mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-11-01 07:33:45 -06:00
Abdessamad Derraz
e7aa9e870b
Each libretro profile records version_basis and core_version is read there at its pin. snes9x states 1.63 in snes9x.h, nestopia 2.0.0, mgba 0.11.0, vice 3.10, atari800's libretro tree 7.0.0. Cores whose build takes its version from git carry the nearest tag in describe form (flycast v2.7-90-ge88b0ce, ppsspp, duckstation, gearcoleco), placeholders copied from .info files (Git, SVN) are replaced by the code's statement, and a code that states none is null with kind none.
50 lines
1.9 KiB
YAML
50 lines
1.9 KiB
YAML
emulator: a5200
|
|
type: libretro
|
|
core_classification: community_fork
|
|
source: "https://github.com/libretro/a5200"
|
|
upstream: "https://github.com/alekmaul/a5200"
|
|
profiled_date: "2026-03-22"
|
|
source_commit: "40c6f2f1ad4a3145b328d5baaf010fae6c7e752b"
|
|
core_version: "2.0.2"
|
|
version_basis:
|
|
kind: file
|
|
path: "libretro/libretro.c"
|
|
pattern: 'info->library_version\s*=\s*"([^"\s]+)'
|
|
display_name: "Atari - 5200 (a5200)"
|
|
cores:
|
|
- a5200
|
|
systems:
|
|
- atari-5200
|
|
|
|
# Dedicated Atari 5200 emulator forked from Atari800 2.0.2 codebase by Alekmaul
|
|
# for GCW Zero. Libretro port later enhanced by wavemotion-dave with Altirra OS
|
|
# fallback, Super Cart support, frame blending and analog input.
|
|
#
|
|
# Loads 5200 OS ROM from <system_dir>/5200.rom (2048 bytes, mapped to 0xF800-0xFFFF
|
|
# via MEMORY_InitialiseMachine). If missing or user selects "internal" via core
|
|
# option "a5200_bios", falls back to built-in Altirra 5200 OS (altirra_5200_os.c,
|
|
# compiled from Altirra-3.20-test4).
|
|
#
|
|
# BIOS loading (libretro.c:408-499):
|
|
# 1. check_bios_variable() reads core option "a5200_bios" (official/internal)
|
|
# 2. load_bios() reads <system_dir>/5200.rom, validates size == 0x800
|
|
# 3. On failure or "internal" selected: memcpy from ROM_altirra_5200_os
|
|
#
|
|
# Upstream divergence: alekmaul's standalone requires 5200.rom (exits on missing).
|
|
# Libretro port makes it optional via Altirra fallback.
|
|
#
|
|
# Cart type detection via MD5 database in cartridge.c (standard 4K-512K, bounty bob,
|
|
# super cart, EE banked). Unknown ROMs detected by size heuristic.
|
|
|
|
files:
|
|
- name: "5200.rom"
|
|
path: "5200.rom"
|
|
min_size: 2048
|
|
required: false
|
|
hle_fallback: true
|
|
validation: [size]
|
|
note: >
|
|
Atari 5200 OS ROM. Core option "a5200_bios" controls official vs internal.
|
|
Altirra replacement has lower compatibility with some titles.
|
|
source_ref: "source libretro/libretro.c:58-59, source libretro/libretro.c:416-507, source libretro/libretro.c:456-468, source emu/memory.c:46"
|