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.
118 lines
3.9 KiB
YAML
118 lines
3.9 KiB
YAML
emulator: Virtual Jaguar
|
|
type: libretro
|
|
core_classification: community_fork
|
|
source: "https://github.com/libretro/virtualjaguar-libretro"
|
|
upstream: "http://shamusworld.gotdns.org/git/virtualjaguar"
|
|
profiled_date: "2025-03-25"
|
|
core_version: "v2.1.0"
|
|
display_name: "Atari - Jaguar (Virtual Jaguar)"
|
|
cores:
|
|
- virtualjaguar
|
|
systems:
|
|
- atari-jaguar
|
|
|
|
notes: |
|
|
Virtual Jaguar embeds all BIOS ROMs directly in the source code as C arrays
|
|
(bin2c generated). No external BIOS files are loaded at runtime. The core
|
|
selects between K-series and M-series boot ROMs based on vjs.biosType,
|
|
then copies 0x20000 bytes to jagMemSpace + 0xE00000 (libretro.c:902-904).
|
|
|
|
The "BIOS" core option (virtualjaguar_bios, disabled by default) controls
|
|
whether the embedded boot ROM is executed at startup. When enabled, the
|
|
boot ROM entry point is copied to jaguarMainRAM (jaguar.c:644-645).
|
|
When disabled, jaguarRunAddress is written directly, skipping the boot
|
|
animation. Either way the embedded ROM data is always present in memory.
|
|
|
|
The jagBootPath and CDBootPath fields in VJSettings exist in the struct
|
|
(settings.h:36-37) but are never populated or used in the libretro port.
|
|
No call to RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY or fopen for BIOS files.
|
|
|
|
Jaguar CD emulation: the CD boot ROM (jaguarCDBootROM, 0x40000 bytes) is
|
|
also embedded but Jaguar CD support is incomplete in this core. The
|
|
cdrom.c references "CD BIOS" in comments only.
|
|
|
|
No external BIOS files are required or loaded by this core.
|
|
|
|
files: []
|
|
|
|
analysis:
|
|
embedded_bios:
|
|
k_series_boot_rom:
|
|
source_file: src/jagbios.c
|
|
header: src/jagbios.h
|
|
symbol: jaguarBootROM
|
|
size: 131072 # 0x20000, 128 KB
|
|
description: "Jaguar K-series boot ROM"
|
|
filedb_crc: "0xFB731AAA"
|
|
filedb_name: "[BIOS] Atari Jaguar (World)"
|
|
|
|
m_series_boot_rom:
|
|
source_file: src/jagbios2.c
|
|
header: src/jagbios2.h
|
|
symbol: jaguarBootROM2
|
|
size: 131072 # 0x20000, 128 KB
|
|
description: "Jaguar M-series boot ROM"
|
|
|
|
cd_boot_rom:
|
|
source_file: src/jagcdbios.c
|
|
header: src/jagcdbios.h
|
|
symbol: jaguarCDBootROM
|
|
size: 262144 # 0x40000, 256 KB
|
|
description: "Jaguar CD boot ROM"
|
|
filedb_crc: "0x687068D5"
|
|
filedb_name: "[BIOS] Atari Jaguar CD (World)"
|
|
|
|
stubulator_93:
|
|
source_file: src/jagstub1bios.c
|
|
header: src/jagstub1bios.h
|
|
symbol: jaguarDevBootROM1
|
|
size: 131072 # 0x20000, 128 KB
|
|
description: "Jaguar Stubulator '93 dev BIOS"
|
|
filedb_crc: "0xE60277BB"
|
|
filedb_name: "[BIOS] Atari Jaguar Stubulator '93 (World)"
|
|
|
|
stubulator_94:
|
|
source_file: src/jagstub2bios.c
|
|
header: src/jagstub2bios.h
|
|
symbol: jaguarDevBootROM2
|
|
size: 131072 # 0x20000, 128 KB
|
|
description: "Jaguar Stubulator '94 dev BIOS"
|
|
filedb_crc: "0x8D15DBC6"
|
|
filedb_name: "[BIOS] Atari Jaguar Stubulator '94 (World)"
|
|
|
|
dev_cd_boot_rom:
|
|
source_file: src/jagdevcdbios.c
|
|
header: src/jagdevcdbios.h
|
|
symbol: jaguarDevCDBootROM
|
|
size: 262144 # 0x40000, 256 KB
|
|
description: "Jaguar Developer CD boot ROM"
|
|
filedb_crc: "0x55A0669C"
|
|
filedb_name: "[BIOS] Atari Jaguar Developer CD (World)"
|
|
|
|
bios_type_enum:
|
|
source_ref: "settings.h:46"
|
|
values:
|
|
- BT_K_SERIES
|
|
- BT_M_SERIES
|
|
- BT_STUBULATOR_1
|
|
- BT_STUBULATOR_2
|
|
|
|
core_option:
|
|
key: virtualjaguar_bios
|
|
label: "BIOS"
|
|
description: "Use the Jaguar BIOS, required for some games."
|
|
default: disabled
|
|
source_ref: "libretro_core_options.h:123"
|
|
|
|
bios_loading:
|
|
mechanism: embedded
|
|
load_address: "0xE00000"
|
|
load_size: "0x20000"
|
|
source_ref: "libretro.c:902-904"
|
|
selection_logic: "biosType == BT_K_SERIES ? jaguarBootROM : jaguarBootROM2"
|
|
external_loading: false
|
|
note: |
|
|
jagBootPath and CDBootPath struct fields are never set in the libretro
|
|
port. The standalone Virtual Jaguar GUI uses them but that code path
|
|
is not compiled into the libretro core.
|