¶ 
License
This core is under GPLv3 license.
¶ 
Compatibility
| RPI0/RPI1 | RPI3 | RPI4/RPI400 | RPI5 | ODROID XU4 | OGA/OGS/RG351 | PC | RG353 |
|---|---|---|---|---|---|---|---|
| ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
¶ 
Features
| Feature | Supported |
|---|---|
| Restart | ✔ |
| Screenshots | ✔ |
| States | ✔ |
| Rewind | ✔ |
| Core Options | ✔ |
| Controls | ✔ |
| Remapping | ✔ |
¶ 
BIOS
¶ List of optional bios
| Filename | Description | MD5 | Provided |
|---|---|---|---|
| 128p-0.rom | Pentagon 1024K ROM | a249565f03b98d004ee7f019570069cd | ❌ |
| 128p-1.rom | Pentagon 1024K ROM | 6e09e5d3c4aef166601669feaaadc01c | ❌ |
| gluck.rom | Pentagon 1024K ROM | d5869034604dbfd2c1d54170e874fd0a | ❌ |
| trdos.rom | Pentagon 1024K ROM | 0c42e3b9ab8dd91ea096f1d0c07c55e5 0da70a5d2a0e733398e005b96b7e4ba6 14399030d8228ca1b16872ed426a5835 3f8a2a239a10b6694ec79148a292cfb4 4123fd0b5c218ef704770596dc6533e1 48b5da4079ff8394852429e53cfc607f 4a3e2b04982ac6c594adb6793be4d6e7 4da473775c4badcc83ab5d86dc8231de 53e2f417c6996df9af170e147df8e369 5c097b0fb75bb7147104d6e77db0300a 62cbbdca554c8c23676618d4c83ef40e 6459c606ff23a610e504d0387383148a 7031f2610845d39c54c97097afa8fa03 a3242d31a0624a64a56f3a6cb5484e7c a701f54355b53fa93fb8599933d518b7 a92db09c9aa3cfda478a9bf1eec7ff90 aa9f9acf05382aff569dfdadde4ef8f2 b08fa49b5de8448e94936a9d061dc0f5 b4c9634312b796063015450daef13dfa b6d8db853c24621cbd5fef3c892c976c c511eaa8fcc968cc13baf7ad80f3aea3 cc46c7bacbbaf528a864113c76d9b9c9 d6f43c70c003f07d0a694f81ff55db95 dd70541ed6a6e8176e8dace64f9344ad | ❌ |
| 256s-0.rom | Scorpion 256K ROM | b9fda5b6a747ff037365b0e2d8c4379a | ❌ |
| 256s-1.rom | Scorpion 256K ROM | 643861ad34831b255bf2eb64e8b6ecb8 | ❌ |
| 256s-2.rom | Scorpion 256K ROM | d8ad507b1c915a9acfe0d73957082926 | ❌ |
| 256s-3.rom | Scorpion 256K ROM | ce0723f9bc02f4948c15d3b3230ae831 | ❌ |
¶ Location
Put the bios like this:
┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 bios
┃ ┃ ┃ ┣ 📁 fuse
┃ ┃ ┃ ┃ ┣ 🗒 128p-0.rom
┃ ┃ ┃ ┃ ┣ 🗒 128p-1.rom
┃ ┃ ┃ ┃ ┣ 🗒 gluck.rom
┃ ┃ ┃ ┃ ┣ 🗒 trdos.rom
┃ ┃ ┃ ┃ ┣ 🗒 256s-0.rom
┃ ┃ ┃ ┃ ┣ 🗒 256s-1.rom
┃ ┃ ┃ ┃ ┣ 🗒 256s-2.rom
┃ ┃ ┃ ┃ ┣ 🗒 256s-3.rom
¶ 
Roms
¶ Supported extensions
Roms must have the extension:
- .csw
- .dsk
- .rzx
- .scl
- .sct
- .szx
- .tap
- .trd
- .tzx
- .z80
- .zip
- .7z
This system supports compressed roms in .zip/.7z format. However, be careful, it is only an archive.
The files contained in the .zip/.7z must correspond to the extensions mentioned above.
