mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-04-13 12:22:33 -05:00
e13e8734b9
240 file-level entries used notes: instead of the canonical note: field. verify.py and cross_reference.py only read note:, so these were silently ignored.
87 lines
3.3 KiB
YAML
87 lines
3.3 KiB
YAML
emulator: Vircon32
|
|
type: libretro
|
|
core_classification: official_port
|
|
source: "https://github.com/vircon32/vircon32-libretro"
|
|
upstream: "https://github.com/vircon32/ComputerSoftware"
|
|
profiled_date: "2026-03-25"
|
|
core_version: "2026.2.18"
|
|
display_name: "Vircon32"
|
|
cores:
|
|
- vircon32
|
|
systems:
|
|
- vircon32
|
|
|
|
notes: |
|
|
Vircon32 is a libretro core for the Vircon32 fantasy console, a 32-bit
|
|
virtual game console with fixed hardware specs (60 fps, 640x360, 16
|
|
sound channels, up to 4 gamepads).
|
|
|
|
The Standard BIOS v1.2 is embedded directly into the core binary as a
|
|
C header (embedded/StandardBios.h), generated from Assets/StandardBios.v32
|
|
at build time. The core never strictly requires an external BIOS file.
|
|
|
|
BIOS loading logic (libretro.cpp:415-429):
|
|
1. Check if system_dir/Vircon32Bios.v32 exists on disk
|
|
2. If found, load it via Console.LoadBiosFile() (external override)
|
|
3. If not found, load the embedded BIOS via LoadEmbeddedBios()
|
|
|
|
This runs inside context_reset() (libretro.cpp:473-474), which is called
|
|
whenever the OpenGL context is (re)created.
|
|
|
|
The BIOS file format is a V32 ROM with a specific signature
|
|
(ROMFileFormat::BiosSignature). It must contain exactly 1 texture and
|
|
1 sound. The loader validates the signature, file structure, and version
|
|
compatibility before loading program ROM, video ROM and audio ROM
|
|
(V32Console.cpp:259-431).
|
|
|
|
The external BIOS file allows users to replace the boot animation with
|
|
a custom one. Game compatibility is not affected by BIOS choice.
|
|
|
|
files:
|
|
- name: "Vircon32Bios.v32"
|
|
system: vircon32
|
|
description: "Vircon32 console BIOS (custom override)"
|
|
required: false
|
|
hle_fallback: true
|
|
size: 1073060
|
|
md5: "73f04397cbb2dafcf2047b19a856153a"
|
|
sha1: "67ddbcd018f03ed74b6e013074d92cc5f1f51c80"
|
|
source_ref: "libretro.cpp:422-425"
|
|
note: |
|
|
Optional external BIOS placed in the system directory root.
|
|
If present, overrides the embedded Standard BIOS v1.2.
|
|
The hashes above correspond to the Standard BIOS v1.2 bundled
|
|
in Assets/StandardBios.v32 of the source repo. Custom BIOSes
|
|
will have different hashes but must follow the V32 BIOS format.
|
|
|
|
platform_details:
|
|
embedded_bios:
|
|
version: "Standard BIOS v1.2"
|
|
source_ref: "libretro.cpp:28, Assets/StandardBios.v32"
|
|
file_size: 1073060
|
|
md5: "73f04397cbb2dafcf2047b19a856153a"
|
|
sha1: "67ddbcd018f03ed74b6e013074d92cc5f1f51c80"
|
|
note: |
|
|
The standard BIOS is compiled into the core binary as
|
|
embedded_StandardBios[] via a generated header file. It provides
|
|
the boot animation (Vircon32 logo + startup sound). LoadEmbeddedBios()
|
|
writes the raw bytes into a stringstream and passes it to
|
|
Console.LoadBiosData().
|
|
|
|
bios_format:
|
|
source_ref: "VirconDefinitions/FileFormats.hpp, V32Console.cpp:259-431"
|
|
note: |
|
|
A V32 BIOS ROM file must have:
|
|
- BiosSignature in the header (distinct from CartridgeSignature)
|
|
- Exactly 1 texture (boot screen graphics)
|
|
- Exactly 1 sound (boot sound)
|
|
- Program ROM, Video ROM and Audio ROM in sequential layout
|
|
The loader validates all of this before accepting the file.
|
|
|
|
cartridge_format:
|
|
extensions: "v32"
|
|
source_ref: "V32Console.cpp:468-696"
|
|
note: |
|
|
Cartridges use CartridgeSignature with up to 256 textures and
|
|
1024 sounds. Program ROM can be up to 128M words (512 MB).
|