Multiplier / Adder

DB [ 15:0 ]

CB [ 15:0 ]

PB [ 15:0 ]

A [ 39:0 ]

B [ 39:0 ]

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First look at the output of the multiplier. There are two accumulators. This is unique. Accumulator A and accumulator B are both 40-bit accumulators, each consisting of a 32-bit accumulator plus 8 guard bits.