not block loading).
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SHA1 and alternate filenames sourced from MAME psx.cpp (libretro.cpp:186).
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Override option allows using PSP, PS3, or OpenBIOS as region-free alternative.
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Embedded OpenBIOS (512KB) compiled into the binary serves as HLE fallback when no BIOS found.
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"Skip BIOS" option patches BIOS ROM but causes compatibility issues.
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Upstream Mednafen loads the same 3 region BIOS; override BIOS and HLE fallback are libretro additions.
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Two BIOS geometries are accepted: the stock 512 KB kernel and the 1 MB SCPH-5903 part,
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selected by file size at load time (libretro.c:2974-2988). A 1 MB image switches Video CD
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from HLE to daughterboard emulation (libretro.c:5838). Reached through the BIOS path
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override only: the region name lists carry no SCPH-5903 entry, and the firmware scan
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compares against the region SHA1, so a 1 MB file never matches there (libretro.c:324-332).
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Mednafen rejects a BIOS that is not 524288 bytes (psx.cpp:1777), so this geometry is
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libretro only.
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files:
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# -- Region: Japan (REGION_JP) --
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- name: "scph5500.bin"
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description: "SCPH-5500 (v3.0 09-09-96 J)"
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region: "NTSC-J"
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required: true
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hle_fallback: true
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size: 524288
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sha1: "b05def971d8ec59f346f2d9ac21fb742e3eb6917"
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md5: "8dd7d5296a650fac7319bce665a6a53c"
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validation: [sha1]
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mode: both
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source_ref: "libretro.c:433-441"
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aliases: ["SCPH5500.bin", "SCPH-5500.bin"]
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- name: "scph5903.bin"
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description: "SCPH-5903 (System ROM Version 2.2 12/04/95 J), Video CD daughterboard"
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region: "NTSC-J"
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required: false
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size: 1048576
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sha1: "15c94da3cc5a38a582429575af4198c487fe893c"
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md5: "81328b966e6dcf7ea1e32e55e1c104bb"
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validation: [size, sha1]
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mode: libretro
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source_ref: "libretro.c:443-450, 2974-2988, 3007-3009, 5838"
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# -- Region: North America (REGION_NA) --
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- name: "scph5501.bin"
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description: "SCPH-5501, 5503, 7003 (v3.0 11-18-96 A)"
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region: "NTSC-U"
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required: true
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hle_fallback: true
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size: 524288
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sha1: "0555c6fae8906f3f09baf5988f00e55f88e9f30b"
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md5: "490f666e1afb15b7362b406ed1cea246"
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validation: [sha1]
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mode: both
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source_ref: "libretro.c:452-470"
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aliases:
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- "SCPH5501.bin"
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- "SCPH-5501.bin"
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- "scph5503.bin"
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- "SCPH5503.bin"
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- "SCPH-5503.bin"
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- "scph7003.bin"
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- "SCPH7003.bin"
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- "SCPH-7003.bin"
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# -- Region: Europe (REGION_EU) --
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- name: "scph5502.bin"
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description: "SCPH-5502, 5552 (v3.0 01-06-97 E)"
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region: "PAL"
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required: true
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hle_fallback: true
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size: 524288
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sha1: "f6bc2d1f5eb6593de7d089c425ac681d6fffd3f0"
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md5: "32736f17079d0b2b7024407c39bd3050"
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validation: [sha1]
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mode: both
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source_ref: "libretro.c:472-486"
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aliases:
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- "SCPH5502.bin"
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- "SCPH-5502.bin"
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- "scph5552.bin"
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- "SCPH5552.bin"
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- "SCPH-5552.bin"
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# -- Override BIOS (region-free alternatives) --
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- name: "psxonpsp660.bin"
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description: "PSP embedded PS1 BIOS (region-free override)"
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region: "Auto"
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required: false
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size: 524288
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sha1: "96880d1ca92a016ff054be5159bb06fe03cb4e14"
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md5: "c53ca5908936d412331790f4426c6c33"
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validation: [sha1]
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mode: libretro
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source_ref: "libretro.c:362-368"
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aliases: ["PSXONPSP660.bin"]
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note: "override_bios=1. Falls back to region BIOS if not found."
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- name: "ps1_rom.bin"
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description: "PS3 embedded PS1 BIOS, first 512KB extracted (region-free override)"
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region: "Auto"
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required: false
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sha1: "c40146361eb8cf670b19fdc9759190257803cab7"
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md5: "81bbe60ba7a3d1cea1d48c14cbcc647b"
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validation: [sha1]
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mode: libretro
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source_ref: "libretro.c:370-376"
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aliases: ["PS1_ROM.bin"]
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note: "override_bios=2. Falls back to region BIOS if not found."
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- name: "openbios.bin"
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description: "OpenBIOS (open-source PS1 HLE BIOS, region-free override)"
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region: "Auto"
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required: false
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size: 524288
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mode: libretro
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source_ref: "libretro.c:378-384"
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aliases: ["OPENBIOS.bin"]
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note: "override_bios=3. No SHA1 validation. Falls back to region BIOS if not found. Also embedded in binary as HLE fallback (libretro.cpp:2157-2159)."
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