Genesis Plus GX Wide¶


Type	libretro
Classification	Enhanced forks
Source	https://github.com/libretro/Genesis-Plus-GX-Wide
Upstream	https://github.com/ekeeke/Genesis-Plus-GX
Version	v1.7.4
Revision	libretro/Genesis-Plus-GX-Wide@b7ad005431f5
Profiled	2026-03-23
Profile	YAML, JSON
Cores	genesis_plus_gx_wide, genesisplusgxwide, genesisplusgx-wide
Systems	sega-megadrive, sega-megacd, sega-mastersystem, sega-gamegear, sega-sg1000, sega-pico

Technical notes

Widescreen hack of Genesis Plus GX by heyjoeway. Adds automatic widescreen rendering to Mega Drive games. BIOS loading identical to standard Genesis Plus GX (libretro.c:3547-3558).

12 files | 3 required, 9 optional | 12 in repo, 0 missing

bios_CD_U.bin required in repo north-america, latin-america #

System: sega-megacd
Size: 128.0 KB
Source: core/loadrom.c:408
Collection copy: bios/Sega/Mega CD/bios_CD_U.bin
Platforms: bizhawk SCD_m1_us_110.bin, emudeck bios_CD_U.bin, lakka bios_CD_U.bin, recalbox segacd/bios_CD_U.bin, retroarch bios_CD_U.bin, retrodeck bios/bios_CD_U.bin, retropie bios_CD_U.bin, rocknix bios_CD_U.bin, romm segacd/bios_CD_U.bin

bios_CD_E.bin required in repo europe, oceania #

System: sega-megacd
Size: 128.0 KB
Source: core/loadrom.c:411
Collection copy: bios/Sega/Mega CD/MCD_eu_100.bin
Platforms: batocera bios_CD_E.bin, bizhawk MCD_eu_100.bin, emudeck bios_CD_E.bin, lakka bios_CD_E.bin, recalbox segacd/bios_CD_E.bin, retroarch bios_CD_E.bin, retrobat bios_CD_E.bin, retrodeck bios/bios_CD_E.bin, retropie bios_CD_E.bin, rocknix bios_CD_E.bin, romm segacd/bios_CD_E.bin
Loaded for REGION_EUROPE, set by security byte 0x64 at 0x20b, the only PAL branch for Australian discs (core/loadrom.c:1059-1063).

bios_CD_J.bin required in repo japan #

System: sega-megacd
Size: 128.0 KB
Source: core/loadrom.c:414
Collection copy: bios/Sega/Mega CD/MCD_jp_100p.bin
Platforms: batocera bios_CD_J.bin, bizhawk MCD_jp_100p.bin, emudeck bios_CD_J.bin, lakka bios_CD_J.bin, recalbox segacd/bios_CD_J.bin, retroarch bios_CD_J.bin, retrobat bios_CD_J.bin, retrodeck bios/bios_CD_J.bin, retropie bios_CD_J.bin, rocknix bios_CD_J.bin, romm segacd/bios_CD_J.bin

bios_U.sms optional in repo north-america, europe #

System: sega-mastersystem
Source: core/loadrom.c:512
Collection copy: bios/Sega/Master System/.variants/bios_U.sms.ee2c29ba
REGION_USA is the default of sms_cart_region_detect for any export header outside the PAL CRC list, so European cartridges load it too (core/cart_hw/sms_cart.c:863-864).

bios_E.sms optional in repo #

System: sega-mastersystem
Source: core/loadrom.c:515
Collection copy: bios/Sega/Master System/.variants/bios_E.sms.81c3476b
REGION_EUROPE comes only from CRC lists of Codemasters and PAL-timing games, Brazilian ones included, or the PAL option (core/cart_hw/sms_cart.c:163-167, 239-258, core/loadrom.c:1155-1158).

bios_J.sms optional in repo japan #

System: sega-mastersystem
Source: core/loadrom.c:518
Collection copy: bios/Sega/Master System/MasterSystem/japanese-bios.sms
Platforms: bizhawk SMS_jp_2.1.sms, lakka bios_J.sms, recalbox mastersystem/bios_J.sms, retroarch bios_J.sms, retrobat [BIOS] Sega Master System (Japan) (v2.1).sms, retrodeck bios/bios_J.sms, retropie bios_J.sms, romm sms/bios_J.sms

bios.gg optional in repo #

System: sega-gamegear
Source: core/loadrom.c:481
Collection copy: bios/Sega/Game Gear/GG_majesco.gg
Platforms: bizhawk GG_majesco.gg, lakka bios.gg, recalbox gamegear/bios.gg, retroarch bios.gg, retrodeck bios/bios.gg, retropie bios.gg, rocknix bios.gg, romm gamegear/bios.gg

bios_MD.bin optional in repo #

System: sega-megadrive
Size: 2.0 KB
Source: libretro/libretro.c:3939
Collection copy: bios/Sega/Mega Drive/GEN_boot.md
Platforms: bizhawk GEN_boot.md, lakka bios_MD.bin, retroarch bios_MD.bin, retrodeck bios/bios_MD.bin, retropie bios_MD.bin, romm genesis/bios_MD.bin

ggenie.bin optional in repo #

System: sega-megadrive
Size: 32.0 KB
Source: core/cart_hw/ggenie.c:64, libretro/libretro.c:3803
Collection copy: bios/Sega/Mega Drive/ggenie.bin
Platforms: lakka ggenie.bin, retroarch ggenie.bin, retrodeck bios/ggenie.bin, retropie ggenie.bin, romm genesis/ggenie.bin

areplay.bin optional in repo #

System: sega-megadrive
Size: 64.0 KB
Source: core/cart_hw/areplay.c:64, libretro/libretro.c:3804
Collection copy: bios/Sega/Mega Drive/areplay.bin
Platforms: lakka areplay.bin, retroarch areplay.bin, retrodeck bios/areplay.bin, retropie areplay.bin, romm genesis/areplay.bin

sk.bin optional in repo #

System: sega-megadrive
Size: 2.0 MB
Validation: size
Source: core/cart_hw/md_cart.c:750
Collection copy: bios/Sega/Mega Drive/sk.bin
Platforms: lakka sk.bin, retroarch sk.bin, retrodeck bios/sk.bin, retropie sk.bin, romm genesis/sk.bin

sk2chip.bin optional in repo #

System: sega-megadrive
Size: 256.0 KB
Validation: size
Source: core/cart_hw/md_cart.c:756
Collection copy: bios/Sega/Mega Drive/sk2chip.bin
Platforms: lakka sk2chip.bin, retroarch sk2chip.bin, retrodeck bios/sk2chip.bin, retropie sk2chip.bin, romm genesis/sk2chip.bin

Generated on 2026-10-20T03:49:41Z