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Core info
License GPLv3
Extensions tzx, tap, z80, rzx, scl, trd

Fuse is a ZX Spectrum video game system emulator that can be used as a libretro core.


The Free Unix Spectrum Emulator (Fuse): an emulator of the 1980s home computer and various clones for Unix, Mac OS X and Windows.

Feature Support

These are libretro features, not frontend or standalone emulator features.

Saves Save states Rewind Netplay Cheats Controllers API Rumble Sensors Camera Location Subsystem API


Fuse does not support using external BIOS image files.


This core has a few options that can be tweaked from the core options menu. The default setting is highlighted and in italics:

  • fuse_machine (Spectrum 48K/Spectrum 48K (NTSC)/Spectrum 128K/Spectrum +2/Spectrum +2A/Spectrum +3/Spectrum +3e/Spectrum SE/Timex TC2048/Timex TC2068/Timex TS2068/Spectrum 16K/Pentagon 128K/Pentagon 512K/Pentagon 1024/Scorpion 256K): Select Spectrum model.
  • fuse_hide_border (disabled/enabled): Hide Video Border.
  • fuse_fast_load (enabled/disabled): Tape Fast Load.
  • fuse_load_sound (enabled/disabled): Tape Load Sound.
  • fuse_speaker_type (tv speaker/beeper/unfiltered): Speaker Type.
  • fuse_ay_stereo_separation (none/acb/abc): AY Stereo Separation.
  • fuse_key_ovrlay_transp (enabled/disabled): Transparent Keyboard Overlay.
  • fuse_key_hold_time (500/1000/100/300): Time to Release Key in ms.


Compatibility List/General Issues

External Links