VICE x64 - RetroBIOS

Type	libretro
Classification	Community forks
Source	https://github.com/libretro/vice-libretro
Upstream	https://sourceforge.net/projects/vice-emu/
Version	3.10
Profiled	2026-03-25
Cores	vice_x64, x64
Systems	commodore-c64

Technical notes

System ROMs embedded in binary: C64 BASIC (901226-01), chargen (901225-01), chargen Japanese (906143-02), kernal Rev 3 (901227-03), kernal GS (390852-01), kernal SX-64 (251104-04), kernal 4064 (901246-01), kernal Japanese (906145-02), plus all drive ROMs (1540, 1541, 1541-II, 1551, 1570, 1571, 1571CR, 1581, 1001, 2031, 2040, 3040, 4040, 9000) and VIC-II palettes. Embedded ROM check in sysfile_load takes priority over filesystem. Kernal Rev 1 (901227-01) and Rev 2 (901227-02) are NOT embedded; selecting C64 OLD NTSC or C64 OLD PAL model requires them on the filesystem in system/vice/C64/. JiffyDOS requires True Drive Emulation enabled and a 1541/1571/1581 drive type. SX-64 models use a separate JiffyDOS kernal (JiffyDOS_SX-64.bin) not declared in the .info.

7 files | 0 required, 7 optional | 7 in repo, 0 missing

JiffyDOS_C64.bin optional in repo
JiffyDOS C64 kernal replacement

• Source: retrodep/ui.c:302-303
• Platforms: lakka, recalbox, retroarch, retrodeck, retropie
• Loaded into KernalName when vice_jiffydos option is enabled (non-SX64 models).

JiffyDOS_SX-64.bin optional in repo
JiffyDOS SX-64 kernal replacement

• Source: retrodep/ui.c:295-296
• Loaded into KernalName when vice_jiffydos option is enabled and SX-64 model selected.

JiffyDOS_1541-II.bin optional in repo
JiffyDOS 1541-II drive DOS replacement

• Source: retrodep/ui.c:283-284
• Platforms: lakka, recalbox, retroarch, retrodeck, retropie
• Loaded into DosName1541ii when vice_jiffydos option is enabled.

JiffyDOS_1571_repl310654.bin optional in repo
JiffyDOS 1571 drive DOS replacement

• Source: retrodep/ui.c:285-286
• Platforms: lakka, recalbox, retroarch, retrodeck, retropie
• Loaded into DosName1571 when vice_jiffydos option is enabled.

JiffyDOS_1581.bin optional in repo
JiffyDOS 1581 drive DOS replacement

• Source: retrodep/ui.c:287-288
• Platforms: lakka, recalbox, retroarch, retrodeck, retropie
• Loaded into DosName1581 when vice_jiffydos option is enabled.

kernal-901227-01.bin optional in repo
C64 Kernal Rev 1

• Size: 8.0 KB
• Validation: size
• Source: vice/src/c64/c64-resources.c:253, vice/src/c64/c64model.c:131
• Not embedded. Loaded via sysfile from system/vice/C64/ when C64 OLD NTSC model selected.

kernal-901227-02.bin optional in repo
C64 Kernal Rev 2

• Size: 8.0 KB
• Validation: size
• Source: vice/src/c64/c64-resources.c:254, vice/src/c64/c64model.c:117
• Not embedded. Loaded via sysfile from system/vice/C64/ when C64 OLD PAL model selected.

Generated on 2026-04-03T20:37:39Z