Nestopia is a cycle accurate emulator for the NES/Famicom.
This is the libretro port of the Nestopia emulator, based on the de facto upstream Nestopia JG fork, which lives at: https://gitlab.com/jgemu/nestopia
The libretro port contains an additional overclocking feature.
FDS support requires the FDS BIOS to be placed in the "system" directory: system/disksys.rom
Some games have ADPCM audio samples on the cartridge, which are not included in the ROM data. In order to use such samples with Nestopia, you must extract the samples into the correct location under the System directory. They are required to be in the "nestopia/samples" subdirectory named after the .zip file in MAME format: moepro.zip system/nestopia/samples/moepro/ moepro88.zip system/nestopia/samples/moepro88/ mptennis.zip system/nestopia/samples/mptennis/ terao.zip system/nestopia/samples/terao/ ftaerobi.zip system/nestopia/samples/ftaerobi/
The location of the System directory depends on the frontend and platform in use. Refer to the frontend documentation.
Changes to the libretro port should be contributed in this repository. Please contribute any changes to the emulator core to the upstream repository.
Nestopia JG (GPL-2.0-or-later) Copyright (c) 2003-2008 Martin Freij Copyright (c) 2008-2018 Nestopia UE Contributors Copyright (c) 2020-2024 Rupert Carmichael
nes_ntsc (LGPL-2.1-or-later) Copyright (c) 2006-2007 Shay Green