Thus UltraHLE is an emulator that is partly implemented as a simulator, in contrast to projects such as MAME.
The final implementation was written in C and used the Glide API, specific to 3dfx adapters.
Due to the emulator's popularity, several Glide to DirectX translation utilities were made specifically for UltraHLE for non-3dfx video cards.
For example, the Dolphin emulator, which emulates the GameCube and Wii, uses HLE to reimplement the Wii's IOS operating system, and it also has an option for HLE of the GameCube's audio DSP.
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