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Implementing floating-point (FP) Fast Fourier Transforms (FFT) on Field Programmable Gate Arrays (FPGAs) still represents a challenging task. The limited resources on target devices coupled with the inherent complexity of the FFT are among factors limiting widespread utilization. This paper presents the design of a scalable, FP FFT core for synthesis on Xilinx FPGAs. Its architecture uses a radix-2...
In this paper, we present the design and the implementation of an IEEE 754-compliant floating-point adder with three inputs. The design is based on a 4-level pipeline stage in order to distribute the critical paths and to maximize the performance. We examine the data dependencies to minimize the number of the pipeline stages. The design is customizable to support various floating-point formats, including...
Floating point arithmetic is used extensively in many applications across multiple market segments. While high performance IEEE754 floating point cores are available for FPGAs, a large datapath consisting of multiple cores is resource intensive, with often poor system performance. This paper will introduce a new approach to floating point datapath design for FPGAs, using fused datapath synthesis....
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