1. A method of identifying duplicate values in a vector register, the method comprising: generating each respective address value for a sequence of addressed locations within a constrained area of memory containing 2 N consecutive addresses using an N-bit value derived from each respective addressing value of a first vector register, generating each respective data value of a first sequence of values by combining at least a portion of each respective addressing value of the first vector register to a respective one of a sequence of integer numbers, storing the first sequence of values to the constrained memory area using the generated sequence of respective address values, loading a second first sequence of values from the constrained memory area using the generated sequence of respective address values, and comparing the first sequence of values to the second sequence of values to identify duplicate values.