emulator: "VICE x128"
type: libretro
core_classification: community_fork
source: "https://github.com/libretro/vice-libretro"
upstream: "https://sourceforge.net/projects/vice-emu/"
profiled_date: "2026-03-25"
core_version: "3.10"
display_name: "Commodore - C128 (VICE x128)"
cores: [vice_x128, x128]
systems: [commodore-c128]
notes: >
  System ROMs embedded in binary: C128 kernal (318020-05), chargen (390059-01),
  BASIC lo (318018-04), BASIC hi (318019-04), C64 kernal (901227-03), C64 BASIC (901226-01),
  plus all drive ROMs (1540, 1541, 1541-II, 1551, 1570, 1571, 1571CR, 1581, 1001, 2031,
  2040, 3040, 4040, 9000). Embedded ROM check in sysfile_load takes priority over filesystem.
  Localized kernal/chargen variants (DE, FI, FR, IT, NO, SE, CH) are in the embedded list
  with NULL data pointers; selecting a non-international model produces uninitialized ROM data.
  JiffyDOS requires True Drive Emulation enabled and a 1541/1571/1581 drive type.
  C64 BASIC/kernal use shared names (basic-901226-01.bin, kernal-901227-03.bin) instead of
  upstream c128-specific names (basic64-901226-01.bin, kernal64-901227-03.bin) to share
  files with the C64 core in RetroArch's shared system directory.

files:
  - name: "JiffyDOS_C128.bin"
    description: "JiffyDOS C128 kernal replacement"
    required: false
    source_ref: "retrodep/ui.c:309-310"
    note: "Loaded into KernalIntName when vice_jiffydos option is enabled."

  - name: "JiffyDOS_C64.bin"
    description: "JiffyDOS C64 kernal replacement (GO64 mode)"
    required: false
    source_ref: "retrodep/ui.c:307-308"
    note: "Loaded into Kernal64Name when vice_jiffydos option is enabled."

  - name: "JiffyDOS_1541-II.bin"
    description: "JiffyDOS 1541-II drive DOS replacement"
    required: false
    source_ref: "retrodep/ui.c:283-284"
    note: "Loaded into DosName1541ii when vice_jiffydos option is enabled."

  - name: "JiffyDOS_1571_repl310654.bin"
    description: "JiffyDOS 1571 drive DOS replacement"
    required: false
    source_ref: "retrodep/ui.c:285-286"
    note: "Loaded into DosName1571 when vice_jiffydos option is enabled."

  - name: "JiffyDOS_1581.bin"
    description: "JiffyDOS 1581 drive DOS replacement"
    required: false
    source_ref: "retrodep/ui.c:287-288"
    note: "Loaded into DosName1581 when vice_jiffydos option is enabled."