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8X8_BITMULTIPLIER

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  8 x 8- BIT MULTIPLIER  BOOTH ALGORITHM Xi Xi-1 Operation Comments Yi 0 0 Shift only String of zeros 0 1 1 Shift only String of zeros 0 1 0 Subract and shift Beginning of a string of ones  _ 1 0 1 Add and shift End of string of ones 1 Drawback: Number of partial products may increases if the multiplier is 1010101….    Second order Xi Xi-1 Xi-2 Yi Yi-1 Operation Comments 0 0 0 0 0 +0 String of zeros 0 1 0 0 1 +A A single 1 1 0 0 1 0 -2A Begining of ones 1 1 0 0 1 -A Beginning of ones 0 0 1 0 1 +A End of ones 0 1 1 1 0 +2A End of ones 1 0 1 0 1 -A A single zero 1 1 1 0 0 +0 String of ones  MODIFIED BOOTH ALGORITHM Inputs Sign Select  bi bi-1 bi-2 Func. Xj 2Xj PLj Mj 0 0 0 +0 0 1 0 0 0 1 0 +A 1 0 1 0 1 0 0 +A 1 0 1 0 1 1 0 +2A 0 1 1 0 0 0 1 -2A 0 1 0 1 0 1 1 -A 1 0 0 1 1 0 1 -A 1 0 0 1 1 1 1 +0 0 1 0 0
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