Data routing networks for systolic/pipeline realization of prime factor mapping

It is pointed out that transformed data computed by systolic/pipeline processors using the data shuffling network recently proposed by T.K. Troung et al. (ibid., vol.37, p.266-73, Mar. 1988) cannot be unscrambled by simply reversing the cyclic row and cyclic column shufflings. This can be amended by the proposed restoration scheme. In addition, efficient architectures for the data routing networks with low circuit complexities are proposed. These form useful building blocks for very-high-throughput hardware realizations