Ensata
From PHWiki
Ensata is the name of the official Nintendo DS emulator provided under non-disclosure agreement only to licensed Nintendo DS developers. It makes no attempt to be cycle-accurate to the production hardware; for example, it is said to handle transformation and lighting of a scene within one cycle. Like Dualis, Ensata uses high-level emulation for the ARM7 CPU, meaning that user code must run entirely on the ARM9.
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