Abstract:A reconfigurable architecture for efficient computation of several elementary functions, in double precision floating-point format, is presented in this paper. The main idea is to tailor the computation method towards FPGA resources of Virtex-II circuits to increase the execution performances of these functions. Our method employs a piecewise Minimax approximation and look-up tables. To attain a precision of one ULP (Unit in Last Place) without exceeding the memory available in Virtex-II FPGAs, third degree ap… Show more
“…Many designs with polynomial evaluation have been implemented in FPGA [17,22,23] and naturally, various methods have been proposed to speed up polynomial evaluation methods in FPGAs [16,20,21,[24][25][26].…”
Section: Motivationmentioning
confidence: 99%
“…On the other hand, if designs have to be approximated across the whole range, sub-intervals could be divided. Although more memory might be needed for breaking down into segmented ranges, it could significantly reduce the degree required for the same precision [26]. Figure 2.4 shows the function before and after range reduction optimization and Figure 2.5 illustrats how the subintervals are formed.…”
“…Many designs with polynomial evaluation have been implemented in FPGA [17,22,23] and naturally, various methods have been proposed to speed up polynomial evaluation methods in FPGAs [16,20,21,[24][25][26].…”
Section: Motivationmentioning
confidence: 99%
“…On the other hand, if designs have to be approximated across the whole range, sub-intervals could be divided. Although more memory might be needed for breaking down into segmented ranges, it could significantly reduce the degree required for the same precision [26]. Figure 2.4 shows the function before and after range reduction optimization and Figure 2.5 illustrats how the subintervals are formed.…”
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