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).
57 lines
1.9 KiB
YAML
57 lines
1.9 KiB
YAML
emulator: ProSystem
|
|
type: libretro
|
|
source: "https://github.com/libretro/prosystem-libretro"
|
|
profiled_date: "2026-03-18"
|
|
cores:
|
|
- prosystem
|
|
systems:
|
|
- atari-7800
|
|
|
|
notes: |
|
|
ProSystem is an Atari 7800 emulator ported to libretro.
|
|
|
|
BIOS loading is in core/libretro.c:579-588. Region is read from the
|
|
cartridge header byte 57 (core/Cartridge.c:214) or overridden by the
|
|
internal database (core/Database.c). PAL carts get the (E) BIOS,
|
|
everything else gets (U).
|
|
|
|
Both BIOS files are optional. The core runs games without them, but
|
|
some titles may have compatibility issues without the real BIOS
|
|
(startup encryption check, etc). bios_Store() maps the BIOS data
|
|
into the top of the 64K address space (65536 - bios_size).
|
|
|
|
No core option controls BIOS loading -- if the file exists in the
|
|
system directory, it is loaded automatically.
|
|
|
|
files:
|
|
- name: "7800 BIOS (U).rom"
|
|
system: atari-7800
|
|
required: false
|
|
size: 4096 # 4 KB
|
|
note: "NTSC/US Atari 7800 BIOS. Loaded when cartridge_region != REGION_PAL."
|
|
source_ref: "core/libretro.c:585"
|
|
|
|
- name: "7800 BIOS (E).rom"
|
|
system: atari-7800
|
|
required: false
|
|
size: 16384 # 16 KB (PAL BIOS is larger than NTSC)
|
|
note: "PAL/EU Atari 7800 BIOS. Loaded when cartridge_region == REGION_PAL."
|
|
source_ref: "core/libretro.c:583"
|
|
|
|
platform_details:
|
|
bios_mapping:
|
|
target: "top of 64K memory (65536 - bios_size)"
|
|
source_ref: "core/Bios.c:88"
|
|
notes: |
|
|
bios_Store() writes the BIOS into ROM at address (65536 - bios_size).
|
|
The BIOS size is read dynamically from the file, not hardcoded.
|
|
bios_enabled flag is set only if bios_Load() succeeds (file found
|
|
and read without error).
|
|
|
|
region_detection:
|
|
source_ref: "core/Cartridge.c:214, core/Database.c"
|
|
notes: |
|
|
Region byte is at offset 57 in the A7800 cartridge header.
|
|
The internal database (Database.c) can override the header value.
|
|
REGION_NTSC = 0, REGION_PAL = 1 (defined in Region.h).
|