mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-11-01 15:43:45 -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.
70 lines
2.4 KiB
YAML
70 lines
2.4 KiB
YAML
emulator: Gearsystem
|
|
type: libretro
|
|
core_classification: official_port
|
|
source: "https://github.com/drhelius/Gearsystem"
|
|
upstream: "https://github.com/drhelius/Gearsystem"
|
|
profiled_date: "2026-03-23"
|
|
source_commit: "215c22f73d06871e12291025105c98470509468d"
|
|
core_version: "3.9.23-10-g215c22f"
|
|
version_basis:
|
|
kind: tag
|
|
tag: "3.9.23"
|
|
distance: 10
|
|
display_name: "Sega - MS/GG/SG-1000 (Gearsystem)"
|
|
cores:
|
|
- gearsystem
|
|
systems:
|
|
- sega-mastersystem
|
|
- sega-gamegear
|
|
- sega-sg1000
|
|
|
|
notes: |
|
|
Gearsystem is a Sega Master System / Game Gear / SG-1000 emulator by
|
|
Ignacio Sanchez (drhelius). No BIOS is required for normal operation.
|
|
|
|
The core supports optional boot ROMs for Master System and Game Gear,
|
|
controlled by core options "gearsystem_bios_sms" and "gearsystem_bios_gg"
|
|
(both disabled by default). Boot ROMs are loaded in load_bootroms()
|
|
from the system directory with fixed filenames.
|
|
|
|
SG-1000 and Game Gear in SMS mode have no BIOS support.
|
|
IsBootromEnabled() returns false for both cases.
|
|
|
|
When enabled, the boot ROM executes as on original hardware, which may
|
|
cause invalid ROMs to lock or fail to boot entirely.
|
|
|
|
files:
|
|
# --- Master System boot ROM (optional, behind gearsystem_bios_sms) ---
|
|
- name: "bios.sms"
|
|
system: sega-mastersystem
|
|
required: false
|
|
source_ref: "platforms/libretro/libretro.cpp:775, platforms/libretro/libretro.cpp:770-782 (load_bootroms)"
|
|
|
|
- name: "bios.gg"
|
|
system: sega-gamegear
|
|
required: false
|
|
source_ref: "platforms/libretro/libretro.cpp:776, platforms/libretro/libretro.cpp:770-782 (load_bootroms)"
|
|
|
|
platform_details:
|
|
mastersystem:
|
|
bios_filename: "bios.sms"
|
|
source_ref: "src/Memory.cpp:238-243"
|
|
note: |
|
|
Boot ROM loaded via LoadBootromSMS() -> LoadBootroom(path, false).
|
|
Raw binary read, stored in m_pBootromSMS. Bank count computed as
|
|
Pow2Ceil(size / 0x4000). Memory mapping controlled by port 3E bit 3.
|
|
|
|
gamegear:
|
|
bios_filename: "bios.gg"
|
|
source_ref: "src/Memory.cpp:245-250"
|
|
note: |
|
|
Boot ROM loaded via LoadBootromGG() -> LoadBootroom(path, true).
|
|
Raw binary read, stored in m_pBootromGG. Same bank computation.
|
|
Supports standard GG BIOS and Majesco 1KB variant.
|
|
|
|
sg1000:
|
|
bios_filename: null
|
|
note: |
|
|
No BIOS support. src/Memory.cpp:352-355 returns false from IsBootromEnabled()
|
|
when IsSG1000() or IsGameGearInSMSMode() is true.
|