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@scottmichaud Note the "mold" growing to either side of the FP/SIMD RF is the actual SIMD unit logic. Programmers tend to overestimate how much area is spent on data path (i.e. the stuff that does the actual computation) vs. logistics. In this case, coarsely eyeballing it, looks like more than 1/3rd of the entire FP/SIMD unit is just that register file.