mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-04-13 12:22:33 -05:00
d929424988
- Added profiled_date field to all 204 existing profiles for update tracking - Created 56 alias profiles for cores that share BIOS with a parent (e.g., mednafen_psx -> beetle_psx, fbalpha2012 -> fbneo) 260 total profiles covering all 294 libretro cores (204 unique + 56 alias).
49 lines
2.1 KiB
YAML
49 lines
2.1 KiB
YAML
emulator: a5200
|
|
type: libretro
|
|
source: "https://github.com/libretro/a5200"
|
|
profiled_date: "2026-03-18"
|
|
cores:
|
|
- a5200
|
|
systems:
|
|
- atari-5200
|
|
|
|
# a5200 is a dedicated Atari 5200 emulator forked from Atari800/Atari++ codebase.
|
|
# It loads the official 5200 OS ROM from <system_dir>/5200.rom (2048 bytes, mapped
|
|
# to memory at 0xF800-0xFFFF via MEMORY_InitialiseMachine).
|
|
#
|
|
# If 5200.rom is missing or the user selects "internal" via core option "a5200_bios",
|
|
# the core falls back to Altirra 5200 OS, an open-source replacement compiled from
|
|
# Altirra-3.20-test4 (altirra_5200_os.c). The fallback has reduced compatibility
|
|
# compared to the original Atari OS ROM.
|
|
#
|
|
# BIOS loading (libretro.c:409-500):
|
|
# 1. check_bios_variable() reads core option "a5200_bios" (official/internal)
|
|
# 2. load_bios() attempts to read <system_dir>/5200.rom (0x800 bytes)
|
|
# 3. On failure or "internal" selected: memcpy from ROM_altirra_5200_os fallback
|
|
#
|
|
# Cartridge detection (atari.c:169-236):
|
|
# Auto-detects cart type from header bytes and size. ROM database in cartridge.c
|
|
# maps MD5 hashes to cart types (standard 8K/16K/32K/40K, bounty bob, super cart).
|
|
|
|
files:
|
|
- name: "5200.rom"
|
|
path: "5200.rom"
|
|
size: 2048
|
|
required: false
|
|
note: >
|
|
Atari 5200 OS ROM. Provides the built-in OS routines used by all 5200
|
|
cartridges. Without it, the core uses the Altirra open-source replacement
|
|
which has lower compatibility with some games. Core option "a5200_bios"
|
|
controls whether to use this file or the internal fallback.
|
|
source_ref: "libretro/libretro.c:58-59, libretro/libretro.c:409-500, emu/memory.c:46"
|
|
|
|
notes:
|
|
altirra_fallback: >
|
|
The built-in Altirra 5200 OS (from altirra_5200_os.c, 0x800 bytes) is a free
|
|
replacement that works for most games but some titles require the original ROM
|
|
for full compatibility. The core displays a notification when falling back.
|
|
cart_db: >
|
|
cartridge.c contains an MD5-based ROM database for automatic cart type detection
|
|
(standard, EE banked, bounty bob, super cart variants). Unknown ROMs are detected
|
|
by size heuristic.
|