Abstract: A circuit is provided for incrementing a current address of a circular buffer in an electronic memory by an increment to produce a next address including: an adder circuit for adding the current address to the increment and producing a first provisional next address; a circuit which causes the next address to be a base address plus an overshoot when the first provisional next address passes a limit address by a number equal to the overshoot, wherein for the calculation of the next address, there is provided an adder circuit including three adders receiving the current address, the increment and the limit address and producing a first and a second provisional next address and the difference between the first provisional next address and the limit address; and a selection circuit for selecting as the next address one of the two provisional next addresses, the selection being made upon the polarity of the difference between the first provisional next address and the limit address.