Moreover, each .zip/.7z file must contain only one compressed rom.
¶ Location
Put the roms like this:
┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 roms
┃ ┃ ┃ ┣ 📁 zxspectrum
┃ ┃ ┃ ┃ ┣ 🗒 game.zip
The roms using TOSEC format are highly recommended.
For more information about roms, go to this tutorial!
¶ 
Advanced configuration of the emulator
To be able to keep your custom configurations during an upgrade, we advise you to use our configuration override feature.
¶ Accessing to options
You can configure various options in two different ways.
- Via RetroArch menu:
┣ 📁 RetroArch Menu
┃ ┣ 📁 Core options
┃ ┃ ┣ 🧩 Name_option
- Via the file
retroarch-core-options.cfg:
┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 system
┃ ┃ ┃ ┣ 📁 configs
┃ ┃ ┃ ┃ ┣ 📁 retroarch
┃ ┃ ┃ ┃ ┃ ┣ 📁 cores
┃ ┃ ┃ ┃ ┃ ┃ ┣ 🧩 retroarch-core-options.cfg
¶ Core options
| Options | Options values | Variables (for configuration override) | Variables values |
|---|---|---|---|
| Model (needs content load) | 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 |
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 |
| Size Video Border | full ✅ / medium / small / minimum / none |
fuse_size_border |
full / medium / small / minimum / none |
| Tape Auto Load | Enabled ✅ / Disabled |
fuse_auto_load |
enabled / disabled |
| Tape Fast Load | Enabled ✅ / Disabled |
fuse_fast_load |
enabled / disabled |
| Tape Load Sound | Enabled ✅ / Disabled |
fuse_load_sound |
enabled / disabled |
| Speaker Type | tv speaker ✅ / beeper / unfiltered |
fuse_speaker_type |
tv speaker / beeper / unfiltered |
| AY Stereo Separation | none ✅ / acb / abc |
fuse_ay_stereo_separation |
none / acb / abc |
| Transparent Keyboard Overlay | Enabled ✅ / Disabled |
fuse_key_ovrlay_transp |
enabled / disabled |
| Time to Release Key in ms | 100 / 300 / 500 ✅ / 1000 |
fuse_key_hold_time |
100 / 300 / 500 / 1000 |
| Joypad Left mapping | <none> ✅ / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
fuse_joypad_left |
<none> / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
| Joypad Right mapping | <none> ✅ / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
fuse_joypad_right |
<none> / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
| Joypad Up mapping | <none> ✅ / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
fuse_joypad_up |
<none> / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
| Joypad Down mapping | <none> ✅ / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
fuse_joypad_down |
<none> / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
| Joypad Start mapping | <none> ✅ / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
fuse_joypad_start |
<none> / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
| Joypad A button mapping | <none> ✅ / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
fuse_joypad_a |
<none> / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
| Joypad B button mapping | <none> ✅ / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
fuse_joypad_b |
<none> / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
| Joypad X button mapping | <none> ✅ / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
fuse_joypad_x |
<none> / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
| Joypad Y button mapping | <none> ✅ / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
fuse_joypad_y |
<none> / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
| Joypad L button mapping | <none> ✅ / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
fuse_joypad_l |
<none> / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
| Joypad R button mapping | <none> ✅ / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
fuse_joypad_r |
<none> / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
| Joypad L2 button mapping | <none> ✅ / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
fuse_joypad_l2 |
<none> / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
| Joypad R2 button mapping | <none> ✅ / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
fuse_joypad_r2 |
<none> / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
| Joypad L3 button mapping | <none> ✅ / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
fuse_joypad_l3 |
<none> / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
| Joypad R3 button mapping | <none> ✅ / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
fuse_joypad_r3 |
<none> / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / a / b / c / d / e / f / g / h / i / j / k / l / m / n / o / p / q / r / s / t / u / v / w / x / y / z / Enter / Caps / Symbol / Space |
¶ 
External links
- Source code used: https://github.com/libretro/fuse-libretro/
- Libretro documentation: https://docs.libretro.com/library/fuse/