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The performance of a comparator is significantly affected by the time taken to determine the unequal bit location so as to decide greater than, less than and equal to condition. Consequently, the delay will increase with the number of bits of a comparator. The reduction in delay so as to improve performance can be achieved with the introduction of multilevel look-ahead circuit. In this work, a unique...
In this paper, we have implemented high performance FPGA based pipelined tree architectures for a combined unsigned and two's complement comparator, and an equality comparator which checks whether the sum of two numbers is equal to a third number. The comparator architectures deviate from the combined Look-Up Table (LUT) and carry chain based implementation which is inferred by the Xilinx Synthesis...
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