₹20,000.00Original price was: ₹20,000.00.₹14,000.00Current price is: ₹14,000.00.
Source : Verilog HDL
Abstract:
In this paper we describe an efficient implementation of an IEEE 754 single precision floating point multiplier targeted for Xilinx Virtex-5 FPGA. VHDL is used to implement a technology-independent pipelined design. The multiplier implementation handles the overflow and underflow cases. Rounding is not implemented to give more precision when using the multiplier in a Multiply and Accumulate (MAC) unit. With latency of three clock cycles the design achieves 301 MFLOPs. The multiplier was verified against Xilinx floating point multiplier core.
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₹20,000.00Original price was: ₹20,000.00.₹14,000.00Current price is: ₹14,000.00.
Source : Verilog HDL
Abstract:
Approximate computing is tentatively applied in some digital signal processing applications which have an inherent tolerance for erroneous computing results. The approximate arithmetic blocks are utilized in them to improve the electrical performance of these circuits. Multiplier is one of the fundamental units in computer arithmetic blocks. Moreover, the 4-2 compressors are widely employed in the parallel multipliers to accelerate the compression process of partial products. In this paper, three novel approximate 4-2 compressors are proposed and utilized in 8-bit multipliers. Meanwhile, an error-correcting module (ECM) is presented to promote the error performance of approximate multiplier with the proposed 4-2 compressors. In this paper, the number of the approximate 4-2 compressor’s outputs is innovatively reduced to one, which brings further improvements in the energy efficiency. Compared with the exact 4-2 compressors, the simulation results indicate that the proposed approximate compressors UCAC1, UCAC2, UCAC3 achieve 24.76%, 51.43%, and 66.67% reduction in delay, 71.76%, 83.06%, and 93.28% reduction in power and 54.02%, 79.32%, and 93.10% reduction in area, respectively. And the utilization of these proposed compressors in 8-bit multipliers brings 49.29% reduction of power consumption on average.
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₹12,000.00Original price was: ₹12,000.00.₹6,000.00Current price is: ₹6,000.00.
Source : Verilog HDL
Proposed Abstract:
The operation of multiplication is an often encountered need in the field of digital signal processing. Parallel multipliers provide a rapid approach for performing multiplication operations, while demanding a significant amount of space in VLSI (Very Large Scale Integration) implementations. In the majority of signal processing applications, there is a preference for using a rounded result in order to prevent an increase in the size of the word. Therefore, an important goal in the design process is to minimize the spatial demand of the rounded output multiplier. This study introduces a novel approach to parallel multiplication that efficiently calculates the products of two n-bit values by selectively summing the most important columns using a variable correction technique. This research furthermore includes a comparative analysis of the implementation of 8X8 conventional and truncated multipliers using Verilog Hardware Description Language (HDL) on Field Programmable Gate Arrays (FPGAs). The shortened multiplier demonstrates a much greater decrease in device consumption as compared to the regular multiplier. A conventional multiplier performs computations on n x n bits and produces a weighted sum of the output, consisting of 2n bits. In contrast, a truncated multiplier generates an output of just n bits from the n x n bit input. The use of logic gates in both internal and external hardware design will be decreased. Truncated multipliers provide a viable approach for achieving significant reductions in FPGA resources, latency, and power consumption compared to regular parallel multipliers, particularly in scenarios where the complete accuracy provided by the standard multiplier is unnecessary.
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