Abstract: The accumulator is the arithmetic operation elemental area, may have many kinds of realizes the structure, uses the resources which and the operation speed the different structure realizes it to consume also respectively has not same. This article studied one with to realize based on the VHDL language accumulator's design, analyzed to the respective performance compares, based on this has designed a 8bit accumulator. And in Xilinx Corporation's ISE under the 5.7e software environment, used VHDL and Verilog the HDL hardware description language carries on the design to realize and to use Modelsim to carry on the simulation confirmation, based on this has carried on the comparative analysis to its performance. 关键词:加法器 FPGA VHDL Modelsim软件
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