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2: First code run

Today's first idea is to look at the VP1's MMIO registers to see if we can run some test code.

1: The beginning

My next target will be the VP1 video processor. This processor is present on most NV40 generation cards and the original NV50, corresponding to the first generation of PureVideo HD. Together with two other engines (PMPEG and PMSRCH) and an arbiter, it makes up the video decoding/encoding subsystem.