Arithmetic circuit for addition and subtraction of 5211 code numbers - has input registers coupled to separate adder and subtractor logic with additional circuit for repetitive processing

摘要

The arithmetic circuit includes inputs entered into registers coupled to the inputs of separate addition and subtraction circuits. The circuit outputs are connected to gating logic coupled to a result register. The circuits are operated by signals generated by a control circuit controlling the gating. An additional circuit is used for instances when multiple additions or subtractions are made with the same summand. This consists of a pulse counter with gating logic (21-25) and allows a multiplication factor to be selected. ADVANTAGE - Automatic repetitive addition or substraction.