In this paper a self-checking code-disjoint carry-dependent sum adder is proposed. To reduce the hardware overhead, only every 4-th carry is generated by a look-ahead unit. To check the input parity, internal nodes of the adder cells are utilized.
['Vitalij Ocheretnij', 'Michael Gössel', 'Egor S. Sogomonyan']
Code-disjoint carry-dependent sum adder with partial look-ahead