Fouziah Md Yassin and Ag Asri Ag Ibrahim and Zaturrawiah Ali Omar and Saturi Baco (2015) Investigation on pattern based Algorithm for division by a constant number using Verilog code for optimization on the Nelust results. (Unpublished)

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Investigation on pattern based Algorithm for division by a constant number using Verilog code for optimization on the Nelust results.pdf Download (84kB)  Preview 
Abstract
Even though sophisticated synthesis strategies are used for optimization (e.g. area and power consumption), the quality of the result heavily depends on the quality of the Register Transfer Level (RTL). For multiplication and division by a constant number that is power of 2 can be done using left shift (multiplication) and right shift (division) in RTL design. However systems commonly multiply and divided by other constant numbers, such as by 3 or 7. An implementation of division in hardware is expensive. One of the alternatives is by replacing it with cheaper adder and shifter to compute the same result. The research is to develop an algorithm of unsigned constant division via addshift method using Verilog code. The result is rounded to the nearest integer for divisors of 3, 5, 6, 7 and 9. The methodology of this research are involving design specification, high level design using C++, RTL level description using Verilog, functional verification and logic synthesis using two different technology library. The required results were obtained. The outputs (div_out) of all denominators (deno) have been rounded to the nearest integer. However, the maximum bit widths of numerators (numerator) are only 13 except for the divisor of 3 that has the maximum bit width up to 16. The synthesis result of area, power and timing shows the Significant difference between O.18\Jm Siltera technology and MIMOS O.3511m technology library. However, both technologies show the optimization of power and timing for constant division using addshift scheme.
Item Type:  Research Report 

Keyword:  Addshift scheme , algorithm , technology 
Subjects:  Q Science > QA Mathematics 
Depositing User:  NORAINI LABUK  
Date Deposited:  22 Jul 2019 12:34 
Last Modified:  22 Jul 2019 12:34 
URI:  https://eprints.ums.edu.my/id/eprint/22892 
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