Arithmetic circuit for addition, subtraction, multiplication and division - has potential memory flip=flops of main controller arranged as single unit

摘要

The arithmetic circuit comprises a main circuit and an auxiliary shift rgister with a main controller and combined decimal point and shift register controller. A number input circuit and a quotient shift register are also provided. A multiplier shift register may be incorporated in the number input circuit. The flip-flops of the main controller are arranged as a single unit. Switches are provided which trip the flip-flops into one of two settings.