Bitmap conversions

Abstract

Apparatuses, systems, methods, computer-readable media, and computer code are disclosed. An apparatus comprises processing circuitry and decoding circuitry to decode instructions and generate control signals for controlling the processing circuitry. In response to a bitmap-index conversion instruction indicating an input bitmap, the decoding circuitry generates control signals to control the processing circuitry to generate an index vector comprising a plurality of elements indicative of a plurality of indices of set bits in the input bitmap. In response to an index-bitmap conversion instruction indicating an index vector comprising a plurality of indices, the decoding circuitry generates control signals to control the processing circuitry to generate a plurality of partial bitmaps, each partial bitmap comprising a set bit corresponding to a respective one of the plurality of indices, and to combine the plurality of partial bitmaps to generate an output bitmap comprising set bits at each of the plurality of indices.

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