Files
libretro-super/dist/info/nuance_libretro.info
WizzardSK 47655b87df info: Nuance loads CHD, and is no longer x86_64 or desktop GL only
supported_extensions gained chd. The core has read CHD images since libchdr
was vendored into it - ResolveGameFile decompresses the disc and hands the
result to the same ISO9660 reader a plain .iso takes - but neither this file
nor the core's own list said so, so the frontend filtered the files out.
The core side is andkrau/NuanceResurrection#78.

Two things in here had gone stale with it:

required_hw_api said desktop GL only. The core asks for RETRO_HW_CONTEXT_OPENGLES3
on Android, iOS and tvOS - ES 3 rather than 2 because its video buffers are
declared GL_RGBA8/GL_RG8, and ES 2 has no sized internal formats.

The description said x86_64-only. The asmjit JIT still is, but everything else
builds and runs elsewhere now - the other architectures take the interpreter -
so the sentence is narrowed to the JIT rather than the core, and CHD is named
among the ways a game is loaded.
2026-09-15 22:09:54 -04:00

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# Software Information
display_name = "VM Labs - NUON (Nuance)"
authors = "Mike Perry|Carsten Waechter|WizzardSK"
supported_extensions = "run|cof|nuon|cd|iso|img|chd"
corename = "Nuance"
categories = "Emulator"
license = "Non-commercial"
permissions = ""
display_version = "0.6.7"
# Hardware Information
manufacturer = "VM Labs"
systemname = "NUON"
systemid = "nuon"
# Libretro Features
database = "VM Labs - NUON"
supports_no_game = "false"
hw_render = "true"
required_hw_api = "OpenGL >= 2.1 | OpenGL ES >= 3.0"
needs_fullpath = "true"
disk_control = "false"
savestate = "false"
savestate_features = "null"
cheats = "false"
input_descriptors = "true"
memory_descriptors = "false"
libretro_saves = "false"
core_options = "false"
core_options_version = "null"
load_subsystem = "false"
is_experimental = "false"
# Firmware / BIOS
firmware_count = 3
firmware0_desc = "bios.cof (NUON main BIOS, shipped with the emulator)"
firmware0_path = "nuance/bios.cof"
firmware0_opt = "false"
firmware1_desc = "minibios.cof (NUON minibios for MPEs 0-2)"
firmware1_path = "nuance/minibios.cof"
firmware1_opt = "false"
firmware2_desc = "minibiosX.cof (NUON extended minibios)"
firmware2_path = "nuance/minibiosX.cof"
firmware2_opt = "false"
notes = "The bios.cof / minibios.cof / minibiosX.cof files are clean-room emulator stubs that ship with the Nuance source distribution (NOT proprietary firmware dumps). They must be copied into <system>/nuance/ before loading a game."
description = "Nuance is a NUON (VM Labs) emulator. NUON was a media-processing architecture embedded in a handful of DVD players (Samsung DVD-N501/N2000, Toshiba SD-2300, RCA DRC-480N) and used to ship a small number of games (Ballistic, Tempest 3000, Merlin Racing, Iron Soldier 3, Freefall 3050 A.D., Space Invaders XL, etc.) on standard DVD discs. The Linux/libretro port adds an OpenGL render path, miniaudio output, FUSE/ISO9660 disc reading, and an asmjit-based 64-bit JIT (x86_64; other architectures run the interpreter) on top of the original Windows codebase. Considered experimental. Games are loaded from raw ISO/BIN/CUE disc images, from CHD, or from individual .run/.cof program files dumped out of the disc filesystem."