FIFO MEMORY

PURPOSE:To perform a processing operation in a short time and at high speed by a method wherein a jump address can be accessed at a data read operation. CONSTITUTION:The following are provided: a memory cell array 2; a write pointer 3 which generates a next write address whenever a data write operation is finished; and a read pointer 4 which generates a next read address whenever a data read operation is finished. A data is written in the order of addresses designated by the write pointer 3. The data is read out by reading addresses generated by the read pointer 4. The following are formed inside the read pointer 4: a jump-value holding part 5 which holds a jump value which generates a jump address; and an accumulation adder 6 which accumulates and adds preset read addresses and the jump value held by the jump-value holding part 5 after the data read operation has been finished and which computes the next read address.