Explicitly converting two's complement inputs to sign-magnitude before 4-bit multiplication reduces switching activity by 12.9% (logic-equivalent) to 33% (reduced range) under zero-centered input distributions.
Low-power approximate multipliers using encoded partial products and approximate compressors
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Explicit Sign-Magnitude Encoders Enable Power-Efficient Multipliers
Explicitly converting two's complement inputs to sign-magnitude before 4-bit multiplication reduces switching activity by 12.9% (logic-equivalent) to 33% (reduced range) under zero-centered input distributions.