Abstract

The current study introduces an implementation of the Difference Adder Graph Algorithm (DAGA) using Verilog. DAGA, rooted in graph theory and adder circuits, aims to diminish Look Up Tables (LUTs) and power consumption in Field Programmable Gate Arrays (FPGAs). By reducing the number of LUTs required for a specific functionality, DAGA offers a promising alternative for digital circuit optimization. To evaluate its efficacy, the paper contrasts DAGA with the Multiple Constant Multiplication (MCM) method, which leverages Carry Save Adder (CSA) architecture and exploits signed-digit number representations to minimize LUT usage. Experimental findings reveal DAGA's superiority over MCM in both area and power utilization reduction. Implementation details and results indicate a remarkable 49.29% reduction in LUT count and a corresponding 41.8% decrease in power consumption for digital circuits. These outcomes underscore the effectiveness of DAGA in enhancing FPGA efficiency, highlighting its potential as a valuable tool for digital circuit designers seeking to optimize performance and power utilization.

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