Combinational arithmetic systems for the approximation of functions
Chin Tung, Algirdas Avižienis · 1970
The concepts of arithmetic building blocks (ABB) and combinational arithmetic (CA) nets as well as their applications have been previously reported in References 3, 4, and 5. The unique ABB, resulting from the efforts of minimizing the set of building blocks in Reference 3, is designed at the arithmetic level, employing the redundant signed-digit number system, and is to be implemented as one package by LSI techniques. The ABB performs arithmetic operations on individual digits of radix r > 2 and its main transfer functions are: the sum (symbol +) and product (symbol) of two digits, the multiple sum of m digits (m ≤ r + 1), (symbol ≠), and the reconversion to a non-redundant form (symbol RS).