yuzu is the world's most popular, open-source, Nintendo Switch emulator — started by the creators of Citra. It is written in C++ with portability in mind,
// Copyright 2014 Citra Emulator Project// Licensed under GPLv2 or any later version// Refer to the license.txt file included.#pragma oncenamespace HLE {externbool g_reschedule;///< If true, immediately reschedules the CPU to a new threadvoidReschedule(const char*reason);voidInit();voidShutdown();}// namespace