emulator: Genesis Plus GX Wide
type: libretro
core_classification: enhanced_fork
source: "https://github.com/libretro/Genesis-Plus-GX-Wide"
upstream: "https://github.com/ekeeke/Genesis-Plus-GX"
profiled_date: "2026-03-21"
core_version: "v1.7.4"
display_name: "Sega - MS/GG/MD/CD (Genesis Plus GX Wide)"
cores:
  - genesis_plus_gx_wide
systems:
  - sega-megadrive
  - sega-megacd
  - sega-mastersystem
  - sega-gamegear
  - sega-sg1000
  - sega-pico

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).

files:
  - name: bios_CD_U.bin
    system: sega-megacd
    required: true
    size: 131072
    source_ref: "core/loadrom.c:409"

  - name: bios_CD_E.bin
    system: sega-megacd
    required: true
    size: 131072
    source_ref: "core/loadrom.c:412"

  - name: bios_CD_J.bin
    system: sega-megacd
    required: true
    size: 131072
    source_ref: "core/loadrom.c:415"

  - name: bios_U.sms
    system: sega-mastersystem
    required: false
    source_ref: "core/loadrom.c:511"

  - name: bios_E.sms
    system: sega-mastersystem
    required: false
    source_ref: "core/loadrom.c:514"

  - name: bios_J.sms
    system: sega-mastersystem
    required: false
    source_ref: "core/loadrom.c:517"

  - name: bios.gg
    system: sega-gamegear
    required: false
    source_ref: "core/loadrom.c:480"

  - name: bios_MD.bin
    system: sega-megadrive
    required: false
    size: 2048
    source_ref: "libretro/libretro.c:3551"

  - name: ggenie.bin
    system: sega-megadrive
    required: false
    size: 32768
    source_ref: "core/cart_hw/ggenie.c:64"

  - name: areplay.bin
    system: sega-megadrive
    required: false
    size: 65536
    source_ref: "core/cart_hw/areplay.c:64"

  - name: sk.bin
    system: sega-megadrive
    required: false
    size: 2097152
    source_ref: "core/cart_hw/md_cart.c:867"

  - name: sk2chip.bin
    system: sega-megadrive
    required: false
    size: 262144
    source_ref: "core/cart_hw/md_cart.c:873"