1. A fused multiply add (FMA) unit comprising: an alignment counter configured to calculate an alignment shift count; an aligner configured to align an addend input based on the alignment shift count and output an aligned addend; a multiplier configured to multiply a first multiplicand input and a second multiplicand input and output a product; an adder configured to add the aligned addend and the product and output a sum without determining the sign of the sum or complementing the sum; a normalizer configured to receive the sum directly from the adder and normalize the sum irrespective of the sign of the sum and output a normalized sum; and a rounder configured to round and complement-adjust the normalized sum and output a final mantissa.