Splitable and scalable normalizer for vector data

A computer program product for supporting vector operations in a scalar data path, the computer program product comprising:

• one or more computer readable storage devices, wherein the one or more computer readable storage devices are hardware, and program instructions stored on the one or more computer readable storage devices, the program instructions comprising:
• program instructions to determine a location for splitting a scalar mode configuration into a left half and a right half of a vector mode configuration through a formulaic relationship between an output string width, a number of fine shift multiplexers, a number of inputs per fine shift multiplexer, and a number of coarse shift multiplexers of a normalizer circuit, wherein the location for a split occurs between a last coarse shift multiplexer of the left half, controlled by a left control signal, and a first coarse shift multiplexer of the right half, controlled by a right control signal;
• program instructions to determine the number of coarse shift multiplexers in conflict at a bit position receiving data from both the left half and the right half of the vector mode configuration, wherein Rf−1 coarse shift multiplexers equals the number of coarse shift multiplexers in conflict, where Rf is defined as the number of data inputs of the fine shift multiplexers;
• program instructions to duplicate a coarse shift multiplexer in conflict at the bit position receiving data from both the left half and the right half of the vector mode configuration, resulting in one or more coarse shift multiplexers sharing the bit position, wherein a left coarse shift multiplexer at the bit position receives the left control signal and a right coarse shift multiplexer at the bit position receives the right control signal;
• program instructions to duplicate an intermediate data signal in conflict at a signal position receiving data from both the left half and the right half of the vector mode configuration, resulting in two intermediate data signals sharing the signal position, wherein a left intermediate data signal receives data from the left coarse shift multiplexer receiving the left control signal, and a right intermediate data signal receives data from the right coarse shift multiplexer receiving the right control signal;
• and
• program instructions to receive a control signal to split the scalar mode configuration and shift the leading zeros across the left half and the right half of the vector mode configuration, wherein the left half of the vector mode configuration receives the left control signal to independently control select signals left of the split, and the right half of the vector mode configuration receives the right control signal to independently control select signals right of the split.