The SP16 signal processor
G. Ungerboeck, Dietrich Maiwald, H.-P. Kaeser, Pierre Chevillat · 2005
The SP16 processor executes typical signal-processing tasks efficiently by overlapping in each processor cycle four functions: instruction prefetching, data-memory access and transfer of one data word over a single data bus, ALU operation, and multiplication. Despite SP16 being a one-address machine with a single data bus, it can perform filter operations with a multiplication and ALU operation in every processor cycle.