Energy-efficient inexact speculative adder with high performance and accuracy control

摘要: Inexact and approximate circuit design is a promising approach to improve performance energy efficiency in technology-scaled low-power digital systems. Such strategy suitable for error-tolerant applications involving perceptive or statistical outputs. This paper presents novel architecture of an Speculative Adder with optimized hardware advanced compensation technique either error correction reduction. general topology speculative adders improves enables precise accuracy control. A brief methodology comparative study this adder are also presented herein, demonstrating power savings up 26 % energy-delay-area reductions 60% at equivalent compared the state-of-the-art.