Bitmap conversions

A non-transitory computer-readable medium storing computer-readable code for fabrication of an apparatus comprising:

• processing circuitry;
• and
• decoding circuitry configured to decode instructions and generate control signals for controlling the processing circuitry, wherein in response to a bitmap-index conversion instruction indicating an input bitmap, the decoding circuitry is configured to generate control signals to control the processing circuitry to perform one or more iterations to generate an index vector comprising a plurality of elements indicative of a plurality of indices of set bits in the input bitmap.

A computer program for controlling a host data processing apparatus to provide an instruction execution environment comprising:

• processing program logic;
• and
• decoding program logic configured to decode instructions and generate control signals for controlling the processing program logic, wherein in response to a bitmap-index conversion instruction indicating an input bitmap, the decoding program logic is configured to generate control signals to control the processing program logic to perform one or more iterations to generate an index vector comprising a plurality of elements indicative of one or more indices of set bits in the input bitmap.