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    Relative Speed of Ripple Carry Adders

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    Calculate the relative speed of a 64-bit adder using ripple carry only, a ripple carry of 4-bit groups that use carry lookahead, and a ripple carry of 16-bit groups that use carry lookahead. Use the simulator located at the following url:

    Also explain, what is relative speed and how is it calculated?

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    Solution Preview

    Let us take a slightly different example to understand the notion of relative speed. If A walks at 4 Km/hr and B walks at 6 Km/hr, then relative speed of A with respect to B will be 4/6 and B's speed relative to A will be 6/4.

    The problem is simply asking us to use the mentioned simulator and compare the time taken by different adders (adder configurations) to ...

    Solution Summary

    The solution explains the notion of "relative speed" with an intuitive example. Additionally it discusses the things that govern the produced timings.