In one embodiment, a state determiner comprises a plurality of logic circuits and a second logic circuit. Each logic circuit corresponds to a respective bit position of a result of an adder. A first logic circuit corresponds to a least significant bit of the result and is coupled to receive a least significant bit of each operand of the adder and a carry-in input to the adder. Each remaining logic circuit is coupled to receive a bit from the respective bit position of each operand and a less significant bit adjacent to the bit of each operand. Each logic circuit generates an output signal indicative of whether or not a specific result occurs in the respective bit position of the result. Coupled to receive the output signals second logic circuit is configured to generate a sum signal indicative, when asserted, that the specific result occurs.