mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-04-14 12:52:31 -05:00
d2adde9846
add core_classification, cores, upstream fields. fix false aliases (fixnes, fsuae, gearboy, higan_sfc, higan_sfc_balanced, potator, quicknes). add new profiles (fbneo_neogeo, flycast_gles2, genesis_plus_gx_wide). remove verbose notes and disclaimers.
51 lines
1.7 KiB
YAML
51 lines
1.7 KiB
YAML
emulator: Gearcoleco
|
|
type: libretro
|
|
core_classification: official_port
|
|
source: "https://github.com/drhelius/Gearcoleco"
|
|
profiled_date: "2026-03-21"
|
|
core_version: "1.0.0"
|
|
display_name: "Coleco - ColecoVision (Gearcoleco)"
|
|
cores:
|
|
- gearcoleco
|
|
systems:
|
|
- colecovision
|
|
|
|
notes: |
|
|
Gearcoleco is a ColecoVision emulator by Ignacio Sanchez (drhelius).
|
|
The ColecoVision BIOS ROM is required to run games. Without it, the
|
|
core displays a static "no BIOS" placeholder image (kNoBiosImage from
|
|
no_bios.h) and games will not execute.
|
|
|
|
The BIOS is loaded in load_bootroms() (libretro.cpp:293-305) from the
|
|
system directory. The core first tries "colecovision.rom", then falls
|
|
back to "coleco.rom" if the first file is not found.
|
|
|
|
Memory.cpp:LoadBios() validates the file size must be exactly 8192
|
|
bytes (0x2000). No hash check is performed by the core itself.
|
|
|
|
On reset, the BIOS byte at offset 0x69 is patched to select region:
|
|
0x3C for NTSC, 0x32 for PAL (Memory.cpp:184-187).
|
|
|
|
The core also supports Super Game Module (SGM) expanded RAM but that
|
|
requires no additional BIOS files.
|
|
|
|
files:
|
|
- name: "colecovision.rom"
|
|
aliases: ["coleco.rom"]
|
|
system: colecovision
|
|
required: true
|
|
size: 8192
|
|
source_ref: "platforms/libretro/libretro.cpp:293-305 (load_bootroms)"
|
|
|
|
platform_details:
|
|
colecovision:
|
|
bios_filename: "colecovision.rom"
|
|
bios_fallback: "coleco.rom"
|
|
bios_size: 8192
|
|
source_ref: "src/Memory.cpp:228-258"
|
|
notes: |
|
|
LoadBios() reads the file as raw binary. Size must be exactly 0x2000
|
|
(8192 bytes) or the load is rejected with a log message. The BIOS is
|
|
mapped at address 0x0000-0x1FFF in the ColecoVision memory map. On
|
|
reset, byte 0x69 is patched for NTSC/PAL region selection.
|