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The FPGA compilation process (synthesis, map, place, and route) is a time consuming task that severely limits designer productivity. Compilation time can be reduced by saving implementation data in the form of hard macros. Hard macros consist of previously synthesized, placed and routed circuits that enable rapid design assembly because of the native FPGA circuitry (primitives and nets)which they...
Parallel-prefix adders (also known as carry-tree adders) are known to have the best performance in VLSI designs. However, this performance advantage does not translate directly into FPGA implementations due to constraints on logic block configurations and routing overhead. This paper investigates three types of carry-tree adders (the Kogge-Stone, sparse Kogge-Stone, and spanning tree adder) and compares...
The advance in FPGA technology allowed embedding different types of resources on a single chip. These resources range from a simple look-up table to a complete processor. The resources available on the FPGA fabric allow building various hardware systems for different applications with several trade-offs in terms of performance and power consumption. This paper proposes six different architectures...
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