mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-10-23 20:29:06 -05:00
Abdessamad Derraz
4bec36dcab
Batocera 43.1 builds RapidEdwin08 a0b5a033 (libretro-genesisplusgx-expanded.mk:7), not 181e8f93. Both carry the same core/, libretro/ and Makefile.libretro trees as the pin dea3528.
130 lines
5.2 KiB
YAML
130 lines
5.2 KiB
YAML
emulator: Genesis Plus GX Expanded
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type: libretro
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core_classification: enhanced_fork
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source: "https://github.com/BillyTimeGames/Genesis-Plus-GX-Expanded-Rom-Size"
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upstream: "https://github.com/ekeeke/Genesis-Plus-GX"
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profiled_date: "2026-10-23"
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source_commit: "dea3528cc0e3f54098e1fb91e3ae7e0e5d90a590"
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upstream_commit: "e366ca817f5b750ad06a8e2c5976d79b3758ea0a"
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core_version: "v1.7.4"
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display_name: "Sega - MS/GG/MD/CD (Genesis Plus GX Expanded)"
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cores:
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- genesis_plus_gx_expanded
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- genesisplusgx-expanded
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built_by:
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- batocera
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- retrobat
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systems:
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- sega-megadrive
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- sega-megacd
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- sega-mastersystem
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- sega-gamegear
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- sega-sg1000
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- sega-pico
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notes: |
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Fork of Genesis Plus GX branched from ekeeke's tree at e366ca8 (May 2022).
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Makefile.libretro builds it with MAXROMSIZE 93554432 for Sega Channel
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dumps and large hacks, and it adds a Paprium mapper (core/cart_hw/paprium.h).
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RapidEdwin08/Genesis-Plus-GX-Expanded-Rom-Size, which Batocera 43.1 builds
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as genesisplusgx-expanded at a0b5a033
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(Batocera package/batocera/emulators/retroarch/libretro/libretro-genesisplusgx-expanded/libretro-genesisplusgx-expanded.mk:7),
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carries the same core/, libretro/ and Makefile.libretro as this pin, and so
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does its tip 181e8f93. RetroBat ships genesis_plus_gx_expanded_libretro.dll
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from its own core repository, and its strings carry the same file names and
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the Paprium track list.
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The system files are those of the mainline core, under the same names and
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read the same way: fill_pathname_join builds all twelve paths from the
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system directory (libretro/libretro.c:3581-3592). The Mega CD boot ROM of the
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disc's region is required, the Master System, Game Gear and Mega Drive boot
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ROMs are read only with the genesis_plus_gx_bios option, and the lock-on
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ROMs only with the matching lock-on cartridge.
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The Paprium mapper streams its music from a paprium folder next to the
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game, MP3 tracks named after the soundtrack (core/cart_hw/paprium.h:158-261).
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Those belong to the game release. The paprium.wav reader sits under if(0)
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(core/cart_hw/paprium.h:2748-2760) and never runs.
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files:
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- name: bios_CD_U.bin
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system: sega-megacd
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region: [north-america, latin-america]
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required: true
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note: "Sega CD (NTSC-U) boot ROM. Loaded for REGION_USA, which get_region sets for every disc whose security byte at 0x20b is neither 0x64 nor 0xa1 (core/loadrom.c:1056-1070)."
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source_ref: "source core/loadrom.c:408"
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- name: bios_CD_E.bin
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system: sega-megacd
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region: [europe, oceania]
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required: true
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note: "Mega CD (PAL) boot ROM. Loaded for REGION_EUROPE, set by security byte 0x64 (core/loadrom.c:1059-1061)."
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source_ref: "source core/loadrom.c:411"
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- name: bios_CD_J.bin
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system: sega-megacd
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region: [japan]
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required: true
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note: "Mega CD (NTSC-J) boot ROM. Loaded for every other region code."
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source_ref: "source core/loadrom.c:414"
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- name: bios_U.sms
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system: sega-mastersystem
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region: [north-america, latin-america, europe, oceania]
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required: false
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note: "Master System (NTSC-U) boot ROM, loaded for REGION_USA when the bios option is on. REGION_USA is the default of sms_cart_region_detect for any export header outside its CRC list, so European, Australian and Brazilian cartridges outside that list load it too (core/cart_hw/sms_cart.c:865-866)."
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source_ref: "source core/loadrom.c:510"
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- name: bios_E.sms
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system: sega-mastersystem
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required: false
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note: "Master System (PAL) boot ROM, loaded for REGION_EUROPE when the bios option is on."
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source_ref: "source core/loadrom.c:513"
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- name: bios_J.sms
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system: sega-mastersystem
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region: [japan]
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required: false
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note: "Master System (NTSC-J) boot ROM, loaded for the Japanese region codes when the bios option is on."
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source_ref: "source core/loadrom.c:516"
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- name: bios.gg
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system: sega-gamegear
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required: false
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note: "Game Gear boot ROM, 1 KB Majesco image or a larger one, loaded when the bios option is on."
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source_ref: "source core/loadrom.c:479"
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- name: bios_MD.bin
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system: sega-megadrive
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required: false
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note: "Mega Drive TMSS boot ROM. 2 KB read, accepted when \"GENESIS OS\" sits at 0x120."
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source_ref: "source libretro/libretro.c:3713-3721"
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- name: ggenie.bin
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system: sega-megadrive
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required: false
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note: "Game Genie ROM, read when the Game Genie lock-on is selected."
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source_ref: "source core/cart_hw/ggenie.c:64, source libretro/libretro.c:3581"
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- name: areplay.bin
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system: sega-megadrive
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required: false
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note: "Action Replay (Pro) ROM, read when the Action Replay lock-on is selected."
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source_ref: "source core/cart_hw/areplay.c:64, source libretro/libretro.c:3582"
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- name: sk.bin
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system: sega-megadrive
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required: false
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size: 2097152
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validation: [size]
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note: "Sonic & Knuckles ROM for the lock-on cartridge, kept only when the read fills 2 MB."
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source_ref: "source core/cart_hw/md_cart.c:762"
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- name: sk2chip.bin
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system: sega-megadrive
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required: false
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size: 262144
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validation: [size]
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note: "Sonic & Knuckles UPMEM ROM, read after sk.bin and kept only when the read fills 256 KB."
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source_ref: "source core/cart_hw/md_cart.c:768"
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